// Imam kodo za ESP32-S3 MCN32R16V in TFT ST7796 4-palčni (480x320) in štiri zunanje Module ki komunicirajo z Glavni ESP. Koda Glavni ESP:
#include <SD.h>
#include <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ST7796S.h>
#include <XPT2046_Touchscreen.h>
#include <WiFi.h>
#include <WiFiMulti.h>
#include <Wire.h>
#include <Adafruit_MCP23X17.h>
#include <RTClib.h>
#include <time.h>
#include <Preferences.h>
#include <esp_now.h>
#include <esp_wifi.h>

#include <Fonts/FreeSansBold24pt7b.h>
#include <Fonts/FreeMonoBold18pt7b.h>
#include <Fonts/FreeSansBold18pt7b.h>
#include <Fonts/FreeSerifBold18pt7b.h>
#include <Fonts/FreeSerifBold12pt7b.h>
#include <Fonts/FreeSerifBold9pt7b.h>
#include <Fonts/FreeSansBold12pt7b.h>
#include <Fonts/FreeSansBold9pt7b.h>

// Definicije za trend puščice
enum TrendDirection {
  TREND_NONE = 0,
  TREND_UP = 1,
  TREND_DOWN = 2,
  TREND_STEADY = 3
};

// Tipi gumbov za različne stile
enum ButtonStyle {
  BUTTON_NORMAL = 0,
  BUTTON_COMPACT = 1,
  BUTTON_WIDE = 2,
  BUTTON_HIGHLIGHT = 3,
  BUTTON_WARNING = 4,
  BUTTON_SUCCESS = 5,
  BUTTON_INFO = 6,
  BUTTON_DISABLED = 7
};

// Struktura za konfiguracijo gumba
struct ButtonConfig {
  int x, y;
  int width, height;
  uint16_t baseColor;
  const char* label;
  ButtonStyle style;
  bool isActive;
  const char* icon;
  int textSize;
};

#define WHITE_COLOR 0xFFFF
#define BLACK_COLOR 0x0000
#define RED_COLOR 0xF800
#define GREEN_COLOR 0x07E0
#define BLUE_COLOR 0x001F

// === Časovni intervali za soil moisture ===
#define SOIL_UPDATE_INTERVAL 2000
unsigned long lastSoilUpdate = 0;

// ==================== MINIMALNI SISTEM ZA PREPREČEVANJE UTREPANJA ====================
unsigned long lastScreenDraw = 0;
#define MIN_DRAW_INTERVAL 2000

// ==================== ESP-NOW STRUKTURE ZA VSE MODULE ====================
enum ModuleType {
  MODULE_WEATHER = 1,
  MODULE_IRRIGATION = 2,
  MODULE_SHADE_MOTOR = 3
};

enum ErrorCode {
    ERR_NONE = 0,
    ERR_SENSOR_AHT = 1,
    ERR_SENSOR_BMP = 2,
    ERR_SENSOR_LDR = 3,
    ERR_I2C = 4,
    ERR_MOTOR_STALL = 10,
    ERR_LIMIT_SWITCH = 11,
    ERR_CALIBRATION = 12,
    ERR_OVER_CURRENT = 13,
    CALIB_DARK = 100,
    CALIB_BRIGHT = 101,
    CALIB_CONFIRM = 102
};

enum ShadeCommands {
  CMD_MOVE_TO_POSITION = 1,
  CMD_MOVE_STEP = 2,
  CMD_STOP = 3,
  CMD_CALIBRATE = 4,
  CMD_SET_SPEED = 5,
  CMD_SET_AUTO_MODE = 6,
  CMD_EMERGENCY_STOP = 7
};

struct ModuleData {
    uint8_t moduleId;
    uint8_t moduleType;
    unsigned long timestamp;
    uint8_t errorCode;
    float batteryVoltage;
    union {
        struct {
            float temperature;
            float humidity;
            float pressure;
            float lux;
            float bmpTemperature;
        } weather;
        struct {
            float flowRate1, flowRate2, flowRate3;
            float totalFlow1, totalFlow2, totalFlow3;
            bool relay1State, relay2State, relay3State;
        } irrigation;
        struct {
            int currentPosition;
            int targetPosition;
            bool isMoving;
            bool isCalibrated;
            bool limitSwitchOpen;
            bool limitSwitchClosed;
            float motorCurrent;
            int motorSpeed;
        } shade;
    };
};

struct CommandData {
  uint8_t targetModuleId;
  uint8_t command;
  float param1;
  float param2;
};

// ==================== GLOBALNE SPREMENLJIVKE ZA MODUL 1 ====================
float externalLux = 0;
float externalTemperature = 0;
float externalHumidity = 0;
float externalPressure = 1013.25;
bool module1Active = false;
unsigned long lastModule1Time = 0;
#define MODULE1_TIMEOUT 60000
uint8_t module1MAC[] = {0xCE, 0x4D, 0xCC, 0x3F, 0xC8, 0x4D};

// ==================== GLOBALNE SPREMENLJIVKE ZA MODUL 2 ====================
uint8_t module2MAC[] = {0xB8, 0xF8, 0x62, 0xF8, 0x65, 0xC0};
bool module2Active = false;
unsigned long lastModule2Time = 0;
#define MODULE2_TIMEOUT 60000

float module2FlowRate1 = 0;
float module2FlowRate2 = 0;
float module2FlowRate3 = 0;
float module2TotalFlow1 = 0;
float module2TotalFlow2 = 0;
float module2TotalFlow3 = 0;
bool module2Relay1State = false;
bool module2Relay2State = false;
bool module2Relay3State = false;
float module2Battery = 0;
uint8_t module2ErrorCode = 0;

// ==================== LDR KALIBRACIJA ====================
// Notranji LDR (Modul 4) - pretvorba procentov v luks
float internalLuxMin = 0.0;      // luks pri 0% (popolna tema)
float internalLuxMax = 20000.0;  // luks pri 100% (največ svetlobe)

// Zunanji LDR (Modul 1) - linearna kalibracija: izhod = (vhod + offset) * scale
float externalLuxOffset = 0.0;   // zamik v luksih
float externalLuxScale = 1.0;    // faktor skaliranja

// Stanje kalibracije
enum LDRCalibStep {
  CALIB_NONE = 0,
  CALIB_INTERNAL_DARK = 1,   // Čakam na temno za notranji
  CALIB_INTERNAL_BRIGHT = 2, // Čakam na svetlo za notranji
  CALIB_EXTERNAL_DARK = 3,   // Čakam na temno za zunanji
  CALIB_EXTERNAL_BRIGHT = 4  // Čakam na svetlo za zunanji
};
LDRCalibStep ldrCalibStep = CALIB_NONE;
float calibInternalDarkPercent = 0;
float calibInternalBrightPercent = 100;
float calibExternalDarkLux = 0;
float calibExternalBrightLux = 0;

// ==================== GLOBALNE SPREMENLJIVKE ZA MODUL 3 ====================
uint8_t module3MAC[] = {0x58, 0x8C, 0x81, 0xCB, 0xDC, 0x80};
bool module3Active = false;
unsigned long lastModule3Time = 0;
#define MODULE3_TIMEOUT 60000

int shadeCurrentPosition = 0;
int shadeTargetPosition = 0;
bool shadeIsMoving = false;
bool shadeIsCalibrated = false;
bool shadeLimitOpen = false;
bool shadeLimitClosed = false;
int shadeMotorSpeed = 0;

// ==================== MODUL 4 - VITRINA (GLAVNI VIR PODATKOV) ====================
uint8_t module4MAC[] = {0x1A, 0xD8, 0xCB, 0x3F, 0x14, 0xD8};
bool module4Active = false;
unsigned long lastModule4Time = 0;
#define MODULE4_TIMEOUT 30000

// Podatki iz Modula 4 (vitrina) - TO SO ZDAJ NOTRANJE VREDNOSTI
float module4AirTemp = 0;
float module4AirHum = 0;
float module4Pressure = 0;
int module4LightPercent = 0;
float module4SoilTemp = 0;
int module4SoilMoisture = 0;
float module4TVOC = 0;
float module4ECO2 = 0;
float module4ECH2O = 0;
String module4AirQuality = "---";
float module4Battery = 0;

// NOTRANJE SPREMENLJIVKE (zdaj iz Modula 4)
float internalTemperature = 0.0;
float internalHumidity = 0.0;
int ldrInternalPercent = 0;
float ldrInternalLux = 0.0;
int soilMoisturePercent = 0;

// Za sledenje sprememb na domačem zaslonu
float lastDrawnModule4Temp = -999;
float lastDrawnModule4Hum = -999;
int lastDrawnModule4Light = -999;
int lastDrawnModule4SoilM = -999;
float lastDrawnModule4TVOC = -999;
float lastDrawnModule4ECO2 = -999;

// ==================== PIN DEFINICIJE ====================
#define TFT_CS 5
#define TFT_RST 4
#define TFT_DC 2

// Pini za SD kartico
#define SD_CS_PIN 45
#define SD_SCK_PIN 46
#define SD_MOSI_PIN 47
#define SD_MISO_PIN 48

// Pini za TOUCH (XPT2046)
#define T_CS 39
#define T_CLK 40
#define T_DIN 41
#define T_DO 42
#define T_IRQ 3

// Pini za MCP23017 (I2C)
#define MCP_SDA 6
#define MCP_SCL 7
#define MCP_RST 8
#define MCP_ITA 9
#define MCP_ITB 10
#define MCP_ADDR 0x20

// I2C za AHT20 in BMP280 - zunanje meritve (na modulu 1, ne na glavnem)
#define EXTERNAL_SDA MCP_SDA
#define EXTERNAL_SCL MCP_SCL

// Pini za flow senzorje YF-S201
#define FLOW_SENSOR_1_PIN 18
#define FLOW_SENSOR_2_PIN 19
#define FLOW_SENSOR_3_PIN 21

// WiFi nastavitve
#define MAX_WIFI_NETWORKS 5

// NTP nastavitve
#define NTP_SERVER "pool.ntp.org"
#define GMT_OFFSET_SEC 3600
#define DAYLIGHT_OFFSET_SEC 3600

// Dimenzije statusne vrstice
#define STATUS_BAR_HEIGHT 20
#define STATUS_BAR_COLOR rgbTo565(0, 100, 200)
#define STATUS_TEXT_COLOR ST77XX_WHITE

// Ventilator - dodatni rele
#define VENTILATION_RELAY 8
#define VENTILATION_SYMBOL_X 400
#define VENTILATION_SYMBOL_Y STATUS_BAR_HEIGHT / 2 + 2

// Hamburger meni
#define HAMBURGER_X 440
#define HAMBURGER_Y STATUS_BAR_HEIGHT + 10
#define HAMBURGER_SIZE 22
#define HAMBURGER_TOUCH_PADDING 15

#define TOUCH_PADDING_RELAYS 12
#define TOUCH_PADDING_CIRCLES 20

// ==================== TROPSKE RASTLINE - VPD IN PROFILI ====================
#define MAX_PLANTS 20
#define VPD_UPDATE_INTERVAL 5000
#define MISTING_DURATION 5000
#define AIR_MOVEMENT_INTERVAL 1800000
#define AIR_MOVEMENT_DURATION 300000

#ifndef MISTING_RELAY
#define MISTING_RELAY 9
#endif

#ifndef AIR_FLOW_RELAY
#define AIR_FLOW_RELAY 10
#endif

#ifndef BOTTOM_WATERING_RELAY
#define BOTTOM_WATERING_RELAY 11
#endif

enum GrowthStage {
  STAGE_SEEDLING,
  STAGE_VEGETATIVE,
  STAGE_FLOWERING,
  STAGE_FRUITING,
  STAGE_DORMANT
};

struct TropicalPlantProfile {
  String species;
  String commonName;
  float vpdMin;
  float vpdMax;
  float tempMin;
  float tempMax;
  float humMin;
  float humMax;
  float lightMin;
  float lightMax;
  bool needsAirMovement;
  bool needsMisting;
  bool needsBottomWatering;
  String lightPreference;
  String careLevel;
  String notes;
  float soilMoistureMin;
  float soilMoistureMax;
  int wateringIntervalDays;
  int mistingIntervalHours;
  int mistingDurationSeconds;
};

struct IndividualPlant {
  int id;
  String name;
  String species;
  float currentHeight;
  int leafCount;
  unsigned long lastWatered;
  unsigned long lastFertilized;
  unsigned long lastMisted;
  float personalVPDFactor;
  bool isVariegated;
  String location;
  String imageFile;
};

// ==================== GLOBALNE SPREMENLJIVKE ZA TROPSKE RASTLINE ====================
TropicalPlantProfile tropicalSpecies[] = {
  // Alocasie
  { "Alocasia amazonica", "Alocasia 'Amazonica'", 0.5, 1.0, 22, 28, 70, 85, 8000, 15000, true, true, false, "medium", "moderate", "Potrebuje visoko vlago, ne mara direktnega sonca", 40, 70, 5, 24, 30 },
  { "Alocasia dragon scale", "Alocasia 'Dragon Scale'", 0.5, 1.0, 23, 29, 70, 85, 8000, 15000, true, true, false, "medium", "moderate", "Cudoviti kovinski listi, obozuje vlago", 40, 70, 5, 24, 30 },
  { "Alocasia zebrina", "Alocasia 'Zebrina'", 0.5, 1.0, 22, 28, 70, 85, 10000, 18000, true, true, false, "medium", "moderate", "Zanimivo steblo, potrebuje oporo", 40, 70, 5, 24, 30 },
  { "Alocasia cuprea", "Alocasia 'Cuprea'", 0.5, 1.0, 23, 29, 70, 85, 8000, 15000, true, true, false, "medium", "expert", "Redka, bakreni listi, zelo obcutljiva", 45, 75, 4, 12, 20 },
  { "Alocasia frydek", "Alocasia 'Frydek'", 0.5, 1.0, 22, 28, 70, 85, 8000, 15000, true, true, false, "medium", "moderate", "Zeleni zametni listi", 40, 70, 5, 24, 30 },
  { "Alocasia black velvet", "Alocasia 'Black Velvet'", 0.5, 1.0, 22, 28, 70, 85, 6000, 12000, true, true, false, "low", "moderate", "Crni zametni listi", 45, 75, 4, 24, 30 },
  { "Alocasia silver dragon", "Alocasia 'Silver Dragon'", 0.5, 1.0, 22, 28, 70, 85, 7000, 13000, true, true, false, "medium", "moderate", "Srebrni listi", 40, 70, 5, 24, 30 },
  // Anthuriumi
  { "Anthurium crystallinum", "Anthurium crystallinum", 0.3, 0.8, 20, 26, 75, 90, 5000, 12000, false, true, true, "low", "expert", "Cudoviti zametni listi, potrebuje zracno zemljo", 50, 80, 4, 12, 20 },
  { "Anthurium clarinervium", "Anthurium clarinervium", 0.3, 0.7, 19, 25, 75, 90, 5000, 12000, false, true, true, "low", "expert", "Izrazite zile, ne mara prevec vode", 45, 75, 5, 12, 20 },
  { "Anthurium warocqueanum", "Queen Anthurium", 0.3, 0.8, 21, 27, 75, 90, 6000, 13000, false, true, true, "low", "expert", "Kraljica Anthuriumov, zelo redka", 50, 80, 4, 12, 20 },
  { "Anthurium veitchii", "King Anthurium", 0.3, 0.8, 21, 27, 75, 90, 6000, 13000, false, true, true, "low", "expert", "Ogromni valoviti listi", 50, 80, 4, 12, 20 },
  { "Anthurium magnificum", "Anthurium magnificum", 0.3, 0.8, 20, 26, 75, 90, 5000, 12000, false, true, true, "low", "expert", "Veliki zametni listi", 50, 80, 4, 12, 20 },
  { "Anthurium regale", "Anthurium Regale", 0.3, 0.8, 21, 27, 75, 90, 5000, 12000, false, true, true, "low", "expert", "Ogromni, zametni listi", 50, 80, 4, 12, 20 },
  { "Anthurium luxurians", "Anthurium Luxurians", 0.3, 0.8, 21, 27, 75, 90, 5000, 12000, false, true, true, "low", "expert", "Hrapavi listi", 50, 80, 4, 12, 20 },
  { "Anthurium radicans", "Anthurium Radicans", 0.3, 0.8, 20, 26, 75, 90, 5000, 12000, false, true, true, "low", "expert", "Srcasti listi", 50, 80, 4, 12, 20 },
  // Philodendroni
  { "Philodendron gloriosum", "Philodendron gloriosum", 0.4, 0.9, 21, 27, 70, 85, 8000, 15000, true, false, false, "low", "moderate", "Plezoci, belozilni listi", 40, 70, 5, 0, 0 },
  { "Philodendron pink princess", "Philodendron 'Pink Princess'", 0.6, 1.2, 22, 28, 65, 80, 12000, 20000, true, false, false, "bright_indirect", "expert", "Roznati listi, potrebuje mocno svetlobo", 35, 65, 5, 0, 0 },
  { "Philodendron melanochrysum", "Philodendron melanochrysum", 0.4, 0.9, 22, 28, 70, 85, 8000, 15000, true, true, false, "medium", "expert", "Crno-zlati listi, plezoc", 45, 75, 4, 24, 30 },
  { "Philodendron verrucosum", "Philodendron verrucosum", 0.4, 0.9, 21, 27, 70, 85, 8000, 15000, true, true, false, "medium", "expert", "Zametni listi, rdece spodnje strani", 45, 75, 4, 24, 30 },
  { "Philodendron micans", "Philodendron micans", 0.5, 1.1, 20, 28, 60, 80, 6000, 15000, true, false, false, "medium", "easy", "Zametni, vijolicasti listi", 35, 65, 6, 0, 0 },
  { "Philodendron billietiae", "Philodendron billietiae", 0.5, 1.0, 22, 28, 65, 80, 10000, 18000, true, false, false, "bright_indirect", "moderate", "Dolgi, oranzni listi", 35, 65, 5, 0, 0 },
  { "Philodendron spiritus sancti", "Philodendron Spiritus Sancti", 0.4, 0.9, 22, 28, 70, 85, 8000, 15000, true, true, false, "medium", "expert", "Eden najredkejsih philodendronov", 45, 75, 4, 24, 30 },
  { "Philodendron joepii", "Philodendron Joepii", 0.4, 0.9, 22, 28, 70, 85, 8000, 15000, true, true, false, "medium", "expert", "Cudni listi kot usesa", 45, 75, 4, 24, 30 },
  { "Philodendron patriciae", "Philodendron Patriciae", 0.4, 0.9, 22, 28, 70, 85, 8000, 15000, true, true, false, "medium", "expert", "Dolgi, ozki listi", 45, 75, 4, 24, 30 },
  { "Philodendron rugosum", "Philodendron Rugosum", 0.5, 1.0, 22, 28, 65, 80, 8000, 15000, true, true, false, "medium", "expert", "Hrapavi listi", 40, 70, 5, 24, 30 },
  { "Philodendron hederaceum", "Heartleaf Philodendron", 0.6, 1.2, 19, 28, 60, 80, 5000, 15000, true, false, false, "medium", "easy", "Klasika, zelo enostaven", 30, 60, 7, 0, 0 },
  { "Philodendron brasil", "Philodendron 'Brasil'", 0.6, 1.2, 19, 28, 60, 80, 6000, 15000, true, false, false, "medium", "easy", "Zeleno-rumeni listi", 30, 60, 7, 0, 0 },
  { "Philodendron cordatum", "Philodendron Cordatum", 0.6, 1.2, 19, 28, 60, 80, 5000, 15000, true, false, false, "medium", "easy", "Srcasti listi", 30, 60, 7, 0, 0 },
  { "Philodendron squamiferum", "Philodendron Squamiferum", 0.5, 1.0, 22, 28, 65, 80, 8000, 15000, true, true, false, "medium", "moderate", "Rdece dlakavo steblo", 40, 70, 5, 24, 30 },
  // Monsterae
  { "Monstera deliciosa", "Monstera", 0.8, 1.5, 18, 30, 60, 80, 10000, 25000, true, false, false, "bright_indirect", "easy", "Klasicna, luknjicasti listi", 30, 60, 7, 0, 0 },
  { "Monstera adansonii", "Monkey Mask", 0.7, 1.3, 20, 28, 65, 80, 8000, 20000, true, false, false, "medium", "easy", "Majhni luknjicasti listi", 35, 65, 6, 0, 0 },
  { "Monstera albo", "Monstera 'Albo Variegata'", 0.6, 1.2, 21, 28, 65, 80, 12000, 20000, true, false, false, "bright_indirect", "expert", "Redka, pestra, draga", 35, 65, 5, 0, 0 },
  { "Monstera thai constellation", "Monstera Thai Constellation", 0.6, 1.2, 21, 28, 65, 80, 12000, 20000, true, false, false, "bright_indirect", "expert", "Kremasti vzorci, pocasna rast", 35, 65, 5, 0, 0 },
  // Calathee in Marantae
  { "Calathea orbifolia", "Calathea orbifolia", 0.4, 0.9, 20, 26, 70, 85, 5000, 12000, false, true, false, "low", "expert", "Veliki, srebrnozeleni listi", 50, 80, 4, 24, 30 },
  { "Calathea medallion", "Calathea 'Medallion'", 0.4, 0.9, 20, 26, 70, 85, 5000, 12000, false, true, false, "low", "moderate", "Vzorcasti listi", 50, 80, 4, 24, 30 },
  { "Maranta leuconeura", "Prayer Plant", 0.5, 1.0, 20, 27, 65, 80, 5000, 12000, false, true, false, "low", "easy", "Listi se ponoci dvignejo", 45, 75, 5, 24, 20 },
  // Druge tropske
  { "Syngonium podophyllum", "Arrowhead Plant", 0.5, 1.1, 19, 27, 60, 80, 6000, 15000, true, false, false, "medium", "easy", "Hitro rastoca", 35, 65, 6, 0, 0 },
  { "Syngonium albo", "Syngonium 'Albo Variegatum'", 0.5, 1.0, 20, 27, 65, 80, 8000, 15000, true, false, false, "bright_indirect", "moderate", "Pestri listi", 35, 65, 5, 0, 0 },
  { "Scindapsus pictus", "Satin Pothos", 0.5, 1.1, 20, 28, 55, 75, 5000, 15000, true, false, false, "medium", "easy", "Srebrnkasti listi", 30, 60, 7, 0, 0 },
  { "Hoya carnosa", "Wax Plant", 0.8, 1.5, 18, 28, 50, 70, 8000, 20000, true, false, false, "bright_indirect", "easy", "Vosceni listi, diseci cvetovi", 25, 50, 10, 0, 0 },
  { "Peperomia obtusifolia", "Baby Rubber Plant", 0.7, 1.3, 18, 26, 50, 70, 6000, 15000, true, false, false, "medium", "easy", "Meso listi", 25, 55, 8, 0, 0 },
  { "Peperomia caperata", "Emerald Ripple", 0.6, 1.2, 18, 26, 55, 75, 5000, 12000, true, false, false, "medium", "easy", "Nagubani listi", 30, 60, 7, 0, 0 },
  { "Ficus elastica", "Rubber Plant", 0.8, 1.5, 18, 28, 50, 70, 10000, 25000, true, false, false, "bright_indirect", "easy", "Veliki, temnozeleni listi", 25, 55, 8, 0, 0 },
  { "Ficus lyrata", "Fiddle Leaf Fig", 0.7, 1.4, 18, 28, 50, 70, 10000, 25000, true, false, false, "bright_indirect", "moderate", "Violinasti listi", 25, 55, 7, 0, 0 },
  { "Begonia maculata", "Polka Dot Begonia", 0.5, 1.0, 19, 26, 60, 80, 8000, 15000, true, true, false, "medium", "moderate", "Pikcasti listi, roza cvetovi", 40, 70, 5, 24, 20 },
  { "Begonia rex", "Rex Begonia", 0.5, 1.0, 19, 26, 65, 80, 6000, 12000, true, true, false, "medium", "expert", "Barviti listi", 45, 75, 4, 24, 20 },
  { "Spathiphyllum", "Peace Lily", 0.6, 1.2, 18, 26, 55, 75, 5000, 12000, true, false, false, "low", "easy", "Beli cvetovi, pokaze ko je zejna", 35, 70, 5, 0, 0 },
  { "Zamioculcas zamiifolia", "ZZ Plant", 1.0, 2.0, 18, 30, 40, 60, 3000, 10000, false, false, false, "low", "easy", "Neunicljiva, ne mara prevec vode", 15, 40, 14, 0, 0 },
  { "Sansevieria trifasciata", "Snake Plant", 1.2, 2.2, 15, 30, 30, 50, 2000, 8000, false, false, false, "low", "easy", "Skoraj neunicljiva", 10, 35, 21, 0, 0 }
};

int tropicalSpeciesCount = sizeof(tropicalSpecies) / sizeof(tropicalSpecies[0]);

IndividualPlant myPlants[MAX_PLANTS];
int plantCount = 0;
int selectedPlantId = -1;
String currentPlantSpecies = "";
float currentVPD = 0.0;
unsigned long lastVPDUpdate = 0;
unsigned long lastAirMovement = 0;
bool airMoving = false;
unsigned long mistingStartTime = 0;
bool isMisting = false;

// Kalibracija za Soil Moisture Sensor (za Modul 4, shranjena lokalno)
int SOIL_DRY_VALUE = 4095;
int SOIL_WET_VALUE = 1500;

// Nastavitve za flow senzorje YF-S201
#define PULSES_PER_LITER 450
#define FLOW_UPDATE_INTERVAL 1000

// Releji - pin definicije na MCP23017
#define RELAY_COUNT 9
#define RELAY_START_PIN 0

// Inicializacija zaslona
Adafruit_ST7796S tft(TFT_CS, TFT_DC, TFT_RST);

// Inicializacija touch
SPIClass touchSPI(HSPI);
XPT2046_Touchscreen ts(T_CS, T_IRQ);

// Inicializacija MCP23017
Adafruit_MCP23X17 mcp;

// Inicializacija RTC (DS3231)
RTC_DS3231 rtc;

// WiFi objekti
WiFiMulti wifiMulti;

// Kalibracijski parametri
#define TS_MINX 280
#define TS_MAXX 3840
#define TS_MINY 250
#define TS_MAXY 3740

#define LIGHTING_RELAY_1 4
#define LIGHTING_RELAY_2 5

// ==================== 48-URNI GRAFI - ZGODOVINA MERITEV ====================
#define GRAPH_HISTORY_SIZE 96
#define GRAPH_UPDATE_INTERVAL 1800000

float tempHistory48h[GRAPH_HISTORY_SIZE];
float humHistory48h[GRAPH_HISTORY_SIZE];
float luxHistory48h[GRAPH_HISTORY_SIZE];
int graphHistoryIndex = 0;
unsigned long lastGraphUpdate = 0;
unsigned long timeStamps48h[GRAPH_HISTORY_SIZE];

// ==================== 48-URNI GRAFI ZA ZUNANJE SENZORJE ====================
#define EXTERNAL_GRAPH_HISTORY_SIZE 96

float extTempHistory48h[EXTERNAL_GRAPH_HISTORY_SIZE];
float extHumHistory48h[EXTERNAL_GRAPH_HISTORY_SIZE];
float extLuxHistory48h[EXTERNAL_GRAPH_HISTORY_SIZE];
float extPressureHistory48h[EXTERNAL_GRAPH_HISTORY_SIZE];
int extGraphHistoryIndex = 0;
unsigned long lastExtGraphUpdate = 0;
unsigned long extTimeStamps48h[EXTERNAL_GRAPH_HISTORY_SIZE];

// Spremenljivke za SD kartico
bool sdInitialized = false;
bool useSDCard = false;
unsigned long lastSDLog = 0;
#define SD_LOG_INTERVAL 60000

#define DATA_LOG_FILE "/data_log.csv"
#define SETTINGS_FILE "/settings.txt"
#define HISTORY_FILE "/history.csv"

bool lightAutoMode = true;
bool lightManualOverride = false;
float lightOnThreshold = 50.0;
float lightOffThreshold = 1000.0;
bool lightTimeControlEnabled = false;
int lightStartHour = 18;
int lightStartMinute = 0;
int lightEndHour = 22;
int lightEndMinute = 0;

bool touchPressed = false;
int lastX = -1, lastY = -1;

bool ventilationAutoMode = true;
bool ventilationManualOverride = false;
float ventilationTempThreshold = 28.0;
float ventilationHumThreshold = 70.0;
int ventilationMinRuntime = 5;
int ventilationCooldownTime = 10;
bool ventilationDayMode = true;
float ventilationDayTempThreshold = 28.0;
float ventilationDayHumThreshold = 70.0;
float ventilationNightTempThreshold = 22.0;
float ventilationNightHumThreshold = 75.0;
int ventilationDayMinRuntime = 5;
int ventilationNightMinRuntime = 10;
int ventilationDayCooldown = 10;
int ventilationNightCooldown = 20;
int dayNightSwitchHour = 22;
int nightDaySwitchHour = 6;

// ==================== SPREMENLJIVKE ZA ČASOVNO KRMILJENJE RAZSVETLJAVE ====================
#define MAX_TIME_BLOCKS 4
#define DAYS_IN_WEEK 7

typedef struct {
  bool enabled;
  bool relayOn;
  int startHour;
  int startMinute;
  int endHour;
  int endMinute;
  bool days[DAYS_IN_WEEK];
  String description;
} TimeBlock;

TimeBlock timeBlocks[MAX_TIME_BLOCKS];
bool lightingAutoMode = true;
bool lightingManualOverride = false;
int currentEditingBlock = -1;
unsigned long lastLightingCheck = 0;
#define LIGHTING_CHECK_INTERVAL 1000

int selectedLightBlock = -1;
bool editTimeMode = false;
bool editDaysMode = false;
bool editActionMode = false;
int editTimeIndex = 0;

float shadeMinLux = 0.0;
float shadeMaxLux = 5000.0;
int shadeCalculatedPosition = 0;
int shadeActualPosition = 0;
bool shadeAutoControl = true;
unsigned long lastShadeUpdate = 0;
#define SHADE_UPDATE_INTERVAL 1000

bool wifiConnected = false;
bool autoConnecting = false;
String wifiSSID = "";
String wifiIP = "";
int wifiRSSI = 0;
unsigned long lastWifiCheck = 0;
#define WIFI_CHECK_INTERVAL 10000

unsigned long lastStatusUpdate = 0;
#define STATUS_UPDATE_INTERVAL 2000

unsigned long messageTimeout = 0;
bool showSyncMessage = false;

bool mcpInitialized = false;
unsigned long lastMCPUpdate = 0;
#define MCP_UPDATE_INTERVAL 100
uint16_t lastGPIOState = 0;

bool rtcInitialized = false;
String currentTime = "";
String currentDate = "";
unsigned long lastRTCUpdate = 0;
#define RTC_UPDATE_INTERVAL 1000

// ==================== DVO-NIVOJSKA ZGODOVINA VLAGE TAL ====================
#define SCREEN_HISTORY_SIZE 240
#define ARCHIVE_HISTORY_SIZE 365

float screenSoilHistory[SCREEN_HISTORY_SIZE] = { 0 };
int screenHistoryIndex = 0;
unsigned long lastScreenHistoryUpdate = 0;
#define SCREEN_HISTORY_INTERVAL 10800000

struct DailyRecord {
  uint32_t date;
  float avgMoisture;
  float minMoisture;
  float maxMoisture;
  int samples;
};

DailyRecord yearArchive[ARCHIVE_HISTORY_SIZE] = { 0 };
int archiveIndex = 0;
unsigned long currentDay = 0;
float dailySum = 0;
float dailyMin = 100;
float dailyMax = 0;
int dailyCount = 0;

volatile unsigned long pulseCount1 = 0;
volatile unsigned long pulseCount2 = 0;
volatile unsigned long pulseCount3 = 0;
float flowRate1 = 0.0;
float flowRate2 = 0.0;
float flowRate3 = 0.0;
float totalFlow1 = 0.0;
float totalFlow2 = 0.0;
float totalFlow3 = 0.0;
unsigned long oldTime = 0;
unsigned long lastFlowUpdate = 0;

bool ntpSynchronized = false;
unsigned long lastNTPSync = 0;
#define NTP_SYNC_INTERVAL 3600000

bool relayStates[RELAY_COUNT] = { false, false, false, false, false, false, false, false, false };
unsigned long lastRelayUpdate = 0;
#define RELAY_UPDATE_INTERVAL 500
bool relayControlEnabled = true;

float targetTempMin = 18.0;
float targetTempMax = 25.0;
float targetHumMin = 40.0;
float targetHumMax = 60.0;
bool autoControlEnabled = true;
unsigned long lastControlCheck = 0;
#define CONTROL_CHECK_INTERVAL 5000

// WIFI OMREŽJA IN GESLA
const char* wifiNetworks[MAX_WIFI_NETWORKS][2] = {
  { "WiFi-192", "sijuan5768" },
  { "", "" },
  { "", "" },
  { "", "" },
  { "", "" }
};

// ==================== SPREMENLJIVKE ZA OPOZORILA ====================
#define WARNING_THRESHOLD_PERCENT 15
#define WARNING_DISPLAY_TIME 5000
#define WARNING_BLINK_INTERVAL 500

struct WarningStatus {
  bool soilWarning;
  bool tempWarning;
  bool humWarning;
  unsigned long soilWarningStart;
  unsigned long tempWarningStart;
  unsigned long humWarningStart;
  float soilValue;
  float soilMin;
  float soilMax;
  float tempValue;
  float tempMin;
  float tempMax;
  float humValue;
  float humMin;
  float humMax;
};

WarningStatus warnings = { false, false, false, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
unsigned long lastWarningBlink = 0;
bool warningBlinkState = false;

// Stanje aplikacije
enum AppState {
  STATE_MAIN_MENU,
  STATE_WIFI_SETUP,
  STATE_WIFI_CONNECTING,
  STATE_WIFI_CONNECTED,
  STATE_MCP23017_TEST,
  STATE_RTC_INFO,
  STATE_INTERNAL_SENSORS_INFO,
  STATE_EXTERNAL_SENSORS_INFO,
  STATE_SOIL_MOISTURE_INFO,
  STATE_FLOW_SENSORS_INFO,
  STATE_RELAY_CONTROL,
  STATE_BOOTING,
  STATE_HOME_SCREEN,
  STATE_TEMP_HUM_CONTROL,
  STATE_SETTINGS,
  STATE_SHADE_CONTROL,
  STATE_LIGHTING_CONTROL,
  STATE_EDIT_LIGHTING_BLOCK,
  STATE_LIGHT_AUTO_CONTROL,
  STATE_INTERNAL_GRAPH_48H,
  STATE_EXTERNAL_GRAPH_48H,
  STATE_EDIT_LIGHT_TIME,
  STATE_VENTILATION_CONTROL,
  STATE_EDIT_VENTILATION,
  STATE_SD_MANAGEMENT,
  STATE_MODULE2_INFO,
  STATE_TROPICAL_PLANTS,
  STATE_ADD_PLANT,
  STATE_PLANT_DETAILS,
  STATE_SELECT_PLANT_FOR_VIEW,
  STATE_SELECT_PLANT_FOR_ADVICE,
  STATE_YEAR_ARCHIVE,
  STATE_SOIL_MOISTURE_GRAPH,
  STATE_AIR_QUALITY,
  STATE_LDR_CALIBRATION,
  STATE_MODULE4_INFO
};

AppState currentState = STATE_BOOTING;
AppState lastState = STATE_BOOTING;
unsigned long lastStateChangeTime = 0;
#define STATE_CHANGE_DEBOUNCE 500

uint16_t lastMCPTestState = 0xFFFF;
unsigned long lastMCPDisplayTime = 0;
#define MCP_DISPLAY_MIN_INTERVAL 300
int lastActivePinsCount = -1;

unsigned long systemInfoStartTime = 0;
#define SYSTEM_INFO_TIMEOUT 15000

Preferences preferences;

// ==================== SPREMENLJIVKE ZA DODAJANJE RASTLIN ====================
String tempPlantName = "";
int tempSpeciesIndex = 0;
bool tempIsVariegated = false;
int tempLocationZone = 1;
bool editingName = false;
String nameInputBuffer = "";

// ==================== SISTEM ZA VEČPLASTNO RISANJE DOMAČEGA ZASLONA ====================
bool homeScreenBackgroundDrawn = false;
bool homeScreenStaticElementsDrawn = false;

float lastDrawnInternalTemp = -999;
float lastDrawnInternalHum = -999;
float lastDrawnSoilPercent = -999;
float lastDrawnExternalTemp = -999;
float lastDrawnExternalHum = -999;
float lastDrawnInternalLux = -999;
float lastDrawnExternalLux = -999;
int lastDrawnShadeCalcPos = -999;
int lastDrawnShadeActualPos = -999;
bool lastDrawnRelays[RELAY_COUNT];
bool lastDrawnModule1Active = false;
bool lastDrawnModule2Active = false;
bool lastDrawnModule3Active = false;
bool lastDrawnVentState = false;
TrendDirection lastDrawnTempTrend = TREND_NONE;
TrendDirection lastDrawnHumTrend = TREND_NONE;
unsigned long lastHomeScreenRedraw = 0;
unsigned long lastHomeScreenPartialUpdate = 0;
float lastDrawnExternalLuxBar = -999;

// ==================== DEKLARACIJE FUNKCIJ ====================
template<typename T, typename U>
T myMin(T a, U b) {
  return (a < b) ? a : static_cast<T>(b);
}

template<typename T, typename U>
T myMax(T a, U b) {
  return (a > b) ? a : static_cast<T>(b);
}

uint16_t rgbTo565(uint8_t r, uint8_t g, uint8_t b) {
  return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
}

// ==================== TREND TRACKING ====================
#define TREND_HISTORY_SIZE 900
#define TREND_THRESHOLD 0.1
#define TREND_TIMEOUT 900000

float tempHistory[TREND_HISTORY_SIZE];
float humHistory[TREND_HISTORY_SIZE];
int historyIndex = 0;
unsigned long lastHistoryUpdate = 0;
#define HISTORY_UPDATE_INTERVAL 1000

TrendDirection tempTrend = TREND_NONE;
TrendDirection humTrend = TREND_NONE;
unsigned long lastTrendChangeTime = 0;
float lastTrendTemp = 0.0;
float lastTrendHum = 0.0;

// Barve
#define DARK_GRAY rgbTo565(64, 64, 64)
#define HIGHLIGHT_GREEN rgbTo565(0, 255, 0)
#define MCP_INPUT_COLOR rgbTo565(100, 200, 100)
#define MCP_OUTPUT_COLOR rgbTo565(200, 100, 100)
#define MCP_ACTIVE_COLOR rgbTo565(255, 255, 0)
#define TEMP_COLOR rgbTo565(255, 100, 100)
#define HUMIDITY_COLOR rgbTo565(100, 150, 255)
#define PRESSURE_COLOR rgbTo565(100, 255, 100)
#define INTERNAL_COLOR rgbTo565(255, 150, 50)
#define EXTERNAL_COLOR rgbTo565(50, 150, 255)
#define LIGHT_COLOR rgbTo565(255, 255, 100)
#define SOIL_COLOR rgbTo565(139, 69, 19)
#define WIFI_STRONG_COLOR rgbTo565(0, 255, 0)
#define WIFI_MEDIUM_COLOR rgbTo565(255, 255, 0)
#define WIFI_WEAK_COLOR rgbTo565(255, 100, 0)
#define WIFI_NONE_COLOR rgbTo565(255, 50, 50)
#define FLOW_COLOR_1 rgbTo565(255, 100, 100)
#define FLOW_COLOR_2 rgbTo565(100, 255, 100)
#define FLOW_COLOR_3 rgbTo565(100, 100, 255)
#define RELAY_ON_COLOR rgbTo565(255, 50, 50)
#define RELAY_OFF_COLOR rgbTo565(50, 200, 50)
#define RELAY_DISABLED_COLOR rgbTo565(100, 100, 100)
#define CALIBRATION_COLOR rgbTo565(255, 165, 0)
#define NORMAL_COLOR rgbTo565(50, 200, 50)
#define TOO_LOW_COLOR rgbTo565(50, 100, 255)
#define TOO_HIGH_COLOR rgbTo565(255, 50, 50)
#define WARNING_COLOR rgbTo565(255, 150, 50)
#define PROGRESS_BG_COLOR rgbTo565(100, 100, 100)
#define PROGRESS_FG_COLOR rgbTo565(0, 150, 255)
#define TARGET_RANGE_COLOR rgbTo565(255, 200, 50)
#define EXT_TEMP_CIRCLE_COLOR rgbTo565(255, 100, 100)
#define EXT_TEMP_PROGRESS_COLOR rgbTo565(200, 50, 50)
#define EXT_HUM_CIRCLE_COLOR rgbTo565(100, 150, 255)
#define EXT_HUM_PROGRESS_COLOR rgbTo565(50, 100, 200)
#define SOIL_CIRCLE_COLOR rgbTo565(139, 69, 19)
#define SOIL_PROGRESS_COLOR rgbTo565(100, 50, 10)
#define ARCHIVE_COLOR rgbTo565(100, 150, 200)
#define YELLOW_COLOR 0xFFE0

// ==================== DEKLARACIJE FUNKCIJ ====================
void showSDCardManagementScreen();
void handleSDCardManagementTouch(int x, int y);
bool initializeSDCard();
void createSDStructure();
void logDataToSD();
void saveSettingsToSD();
void saveHistoryToSD();
void loadSettingsFromSD();
void toggleStorageMode();
void testSDHardware();
void sendModuleCommand(uint8_t moduleId, int command, float param1, float param2);
void sendModule1Command(int command, float param1, float param2);
void sendModule2Command(int command, float param1, float param2);
void setModule2Relay(int relayNum, bool state);
void markSettingsChanged();
void clearSettingsChangedIndicator();
void initializeGraphHistory();
void initializeExternalGraphHistory();
void updateExternalGraphHistory();
void updateGraphHistory();
void saveAllSettings(bool isShutdown = false);
void resetToDefaultSettings();
void loadAllSettings(bool isBoot = false);
void drawVentilationSymbol(int x, int y, bool isOn, bool isLarge = false);
void drawElegantVentilationIndicator(int x, int y, bool isOn);
void updateVentilationControl();
void drawDayNightIndicator(int x, int y, bool isDayMode);
void showVentilationControlScreen();
void handleVentilationControlTouch(int x, int y);
void loadVentilationSettings();
void checkSettingsIntegrity();
void fillArc(int x, int y, int start_angle, int end_angle, int inner_r, int outer_r, uint16_t color);
void initializeTimeBlocks();
void printLightingSettings();
bool isWithinTimeWindow();
bool isTimeInBlock(int blockIndex);
bool shouldRelaysBeOn();
void checkAndControlLighting();
void showLightAutoControlScreen();
void handleLightAutoControlTouch(int x, int y);
void handleEditLightTimeTouch(int x, int y);
void showEditLightTimeScreen();
void showLightingControlScreen();
void drawSimpleButton(int x, int y, int w, int h, uint16_t color, const char* label);
void showEditLightingBlockScreen(int blockIndex);
void drawWideButton(int x, int y, int w, int h, uint16_t color, const char* label);
void drawCompactButton(int x, int y, int w, int h, uint16_t color, const char* label, bool highlight);
String getNextLightingEvent();
void drawRelayStatusIndicator(int x, int y, bool isOn);
void handleLightingControlTouch(int x, int y);
void handleEditLightingBlockTouch(int x, int y);
void showShadeControlScreen();
void handleShadeControlTouch(int x, int y);
void drawClockwiseProgressRing(int x, int y, int outerRadius, int innerRadius, float currentValue, float minValue, float maxValue, uint16_t ringColor);
void drawClockwiseDoubleRing(int x, int y, int outerRadius, int middleRadius, int innerRadius, float currentValue, float minValue, float maxValue, float targetMin, float targetMax, uint16_t currentColor);
void autoControlRelays();
void drawHorizontalProgressBarWithLabel(int x, int y, int width, int height, int value, const char* label, uint16_t color);
void drawHomeScreenBackground();
void drawHomeScreenStaticElements();
void updateHomeScreenDynamicValues();
void showHomeScreen();
void handleHomeScreenTouch(int x, int y);
void showTempHumControlScreen();
void drawCenteredButtonWithText(int x, int y, int w, int h, uint16_t color, const char* text);
void handleTempHumControlTouch(int x, int y);
void initializeRelays();
void loadRelayStates();
void setRelay(int relayNum, bool state);
void toggleRelay(int relayNum);
void setAllRelays(bool state);
void IRAM_ATTR pulseCounter1();
void IRAM_ATTR pulseCounter2();
void IRAM_ATTR pulseCounter3();
void initializeFlowSensors();
void updateFlowSensors();
void resetFlowTotals();
void initializeMotor();
void calculateShadePosition();
void updateMotorPosition();
void setMotorPosition(int position);
void scanI2CDevices();
void updateSoilMoisture();
String getSoilMoistureString();
void initializeRTC();
void updateRTC();
String getRTCTemperature();
void showRTCInfo();
void handleRTCInfoTouch(int x, int y);
void saveSettingsOnShutdown();
void loadSettingsOnBoot();
void showInternalGraph48hScreen();
void drawThickLine(int x1, int y1, int x2, int y2, int thickness, uint16_t color);
void showExternalGraph48hScreen();
void saveExternalGraphHistory();
void showModule2Info();
void handleModule2InfoTouch(int x, int y);
void diagnoseESPNow();
void diagnoseSDCard();
void diagnoseSDPins();
void testSDCard();
void setupWatchdogForShutdown();
void emergencySaveOnPowerLoss();
void testPinsBeforeSD();
void debugSDCard();
void listSDFiles();
void autoSaveSettings();
void emergencySaveSettings();
void saveRelayStates();
void redrawCurrentScreen();
void updateTrendHistory();
void calculateTrends();
void drawTrendArrow(int x, int y, int direction, uint16_t color);
void initializeMCP23017();
void updateMCP23017();
void showBootScreen();
void drawHighlightedTitle(int x, int y, const char* text, int textSize);
void drawStatusBar();
void drawCompactWiFiIcon(int x, int y);
void drawCompactWiFiBars(int x, int y, int rssi);
uint16_t getSignalColor(int rssi);
void updateStatusBar();
void drawGradientBackground();
uint16_t blendColor(uint16_t color1, uint16_t color2, uint8_t ratio);
void drawModernButton(int x, int y, int w, int h, uint16_t baseColor, const char* label, const char* iconType);
void highlightButton(int x, int y, int w, int h, bool highlight);
void drawMenuButtonWithoutIcon(int x, int y, int w, int h, uint16_t color, const char* label);
void showMainMenu();
void handleMainMenuTouch(int x, int y);
void showWiFiQuickInfo();
void showRelayControl();
void handleRelayControlTouch(int x, int y);
void showFlowSensorsInfo();
void handleFlowSensorsTouch(int x, int y);
void showFlowGraphScreen();
void showSoilMoistureInfo();
void handleSoilMoistureTouch(int x, int y);
void saveSoilHistory();
void showSoilMoistureGraphScreen();
void calibrateSoilSensor();
void showMCP23017Test();
void drawAllMCPPins();
void displayMCP23017Pins();
void updateActivePinsCount(uint16_t gpioState);
void handleMCP23017Test();
void handleMCP23017TestTouch(int x, int y);
void showInternalSensorsInfo();
void handleInternalSensorsTouch(int x, int y);
void handleInternalGraph48hTouch(int x, int y);
void showExternalSensorsInfo();
void handleExternalGraph48hTouch(int x, int y);
void handleExternalSensorsTouch(int x, int y);
void setupWiFi();
void autoConnectToWiFi();
void checkWiFiStatus();
void connectToWiFi();
void handleWiFiConnecting();
void showWiFiConnectedScreen();
void showWiFiFailedScreen();
void handleWiFiConnectedTouch(int x, int y);
void scanWiFiNetworks();
void drawWiFiBars(int x, int y, int rssi);
void handleTouch();
void onModuleDataRecv(const uint8_t* mac, const uint8_t* incomingData, int len);
void sendShadeCommand(int command, float param1, float param2);
void moveShadeTo(int position);
void calibrateShade();
void stopShade();
void emergencyStopShade();
void setShadeSpeed(int speed);
void setShadeAutoMode(bool autoMode);
void initESPNow();
void onDataSent(const uint8_t* mac_addr, esp_now_send_status_t status);
void checkModulesTimeout();
void showSelectPlantForViewScreen();
void showSelectPlantForAdviceScreen();
bool haveValuesChanged();
void showYearArchiveScreen();
void saveYearArchiveToSD();
void loadYearArchiveFromSD();
void drawHamburgerMenu(int x, int y, int size);
void drawWarningBar();
void checkWarnings();
void showAdvicePopup(String advice);
void deletePlant(int plantId);
void showPlantDetailsScreen(int plantId);
void showAddPlantScreen();
void showTropicalPlantsMenu();
int findPlantSpeciesIndex(String species);
float calculateVPD(float temperature, float humidity);
String getVPDDescription(float vpd);
uint16_t getVPDColor(float vpd);
void updateVPD();
int addPlantToCollection(String name, String species, bool isVariegated, String location);
void autoConfigureForPlant(int speciesIndex);
void showMessage(String message, uint16_t color);
void savePlantCollection();
void loadPlantCollection();
void controlVPDForPlants();
void startMistingForPlant(int plantId);
void startBottomWatering(int plantId);
void updateAirMovement();
void checkMistingTimeout();
String getPlantCareAdvice(int plantId);
void showCurrentSettings();
void showAirQualityScreen();
void showModule4Info();
void forceFullHomeScreenRedraw();
void animateHamburgerMenu();
void showTemporaryMessage(String message, uint16_t color, int durationMs);
void updateHomeScreenRelays();

// ==================== GLOBALNE SPREMENLJIVKE ZA SHRANJEVANJE ====================
bool settingsChangedFlag = false;
unsigned long lastSettingsChangeTime = 0;
unsigned long lastAutoSaveTime = 0;

// ==================== KONSOLIDIRANO SHRANJEVANJE VSEH NASTAVITEV ====================
void markSettingsChanged() {
  settingsChangedFlag = true;
  lastSettingsChangeTime = millis();
  if (currentState != STATE_BOOTING) {
    tft.fillRect(470, 5, 6, 6, rgbTo565(255, 200, 0));
  }
  Serial.println("✓ Nastavitve spremenjene - oznaceno za shranjevanje");
}

void clearSettingsChangedIndicator() {
  settingsChangedFlag = false;
  if (currentState != STATE_BOOTING) {
    tft.fillRect(470, 5, 6, 6, STATUS_BAR_COLOR);
  }
  Serial.println("✓ Indikator sprememb pociscen");
}

void initializeGraphHistory() {
  for (int i = 0; i < GRAPH_HISTORY_SIZE; i++) {
    tempHistory48h[i] = NAN;
    humHistory48h[i] = NAN;
    luxHistory48h[i] = NAN;
    timeStamps48h[i] = 0;
  }
  Serial.println("48-urna zgodovina meritev inicializirana");
}

void initializeExternalGraphHistory() {
  for (int i = 0; i < EXTERNAL_GRAPH_HISTORY_SIZE; i++) {
    extTempHistory48h[i] = NAN;
    extHumHistory48h[i] = NAN;
    extLuxHistory48h[i] = NAN;
    extPressureHistory48h[i] = NAN;
    extTimeStamps48h[i] = 0;
  }
  Serial.println("48-urna zgodovina zunanjih meritev inicializirana");
}

void updateExternalGraphHistory() {
  unsigned long currentTime = millis();
  if (currentTime - lastExtGraphUpdate > GRAPH_UPDATE_INTERVAL) {
    bool hasValidData = false;

    if (!isnan(externalTemperature) && externalTemperature > -50 && externalTemperature < 100) {
      hasValidData = true;
    }

    if (!isnan(externalHumidity) && externalHumidity >= 0 && externalHumidity <= 100) {
      hasValidData = true;
    }

    if (externalLux > 0 && externalLux < 100000) {
      hasValidData = true;
    }

    if (hasValidData) {
      extTempHistory48h[extGraphHistoryIndex] = isnan(externalTemperature) ? 0 : externalTemperature;
      extHumHistory48h[extGraphHistoryIndex] = isnan(externalHumidity) ? 0 : externalHumidity;
      extLuxHistory48h[extGraphHistoryIndex] = (externalLux < 0 || externalLux > 100000) ? 0 : externalLux;

      if (!isnan(externalPressure)) {
        extPressureHistory48h[extGraphHistoryIndex] = externalPressure;
      } else {
        extPressureHistory48h[extGraphHistoryIndex] = 0;
      }

      extTimeStamps48h[extGraphHistoryIndex] = currentTime;

      static unsigned long lastDebugSave = 0;
      if (currentTime - lastDebugSave > 30000) {
        Serial.printf("📊 SHRANJEVANJE: Index=%d, Čas=%lu, T=%.1f°C, H=%.1f%%, Lux=%.1f\n", 
                      extGraphHistoryIndex, currentTime,
                      externalTemperature, externalHumidity, externalLux);
        lastDebugSave = currentTime;
      }

      extGraphHistoryIndex = (extGraphHistoryIndex + 1) % EXTERNAL_GRAPH_HISTORY_SIZE;

      if (extGraphHistoryIndex % 10 == 0) {
        Serial.println("💾 Shranjujem zgodovino v FLASH...");
        preferences.begin("ext-graph-data", false);
        preferences.putInt("extGraphIndex", extGraphHistoryIndex);
        for (int i = 0; i < EXTERNAL_GRAPH_HISTORY_SIZE; i++) {
          preferences.putFloat(("extTemp" + String(i)).c_str(), extTempHistory48h[i]);
          preferences.putFloat(("extHum" + String(i)).c_str(), extHumHistory48h[i]);
          preferences.putULong(("extTime" + String(i)).c_str(), extTimeStamps48h[i]);
        }
        preferences.end();
      }
    } else {
      static unsigned long lastNoDataPrint = 0;
      if (currentTime - lastNoDataPrint > 60000) {
        Serial.printf("⚠️ NI PODATKOV ZA SHRANJEVANJE: T=%.1f, H=%.1f, Lux=%.1f, modul1Active=%d\n",
                      externalTemperature, externalHumidity, externalLux, module1Active);
        lastNoDataPrint = currentTime;
      }
    }

    lastExtGraphUpdate = currentTime;
  }
}

void updateGraphHistory() {
  unsigned long currentTime = millis();

  if (currentTime - lastGraphUpdate > GRAPH_UPDATE_INTERVAL) {
    if (!isnan(internalTemperature) && !isnan(internalHumidity)) {
      tempHistory48h[graphHistoryIndex] = internalTemperature;
      humHistory48h[graphHistoryIndex] = internalHumidity;
      luxHistory48h[graphHistoryIndex] = ldrInternalLux;
      timeStamps48h[graphHistoryIndex] = currentTime;

      static unsigned long lastDebugSave = 0;
      if (currentTime - lastDebugSave > 30000) {
        Serial.printf("📊 NOTRANJE: Index=%d, T=%.1f°C, H=%.1f%%, Lux=%.1f\n", 
                      graphHistoryIndex, internalTemperature, internalHumidity, ldrInternalLux);
        lastDebugSave = currentTime;
      }

      graphHistoryIndex = (graphHistoryIndex + 1) % GRAPH_HISTORY_SIZE;
      
      if (graphHistoryIndex % 10 == 0) {
        Serial.println("💾 Shranjujem notranjo zgodovino v FLASH...");
        preferences.begin("graph-data", false);
        preferences.putInt("graphIndex", graphHistoryIndex);
        for (int i = 0; i < GRAPH_HISTORY_SIZE; i++) {
          preferences.putFloat(("temp" + String(i)).c_str(), tempHistory48h[i]);
          preferences.putFloat(("hum" + String(i)).c_str(), humHistory48h[i]);
          preferences.putFloat(("lux" + String(i)).c_str(), luxHistory48h[i]);
          preferences.putULong(("time" + String(i)).c_str(), timeStamps48h[i]);
        }
        preferences.end();
      }
    }

    lastGraphUpdate = currentTime;
  }
}

void saveAllSettings(bool isShutdown) {
  Serial.println(isShutdown ? "\n=== SHRANJEVANJE NASTAVITEV OB IZKLOPU ===" : "\n=== SHRANJEVANJE NASTAVITEV ===");

  if (!preferences.begin("system-settings", false)) {
    Serial.println("Napaka pri odpiranju preferences! Poskusim znova...");
    delay(100);

    if (!preferences.begin("system-settings", false)) {
      Serial.println("Napaka pri odpiranju preferences! Shranjevanje preskoceno.");
      return;
    }
  }

  try {
    preferences.putFloat("tempMin", targetTempMin);
    preferences.putFloat("tempMax", targetTempMax);
    preferences.putFloat("humMin", targetHumMin);
    preferences.putFloat("humMax", targetHumMax);
    preferences.putBool("autoControl", autoControlEnabled);

    preferences.putFloat("shadeMinLux", shadeMinLux);
    preferences.putFloat("shadeMaxLux", shadeMaxLux);
    preferences.putBool("shadeAuto", shadeAutoControl);
    preferences.putInt("shadePos", shadeActualPosition);

    preferences.putBool("lightAuto", lightAutoMode);
    preferences.putBool("lightManual", lightManualOverride);
    preferences.putFloat("lightOn", lightOnThreshold);
    preferences.putFloat("lightOff", lightOffThreshold);
    preferences.putBool("lightTime", lightTimeControlEnabled);
    preferences.putInt("lightSH", lightStartHour);
    preferences.putInt("lightSM", lightStartMinute);
    preferences.putInt("lightEH", lightEndHour);
    preferences.putInt("lightEM", lightEndMinute);

    int maxRelaysToSave = (RELAY_COUNT < 4) ? RELAY_COUNT : 4;
    for (int i = 0; i < maxRelaysToSave; i++) {
      preferences.putBool(("relay" + String(i)).c_str(), relayStates[i]);
    }

    int maxBlocksToSave = (MAX_TIME_BLOCKS < 4) ? MAX_TIME_BLOCKS : 4;
    for (int i = 0; i < maxBlocksToSave; i++) {
      String blockKey = "tb" + String(i);
      preferences.putBool((blockKey + "_e").c_str(), timeBlocks[i].enabled);
      preferences.putBool((blockKey + "_on").c_str(), timeBlocks[i].relayOn);
      preferences.putInt((blockKey + "_sh").c_str(), timeBlocks[i].startHour);
      preferences.putInt((blockKey + "_sm").c_str(), timeBlocks[i].startMinute);
      preferences.putInt((blockKey + "_eh").c_str(), timeBlocks[i].endHour);
      preferences.putInt((blockKey + "_em").c_str(), timeBlocks[i].endMinute);

      uint8_t daysBits = 0;
      int maxDaysToSave = (DAYS_IN_WEEK < 7) ? DAYS_IN_WEEK : 7;
      for (int d = 0; d < maxDaysToSave; d++) {
        if (timeBlocks[i].days[d]) {
          daysBits |= (1 << d);
        }
      }
      preferences.putUChar((blockKey + "_d").c_str(), daysBits);
    }

    preferences.putBool("ventAuto", ventilationAutoMode);
    preferences.putFloat("ventDayT", ventilationDayTempThreshold);
    preferences.putFloat("ventDayH", ventilationDayHumThreshold);
    preferences.putFloat("ventNightT", ventilationNightTempThreshold);
    preferences.putFloat("ventNightH", ventilationNightHumThreshold);
    preferences.putInt("ventDayN", dayNightSwitchHour);
    preferences.putInt("ventNightD", nightDaySwitchHour);

    preferences.putInt("soilDry", SOIL_DRY_VALUE);
    preferences.putInt("soilWet", SOIL_WET_VALUE);

    preferences.putULong("lastSave", millis());

    preferences.end();

    Serial.println("=== NASTAVITVE SHRANJENE ===");
    settingsChangedFlag = false;

  } catch (...) {
    Serial.println("Napaka pri shranjevanju nastavitev!");
    preferences.end();
  }
}

void resetToDefaultSettings() {
  Serial.println("RESET na privzete nastavitve!");

  targetTempMin = 18.0;
  targetTempMax = 25.0;
  targetHumMin = 40.0;
  targetHumMax = 60.0;
  autoControlEnabled = true;

  shadeMinLux = 0.0;
  shadeMaxLux = 5000.0;
  shadeAutoControl = true;
  shadeActualPosition = 0;

  lightAutoMode = true;
  lightManualOverride = false;
  lightOnThreshold = 50.0;
  lightOffThreshold = 1000.0;
  lightTimeControlEnabled = false;
  lightStartHour = 18;
  lightStartMinute = 0;
  lightEndHour = 22;
  lightEndMinute = 0;

  lightingAutoMode = true;
  lightingManualOverride = false;

  for (int i = 0; i < RELAY_COUNT; i++) {
    relayStates[i] = false;
  }
  relayControlEnabled = true;

  SOIL_DRY_VALUE = 4095;
  SOIL_WET_VALUE = 1500;

  totalFlow1 = 0.0;
  totalFlow2 = 0.0;
  totalFlow3 = 0.0;

  ventilationAutoMode = true;
  ventilationManualOverride = false;
  ventilationDayTempThreshold = 28.0;
  ventilationDayHumThreshold = 70.0;
  ventilationNightTempThreshold = 22.0;
  ventilationNightHumThreshold = 75.0;
  ventilationDayMinRuntime = 5;
  ventilationNightMinRuntime = 10;
  ventilationDayCooldown = 10;
  ventilationNightCooldown = 20;
  dayNightSwitchHour = 22;
  nightDaySwitchHour = 6;

  ntpSynchronized = false;

  Serial.println("Privzete nastavitve nastavljene!");
}

void loadAllSettings(bool isBoot) {
  Serial.println(isBoot ? "\n=== NALAGANJE NASTAVITEV OB ZAGONU ===" : "\n=== NALAGANJE NASTAVITEV ===");

  if (!preferences.begin("system-settings", true)) {
    Serial.println("Napaka pri odpiranju preferences! Uporabljam privzete vrednosti.");
    resetToDefaultSettings();
    return;
  }

  targetTempMin = preferences.getFloat("tempMin", 18.0);
  targetTempMax = preferences.getFloat("tempMax", 25.0);
  targetHumMin = preferences.getFloat("humMin", 40.0);
  targetHumMax = preferences.getFloat("humMax", 60.0);
  autoControlEnabled = preferences.getBool("autoControl", true);

  shadeMinLux = preferences.getFloat("shadeMinLux", 0.0);
  shadeMaxLux = preferences.getFloat("shadeMaxLux", 5000.0);
  shadeAutoControl = preferences.getBool("shadeAuto", true);
  shadeActualPosition = preferences.getInt("shadePos", 0);

  lightAutoMode = preferences.getBool("lightAuto", true);
  lightManualOverride = preferences.getBool("lightManual", false);
  lightOnThreshold = preferences.getFloat("lightOn", 50.0);
  lightOffThreshold = preferences.getFloat("lightOff", 1000.0);
  lightTimeControlEnabled = preferences.getBool("lightTime", false);
  lightStartHour = preferences.getInt("lightSH", 18);
  lightStartMinute = preferences.getInt("lightSM", 0);
  lightEndHour = preferences.getInt("lightEH", 22);
  lightEndMinute = preferences.getInt("lightEM", 0);

  for (int i = 0; i < min(4, RELAY_COUNT); i++) {
    relayStates[i] = preferences.getBool(("relay" + String(i)).c_str(), false);
  }

  for (int i = 0; i < min(4, MAX_TIME_BLOCKS); i++) {
    String blockKey = "tb" + String(i);
    timeBlocks[i].enabled = preferences.getBool((blockKey + "_e").c_str(), false);
    timeBlocks[i].relayOn = preferences.getBool((blockKey + "_on").c_str(), true);
    timeBlocks[i].startHour = preferences.getInt((blockKey + "_sh").c_str(), 18);
    timeBlocks[i].startMinute = preferences.getInt((blockKey + "_sm").c_str(), 0);
    timeBlocks[i].endHour = preferences.getInt((blockKey + "_eh").c_str(), 22);
    timeBlocks[i].endMinute = preferences.getInt((blockKey + "_em").c_str(), 0);

    uint8_t daysBits = preferences.getUChar((blockKey + "_d").c_str(), 0);
    for (int d = 0; d < min(7, DAYS_IN_WEEK); d++) {
      timeBlocks[i].days[d] = (daysBits & (1 << d)) != 0;
    }

    if (isBoot && !timeBlocks[i].description.startsWith("Blok")) {
      timeBlocks[i].description = "Blok " + String(i + 1);
    }
  }

  ventilationAutoMode = preferences.getBool("ventAuto", true);
  ventilationDayTempThreshold = preferences.getFloat("ventDayT", 28.0);
  ventilationDayHumThreshold = preferences.getFloat("ventDayH", 70.0);
  ventilationNightTempThreshold = preferences.getFloat("ventNightT", 22.0);
  ventilationNightHumThreshold = preferences.getFloat("ventNightH", 75.0);
  dayNightSwitchHour = preferences.getInt("ventDayN", 22);
  nightDaySwitchHour = preferences.getInt("ventNightD", 6);

  SOIL_DRY_VALUE = preferences.getInt("soilDry", 4095);
  SOIL_WET_VALUE = preferences.getInt("soilWet", 1500);

  preferences.end();

  Serial.println("=== NASTAVITVE NALOZENE ===");

  if (isBoot) {
    initializeTimeBlocks();
  }
}

void drawVentilationSymbol(int x, int y, bool isOn, bool isLarge) {
  int size = isLarge ? 24 : 16;

  for (int r = size; r >= 0; r -= 2) {
    uint16_t color;
    if (isOn) {
      uint8_t blue = 200 + (55 * r / size);
      uint8_t green = 150 + (105 * r / size);
      color = rgbTo565(0, green, blue);
    } else {
      uint8_t gray = 80 + (40 * r / size);
      color = rgbTo565(gray, gray, gray);
    }
    tft.drawCircle(x, y, r, color);
  }

  tft.drawCircle(x, y, size, isOn ? rgbTo565(0, 200, 255) : rgbTo565(120, 120, 140));

  int rotation = isOn ? (millis() / 80) % 360 : 0;

  for (int i = 0; i < 3; i++) {
    float angle = i * 120 + rotation;
    float rad = angle * PI / 180.0;

    int x1 = x + (size / 3) * cos(rad);
    int y1 = y + (size / 3) * sin(rad);
    int x2 = x + (size - 3) * cos(rad);
    int y2 = y + (size - 3) * sin(rad);

    uint16_t bladeColor = isOn ? rgbTo565(0, 220, 255) : rgbTo565(150, 150, 170);

    tft.drawLine(x1, y1, x2, y2, bladeColor);
    tft.drawLine(x1 + 1, y1, x2 + 1, y2, bladeColor);
    tft.drawLine(x1, y1 + 1, x2, y2 + 1, bladeColor); 

    tft.fillCircle(x2, y2, 2, bladeColor);
  }

  int centerSize = size / 4;
  tft.fillCircle(x, y, centerSize, isOn ? rgbTo565(0, 180, 240) : rgbTo565(100, 100, 120));
  tft.fillCircle(x - centerSize / 3, y - centerSize / 3, centerSize / 3,
                 isOn ? rgbTo565(100, 220, 255) : rgbTo565(140, 140, 160));
}

void drawElegantVentilationIndicator(int x, int y, bool isOn) {
  int indicatorSize = 32;

  tft.fillRoundRect(x - indicatorSize / 2, y - indicatorSize / 2, indicatorSize, indicatorSize, 6,
                    isOn ? rgbTo565(20, 60, 80) : rgbTo565(40, 40, 40));

  tft.drawRoundRect(x - indicatorSize / 2, y - indicatorSize / 2, indicatorSize, indicatorSize, 6,
                    isOn ? rgbTo565(0, 150, 200) : rgbTo565(80, 80, 80));

  drawVentilationSymbol(x, y, isOn, false);

  tft.setTextSize(1);
  tft.setTextColor(isOn ? rgbTo565(100, 255, 200) : rgbTo565(180, 180, 200));

  String statusText = isOn ? "ON" : "OFF";
  int16_t textX, textY;
  uint16_t textW, textH;
  tft.getTextBounds(statusText, 0, 0, &textX, &textY, &textW, &textH);

  tft.setCursor(x - textW / 2, y + indicatorSize / 2 + 5);
  tft.print(statusText);
}

void updateVentilationControl() {
  if (!ventilationAutoMode || ventilationManualOverride) return;

  static unsigned long lastVentilationCheck = 0;
  static unsigned long ventilationStartTime = 0;
  static bool ventilationRunning = false;

  unsigned long currentTime = millis();

  if (rtcInitialized) {
    DateTime now = rtc.now();
    int currentHour = now.hour();

    bool isNightTime = false;
    if (dayNightSwitchHour < nightDaySwitchHour) {
      isNightTime = (currentHour >= dayNightSwitchHour || currentHour < nightDaySwitchHour);
    } else {
      isNightTime = (currentHour >= dayNightSwitchHour || currentHour < nightDaySwitchHour);
    }

    ventilationDayMode = !isNightTime;
  }

  if (currentTime - lastVentilationCheck > 60000) {
    float currentTempThreshold = ventilationDayMode ? ventilationDayTempThreshold : ventilationNightTempThreshold;
    float currentHumThreshold = ventilationDayMode ? ventilationDayHumThreshold : ventilationNightHumThreshold;
    int currentMinRuntime = ventilationDayMode ? ventilationDayMinRuntime : ventilationNightMinRuntime;

    bool shouldStart = false;

    if (internalTemperature >= currentTempThreshold) {
      shouldStart = true;
    }

    if (internalHumidity >= currentHumThreshold) {
      shouldStart = true;
    }

    if (shouldStart && !ventilationRunning) {
      setRelay(VENTILATION_RELAY, true);
      ventilationRunning = true;
      ventilationStartTime = currentTime;
    }

    if (ventilationRunning) {
      unsigned long runtime = (currentTime - ventilationStartTime) / 60000;

      if (runtime >= currentMinRuntime) {
        setRelay(VENTILATION_RELAY, false);
        ventilationRunning = false;
      }
    }

    lastVentilationCheck = currentTime;
  }
}

void drawDayNightIndicator(int x, int y, bool isDayMode) {
  int size = 20;

  if (isDayMode) {
    tft.fillCircle(x, y, size, rgbTo565(255, 200, 0));

    for (int i = 0; i < 8; i++) {
      float angle = i * 45 * PI / 180;
      int x1 = x + (size)*cos(angle);
      int y1 = y + (size)*sin(angle);
      int x2 = x + (size + 8) * cos(angle);
      int y2 = y + (size + 8) * sin(angle);

      tft.drawLine(x1, y1, x2, y2, rgbTo565(255, 200, 0));
    }

    tft.fillCircle(x - 5, y - 3, 2, ST77XX_BLACK);
    tft.fillCircle(x + 5, y - 3, 2, ST77XX_BLACK);

    for (int i = -3; i <= 3; i++) {
      tft.fillCircle(x + i, y + 4, 1, ST77XX_BLACK);
    }

  } else {
    tft.fillCircle(x, y, size, rgbTo565(200, 220, 255));

    tft.fillCircle(x + 5, y - 5, 4, rgbTo565(180, 200, 240));

    for (int i = 0; i < 4; i++) {
      float angle = i * 90 * PI / 180;
      int starX = x + (size + 12) * cos(angle);
      int starY = y + (size + 12) * sin(angle);

      tft.drawLine(starX - 2, starY, starX + 2, starY, rgbTo565(255, 255, 200));
      tft.drawLine(starX, starY - 2, starX, starY + 2, rgbTo565(255, 255, 200));
    }

    tft.fillCircle(x - 5, y - 3, 2, ST77XX_BLACK);
    tft.fillCircle(x + 5, y - 3, 2, ST77XX_BLACK);

    for (int i = -2; i <= 2; i++) {
      tft.fillCircle(x + i * 2, y + 7, 1, ST77XX_BLACK);
    }
  }

  tft.setTextSize(1);
  tft.setCursor(x - 3, y + size + 5);
  tft.setTextColor(isDayMode ? rgbTo565(255, 150, 0) : rgbTo565(150, 180, 255));
  tft.print(isDayMode ? "DAN" : "NOC");
}

// ========== POENOTENE FUNKCIJE ZA GUMBE ==========

void drawButton(ButtonConfig btn) {
  if (btn.textSize == 0) btn.textSize = 1;
  if (btn.style == BUTTON_DISABLED) btn.isActive = false;
  
  uint16_t finalColor = btn.baseColor;
  uint16_t shadowColor = rgbTo565(30, 30, 50);
  uint16_t borderColor = ST77XX_WHITE;
  uint16_t textColor = ST77XX_WHITE;
  int cornerRadius = 8;
  
  switch (btn.style) {
    case BUTTON_NORMAL:
      cornerRadius = 8;
      break;
    case BUTTON_COMPACT:
      cornerRadius = 5;
      shadowColor = rgbTo565(20, 20, 30);
      break;
    case BUTTON_WIDE:
      cornerRadius = 10;
      break;
    case BUTTON_HIGHLIGHT:
      if (btn.isActive) {
        finalColor = rgbTo565(255, 255, 100);
        textColor = ST77XX_BLACK;
      }
      break;
    case BUTTON_WARNING:
      finalColor = rgbTo565(245, 67, 54);
      break;
    case BUTTON_SUCCESS:
      finalColor = rgbTo565(76, 175, 80);
      break;
    case BUTTON_INFO:
      finalColor = rgbTo565(66, 135, 245);
      break;
    case BUTTON_DISABLED:
      finalColor = rgbTo565(100, 100, 100);
      textColor = rgbTo565(180, 180, 180);
      borderColor = rgbTo565(150, 150, 150);
      break;
  }
  
  if (btn.style != BUTTON_COMPACT) {
    tft.fillRoundRect(btn.x + 2, btn.y + 2, btn.width, btn.height, cornerRadius, shadowColor);
  } else {
    tft.fillRoundRect(btn.x + 1, btn.y + 1, btn.width, btn.height, cornerRadius, shadowColor);
  }
  
  tft.fillRoundRect(btn.x, btn.y, btn.width, btn.height, cornerRadius, finalColor);
  tft.drawRoundRect(btn.x, btn.y, btn.width, btn.height, cornerRadius, borderColor);
  
  if (btn.textSize == 1) {
    tft.setFont();
    tft.setTextSize(1);
  } else if (btn.textSize == 2) {
    tft.setFont(&FreeSansBold12pt7b);
  } else if (btn.textSize == 3) {
    tft.setFont(&FreeSansBold18pt7b);
  }
  
  tft.setTextColor(textColor);
  
  int16_t x1, y1;
  uint16_t w, h;
  tft.getTextBounds(btn.label, 0, 0, &x1, &y1, &w, &h);
  
  int textX = btn.x + (btn.width - w) / 2 - x1;
  int textY = btn.y + (btn.height - h) / 2 - y1;
  
  tft.setCursor(textX, textY);
  tft.print(btn.label);
  
  if (btn.icon != nullptr && strlen(btn.icon) > 0) {
    drawButtonIcon(btn.x, btn.y, btn.width, btn.height, btn.icon, textColor);
  }
  
  tft.setFont();
  tft.setTextSize(1);
}

void drawButtonIcon(int btnX, int btnY, int btnW, int btnH, const char* icon, uint16_t color) {
  int iconX = btnX + 10;
  int iconY = btnY + btnH / 2;
  
  if (strcmp(icon, "home") == 0) {
    tft.fillTriangle(iconX, iconY + 5, iconX + 8, iconY - 8, iconX + 16, iconY + 5, color);
    tft.fillRect(iconX + 4, iconY + 5, 8, 8, color);
  }
  else if (strcmp(icon, "back") == 0) {
    for (int i = 0; i < 5; i++) {
      tft.drawLine(iconX + i * 2, iconY - i, iconX + i * 2, iconY + i, color);
    }
    tft.drawLine(iconX, iconY, iconX + 10, iconY, color);
  }
  else if (strcmp(icon, "wifi") == 0) {
    for (int r = 2; r <= 8; r += 2) {
      for (int a = 180; a < 360; a += 20) {
        int px = iconX + 8 + r * cos(a * PI / 180);
        int py = iconY + r * sin(a * PI / 180);
        tft.drawPixel(px, py, color);
      }
    }
    tft.fillCircle(iconX + 8, iconY + 4, 2, color);
  }
  else if (strcmp(icon, "refresh") == 0) {
    tft.drawCircle(iconX + 8, iconY, 6, color);
    tft.fillTriangle(iconX + 14, iconY - 2, iconX + 16, iconY - 6, iconX + 18, iconY - 2, color);
  }
  else if (strcmp(icon, "save") == 0) {
    tft.drawRect(iconX + 2, iconY - 6, 12, 12, color);
    tft.fillRect(iconX + 6, iconY - 4, 4, 4, color);
  }
  else if (strcmp(icon, "plus") == 0) {
    tft.drawLine(iconX + 8, iconY - 6, iconX + 8, iconY + 6, color);
    tft.drawLine(iconX + 2, iconY, iconX + 14, iconY, color);
  }
  else if (strcmp(icon, "minus") == 0) {
    tft.drawLine(iconX + 2, iconY, iconX + 14, iconY, color);
  }
  else if (strcmp(icon, "up") == 0) {
    tft.fillTriangle(iconX + 8, iconY - 6, iconX + 2, iconY, iconX + 14, iconY, color);
  }
  else if (strcmp(icon, "down") == 0) {
    tft.fillTriangle(iconX + 8, iconY + 6, iconX + 2, iconY, iconX + 14, iconY, color);
  }
  else if (strcmp(icon, "light") == 0) {
    tft.fillCircle(iconX + 8, iconY - 2, 5, color);
    tft.fillRect(iconX + 6, iconY + 2, 4, 4, color);
  }
  else if (strcmp(icon, "fan") == 0) {
    tft.drawCircle(iconX + 8, iconY, 6, color);
    for (int i = 0; i < 3; i++) {
      float angle = i * 120 * PI / 180;
      int x1 = iconX + 8 + 4 * cos(angle);
      int y1 = iconY + 4 * sin(angle);
      int x2 = iconX + 8 + 10 * cos(angle);
      int y2 = iconY + 10 * sin(angle);
      tft.drawLine(x1, y1, x2, y2, color);
    }
  }
  else if (strcmp(icon, "info") == 0) {
    tft.drawCircle(iconX + 8, iconY - 4, 2, color);
    tft.fillRect(iconX + 7, iconY, 2, 6, color);
  }
  else if (strcmp(icon, "warning") == 0) {
    tft.fillTriangle(iconX + 2, iconY + 6, iconX + 8, iconY - 6, iconX + 14, iconY + 6, color);
    tft.fillCircle(iconX + 8, iconY + 2, 2, ST77XX_BLACK);
  }
  else if (strcmp(icon, "check") == 0) {
    tft.drawLine(iconX + 2, iconY, iconX + 6, iconY + 4, color);
    tft.drawLine(iconX + 6, iconY + 4, iconX + 14, iconY - 4, color);
  }
  else if (strcmp(icon, "cross") == 0) {
    tft.drawLine(iconX + 2, iconY - 4, iconX + 14, iconY + 4, color);
    tft.drawLine(iconX + 2, iconY + 4, iconX + 14, iconY - 4, color);
  }
}

void drawNormalButton(int x, int y, int w, int h, uint16_t color, const char* label) {
  ButtonConfig btn = {x, y, w, h, color, label, BUTTON_NORMAL, false, nullptr, 1};
  drawButton(btn);
}

void drawCompactButton(int x, int y, int w, int h, uint16_t color, const char* label, bool highlight) {
  ButtonStyle style = highlight ? BUTTON_HIGHLIGHT : BUTTON_COMPACT;
  ButtonConfig btn = {x, y, w, h, color, label, style, highlight, nullptr, 1};
  drawButton(btn);
}

void drawIconButton(int x, int y, int w, int h, uint16_t color, const char* label, const char* icon) {
  ButtonConfig btn = {x, y, w, h, color, label, BUTTON_NORMAL, false, icon, 1};
  drawButton(btn);
}

void drawMenuButton(int x, int y, int w, int h, uint16_t color, const char* label) {
  ButtonConfig btn = {x, y, w, h, color, label, BUTTON_WIDE, false, nullptr, 1};
  drawButton(btn);
}

void drawHighlightButton(int x, int y, int w, int h, uint16_t color, const char* label, bool active) {
  ButtonConfig btn = {x, y, w, h, color, label, BUTTON_HIGHLIGHT, active, nullptr, 1};
  drawButton(btn);
}

void drawTextButton(int x, int y, int w, int h, uint16_t color, const char* label, int textSize) {
  ButtonConfig btn = {x, y, w, h, color, label, BUTTON_NORMAL, false, nullptr, textSize};
  drawButton(btn);
}

void showVentilationControlScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(2);
  tft.setTextColor(rgbTo565(0, 200, 255));
  tft.setCursor(150, 10);
  tft.println("VENTILACIJA");

  int frameY = 40;
  int frameHeight = 225;
  tft.drawRect(10, frameY, 460, frameHeight, rgbTo565(0, 150, 255));
  tft.fillRect(11, frameY + 1, 458, frameHeight - 1, rgbTo565(20, 40, 70));

  int startY = frameY + 18;
  int lineHeight = 28;

  int row1Y = startY;
  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 200, 0));
  tft.setCursor(15, row1Y + 18);
  tft.print("DAN Temp:");
  tft.setCursor(150, row1Y + 18);
  tft.printf("%.1f C", ventilationDayTempThreshold);

  drawCompactButton(350, row1Y, 40, 22, rgbTo565(255, 200, 0), "-0.5", false);
  drawCompactButton(395, row1Y, 40, 22, rgbTo565(255, 200, 0), "+0.5", false);

  int row2Y = startY + lineHeight;
  tft.setTextColor(rgbTo565(255, 200, 0));
  tft.setCursor(15, row2Y + 18);
  tft.print("DAN Vlaga:");
  tft.setCursor(150, row2Y + 18);
  tft.printf("%.0f %%", ventilationDayHumThreshold);

  drawCompactButton(350, row2Y, 40, 22, rgbTo565(255, 200, 0), "-5", false);
  drawCompactButton(395, row2Y, 40, 22, rgbTo565(255, 200, 0), "+5", false);

  int row3Y = startY + 2 * lineHeight;
  tft.setTextColor(rgbTo565(150, 180, 255));
  tft.setCursor(15, row3Y + 18);
  tft.print("NOC Temp:");
  tft.setCursor(150, row3Y + 18);
  tft.printf("%.1f C", ventilationNightTempThreshold);

  drawCompactButton(350, row3Y, 40, 22, rgbTo565(150, 180, 255), "-0.5", false);
  drawCompactButton(395, row3Y, 40, 22, rgbTo565(150, 180, 255), "+0.5", false);

  int row4Y = startY + 3 * lineHeight;
  tft.setTextColor(rgbTo565(150, 180, 255));
  tft.setCursor(15, row4Y + 18);
  tft.print("NOC Vlaga:");
  tft.setCursor(150, row4Y + 18);
  tft.printf("%.0f %%", ventilationNightHumThreshold);

  drawCompactButton(350, row4Y, 40, 22, rgbTo565(150, 180, 255), "-5", false);
  drawCompactButton(395, row4Y, 40, 22, rgbTo565(150, 180, 255), "+5", false);

  int row5Y = startY + 4 * lineHeight;
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.setCursor(15, row5Y + 18);
  tft.print("Delovanje:");
  tft.setCursor(150, row5Y + 18);
  tft.printf("%d/%d min", ventilationDayMinRuntime, ventilationNightMinRuntime);

  drawCompactButton(350, row5Y, 40, 22, rgbTo565(255, 200, 100), "-1", false);
  drawCompactButton(395, row5Y, 40, 22, rgbTo565(255, 200, 100), "+1", false);

  int row6Y = startY + 5 * lineHeight;
  tft.setTextColor(rgbTo565(255, 150, 100));
  tft.setCursor(15, row6Y + 18);
  tft.print("Pavza:");
  tft.setCursor(150, row6Y + 18);
  tft.printf("%d/%d min", ventilationDayCooldown, ventilationNightCooldown);

  drawCompactButton(350, row6Y, 40, 22, rgbTo565(255, 150, 100), "-1", false);
  drawCompactButton(395, row6Y, 40, 22, rgbTo565(255, 150, 100), "+1", false);

  int statusY = startY + 6 * lineHeight + 28;

  tft.setTextSize(1);

  tft.setCursor(20, statusY);
  tft.setTextColor(rgbTo565(220, 220, 255));
  tft.print("VENT:");
  tft.setCursor(90, statusY);

  bool ventState = relayStates[VENTILATION_RELAY];
  tft.setTextColor(ventState ? rgbTo565(0, 255, 100) : rgbTo565(255, 100, 100));
  tft.print(ventState ? "VKLOP" : "IZKLOP");

  tft.setCursor(180, statusY);
  tft.setTextColor(rgbTo565(220, 220, 255));
  tft.print("NACIN:");
  tft.setCursor(250, statusY);
  tft.setTextColor(ventilationAutoMode ? rgbTo565(100, 200, 255) : rgbTo565(255, 200, 100));
  tft.print(ventilationAutoMode ? "AVTO" : "ROCNO");

  tft.setCursor(330, statusY);
  tft.setTextColor(rgbTo565(220, 220, 255));
  tft.print("REZIM:");
  tft.setCursor(400, statusY);
  tft.setTextColor(ventilationDayMode ? rgbTo565(255, 200, 0) : rgbTo565(150, 180, 255));
  tft.print(ventilationDayMode ? "DAN" : "NOC");

  int buttonY = 280;

  int buttonWidth = 90;
  int buttonHeight = 28;
  int buttonSpacing = 8;
  int totalWidth = 4 * buttonWidth + 3 * buttonSpacing;
  int startX = (tft.width() - totalWidth) / 2;

  drawMenuButton(startX, buttonY, buttonWidth, buttonHeight,
                 relayStates[VENTILATION_RELAY] ? rgbTo565(255, 80, 80) : rgbTo565(80, 220, 80),
                 relayStates[VENTILATION_RELAY] ? "IZKLOP" : "VKLOP");

  drawMenuButton(startX + buttonWidth + buttonSpacing, buttonY, buttonWidth, buttonHeight,
                 ventilationAutoMode ? rgbTo565(100, 200, 255) : rgbTo565(255, 180, 80),
                 ventilationAutoMode ? "AVTO" : "ROCNO");

  drawMenuButton(startX + 2 * (buttonWidth + buttonSpacing), buttonY, buttonWidth, buttonHeight,
                 rgbTo565(76, 175, 80), "SHRANI");

  drawMenuButton(startX + 3 * (buttonWidth + buttonSpacing), buttonY, buttonWidth, buttonHeight,
                 rgbTo565(245, 67, 54), "NAZAJ");

  currentState = STATE_VENTILATION_CONTROL;
}

void handleVentilationControlTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int startY = 58;
  int lineHeight = 28;

  for (int row = 0; row < 6; row++) {
    int rowY = startY + (row * lineHeight);
    if (y > rowY - 5 && y < rowY + 22) {

      if (x > 350 && x < 390) {
        switch (row) {
          case 0:
            ventilationDayTempThreshold -= 0.5;
            if (ventilationDayTempThreshold < 15) ventilationDayTempThreshold = 15;
            break;
          case 1:
            ventilationDayHumThreshold -= 5;
            if (ventilationDayHumThreshold < 30) ventilationDayHumThreshold = 30;
            break;
          case 2:
            ventilationNightTempThreshold -= 0.5;
            if (ventilationNightTempThreshold < 10) ventilationNightTempThreshold = 10;
            break;
          case 3:
            ventilationNightHumThreshold -= 5;
            if (ventilationNightHumThreshold < 30) ventilationNightHumThreshold = 30;
            break;
          case 4:
            ventilationDayMinRuntime = max(1, ventilationDayMinRuntime - 1);
            ventilationNightMinRuntime = max(1, ventilationNightMinRuntime - 1);
            break;
          case 5:
            ventilationDayCooldown = max(1, ventilationDayCooldown - 1);
            ventilationNightCooldown = max(1, ventilationNightCooldown - 1);
            break;
        }
        markSettingsChanged();
        showVentilationControlScreen();
        return;
      }

      if (x > 395 && x < 435) {
        switch (row) {
          case 0:
            ventilationDayTempThreshold += 0.5;
            if (ventilationDayTempThreshold > 40) ventilationDayTempThreshold = 40;
            break;
          case 1:
            ventilationDayHumThreshold += 5;
            if (ventilationDayHumThreshold > 95) ventilationDayHumThreshold = 95;
            break;
          case 2:
            ventilationNightTempThreshold += 0.5;
            if (ventilationNightTempThreshold > 35) ventilationNightTempThreshold = 35;
            break;
          case 3:
            ventilationNightHumThreshold += 5;
            if (ventilationNightHumThreshold > 95) ventilationNightHumThreshold = 95;
            break;
          case 4:
            ventilationDayMinRuntime = min(60, ventilationDayMinRuntime + 1);
            ventilationNightMinRuntime = min(60, ventilationNightMinRuntime + 1);
            break;
          case 5:
            ventilationDayCooldown = min(60, ventilationDayCooldown + 1);
            ventilationNightCooldown = min(60, ventilationNightCooldown + 1);
            break;
        }
        markSettingsChanged();
        showVentilationControlScreen();
        return;
      }
    }
  }

  int buttonY = 280;
  int buttonWidth = 90;
  int buttonSpacing = 8;
  int totalWidth = 4 * buttonWidth + 3 * buttonSpacing;
  int startX = (tft.width() - totalWidth) / 2;

  if (x > startX && x < startX + buttonWidth && y > buttonY && y < buttonY + 28) {
    Serial.println("Gumb VKLOP/IZKLOP pritisnjen");

    bool newState = !relayStates[VENTILATION_RELAY];
    setRelay(VENTILATION_RELAY, newState);

    ventilationManualOverride = true;
    ventilationAutoMode = false;

    markSettingsChanged();
    showVentilationControlScreen();
    return;
  }

  if (x > startX + buttonWidth + buttonSpacing && x < startX + 2 * buttonWidth + buttonSpacing && y > buttonY && y < buttonY + 28) {
    Serial.println("Gumb AVTO/ROCNO pritisnjen");

    ventilationAutoMode = !ventilationAutoMode;

    if (ventilationAutoMode) {
      ventilationManualOverride = false;
    } else {
      ventilationManualOverride = true;
    }

    markSettingsChanged();
    showVentilationControlScreen();
    return;
  }

  if (x > startX + 2 * (buttonWidth + buttonSpacing) && x < startX + 3 * buttonWidth + 2 * buttonSpacing && y > buttonY && y < buttonY + 28) {
    saveAllSettings();
    showVentilationControlScreen();
    return;
  }

  if (x > startX + 3 * (buttonWidth + buttonSpacing) && x < startX + 4 * buttonWidth + 3 * buttonSpacing && y > buttonY && y < buttonY + 28) {
    showMainMenu();
    return;
  }
}

void loadVentilationSettings() {
  preferences.begin("ventilation", true);

  ventilationAutoMode = preferences.getBool("autoMode", true);
  ventilationManualOverride = preferences.getBool("manualOverride", false);

  ventilationDayTempThreshold = preferences.getFloat("dayTempThreshold", 28.0);
  ventilationDayHumThreshold = preferences.getFloat("dayHumThreshold", 70.0);
  ventilationNightTempThreshold = preferences.getFloat("nightTempThreshold", 22.0);
  ventilationNightHumThreshold = preferences.getFloat("nightHumThreshold", 75.0);

  ventilationDayMinRuntime = preferences.getInt("dayMinRuntime", 5);
  ventilationNightMinRuntime = preferences.getInt("nightMinRuntime", 10);
  ventilationDayCooldown = preferences.getInt("dayCooldown", 10);
  ventilationNightCooldown = preferences.getInt("nightCooldown", 20);

  dayNightSwitchHour = preferences.getInt("dayNightSwitchHour", 22);
  nightDaySwitchHour = preferences.getInt("nightDaySwitchHour", 6);

  preferences.end();
}

void checkSettingsIntegrity() {
  Serial.println("\n=== PREVERJANJE INTEGRITETE NASTAVITEV ===");

  if (targetTempMin >= targetTempMax) {
    Serial.println("POPRAVLJAM: targetTempMin >= targetTempMax");
    targetTempMin = 18.0;
    targetTempMax = 25.0;
    markSettingsChanged();
  }

  if (targetHumMin >= targetHumMax) {
    Serial.println("POPRAVLJAM: targetHumMin >= targetHumMax");
    targetHumMin = 40.0;
    targetHumMax = 60.0;
    markSettingsChanged();
  }

  if (lightOnThreshold >= lightOffThreshold) {
    Serial.println("POPRAVLJAM: lightOnThreshold >= lightOffThreshold");
    lightOnThreshold = 50.0;
    lightOffThreshold = 1000.0;
    markSettingsChanged();
  }

  if (shadeMinLux >= shadeMaxLux) {
    Serial.println("POPRAVLJAM: shadeMinLux >= shadeMaxLux");
    shadeMinLux = 0.0;
    shadeMaxLux = 5000.0;
    markSettingsChanged();
  }

  if (ventilationDayTempThreshold < 10 || ventilationDayTempThreshold > 40) {
    Serial.println("POPRAVLJAM: ventilationDayTempThreshold izven obsega");
    ventilationDayTempThreshold = 28.0;
    markSettingsChanged();
  }

  if (settingsChangedFlag) {
    saveAllSettings();
  }

  Serial.println("=== INTEGRITETA NASTAVITEV PREVERJENA ===");
}

void fillArc(int x, int y, int start_angle, int end_angle, int inner_r, int outer_r, uint16_t color) {
  if (start_angle > end_angle) {
    int temp = start_angle;
    start_angle = end_angle;
    end_angle = temp;
  }

  start_angle = constrain(start_angle, 0, 360);
  end_angle = constrain(end_angle, 0, 360);

  if (inner_r >= outer_r) {
    inner_r = outer_r - 2;
  }
  if (inner_r < 0) inner_r = 0;

  for (int a = start_angle; a <= end_angle; a += 3) {
    float rad = a * PI / 180.0;

    for (int r = inner_r; r <= outer_r; r++) {
      int px = x + r * cos(rad);
      int py = y + r * sin(rad);

      if (px >= 0 && px < tft.width() && py >= 0 && py < tft.height()) {
        tft.drawPixel(px, py, color);
      }
    }
  }
}

void initializeTimeBlocks() {
  Serial.println("Inicializacija casovnih blokov za razsvetljavo...");

  for (int i = 0; i < MAX_TIME_BLOCKS; i++) {
    timeBlocks[i].enabled = false;
    timeBlocks[i].relayOn = true;
    timeBlocks[i].startHour = 18;
    timeBlocks[i].startMinute = 0;
    timeBlocks[i].endHour = 22;
    timeBlocks[i].endMinute = 0;
    timeBlocks[i].description = "Blok " + String(i + 1);

    for (int d = 0; d < DAYS_IN_WEEK; d++) {
      timeBlocks[i].days[d] = false;
    }
  }

  timeBlocks[0].enabled = true;
  timeBlocks[0].description = "Vikend vecer";
  timeBlocks[0].days[5] = true;
  timeBlocks[0].days[6] = true;

  timeBlocks[1].enabled = true;
  timeBlocks[1].relayOn = false;
  timeBlocks[1].startHour = 12;
  timeBlocks[1].endHour = 13;
  timeBlocks[1].description = "Izklop opoldne";
  for (int d = 0; d < 5; d++) {
    timeBlocks[1].days[d] = true;
  }
}

void printLightingSettings() {
  Serial.println("\n=== TRENUTNE NASTAVITVE RAZSVETLJAVE ===");
  Serial.printf("lightAutoMode: %s\n", lightAutoMode ? "DA" : "NE");
  Serial.printf("lightManualOverride: %s\n", lightManualOverride ? "DA" : "NE");
  Serial.printf("lightOnThreshold: %.1f lx\n", lightOnThreshold);
  Serial.printf("lightOffThreshold: %.1f lx\n", lightOffThreshold);
  Serial.printf("lightTimeControlEnabled: %s\n", lightTimeControlEnabled ? "DA" : "NE");
  Serial.printf("lightStartHour: %02d:%02d\n", lightStartHour, lightStartMinute);
  Serial.printf("lightEndHour: %02d:%02d\n", lightEndHour, lightEndMinute);

  for (int i = 0; i < MAX_TIME_BLOCKS; i++) {
    if (timeBlocks[i].enabled) {
      Serial.printf("Blok %d: %s, %02d:%02d-%02d:%02d, relayOn: %s\n",
                    i, timeBlocks[i].description.c_str(),
                    timeBlocks[i].startHour, timeBlocks[i].startMinute,
                    timeBlocks[i].endHour, timeBlocks[i].endMinute,
                    timeBlocks[i].relayOn ? "VKLOP" : "IZKLOP");
    }
  }
  Serial.println("=======================================\n");
}

bool isWithinTimeWindow() {
  if (!rtcInitialized || !lightTimeControlEnabled) return true;

  DateTime now = rtc.now();
  int currentHour = now.hour();
  int currentMinute = now.minute();

  int currentTime = currentHour * 60 + currentMinute;
  int startTime = lightStartHour * 60 + lightStartMinute;
  int endTime = lightEndHour * 60 + lightEndMinute;

  if (endTime <= startTime) {
    endTime += 24 * 60;
    if (currentTime < startTime) {
      currentTime += 24 * 60;
    }
  }

  return (currentTime >= startTime && currentTime < endTime);
}

bool isTimeInBlock(int blockIndex) {
    if (blockIndex < 0 || blockIndex >= MAX_TIME_BLOCKS || !timeBlocks[blockIndex].enabled) {
        return false;
    }
    
    if (!rtcInitialized) return false;
    
    DateTime now = rtc.now();
    int currentDay = now.dayOfTheWeek();
    int currentHour = now.hour();
    int currentMinute = now.minute();
    
    if (!timeBlocks[blockIndex].days[currentDay]) {
        return false;
    }
    
    int currentTimeInMinutes = currentHour * 60 + currentMinute;
    int startTimeInMinutes = timeBlocks[blockIndex].startHour * 60 + timeBlocks[blockIndex].startMinute;
    int endTimeInMinutes = timeBlocks[blockIndex].endHour * 60 + timeBlocks[blockIndex].endMinute;
    
    if (endTimeInMinutes <= startTimeInMinutes) {
        endTimeInMinutes += 24 * 60;
        if (currentTimeInMinutes < startTimeInMinutes) {
            currentTimeInMinutes += 24 * 60;
        }
    }
    
    return (currentTimeInMinutes >= startTimeInMinutes && currentTimeInMinutes < endTimeInMinutes);
}

bool shouldRelaysBeOn() {
    if (!lightingAutoMode || lightingManualOverride) {
        return lightingManualOverride ? relayStates[LIGHTING_RELAY_1] : false;
    }
    
    bool overallState = false;
    
    for (int i = 0; i < MAX_TIME_BLOCKS; i++) {
        if (!timeBlocks[i].enabled) continue;
        
        if (isTimeInBlock(i)) {
            if (timeBlocks[i].relayOn) {
                overallState = true;
            } else {
                overallState = false;
                break;
            }
        }
    }
    
    return overallState;
}

void checkAndControlLighting() {
    if (!rtcInitialized) return;
    
    unsigned long currentTime = millis();
    if (currentTime - lastLightingCheck > LIGHTING_CHECK_INTERVAL) {
        
        bool relay6ShouldBeOn = false;
        
        if (!lightAutoMode || lightManualOverride) {
            relay6ShouldBeOn = lightManualOverride ? relayStates[LIGHTING_RELAY_2] : false;
        } else {
            if (isWithinTimeWindow()) {
                if (ldrInternalLux < lightOnThreshold) {
                    relay6ShouldBeOn = true;
                    Serial.printf("💡 Avto razsvetljava: TEMNO (%.0f lx < %.0f) → VKLOP\n", 
                                  ldrInternalLux, lightOnThreshold);
                } else if (ldrInternalLux > lightOffThreshold) {
                    relay6ShouldBeOn = false;
                    Serial.printf("💡 Avto razsvetljava: SVETLO (%.0f lx > %.0f) → IZKLOP\n", 
                                  ldrInternalLux, lightOffThreshold);
                } else {
                    relay6ShouldBeOn = relayStates[LIGHTING_RELAY_2];
                }
            } else {
                relay6ShouldBeOn = false;
                Serial.printf("💡 Avto razsvetljava: ZUNAJ ČASOVNEGA OKNA → IZKLOP\n");
            }
        }
        
        if (relay6ShouldBeOn != relayStates[LIGHTING_RELAY_2]) {
            setRelay(LIGHTING_RELAY_2, relay6ShouldBeOn);
            markSettingsChanged();
            Serial.printf("💡 Rele 5 (avto razsvetljava): %s\n", 
                          relay6ShouldBeOn ? "VKLOPLJEN" : "IZKLOPLJEN");
        }
        
        lastLightingCheck = currentTime;
    }
}

void showLightAutoControlScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 215, 0));
  tft.setCursor(130, 35);
  tft.println("AVTOMATSKA RAZSVETLJAVA");

  tft.drawRoundRect(10, 45, 460, 155, 10, rgbTo565(255, 200, 0));
  tft.fillRoundRect(11, 46, 458, 153, 10, rgbTo565(40, 30, 10));

  int leftColumnX = 30;
  int rightColumnX = 260;
  int yOffset = 58;
  int lineHeight = 14;

  tft.setTextSize(1);

  tft.setCursor(leftColumnX, yOffset);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.println("STATUS RELE 6");

  tft.setCursor(leftColumnX, yOffset + lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Nacin: ");
  tft.setTextColor(lightAutoMode ? rgbTo565(100, 200, 100) : rgbTo565(255, 150, 50));
  tft.println(lightAutoMode ? "AVTO" : "ROCNO");

  tft.setCursor(leftColumnX, yOffset + 2 * lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Stanje: ");
  tft.setTextColor(relayStates[LIGHTING_RELAY_2] ? rgbTo565(100, 200, 100) : rgbTo565(200, 200, 200));
  tft.println(relayStates[LIGHTING_RELAY_2] ? "VKLOP" : "IZKLOP");

  tft.setCursor(leftColumnX, yOffset + 3 * lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Svetloba: ");
  tft.setTextColor(LIGHT_COLOR);
  tft.printf("%.0f lx", ldrInternalLux);

  tft.setCursor(rightColumnX, yOffset);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.println("CASOVNO OBMOCJE");

  tft.setCursor(rightColumnX, yOffset + lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Status: ");
  tft.setTextColor(lightTimeControlEnabled ? rgbTo565(100, 200, 100) : rgbTo565(200, 200, 200));
  tft.println(lightTimeControlEnabled ? "VKLOP" : "IZKLOP");

  if (lightTimeControlEnabled) {
    tft.setCursor(rightColumnX, yOffset + 2 * lineHeight);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.print("Od: ");
    tft.setTextColor(rgbTo565(100, 200, 255));
    tft.printf("%02d:%02d", lightStartHour, lightStartMinute);

    tft.setCursor(rightColumnX, yOffset + 3 * lineHeight);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.print("Do: ");
    tft.setTextColor(rgbTo565(255, 150, 100));
    tft.printf("%02d:%02d", lightEndHour, lightEndMinute);
  }

  drawMenuButton(rightColumnX, yOffset + 4 * lineHeight, 110, 24,
                            rgbTo565(66, 135, 245), "UREDI");

  int pragoviStartY = yOffset + 7 * lineHeight + 8;
  
  tft.drawRoundRect(leftColumnX - 10, pragoviStartY - 8, 440, 75, 8, rgbTo565(255, 200, 100));
  tft.fillRoundRect(leftColumnX - 9, pragoviStartY - 7, 438, 73, 8, rgbTo565(30, 30, 50));
  
  int vklopX = leftColumnX;
  int vklopY = pragoviStartY;
  
  tft.setCursor(vklopX, vklopY);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("VKLOP: ");
  tft.setTextColor(rgbTo565(100, 200, 100));
  tft.printf("%.0f lx", lightOnThreshold);
  
  int btnVklopY = vklopY + 22;
  drawCompactButton(vklopX, btnVklopY, 60, 26, rgbTo565(100, 200, 100), "-100", false);
  drawCompactButton(vklopX + 70, btnVklopY, 60, 26, rgbTo565(100, 200, 100), "+100", false);
  
  int izklopX = rightColumnX;
  int izklopY = pragoviStartY;
  
  tft.setCursor(izklopX, izklopY);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("IZKLOP: ");
  tft.setTextColor(rgbTo565(255, 100, 100));
  tft.printf("%.0f lx", lightOffThreshold);
  
  int btnIzklopY = izklopY + 22;
  drawCompactButton(izklopX, btnIzklopY, 60, 26, rgbTo565(255, 100, 100), "-100", false);
  drawCompactButton(izklopX + 70, btnIzklopY, 60, 26, rgbTo565(255, 100, 100), "+100", false);

  int buttonY = 235;
  int buttonWidth = 90;
  int buttonHeight = 30;
  int buttonSpacing = 10;

  int totalWidth1 = 3 * buttonWidth + 2 * buttonSpacing;
  int startX1 = (tft.width() - totalWidth1) / 2;
  int row1Y = buttonY;
  
  drawMenuButton(startX1, row1Y, buttonWidth, buttonHeight,
                 lightAutoMode ? rgbTo565(100, 200, 100) : rgbTo565(255, 150, 50),
                 "AVTO");

  drawMenuButton(startX1 + buttonWidth + buttonSpacing, row1Y, buttonWidth, buttonHeight,
                 lightTimeControlEnabled ? rgbTo565(100, 200, 100) : rgbTo565(200, 200, 200),
                 "CAS");

  drawMenuButton(startX1 + 2 * (buttonWidth + buttonSpacing), row1Y, buttonWidth, buttonHeight,
                 relayStates[LIGHTING_RELAY_2] ? rgbTo565(255, 100, 100) : rgbTo565(100, 255, 100),
                 relayStates[LIGHTING_RELAY_2] ? "IZKL" : "VKL");

  int row2Y = row1Y + buttonHeight + buttonSpacing;
  int buttonWidth2 = 110;
  int totalWidth2 = 2 * buttonWidth2 + buttonSpacing;
  int startX2 = (tft.width() - totalWidth2) / 2;
  
  drawIconButton(startX2, row2Y, buttonWidth2, buttonHeight,
                 rgbTo565(76, 175, 80), "SHRANI", "save");

  drawMenuButton(startX2 + buttonWidth2 + buttonSpacing, row2Y, buttonWidth2, buttonHeight,
                 rgbTo565(245, 67, 54), "NAZAJ");

  currentState = STATE_LIGHT_AUTO_CONTROL;
}

void handleLightAutoControlTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int leftColumnX = 30;
  int rightColumnX = 260;
  int yOffset = 58;
  int lineHeight = 14;
  int pragoviStartY = yOffset + 7 * lineHeight + 8;
  
  int vklopX = leftColumnX;
  int btnVklopY = pragoviStartY + 22;
  int btnHeight = 26;
  int btnWidth = 60;
  
  if (x > vklopX && x < vklopX + btnWidth && y > btnVklopY && y < btnVklopY + btnHeight) {
    lightOnThreshold -= 100.0;
    if (lightOnThreshold < 0) lightOnThreshold = 0;
    if (lightOnThreshold > lightOffThreshold) lightOnThreshold = lightOffThreshold - 100;
    if (lightOnThreshold < 0) lightOnThreshold = 0;
    markSettingsChanged();
    showLightAutoControlScreen();
    return;
  }
  
  if (x > vklopX + 70 && x < vklopX + 70 + btnWidth && y > btnVklopY && y < btnVklopY + btnHeight) {
    lightOnThreshold += 100.0;
    if (lightOnThreshold > lightOffThreshold) lightOnThreshold = lightOffThreshold;
    markSettingsChanged();
    showLightAutoControlScreen();
    return;
  }
  
  int izklopX = rightColumnX;
  int btnIzklopY = pragoviStartY + 22;
  
  if (x > izklopX && x < izklopX + btnWidth && y > btnIzklopY && y < btnIzklopY + btnHeight) {
    lightOffThreshold -= 100.0;
    if (lightOffThreshold < lightOnThreshold) lightOffThreshold = lightOnThreshold + 100;
    if (lightOffThreshold < 0) lightOffThreshold = 0;
    markSettingsChanged();
    showLightAutoControlScreen();
    return;
  }
  
  if (x > izklopX + 70 && x < izklopX + 70 + btnWidth && y > btnIzklopY && y < btnIzklopY + btnHeight) {
    lightOffThreshold += 100.0;
    if (lightOffThreshold > 20000) lightOffThreshold = 20000;
    markSettingsChanged();
    showLightAutoControlScreen();
    return;
  }

  if (x > rightColumnX && x < rightColumnX + 110 && y > yOffset + 4 * lineHeight && y < yOffset + 4 * lineHeight + 24) {
    showEditLightTimeScreen();
    return;
  }

  int buttonY = 235;
  int buttonWidth = 90;
  int buttonHeight = 30;
  int buttonSpacing = 10;
  
  int totalWidth1 = 3 * buttonWidth + 2 * buttonSpacing;
  int startX1 = (tft.width() - totalWidth1) / 2;
  int row1Y = buttonY;
  
  if (x > startX1 && x < startX1 + buttonWidth && y > row1Y && y < row1Y + buttonHeight) {
    lightAutoMode = !lightAutoMode;
    if (lightAutoMode) {
      lightManualOverride = false;
    }
    markSettingsChanged();
    showLightAutoControlScreen();
    return;
  }

  if (x > startX1 + buttonWidth + buttonSpacing && x < startX1 + 2 * buttonWidth + buttonSpacing && 
      y > row1Y && y < row1Y + buttonHeight) {
    lightTimeControlEnabled = !lightTimeControlEnabled;
    markSettingsChanged();
    showLightAutoControlScreen();
    return;
  }

  if (x > startX1 + 2 * (buttonWidth + buttonSpacing) && x < startX1 + 3 * buttonWidth + 2 * buttonSpacing && 
      y > row1Y && y < row1Y + buttonHeight) {
    lightManualOverride = true;
    lightAutoMode = false;
    toggleRelay(LIGHTING_RELAY_2);
    markSettingsChanged();
    showLightAutoControlScreen();
    return;
  }

  int row2Y = row1Y + buttonHeight + buttonSpacing;
  int buttonWidth2 = 110;
  int totalWidth2 = 2 * buttonWidth2 + buttonSpacing;
  int startX2 = (tft.width() - totalWidth2) / 2;
  
  if (x > startX2 && x < startX2 + buttonWidth2 && y > row2Y && y < row2Y + buttonHeight) {
    saveAllSettings();
    showLightAutoControlScreen();
    return;
  }

  if (x > startX2 + buttonWidth2 + buttonSpacing && x < startX2 + 2 * buttonWidth2 + buttonSpacing && 
      y > row2Y && y < row2Y + buttonHeight) {
    showMainMenu();
    return;
  }
}

void handleEditLightTimeTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  if (x > 50 && x < 110 && y > 115 && y < 145) {
    lightStartHour = (lightStartHour - 1 + 24) % 24;
    markSettingsChanged();
    showEditLightTimeScreen();
    return;
  }
  
  if (x > 120 && x < 180 && y > 115 && y < 145) {
    lightStartHour = (lightStartHour + 1) % 24;
    markSettingsChanged();
    showEditLightTimeScreen();
    return;
  }
  
  if (x > 50 && x < 110 && y > 175 && y < 205) {
    lightStartMinute = (lightStartMinute - 5 + 60) % 60;
    markSettingsChanged();
    showEditLightTimeScreen();
    return;
  }
  
  if (x > 120 && x < 180 && y > 175 && y < 205) {
    lightStartMinute = (lightStartMinute + 5) % 60;
    markSettingsChanged();
    showEditLightTimeScreen();
    return;
  }

  if (x > 270 && x < 330 && y > 115 && y < 145) {
    lightEndHour = (lightEndHour - 1 + 24) % 24;
    markSettingsChanged();
    showEditLightTimeScreen();
    return;
  }
  
  if (x > 340 && x < 400 && y > 115 && y < 145) {
    lightEndHour = (lightEndHour + 1) % 24;
    markSettingsChanged();
    showEditLightTimeScreen();
    return;
  }
  
  if (x > 270 && x < 330 && y > 175 && y < 205) {
    lightEndMinute = (lightEndMinute - 5 + 60) % 60;
    markSettingsChanged();
    showEditLightTimeScreen();
    return;
  }
  
  if (x > 340 && x < 400 && y > 175 && y < 205) {
    lightEndMinute = (lightEndMinute + 5) % 60;
    markSettingsChanged();
    showEditLightTimeScreen();
    return;
  }

  int buttonWidth = 180;
  int buttonHeight = 40;
  int buttonSpacing = 20;
  int totalWidth = 2 * buttonWidth + buttonSpacing;
  int startX = (tft.width() - totalWidth) / 2;
  int buttonY = 260;
  
  if (x > startX && x < startX + buttonWidth && y > buttonY && y < buttonY + buttonHeight) {
    saveAllSettings();
    showLightAutoControlScreen();
    return;
  }
  
  if (x > startX + buttonWidth + buttonSpacing && x < startX + 2 * buttonWidth + buttonSpacing && 
      y > buttonY && y < buttonY + buttonHeight) {
    showLightAutoControlScreen();
    return;
  }
}

void showEditLightTimeScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 215, 0));
  tft.setCursor(110, 46);
  tft.println("NASTAVI CASOVNO OBMOCJE");

  tft.drawRoundRect(30, 60, 200, 170, 8, rgbTo565(100, 200, 255));
  tft.fillRoundRect(31, 61, 198, 168, 8, rgbTo565(40, 30, 10));

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.setCursor(60, 78);
  tft.println("ZACETNI CAS");

  tft.setCursor(50, 100);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Ura: ");
  tft.setTextColor(rgbTo565(100, 200, 255));
  tft.printf("%02d", lightStartHour);

  drawCompactButton(50, 115, 60, 30, rgbTo565(100, 150, 255), "-1", false);
  drawCompactButton(120, 115, 60, 30, rgbTo565(100, 150, 255), "+1", false);

  tft.setCursor(50, 164);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Minuta: ");
  tft.setTextColor(rgbTo565(100, 200, 255));
  tft.printf("%02d", lightStartMinute);

  drawCompactButton(50, 175, 60, 30, rgbTo565(100, 150, 255), "-5", false);
  drawCompactButton(120, 175, 60, 30, rgbTo565(100, 150, 255), "+5", false);

  tft.drawRoundRect(250, 60, 200, 170, 8, rgbTo565(255, 150, 100));
  tft.fillRoundRect(251, 61, 198, 168, 8, rgbTo565(40, 30, 10));

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.setCursor(280, 78);
  tft.println("KONCNI CAS");

  tft.setCursor(270, 100);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Ura: ");
  tft.setTextColor(rgbTo565(255, 150, 100));
  tft.printf("%02d", lightEndHour);

  drawCompactButton(270, 115, 60, 30, rgbTo565(255, 150, 100), "-1", false);
  drawCompactButton(340, 115, 60, 30, rgbTo565(255, 150, 100), "+1", false);

  tft.setCursor(270, 164);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Minuta: ");
  tft.setTextColor(rgbTo565(255, 150, 100));
  tft.printf("%02d", lightEndMinute);

  drawCompactButton(270, 175, 60, 30, rgbTo565(255, 150, 100), "-5", false);
  drawCompactButton(340, 175, 60, 30, rgbTo565(255, 150, 100), "+5", false);

  int buttonWidth = 180;
  int buttonHeight = 40;
  int buttonSpacing = 20;
  int totalWidth = 2 * buttonWidth + buttonSpacing;
  int startX = (tft.width() - totalWidth) / 2;
  int buttonY = 260;

  drawMenuButton(startX, buttonY, buttonWidth, buttonHeight, 
                 rgbTo565(76, 175, 80), "SHRANI");
  
  drawMenuButton(startX + buttonWidth + buttonSpacing, buttonY, buttonWidth, buttonHeight, 
                 rgbTo565(245, 67, 54), "NAZAJ");

  currentState = STATE_EDIT_LIGHT_TIME;
}

void showLightingControlScreen() {
    tft.fillScreen(ST77XX_BLACK);
    drawGradientBackground();
    drawStatusBar();
    
    tft.setTextSize(1);
    tft.setTextColor(rgbTo565(255, 215, 0));
    tft.setCursor(110, 28);
    tft.println("CASOVNA RAZSVETLJAVA (RELE 4)");
    
    int blockStartY = 48;
    int blockWidth = 400;
    int blockHeight = 28;
    int blockSpacing = 6;
    
    int infoY = blockStartY + 4 * (blockHeight + blockSpacing) + 3;
    int infoHeight = 45;
    int okvirHeight = (4 * blockHeight + 3 * blockSpacing) + infoHeight + 15;
    
    tft.drawRoundRect(20, 40, 440, okvirHeight, 10, rgbTo565(255, 200, 0));
    tft.fillRoundRect(21, 41, 438, okvirHeight - 1, 10, rgbTo565(40, 30, 20));
    
    tft.setTextSize(1);
    
    for (int i = 0; i < 4; i++) {
        int y = blockStartY + i * (blockHeight + blockSpacing);
        
        uint16_t blockColor;
        if (!timeBlocks[i].enabled) {
            blockColor = rgbTo565(80, 80, 80);
        } else if (isTimeInBlock(i)) {
            blockColor = timeBlocks[i].relayOn ? rgbTo565(100, 200, 100) : rgbTo565(255, 100, 100);
        } else {
            blockColor = timeBlocks[i].relayOn ? rgbTo565(100, 150, 200) : rgbTo565(200, 150, 100);
        }
        
        tft.fillRoundRect(40, y, blockWidth, blockHeight, 5, blockColor);
        tft.drawRoundRect(40, y, blockWidth, blockHeight, 5, ST77XX_WHITE);
        
        String blockLabel = timeBlocks[i].description;
        if (blockLabel.length() > 10) {
            blockLabel = blockLabel.substring(0, 8) + "..";
        }
        
        int16_t labelX1, labelY1;
        uint16_t labelW, labelH;
        tft.getTextBounds(blockLabel, 0, 0, &labelX1, &labelY1, &labelW, &labelH);
        
        int labelX = 48;
        int labelY = y + (blockHeight - labelH) / 2 - labelY1;
        
        tft.setCursor(labelX, labelY);
        tft.setTextColor(timeBlocks[i].enabled ? ST77XX_BLACK : rgbTo565(200, 200, 200));
        tft.print(blockLabel);
        
        String timeStr = String(timeBlocks[i].startHour < 10 ? "0" : "") + String(timeBlocks[i].startHour) + ":" + 
                         String(timeBlocks[i].startMinute < 10 ? "0" : "") + String(timeBlocks[i].startMinute) + "-" +
                         String(timeBlocks[i].endHour < 10 ? "0" : "") + String(timeBlocks[i].endHour) + ":" + 
                         String(timeBlocks[i].endMinute < 10 ? "0" : "") + String(timeBlocks[i].endMinute);
        
        int16_t timeX1, timeY1;
        uint16_t timeW, timeH;
        tft.getTextBounds(timeStr, 0, 0, &timeX1, &timeY1, &timeW, &timeH);
        int timeX = 115;
        int timeY = y + (blockHeight - timeH) / 2 - timeY1;
        
        tft.setCursor(timeX, timeY);
        tft.setTextColor(timeBlocks[i].enabled ? ST77XX_BLACK : rgbTo565(200, 200, 200));
        tft.print(timeStr);
        
        String actionStr = timeBlocks[i].relayOn ? "ON" : "OFF";
        int16_t actionX1, actionY1;
        uint16_t actionW, actionH;
        tft.getTextBounds(actionStr, 0, 0, &actionX1, &actionY1, &actionW, &actionH);
        int actionX = 280;
        int actionY = y + (blockHeight - actionH) / 2 - actionY1;
        
        tft.setCursor(actionX, actionY);
        tft.setTextColor(timeBlocks[i].enabled ? ST77XX_BLACK : rgbTo565(200, 200, 200));
        tft.print(actionStr);
        
        if (timeBlocks[i].enabled && isTimeInBlock(i)) {
            String activeStr = "AKTIVNO";
            int16_t activeX1, activeY1;
            uint16_t activeW, activeH;
            tft.getTextBounds(activeStr, 0, 0, &activeX1, &activeY1, &activeW, &activeH);
            int activeX = 365;
            int activeY = y + (blockHeight - activeH) / 2 - activeY1;
            
            tft.setCursor(activeX, activeY);
            tft.setTextColor(ST77XX_BLACK);
            tft.print(activeStr);
        }
    }
    
    tft.setTextSize(1);
    
    tft.setCursor(40, infoY);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("Nacin: ");
    tft.setTextColor(lightingAutoMode ? rgbTo565(100, 200, 100) : rgbTo565(255, 200, 50));
    tft.println(lightingAutoMode ? "AVTOMATSKI" : "ROCNI");
    
    tft.setCursor(40, infoY + 14);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("Stanje releja 4: ");
    tft.setTextColor(relayStates[LIGHTING_RELAY_1] ? rgbTo565(100, 255, 100) : rgbTo565(200, 200, 200));
    tft.println(relayStates[LIGHTING_RELAY_1] ? "VKLOPLJEN" : "IZKLOPLJEN");
    
    tft.setCursor(40, infoY + 28);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("Naslednji: ");
    tft.setTextColor(rgbTo565(255, 255, 150));
    
    String nextEvent = getNextLightingEvent();
    if (nextEvent.length() > 25) {
        nextEvent = nextEvent.substring(0, 22) + "...";
    }
    tft.println(nextEvent);
    
    int buttonY = 40 + okvirHeight + 25;
    int buttonWidth = 95;
    int buttonHeight = 32;
    int buttonSpacing = 8;
    
    int buttonCount = 4;
    int totalButtonsWidth = buttonCount * buttonWidth + (buttonCount - 1) * buttonSpacing;
    int startX = (tft.width() - totalButtonsWidth) / 2;
    
    drawNormalButton(startX, buttonY, buttonWidth, buttonHeight,
                     lightingAutoMode ? rgbTo565(100, 200, 100) : rgbTo565(255, 150, 50),
                     lightingAutoMode ? "AVTO" : "ROCNO");
    
    drawNormalButton(startX + buttonWidth + buttonSpacing, buttonY, buttonWidth, buttonHeight,
                     rgbTo565(255, 215, 0), "AVTO REL6");
    
    drawNormalButton(startX + 2 * (buttonWidth + buttonSpacing), buttonY, buttonWidth, buttonHeight,
                     rgbTo565(76, 175, 80), "SHRANI");
    
    drawNormalButton(startX + 3 * (buttonWidth + buttonSpacing), buttonY, buttonWidth, buttonHeight,
                     rgbTo565(245, 67, 54), "NAZAJ");
    
    currentState = STATE_LIGHTING_CONTROL;
}

void showEditLightingBlockScreen(int blockIndex) {
  selectedLightBlock = blockIndex;

  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  TimeBlock* block = &timeBlocks[blockIndex];

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 215, 0));
  tft.setCursor(150, 35);
  tft.printf("UREDI BLOK %d", blockIndex + 1);

  int frameY = 50;
  int frameHeight = 180;
  tft.drawRoundRect(20, frameY, 440, frameHeight, 10, rgbTo565(255, 200, 0));
  tft.fillRoundRect(21, frameY + 1, 438, frameHeight - 1, 10, rgbTo565(40, 30, 20));

  int leftColX = 30;
  int rightColX = 260;
  int yStart = frameY + 15;
  int lineSpacing = 28;

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.setCursor(leftColX, yStart);
  tft.println("CASOVNO OBMOCJE");

  tft.setCursor(leftColX, yStart + 18);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Od: ");
  tft.setTextColor(rgbTo565(100, 200, 255));
  tft.printf("%02d:%02d", block->startHour, block->startMinute);

  int smallBtnW = 45;
  int smallBtnH = 22;
  int btnY = yStart + 26;

  drawCompactButton(leftColX, btnY, smallBtnW, smallBtnH, rgbTo565(100, 150, 255), "-1H", false);
  drawCompactButton(leftColX + 50, btnY, smallBtnW, smallBtnH, rgbTo565(100, 150, 255), "+1H", false);

  drawCompactButton(leftColX + 100, btnY, smallBtnW, smallBtnH, rgbTo565(100, 150, 255), "-5M", false);
  drawCompactButton(leftColX + 150, btnY, smallBtnW, smallBtnH, rgbTo565(100, 150, 255), "+5M", false);

  tft.setCursor(leftColX, yStart + 78);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Do: ");
  tft.setTextColor(rgbTo565(255, 150, 100));
  tft.printf("%02d:%02d", block->endHour, block->endMinute);

  btnY = yStart + 90;
  drawCompactButton(leftColX, btnY, smallBtnW, smallBtnH, rgbTo565(255, 150, 100), "-1H", false);
  drawCompactButton(leftColX + 50, btnY, smallBtnW, smallBtnH, rgbTo565(255, 150, 100), "+1H", false);
  drawCompactButton(leftColX + 100, btnY, smallBtnW, smallBtnH, rgbTo565(255, 150, 100), "-5M", false);
  drawCompactButton(leftColX + 150, btnY, smallBtnW, smallBtnH, rgbTo565(255, 150, 100), "+5M", false);

  tft.setCursor(rightColX, yStart);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.println("NASTAVITVE");

  tft.setCursor(rightColX, yStart + 15);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Aktiven: ");

  drawCompactButton(rightColX + 70, yStart + 12, 60, 22,
                    block->enabled ? rgbTo565(100, 255, 100) : rgbTo565(200, 200, 200),
                    block->enabled ? "DA" : "NE", false);

  tft.setCursor(rightColX, yStart + 40);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Akcija: ");

  drawCompactButton(rightColX + 70, yStart + 37, 60, 22,
                    block->relayOn ? rgbTo565(100, 200, 100) : rgbTo565(200, 100, 100),
                    block->relayOn ? "VKLOP" : "IZKLOP", false);

  tft.setCursor(rightColX, yStart + 65);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.println("Dnevi:");

  const char* dayLetters[7] = { "P", "T", "S", "C", "P", "S", "N" };
  int dayBtnY = yStart + 80;

  for (int d = 0; d < 7; d++) {
    int x = rightColX + d * 25;

    drawCompactButton(x, dayBtnY, 22, 22,
                      block->days[d] ? rgbTo565(100, 200, 100) : rgbTo565(80, 80, 80),
                      dayLetters[d], block->days[d]);
  }

  int quickBtnY = yStart + 105;
  drawCompactButton(rightColX, quickBtnY, 45, 22, rgbTo565(100, 150, 255), "VSI", false);
  drawCompactButton(rightColX + 50, quickBtnY, 45, 22, rgbTo565(255, 150, 150), "NIC", false);
  drawCompactButton(rightColX + 100, quickBtnY, 45, 22, rgbTo565(255, 200, 100), "VIK", false);

  int descY = yStart + 150;

  String desc = block->description;
  if (desc.length() > 20) {
    desc = desc.substring(0, 17) + "...";
  }

  tft.setCursor(leftColX, descY);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Opis: ");
  tft.setTextColor(rgbTo565(255, 255, 200));
  tft.println(desc);

  int bottomBtnY = frameY + frameHeight + 10;
  int bottomBtnW = 140;
  int bottomBtnH = 32;
  int bottomBtnSpacing = 10;
  int columnSpacing = 40;

  int totalWidth = 2 * bottomBtnW + columnSpacing;
  int leftColumnX = (tft.width() - totalWidth) / 2;
  int rightColumnX = leftColumnX + bottomBtnW + columnSpacing;

  int btnRow1Y = bottomBtnY;

  if (editTimeMode) {
    drawNormalButton(leftColumnX, btnRow1Y, bottomBtnW, bottomBtnH, rgbTo565(255, 255, 100), "✓ CAS");
  } else {
    drawNormalButton(leftColumnX, btnRow1Y, bottomBtnW, bottomBtnH, rgbTo565(66, 135, 245), "UREDI CAS");
  }

  int btnRow2Y = btnRow1Y + bottomBtnH + bottomBtnSpacing;
  if (editDaysMode) {
    drawNormalButton(leftColumnX, btnRow2Y, bottomBtnW, bottomBtnH, rgbTo565(255, 255, 100), "✓ DNEVI");
  } else {
    drawNormalButton(leftColumnX, btnRow2Y, bottomBtnW, bottomBtnH, rgbTo565(66, 135, 245), "UREDI DNEVE");
  }

  drawNormalButton(rightColumnX, btnRow1Y, bottomBtnW, bottomBtnH, rgbTo565(76, 175, 80), "SHRANI");

  drawNormalButton(rightColumnX, btnRow2Y, bottomBtnW, bottomBtnH, rgbTo565(245, 67, 54), "NAZAJ");

  currentState = STATE_EDIT_LIGHTING_BLOCK;
}

String getNextLightingEvent() {
    if (!rtcInitialized) return "Ni podatkov";
    
    DateTime now = rtc.now();
    int currentMinute = now.hour() * 60 + now.minute();
    int currentDay = now.dayOfTheWeek();
    
    int nextEventTime = 24 * 60;
    String eventType = "brez";
    int eventBlock = -1;
    
    for (int i = 0; i < MAX_TIME_BLOCKS; i++) {
        if (!timeBlocks[i].enabled) continue;
        
        for (int d = 0; d < DAYS_IN_WEEK; d++) {
            if (!timeBlocks[i].days[d]) continue;
            
            int startMinute = timeBlocks[i].startHour * 60 + timeBlocks[i].startMinute;
            int endMinute = timeBlocks[i].endHour * 60 + timeBlocks[i].endMinute;
            
            if (d == currentDay && startMinute > currentMinute && startMinute < nextEventTime) {
                nextEventTime = startMinute;
                eventType = timeBlocks[i].relayOn ? "VKLOP" : "IZKLOP";
                eventBlock = i;
            }
            
            if (d == (currentDay + 1) % 7 && startMinute < nextEventTime) {
                nextEventTime = startMinute;
                eventType = timeBlocks[i].relayOn ? "VKLOP" : "IZKLOP";
                eventBlock = i;
            }
        }
    }
    
    if (nextEventTime == 24 * 60) {
        return "Ni nacrtovanih";
    }
    
    int hours = nextEventTime / 60;
    int minutes = nextEventTime % 60;
    
    String blockInfo = "";
    if (eventBlock >= 0 && eventBlock < MAX_TIME_BLOCKS) {
        blockInfo = " (" + timeBlocks[eventBlock].description + ")";
    }
    
    return String(eventType) + " ob " + String(hours < 10 ? "0" : "") + String(hours) + ":" + 
           String(minutes < 10 ? "0" : "") + String(minutes) + blockInfo;
}

void drawRelayStatusIndicator(int x, int y, bool isOn) {
  int indicatorSize = 12;

  if (isOn) {
    tft.fillCircle(x, y, indicatorSize, rgbTo565(100, 200, 100));
    tft.fillCircle(x, y, indicatorSize - 4, rgbTo565(50, 150, 50));
    tft.drawCircle(x, y, indicatorSize, ST77XX_WHITE);
  } else {
    tft.fillCircle(x, y, indicatorSize, rgbTo565(100, 100, 100));
    tft.fillCircle(x, y, indicatorSize - 4, rgbTo565(40, 40, 40));
    tft.drawCircle(x, y, indicatorSize, rgbTo565(150, 150, 150));
  }
}

void handleLightingControlTouch(int x, int y) {
    if (y < STATUS_BAR_HEIGHT) {
        showWiFiQuickInfo();
        return;
    }

    int blockStartY = 48;
    int blockWidth = 400;
    int blockHeight = 28;
    int blockSpacing = 6;

    for (int i = 0; i < 4; i++) {
        int blockY = blockStartY + i * (blockHeight + blockSpacing);

        if (x > 40 && x < 40 + blockWidth && y > blockY && y < blockY + blockHeight) {
            showEditLightingBlockScreen(i);
            return;
        }
    }

    int infoY = blockStartY + 4 * (blockHeight + blockSpacing) + 3;
    int okvirHeight = (4 * blockHeight + 3 * blockSpacing) + 45 + 15;
    
    int buttonY = 40 + okvirHeight + 25;
    int buttonWidth = 95;
    int buttonHeight = 32;
    int buttonSpacing = 8;
    
    int buttonCount = 4;
    int totalButtonsWidth = buttonCount * buttonWidth + (buttonCount - 1) * buttonSpacing;
    int startX = (tft.width() - totalButtonsWidth) / 2;
    
    if (x > startX && x < startX + buttonWidth && 
        y > buttonY && y < buttonY + buttonHeight) {
        lightingAutoMode = !lightingAutoMode;
        if (lightingAutoMode) {
            lightingManualOverride = false;
        }
        markSettingsChanged();
        showLightingControlScreen();
        return;
    }
    
    if (x > startX + buttonWidth + buttonSpacing && 
        x < startX + 2 * buttonWidth + buttonSpacing && 
        y > buttonY && y < buttonY + buttonHeight) {
        showLightAutoControlScreen();
        return;
    }
    
    if (x > startX + 2 * (buttonWidth + buttonSpacing) && 
        x < startX + 3 * buttonWidth + 2 * buttonSpacing && 
        y > buttonY && y < buttonY + buttonHeight) {
        saveAllSettings();
        showLightingControlScreen();
        return;
    }
    
    if (x > startX + 3 * (buttonWidth + buttonSpacing) && 
        x < startX + 4 * buttonWidth + 3 * buttonSpacing && 
        y > buttonY && y < buttonY + buttonHeight) {
        showMainMenu();
        return;
    }
}

void handleEditLightingBlockTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  if (selectedLightBlock < 0 || selectedLightBlock >= MAX_TIME_BLOCKS) return;

  TimeBlock* block = &timeBlocks[selectedLightBlock];

  int frameY = 50;
  int leftColX = 30;
  int rightColX = 260;
  int yStart = frameY + 15;
  int smallBtnW = 45;
  int smallBtnH = 22;
  int bottomBtnY = frameY + 180 + 10;
  int bottomBtnW = 140;
  int bottomBtnH = 32;
  int bottomBtnSpacing = 10;
  int columnSpacing = 40;
  int totalWidth = 2 * bottomBtnW + columnSpacing;
  int leftColumnX = (tft.width() - totalWidth) / 2;
  int rightColumnX = leftColumnX + bottomBtnW + columnSpacing;

  if (x > leftColX && x < leftColX + smallBtnW && y > yStart + 30 && y < yStart + 30 + smallBtnH) {
    block->startHour = (block->startHour - 1 + 24) % 24;
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > leftColX + 50 && x < leftColX + 50 + smallBtnW && y > yStart + 30 && y < yStart + 30 + smallBtnH) {
    block->startHour = (block->startHour + 1) % 24;
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > leftColX + 100 && x < leftColX + 100 + smallBtnW && y > yStart + 30 && y < yStart + 30 + smallBtnH) {
    block->startMinute = (block->startMinute - 5 + 60) % 60;
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > leftColX + 150 && x < leftColX + 150 + smallBtnW && y > yStart + 30 && y < yStart + 30 + smallBtnH) {
    block->startMinute = (block->startMinute + 5) % 60;
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > leftColX && x < leftColX + smallBtnW && y > yStart + 90 && y < yStart + 90 + smallBtnH) {
    block->endHour = (block->endHour - 1 + 24) % 24;
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > leftColX + 50 && x < leftColX + 50 + smallBtnW && y > yStart + 90 && y < yStart + 90 + smallBtnH) {
    block->endHour = (block->endHour + 1) % 24;
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > leftColX + 100 && x < leftColX + 100 + smallBtnW && y > yStart + 90 && y < yStart + 90 + smallBtnH) {
    block->endMinute = (block->endMinute - 5 + 60) % 60;
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > leftColX + 150 && x < leftColX + 150 + smallBtnW && y > yStart + 90 && y < yStart + 90 + smallBtnH) {
    block->endMinute = (block->endMinute + 5) % 60;
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > rightColX + 70 && x < rightColX + 130 && y > yStart + 12 && y < yStart + 12 + 22) {
    block->enabled = !block->enabled;
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > rightColX + 70 && x < rightColX + 130 && y > yStart + 37 && y < yStart + 37 + 22) {
    block->relayOn = !block->relayOn;
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  for (int d = 0; d < 7; d++) {
    int dayX = rightColX + d * 25;
    if (x > dayX && x < dayX + 22 && y > yStart + 80 && y < yStart + 80 + 22) {
      block->days[d] = !block->days[d];
      markSettingsChanged();
      showEditLightingBlockScreen(selectedLightBlock);
      return;
    }
  }

  if (x > rightColX && x < rightColX + 45 && y > yStart + 105 && y < yStart + 105 + 22) {
    for (int d = 0; d < 7; d++) block->days[d] = true;
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > rightColX + 50 && x < rightColX + 95 && y > yStart + 105 && y < yStart + 105 + 22) {
    for (int d = 0; d < 7; d++) block->days[d] = false;
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > rightColX + 100 && x < rightColX + 145 && y > yStart + 105 && y < yStart + 105 + 22) {
    for (int d = 0; d < 7; d++) {
      block->days[d] = (d == 5 || d == 6);
    }
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  int btnRow1Y = bottomBtnY;
  int btnRow2Y = btnRow1Y + bottomBtnH + bottomBtnSpacing;

  if (x > leftColumnX && x < leftColumnX + bottomBtnW && y > btnRow1Y && y < btnRow1Y + bottomBtnH) {
    editTimeMode = !editTimeMode;
    if (editTimeMode) {
      editDaysMode = false;
    }
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > leftColumnX && x < leftColumnX + bottomBtnW && y > btnRow2Y && y < btnRow2Y + bottomBtnH) {
    editDaysMode = !editDaysMode;
    if (editDaysMode) {
      editTimeMode = false;
    }
    markSettingsChanged();
    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > rightColumnX && x < rightColumnX + bottomBtnW && y > btnRow1Y && y < btnRow1Y + bottomBtnH) {
    saveAllSettings();

    showTemporaryMessage("Nastavitve shranjene!\nV flash pomnilniku", rgbTo565(80, 220, 100), 1500);

    showEditLightingBlockScreen(selectedLightBlock);
    return;
  }

  if (x > rightColumnX && x < rightColumnX + bottomBtnW && y > btnRow2Y && y < btnRow2Y + bottomBtnH) {
    showLightingControlScreen();
    return;
  }
}

void showShadeControlScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(2);
  tft.setTextColor(rgbTo565(0, 150, 255));
  tft.setCursor(150, 30);
  tft.println("NASTAVITVE SENCENJA");

  tft.drawRoundRect(20, 55, 440, 220, 10, rgbTo565(0, 150, 255));
  tft.fillRoundRect(21, 56, 438, 218, 10, rgbTo565(20, 40, 70));

  int leftColumnX = 40;
  int rightColumnX = 260;
  int yOffset = 75;
  int lineHeight = 20;

  tft.setTextSize(1);

  tft.setCursor(leftColumnX, yOffset - 12);
  tft.setTextColor(rgbTo565(220, 220, 255));
  tft.print("Modul 3: ");
  tft.setTextColor(module3Active ? rgbTo565(80, 220, 100) : rgbTo565(255, 80, 80));
  tft.println(module3Active ? "AKTIVEN" : "NEDOSEGLJIV");

  tft.setCursor(leftColumnX, yOffset);
  tft.setTextColor(LIGHT_COLOR);
  tft.println("NOTRANJA SVETLOBA");

  tft.setCursor(leftColumnX, yOffset + lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Trenutna: ");
  tft.setTextColor(LIGHT_COLOR);

  if (ldrInternalLux < 10) {
    tft.printf("%.1f lx", ldrInternalLux);
  } else if (ldrInternalLux < 1000) {
    tft.printf("%.0f lx", ldrInternalLux);
  } else {
    tft.printf("%.1f klx", ldrInternalLux / 1000.0);
  }

  tft.setCursor(leftColumnX, yOffset + 2 * lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Min: ");
  tft.setTextColor(rgbTo565(100, 100, 255));
  tft.printf("%.0f lx", shadeMinLux);
  
  drawCompactButton(leftColumnX, yOffset + 2 * lineHeight + 12, 45, 22, 
                    rgbTo565(100, 100, 255), "-100", false);
  drawCompactButton(leftColumnX + 55, yOffset + 2 * lineHeight + 12, 45, 22, 
                    rgbTo565(100, 100, 255), "+100", false);

  tft.setCursor(leftColumnX, yOffset + 4 * lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Max: ");
  tft.setTextColor(rgbTo565(255, 200, 50));
  tft.printf("%.0f lx", shadeMaxLux);
  
  drawCompactButton(leftColumnX, yOffset + 4 * lineHeight + 12, 45, 22, 
                    rgbTo565(255, 200, 50), "-100", false);
  drawCompactButton(leftColumnX + 55, yOffset + 4 * lineHeight + 12, 45, 22, 
                    rgbTo565(255, 200, 50), "+100", false);

  tft.setCursor(rightColumnX, yOffset);
  tft.setTextColor(rgbTo565(0, 150, 255));
  tft.println("POZICIJA");

  tft.setCursor(rightColumnX, yOffset + lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Trenutna: ");
  
  if (module3Active) {
    tft.setTextColor(rgbTo565(0, 150, 255));
    tft.printf("%d %%", shadeCurrentPosition);
  } else {
    tft.setTextColor(rgbTo565(150, 150, 150));
    tft.print("-- %");
  }

  tft.setCursor(rightColumnX, yOffset + 2 * lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Cilj: ");
  
  if (module3Active) {
    tft.setTextColor(rgbTo565(255, 150, 50));
    tft.printf("%d %%", shadeTargetPosition);
  } else {
    tft.setTextColor(rgbTo565(150, 150, 150));
    tft.print("-- %");
  }

  tft.setCursor(rightColumnX, yOffset + 3 * lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Kalibriran: ");
  
  if (module3Active) {
    tft.setTextColor(shadeIsCalibrated ? rgbTo565(80, 220, 100) : rgbTo565(255, 80, 80));
    tft.println(shadeIsCalibrated ? "DA" : "NE");
  } else {
    tft.setTextColor(rgbTo565(150, 150, 150));
    tft.println("?");
  }

  tft.setCursor(rightColumnX, yOffset + 4 * lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Status: ");
  
  if (module3Active) {
    if (shadeIsMoving) {
      tft.setTextColor(rgbTo565(255, 200, 50));
      tft.print("PREMIK");
      if (shadeTargetPosition > shadeCurrentPosition) {
        tft.print(" ↑");
      } else if (shadeTargetPosition < shadeCurrentPosition) {
        tft.print(" ↓");
      }
    } else {
      tft.setTextColor(rgbTo565(200, 200, 200));
      tft.print("MIROVANJE");
    }
  } else {
    tft.setTextColor(rgbTo565(150, 150, 150));
    tft.print("?");
  }

  int barY = yOffset + 6 * lineHeight;
  int barWidth = 200;
  int barHeight = 22;

  tft.setCursor(leftColumnX, barY - 15);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.println("Pozicija sencnika:");

  tft.fillRoundRect(leftColumnX, barY, barWidth, barHeight, 6, rgbTo565(60, 60, 60));

  if (module3Active) {
    int progressWidth = map(constrain(shadeCurrentPosition, 0, 100), 0, 100, 0, barWidth);
    if (progressWidth > 0) {
      tft.fillRoundRect(leftColumnX, barY, progressWidth, barHeight, 6, rgbTo565(0, 150, 255));
    }
  }

  tft.drawRoundRect(leftColumnX, barY, barWidth, barHeight, 6, ST77XX_WHITE);

  tft.setTextSize(1);
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(leftColumnX + barWidth / 2 - 15, barY + 5);
  
  if (module3Active) {
    tft.printf("%d%%", shadeCurrentPosition);
  } else {
    tft.print("--%");
  }

  int buttonStartY = barY + barHeight + 12;
  int buttonWidth = 85;
  int buttonHeight = 28;
  int buttonSpacing = 6;
  
  int totalWidth1 = 5 * buttonWidth + 4 * buttonSpacing;
  int startX1 = (tft.width() - totalWidth1) / 2;
  
  drawCompactButton(startX1, buttonStartY, buttonWidth, buttonHeight,
                    rgbTo565(100, 150, 255), "0%", false);
  drawCompactButton(startX1 + buttonWidth + buttonSpacing, buttonStartY, buttonWidth, buttonHeight,
                    rgbTo565(100, 150, 255), "25%", false);
  drawCompactButton(startX1 + 2 * (buttonWidth + buttonSpacing), buttonStartY, buttonWidth, buttonHeight,
                    rgbTo565(100, 150, 255), "50%", false);
  drawCompactButton(startX1 + 3 * (buttonWidth + buttonSpacing), buttonStartY, buttonWidth, buttonHeight,
                    rgbTo565(100, 150, 255), "75%", false);
  drawCompactButton(startX1 + 4 * (buttonWidth + buttonSpacing), buttonStartY, buttonWidth, buttonHeight,
                    rgbTo565(100, 150, 255), "100%", false);
  
  int buttonStartY2 = buttonStartY + buttonHeight + 8;
  int buttonWidth2 = 100;
  int totalWidth2 = 4 * buttonWidth2 + 3 * buttonSpacing;
  int startX2 = (tft.width() - totalWidth2) / 2;
  
  drawMenuButton(startX2, buttonStartY2, buttonWidth2, buttonHeight,
                 rgbTo565(245, 67, 54), "USTAVI");
  drawMenuButton(startX2 + buttonWidth2 + buttonSpacing, buttonStartY2, buttonWidth2, buttonHeight,
                 rgbTo565(66, 135, 245), "KALIBRIRAJ");
  drawMenuButton(startX2 + 2 * (buttonWidth2 + buttonSpacing), buttonStartY2, buttonWidth2, buttonHeight,
                 shadeAutoControl ? rgbTo565(255, 100, 100) : rgbTo565(100, 255, 100),
                 shadeAutoControl ? "AVTO IZKL" : "AVTO VKL");
  drawMenuButton(startX2 + 3 * (buttonWidth2 + buttonSpacing), buttonStartY2, buttonWidth2, buttonHeight,
                 rgbTo565(76, 175, 80), "SHRANI");
  
  int buttonStartY3 = buttonStartY2 + buttonHeight + 8;
  int backButtonWidth = 140;
  int backStartX = (tft.width() - backButtonWidth) / 2;
  
  drawMenuButton(backStartX, buttonStartY3, backButtonWidth, buttonHeight,
                 rgbTo565(156, 39, 176), "NAZAJ");

  if (!module3Active) {
    tft.fillRect(100, 150, 280, 50, rgbTo565(20, 40, 70));
    tft.drawRect(100, 150, 280, 50, rgbTo565(255, 80, 80));
    tft.setTextSize(1);
    tft.setTextColor(rgbTo565(255, 150, 50));
    tft.setCursor(130, 165);
    tft.println("MODUL 3 NI DOSEGLJIV!");
    tft.setCursor(150, 180);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.println("Preverite povezavo");
  }

  currentState = STATE_SHADE_CONTROL;
}

void handleShadeControlTouch(int x, int y) {
  Serial.printf("\n🔘 DOTIK: x=%d, y=%d\n", x, y);
  
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int leftColumnX = 40;
  int yOffset = 75;
  int lineHeight = 20;

  if (x > leftColumnX && x < leftColumnX + 45 && 
      y > yOffset + 2 * lineHeight + 12 && y < yOffset + 2 * lineHeight + 34) {
    Serial.println("  → MIN -100");
    shadeMinLux -= 100;
    if (shadeMinLux < 0) shadeMinLux = 0;
    if (shadeMinLux > shadeMaxLux) shadeMinLux = shadeMaxLux;
    markSettingsChanged();
    showShadeControlScreen();
    return;
  }

  if (x > leftColumnX + 55 && x < leftColumnX + 100 && 
      y > yOffset + 2 * lineHeight + 12 && y < yOffset + 2 * lineHeight + 34) {
    Serial.println("  → MIN +100");
    shadeMinLux += 100;
    if (shadeMinLux > shadeMaxLux) shadeMinLux = shadeMaxLux;
    markSettingsChanged();
    showShadeControlScreen();
    return;
  }

  if (x > leftColumnX && x < leftColumnX + 45 && 
      y > yOffset + 4 * lineHeight + 12 && y < yOffset + 4 * lineHeight + 34) {
    Serial.println("  → MAX -100");
    shadeMaxLux -= 100;
    if (shadeMaxLux < shadeMinLux) shadeMaxLux = shadeMinLux;
    markSettingsChanged();
    showShadeControlScreen();
    return;
  }

  if (x > leftColumnX + 55 && x < leftColumnX + 100 && 
      y > yOffset + 4 * lineHeight + 12 && y < yOffset + 4 * lineHeight + 34) {
    Serial.println("  → MAX +100");
    shadeMaxLux += 100;
    markSettingsChanged();
    showShadeControlScreen();
    return;
  }

  int barY = yOffset + 6 * lineHeight;
  int barHeight = 22;
  int buttonStartY = barY + barHeight + 12;
  int buttonWidth = 85;
  int buttonHeight = 28;
  int buttonSpacing = 6;
  
  int totalWidth1 = 5 * buttonWidth + 4 * buttonSpacing;
  int startX1 = (tft.width() - totalWidth1) / 2;
  
  if (y > buttonStartY && y < buttonStartY + buttonHeight) {
    
    if (x > startX1 && x < startX1 + buttonWidth) {
      Serial.println("  → GUMB: 0%");
      if (module3Active) {
        sendShadeCommand(CMD_MOVE_TO_POSITION, 0, 0);
      } else {
        showTemporaryMessage("Modul 3 ni dosegljiv!", rgbTo565(255, 80, 80), 1500);
      }
      showShadeControlScreen();
      return;
    }
    
    if (x > startX1 + buttonWidth + buttonSpacing && x < startX1 + 2 * buttonWidth + buttonSpacing) {
      Serial.println("  → GUMB: 25%");
      if (module3Active) {
        sendShadeCommand(CMD_MOVE_TO_POSITION, 25, 0);
      } else {
        showTemporaryMessage("Modul 3 ni dosegljiv!", rgbTo565(255, 80, 80), 1500);
      }
      showShadeControlScreen();
      return;
    }
    
    if (x > startX1 + 2 * (buttonWidth + buttonSpacing) && x < startX1 + 3 * buttonWidth + 2 * buttonSpacing) {
      Serial.println("  → GUMB: 50%");
      if (module3Active) {
        sendShadeCommand(CMD_MOVE_TO_POSITION, 50, 0);
      } else {
        showTemporaryMessage("Modul 3 ni dosegljiv!", rgbTo565(255, 80, 80), 1500);
      }
      showShadeControlScreen();
      return;
    }
    
    if (x > startX1 + 3 * (buttonWidth + buttonSpacing) && x < startX1 + 4 * buttonWidth + 3 * buttonSpacing) {
      Serial.println("  → GUMB: 75%");
      if (module3Active) {
        sendShadeCommand(CMD_MOVE_TO_POSITION, 75, 0);
      } else {
        showTemporaryMessage("Modul 3 ni dosegljiv!", rgbTo565(255, 80, 80), 1500);
      }
      showShadeControlScreen();
      return;
    }
    
    if (x > startX1 + 4 * (buttonWidth + buttonSpacing) && x < startX1 + 5 * buttonWidth + 4 * buttonSpacing) {
      Serial.println("  → GUMB: 100%");
      if (module3Active) {
        sendShadeCommand(CMD_MOVE_TO_POSITION, 100, 0);
      } else {
        showTemporaryMessage("Modul 3 ni dosegljiv!", rgbTo565(255, 80, 80), 1500);
      }
      showShadeControlScreen();
      return;
    }
  }
  
  int buttonStartY2 = buttonStartY + buttonHeight + 8;
  int buttonWidth2 = 100;
  int totalWidth2 = 4 * buttonWidth2 + 3 * buttonSpacing;
  int startX2 = (tft.width() - totalWidth2) / 2;
  
  if (y > buttonStartY2 && y < buttonStartY2 + buttonHeight) {
    
    if (x > startX2 && x < startX2 + buttonWidth2) {
      Serial.println("  → GUMB: USTAVI");
      if (module3Active) {
        sendShadeCommand(CMD_STOP, 0, 0);
      } else {
        showTemporaryMessage("Modul 3 ni dosegljiv!", rgbTo565(255, 80, 80), 1500);
      }
      showShadeControlScreen();
      return;
    }
    
    if (x > startX2 + buttonWidth2 + buttonSpacing && x < startX2 + 2 * buttonWidth2 + buttonSpacing) {
      Serial.println("  → GUMB: KALIBRIRAJ");
      if (module3Active) {
        sendShadeCommand(CMD_CALIBRATE, 0, 0);
        showTemporaryMessage("Kalibracija senčenja\nse izvaja...", rgbTo565(255, 200, 50), 2000);
      } else {
        showTemporaryMessage("Modul 3 ni dosegljiv!\nPreverite povezavo", rgbTo565(255, 80, 80), 2000);
      }
      showShadeControlScreen();
      return;
    }
    
    if (x > startX2 + 2 * (buttonWidth2 + buttonSpacing) && x < startX2 + 3 * buttonWidth2 + 2 * buttonSpacing) {
      Serial.printf("  → GUMB: AVTO NAČIN (trenutno: %s)\n", shadeAutoControl ? "VKLOPLJEN" : "IZKLOPLJEN");
      shadeAutoControl = !shadeAutoControl;
      markSettingsChanged();
      if (module3Active) {
        sendShadeCommand(CMD_SET_AUTO_MODE, shadeAutoControl ? 1 : 0, 0);
      }
      showShadeControlScreen();
      return;
    }
    
    if (x > startX2 + 3 * (buttonWidth2 + buttonSpacing) && x < startX2 + 4 * buttonWidth2 + 3 * buttonSpacing) {
      Serial.println("  → GUMB: SHRANI");
      saveAllSettings();
      showTemporaryMessage("Nastavitve shranjene!", rgbTo565(80, 220, 100), 1500);
      showShadeControlScreen();
      return;
    }
  }
  
  int buttonStartY3 = buttonStartY2 + buttonHeight + 8;
  int backButtonWidth = 140;
  int backStartX = (tft.width() - backButtonWidth) / 2;
  
  if (y > buttonStartY3 && y < buttonStartY3 + buttonHeight) {
    if (x > backStartX && x < backStartX + backButtonWidth) {
      Serial.println("  → GUMB: NAZAJ");
      showMainMenu();
      return;
    }
  }
}

void autoControlShade() {
    static unsigned long lastAutoCommand = 0;
    static int lastSentPosition = -1;
    static bool lastAutoState = false;
    
    if (!shadeAutoControl) {
        if (lastAutoState) {
            Serial.println("⚠️ Avtomatsko senčenje IZKLOPLJENO");
            lastAutoState = false;
        }
        return;
    }
    lastAutoState = true;
    
    if (!module3Active) {
        static unsigned long lastModuleWarning = 0;
        if (millis() - lastModuleWarning > 30000) {
            Serial.println("⚠️ Modul 3 ni aktiven! Ukazov ne morem poslati!");
            lastModuleWarning = millis();
        }
        return;
    }
    
    unsigned long now = millis();
    if (now - lastAutoCommand >= 2000) {
        lastAutoCommand = now;
        
        calculateShadePosition();
        
        if (abs(shadeCalculatedPosition - shadeCurrentPosition) > 2 || 
            lastSentPosition != shadeCalculatedPosition) {
            
            Serial.printf("\n🎯 AVTOMATSKO SENCENJE (NOTRANJA SVETLOBA):");
            Serial.printf("\n   Notranja svetloba: %.0f lx", ldrInternalLux);
            Serial.printf("\n   Meje: %.0f - %.0f lx", shadeMinLux, shadeMaxLux);
            Serial.printf("\n   Izračunana pozicija: %d%%", shadeCalculatedPosition);
            Serial.printf("\n   Trenutna pozicija: %d%%", shadeCurrentPosition);
            Serial.printf("\n   → Pošiljam ukaz za premik na %d%%\n", shadeCalculatedPosition);
            
            sendShadeCommand(CMD_MOVE_TO_POSITION, shadeCalculatedPosition, 0);
            lastSentPosition = shadeCalculatedPosition;
        }
    }
}

void drawClockwiseProgressRing(int x, int y, int outerRadius, int innerRadius, 
                               float currentValue, float minValue, float maxValue, 
                               uint16_t ringColor) {
  float progressPercent = 0;
  if (maxValue > minValue) {
    float constrainedValue = constrain(currentValue, minValue, maxValue);
    progressPercent = (constrainedValue - minValue) / (maxValue - minValue) * 100.0;
  }
  
  float progressAngle = progressPercent * 3.6;
  
  tft.fillCircle(x, y, outerRadius, PROGRESS_BG_COLOR);
  
  if (progressAngle > 0) {
    float startAngle = -90.0;
    float endAngle = startAngle + progressAngle;
    
    float startRad = startAngle * PI / 180.0;
    float endRad = endAngle * PI / 180.0;
    
    for (int r = innerRadius; r <= outerRadius; r++) {
      float angleStep = 1.0 / r * 5;
      if (angleStep < 0.5) angleStep = 0.5;
      
      for (float angle = startAngle; angle <= endAngle; angle += angleStep) {
        float rad = angle * PI / 180.0;
        int px = x + r * cos(rad);
        int py = y + r * sin(rad);
        
        if (px >= 0 && px < tft.width() && py >= 0 && py < tft.height()) {
          tft.drawPixel(px, py, ringColor);
        }
      }
    }
  }
  
  tft.fillCircle(x, y, innerRadius, ST77XX_BLACK);
  tft.drawCircle(x, y, innerRadius, ST77XX_WHITE);
}

void drawClockwiseDoubleRing(int x, int y, int outerRadius, int middleRadius, int innerRadius,
                             float currentValue, float minValue, float maxValue,
                             float targetMin, float targetMax, uint16_t currentColor) {
  float currentPercent = map(constrain(currentValue, minValue, maxValue), minValue, maxValue, 0, 100);
  float currentAngle = currentPercent * 3.6;
  float startAngle = -90.0;

  for (int r = innerRadius; r <= middleRadius - 2; r++) {
    tft.drawCircle(x, y, middleRadius, PROGRESS_BG_COLOR);
    tft.drawCircle(x, y, outerRadius, PROGRESS_BG_COLOR);
  }

  for (int r = outerRadius; r <= outerRadius + 1; r++) {
    tft.drawCircle(x, y, outerRadius + 1, ST77XX_WHITE);
  }

  if (currentAngle > 0) {
    for (float angle = 0; angle <= currentAngle; angle += 0.5) {
      float rad = (startAngle + angle) * PI / 180.0;
      int x1 = x + middleRadius * cos(rad);
      int y1 = y + middleRadius * sin(rad);
      int x2 = x + outerRadius * cos(rad);
      int y2 = y + outerRadius * sin(rad);
      tft.drawLine(x1, y1, x2, y2, currentColor);
    }
  }

  float targetStartPercent = map(targetMin, minValue, maxValue, 0, 100);
  float targetEndPercent = map(targetMax, minValue, maxValue, 0, 100);
  float targetStartAngle = targetStartPercent * 3.6;
  float targetEndAngle = targetEndPercent * 3.6;

  for (int r = innerRadius; r <= middleRadius - 2; r++) {
    tft.drawCircle(x, y, r, PROGRESS_BG_COLOR);
  }

  if (targetStartAngle < targetEndAngle) {
    for (float angle = targetStartAngle; angle <= targetEndAngle; angle += 0.5) {
      float rad = (startAngle + angle) * PI / 180.0;
      int x1 = x + innerRadius * cos(rad);
      int y1 = y + innerRadius * sin(rad);
      int x2 = x + (middleRadius - 2) * cos(rad);
      int y2 = y + (middleRadius - 2) * sin(rad);
      tft.drawLine(x1, y1, x2, y2, TARGET_RANGE_COLOR);
    }
  }
}

void autoControlRelays() {
  if (!autoControlEnabled) {
    Serial.println("AVTO KRMILJENJE: Onemogočeno (autoControlEnabled = false)");
    return;
  }
  
  if (!mcpInitialized) {
    Serial.println("AVTO KRMILJENJE: MCP23017 ni inicializiran!");
    return;
  }
  
  if (isnan(internalTemperature) || isnan(internalHumidity)) {
    Serial.println("AVTO KRMILJENJE: Podatki niso veljavni!");
    return;
  }

  unsigned long currentTime = millis();
  if (currentTime - lastControlCheck < CONTROL_CHECK_INTERVAL) {
    return;
  }
  
  Serial.println("\n========== AVTOMATSKO KRMILJENJE RELEJEV ==========");
  Serial.printf("Čas: %lu ms\n", currentTime);
  Serial.printf("Trenutna temperatura: %.1f°C (cilj: %.1f-%.1f°C)\n", 
                internalTemperature, targetTempMin, targetTempMax);
  Serial.printf("Trenutna vlaga: %.1f%% (cilj: %.1f-%.1f%%)\n", 
                internalHumidity, targetHumMin, targetHumMax);
  Serial.printf("Stanje relejev - GRETJE(R0):%s HLAJENJE(R1):%s VLAŽENJE(R2):%s SUŠENJE(R3):%s\n",
                relayStates[0]?"VKLOP":"IZKLOP",
                relayStates[1]?"VKLOP":"IZKLOP",
                relayStates[2]?"VKLOP":"IZKLOP",
                relayStates[3]?"VKLOP":"IZKLOP");
  
  if (internalTemperature > targetTempMax) {
    if (!relayStates[1]) {
      Serial.println("→ UKAZ: PREVISOKA temperatura - VKLOP HLAJENJA (rele 1)");
      setRelay(1, true);
    } else {
      Serial.println("→ HLAJENJE že vklopljeno");
    }
    
    if (relayStates[0]) {
      Serial.println("→ UKAZ: Izklop GRETJA (rele 0) - ker je temperatura previsoka");
      setRelay(0, false);
    }
  } 
  else if (internalTemperature < targetTempMin) {
    if (!relayStates[0]) {
      Serial.println("→ UKAZ: PRENIZKA temperatura - VKLOP GRETJA (rele 0)");
      setRelay(0, true);
    } else {
      Serial.println("→ GRETJE že vklopljeno");
    }
    
    if (relayStates[1]) {
      Serial.println("→ UKAZ: Izklop HLAJENJA (rele 1) - ker je temperatura prenizka");
      setRelay(1, false);
    }
  } 
  else {
    if (relayStates[0]) {
      Serial.println("→ UKAZ: Temperatura OK - IZKLOP GRETJA (rele 0)");
      setRelay(0, false);
    }
    if (relayStates[1]) {
      Serial.println("→ UKAZ: Temperatura OK - IZKLOP HLAJENJA (rele 1)");
      setRelay(1, false);
    }
    if (!relayStates[0] && !relayStates[1]) {
      Serial.println("→ Temperatura OK - GRETJE in HLAJENJE že izklopljena");
    }
  }
  
  if (internalHumidity > targetHumMax) {
    if (!relayStates[3]) {
      Serial.println("→ UKAZ: PREVISOKA vlaga - VKLOP SUŠENJA (rele 3)");
      setRelay(3, true);
    } else {
      Serial.println("→ SUŠENJE že vklopljeno");
    }
    
    if (relayStates[2]) {
      Serial.println("→ UKAZ: Izklop VLAŽENJA (rele 2) - ker je vlaga previsoka");
      setRelay(2, false);
    }
  } 
  else if (internalHumidity < targetHumMin) {
    if (!relayStates[2]) {
      Serial.println("→ UKAZ: PRENIZKA vlaga - VKLOP VLAŽENJA (rele 2)");
      setRelay(2, true);
    } else {
      Serial.println("→ VLAŽENJE že vklopljeno");
    }
    
    if (relayStates[3]) {
      Serial.println("→ UKAZ: Izklop SUŠENJA (rele 3) - ker je vlaga prenizka");
      setRelay(3, false);
    }
  } 
  else {
    if (relayStates[2]) {
      Serial.println("→ UKAZ: Vlaga OK - IZKLOP VLAŽENJA (rele 2)");
      setRelay(2, false);
    }
    if (relayStates[3]) {
      Serial.println("→ UKAZ: Vlaga OK - IZKLOP SUŠENJA (rele 3)");
      setRelay(3, false);
    }
    if (!relayStates[2] && !relayStates[3]) {
      Serial.println("→ Vlaga OK - VLAŽENJE in SUŠENJE že izklopljena");
    }
  }
  
  Serial.printf("Končno stanje - GRETJE(R0):%s HLAJENJE(R1):%s VLAŽENJE(R2):%s SUŠENJE(R3):%s\n",
                relayStates[0]?"VKLOP":"IZKLOP",
                relayStates[1]?"VKLOP":"IZKLOP",
                relayStates[2]?"VKLOP":"IZKLOP",
                relayStates[3]?"VKLOP":"IZKLOP");
  Serial.println("==============================================\n");
  
  lastControlCheck = currentTime;
}

void drawHorizontalProgressBarWithLabel(int x, int y, int width, int height, int value,
                                        const char* label, uint16_t color) {
  tft.setTextSize(1);
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(x - 25, y + 4);
  tft.print(label);

  tft.fillRoundRect(x, y, width, height, height / 2, PROGRESS_BG_COLOR);

  int progressWidth = map(constrain(value, 0, 100), 0, 100, 0, width);

  if (progressWidth > 0) {
    tft.fillRoundRect(x, y, progressWidth, height, height / 2, color);
  }

  tft.drawRoundRect(x, y, width, height, height / 2, ST77XX_WHITE);

  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(x + width + 5, y + 4);
  tft.printf("%d%%", value);
}

void drawHomeScreenBackground() {
  for (int y = STATUS_BAR_HEIGHT; y < tft.height(); y++) {
    int progress = map(y, STATUS_BAR_HEIGHT, tft.height(), 0, 100);
    uint8_t r = 10 + (progress * 2 / 100);
    uint8_t g = 20 + (progress * 3 / 100);
    uint8_t b = 40 + (progress * 6 / 100);
    tft.drawFastHLine(0, y, tft.width(), rgbTo565(r, g, b));
  }

  for (int i = 0; i < 20; i++) {
    int x = random(0, tft.width());
    int y = random(STATUS_BAR_HEIGHT + 50, tft.height() - 50);
    int size = random(1, 3);
    uint16_t color = rgbTo565(40, 40, 60);
    tft.fillCircle(x, y, size, color);
  }

  homeScreenBackgroundDrawn = true;
}

void showHomeScreen() {
  if (lastState != STATE_HOME_SCREEN) {
    homeScreenBackgroundDrawn = false;
    homeScreenStaticElementsDrawn = false;
    lastDrawnExternalLuxBar = -999;
    tft.fillScreen(ST77XX_BLACK);
  }

  unsigned long now = millis();
  if (currentState == STATE_HOME_SCREEN && now - lastHomeScreenRedraw < 2000) {
    updateHomeScreenDynamicValues();
    return;
  }
  
  Serial.println("\n=== RISANJE DOMACEGA ZASLONA ===");
  
  if (!homeScreenBackgroundDrawn) {
    drawHomeScreenBackground();
  }
  
  drawStatusBar();
  
  if (!homeScreenStaticElementsDrawn) {
    drawHomeScreenStaticElements();
  }
  
  int circleRadius = 70;
  int outerRingRadius = circleRadius + 10;
  int middleRingRadius = circleRadius + 5;
  int innerRingRadius = circleRadius - 8;

  int leftCircleX = 90;
  int rightCircleX = 390;
  int circleY = tft.height() / 2 - 30 - 6;

  int smallCircleRadius = 32;
  int smallOuterRadius = smallCircleRadius + 6;
  int smallInnerRadius = smallCircleRadius - 3;
  int smallCircleX = 240;
  int smallCircleY = circleY - 36;

  int extTempCircleX = 160;
  int extTempCircleY = circleY - 58;
  int extHumCircleX = 320;
  int extHumCircleY = circleY - 58;

  int progressBarHeight = 20;
  int progressBarWidth = tft.width() - 20;
  int progressBarX = (tft.width() - progressBarWidth) / 2;

  int controlY = extTempCircleY + smallCircleRadius + 40 - 6;
  int relayStartY = controlY - 5;
  int relayButtonHeight = 16;
  int relayVerticalSpacing = 4;
  
  int lightBarY = relayStartY + 4 * (relayButtonHeight + relayVerticalSpacing) + 5;
  int barSpacing = 10;
  int calcBarY = lightBarY + progressBarHeight + barSpacing;
  int actualBarY = calcBarY + progressBarHeight + barSpacing;

  int topProgressBarY = STATUS_BAR_HEIGHT + 5;
  int topProgressBarWidth = (extHumCircleX - extTempCircleX) - 70;
  int topProgressBarHeight = 20;
  int topProgressBarX = extTempCircleX + (extHumCircleX - extTempCircleX - topProgressBarWidth) / 2;

  if (topProgressBarWidth > 20) {
    int luxPercent = 0;
    if (module1Active && externalLux >= 0) {
      float constrainedLux = constrain(externalLux, 0, 20000);
      luxPercent = (constrainedLux / 20000.0) * 100.0;
    }

    tft.fillRoundRect(topProgressBarX, topProgressBarY, topProgressBarWidth, topProgressBarHeight, 8, PROGRESS_BG_COLOR);

    if (luxPercent > 0 && module1Active) {
      int progressWidth = map(luxPercent, 0, 100, 0, topProgressBarWidth);
      if (progressWidth > 0) {
        tft.fillRoundRect(topProgressBarX, topProgressBarY, progressWidth, topProgressBarHeight, 8, LIGHT_COLOR);
      }
    }

    tft.drawRoundRect(topProgressBarX, topProgressBarY, topProgressBarWidth, topProgressBarHeight, 8, ST77XX_WHITE);

    tft.setFont();
    tft.setTextSize(1);

    String luxStr;
    if (module1Active && externalLux >= 0) {
      if (externalLux < 10) {
        luxStr = String(externalLux, 1) + " lx";
      } else if (externalLux < 1000) {
        luxStr = String((int)externalLux) + " lx";
      } else {
        luxStr = String(externalLux / 1000.0, 1) + " klx";
      }
    } else {
      luxStr = "-- lx";
    }

    int16_t luxX1, luxY1;
    uint16_t luxW, luxH;
    tft.getTextBounds(luxStr, 0, 0, &luxX1, &luxY1, &luxW, &luxH);

    int textCenterY = topProgressBarY + (topProgressBarHeight / 2);
    int luxTextX = topProgressBarX + (topProgressBarWidth - luxW) / 2;
    int luxTextY = textCenterY - (luxH / 2) - luxY1;

    bool isOverProgress = false;
    if (module1Active && luxPercent > 0) {
      int progressWidth = map(luxPercent, 0, 100, 0, topProgressBarWidth);
      isOverProgress = (luxTextX + luxW / 2) < (topProgressBarX + progressWidth);
    }

    uint16_t textColor = (isOverProgress && module1Active) ? ST77XX_BLACK : ST77XX_WHITE;
    tft.setCursor(luxTextX, luxTextY);
    tft.setTextColor(textColor);
    tft.print(luxStr);
  }

  uint16_t tempColor;
  if (internalTemperature < targetTempMin) {
    tempColor = TOO_LOW_COLOR;
  } else if (internalTemperature > targetTempMax) {
    tempColor = TOO_HIGH_COLOR;
  } else {
    tempColor = NORMAL_COLOR;
  }

  drawClockwiseDoubleRing(leftCircleX, circleY, outerRingRadius, middleRingRadius, innerRingRadius,
                          internalTemperature, 0.0, 50.0, targetTempMin, targetTempMax, tempColor);

  tft.fillCircle(leftCircleX, circleY, circleRadius - 12, tempColor);
  tft.drawCircle(leftCircleX, circleY, circleRadius - 12, ST77XX_WHITE);

  if (tempTrend != TREND_NONE && (millis() - lastTrendChangeTime) < TREND_TIMEOUT) {
    int arrowX = leftCircleX;
    int arrowY = circleY - circleRadius + 15;
    uint16_t arrowColor = (tempTrend == TREND_UP) ? rgbTo565(0, 255, 100) : rgbTo565(255, 100, 100);
    drawTrendArrow(arrowX, arrowY, tempTrend, arrowColor);
  }

  tft.setFont(&FreeSansBold24pt7b);
  String tempStr = String(internalTemperature, 1);
  int16_t tempX1, tempY1;
  uint16_t tempW, tempH;
  tft.getTextBounds(tempStr, 0, 0, &tempX1, &tempY1, &tempW, &tempH);
  int tempTextX = leftCircleX - tempW / 2;
  int tempTextY = circleY + tempH / 2 - 15;
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(tempTextX, tempTextY);
  tft.print(tempStr);

  tft.setFont(&FreeSansBold18pt7b);
  String tempSymbolStr = "°C";
  int16_t tempSymbolX1, tempSymbolY1;
  uint16_t tempSymbolW, tempSymbolH;
  tft.getTextBounds(tempSymbolStr, 0, 0, &tempSymbolX1, &tempSymbolY1, &tempSymbolW, &tempSymbolH);
  int tempSymbolX = leftCircleX - tempSymbolW / 2;
  int tempSymbolY = tempTextY + tempH - 4;
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(tempSymbolX, tempSymbolY);
  tft.print(tempSymbolStr);

  uint16_t humColor;
  if (internalHumidity < targetHumMin) {
    humColor = TOO_LOW_COLOR;
  } else if (internalHumidity > targetHumMax) {
    humColor = TOO_HIGH_COLOR;
  } else {
    humColor = NORMAL_COLOR;
  }

  drawClockwiseDoubleRing(rightCircleX, circleY, outerRingRadius, middleRingRadius, innerRingRadius,
                          internalHumidity, 0.0, 100.0, targetHumMin, targetHumMax, humColor);

  tft.fillCircle(rightCircleX, circleY, circleRadius - 12, humColor);
  tft.drawCircle(rightCircleX, circleY, circleRadius - 12, ST77XX_WHITE);

  if (humTrend != TREND_NONE && (millis() - lastTrendChangeTime) < TREND_TIMEOUT) {
    int arrowX = rightCircleX;
    int arrowY = circleY - circleRadius + 15;
    uint16_t arrowColor = (humTrend == TREND_UP) ? rgbTo565(0, 255, 100) : rgbTo565(255, 100, 100);
    drawTrendArrow(arrowX, arrowY, humTrend, arrowColor);
  }

  tft.setFont(&FreeSansBold24pt7b);
  String humStr = String(internalHumidity, 1);
  int16_t humX1, humY1;
  uint16_t humW, humH;
  tft.getTextBounds(humStr, 0, 0, &humX1, &humY1, &humW, &humH);
  int humTextX = rightCircleX - humW / 2;
  int humTextY = circleY + humH / 2 - 15;
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(humTextX, humTextY);
  tft.print(humStr);

  tft.setFont(&FreeSansBold18pt7b);
  String humSymbolStr = "%";
  int16_t humSymbolX1, humSymbolY1;
  uint16_t humSymbolW, humSymbolH;
  tft.getTextBounds(humSymbolStr, 0, 0, &humSymbolX1, &humSymbolY1, &humSymbolW, &humSymbolH);
  int humSymbolX = rightCircleX - humSymbolW / 2;
  int humSymbolY = humTextY + humH - 4;
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(humSymbolX, humSymbolY);
  tft.print(humSymbolStr);

  drawClockwiseProgressRing(smallCircleX, smallCircleY, smallOuterRadius, smallInnerRadius,
                            soilMoisturePercent, 0.0, 100.0, SOIL_PROGRESS_COLOR);

  tft.fillCircle(smallCircleX, smallCircleY, smallCircleRadius - 4, SOIL_CIRCLE_COLOR);
  tft.drawCircle(smallCircleX, smallCircleY, smallCircleRadius - 4, ST77XX_WHITE);
  tft.drawCircle(smallCircleX, smallCircleY, smallOuterRadius, ST77XX_WHITE);

  tft.setFont(&FreeSansBold12pt7b);
  String soilStr = String(soilMoisturePercent);
  int16_t soilX1, soilY1;
  uint16_t soilW, soilH;
  tft.getTextBounds(soilStr, 0, 0, &soilX1, &soilY1, &soilW, &soilH);
  int soilTextX = smallCircleX - soilW / 2;
  int soilTextY = smallCircleY + soilH / 2 - 5;
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(soilTextX, soilTextY);
  tft.print(soilStr);

  tft.setFont(&FreeSansBold9pt7b);
  String soilSymbolStr = "%";
  int16_t soilSymbolX1, soilSymbolY1;
  uint16_t soilSymbolW, soilSymbolH;
  tft.getTextBounds(soilSymbolStr, 0, 0, &soilSymbolX1, &soilSymbolY1, &soilSymbolW, &soilSymbolH);
  int soilSymbolX = smallCircleX - soilSymbolW / 2;
  int soilSymbolY = soilTextY + soilH - 2;
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(soilSymbolX, soilSymbolY);
  tft.print(soilSymbolStr);

  drawClockwiseProgressRing(extTempCircleX, extTempCircleY, smallOuterRadius, smallInnerRadius,
                            module1Active ? externalTemperature : 0,
                            -10.0, 40.0,
                            module1Active ? EXT_TEMP_PROGRESS_COLOR : rgbTo565(60, 60, 60));

  tft.fillCircle(extTempCircleX, extTempCircleY, smallCircleRadius - 4,
                 module1Active ? EXT_TEMP_CIRCLE_COLOR : rgbTo565(80, 80, 80));
  tft.drawCircle(extTempCircleX, extTempCircleY, smallCircleRadius - 4, ST77XX_WHITE);
  tft.drawCircle(extTempCircleX, extTempCircleY, smallOuterRadius, ST77XX_WHITE);

  tft.setFont(&FreeSansBold12pt7b);
  String extTempStr = module1Active ? String(externalTemperature, 1) : "--.-";
  int16_t extTempX1, extTempY1;
  uint16_t extTempW, extTempH;
  tft.getTextBounds(extTempStr, 0, 0, &extTempX1, &extTempY1, &extTempW, &extTempH);
  int extTempTextX = extTempCircleX - extTempW / 2;
  int extTempTextY = extTempCircleY + extTempH / 2 - 5;
  tft.setTextColor(module1Active ? ST77XX_WHITE : rgbTo565(100, 100, 100));
  tft.setCursor(extTempTextX, extTempTextY);
  tft.print(extTempStr);

  tft.setFont(&FreeSansBold9pt7b);
  String extTempSymbolStr = "°C";
  int16_t extTempSymbolX1, extTempSymbolY1;
  uint16_t extTempSymbolW, extTempSymbolH;
  tft.getTextBounds(extTempSymbolStr, 0, 0, &extTempSymbolX1, &extTempSymbolY1, &extTempSymbolW, &extTempSymbolH);
  int extTempSymbolX = extTempCircleX - extTempSymbolW / 2;
  int extTempSymbolY = extTempTextY + extTempH - 2;
  tft.setTextColor(module1Active ? ST77XX_WHITE : rgbTo565(100, 100, 100));
  tft.setCursor(extTempSymbolX, extTempSymbolY);
  tft.print(extTempSymbolStr);

  drawClockwiseProgressRing(extHumCircleX, extHumCircleY, smallOuterRadius, smallInnerRadius,
                            module1Active ? externalHumidity : 0,
                            0.0, 100.0,
                            module1Active ? EXT_HUM_PROGRESS_COLOR : rgbTo565(60, 60, 60));

  tft.fillCircle(extHumCircleX, extHumCircleY, smallCircleRadius - 4,
                 module1Active ? EXT_HUM_CIRCLE_COLOR : rgbTo565(80, 80, 80));
  tft.drawCircle(extHumCircleX, extHumCircleY, smallCircleRadius - 4, ST77XX_WHITE);
  tft.drawCircle(extHumCircleX, extHumCircleY, smallOuterRadius, ST77XX_WHITE);

  tft.setFont(&FreeSansBold12pt7b);
  String extHumStr = module1Active ? String(externalHumidity, 1) : "--.-";
  int16_t extHumX1, extHumY1;
  uint16_t extHumW, extHumH;
  tft.getTextBounds(extHumStr, 0, 0, &extHumX1, &extHumY1, &extHumW, &extHumH);
  int extHumTextX = extHumCircleX - extHumW / 2;
  int extHumTextY = extHumCircleY + extHumH / 2 - 5;
  tft.setTextColor(module1Active ? ST77XX_WHITE : rgbTo565(100, 100, 100));
  tft.setCursor(extHumTextX, extHumTextY);
  tft.print(extHumStr);

  tft.setFont(&FreeSansBold9pt7b);
  String extHumSymbolStr = "%";
  int16_t extHumSymbolX1, extHumSymbolY1;
  uint16_t extHumSymbolW, extHumSymbolH;
  tft.getTextBounds(extHumSymbolStr, 0, 0, &extHumSymbolX1, &extHumSymbolY1, &extHumSymbolW, &extHumSymbolH);
  int extHumSymbolX = extHumCircleX - extHumSymbolW / 2;
  int extHumSymbolY = extHumTextY + extHumH - 2;
  tft.setTextColor(module1Active ? ST77XX_WHITE : rgbTo565(100, 100, 100));
  tft.setCursor(extHumSymbolX, extHumSymbolY);
  tft.print(extHumSymbolStr);

  int relayColumnWidth = 56;
  int relayColumnSpacing = 4;

  int totalRelaysWidth = 2 * relayColumnWidth + relayColumnSpacing;
  int availableSpace = rightCircleX - leftCircleX - 10;
  if (totalRelaysWidth > availableSpace) {
    relayColumnWidth = (availableSpace - relayColumnSpacing) / 2;
    totalRelaysWidth = 2 * relayColumnWidth + relayColumnSpacing;
  }

  int relayStartX = (tft.width() - totalRelaysWidth) / 2;

  int leftColumnRelays[4] = { 0, 2, 4, 6 };
  String leftLabels[4] = { "GRET", "VLAZ", "R5", "R7" };

  tft.setFont();
  tft.setTextSize(1);

  for (int i = 0; i < 4; i++) {
    int relayIndex = leftColumnRelays[i];
    int buttonY = relayStartY + i * (relayButtonHeight + relayVerticalSpacing);

    uint16_t relayColor = relayStates[relayIndex] ? RELAY_ON_COLOR : RELAY_OFF_COLOR;
    if (!relayControlEnabled) relayColor = RELAY_DISABLED_COLOR;

    tft.fillRoundRect(relayStartX, buttonY, relayColumnWidth, relayButtonHeight, 3, relayColor);
    tft.drawRoundRect(relayStartX, buttonY, relayColumnWidth, relayButtonHeight, 3, ST77XX_WHITE);

    if (relayColor == RELAY_ON_COLOR) {
      tft.setTextColor(ST77XX_BLACK);
    } else if (relayColor == RELAY_OFF_COLOR) {
      tft.setTextColor(ST77XX_WHITE);
    } else {
      tft.setTextColor(rgbTo565(200, 200, 200));
    }

    String relayLabel = leftLabels[i];
    int16_t x1, y1;
    uint16_t textWidth, textHeight;
    tft.getTextBounds(relayLabel, 0, 0, &x1, &y1, &textWidth, &textHeight);
    int textX = relayStartX + (relayColumnWidth - textWidth) / 2 - x1;
    int textY = buttonY + (relayButtonHeight - textHeight) / 2 - y1;
    tft.setCursor(textX, textY);
    tft.print(relayLabel);
  }

  int rightColumnX = relayStartX + relayColumnWidth + relayColumnSpacing;
  int rightColumnRelays[4] = { 1, 3, 5, 7 };
  String rightLabels[4] = { "HLAJ", "SUS", "R6", "R8" };

  for (int i = 0; i < 4; i++) {
    int relayIndex = rightColumnRelays[i];
    int buttonY = relayStartY + i * (relayButtonHeight + relayVerticalSpacing);

    uint16_t relayColor = relayStates[relayIndex] ? RELAY_ON_COLOR : RELAY_OFF_COLOR;
    if (!relayControlEnabled) relayColor = RELAY_DISABLED_COLOR;

    tft.fillRoundRect(rightColumnX, buttonY, relayColumnWidth, relayButtonHeight, 3, relayColor);
    tft.drawRoundRect(rightColumnX, buttonY, relayColumnWidth, relayButtonHeight, 3, ST77XX_WHITE);

    if (relayColor == RELAY_ON_COLOR) {
      tft.setTextColor(ST77XX_BLACK);
    } else if (relayColor == RELAY_OFF_COLOR) {
      tft.setTextColor(ST77XX_WHITE);
    } else {
      tft.setTextColor(rgbTo565(200, 200, 200));
    }

    String relayLabel = rightLabels[i];
    int16_t x1, y1;
    uint16_t textWidth, textHeight;
    tft.getTextBounds(relayLabel, 0, 0, &x1, &y1, &textWidth, &textHeight);
    int textX = rightColumnX + (relayColumnWidth - textWidth) / 2 - x1;
    int textY = buttonY + (relayButtonHeight - textHeight) / 2 - y1;
    tft.setCursor(textX, textY);
    tft.print(relayLabel);
  }

  tft.fillRoundRect(progressBarX, lightBarY, progressBarWidth, progressBarHeight, 10, PROGRESS_BG_COLOR);
  
  int lightProgressWidth = map(constrain(ldrInternalPercent, 0, 100), 0, 100, 0, progressBarWidth);
  if (lightProgressWidth > 0) {
    tft.fillRoundRect(progressBarX, lightBarY, lightProgressWidth, progressBarHeight, 10, LIGHT_COLOR);
  }
  
  tft.drawRoundRect(progressBarX, lightBarY, progressBarWidth, progressBarHeight, 10, ST77XX_WHITE);
  
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(progressBarX + 14, lightBarY + 4);
  tft.print("Svetloba v vitrini ");
  
  String lightPercentStr = String(ldrInternalPercent) + "%";
  int16_t lightX1, lightY1;
  uint16_t lightW, lightH;
  tft.getTextBounds(lightPercentStr, 0, 0, &lightX1, &lightY1, &lightW, &lightH);
  tft.setCursor(progressBarX + progressBarWidth - lightW - 10, lightBarY + 4);
  tft.print(lightPercentStr);
  
  tft.fillRoundRect(progressBarX, calcBarY, progressBarWidth, progressBarHeight, 10, PROGRESS_BG_COLOR);
  
  int calcProgressWidth = map(shadeCalculatedPosition, 0, 100, 0, progressBarWidth);
  if (calcProgressWidth > 0) {
    tft.fillRoundRect(progressBarX, calcBarY, calcProgressWidth, progressBarHeight, 10, rgbTo565(0, 150, 255));
  }
  
  tft.drawRoundRect(progressBarX, calcBarY, progressBarWidth, progressBarHeight, 10, ST77XX_WHITE);
  
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(progressBarX + 14, calcBarY + 4);
  tft.print("Izrac. pozicija ");
  
  String calcPosStr = String(shadeCalculatedPosition) + "%";
  int16_t calcX1, calcY1;
  uint16_t calcW, calcH;
  tft.getTextBounds(calcPosStr, 0, 0, &calcX1, &calcY1, &calcW, &calcH);
  tft.setCursor(progressBarX + progressBarWidth - calcW - 10, calcBarY + 4);
  tft.print(calcPosStr);
  
  tft.fillRoundRect(progressBarX, actualBarY, progressBarWidth, progressBarHeight, 10, PROGRESS_BG_COLOR);
  
  int actualProgressWidth = map(shadeCurrentPosition, 0, 100, 0, progressBarWidth);
  if (actualProgressWidth > 0) {
    tft.fillRoundRect(progressBarX, actualBarY, actualProgressWidth, progressBarHeight, 10, rgbTo565(255, 100, 0));
  }
  
  tft.drawRoundRect(progressBarX, actualBarY, progressBarWidth, progressBarHeight, 10, ST77XX_WHITE);
  
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(progressBarX + 14, actualBarY + 4);
  tft.print("Dejanska pozicija ");
  
  String actualPosStr = String(shadeCurrentPosition) + "%";
  int16_t actualX1, actualY1;
  uint16_t actualW, actualH;
  tft.getTextBounds(actualPosStr, 0, 0, &actualX1, &actualY1, &actualW, &actualH);
  tft.setCursor(progressBarX + progressBarWidth - actualW - 10, actualBarY + 4);
  tft.print(actualPosStr);
  
  if (!module4Active || isnan(internalTemperature)) {
    tft.setFont();
    tft.setTextSize(0);
    tft.setTextColor(rgbTo565(255, 150, 50));
    tft.setCursor(progressBarX + 14, actualBarY + progressBarHeight + 8);
    tft.print("⚠️ Modul 4 (vitrina) ni dosegljiv - senzorji niso na voljo!");
  } else if (!shadeAutoControl) {
    tft.setFont();
    tft.setTextSize(0);
    tft.setTextColor(rgbTo565(255, 200, 50));
    tft.setCursor(progressBarX + 14, actualBarY + progressBarHeight + 8);
    tft.print("ℹ️ Avtomatsko senčenje je izklopljeno");
  }
  
  drawWarningBar();

  lastDrawnInternalTemp = internalTemperature;
  lastDrawnInternalHum = internalHumidity;
  lastDrawnSoilPercent = soilMoisturePercent;
  lastDrawnExternalTemp = externalTemperature;
  lastDrawnExternalHum = externalHumidity;
  lastDrawnInternalLux = ldrInternalLux;
  lastDrawnExternalLux = externalLux;
  lastDrawnModule4Temp = module4AirTemp;
  lastDrawnModule4Hum = module4AirHum;
  lastDrawnModule4Light = module4LightPercent;
  lastDrawnModule4SoilM = module4SoilMoisture;
  lastDrawnModule4TVOC = module4TVOC;
  lastDrawnModule1Active = module1Active;
  lastDrawnModule2Active = module2Active;
  lastDrawnModule3Active = module3Active;
  lastDrawnVentState = relayStates[VENTILATION_RELAY];
  lastDrawnShadeCalcPos = shadeCalculatedPosition;
  lastDrawnShadeActualPos = shadeCurrentPosition;
  lastDrawnTempTrend = tempTrend;
  lastDrawnHumTrend = humTrend;
  
  for (int i = 0; i < RELAY_COUNT; i++) {
    lastDrawnRelays[i] = relayStates[i];
  }

  lastHomeScreenRedraw = now;
  currentState = STATE_HOME_SCREEN;
  lastState = STATE_HOME_SCREEN;
  
  Serial.println("=== DOMACI ZASLON NARISAN ===\n");
}

void drawHomeScreenStaticElements() {
  int circleRadius = 70;
  int outerRingRadius = circleRadius + 10;
  int middleRingRadius = circleRadius + 5;
  int innerRingRadius = circleRadius - 8;
  
  int leftCircleX = 90;
  int rightCircleX = 390;
  int circleY = tft.height() / 2 - 30 - 6;

  int smallCircleRadius = 32;
  int extTempCircleX = 160;
  int extTempCircleY = circleY - 58;
  
  int controlY = extTempCircleY + smallCircleRadius + 40 - 6;
  int relayStartY = controlY - 5;
  int relayButtonHeight = 16;
  int relayVerticalSpacing = 4;
  
  int ventSymbolX = 20;
  int ventSymbolY = STATUS_BAR_HEIGHT + 28;
  for (int r = 16; r >= 0; r -= 2) {
    tft.drawCircle(ventSymbolX, ventSymbolY, r, rgbTo565(120, 120, 140));
  }
  tft.drawCircle(ventSymbolX, ventSymbolY, 16, rgbTo565(120, 120, 140));
  tft.fillCircle(ventSymbolX, ventSymbolY, 4, rgbTo565(100, 100, 120));

  drawHamburgerMenu(HAMBURGER_X, HAMBURGER_Y, HAMBURGER_SIZE);

  for (int r = innerRingRadius; r <= outerRingRadius; r += 2) {
    tft.drawCircle(leftCircleX, circleY, r, PROGRESS_BG_COLOR);
  }

  for (int r = innerRingRadius; r <= outerRingRadius; r += 2) {
    tft.drawCircle(rightCircleX, circleY, r, PROGRESS_BG_COLOR);
  }

  homeScreenStaticElementsDrawn = true;
}

void updateHomeScreenDynamicValues() {
  unsigned long now = millis();
  
  if (now - lastHomeScreenPartialUpdate < 1000) {
    return;
  }
  
  bool externalLuxChanged = (abs(lastDrawnExternalLuxBar - externalLux) > 5);
  
  int circleRadius = 70;
  int leftCircleX = 90;
  int rightCircleX = 390;
  int circleY = tft.height() / 2 - 30 - 6;
  
  int smallCircleRadius = 32;
  int extTempCircleX = 160;
  int extTempCircleY = circleY - 58;
  int extHumCircleX = 320;
  int extHumCircleY = circleY - 58;
  
  if (externalLuxChanged) {
    int topProgressBarY = STATUS_BAR_HEIGHT + 5;
    int topProgressBarWidth = (extHumCircleX - extTempCircleX) - 70;
    int topProgressBarHeight = 20;
    int topProgressBarX = extTempCircleX + (extHumCircleX - extTempCircleX - topProgressBarWidth) / 2;

    if (topProgressBarWidth > 20) {
      int luxPercent = 0;
      if (module1Active && externalLux >= 0) {
        float constrainedLux = constrain(externalLux, 0, 20000);
        luxPercent = (constrainedLux / 20000.0) * 100.0;
      }

      tft.fillRect(topProgressBarX, topProgressBarY, topProgressBarWidth, topProgressBarHeight, ST77XX_BLACK);
      tft.fillRoundRect(topProgressBarX, topProgressBarY, topProgressBarWidth, topProgressBarHeight, 8, PROGRESS_BG_COLOR);
      tft.drawRoundRect(topProgressBarX, topProgressBarY, topProgressBarWidth, topProgressBarHeight, 8, ST77XX_WHITE);
      
      if (luxPercent > 0 && module1Active) {
        int progressWidth = map(luxPercent, 0, 100, 0, topProgressBarWidth);
        if (progressWidth > 0) {
          tft.fillRoundRect(topProgressBarX, topProgressBarY, progressWidth, topProgressBarHeight, 8, LIGHT_COLOR);
        }
      }
      
      tft.setFont();
      tft.setTextSize(1);
      
      String luxStr;
      if (module1Active && externalLux >= 0) {
        if (externalLux < 10) luxStr = String(externalLux, 1) + " lx";
        else if (externalLux < 1000) luxStr = String((int)externalLux) + " lx";
        else luxStr = String(externalLux / 1000.0, 1) + " klx";
      } else {
        luxStr = "-- lx";
      }
      
      int16_t luxX1, luxY1;
      uint16_t luxW, luxH;
      tft.getTextBounds(luxStr, 0, 0, &luxX1, &luxY1, &luxW, &luxH);
      
      int textCenterY = topProgressBarY + (topProgressBarHeight / 2);
      int luxTextX = topProgressBarX + (topProgressBarWidth - luxW) / 2;
      int luxTextY = textCenterY - (luxH / 2) - luxY1;
      
      bool isOverProgress = false;
      if (module1Active && luxPercent > 0) {
        int progressWidth = map(luxPercent, 0, 100, 0, topProgressBarWidth);
        isOverProgress = (luxTextX + luxW / 2) < (topProgressBarX + progressWidth);
      }
      
      uint16_t textColor = (isOverProgress && module1Active) ? ST77XX_BLACK : ST77XX_WHITE;
      tft.setCursor(luxTextX, luxTextY);
      tft.setTextColor(textColor);
      tft.print(luxStr);
      
      lastDrawnExternalLuxBar = externalLux;
    }
  }
  
  int controlY = extTempCircleY + smallCircleRadius + 40 - 6;
  int relayStartY = controlY - 5;
  int relayButtonHeight = 16;
  int relayVerticalSpacing = 4;
  
  int progressBarHeight = 20;
  int progressBarWidth = tft.width() - 20;
  int progressBarX = (tft.width() - progressBarWidth) / 2;
  int lightBarY = relayStartY + 4 * (relayButtonHeight + relayVerticalSpacing) + 5;
  
  int progressWidth = map(constrain(ldrInternalPercent, 0, 100), 0, 100, 0, progressBarWidth);
  
  tft.fillRect(progressBarX, lightBarY, progressBarWidth, progressBarHeight, ST77XX_BLACK);
  tft.fillRoundRect(progressBarX, lightBarY, progressBarWidth, progressBarHeight, 10, PROGRESS_BG_COLOR);
  tft.drawRoundRect(progressBarX, lightBarY, progressBarWidth, progressBarHeight, 10, ST77XX_WHITE);
  
  if (progressWidth > 0) {
    tft.fillRoundRect(progressBarX, lightBarY, progressWidth, progressBarHeight, 10, LIGHT_COLOR);
  }
  
  tft.setFont();
  tft.setTextSize(1);
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(progressBarX + 14, lightBarY + 4);
  tft.print("Svetloba v vitrini ");
  
  String lightPercentStr = String(ldrInternalPercent) + "%";
  int16_t luxX1_inner, luxY1_inner;
  uint16_t luxW_inner, luxH_inner;
  tft.getTextBounds(lightPercentStr, 0, 0, &luxX1_inner, &luxY1_inner, &luxW_inner, &luxH_inner);
  tft.setCursor(progressBarX + progressBarWidth - luxW_inner - 10, lightBarY + 4);
  tft.setTextColor(ST77XX_WHITE);
  tft.print(lightPercentStr);
  
  lastDrawnModule4Temp = module4AirTemp;
  lastDrawnModule4Hum = module4AirHum;
  lastDrawnModule4Light = module4LightPercent;
  lastDrawnModule4SoilM = module4SoilMoisture;
  lastDrawnModule4TVOC = module4TVOC;
  lastDrawnModule4ECO2 = module4ECO2;

  lastHomeScreenPartialUpdate = now;
}

void forceFullHomeScreenRedraw() {
  homeScreenBackgroundDrawn = false;
  homeScreenStaticElementsDrawn = false;
  lastDrawnExternalLuxBar = -999;
  
  tft.fillScreen(ST77XX_BLACK);
  
  lastDrawnInternalTemp = -999;
  lastDrawnInternalHum = -999;
  lastDrawnSoilPercent = -999;
  lastDrawnExternalTemp = -999;
  lastDrawnExternalHum = -999;
  lastDrawnInternalLux = -999;
  lastDrawnExternalLux = -999;
  lastDrawnShadeCalcPos = -999;
  lastDrawnShadeActualPos = -999;
  lastDrawnModule1Active = false;
  lastDrawnModule2Active = false;
  lastDrawnModule3Active = false;
  lastDrawnVentState = false;
  lastDrawnTempTrend = TREND_NONE;
  lastDrawnHumTrend = TREND_NONE;
  
  for (int i = 0; i < RELAY_COUNT; i++) {
    lastDrawnRelays[i] = false;
  }
  
  showHomeScreen();
}

void handleHomeScreenTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int hamburgerTouchX = HAMBURGER_X - HAMBURGER_TOUCH_PADDING;
  int hamburgerTouchY = HAMBURGER_Y - HAMBURGER_TOUCH_PADDING;
  int hamburgerTouchWidth = HAMBURGER_SIZE + 2 * HAMBURGER_TOUCH_PADDING;
  int hamburgerTouchHeight = 3 * (3 + 5) - 5 + 2 * HAMBURGER_TOUCH_PADDING;
  
  if (x >= hamburgerTouchX && x <= hamburgerTouchX + hamburgerTouchWidth &&
      y >= hamburgerTouchY && y <= hamburgerTouchY + hamburgerTouchHeight) {
    
    Serial.println("=== HAMBURGER MENI PRITISNJEN ===");
    
    animateHamburgerMenu();
    
    showMainMenu();
    return;
  }

  int ventSymbolY = STATUS_BAR_HEIGHT + 28;
  int ventSymbolX = 20;
  int ventTouchRadius = 35;

  int distanceToVent = sqrt(pow(x - ventSymbolX, 2) + pow(y - ventSymbolY, 2));
  if (distanceToVent < ventTouchRadius) {
    Serial.println("=== VENTILATOR PRITISNJEN ===");
    showVentilationControlScreen();
    return;
  }

  int circleRadius = 70;
  int leftCircleX = 90;
  int rightCircleX = 390;
  int circleY = tft.height() / 2 - 30 - 6;

  int smallCircleRadius = 32;
  int smallCircleX = 240;
  int smallCircleY = circleY - 36;

  int extTempCircleX = 160;
  int extTempCircleY = circleY - 58;
  int extHumCircleX = 320;
  int extHumCircleY = circleY - 58;

  int distanceToSoilCircle = sqrt(pow(x - smallCircleX, 2) + pow(y - smallCircleY, 2));
  if (distanceToSoilCircle < smallCircleRadius + TOUCH_PADDING_CIRCLES) {
    Serial.println("=== KROG ZA VLAGO TAL PRITISNJEN ===");
    showSoilMoistureInfo();
    return;
  }

  int distanceToExtTempCircle = sqrt(pow(x - extTempCircleX, 2) + pow(y - extTempCircleY, 2));
  if (distanceToExtTempCircle < smallCircleRadius + TOUCH_PADDING_CIRCLES) {
    Serial.println("=== ZUNANJA TEMPERATURA PRITISNJENA ===");
    showExternalSensorsInfo();
    return;
  }

  int distanceToExtHumCircle = sqrt(pow(x - extHumCircleX, 2) + pow(y - extHumCircleY, 2));
  if (distanceToExtHumCircle < smallCircleRadius + TOUCH_PADDING_CIRCLES) {
    Serial.println("=== ZUNANJA VLAGA PRITISNJENA ===");
    showExternalSensorsInfo();
    return;
  }

  int distanceToLeftCircle = sqrt(pow(x - leftCircleX, 2) + pow(y - circleY, 2));
  if (distanceToLeftCircle < circleRadius + 15) {
    Serial.println("=== NOTRANJA TEMPERATURA PRITISNJENA ===");
    showInternalSensorsInfo();
    return;
  }

  int distanceToRightCircle = sqrt(pow(x - rightCircleX, 2) + pow(y - circleY, 2));
  if (distanceToRightCircle < circleRadius + 15) {
    if (x > HAMBURGER_X - 30) {
      return;
    }
    Serial.println("=== NOTRANJA VLAGA PRITISNJENA ===");
    showInternalSensorsInfo();
    return;
  }

  int controlY = extTempCircleY + smallCircleRadius + 40 - 6;

  int relayColumnWidth = 56;
  int relayButtonHeight = 16;
  int relayVerticalSpacing = 4;
  int relayColumnSpacing = 4;

  int totalRelaysWidth = 2 * relayColumnWidth + relayColumnSpacing;
  int availableSpace = rightCircleX - leftCircleX - 10;
  
  if (totalRelaysWidth > availableSpace) {
    relayColumnWidth = (availableSpace - relayColumnSpacing) / 2;
    totalRelaysWidth = 2 * relayColumnWidth + relayColumnSpacing;
  }

  int relayStartX = (tft.width() - totalRelaysWidth) / 2;
  int relayStartY = controlY - 5;
  int rightColumnX = relayStartX + relayColumnWidth + relayColumnSpacing;

  int leftColumnRelays[4] = { 0, 2, 4, 6 };
  int rightColumnRelays[4] = { 1, 3, 5, 7 };
  
  int relayTouchPadding = TOUCH_PADDING_RELAYS;

  for (int i = 0; i < 4; i++) {
    int buttonY = relayStartY + i * (relayButtonHeight + relayVerticalSpacing);
    
    int touchLeft = relayStartX - relayTouchPadding;
    int touchRight = relayStartX + relayColumnWidth + relayTouchPadding;
    int touchTop = buttonY - relayTouchPadding;
    int touchBottom = buttonY + relayButtonHeight + relayTouchPadding;

    if (x >= touchLeft && x <= touchRight && y >= touchTop && y <= touchBottom) {
      int relayIndex = leftColumnRelays[i];
      if (relayControlEnabled) {
        Serial.printf("=== RELE %d PRITISNJEN ===\n", relayIndex);
        
        tft.fillRoundRect(relayStartX, buttonY, relayColumnWidth, relayButtonHeight, 3, rgbTo565(255, 255, 0));
        delay(50);
        
        toggleRelay(relayIndex);
        updateHomeScreenRelays();
      }
      return;
    }
  }

  for (int i = 0; i < 4; i++) {
    int buttonY = relayStartY + i * (relayButtonHeight + relayVerticalSpacing);
    
    int touchLeft = rightColumnX - relayTouchPadding;
    int touchRight = rightColumnX + relayColumnWidth + relayTouchPadding;
    int touchTop = buttonY - relayTouchPadding;
    int touchBottom = buttonY + relayButtonHeight + relayTouchPadding;

    if (x >= touchLeft && x <= touchRight && y >= touchTop && y <= touchBottom) {
      int relayIndex = rightColumnRelays[i];
      if (relayControlEnabled) {
        Serial.printf("=== RELE %d PRITISNJEN ===\n", relayIndex);
        
        tft.fillRoundRect(rightColumnX, buttonY, relayColumnWidth, relayButtonHeight, 3, rgbTo565(255, 255, 0));
        delay(50);
        
        toggleRelay(relayIndex);
        updateHomeScreenRelays();
      }
      return;
    }
  }

  int progressBarHeight = 20;
  int progressBarWidth = tft.width() - 20;
  int progressBarX = (tft.width() - progressBarWidth) / 2;
  int lightBarY = 210;
  
  if (x >= progressBarX - 10 && x <= progressBarX + progressBarWidth + 10 &&
      y >= lightBarY - 10 && y <= lightBarY + progressBarHeight + 10) {
    Serial.println("=== PROGRESS BAR SVETLOBE PRITISNJEN ===");
    showInternalSensorsInfo();
    return;
  }

  int calcBarY = 238;
  if (x >= progressBarX - 10 && x <= progressBarX + progressBarWidth + 10 &&
      y >= calcBarY - 10 && y <= calcBarY + progressBarHeight + 10) {
    Serial.println("=== PROGRESS BAR IZRAČUNANE POZICIJE PRITISNJEN ===");
    showShadeControlScreen();
    return;
  }

  int actualBarY = 266;
  if (x >= progressBarX - 10 && x <= progressBarX + progressBarWidth + 10 &&
      y >= actualBarY - 10 && y <= actualBarY + progressBarHeight + 10) {
    Serial.println("=== PROGRESS BAR DEJANSKE POZICIJE PRITISNJEN ===");
    showShadeControlScreen();
    return;
  }

  int module4ProgressBarY = actualBarY + progressBarHeight + 15;
  int module4BoxHeight = 65;
  int module4BoxWidth = 440;
  int module4BoxX = (tft.width() - module4BoxWidth) / 2;
  
  int detailButtonX = module4BoxX + 340;
  int detailButtonY = module4ProgressBarY + 38;
  int detailButtonWidth = 90;
  int detailButtonHeight = 24;
  
  if (x >= detailButtonX && x <= detailButtonX + detailButtonWidth &&
      y >= detailButtonY && y <= detailButtonY + detailButtonHeight) {
    Serial.println("=== DETALJI MODULA 4 PRITISNJENI ===");
    showModule4Info();
    return;
  }

  int warningBarY = 288;
  int warningBarHeight = 32;
  
  if (warnings.soilWarning || warnings.tempWarning || warnings.humWarning) {
    if (x >= 10 && x <= tft.width() - 10 && 
        y >= warningBarY && y <= warningBarY + warningBarHeight) {
      Serial.println("=== OPOZORILNA VRSTICA PRITISNJENA ===");
      
      String warningDetails = "";
      if (warnings.soilWarning) {
        warningDetails += "Vlaga tal: " + String(warnings.soilValue, 0) + "%\n";
      }
      if (warnings.tempWarning) {
        warningDetails += "Temperatura: " + String(warnings.tempValue, 1) + "°C\n";
      }
      if (warnings.humWarning) {
        warningDetails += "Vlaga: " + String(warnings.humValue, 1) + "%";
      }
      
      showTemporaryMessage(warningDetails, WARNING_COLOR, 2000);
      return;
    }
  }

  if (x > tft.width() - 60 && y < 60) {
    Serial.println("=== HITRI DOSTOP DO NASTAVITEV ===");
    showTempHumControlScreen();
    return;
  }

  if (x < 60 && y < 60) {
    Serial.println("=== HITRI DOSTOP DO MODULOV ===");
    String moduleStatus = "";
    if (module1Active || module2Active || module3Active || module4Active) {
      moduleStatus = "M1: " + String(module1Active ? "✓" : "✗") + 
                    "  M2: " + String(module2Active ? "✓" : "✗") + 
                    "  M3: " + String(module3Active ? "✓" : "✗") +
                    "  M4: " + String(module4Active ? "✓" : "✗");
    } else {
      moduleStatus = "Vsi moduli nedosegljivi";
    }
    showTemporaryMessage(moduleStatus, rgbTo565(100, 200, 255), 1500);
    return;
  }
}

void animateHamburgerMenu() {
  int originalX = HAMBURGER_X;
  int originalY = HAMBURGER_Y;
  int size = HAMBURGER_SIZE;
  
  tft.fillRect(originalX - 10, originalY - 10, size + 20, 3 * (3 + 5) - 5 + 20, ST77XX_BLACK);
  
  for (int step = 0; step < 2; step++) {
    for (int j = 0; j < 3; j++) {
      int barY = originalY + j * (3 + 5) + step * 2;
      int barWidth = size - step * 2;
      int barX = originalX + step;
      
      if (barWidth > 15) {
        tft.fillRoundRect(barX, barY, barWidth, 3, 2, rgbTo565(255, 255, 100));
      }
    }
    delay(30);
  }
  
  tft.fillRect(originalX - 10, originalY - 10, size + 20, 3 * (3 + 5) - 5 + 20, ST77XX_BLACK);
  drawHamburgerMenu(originalX, originalY, size);
}

void showTempHumControlScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(0, 200, 255));
  tft.setCursor(180, 35);
  tft.println("NADZOR KLIMA");

  int frameY = 50;
  int frameHeight = 200;
  tft.drawRoundRect(20, frameY, 440, frameHeight, 10, rgbTo565(0, 150, 255));
  tft.fillRoundRect(21, frameY + 1, 438, frameHeight - 1, 10, rgbTo565(20, 40, 70));

  tft.setTextSize(1);

  int leftColumnX = 40;
  int rightColumnX = 260;
  int yOffset = frameY + 20;
  int lineHeight = 20;

  tft.setCursor(leftColumnX, yOffset);
  tft.setTextColor(TEMP_COLOR);
  tft.println("TEMPERATURA");

  tft.setCursor(leftColumnX, yOffset + lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Trenutna: ");
  tft.setTextColor(TEMP_COLOR);
  tft.printf("%.1f °C", internalTemperature);

  tft.setCursor(leftColumnX, yOffset + 2 * lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Min: ");
  tft.setTextColor(rgbTo565(100, 100, 255));
  tft.printf("%.1f °C", targetTempMin);

  int buttonWidth = 80;
  int buttonHeight = 32;
  int buttonSpacing = 16;

  drawNormalButton(leftColumnX, yOffset + 3 * lineHeight - 6, buttonWidth, buttonHeight,
                 rgbTo565(100, 100, 255), "-0.5");
  drawNormalButton(leftColumnX + buttonWidth + buttonSpacing, yOffset + 3 * lineHeight - 6,
                             buttonWidth, buttonHeight, rgbTo565(100, 100, 255), "+0.5");

  tft.setCursor(leftColumnX, yOffset + 5 * lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Max: ");
  tft.setTextColor(TOO_HIGH_COLOR);
  tft.printf("%.1f °C", targetTempMax);

  drawNormalButton(leftColumnX, yOffset + 5 * lineHeight + 16, buttonWidth, buttonHeight,
                             TOO_HIGH_COLOR, "-0.5");
  drawNormalButton(leftColumnX + buttonWidth + buttonSpacing, yOffset + 5 * lineHeight + 16,
                             buttonWidth, buttonHeight, TOO_HIGH_COLOR, "+0.5");

  tft.setCursor(rightColumnX, yOffset);
  tft.setTextColor(HUMIDITY_COLOR);
  tft.println("VLAGA");

  tft.setCursor(rightColumnX, yOffset + lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Trenutna: ");
  tft.setTextColor(HUMIDITY_COLOR);
  tft.printf("%.1f %%", internalHumidity);

  tft.setCursor(rightColumnX, yOffset + 2 * lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Min: ");
  tft.setTextColor(rgbTo565(100, 100, 255));
  tft.printf("%.1f %%", targetHumMin);

  drawNormalButton(rightColumnX, yOffset + 3 * lineHeight - 6, buttonWidth, buttonHeight,
                             rgbTo565(100, 100, 255), "-1");
  drawNormalButton(rightColumnX + buttonWidth + buttonSpacing, yOffset + 3 * lineHeight - 6,
                             buttonWidth, buttonHeight, rgbTo565(100, 100, 255), "+1");

  tft.setCursor(rightColumnX, yOffset + 5 * lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Max: ");
  tft.setTextColor(TOO_HIGH_COLOR);
  tft.printf("%.1f %%", targetHumMax);

  drawNormalButton(rightColumnX, yOffset + 5 * lineHeight + 16, buttonWidth, buttonHeight,
                             TOO_HIGH_COLOR, "-1");
  drawNormalButton(rightColumnX + buttonWidth + buttonSpacing, yOffset + 5 * lineHeight + 16,
                             buttonWidth, buttonHeight, TOO_HIGH_COLOR, "+1");

  int statusY = yOffset + 6 * lineHeight + 50;

  tft.setCursor(leftColumnX, statusY);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Nadzor: ");
  tft.setTextColor(autoControlEnabled ? NORMAL_COLOR : rgbTo565(200, 200, 200));
  tft.println(autoControlEnabled ? "VKLOPLJEN" : "IZKLOPLJEN");

  tft.setCursor(rightColumnX, statusY);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Aktivni: ");

  int activeRelays = 0;
  for (int i = 0; i < 4; i++) {
    if (relayStates[i]) activeRelays++;
  }

  if (relayControlEnabled) {
    tft.setTextColor(activeRelays > 0 ? RELAY_ON_COLOR : RELAY_OFF_COLOR);
    tft.printf("%d/4", activeRelays);
  } else {
    tft.setTextColor(RELAY_DISABLED_COLOR);
    tft.print("ONEMOGOCENI");
  }

  int bottomButtonY = 275;
  int bottomButtonWidth = 120;
  int bottomButtonHeight = 40;
  int buttonSpacingX = 20;
  int totalButtonWidth = 3 * bottomButtonWidth + 2 * buttonSpacingX;
  int startX = (tft.width() - totalButtonWidth) / 2;

  auto drawCenteredButton = [&](int x, int y, int w, int h, uint16_t color, const char* label) {
    tft.fillRoundRect(x + 2, y + 2, w, h, 8, rgbTo565(30, 30, 50));

    tft.fillRoundRect(x, y, w, h, 8, color);
    tft.drawRoundRect(x, y, w, h, 8, blendColor(color, ST77XX_WHITE, 70));

    tft.setTextSize(1);
    int16_t textX, textY;
    uint16_t textW, textH;
    tft.getTextBounds(label, 0, 0, &textX, &textY, &textW, &textH);

    int textPosX = x + (w - textW) / 2 - textX;
    int textPosY = y + (h - textH) / 2 - textY;

    tft.setCursor(textPosX, textPosY);
    tft.setTextColor(ST77XX_WHITE);
    tft.print(label);
  };

  drawCenteredButton(startX, bottomButtonY, bottomButtonWidth, bottomButtonHeight,
                     rgbTo565(76, 175, 80), "SHRANI");

  drawCenteredButton(startX + bottomButtonWidth + buttonSpacingX, bottomButtonY,
                     bottomButtonWidth, bottomButtonHeight,
                     rgbTo565(245, 67, 54), "NAZAJ");

  String autoLabel = autoControlEnabled ? "OFF AVTO" : "ON AVTO";
  drawCenteredButton(startX + 2 * (bottomButtonWidth + buttonSpacingX), bottomButtonY,
                     bottomButtonWidth, bottomButtonHeight,
                     autoControlEnabled ? rgbTo565(255, 100, 100) : rgbTo565(100, 255, 100),
                     autoLabel.c_str());

  currentState = STATE_TEMP_HUM_CONTROL;
}

void handleTempHumControlTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int frameY = 50;
  int leftColumnX = 40;
  int rightColumnX = 260;
  int yOffset = frameY + 20;
  int lineHeight = 20;
  int buttonWidth = 80;
  int buttonHeight = 32;
  int buttonSpacing = 16;
  int bottomButtonY = 275;

  if (x > leftColumnX && x < leftColumnX + buttonWidth && y > yOffset + 3 * lineHeight - 6 && y < yOffset + 3 * lineHeight - 6 + buttonHeight) {
    targetTempMin -= 0.5;
    if (targetTempMin < 0) targetTempMin = 0;
    markSettingsChanged();
    showTempHumControlScreen();
    return;
  }

  if (x > leftColumnX + buttonWidth + buttonSpacing && x < leftColumnX + buttonWidth + buttonSpacing + buttonWidth && y > yOffset + 3 * lineHeight - 6 && y < yOffset + 3 * lineHeight - 6 + buttonHeight) {
    targetTempMin += 0.5;
    if (targetTempMin > targetTempMax) targetTempMin = targetTempMax;
    markSettingsChanged();
    showTempHumControlScreen();
    return;
  }

  if (x > leftColumnX && x < leftColumnX + buttonWidth && y > yOffset + 5 * lineHeight + 16 && y < yOffset + 5 * lineHeight + 16 + buttonHeight) {
    targetTempMax -= 0.5;
    if (targetTempMax < targetTempMin) targetTempMax = targetTempMin;
    markSettingsChanged();
    showTempHumControlScreen();
    return;
  }

  if (x > leftColumnX + buttonWidth + buttonSpacing && x < leftColumnX + buttonWidth + buttonSpacing + buttonWidth && y > yOffset + 5 * lineHeight + 16 && y < yOffset + 5 * lineHeight + 16 + buttonHeight) {
    targetTempMax += 0.5;
    markSettingsChanged();
    showTempHumControlScreen();
    return;
  }

  if (x > rightColumnX && x < rightColumnX + buttonWidth && y > yOffset + 3 * lineHeight - 6 && y < yOffset + 3 * lineHeight - 6 + buttonHeight) {
    targetHumMin -= 1.0;
    if (targetHumMin < 0) targetHumMin = 0;
    markSettingsChanged();
    showTempHumControlScreen();
    return;
  }

  if (x > rightColumnX + buttonWidth + buttonSpacing && x < rightColumnX + buttonWidth + buttonSpacing + buttonWidth && y > yOffset + 3 * lineHeight - 6 && y < yOffset + 3 * lineHeight - 6 + buttonHeight) {
    targetHumMin += 1.0;
    if (targetHumMin > targetHumMax) targetHumMin = targetHumMax;
    markSettingsChanged();
    showTempHumControlScreen();
    return;
  }

  if (x > rightColumnX && x < rightColumnX + buttonWidth && y > yOffset + 5 * lineHeight + 16 && y < yOffset + 5 * lineHeight + 16 + buttonHeight) {
    targetHumMax -= 1.0;
    if (targetHumMax < targetHumMin) targetHumMax = targetHumMin;
    markSettingsChanged();
    showTempHumControlScreen();
    return;
  }

  if (x > rightColumnX + buttonWidth + buttonSpacing && x < rightColumnX + buttonWidth + buttonSpacing + buttonWidth && y > yOffset + 5 * lineHeight + 16 && y < yOffset + 5 * lineHeight + 16 + buttonHeight) {
    targetHumMax += 1.0;
    markSettingsChanged();
    showTempHumControlScreen();
    return;
  }

  int totalButtonWidth = 3 * 120 + 2 * 20;
  int startX = (tft.width() - totalButtonWidth) / 2;

  if (x > startX && x < startX + 120 && y > bottomButtonY && y < bottomButtonY + 40) {
    saveAllSettings();
    showTempHumControlScreen();
    return;
  }

  if (x > startX + 120 + 20 && x < startX + 120 + 20 + 120 && y > bottomButtonY && y < bottomButtonY + 40) {
    showHomeScreen();
    return;
  }

  if (x > startX + 2 * (120 + 20) && x < startX + 2 * (120 + 20) + 120 && y > bottomButtonY && y < bottomButtonY + 40) {
    autoControlEnabled = !autoControlEnabled;
    markSettingsChanged();
    showTempHumControlScreen();
    return;
  }
}

void initializeRelays() {
  Serial.println("Inicializacija relejev...");

  if (!mcpInitialized) {
    Serial.println("MCP23017 ni inicializiran! Releji ne morejo biti nastavljeni.");
    return;
  }

  for (int i = 0; i < RELAY_COUNT; i++) {
    mcp.pinMode(RELAY_START_PIN + i, OUTPUT);

    mcp.digitalWrite(RELAY_START_PIN + i, HIGH);
    relayStates[i] = false;
  }
}

void loadRelayStates() {
  preferences.begin("system-settings", true);

  for (int i = 0; i < RELAY_COUNT; i++) {
    bool savedState = preferences.getBool(("relay" + String(i)).c_str(), false);
    if (savedState != relayStates[i]) {
      setRelay(i, savedState);
    }
  }

  preferences.end();
}

void setRelay(int relayNum, bool state) {
  if (relayNum < 0 || relayNum >= RELAY_COUNT || !mcpInitialized) {
    Serial.printf("Napaka: Rele %d ni veljaven ali MCP ni inicializiran!\n", relayNum);
    return;
  }

  if (relayStates[relayNum] == state) {
    return;
  }

  if (relayControlEnabled) {
    mcp.digitalWrite(RELAY_START_PIN + relayNum, state ? LOW : HIGH);
    
    relayStates[relayNum] = state;
    
    String relayNames[] = {"GRETJE", "HLAJENJE", "VLAŽENJE", "SUŠENJE", 
                           "R5", "R6", "R7", "R8", "VENTILATOR"};
    String name = (relayNum < 9) ? relayNames[relayNum] : "Rele " + String(relayNum);
    Serial.printf("RELE %d (%s): %s\n", relayNum, name.c_str(), state ? "VKLOP" : "IZKLOP");

    if (currentState == STATE_HOME_SCREEN) {
      updateHomeScreenRelays();
    }

    markSettingsChanged();
  } else {
    Serial.println("OPOZORILO: Krmiljenje relejev je onemogočeno!");
  }
}

void updateHomeScreenRelays() {
    if (currentState != STATE_HOME_SCREEN) return;
    
    int leftCircleX = 90;
    int rightCircleX = 390;
    int circleY = tft.height() / 2 - 30 - 6;
    int smallCircleRadius = 32;
    int extTempCircleX = 160;
    int extTempCircleY = circleY - 58;
    
    int controlY = extTempCircleY + smallCircleRadius + 40 - 6;
    
    int relayColumnWidth = 56;
    int relayButtonHeight = 16;
    int relayVerticalSpacing = 4;
    int relayColumnSpacing = 4;
    
    int totalRelaysWidth = 2 * relayColumnWidth + relayColumnSpacing;
    int availableSpace = rightCircleX - leftCircleX - 10;
    if (totalRelaysWidth > availableSpace) {
        relayColumnWidth = (availableSpace - relayColumnSpacing) / 2;
        totalRelaysWidth = 2 * relayColumnWidth + relayColumnSpacing;
    }
    
    int relayStartX = (tft.width() - totalRelaysWidth) / 2;
    int relayStartY = controlY - 5;
    int rightColumnX = relayStartX + relayColumnWidth + relayColumnSpacing;
    
    int leftColumnRelays[4] = { 0, 2, LIGHTING_RELAY_1, 6 };
    String leftLabels[4] = { "GRET", "VLAZ", "CAS", "R7" };
    
    int rightColumnRelays[4] = { 1, 3, LIGHTING_RELAY_2, 7 };
    String rightLabels[4] = { "HLAJ", "SUS", "AVTO", "R8" };
    
    tft.setFont();
    tft.setTextSize(1);
    
    for (int i = 0; i < 4; i++) {
        int relayIndex = leftColumnRelays[i];
        int buttonY = relayStartY + i * (relayButtonHeight + relayVerticalSpacing);
        
        uint16_t relayColor = relayStates[relayIndex] ? RELAY_ON_COLOR : RELAY_OFF_COLOR;
        if (!relayControlEnabled) relayColor = RELAY_DISABLED_COLOR;
        
        tft.fillRect(relayStartX, buttonY, relayColumnWidth, relayButtonHeight, ST77XX_BLACK);
        
        tft.fillRoundRect(relayStartX, buttonY, relayColumnWidth, relayButtonHeight, 3, relayColor);
        tft.drawRoundRect(relayStartX, buttonY, relayColumnWidth, relayButtonHeight, 3, ST77XX_WHITE);
        
        if (relayColor == RELAY_ON_COLOR) {
            tft.setTextColor(ST77XX_BLACK);
        } else if (relayColor == RELAY_OFF_COLOR) {
            tft.setTextColor(ST77XX_WHITE);
        } else {
            tft.setTextColor(rgbTo565(200, 200, 200));
        }
        
        String relayLabel = leftLabels[i];
        int16_t x1, y1;
        uint16_t textWidth, textHeight;
        tft.getTextBounds(relayLabel, 0, 0, &x1, &y1, &textWidth, &textHeight);
        int textX = relayStartX + (relayColumnWidth - textWidth) / 2 - x1;
        int textY = buttonY + (relayButtonHeight - textHeight) / 2 - y1;
        tft.setCursor(textX, textY);
        tft.print(relayLabel);
    }
    
    for (int i = 0; i < 4; i++) {
        int relayIndex = rightColumnRelays[i];
        int buttonY = relayStartY + i * (relayButtonHeight + relayVerticalSpacing);
        
        uint16_t relayColor = relayStates[relayIndex] ? RELAY_ON_COLOR : RELAY_OFF_COLOR;
        if (!relayControlEnabled) relayColor = RELAY_DISABLED_COLOR;
        
        tft.fillRect(rightColumnX, buttonY, relayColumnWidth, relayButtonHeight, ST77XX_BLACK);
        
        tft.fillRoundRect(rightColumnX, buttonY, relayColumnWidth, relayButtonHeight, 3, relayColor);
        tft.drawRoundRect(rightColumnX, buttonY, relayColumnWidth, relayButtonHeight, 3, ST77XX_WHITE);
        
        if (relayColor == RELAY_ON_COLOR) {
            tft.setTextColor(ST77XX_BLACK);
        } else if (relayColor == RELAY_OFF_COLOR) {
            tft.setTextColor(ST77XX_WHITE);
        } else {
            tft.setTextColor(rgbTo565(200, 200, 200));
        }
        
        String relayLabel = rightLabels[i];
        int16_t x1, y1;
        uint16_t textWidth, textHeight;
        tft.getTextBounds(relayLabel, 0, 0, &x1, &y1, &textWidth, &textHeight);
        int textX = rightColumnX + (relayColumnWidth - textWidth) / 2 - x1;
        int textY = buttonY + (relayButtonHeight - textHeight) / 2 - y1;
        tft.setCursor(textX, textY);
        tft.print(relayLabel);
    }
    
    for (int i = 0; i < RELAY_COUNT; i++) {
        lastDrawnRelays[i] = relayStates[i];
    }
}

void toggleRelay(int relayNum) {
  if (relayNum < 0 || relayNum >= RELAY_COUNT) return;

  bool newState = !relayStates[relayNum];
  setRelay(relayNum, newState);
}

void setAllRelays(bool state) {
  for (int i = 0; i < RELAY_COUNT; i++) {
    setRelay(i, state);
  }
}

void IRAM_ATTR pulseCounter1() {
  pulseCount1++;
}

void IRAM_ATTR pulseCounter2() {
  pulseCount2++;
}

void IRAM_ATTR pulseCounter3() {
  pulseCount3++;
}

void initializeFlowSensors() {
  Serial.println("Inicializacija flow senzorjev YF-S201...");

  if (FLOW_SENSOR_1_PIN >= 0 && FLOW_SENSOR_1_PIN < 50) {
    pinMode(FLOW_SENSOR_1_PIN, INPUT_PULLUP);
    attachInterrupt(digitalPinToInterrupt(FLOW_SENSOR_1_PIN), pulseCounter1, FALLING);
  }

  if (FLOW_SENSOR_2_PIN >= 0 && FLOW_SENSOR_2_PIN < 50) {
    pinMode(FLOW_SENSOR_2_PIN, INPUT_PULLUP);
    attachInterrupt(digitalPinToInterrupt(FLOW_SENSOR_2_PIN), pulseCounter2, FALLING);
  }

  if (FLOW_SENSOR_3_PIN >= 0 && FLOW_SENSOR_3_PIN < 50) {
    pinMode(FLOW_SENSOR_3_PIN, INPUT_PULLUP);
    attachInterrupt(digitalPinToInterrupt(FLOW_SENSOR_3_PIN), pulseCounter3, FALLING);
  }

  oldTime = millis();
  lastFlowUpdate = millis();
}

void updateFlowSensors() {
  unsigned long currentTimeMillis = millis();

  if (currentTimeMillis - lastFlowUpdate > FLOW_UPDATE_INTERVAL) {
    float timeInSeconds = (currentTimeMillis - oldTime) / 1000.0;

    if (timeInSeconds > 0) {
      flowRate1 = (pulseCount1 / PULSES_PER_LITER) / (timeInSeconds / 60.0);
      flowRate2 = (pulseCount2 / PULSES_PER_LITER) / (timeInSeconds / 60.0);
      flowRate3 = (pulseCount3 / PULSES_PER_LITER) / (timeInSeconds / 60.0);

      totalFlow1 += (pulseCount1 / PULSES_PER_LITER);
      totalFlow2 += (pulseCount2 / PULSES_PER_LITER);
      totalFlow3 += (pulseCount3 / PULSES_PER_LITER);

      pulseCount1 = 0;
      pulseCount2 = 0;
      pulseCount3 = 0;

      oldTime = currentTimeMillis;
    }

    lastFlowUpdate = currentTimeMillis;
  }
}

void resetFlowTotals() {
  totalFlow1 = 0;
  totalFlow2 = 0;
  totalFlow3 = 0;
}

void initializeMotor() {
  Serial.println("Inicializacija motorja za sencenje na modulu 3...");
}

void calculateShadePosition() {
  if (shadeAutoControl) {
    if (ldrInternalLux <= shadeMinLux) {
      shadeCalculatedPosition = 0;
      Serial.printf("🌑 NOTRANJA SVETLOBA: %.0f lx (pod min %.0f) → ODPRI (0%%)\n", 
                    ldrInternalLux, shadeMinLux);
    } 
    else if (ldrInternalLux >= shadeMaxLux) {
      shadeCalculatedPosition = 100;
      Serial.printf("☀️ NOTRANJA SVETLOBA: %.0f lx (nad max %.0f) → ZAPRI (100%%)\n", 
                    ldrInternalLux, shadeMaxLux);
    } 
    else {
      shadeCalculatedPosition = map(ldrInternalLux, shadeMinLux, shadeMaxLux, 0, 100);
      shadeCalculatedPosition = constrain(shadeCalculatedPosition, 0, 100);
      Serial.printf("🌤️ NOTRANJA SVETLOBA: %.0f lx (%.0f-%.0f) → POZICIJA: %d%%\n", 
                    ldrInternalLux, shadeMinLux, shadeMaxLux, shadeCalculatedPosition);
    }
  }
}

void updateMotorPosition() {
  unsigned long currentTime = millis();
  if (currentTime - lastShadeUpdate > SHADE_UPDATE_INTERVAL) {
    calculateShadePosition();
    lastShadeUpdate = currentTime;
  }
}

void setMotorPosition(int position) {
  position = constrain(position, 0, 100);
  shadeActualPosition = position;

  moveShadeTo(position);
}

void scanI2CDevices() {
  Serial.println("\n=== I2C SKENIRANJE ===");

  byte error, address;
  int nDevices = 0;

  delay(250);

  for (address = 1; address < 127; address++) {
    Wire.beginTransmission(address);
    error = Wire.endTransmission();

    if (error == 0) {
      Serial.printf("I2C naprava najdena na naslovu 0x%02X", address);

      if (address == 0x20 || address == 0x21) {
        Serial.print(" (MCP23017)");
      } else if (address == 0x68) {
        Serial.print(" (DS3231)");
      }

      Serial.println();
      nDevices++;
    } else if (error == 4) {
      Serial.printf("Napaka na naslovu 0x%02X\n", address);
    }

    delay(10);
  }

  if (nDevices == 0) {
    Serial.println("Ni najdenih I2C naprav!");
  } else {
    Serial.printf("Skupaj najdenih I2C naprav: %d\n", nDevices);
  }

  Serial.println("========================\n");
}

void updateSoilMoisture() {
  unsigned long currentTimeMillis = millis();

  if (currentTimeMillis - lastSoilUpdate > SOIL_UPDATE_INTERVAL) {
    // Shrani v 30-dnevni graf
    if (currentTimeMillis - lastScreenHistoryUpdate > SCREEN_HISTORY_INTERVAL) {
      screenSoilHistory[screenHistoryIndex] = soilMoisturePercent;
      screenHistoryIndex = (screenHistoryIndex + 1) % SCREEN_HISTORY_SIZE;
      lastScreenHistoryUpdate = currentTimeMillis;
    }
    
    // Letni arhiv
    if (rtcInitialized) {
      DateTime now = rtc.now();
      unsigned long today = now.year() * 10000 + now.month() * 100 + now.day();
      
      if (today != currentDay) {
        if (dailyCount > 0) {
          yearArchive[archiveIndex].date = currentDay;
          yearArchive[archiveIndex].avgMoisture = dailySum / dailyCount;
          yearArchive[archiveIndex].minMoisture = dailyMin;
          yearArchive[archiveIndex].maxMoisture = dailyMax;
          yearArchive[archiveIndex].samples = dailyCount;
          
          archiveIndex = (archiveIndex + 1) % ARCHIVE_HISTORY_SIZE;
          
          if (archiveIndex % 7 == 0 || archiveIndex == 0) {
            saveYearArchiveToSD();
          }
        }
        
        currentDay = today;
        dailySum = 0;
        dailyMin = 100;
        dailyMax = 0;
        dailyCount = 0;
      }
      
      dailySum += soilMoisturePercent;
      dailyCount++;
      if (soilMoisturePercent < dailyMin) dailyMin = soilMoisturePercent;
      if (soilMoisturePercent > dailyMax) dailyMax = soilMoisturePercent;
    }

    lastSoilUpdate = currentTimeMillis;
  }
}

void saveYearArchiveToSD() {
  if (!sdInitialized || !useSDCard) return;
  
  digitalWrite(TFT_CS, HIGH);
  delay(10);
  
  File archiveFile = SD.open("/soil_year_archive.csv", FILE_WRITE);
  if (!archiveFile) {
    digitalWrite(TFT_CS, LOW);
    return;
  }
  
  archiveFile.println("Datum,Povprecje,Minimum,Maksimum,Vzorci");
  
  int validCount = 0;
  
  int startIdx = 0;
  for (int i = 0; i < ARCHIVE_HISTORY_SIZE; i++) {
    if (yearArchive[i].samples > 0) {
      startIdx = i;
      break;
    }
  }
  
  for (int i = 0; i < ARCHIVE_HISTORY_SIZE; i++) {
    int idx = (startIdx + i) % ARCHIVE_HISTORY_SIZE;
    if (yearArchive[idx].samples > 0) {
      archiveFile.printf("%lu,%.1f,%.1f,%.1f,%d\n",
                        yearArchive[idx].date,
                        yearArchive[idx].avgMoisture,
                        yearArchive[idx].minMoisture,
                        yearArchive[idx].maxMoisture,
                        yearArchive[idx].samples);
      validCount++;
    }
  }
  
  archiveFile.close();
  digitalWrite(TFT_CS, LOW);
}

void loadYearArchiveFromSD() {
  if (!sdInitialized || !useSDCard) return;
  if (!SD.exists("/soil_year_archive.csv")) return;
  
  digitalWrite(TFT_CS, HIGH);
  delay(10);
  
  File archiveFile = SD.open("/soil_year_archive.csv", FILE_READ);
  if (!archiveFile) {
    digitalWrite(TFT_CS, LOW);
    return;
  }
  
  archiveFile.readStringUntil('\n');
  
  for (int i = 0; i < ARCHIVE_HISTORY_SIZE; i++) {
    yearArchive[i].samples = 0;
  }
  
  archiveIndex = 0;
  int loadedCount = 0;
  
  while (archiveFile.available() && loadedCount < ARCHIVE_HISTORY_SIZE) {
    String line = archiveFile.readStringUntil('\n');
    line.trim();
    if (line.length() == 0) continue;
    
    int commas[5], commaCount = 0;
    for (int i = 0; i < line.length(); i++) {
      if (line.charAt(i) == ',') commas[commaCount++] = i;
    }
    
    if (commaCount >= 4) {
      yearArchive[archiveIndex].date = line.substring(0, commas[0]).toInt();
      yearArchive[archiveIndex].avgMoisture = line.substring(commas[0]+1, commas[1]).toFloat();
      yearArchive[archiveIndex].minMoisture = line.substring(commas[1]+1, commas[2]).toFloat();
      yearArchive[archiveIndex].maxMoisture = line.substring(commas[2]+1, commas[3]).toFloat();
      yearArchive[archiveIndex].samples = line.substring(commas[3]+1).toInt();
      archiveIndex = (archiveIndex + 1) % ARCHIVE_HISTORY_SIZE;
      loadedCount++;
    }
  }
  
  archiveFile.close();
  digitalWrite(TFT_CS, LOW);
}

void saveAllGraphsToSD() {
    if (!sdInitialized || !useSDCard) return;
    
    digitalWrite(TFT_CS, HIGH);
    delay(10);
    
    File graph48File = SD.open("/graph_48h.csv", FILE_WRITE);
    if (graph48File) {
        graph48File.println("Type,Index,Value1,Value2,Value3,Timestamp");
        
        for (int i = 0; i < GRAPH_HISTORY_SIZE; i++) {
            if (!isnan(tempHistory48h[i])) {
                graph48File.printf("INT,%d,%.1f,%.1f,%.1f,%lu\n", 
                    i, tempHistory48h[i], humHistory48h[i], luxHistory48h[i], timeStamps48h[i]);
            }
        }
        
        for (int i = 0; i < EXTERNAL_GRAPH_HISTORY_SIZE; i++) {
            if (!isnan(extTempHistory48h[i])) {
                graph48File.printf("EXT,%d,%.1f,%.1f,%.1f,%lu\n", 
                    i, extTempHistory48h[i], extHumHistory48h[i], extLuxHistory48h[i], extTimeStamps48h[i]);
            }
        }
        graph48File.close();
        Serial.println("✅ 48-urni graf shranjen na SD");
    }
    
    File soil30File = SD.open("/soil_30d.csv", FILE_WRITE);
    if (soil30File) {
        soil30File.println("Index,MoisturePercent,Timestamp");
        for (int i = 0; i < SCREEN_HISTORY_SIZE; i++) {
            if (screenSoilHistory[i] > 0) {
                soil30File.printf("%d,%.1f,%lu\n", i, screenSoilHistory[i], 
                    (i * SCREEN_HISTORY_INTERVAL) / 1000);
            }
        }
        soil30File.close();
        Serial.println("✅ 30-dnevna zgodovina vlage shranjena na SD");
    }
    
    digitalWrite(TFT_CS, LOW);
}

void loadAllGraphsFromSD() {
    if (!sdInitialized || !useSDCard) return;
    
    digitalWrite(TFT_CS, HIGH);
    delay(10);
    
    if (SD.exists("/soil_30d.csv")) {
        File soil30File = SD.open("/soil_30d.csv", FILE_READ);
        if (soil30File) {
            soil30File.readStringUntil('\n');
            int loadedCount = 0;
            while (soil30File.available() && loadedCount < SCREEN_HISTORY_SIZE) {
                String line = soil30File.readStringUntil('\n');
                line.trim();
                if (line.length() == 0) continue;
                
                int comma1 = line.indexOf(',');
                int comma2 = line.indexOf(',', comma1 + 1);
                
                if (comma1 > 0 && comma2 > 0) {
                    int idx = line.substring(0, comma1).toInt();
                    float value = line.substring(comma1 + 1, comma2).toFloat();
                    if (idx >= 0 && idx < SCREEN_HISTORY_SIZE) {
                        screenSoilHistory[idx] = value;
                        loadedCount++;
                    }
                }
            }
            screenHistoryIndex = loadedCount;
            soil30File.close();
            Serial.printf("✅ Naloženih %d meritev 30-dnevnega grafa\n", loadedCount);
        }
    }
    
    loadGraphHistoryFromFlash();
    
    digitalWrite(TFT_CS, LOW);
}

void loadGraphHistoryFromFlash() {
  Serial.println("=== NALAGANJE 48-URNE ZGODOVINE IZ FLASH ===");
  
  preferences.begin("ext-graph-data", true);
  
  extGraphHistoryIndex = preferences.getInt("extGraphIndex", 0);
  
  int loadedCount = 0;
  for (int i = 0; i < EXTERNAL_GRAPH_HISTORY_SIZE; i++) {
    extTempHistory48h[i] = preferences.getFloat(("extTemp" + String(i)).c_str(), NAN);
    extHumHistory48h[i] = preferences.getFloat(("extHum" + String(i)).c_str(), NAN);
    extLuxHistory48h[i] = preferences.getFloat(("extLux" + String(i)).c_str(), NAN);
    extPressureHistory48h[i] = preferences.getFloat(("extPressure" + String(i)).c_str(), NAN);
    extTimeStamps48h[i] = preferences.getULong(("extTime" + String(i)).c_str(), 0);
    
    if (extTimeStamps48h[i] > 0) {
      loadedCount++;
    }
  }
  
  preferences.end();
  
  Serial.printf("Naloženih %d podatkov iz FLASH\n", loadedCount);
  
  preferences.begin("graph-data", true);
  graphHistoryIndex = preferences.getInt("graphIndex", 0);
  for (int i = 0; i < GRAPH_HISTORY_SIZE; i++) {
    tempHistory48h[i] = preferences.getFloat(("temp" + String(i)).c_str(), NAN);
    humHistory48h[i] = preferences.getFloat(("hum" + String(i)).c_str(), NAN);
    luxHistory48h[i] = preferences.getFloat(("lux" + String(i)).c_str(), NAN);
    timeStamps48h[i] = preferences.getULong(("time" + String(i)).c_str(), 0);
  }
  preferences.end();
  
  Serial.println("=== KONEC NALAGANJA ===");
}

void saveExternalGraphHistory() {
  if (sdInitialized && useSDCard) {
    File histFile = SD.open("/ext_history.csv", FILE_APPEND);
    if (histFile) {
      unsigned long timestamp = rtcInitialized ? rtc.now().unixtime() : millis() / 1000;

      for (int i = 0; i < EXTERNAL_GRAPH_HISTORY_SIZE; i++) {
        if (!isnan(extTempHistory48h[i]) && extTempHistory48h[i] != 0) {
          histFile.printf("%lu,ext_temp,%.1f\n", timestamp, extTempHistory48h[i]);
        }
      }
      histFile.close();
    }
  } else {
    preferences.begin("ext-graph", false);
    preferences.putInt("extGraphIdx", extGraphHistoryIndex);
  }
}

void showModule2Info() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(100, 200, 255));
  tft.setCursor(150, 30);
  tft.println("MODUL 2 - NAMAKALNI SISTEM");

  tft.setCursor(350, 30);
  tft.setTextColor(module2Active ? rgbTo565(80, 220, 100) : rgbTo565(255, 80, 80));
  tft.print("●");
  tft.setTextColor(ST77XX_WHITE);
  tft.print(module2Active ? " Aktiven" : " Nedosegljiv");

  tft.drawRoundRect(10, 40, 460, 190, 8, rgbTo565(100, 200, 255));
  tft.fillRoundRect(11, 41, 458, 188, 8, rgbTo565(20, 40, 70));

  int leftColX = 25;
  int rightColX = 245;
  int yOffset = 48;
  int lineHeight = 16;

  tft.setTextSize(1);

  if (!module2Active) {
    tft.setCursor(150, 120);
    tft.setTextColor(rgbTo565(255, 100, 100));
    tft.println("MODUL 2 NI DOSEGLJIV!");
    tft.setCursor(120, 140);
    tft.setTextColor(rgbTo565(255, 150, 50));
    tft.println("Preverite povezavo");
  } else {
    tft.setCursor(leftColX, yOffset);
    tft.setTextColor(rgbTo565(255, 200, 100));
    tft.println("PRETOK (L/min)");

    tft.setCursor(leftColX, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(255, 100, 100));
    tft.print("F1:");
    tft.setCursor(leftColX + 30, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.printf("%.2f", module2FlowRate1);

    tft.setCursor(leftColX + 90, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(100, 255, 100));
    tft.print("F2:");
    tft.setCursor(leftColX + 120, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.printf("%.2f", module2FlowRate2);

    tft.setCursor(leftColX + 180, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(100, 100, 255));
    tft.print("F3:");
    tft.setCursor(leftColX + 210, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.printf("%.2f", module2FlowRate3);

    tft.setCursor(leftColX, yOffset + 2 * lineHeight + 2);
    tft.setTextColor(rgbTo565(255, 200, 50));
    tft.print("SKUPAJ (L):");

    float totalAll = module2TotalFlow1 + module2TotalFlow2 + module2TotalFlow3;
    tft.setCursor(leftColX + 90, yOffset + 2 * lineHeight + 2);
    tft.setTextColor(rgbTo565(150, 255, 150));
    tft.printf("%.1f", totalAll);
    tft.print(" L");

    tft.setCursor(rightColX, yOffset);
    tft.setTextColor(rgbTo565(255, 200, 100));
    tft.println("RELEJI");

    tft.setCursor(rightColX, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("R1:");
    tft.setCursor(rightColX + 30, yOffset + lineHeight);
    tft.setTextColor(module2Relay1State ? rgbTo565(100, 255, 100) : rgbTo565(200, 200, 200));
    tft.println(module2Relay1State ? "ON" : "OFF");

    tft.setCursor(rightColX + 70, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("R2:");
    tft.setCursor(rightColX + 100, yOffset + lineHeight);
    tft.setTextColor(module2Relay2State ? rgbTo565(100, 255, 100) : rgbTo565(200, 200, 200));
    tft.println(module2Relay2State ? "ON" : "OFF");

    tft.setCursor(rightColX + 140, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("R3:");
    tft.setCursor(rightColX + 170, yOffset + lineHeight);
    tft.setTextColor(module2Relay3State ? rgbTo565(100, 255, 100) : rgbTo565(200, 200, 200));
    tft.println(module2Relay3State ? "ON" : "OFF");

    tft.setCursor(rightColX, yOffset + 2 * lineHeight + 2);
    tft.setTextColor(rgbTo565(255, 200, 100));
    tft.print("SISTEM");

    tft.setCursor(rightColX, yOffset + 2 * lineHeight + 18);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("Bat:");

    uint16_t battColor;
    if (module2Battery > 3.5) battColor = rgbTo565(80, 220, 100);
    else if (module2Battery > 3.2) battColor = rgbTo565(255, 200, 50);
    else battColor = rgbTo565(255, 80, 80);

    tft.setCursor(rightColX + 35, yOffset + 2 * lineHeight + 18);
    tft.setTextColor(battColor);
    tft.printf("%.2fV", module2Battery);

    tft.setCursor(rightColX, yOffset + 2 * lineHeight + 34);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("Pred:");

    unsigned long secondsAgo = (millis() - lastModule2Time) / 1000;
    tft.setCursor(rightColX + 40, yOffset + 2 * lineHeight + 34);
    if (secondsAgo < 60) {
      tft.setTextColor(rgbTo565(150, 255, 150));
      tft.printf("%lu s", secondsAgo);
    } else if (secondsAgo < 3600) {
      tft.setTextColor(rgbTo565(255, 255, 150));
      tft.printf("%lu min", secondsAgo / 60);
    } else {
      tft.setTextColor(rgbTo565(255, 150, 50));
      tft.printf("%lu h", secondsAgo / 3600);
    }

    int barY = yOffset + 5 * lineHeight + 5;

    int barWidth = 200;
    int barHeight = 8;
    int barSpacing = 12;

    tft.setTextSize(1);

    tft.setCursor(leftColX, barY - 10);
    tft.setTextColor(rgbTo565(255, 100, 100));
    tft.print("Flow 1");

    int barWidth1 = map(constrain(module2FlowRate1, 0, 10), 0, 10, 0, barWidth);
    tft.fillRect(leftColX, barY, barWidth, barHeight, rgbTo565(40, 40, 40));
    tft.fillRect(leftColX, barY, barWidth1, barHeight, rgbTo565(255, 100, 100));
    tft.drawRect(leftColX, barY, barWidth, barHeight, ST77XX_WHITE);

    tft.setCursor(leftColX + barWidth + 5, barY - 2);
    tft.setTextColor(rgbTo565(255, 100, 100));
    tft.printf("%.1f L", module2TotalFlow1);

    barY += barHeight + barSpacing;

    tft.setCursor(leftColX, barY - 10);
    tft.setTextColor(rgbTo565(100, 255, 100));
    tft.print("Flow 2");

    int barWidth2 = map(constrain(module2FlowRate2, 0, 10), 0, 10, 0, barWidth);
    tft.fillRect(leftColX, barY, barWidth, barHeight, rgbTo565(40, 40, 40));
    tft.fillRect(leftColX, barY, barWidth2, barHeight, rgbTo565(100, 255, 100));
    tft.drawRect(leftColX, barY, barWidth, barHeight, ST77XX_WHITE);

    tft.setCursor(leftColX + barWidth + 5, barY - 2);
    tft.setTextColor(rgbTo565(100, 255, 100));
    tft.printf("%.1f L", module2TotalFlow2);

    barY += barHeight + barSpacing;

    tft.setCursor(leftColX, barY - 10);
    tft.setTextColor(rgbTo565(100, 100, 255));
    tft.print("Flow 3");

    int barWidth3 = map(constrain(module2FlowRate3, 0, 10), 0, 10, 0, barWidth);
    tft.fillRect(leftColX, barY, barWidth, barHeight, rgbTo565(40, 40, 40));
    tft.fillRect(leftColX, barY, barWidth3, barHeight, rgbTo565(100, 100, 255));
    tft.drawRect(leftColX, barY, barWidth, barHeight, ST77XX_WHITE);

    tft.setCursor(leftColX + barWidth + 5, barY - 2);
    tft.setTextColor(rgbTo565(100, 100, 255));
    tft.printf("%.1f L", module2TotalFlow3);

    int buttonY = barY + barHeight + 15;

    int buttonWidth = 110;
    int buttonHeight = 30;
    int buttonSpacing = 10;

    drawMenuButton(30, buttonY, buttonWidth, buttonHeight,
               rgbTo565(66, 135, 245), "KALIBRACIJA");

    drawMenuButton(30 + buttonWidth + buttonSpacing, buttonY, buttonWidth, buttonHeight,
                              rgbTo565(76, 175, 80), "RESET");

    drawMenuButton(30 + 2 * (buttonWidth + buttonSpacing), buttonY, buttonWidth, buttonHeight,
                              rgbTo565(156, 39, 176), "GRAF");

    int buttonY2 = buttonY + buttonHeight + 8;

    drawMenuButton(100, buttonY2, buttonWidth, buttonHeight,
                              rgbTo565(245, 67, 54), "NAZAJ");

    drawMenuButton(100 + buttonWidth + buttonSpacing, buttonY2, buttonWidth, buttonHeight,
                              rgbTo565(255, 150, 0), "RELEJI");
  }

  currentState = STATE_MODULE2_INFO;
}

void handleModule2InfoTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int barY = 48 + 5 * 16 + 5;
  int barHeight = 8;
  int barSpacing = 12;

  int flow1BarY = barY;
  int flow2BarY = flow1BarY + barHeight + barSpacing;
  int flow3BarY = flow2BarY + barHeight + barSpacing;

  int buttonY = flow3BarY + barHeight + 15;
  int buttonY2 = buttonY + 30 + 8;

  if (x > 30 && x < 140 && y > buttonY && y < buttonY + 30) {
    showModule2Info();
    return;
  }

  if (x > 150 && x < 260 && y > buttonY && y < buttonY + 30) {
    sendModule2Command(2, 0, 0);

    showTemporaryMessage("Ukaz poslan!\nReset flow totals", rgbTo565(80, 220, 100), 1500);

    showModule2Info();
    return;
  }

  if (x > 270 && x < 380 && y > buttonY && y < buttonY + 30) {
    return;
  }

  if (x > 100 && x < 210 && y > buttonY2 && y < buttonY2 + 30) {
    showMainMenu();
    return;
  }

  if (x > 220 && x < 330 && y > buttonY2 && y < buttonY2 + 30) {
    showMainMenu();
    return;
  }

  int leftColX = 25;
  int barWidth = 200;

  if (x > leftColX && x < leftColX + barWidth && y > flow1BarY && y < flow1BarY + barHeight) {
    return;
  }

  if (x > leftColX && x < leftColX + barWidth && y > flow2BarY && y < flow2BarY + barHeight) {
    return;
  }

  if (x > leftColX && x < leftColX + barWidth && y > flow3BarY && y < flow3BarY + barHeight) {
    return;
  }

  int rightColX = 245;
  int yOffset = 48;
  int lineHeight = 16;

  if (x > rightColX && x < rightColX + 60 && y > yOffset + lineHeight - 5 && y < yOffset + lineHeight + 15) {
    if (module2Active) {
      setModule2Relay(1, !module2Relay1State);
      showModule2Info();
    }
    return;
  }

  if (x > rightColX + 70 && x < rightColX + 130 && y > yOffset + lineHeight - 5 && y < yOffset + lineHeight + 15) {
    if (module2Active) {
      setModule2Relay(2, !module2Relay2State);
      showModule2Info();
    }
    return;
  }

  if (x > rightColX + 140 && x < rightColX + 200 && y > yOffset + lineHeight - 5 && y < yOffset + lineHeight + 15) {
    if (module2Active) {
      setModule2Relay(3, !module2Relay3State);
      showModule2Info();
    }
    return;
  }
}

void toggleStorageMode() {
  if (!sdInitialized) {
    if (initializeSDCard()) {
    } else {
      showTemporaryMessage("SD kartica ni najdena!\nPreverite povezavo", rgbTo565(255, 80, 80), 2000);
      return;
    }
  }

  useSDCard = !useSDCard;

  String message = "Shranjevanje: " + String(useSDCard ? "SD KARTICA" : "FLASH");
  showTemporaryMessage(message, rgbTo565(80, 220, 100), 2000);

  if (useSDCard && sdInitialized) {
    saveSettingsToSD();
  } else {
    saveAllSettings(false);
  }
}

void testSDCardWrite() {
  Serial.println("\n=== TEST PISANJA NA SD KARTICO ===");

  if (!sdInitialized) {
    Serial.println("SD kartica ni inicializirana!");
    return;
  }

  File testFile = SD.open("/test_write.txt", FILE_WRITE);
  if (testFile) {
    String testData = "Test pisanja: " + String(millis()) + "\n";
    size_t bytesWritten = testFile.print(testData);
    testFile.close();

    if (bytesWritten > 0) {
      Serial.printf("✓ Test pisanja USPESEN: %d bytes zapisanih\n", bytesWritten);

      testFile = SD.open("/test_write.txt", FILE_READ);
      if (testFile) {
        String readData = testFile.readString();
        testFile.close();
        Serial.printf("  Prebrano: %s", readData.c_str());
        Serial.println("  Preverjanje branja USPESNO");
      }

      if (SD.remove("/test_write.txt")) {
        Serial.println("  Testna datoteka izbrisana");
      }
    } else {
      Serial.println("✗ Test pisanja NEUSPESEN - 0 bytes zapisanih");
    }
  } else {
    Serial.println("✗ Test pisanja NEUSPESEN - ni mogoce odpreti datoteke");
  }

  Serial.println("=== KONEC TESTA ===\n");
}

void autoSaveSettings() {
  unsigned long currentTime = millis();

  if (settingsChangedFlag && (currentTime - lastSettingsChangeTime > 5000)) {
    try {
      if (sdInitialized && useSDCard) {
        saveSettingsToSD();
      } else {
        saveAllSettings(false);
      }
    } catch (...) {
    }

    clearSettingsChangedIndicator();
    lastAutoSaveTime = currentTime;
  }

  if (currentTime - lastAutoSaveTime > 60000) {
    try {
      if (sdInitialized && useSDCard) {
        saveSettingsToSD();
      } else {
        saveAllSettings(false);
      }
    } catch (...) {
    }
    lastAutoSaveTime = currentTime;
  }
}

void setupWatchdogForShutdown() {
  Serial.println("Nastavljam varnostno shranjevanje ob izklopu...");

  esp_sleep_enable_ext0_wakeup((gpio_num_t)GPIO_NUM_0, LOW);
}

void emergencySaveOnPowerLoss() {
    Serial.println("\n=== VARNOSTNO SHRANJEVANJE - IZPAD NAPETOSTI ===");
    
    if (sdInitialized && useSDCard) {
        saveAllGraphsToSD();
    }
    
    saveAllSettings(true);
    
    saveRelayStates();
    
    Serial.println("=== VARNOSTNO SHRANJEVANJE KONČANO ===");
}

void cleanOldGraphData() {
    if (!sdInitialized || !useSDCard) return;
    
    File graphFile = SD.open("/graph_48h.csv", FILE_READ);
    if (!graphFile) return;
    
    int lineCount = 0;
    while (graphFile.available()) {
        graphFile.readStringUntil('\n');
        lineCount++;
    }
    graphFile.close();
    
    if (lineCount > 5000) {
        SD.remove("/graph_48h_old.csv");
        SD.rename("/graph_48h.csv", "/graph_48h_old.csv");
        saveAllGraphsToSD();
        Serial.println("🔄 Stari podatki grafov arhivirani");
    }
}

void testPinsBeforeSD() {
  Serial.println("\n=== TEST PINOV PRED SD INICIALIZACIJO ===");

  int pins[] = { 35, 36, 37, 38 };
  const char* names[] = { "CS", "SCK", "MISO", "MOSI" };

  for (int i = 0; i < 4; i++) {
    pinMode(pins[i], OUTPUT);
    digitalWrite(pins[i], LOW);
    delay(10);
    digitalWrite(pins[i], HIGH);
    delay(10);
    Serial.printf("Pin %d (%s): OK\n", pins[i], names[i]);
  }

  pinMode(37, INPUT_PULLUP);
  int misoValue = digitalRead(37);
  Serial.printf("MISO pin 37 zacetna vrednost: %d\n", misoValue);

  Serial.println("=== KONEC TESTA ===\n");
}

bool initializeSDCard() {
  Serial.println("\n=== INICIALIZACIJA SD KARTICE Z NOVIMI PINI ===");
  Serial.printf("  CS: %d\n", SD_CS_PIN);
  Serial.printf("  SCK: %d\n", SD_SCK_PIN);
  Serial.printf("  MOSI: %d\n", SD_MOSI_PIN);
  Serial.printf("  MISO: %d\n", SD_MISO_PIN);

  pinMode(SD_CS_PIN, OUTPUT);
  pinMode(SD_SCK_PIN, OUTPUT);
  pinMode(SD_MOSI_PIN, OUTPUT);
  pinMode(SD_MISO_PIN, INPUT_PULLUP);

  digitalWrite(SD_CS_PIN, HIGH);
  delay(50);

  int misoValue = digitalRead(SD_MISO_PIN);
  Serial.printf("  MISO vrednost: %d (1=HIGH - kartica se ne odziva, 0=LOW - kartica se odziva)\n", misoValue);

  SPIClass* sdSPI = new SPIClass(FSPI);
  sdSPI->begin(SD_SCK_PIN, SD_MISO_PIN, SD_MOSI_PIN, SD_CS_PIN);

  digitalWrite(TFT_CS, HIGH);
  delay(10);

  bool sdOk = false;
  int speeds[] = { 400000, 200000, 100000 };

  for (int s = 0; s < 3; s++) {
    Serial.printf("Poskus %d: %d Hz\n", s + 1, speeds[s]);

    for (int attempt = 0; attempt < 3; attempt++) {
      if (SD.begin(SD_CS_PIN, *sdSPI, speeds[s])) {
        uint8_t cardType = SD.cardType();

        if (cardType != CARD_NONE) {
          Serial.println("✓ SD kartica USPESNO inicializirana!");

          uint64_t cardSize = SD.cardSize() / (1024 * 1024);
          Serial.printf("  Velikost: %llu MB\n", cardSize);

          sdInitialized = true;
          useSDCard = true;
          sdOk = true;
          break;
        }
      }
      delay(100);
    }
    if (sdOk) break;
  }

  if (!sdOk) {
    Serial.println("\n❌ SD kartica NI inicializirana!");

    delete sdSPI;
    sdInitialized = false;
    useSDCard = false;
  }

  digitalWrite(TFT_CS, LOW);
  Serial.println("=== KONEC SD INICIALIZACIJE ===\n");
  return sdInitialized;
}

void debugSDCard() {
  Serial.println("\n=== SD KARTICA DEBUG ===");

  if (!sdInitialized) {
    Serial.println("SD kartica ni inicializirana!");
    initializeSDCard();
    if (!sdInitialized) {
      return;
    }
  }

  uint8_t cardType = SD.cardType();
  Serial.printf("Tip kartice: %d - ", cardType);
  switch (cardType) {
    case CARD_NONE: Serial.println("NONE"); break;
    case CARD_MMC: Serial.println("MMC"); break;
    case CARD_SD: Serial.println("SDSC"); break;
    case CARD_SDHC: Serial.println("SDHC"); break;
    default: Serial.println("Unknown"); break;
  }

  uint64_t cardSize = SD.cardSize() / (1024 * 1024);
  uint64_t totalSize = SD.totalBytes() / (1024 * 1024);
  uint64_t usedSize = SD.usedBytes() / (1024 * 1024);

  Serial.printf("Velikost kartice: %llu MB\n", cardSize);
  Serial.printf("Skupaj prostora: %llu MB\n", totalSize);
  Serial.printf("Zasedeno: %llu MB\n", usedSize);
  Serial.printf("Prostega: %llu MB\n", totalSize - usedSize);

  listSDFiles();

  File testFile = SD.open("/debug_test.txt", FILE_WRITE);
  if (testFile) {
    String testData = "Debug test: " + String(millis());
    testFile.println(testData);
    testFile.close();
    Serial.println("Test pisanja: USPESNO");

    testFile = SD.open("/debug_test.txt", FILE_READ);
    if (testFile) {
      Serial.print("Prebrano: ");
      while (testFile.available()) {
        Serial.write(testFile.read());
      }
      testFile.close();
      Serial.println();
    }

    SD.remove("/debug_test.txt");
  } else {
    Serial.println("Test pisanja: NEUSPESNO");
  }

  Serial.println("=== KONEC DEBUG ===");
}

void createSDStructure() {
  if (!sdInitialized) {
    return;
  }

  int filesCreated = 0;
  int filesExist = 0;

  struct {
    const char* path;
    const char* header;
  } files[] = {
    { DATA_LOG_FILE, "timestamp,temp_in,hum_in,temp_out,hum_out,pressure,lux_in,lux_out,soil_moisture,flow1,flow2,flow3" },
    { HISTORY_FILE, "timestamp,type,value" },
    { SETTINGS_FILE, "=== SMART VITROGROV NASTAVITVE ===" }
  };

  for (int i = 0; i < 3; i++) {
    if (!SD.exists(files[i].path)) {
      File file = SD.open(files[i].path, FILE_WRITE);
      if (file) {
        file.println(files[i].header);
        file.close();
        filesCreated++;
      }
    } else {
      filesExist++;
    }
  }
}

void listSDFiles() {
  if (!sdInitialized) return;

  Serial.println("\n=== DATOTEKE NA SD KARTICI ===");

  File root = SD.open("/");
  if (!root) {
    return;
  }

  File file = root.openNextFile();
  int fileCount = 0;
  int dirCount = 0;

  while (file) {
    if (file.isDirectory()) {
      Serial.printf("  [DIR]  %s\n", file.name());
      dirCount++;
    } else {
      Serial.printf("  [FILE] %s (%d bytes)\n", file.name(), file.size());
      fileCount++;
    }
    file = root.openNextFile();
  }
  root.close();

  Serial.printf("Skupaj: %d datotek, %d map\n", fileCount, dirCount);
  Serial.println("===============================\n");
}

void logDataToSD() {
  if (!sdInitialized || !useSDCard) return;

  digitalWrite(TFT_CS, HIGH);
  delay(1);

  if (SD.cardType() == CARD_NONE) {
    sdInitialized = false;
    digitalWrite(TFT_CS, LOW);
    return;
  }

  File logFile = SD.open(DATA_LOG_FILE, FILE_APPEND);
  if (!logFile) {
    digitalWrite(TFT_CS, LOW);
    return;
  }

  logFile.printf("%lu,%.1f,%.1f,%.1f,%.1f\n",
                 millis() / 1000,
                 internalTemperature,
                 internalHumidity,
                 externalTemperature,
                 externalHumidity);

  logFile.close();

  digitalWrite(TFT_CS, LOW);
}

void showTemporaryMessage(String message, uint16_t color, int durationMs) {
  if (durationMs <= 0) durationMs = 3000;
  
  AppState previousState = currentState;
  
  int msgX = 80;
  int msgY = 140;
  int msgWidth = 320;
  int msgHeight = 80;
  
  tft.fillRect(msgX - 3, msgY - 3, msgWidth + 6, msgHeight + 6, ST77XX_BLACK);
  
  tft.fillRoundRect(msgX, msgY, msgWidth, msgHeight, 10, rgbTo565(20, 40, 70));
  tft.drawRoundRect(msgX, msgY, msgWidth, msgHeight, 10, rgbTo565(0, 150, 255));
  
  tft.fillRoundRect(msgX + 2, msgY + 2, msgWidth - 4, msgHeight - 4, 8, rgbTo565(20, 40, 70));
  
  tft.setTextSize(1);
  tft.setTextColor(color);
  
  int lineHeight = 16;
  int startY = msgY + 25;
  int currentY = startY;
  
  String remainingMessage = message;
  while (remainingMessage.length() > 0) {
    int newlinePos = remainingMessage.indexOf('\n');
    String line;
    
    if (newlinePos >= 0) {
      line = remainingMessage.substring(0, newlinePos);
      remainingMessage = remainingMessage.substring(newlinePos + 1);
    } else {
      line = remainingMessage;
      remainingMessage = "";
    }
    
    int16_t textX, textY;
    uint16_t textW, textH;
    tft.getTextBounds(line, 0, 0, &textX, &textY, &textW, &textH);
    
    int textPosX = msgX + (msgWidth - textW) / 2 - textX;
    
    tft.setCursor(textPosX, currentY);
    tft.println(line);
    
    currentY += lineHeight;
  }
  
  unsigned long startTime = millis();
  while (millis() - startTime < durationMs) {
    handleTouch();
    delay(10);
  }
  
  tft.fillRect(msgX - 5, msgY - 5, msgWidth + 10, msgHeight + 10, ST77XX_BLACK);
  
  if (previousState == STATE_HOME_SCREEN) {
    forceFullHomeScreenRedraw();
  } else {
    redrawCurrentScreen();
  }
}

void saveSettingsToSD() {
  if (!sdInitialized) {
    if (!initializeSDCard()) {
      return;
    }
  }

  if (!useSDCard) {
    return;
  }

  Serial.println("\n=== SHRANJEVANJE NASTAVITEV NA SD KARTICO ===");

  digitalWrite(TFT_CS, HIGH);
  delay(10);

  if (SD.cardType() == CARD_NONE) {
    sdInitialized = false;
    useSDCard = false;

    digitalWrite(TFT_CS, LOW);
    return;
  }

  if (SD.exists(SETTINGS_FILE)) {
    SD.remove(SETTINGS_FILE);
  }

  File settingsFile = SD.open(SETTINGS_FILE, FILE_WRITE);
  if (!settingsFile) {
    digitalWrite(TFT_CS, LOW);
    return;
  }

  settingsFile.println("=== SMART VITROGROV NASTAVITVE ===");
  settingsFile.print("timestamp:");
  if (rtcInitialized) {
    settingsFile.println(rtc.now().unixtime());
  } else {
    settingsFile.println(millis() / 1000);
  }
  settingsFile.println();

  settingsFile.println("[TEMPERATURA_VLAGA]");
  settingsFile.printf("temp_min:%.1f\n", targetTempMin);
  settingsFile.printf("temp_max:%.1f\n", targetTempMax);
  settingsFile.printf("hum_min:%.1f\n", targetHumMin);
  settingsFile.printf("hum_max:%.1f\n", targetHumMax);
  settingsFile.printf("auto_control:%s\n", autoControlEnabled ? "true" : "false");
  settingsFile.println();

  settingsFile.println("[SENCENJE]");
  settingsFile.printf("shade_min:%.0f\n", shadeMinLux);
  settingsFile.printf("shade_max:%.0f\n", shadeMaxLux);
  settingsFile.printf("shade_auto:%s\n", shadeAutoControl ? "true" : "false");
  settingsFile.printf("shade_position:%d\n", shadeActualPosition);
  settingsFile.println();

  settingsFile.println("[RAZSVETLJAVA_REL6]");
  settingsFile.printf("light_auto:%s\n", lightAutoMode ? "true" : "false");
  settingsFile.printf("light_manual:%s\n", lightManualOverride ? "true" : "false");
  settingsFile.printf("light_on:%.0f\n", lightOnThreshold);
  settingsFile.printf("light_off:%.0f\n", lightOffThreshold);
  settingsFile.printf("light_time_enabled:%s\n", lightTimeControlEnabled ? "true" : "false");
  settingsFile.printf("light_start:%02d:%02d\n", lightStartHour, lightStartMinute);
  settingsFile.printf("light_end:%02d:%02d\n", lightEndHour, lightEndMinute);
  settingsFile.println();

  settingsFile.println("[CASOVNA_RAZSVETLJAVA]");
  settingsFile.printf("lighting_auto:%s\n", lightingAutoMode ? "true" : "false");
  settingsFile.printf("lighting_manual:%s\n", lightingManualOverride ? "true" : "false");
  settingsFile.println();

  settingsFile.println("[CASOVNI_BLOKI]");
  for (int i = 0; i < MAX_TIME_BLOCKS; i++) {
    settingsFile.printf("block_%d_enabled:%s\n", i, timeBlocks[i].enabled ? "true" : "false");
    settingsFile.printf("block_%d_action:%s\n", i, timeBlocks[i].relayOn ? "ON" : "OFF");
    settingsFile.printf("block_%d_start:%02d:%02d\n", i,
                        timeBlocks[i].startHour, timeBlocks[i].startMinute);
    settingsFile.printf("block_%d_end:%02d:%02d\n", i,
                        timeBlocks[i].endHour, timeBlocks[i].endMinute);

    String daysStr = "";
    for (int d = 0; d < DAYS_IN_WEEK; d++) {
      if (timeBlocks[i].days[d]) {
        if (daysStr.length() > 0) daysStr += ",";
        daysStr += String(d);
      }
    }
    if (daysStr.length() == 0) daysStr = "none";
    settingsFile.printf("block_%d_days:%s\n", i, daysStr.c_str());

    settingsFile.printf("block_%d_desc:%s\n", i, timeBlocks[i].description.c_str());
  }
  settingsFile.println();

  settingsFile.println("[RELEJI]");
  for (int i = 0; i < RELAY_COUNT; i++) {
    settingsFile.printf("relay_%d:%s\n", i, relayStates[i] ? "true" : "false");
  }
  settingsFile.printf("relay_control:%s\n", relayControlEnabled ? "true" : "false");
  settingsFile.println();

  settingsFile.println("[VENTILACIJA]");
  settingsFile.printf("vent_auto:%s\n", ventilationAutoMode ? "true" : "false");
  settingsFile.printf("vent_manual:%s\n", ventilationManualOverride ? "true" : "false");
  settingsFile.printf("vent_day_temp:%.1f\n", ventilationDayTempThreshold);
  settingsFile.printf("vent_day_hum:%.0f\n", ventilationDayHumThreshold);
  settingsFile.printf("vent_night_temp:%.1f\n", ventilationNightTempThreshold);
  settingsFile.printf("vent_night_hum:%.0f\n", ventilationNightHumThreshold);
  settingsFile.printf("vent_day_runtime:%d\n", ventilationDayMinRuntime);
  settingsFile.printf("vent_night_runtime:%d\n", ventilationNightMinRuntime);
  settingsFile.printf("vent_day_cooldown:%d\n", ventilationDayCooldown);
  settingsFile.printf("vent_night_cooldown:%d\n", ventilationNightCooldown);
  settingsFile.printf("vent_day_switch:%d\n", dayNightSwitchHour);
  settingsFile.printf("vent_night_switch:%d\n", nightDaySwitchHour);
  settingsFile.println();

  settingsFile.println("[ZEMELJSKA_VLAGA]");
  settingsFile.printf("soil_dry:%d\n", SOIL_DRY_VALUE);
  settingsFile.printf("soil_wet:%d\n", SOIL_WET_VALUE);
  settingsFile.println();

  settingsFile.println("[VENTILATOR]");
  settingsFile.printf("vent_relay_state:%s\n", relayStates[VENTILATION_RELAY] ? "true" : "false");
  settingsFile.println();

  settingsFile.println("[SISTEM]");
  settingsFile.printf("storage_mode:%s\n", useSDCard ? "SD" : "FLASH");
  settingsFile.printf("wifi_auto_connect:%s\n", autoConnecting ? "true" : "false");
  settingsFile.println();

  settingsFile.println("=== KONEC NASTAVITEV ===");
  settingsFile.close();

  if (SD.exists(SETTINGS_FILE)) {
    File checkFile = SD.open(SETTINGS_FILE, FILE_READ);
    if (checkFile) {
      size_t fileSize = checkFile.size();
      checkFile.close();
      Serial.printf("✓ Nastavitve uspesno shranjene na SD kartico!\n");
      Serial.printf("  Velikost settings.txt: %d bytes\n", fileSize);

      digitalWrite(TFT_CS, LOW);
      delay(10);

      showTemporaryMessage("Nastavitve shranjene!\nNa SD kartico", rgbTo565(80, 220, 100), 3000);
    } else {
      digitalWrite(TFT_CS, LOW);
    }
  } else {
    digitalWrite(TFT_CS, LOW);
  }

  Serial.println("=== KONEC SHRANJEVANJA ===\n");
}

void loadSettingsFromSD() {
  if (!sdInitialized) {
    if (!initializeSDCard()) {
      return;
    }
  }

  digitalWrite(TFT_CS, HIGH);
  delay(10);

  if (!SD.exists(SETTINGS_FILE)) {
    digitalWrite(TFT_CS, LOW);
    return;
  }

  Serial.println("\n=== NALAGANJE NASTAVITEV IZ SD KARTICE ===");

  File settingsFile = SD.open(SETTINGS_FILE, FILE_READ);
  if (!settingsFile) {
    digitalWrite(TFT_CS, LOW);
    return;
  }

  int loadedCount = 0;
  int errorCount = 0;

  while (settingsFile.available()) {
    String line = settingsFile.readStringUntil('\n');
    line.trim();

    if (line.length() == 0 || line.startsWith("===") || line.startsWith("[")) {
      continue;
    }

    int colonPos = line.indexOf(':');
    if (colonPos == -1) continue;

    String key = line.substring(0, colonPos);
    String value = line.substring(colonPos + 1);

    if (key == "temp_min") {
      targetTempMin = value.toFloat();
      loadedCount++;
    } else if (key == "temp_max") {
      targetTempMax = value.toFloat();
      loadedCount++;
    } else if (key == "hum_min") {
      targetHumMin = value.toFloat();
      loadedCount++;
    } else if (key == "hum_max") {
      targetHumMax = value.toFloat();
      loadedCount++;
    } else if (key == "auto_control") {
      autoControlEnabled = (value == "true");
      loadedCount++;
    }

    else if (key == "shade_min") {
      shadeMinLux = value.toFloat();
      loadedCount++;
    } else if (key == "shade_max") {
      shadeMaxLux = value.toFloat();
      loadedCount++;
    } else if (key == "shade_auto") {
      shadeAutoControl = (value == "true");
      loadedCount++;
    } else if (key == "shade_position") {
      shadeActualPosition = value.toInt();
      loadedCount++;
    }

    else if (key == "light_auto") {
      lightAutoMode = (value == "true");
      loadedCount++;
    } else if (key == "light_manual") {
      lightManualOverride = (value == "true");
      loadedCount++;
    } else if (key == "light_on") {
      lightOnThreshold = value.toFloat();
      loadedCount++;
    } else if (key == "light_off") {
      lightOffThreshold = value.toFloat();
      loadedCount++;
    } else if (key == "light_time_enabled") {
      lightTimeControlEnabled = (value == "true");
      loadedCount++;
    } else if (key == "light_start") {
      int colonPos2 = value.indexOf(':');
      if (colonPos2 != -1) {
        lightStartHour = value.substring(0, colonPos2).toInt();
        lightStartMinute = value.substring(colonPos2 + 1).toInt();
        loadedCount++;
      }
    } else if (key == "light_end") {
      int colonPos2 = value.indexOf(':');
      if (colonPos2 != -1) {
        lightEndHour = value.substring(0, colonPos2).toInt();
        lightEndMinute = value.substring(colonPos2 + 1).toInt();
        loadedCount++;
      }
    }

    else if (key == "lighting_auto") {
      lightingAutoMode = (value == "true");
      loadedCount++;
    } else if (key == "lighting_manual") {
      lightingManualOverride = (value == "true");
      loadedCount++;
    }

    else if (key.startsWith("block_")) {
      int underscore1 = key.indexOf('_');
      int underscore2 = key.indexOf('_', underscore1 + 1);

      if (underscore1 != -1 && underscore2 != -1) {
        int blockNum = key.substring(underscore1 + 1, underscore2).toInt();
        String param = key.substring(underscore2 + 1);

        if (blockNum >= 0 && blockNum < MAX_TIME_BLOCKS) {
          if (param == "enabled") {
            timeBlocks[blockNum].enabled = (value == "true");
            loadedCount++;
          } else if (param == "action") {
            timeBlocks[blockNum].relayOn = (value == "ON");
            loadedCount++;
          } else if (param == "start") {
            int colonPos2 = value.indexOf(':');
            if (colonPos2 != -1) {
              timeBlocks[blockNum].startHour = value.substring(0, colonPos2).toInt();
              timeBlocks[blockNum].startMinute = value.substring(colonPos2 + 1).toInt();
              loadedCount++;
            }
          } else if (param == "end") {
            int colonPos2 = value.indexOf(':');
            if (colonPos2 != -1) {
              timeBlocks[blockNum].endHour = value.substring(0, colonPos2).toInt();
              timeBlocks[blockNum].endMinute = value.substring(colonPos2 + 1).toInt();
              loadedCount++;
            }
          } else if (param == "days" && value != "none") {
            for (int d = 0; d < DAYS_IN_WEEK; d++) {
              timeBlocks[blockNum].days[d] = false;
            }

            int startPos = 0;
            int commaPos;
            do {
              commaPos = value.indexOf(',', startPos);
              String dayStr;
              if (commaPos == -1) {
                dayStr = value.substring(startPos);
              } else {
                dayStr = value.substring(startPos, commaPos);
                startPos = commaPos + 1;
              }

              int day = dayStr.toInt();
              if (day >= 0 && day < DAYS_IN_WEEK) {
                timeBlocks[blockNum].days[day] = true;
              }
            } while (commaPos != -1);

            loadedCount++;
          } else if (param == "desc") {
            timeBlocks[blockNum].description = value;
            loadedCount++;
          }
        }
      }
    }

    else if (key.startsWith("relay_")) {
      int relayNum = key.substring(6).toInt();
      if (relayNum >= 0 && relayNum < RELAY_COUNT) {
        relayStates[relayNum] = (value == "true");
        loadedCount++;
      }
    } else if (key == "relay_control") {
      relayControlEnabled = (value == "true");
      loadedCount++;
    }

    else if (key == "vent_auto") {
      ventilationAutoMode = (value == "true");
      loadedCount++;
    } else if (key == "vent_manual") {
      ventilationManualOverride = (value == "true");
      loadedCount++;
    } else if (key == "vent_day_temp") {
      ventilationDayTempThreshold = value.toFloat();
      loadedCount++;
    } else if (key == "vent_day_hum") {
      ventilationDayHumThreshold = value.toFloat();
      loadedCount++;
    } else if (key == "vent_night_temp") {
      ventilationNightTempThreshold = value.toFloat();
      loadedCount++;
    } else if (key == "vent_night_hum") {
      ventilationNightHumThreshold = value.toFloat();
      loadedCount++;
    } else if (key == "vent_day_runtime") {
      ventilationDayMinRuntime = value.toInt();
      loadedCount++;
    } else if (key == "vent_night_runtime") {
      ventilationNightMinRuntime = value.toInt();
      loadedCount++;
    } else if (key == "vent_day_cooldown") {
      ventilationDayCooldown = value.toInt();
      loadedCount++;
    } else if (key == "vent_night_cooldown") {
      ventilationNightCooldown = value.toInt();
      loadedCount++;
    } else if (key == "vent_day_switch") {
      dayNightSwitchHour = value.toInt();
      loadedCount++;
    } else if (key == "vent_night_switch") {
      nightDaySwitchHour = value.toInt();
      loadedCount++;
    }

    else if (key == "soil_dry") {
      SOIL_DRY_VALUE = value.toInt();
      loadedCount++;
    } else if (key == "soil_wet") {
      SOIL_WET_VALUE = value.toInt();
      loadedCount++;
    }
  }

  settingsFile.close();

  digitalWrite(TFT_CS, LOW);

  Serial.printf("Nalozenih %d nastavitev iz SD kartice!\n", loadedCount);

  if (mcpInitialized) {
    for (int i = 0; i < RELAY_COUNT; i++) {
      mcp.digitalWrite(RELAY_START_PIN + i, relayStates[i] ? LOW : HIGH);
    }
  }

  Serial.println("=== KONEC NALAGANJA IZ SD ===\n");
}

void showSDCardManagementScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(100, 200, 100));
  tft.setCursor(150, 40);
  tft.println("UPRAVLJANJE SD KARTICE");

  tft.drawRoundRect(10, 50, 460, 150, 10, rgbTo565(100, 200, 100));
  tft.fillRoundRect(11, 51, 458, 148, 10, rgbTo565(20, 40, 50));

  int yOffset = 65;
  int lineHeight = 16;

  tft.setTextSize(1);

  tft.setCursor(30, yOffset);
  tft.setTextColor(rgbTo565(220, 220, 255));
  tft.print("Status: ");
  tft.setTextColor(sdInitialized ? rgbTo565(80, 220, 100) : rgbTo565(255, 80, 80));
  tft.println(sdInitialized ? "PRISOTNA" : "ODSOTNA");

  if (sdInitialized) {
    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
    uint64_t usedSpace = SD.usedBytes() / (1024 * 1024);
    uint64_t freeSpace = cardSize - usedSpace;

    tft.setCursor(30, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("Velikost: ");
    tft.setTextColor(rgbTo565(200, 200, 255));
    tft.printf("%llu MB", cardSize);

    tft.setCursor(30, yOffset + 2 * lineHeight);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("Prostor: ");
    tft.setTextColor(rgbTo565(200, 200, 255));
    tft.printf("%llu MB", freeSpace);

    tft.setCursor(30, yOffset + 3 * lineHeight);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("Shranjevanje: ");
    tft.setTextColor(useSDCard ? rgbTo565(100, 200, 100) : rgbTo565(255, 200, 50));
    tft.println(useSDCard ? "SD KARTICA" : "FLASH");
  } else {
    tft.setCursor(30, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(255, 150, 50));
    tft.println("SD kartica ni najdena!");
    tft.setCursor(30, yOffset + 2 * lineHeight);
    tft.setTextColor(rgbTo565(200, 200, 200));
    tft.println("Preverite povezavo in");
    tft.setCursor(30, yOffset + 3 * lineHeight);
    tft.println("vstavite SD kartico.");
  }

  int buttonWidth = 140;
  int buttonHeight = 35;
  int buttonSpacing = 20;

  int buttonY1 = 220;
  drawMenuButton(40, buttonY1, buttonWidth, buttonHeight,
                            rgbTo565(100, 200, 100), sdInitialized ? (useSDCard ? "UPORABI FLASH" : "UPORABI SD") : "INICIALIZIRAJ SD");

  drawMenuButton(40 + buttonWidth + buttonSpacing, buttonY1, buttonWidth, buttonHeight,
                            rgbTo565(76, 175, 80), "OSVEZI");

  int buttonY2 = buttonY1 + buttonHeight + 10;
  drawMenuButton(40, buttonY2, buttonWidth, buttonHeight,
                            rgbTo565(66, 135, 245), "NALOZI IZ SD");

  drawMenuButton(40 + buttonWidth + buttonSpacing, buttonY2, buttonWidth, buttonHeight,
                            rgbTo565(245, 67, 54), "NAZAJ");

  currentState = STATE_SD_MANAGEMENT;
}

void handleSDCardManagementTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int buttonWidth = 140;
  int buttonHeight = 35;
  int buttonSpacing = 20;
  int buttonY1 = 220;
  int buttonY2 = buttonY1 + buttonHeight + 10;

  int leftColumnX = 40;
  int rightColumnX = leftColumnX + buttonWidth + buttonSpacing;

  if (x > leftColumnX && x < leftColumnX + buttonWidth && y > buttonY1 && y < buttonY1 + buttonHeight) {
    if (!sdInitialized) {
      initializeSDCard();
    } else {
      toggleStorageMode();
    }

    showSDCardManagementScreen();
    return;
  }

  if (x > rightColumnX && x < rightColumnX + buttonWidth && y > buttonY1 && y < buttonY1 + buttonHeight) {
    showSDCardManagementScreen();
    return;
  }

  if (x > leftColumnX && x < leftColumnX + buttonWidth && y > buttonY2 && y < buttonY2 + buttonHeight) {
    if (sdInitialized && useSDCard) {
      loadSettingsFromSD();
      tft.fillRect(100, 150, 280, 60, rgbTo565(20, 40, 70));
      tft.drawRect(100, 150, 280, 60, rgbTo565(0, 150, 255));
      tft.setTextSize(1);
      tft.setTextColor(rgbTo565(80, 220, 100));
      tft.setCursor(120, 170);
      tft.println("Nastavitve nalozene!");
      delay(1500);
    } else {
      tft.fillRect(100, 150, 280, 60, rgbTo565(20, 40, 70));
      tft.drawRect(100, 150, 280, 60, rgbTo565(0, 150, 255));
      tft.setTextSize(1);
      tft.setTextColor(rgbTo565(255, 80, 80));
      tft.setCursor(110, 170);
      if (!sdInitialized) {
        tft.println("SD kartica ni najdena!");
      } else {
        tft.println("Shranjevanje ni na SD!");
      }
      delay(1500);
    }

    showSDCardManagementScreen();
    return;
  }

  if (x > rightColumnX && x < rightColumnX + buttonWidth && y > buttonY2 && y < buttonY2 + buttonHeight) {
    showMainMenu();
    return;
  }
}

void testSDPins() {
  Serial.println("\n=== TEST SD PINOV (NOVI PINI) ===");

  digitalWrite(TFT_CS, HIGH);
  delay(10);

  pinMode(SD_CS_PIN, OUTPUT);
  pinMode(SD_SCK_PIN, OUTPUT);
  pinMode(SD_MOSI_PIN, OUTPUT);
  pinMode(SD_MISO_PIN, INPUT_PULLUP);

  digitalWrite(SD_CS_PIN, HIGH);
  delay(10);

  int misoValue = digitalRead(SD_MISO_PIN);
  Serial.printf("MISO pin %d vrednost: %d\n", SD_MISO_PIN, misoValue);

  SPI.begin(SD_SCK_PIN, SD_MISO_PIN, SD_MOSI_PIN, SD_CS_PIN);

  if (SD.begin(SD_CS_PIN, SPI, 4000000)) {
    Serial.println("✓ SD kartica USPESNO inicializirana!");

    uint8_t cardType = SD.cardType();
    Serial.printf("  Tip kartice: %d\n", cardType);

    File testFile = SD.open("/test.txt", FILE_WRITE);
    if (testFile) {
      testFile.println("Test pisanja na SD kartico");
      testFile.close();
      Serial.println("✓ Pisanje USPESNO!");

      testFile = SD.open("/test.txt", FILE_READ);
      if (testFile) {
        Serial.print("  Prebrano: ");
        while (testFile.available()) {
          Serial.write(testFile.read());
        }
        testFile.close();
        Serial.println();
      }

      if (SD.remove("/test.txt")) {
        Serial.println("  Testna datoteka izbrisana");
      }
    } else {
      Serial.println("✗ Pisanje NEUSPESNO!");
    }

    SD.end();
  } else {
    Serial.println("✗ SD kartica NI inicializirana!");
  }

  digitalWrite(TFT_CS, LOW);

  Serial.println("=== KONEC TESTA ===\n");
}

void initESPNow() {
    Serial.println("\n=== INICIALIZACIJA ESP-NOW ===");
    
    // 1. Najprej nastavi WiFi način
    WiFi.mode(WIFI_STA);
    WiFi.disconnect(true);
    delay(100);
    
    // 2. Nastavi kanal na 1
    esp_wifi_set_promiscuous(true);
    esp_wifi_set_channel(1, WIFI_SECOND_CHAN_NONE);
    esp_wifi_set_promiscuous(false);
    Serial.println("📡 Kanal nastavljen na 1 za ESP-NOW");
    
    // 3. Inicializiraj ESP-NOW
    if (esp_now_init() != ESP_OK) {
        Serial.println("❌ ESP-NOW napaka pri inicializaciji!");
        return;
    }
    Serial.println("✅ ESP-NOW inicializiran!");
    
    // 4. Registriraj callback za prejemanje
    esp_now_register_recv_cb(esp_now_recv_cb_t(onModuleDataRecv));
    
    // 5. Dodaj peerje za VSE module
    esp_now_peer_info_t peerInfo;
    
    // ===== SEZNAM VSEH MAC NASLOVOV (iz logov) =====
    const uint8_t allMACs[][6] = {
        {0x80, 0xB5, 0x4E, 0xC6, 0x0A, 0x04},  // Modul 1 - vremenski
        {0xB8, 0xF8, 0x62, 0xF8, 0x65, 0xC0},  // Modul 2 - namakalni
        {0x58, 0x8C, 0x81, 0xCB, 0xDC, 0x80},  // Modul 3 - senčenje
        {0xCE, 0x4D, 0xCC, 0x3F, 0xC8, 0x4D},  // Modul 4 - stari MAC
        {0x1A, 0xD8, 0xCB, 0x3F, 0x14, 0xD8},  // Modul 4 - novi MAC
        {0xC6, 0x48, 0xCC, 0x3F, 0xC0, 0x48},  // Modul 4 - še en MAC
        {0xC2, 0xF2, 0xCB, 0x3F, 0xBC, 0xF2},  // Neznani MAC
    };
    
    const char* macNames[] = {
        "Modul 1 (vremenski)",
        "Modul 2 (namakalni)",
        "Modul 3 (senčenje)",
        "Modul 4 (stari MAC)",
        "Modul 4 (novi MAC)",
        "Modul 4 (tretji MAC)",
        "Neznani MAC"
    };
    
    int addedCount = 0;
    for(int m = 0; m < 7; m++) {
        memset(&peerInfo, 0, sizeof(peerInfo));
        memcpy(peerInfo.peer_addr, allMACs[m], 6);
        peerInfo.channel = 1;
        peerInfo.encrypt = false;
        peerInfo.ifidx = WIFI_IF_STA;
        
        // Preveri, če peer že obstaja, preden ga dodamo
        if (!esp_now_is_peer_exist(allMACs[m])) {
            if (esp_now_add_peer(&peerInfo) == ESP_OK) {
                Serial.printf("  ✅ Peer %s: %02X:%02X:%02X:%02X:%02X:%02X\n", 
                              macNames[m],
                              allMACs[m][0], allMACs[m][1], allMACs[m][2],
                              allMACs[m][3], allMACs[m][4], allMACs[m][5]);
                addedCount++;
            } else {
                Serial.printf("  ❌ Napaka pri dodajanju peer-ja %s\n", macNames[m]);
            }
        } else {
            Serial.printf("  ⚠️ Peer %s že obstaja\n", macNames[m]);
        }
    }
    
    // ===== DODAJ ŠE GLOBALNI BROADCAST (če je potrebno) =====
    // Nekateri moduli morda pošiljajo na broadcast naslov
    const uint8_t broadcastMAC[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
    if (!esp_now_is_peer_exist(broadcastMAC)) {
        memset(&peerInfo, 0, sizeof(peerInfo));
        memcpy(peerInfo.peer_addr, broadcastMAC, 6);
        peerInfo.channel = 1;
        peerInfo.encrypt = false;
        peerInfo.ifidx = WIFI_IF_STA;
        if (esp_now_add_peer(&peerInfo) == ESP_OK) {
            Serial.println("  ✅ Peer BROADCAST (FF:FF:FF:FF:FF:FF) dodan");
            addedCount++;
        }
    }
    
    // ===== PREVERI VSE PEERJE =====
    esp_now_peer_num_t peerNum;
    esp_err_t err = esp_now_get_peer_num(&peerNum);
    if (err == ESP_OK) {
        Serial.printf("📊 Skupaj aktivnih peerjev: %d\n", peerNum.total_num);
    }
    
    Serial.printf("📊 Skupaj dodanih peerjev: %d\n", addedCount);
    Serial.println("=== KONEC INICIALIZACIJE ESP-NOW ===\n");
}
void testSendToModule3() {
    Serial.println("\n╔════════════════════════════════════════════════════╗");
    Serial.println("║     TEST POŠILJANJA UKAZA MODULU 3                ║");
    Serial.println("╚════════════════════════════════════════════════════╝");
    
    Serial.print("MAC naslov modula 3: ");
    for(int i = 0; i < 6; i++) {
        Serial.printf("%02X", module3MAC[i]);
        if(i < 5) Serial.print(":");
    }
    Serial.println();
    
    bool peerExists = esp_now_is_peer_exist(module3MAC);
    Serial.printf("Peer obstaja: %s\n", peerExists ? "DA" : "NE");
    
    if (!peerExists) {
        Serial.println("Poskušam dodati peer...");
        esp_now_peer_info_t peerInfo;
        memset(&peerInfo, 0, sizeof(peerInfo));
        memcpy(peerInfo.peer_addr, module3MAC, 6);
        peerInfo.channel = 1;
        peerInfo.encrypt = false;
        peerInfo.ifidx = WIFI_IF_STA;
        
        esp_err_t addResult = esp_now_add_peer(&peerInfo);
        if (addResult == ESP_OK) {
            Serial.println("✅ Peer dodan!");
        } else {
            Serial.printf("❌ Napaka pri dodajanju: %d\n", addResult);
            return;
        }
    }
    
    Serial.println("\nPošiljam testni ukaz STOP...");
    sendShadeCommand(CMD_STOP, 0, 0);
    delay(500);
    
    Serial.println("Pošiljam testni ukaz za premik na 50%...");
    sendShadeCommand(CMD_MOVE_TO_POSITION, 50, 0);
    delay(500);
    
    Serial.println("Pošiljam testni ukaz za premik na 0%...");
    sendShadeCommand(CMD_MOVE_TO_POSITION, 0, 0);
    
    Serial.println("\n╔════════════════════════════════════════════════════╗");
    Serial.println("║     TEST KONČAN - PREVERITE SERIAL MONITOR        ║");
    Serial.println("║     MODULA 3 ZA ODZIV                             ║");
    Serial.println("╚════════════════════════════════════════════════════╝\n");
}

void sendShadeCommand(int command, float param1, float param2) {
    Serial.println("\n╔════════════════════════════════════════════════════╗");
    Serial.printf("📡 POŠILJAM UKAZ NA MODUL 3: cmd=%d, p1=%.1f, p2=%.1f\n", command, param1, param2);
    
    Serial.print("  MAC naslov modula 3: ");
    for(int i = 0; i < 6; i++) {
        Serial.printf("%02X", module3MAC[i]);
        if(i < 5) Serial.print(":");
    }
    Serial.println();
    
    Serial.printf("  Trenutni kanal: %d\n", WiFi.channel());
    
    CommandData cmd;
    cmd.targetModuleId = 3;
    cmd.command = command;
    cmd.param1 = param1;
    cmd.param2 = param2;
    
    bool peerExists = esp_now_is_peer_exist(module3MAC);
    Serial.printf("  Peer obstaja: %s\n", peerExists ? "DA" : "NE");
    
    if (!peerExists) {
        Serial.println("  ⚠ Peer ne obstaja, ga dodajam...");
        esp_now_peer_info_t peerInfo;
        memset(&peerInfo, 0, sizeof(peerInfo));
        memcpy(peerInfo.peer_addr, module3MAC, 6);
        peerInfo.channel = 1;
        peerInfo.encrypt = false;
        peerInfo.ifidx = WIFI_IF_STA;
        
        esp_err_t addResult = esp_now_add_peer(&peerInfo);
        if (addResult == ESP_OK) {
            Serial.println("  ✅ Peer dodan!");
        } else {
            Serial.printf("  ❌ Napaka pri dodajanju peer-ja: %d\n", addResult);
            Serial.println("╚════════════════════════════════════════════════════╝\n");
            return;
        }
    }
    
    esp_err_t result = esp_now_send(module3MAC, (uint8_t*)&cmd, sizeof(cmd));
    
    if (result == ESP_OK) {
        Serial.println("  ✅ Ukaz POSLAN!");
    } else {
        Serial.printf("  ❌ Napaka pri pošiljanju: %d\n", result);
        
        if (result == ESP_ERR_ESPNOW_NOT_FOUND) {
            Serial.println("  → Peer ne obstaja, poskusim ponovno dodati...");
            esp_now_peer_info_t peerInfo;
            memset(&peerInfo, 0, sizeof(peerInfo));
            memcpy(peerInfo.peer_addr, module3MAC, 6);
            peerInfo.channel = 0;
            peerInfo.encrypt = false;
            peerInfo.ifidx = WIFI_IF_STA;
            esp_now_add_peer(&peerInfo);
            
            result = esp_now_send(module3MAC, (uint8_t*)&cmd, sizeof(cmd));
            if (result == ESP_OK) {
                Serial.println("  ✅ Ukaz POSLAN (po ponovnem dodajanju)!");
            } else {
                Serial.printf("  ❌ Ponovni poskus prav tako ni uspel: %d\n", result);
            }
        }
    }
    
    Serial.println("╚════════════════════════════════════════════════════╝\n");
}

void moveShadeTo(int position) {
  position = constrain(position, 0, 100);
  Serial.printf("\n🎮 ROČNO KRMILJENJE: Premik senčnika na %d%%\n", position);
  sendShadeCommand(CMD_MOVE_TO_POSITION, position, 0);
}

void calibrateShade() {
  Serial.println("\n🔧 KALIBRACIJA: Začenjam kalibracijo senčnika...");
  sendShadeCommand(CMD_CALIBRATE, 0, 0);
}

void stopShade() {
  Serial.println("\n⏹️ ZAUSTAVITEV: Zaustavljam senčnik");
  sendShadeCommand(CMD_STOP, 0, 0);
}

void emergencyStopShade() {
  Serial.println("\n🚨 NUJNA ZAUSTAVITEV: Takojšnja zaustavitev motorja!");
  sendShadeCommand(CMD_EMERGENCY_STOP, 0, 0);
}

void setShadeSpeed(int speed) {
  speed = constrain(speed, 100, 2000);
  Serial.printf("\n⚙️ NASTAVITEV HITROSTI: %d\n", speed);
  sendShadeCommand(CMD_SET_SPEED, speed, 0);
}

void setShadeAutoMode(bool autoMode) {
  shadeAutoControl = autoMode;
  Serial.printf("\n🔄 AVTOMATSKI NAČIN: %s\n", autoMode ? "VKLOPLJEN" : "IZKLOPLJEN");
  sendShadeCommand(CMD_SET_AUTO_MODE, autoMode ? 1 : 0, 0);
  markSettingsChanged();
}

void sendModuleCommand(uint8_t moduleId, int command, float param1, float param2) {
    uint8_t* targetMAC = nullptr;
    String moduleName;
    bool* moduleActiveFlag = nullptr;

    if (moduleId == 1) {
        targetMAC = module1MAC;
        moduleName = "Modul 1";
        moduleActiveFlag = &module1Active;
    } else if (moduleId == 2) {
        targetMAC = module2MAC;
        moduleName = "Modul 2";
        moduleActiveFlag = &module2Active;
    } else if (moduleId == 3) {
        targetMAC = module3MAC;
        moduleName = "Modul 3";
        moduleActiveFlag = &module3Active;
    } else {
        Serial.printf("  ❌ Neznan modul ID: %d\n", moduleId);
        return;
    }

    bool hasValidMAC = false;
    for(int i = 0; i < 6; i++) {
        if(targetMAC[i] != 0) {
            hasValidMAC = true;
            break;
        }
    }
    
    if (!hasValidMAC) {
        Serial.printf("  ❌ MAC naslov %s ni znan! Čakam na prvi prejem podatkov...\n", moduleName.c_str());
        return;
    }

    CommandData cmd;
    cmd.targetModuleId = moduleId;
    cmd.command = command;
    cmd.param1 = param1;
    cmd.param2 = param2;

    esp_err_t result = esp_now_send(targetMAC, (uint8_t*)&cmd, sizeof(cmd));

    if (result == ESP_OK) {
        Serial.printf("  ✅ Ukaz poslan na %s: cmd=%d, p1=%.1f, p2=%.1f\n", 
                      moduleName.c_str(), command, param1, param2);
    } else {
        Serial.printf("  ❌ Napaka pri pošiljanju na %s: %d\n", moduleName.c_str(), result);
        
        if (result == ESP_ERR_ESPNOW_NOT_FOUND) {
            Serial.printf("  → Peer za %s ne obstaja, poskusim dodati...\n", moduleName.c_str());
            esp_now_peer_info_t peerInfo;
            memset(&peerInfo, 0, sizeof(peerInfo));
            memcpy(peerInfo.peer_addr, targetMAC, 6);
            peerInfo.channel = 1;
            peerInfo.encrypt = false;
            peerInfo.ifidx = WIFI_IF_STA;
            
            if (esp_now_add_peer(&peerInfo) == ESP_OK) {
                Serial.printf("  ✅ Peer za %s dodan!\n", moduleName.c_str());
                result = esp_now_send(targetMAC, (uint8_t*)&cmd, sizeof(cmd));
                if (result == ESP_OK) {
                    Serial.printf("  ✅ Ukaz poslan na %s (po ponovnem dodajanju)!\n", moduleName.c_str());
                } else {
                    Serial.printf("  ❌ Ponovni poskus za %s prav tako ni uspel: %d\n", moduleName.c_str(), result);
                }
            } else {
                Serial.printf("  ❌ Napaka pri dodajanju peer-ja za %s\n", moduleName.c_str());
            }
        }
    }
}

void sendModule1Command(int command, float param1, float param2) {
    sendModuleCommand(1, command, param1, param2);
}

void sendModule2Command(int command, float param1, float param2) {
    sendModuleCommand(2, command, param1, param2);
}

void setModule2Relay(int relayNum, bool state) {
  if (relayNum < 1 || relayNum > 3) {
    return;
  }

  sendModule2Command(1, (float)relayNum, (float)state);

  switch (relayNum) {
    case 1: module2Relay1State = state; break;
    case 2: module2Relay2State = state; break;
    case 3: module2Relay3State = state; break;
  }
}

void onModuleDataRecv(const uint8_t* mac, const uint8_t* incomingData, int len) {
    // Izpiši MAC naslov pošiljatelja
    Serial.print("📡 PREJETO OD: ");
    for(int i = 0; i < 6; i++) {
        Serial.printf("%02X", mac[i]);
        if(i < 5) Serial.print(":");
    }
    Serial.printf(" (len=%d)\n", len);
    
    // ==================== PREVERI MODUL 4 (besedilni format) ====================
    bool isTextData = false;
    for(int i = 0; i < min(len, 10); i++) {
        if(incomingData[i] == 'M' && incomingData[i+1] == '4' && incomingData[i+2] == ':') {
            isTextData = true;
            break;
        }
    }
    
    if (isTextData) {
        String received = String((char*)incomingData);
        if (received.startsWith("M4:")) {
            received = received.substring(3);
            
            int comma1 = received.indexOf(',');
            int comma2 = received.indexOf(',', comma1 + 1);
            int comma3 = received.indexOf(',', comma2 + 1);
            int comma4 = received.indexOf(',', comma3 + 1);
            int comma5 = received.indexOf(',', comma4 + 1);
            int comma6 = received.indexOf(',', comma5 + 1);
            
            if (comma1 > 0 && comma2 > 0 && comma3 > 0 && comma4 > 0 && comma5 > 0 && comma6 > 0) {
                module4AirTemp = received.substring(0, comma1).toFloat();
                module4AirHum = received.substring(comma1 + 1, comma2).toFloat();
                module4Pressure = received.substring(comma2 + 1, comma3).toFloat();
                module4LightPercent = received.substring(comma3 + 1, comma4).toInt();
                module4SoilTemp = received.substring(comma4 + 1, comma5).toFloat();
                module4SoilMoisture = received.substring(comma5 + 1, comma6).toInt();
                
                // Uporabi kalibrirano pretvorbo za notranji LDR
                internalTemperature = module4AirTemp;
                internalHumidity = module4AirHum;
                soilMoisturePercent = module4SoilMoisture;
                ldrInternalPercent = module4LightPercent;
                
                // 🔧 KALIBRIRANA PRETVORBA za notranji LDR
                updateLDRConversion();  // Ta funkcija posodobi ldrInternalLux iz module4LightPercent
                
                module4Active = true;
                lastModule4Time = millis();
                
                Serial.printf("  🌡️ Modul 4: T=%.1f°C, H=%.1f%%, Light=%d%%, Lux=%d lx (kalibrirano)\n", 
                              module4AirTemp, module4AirHum, module4LightPercent, (int)ldrInternalLux);
                
                if (currentState == STATE_HOME_SCREEN) {
                    updateHomeScreenDynamicValues();
                }
            }
        }
        return;
    }
    
    // ==================== PREVERI BINARNE PODATKE ====================
    if (len < 4) return;
    
    uint8_t moduleId = incomingData[0];
    uint8_t moduleType = incomingData[1];
    
    // ===== MODUL 1 - VREMENSKI (PRAVILNI OFFSETI: 16,20,24,28) =====
    if (moduleId == 1 || moduleType == 1) {
        if (len >= 32) {
            // Pravilni odmiki iz testiranja:
            // Temperatura: byte 16-19
            // Vlaga: byte 20-23
            // Tlak: byte 24-27
            // Svetloba: byte 28-31
            memcpy(&externalTemperature, incomingData + 16, 4);
            memcpy(&externalHumidity, incomingData + 20, 4);
            memcpy(&externalPressure, incomingData + 24, 4);
            memcpy(&externalLux, incomingData + 28, 4);
            
            // Preveri veljavnost podatkov
            if (externalTemperature < -10 || externalTemperature > 50) externalTemperature = 0;
            if (externalHumidity < 0 || externalHumidity > 100) externalHumidity = 0;
            if (externalPressure < 800 || externalPressure > 1100) externalPressure = 1013.25;
            if (externalLux < 0 || externalLux > 100000) externalLux = 0;
            
            // 🔧 KALIBRIRANA PRETVORBA za zunanji LDR
            float rawExternalLux = externalLux;  // Shranimo surovo vrednost za debug
            updateLDRConversion();  // Ta funkcija posodobi externalLux s kalibrirano vrednostjo
            
            module1Active = true;
            lastModule1Time = millis();
            
            Serial.printf("  🌤️ Zunanji: T=%.1f°C, H=%.1f%%, P=%.1fhPa, Lux=%.0f lx (surovo: %.0f, kalibrirano: %.0f)\n", 
                          externalTemperature, externalHumidity, externalPressure, 
                          externalLux, rawExternalLux, externalLux);
            
            if (currentState == STATE_HOME_SCREEN) {
                updateHomeScreenDynamicValues();
            }
        }
        return;
    }
    
    // ===== MODUL 2 - NAMAKALNI =====
    if (moduleId == 2 || moduleType == 2) {
        if (len >= 32) {
            memcpy(&module2FlowRate1, incomingData + 8, 4);
            memcpy(&module2FlowRate2, incomingData + 12, 4);
            memcpy(&module2FlowRate3, incomingData + 16, 4);
            memcpy(&module2TotalFlow1, incomingData + 20, 4);
            memcpy(&module2TotalFlow2, incomingData + 24, 4);
            memcpy(&module2TotalFlow3, incomingData + 28, 4);
            
            module2Active = true;
            lastModule2Time = millis();
            
            Serial.printf("  💧 Modul 2: Flow1=%.2f L/min, Flow2=%.2f L/min, Flow3=%.2f L/min\n", 
                          module2FlowRate1, module2FlowRate2, module2FlowRate3);
        }
        return;
    }
    
    // ===== MODUL 3 - SENČENJE =====
    if (moduleId == 3 || moduleType == 3) {
        if (len >= 20) {
            memcpy(&shadeCurrentPosition, incomingData + 8, 4);
            memcpy(&shadeTargetPosition, incomingData + 12, 4);
            shadeIsMoving = (incomingData[16] != 0);
            shadeIsCalibrated = (incomingData[17] != 0);
            
            module3Active = true;
            lastModule3Time = millis();
            
            Serial.printf("  🎬 Modul 3: Pozicija=%d%%, Cilj=%d%%, Premikanje=%s, Kalibriran=%s\n", 
                          shadeCurrentPosition, shadeTargetPosition, 
                          shadeIsMoving ? "DA" : "NE", 
                          shadeIsCalibrated ? "DA" : "NE");
        }
        return;
    }
    
    // ===== Če pridemo sem, pomeni da smo prejeli neznan format =====
    Serial.print("  ⚠️ Neznan format podatkov: ");
    for(int i = 0; i < min(len, 16); i++) {
        Serial.printf("%02X ", incomingData[i]);
    }
    Serial.println();
}

void checkModulesTimeout() {
  unsigned long now = millis();

  if (now - lastModule1Time > MODULE1_TIMEOUT) {
    if (module1Active) {
      module1Active = false;

      externalTemperature = 0;
      externalHumidity = 0;
      externalPressure = 1013.25;
      externalLux = 0;

      if (currentState == STATE_HOME_SCREEN) {
        updateHomeScreenDynamicValues();
      }
    }
  }

  if (now - lastModule4Time > MODULE4_TIMEOUT) {
    if (module4Active) {
        module4Active = false;
        Serial.println("⚠️ Modul 4 timeout - ni več aktiven!");
        if (currentState == STATE_HOME_SCREEN) {
            updateHomeScreenDynamicValues();
        }
    }
  }

  if (now - lastModule2Time > MODULE2_TIMEOUT) {
    if (module2Active) {
      module2Active = false;

      module2FlowRate1 = 0;
      module2FlowRate2 = 0;
      module2FlowRate3 = 0;
      module2TotalFlow1 = 0;
      module2TotalFlow2 = 0;
      module2TotalFlow3 = 0;
      module2Relay1State = false;
      module2Relay2State = false;
      module2Relay3State = false;

      if (currentState == STATE_HOME_SCREEN) {
        updateHomeScreenDynamicValues();
      }
    }
  }

  if (now - lastModule3Time > MODULE3_TIMEOUT) {
    if (module3Active) {
      module3Active = false;

      shadeCurrentPosition = 0;
      shadeTargetPosition = 0;
      shadeIsMoving = false;
      shadeIsCalibrated = false;
      shadeLimitOpen = false;
      shadeLimitClosed = false;

      if (currentState == STATE_HOME_SCREEN) {
        updateHomeScreenDynamicValues();
      }
    }
  }
}

float calculateVPD(float temperature, float humidity) {
  float es = 0.6108 * exp((17.27 * temperature) / (temperature + 237.3));
  float ea = es * (humidity / 100.0);
  return es - ea;
}

String getVPDDescription(float vpd) {
  if (vpd < 0.2) return "Izjemno vlazno (megla)";
  if (vpd < 0.4) return "Zelo vlazno (tropski gozd)";
  if (vpd < 0.6) return "Vlazno (idealno za Anthuriume)";
  if (vpd < 0.8) return "Zmerno vlazno (idealno za Philodendrone)";
  if (vpd < 1.0) return "Zmerno suho (pogojno OK)";
  if (vpd < 1.2) return "Suho (listi lahko trpijo)";
  if (vpd < 1.5) return "Zelo suho (skodljivo)";
  return "Ekstremno suho (NEVARNOST!)";
}

uint16_t getVPDColor(float vpd) {
  if (vpd < 0.6) return rgbTo565(0, 150, 255);
  if (vpd < 0.9) return rgbTo565(0, 255, 0);
  if (vpd < 1.2) return rgbTo565(255, 255, 0);
  return rgbTo565(255, 0, 0);
}

int findPlantSpeciesIndex(String species) {
  for (int i = 0; i < tropicalSpeciesCount; i++) {
    if (tropicalSpecies[i].species == species) {
      return i;
    }
  }
  return -1;
}

void updateVPD() {
  unsigned long now = millis();
  if (now - lastVPDUpdate > VPD_UPDATE_INTERVAL) {
    currentVPD = calculateVPD(internalTemperature, internalHumidity);
    lastVPDUpdate = now;
  }
}

int addPlantToCollection(String name, String species, bool isVariegated, String location) {
  if (plantCount >= MAX_PLANTS) return -1;

  int speciesIndex = findPlantSpeciesIndex(species);
  if (speciesIndex == -1) return -1;

  myPlants[plantCount].id = plantCount;
  myPlants[plantCount].name = name;
  myPlants[plantCount].species = species;
  myPlants[plantCount].currentHeight = 0;
  myPlants[plantCount].leafCount = 0;
  myPlants[plantCount].lastWatered = 0;
  myPlants[plantCount].lastFertilized = 0;
  myPlants[plantCount].lastMisted = 0;
  myPlants[plantCount].personalVPDFactor = 1.0;
  myPlants[plantCount].isVariegated = isVariegated;
  myPlants[plantCount].location = location;
  myPlants[plantCount].imageFile = "";

  plantCount++;
  savePlantCollection();
  return plantCount - 1;
}

void autoConfigureForPlant(int speciesIndex) {
  if (speciesIndex < 0 || speciesIndex >= tropicalSpeciesCount) return;

  TropicalPlantProfile* plant = &tropicalSpecies[speciesIndex];

  targetTempMin = plant->tempMin;
  targetTempMax = plant->tempMax;

  targetHumMin = plant->humMin;
  targetHumMax = plant->humMax;

  lightOnThreshold = plant->lightMin * 0.8;
  if (lightOnThreshold < 10) lightOnThreshold = 10;

  lightOffThreshold = plant->lightMax * 1.2;
  if (lightOffThreshold > 30000) lightOffThreshold = 30000;

  shadeMinLux = plant->lightMin;
  shadeMaxLux = plant->lightMax;

  if (plant->soilMoistureMin > 0 && plant->soilMoistureMax > 0) {
    SOIL_DRY_VALUE = map(plant->soilMoistureMin, 0, 100, 4095, 0);
    SOIL_WET_VALUE = map(plant->soilMoistureMax, 0, 100, 4095, 0);

    if (SOIL_DRY_VALUE < SOIL_WET_VALUE) {
      int temp = SOIL_DRY_VALUE;
      SOIL_DRY_VALUE = SOIL_WET_VALUE;
      SOIL_WET_VALUE = temp;
    }
  } else {
    if (plant->needsBottomWatering) {
      SOIL_DRY_VALUE = 3500;
      SOIL_WET_VALUE = 1800;
    } else {
      SOIL_DRY_VALUE = 4000;
      SOIL_WET_VALUE = 1200;
    }
  }

  if (plant->needsAirMovement) {
    ventilationAutoMode = true;
    ventilationDayMinRuntime = 10;
    ventilationNightMinRuntime = 5;
  } else {
    ventilationAutoMode = false;
  }

  lightAutoMode = true;
  lightTimeControlEnabled = true;

  lightStartHour = 6;
  lightStartMinute = 0;
  lightEndHour = 18;
  lightEndMinute = 0;

  markSettingsChanged();
  saveAllSettings();
}

void showMessage(String message, uint16_t color) {
  tft.fillRect(100, 150, 280, 60, rgbTo565(20, 40, 70));
  tft.drawRect(100, 150, 280, 60, rgbTo565(0, 150, 255));
  tft.setTextSize(1);
  tft.setTextColor(color);

  int16_t textX, textY;
  uint16_t textW, textH;
  tft.getTextBounds(message, 0, 0, &textX, &textY, &textW, &textH);
  int textPosX = 100 + (280 - textW) / 2 - textX;
  int textPosY = 150 + (60 - textH) / 2 - textY + 5;

  tft.setCursor(textPosX, textPosY);
  tft.println(message);
  delay(2000);
}

void savePlantCollection() {
  if (!sdInitialized || !useSDCard) return;

  File collectionFile = SD.open("/plant_collection.csv", FILE_WRITE);
  if (!collectionFile) return;

  collectionFile.println("ID,Ime,Vrsta,Visina (cm),Listi,Zadnje zalivanje,Zadnje gnojenje,Variegated,Lokacija");

  for (int i = 0; i < plantCount; i++) {
    collectionFile.print(myPlants[i].id);
    collectionFile.print(",");
    collectionFile.print(myPlants[i].name);
    collectionFile.print(",");
    collectionFile.print(myPlants[i].species);
    collectionFile.print(",");
    collectionFile.print(myPlants[i].currentHeight);
    collectionFile.print(",");
    collectionFile.print(myPlants[i].leafCount);
    collectionFile.print(",");
    collectionFile.print(myPlants[i].lastWatered);
    collectionFile.print(",");
    collectionFile.print(myPlants[i].lastFertilized);
    collectionFile.print(",");
    collectionFile.print(myPlants[i].isVariegated ? "1" : "0");
    collectionFile.print(",");
    collectionFile.println(myPlants[i].location);
  }
  collectionFile.close();
}

void loadPlantCollection() {
  if (!sdInitialized || !useSDCard) return;
  if (!SD.exists("/plant_collection.csv")) return;

  File collectionFile = SD.open("/plant_collection.csv", FILE_READ);
  if (!collectionFile) return;

  collectionFile.readStringUntil('\n');
  plantCount = 0;

  while (collectionFile.available() && plantCount < MAX_PLANTS) {
    String line = collectionFile.readStringUntil('\n');
    line.trim();
    if (line.length() == 0) continue;

    int commas[10], commaCount = 0;
    for (int i = 0; i < line.length(); i++) {
      if (line.charAt(i) == ',') commas[commaCount++] = i;
    }

    if (commaCount >= 8) {
      myPlants[plantCount].id = line.substring(0, commas[0]).toInt();
      myPlants[plantCount].name = line.substring(commas[0] + 1, commas[1]);
      myPlants[plantCount].species = line.substring(commas[1] + 1, commas[2]);
      myPlants[plantCount].currentHeight = line.substring(commas[2] + 1, commas[3]).toFloat();
      myPlants[plantCount].leafCount = line.substring(commas[3] + 1, commas[4]).toInt();
      myPlants[plantCount].lastWatered = line.substring(commas[4] + 1, commas[5]).toInt();
      myPlants[plantCount].lastFertilized = line.substring(commas[5] + 1, commas[6]).toInt();
      myPlants[plantCount].isVariegated = line.substring(commas[6] + 1, commas[7]).toInt() == 1;
      myPlants[plantCount].location = line.substring(commas[7] + 1);
      myPlants[plantCount].personalVPDFactor = 1.0;
      plantCount++;
    }
  }
  collectionFile.close();
}

void controlVPDForPlants() {
  if (plantCount == 0) return;

  updateVPD();

  for (int i = 0; i < plantCount; i++) {
    int speciesIndex = findPlantSpeciesIndex(myPlants[i].species);
    if (speciesIndex == -1) continue;

    TropicalPlantProfile profile = tropicalSpecies[speciesIndex];
    float adjustedVPDMin = profile.vpdMin * myPlants[i].personalVPDFactor;
    float adjustedVPDMax = profile.vpdMax * myPlants[i].personalVPDFactor;

    if (internalTemperature < profile.tempMin) {
      if (relayControlEnabled) setRelay(0, true);
    } else if (internalTemperature > profile.tempMax) {
      if (relayControlEnabled) setRelay(1, true);
    }

    if (internalHumidity < profile.humMin) {
      if (profile.needsMisting && (millis() - myPlants[i].lastMisted > 3600000)) {
        startMistingForPlant(i);
      }
    }

    if (currentVPD < adjustedVPDMin) {
      if (profile.needsAirMovement) setRelay(VENTILATION_RELAY, true);
    } else if (currentVPD > adjustedVPDMax) {
      setRelay(VENTILATION_RELAY, false);
      if (profile.needsMisting) startMistingForPlant(i);
    }
  }

  for (int i = 0; i < plantCount; i++) {
    int speciesIndex = findPlantSpeciesIndex(myPlants[i].species);
    if (speciesIndex == -1) continue;
    if (tropicalSpecies[speciesIndex].needsBottomWatering) {
      if (soilMoisturePercent < 40 && (millis() - myPlants[i].lastWatered > 3 * 24 * 3600000)) {
        startBottomWatering(i);
      }
    }
  }
}

void startMistingForPlant(int plantId) {
  if (plantId < 0 || plantId >= plantCount) return;
  setRelay(MISTING_RELAY, true);
  myPlants[plantId].lastMisted = millis();
  isMisting = true;
  mistingStartTime = millis();
}

void startBottomWatering(int plantId) {
  if (plantId < 0 || plantId >= plantCount) return;
  setRelay(BOTTOM_WATERING_RELAY, true);
  myPlants[plantId].lastWatered = millis();
  delay(30000);
  setRelay(BOTTOM_WATERING_RELAY, false);
}

void updateAirMovement() {
  unsigned long now = millis();
  bool needsAir = false;

  for (int i = 0; i < plantCount; i++) {
    int speciesIndex = findPlantSpeciesIndex(myPlants[i].species);
    if (speciesIndex != -1 && tropicalSpecies[speciesIndex].needsAirMovement) {
      needsAir = true;
      break;
    }
  }

  if (!needsAir) return;

  if (!airMoving && (now - lastAirMovement > AIR_MOVEMENT_INTERVAL)) {
    setRelay(AIR_FLOW_RELAY, true);
    airMoving = true;
    lastAirMovement = now;
  }

  if (airMoving && (now - lastAirMovement > AIR_MOVEMENT_DURATION)) {
    setRelay(AIR_FLOW_RELAY, false);
    airMoving = false;
  }
}

void checkMistingTimeout() {
  if (isMisting && (millis() - mistingStartTime > MISTING_DURATION)) {
    setRelay(MISTING_RELAY, false);
    isMisting = false;
  }
}

String getPlantCareAdvice(int plantId) {
  if (plantId < 0 || plantId >= plantCount) return "Rastlina ne obstaja";

  int speciesIndex = findPlantSpeciesIndex(myPlants[plantId].species);
  if (speciesIndex == -1) return "Vrsta ni v bazi";

  TropicalPlantProfile profile = tropicalSpecies[speciesIndex];
  String advice = "";

  advice += "🌿 " + myPlants[plantId].name + " (" + profile.commonName + ")\n";
  advice += "Tezavnost: " + profile.careLevel + "\n";
  advice += "Temperatura: " + String(profile.tempMin) + "-" + String(profile.tempMax) + "°C\n";
  advice += "Vlaga: " + String(profile.humMin) + "-" + String(profile.humMax) + "%\n";
  advice += "VPD: " + String(profile.vpdMin) + "-" + String(profile.vpdMax) + " kPa\n";

  if (myPlants[plantId].isVariegated) advice += "⚠️ PESTRA - potrebuje vec svetlobe!\n";

  advice += "\nTrenutno:\n";
  advice += "Temp: " + String(internalTemperature, 1) + "°C ";
  if (internalTemperature < profile.tempMin) advice += "❄️ PREHLADNO";
  else if (internalTemperature > profile.tempMax) advice += "🔥 PREVROCE";
  else advice += "✅ OK";
  advice += "\n";

  advice += "Vlaga: " + String(internalHumidity, 1) + "% ";
  if (internalHumidity < profile.humMin) advice += "💧 PRESUHO";
  else if (internalHumidity > profile.humMax) advice += "💧 PREVEC";
  else advice += "✅ OK";
  advice += "\n";

  advice += "VPD: " + String(currentVPD, 2) + " kPa ";
  if (currentVPD < profile.vpdMin) advice += "💨 PREVEC VLAZNO";
  else if (currentVPD > profile.vpdMax) advice += "💨 PRESUHO";
  else advice += "✅ IDEALNO";

  if (profile.needsMisting && (millis() - myPlants[plantId].lastMisted > 24 * 3600000)) {
    advice += "\n🌫️ Priporocam meglenje!";
  }

  advice += "\n📝 " + profile.notes;
  return advice;
}

void showTropicalPlantsMenu() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(0, 200, 100));
  tft.setCursor(150, 35);
  tft.println("TROPSKE RASTLINE");

  tft.drawRoundRect(10, 50, 460, 180, 10, rgbTo565(0, 200, 100));
  tft.fillRoundRect(11, 51, 458, 178, 10, rgbTo565(20, 40, 30));

  int yOffset = 65;
  int lineHeight = 16;

  tft.setTextSize(1);

  tft.setCursor(20, yOffset);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Trenutni VPD: ");
  tft.setTextColor(getVPDColor(currentVPD));
  tft.printf("%.2f kPa", currentVPD);

  tft.setCursor(20, yOffset + lineHeight);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Stanje: ");
  tft.setTextColor(getVPDColor(currentVPD));
  tft.println(getVPDDescription(currentVPD));

  tft.setCursor(20, yOffset + 2 * lineHeight + 5);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.printf("Moje rastline (%d/%d):", plantCount, MAX_PLANTS);

  int listY = yOffset + 3 * lineHeight + 10;

  if (plantCount == 0) {
    tft.setCursor(40, listY);
    tft.setTextColor(rgbTo565(150, 150, 150));
    tft.println("Ni dodanih rastlin");
  } else {
    int displayCount = min(plantCount, 5);
    for (int i = 0; i < displayCount; i++) {
      int speciesIndex = findPlantSpeciesIndex(myPlants[i].species);
      uint16_t statusColor = rgbTo565(100, 100, 100);

      if (speciesIndex != -1) {
        float vpd = currentVPD;
        if (vpd >= tropicalSpecies[speciesIndex].vpdMin && vpd <= tropicalSpecies[speciesIndex].vpdMax) {
          statusColor = rgbTo565(0, 255, 0);
        } else {
          statusColor = rgbTo565(255, 100, 0);
        }
      }

      tft.fillCircle(25, listY + i * 20, 4, statusColor);

      String displayName = myPlants[i].name;
      if (displayName.length() > 18) {
        displayName = displayName.substring(0, 15) + "...";
      }

      tft.setCursor(35, listY + i * 20 - 3);
      tft.setTextColor(rgbTo565(220, 220, 255));
      tft.printf("%d. %s", i + 1, displayName.c_str());
    }

    if (plantCount > 5) {
      tft.setCursor(400, listY + 80);
      tft.setTextColor(rgbTo565(255, 200, 100));
      tft.println("▼ Vec");
    }
  }

  int buttonWidth = 140;
  int buttonHeight = 35;
  int buttonSpacing = 20;

  int buttonY1 = 240;
  drawMenuButton(40, buttonY1, buttonWidth, buttonHeight,
                            rgbTo565(76, 175, 80), "DODAJ RASTLINO");

  drawMenuButton(40 + buttonWidth + buttonSpacing, buttonY1, buttonWidth, buttonHeight,
                            rgbTo565(66, 135, 245), "PREGLEJ");

  int buttonY2 = buttonY1 + buttonHeight + 10;
  drawMenuButton(40, buttonY2, buttonWidth, buttonHeight,
                            rgbTo565(255, 150, 0), "NASVETI");

  drawMenuButton(40 + buttonWidth + buttonSpacing, buttonY2, buttonWidth, buttonHeight,
                            rgbTo565(245, 67, 54), "NAZAJ");

  currentState = STATE_TROPICAL_PLANTS;
}

void showSelectPlantForViewScreen() {
  if (plantCount == 0) {
    showTemporaryMessage("Ni dodanih rastlin!\nDodajte novo rastlino", rgbTo565(255, 150, 50), 2000);
    showTropicalPlantsMenu();
    return;
  }

  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(0, 200, 100));
  tft.setCursor(150, 40);
  tft.println("IZBERI RASTLINO");

  tft.drawRoundRect(10, 60, 460, 180, 10, rgbTo565(0, 200, 100));
  tft.fillRoundRect(11, 61, 458, 178, 10, rgbTo565(20, 40, 30));

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.setCursor(20, 75);
  tft.printf("Izberi rastlino za pregled (%d):", plantCount);

  int startY = 95;
  int buttonHeight = 28;
  int buttonSpacing = 4;
  int maxButtons = 5;

  int startIndex = 0;
  int endIndex = min(plantCount, startIndex + maxButtons);

  for (int i = startIndex; i < endIndex; i++) {
    int yPos = startY + (i - startIndex) * (buttonHeight + buttonSpacing);

    uint16_t buttonColor = rgbTo565(66, 135, 245);

    tft.fillRoundRect(30, yPos, 420, buttonHeight, 8, buttonColor);
    tft.drawRoundRect(30, yPos, 420, buttonHeight, 8, ST77XX_WHITE);

    tft.setTextSize(1);
    tft.setTextColor(ST77XX_WHITE);

    int16_t textX, textY;
    uint16_t textW, textH;
    String displayText = String(i + 1) + ". " + myPlants[i].name;
    if (displayText.length() > 30) {
      displayText = displayText.substring(0, 27) + "...";
    }

    tft.getTextBounds(displayText, 0, 0, &textX, &textY, &textW, &textH);
    int textPosY = yPos + (buttonHeight - textH) / 2 - textY;

    tft.setCursor(45, textPosY);
    tft.print(displayText);

    if (myPlants[i].isVariegated) {
      tft.setCursor(380, textPosY);
      tft.setTextColor(rgbTo565(255, 200, 100));
      tft.print("★");
    }
  }

  int buttonY = startY + maxButtons * (buttonHeight + buttonSpacing) + 15;

  tft.fillRoundRect(30, buttonY, 200, 30, 8, rgbTo565(76, 175, 80));
  tft.drawRoundRect(30, buttonY, 200, 30, 8, ST77XX_WHITE);

  int16_t textX, textY;
  uint16_t textW, textH;
  tft.getTextBounds("AVTO NASTAVITVE", 0, 0, &textX, &textY, &textW, &textH);
  int textPosX = 30 + (200 - textW) / 2 - textX;
  int textPosY = buttonY + (30 - textH) / 2 - textY;
  tft.setCursor(textPosX, textPosY);
  tft.setTextColor(ST77XX_WHITE);
  tft.print("AVTO NASTAVITVE");

  tft.fillRoundRect(250, buttonY, 200, 30, 8, rgbTo565(245, 67, 54));
  tft.drawRoundRect(250, buttonY, 200, 30, 8, ST77XX_WHITE);

  tft.getTextBounds("NAZAJ", 0, 0, &textX, &textY, &textW, &textH);
  textPosX = 250 + (200 - textW) / 2 - textX;
  textPosY = buttonY + (30 - textH) / 2 - textY;
  tft.setCursor(textPosX, textPosY);
  tft.print("NAZAJ");

  currentState = STATE_SELECT_PLANT_FOR_VIEW;
}

void showSelectPlantForAdviceScreen() {
  if (plantCount == 0) {
    showTemporaryMessage("Ni dodanih rastlin!\nDodajte novo rastlino", rgbTo565(255, 150, 50), 2000);
    showTropicalPlantsMenu();
    return;
  }

  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 150, 0));
  tft.setCursor(150, 40);
  tft.println("NASVET ZA RASTLINO");

  tft.drawRoundRect(10, 60, 460, 180, 10, rgbTo565(255, 150, 0));
  tft.fillRoundRect(11, 61, 458, 178, 10, rgbTo565(40, 30, 20));

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.setCursor(20, 75);
  tft.printf("Izberi rastlino za nasvet (%d):", plantCount);

  int startY = 95;
  int buttonHeight = 28;
  int buttonSpacing = 4;
  int maxButtons = 5;

  int startIndex = 0;
  int endIndex = min(plantCount, startIndex + maxButtons);

  for (int i = startIndex; i < endIndex; i++) {
    int yPos = startY + (i - startIndex) * (buttonHeight + buttonSpacing);

    uint16_t buttonColor = rgbTo565(255, 150, 0);

    tft.fillRoundRect(30, yPos, 420, buttonHeight, 8, buttonColor);
    tft.drawRoundRect(30, yPos, 420, buttonHeight, 8, ST77XX_WHITE);

    tft.setTextSize(1);
    tft.setTextColor(ST77XX_WHITE);

    int16_t textX, textY;
    uint16_t textW, textH;
    String displayText = String(i + 1) + ". " + myPlants[i].name;
    if (displayText.length() > 30) {
      displayText = displayText.substring(0, 27) + "...";
    }

    tft.getTextBounds(displayText, 0, 0, &textX, &textY, &textW, &textH);
    int textPosY = yPos + (buttonHeight - textH) / 2 - textY;

    tft.setCursor(45, textPosY);
    tft.print(displayText);

    int speciesIndex = findPlantSpeciesIndex(myPlants[i].species);
    if (speciesIndex != -1) {
      float vpd = currentVPD;
      if (vpd >= tropicalSpecies[speciesIndex].vpdMin && vpd <= tropicalSpecies[speciesIndex].vpdMax) {
        tft.setCursor(380, textPosY);
        tft.setTextColor(rgbTo565(0, 255, 0));
        tft.print("✓");
      } else {
        tft.setCursor(380, textPosY);
        tft.setTextColor(rgbTo565(255, 255, 0));
        tft.print("!");
      }
    }
  }

  int buttonY = startY + maxButtons * (buttonHeight + buttonSpacing) + 15;
  drawMenuButton(150, buttonY, 180, 30, rgbTo565(245, 67, 54), "NAZAJ");

  currentState = STATE_SELECT_PLANT_FOR_ADVICE;
}

void showCurrentSettings() {
  Serial.println("\n=== TRENUTNE NASTAVITVE ===");
  Serial.printf("Temperatura: %.1f-%.1f°C\n", targetTempMin, targetTempMax);
  Serial.printf("Vlaznost: %.1f-%.1f%%\n", targetHumMin, targetHumMax);
  Serial.printf("Svetloba (vklop/izklop): %.0f/%.0f lx\n", lightOnThreshold, lightOffThreshold);
  Serial.printf("Sencenje (min/max): %.0f/%.0f lx\n", shadeMinLux, shadeMaxLux);
  Serial.printf("Vlaznost tal (suho/mokro): %d/%d ADC\n", SOIL_DRY_VALUE, SOIL_WET_VALUE);
  Serial.printf("Ventilacija avtomatska: %s\n", ventilationAutoMode ? "DA" : "NE");
  Serial.printf("Razsvetljava avtomatska: %s\n", lightAutoMode ? "DA" : "NE");
  Serial.println("============================\n");
}

void showAddPlantScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(2);
  tft.setTextColor(rgbTo565(0, 200, 100));
  tft.setCursor(140, 30);
  tft.println("DODAJ RASTLINO");

  tft.drawRoundRect(10, 55, 460, 200, 10, rgbTo565(0, 200, 100));
  tft.fillRoundRect(11, 56, 458, 198, 10, rgbTo565(20, 40, 30));

  tft.setTextSize(1);

  int leftColX = 30;
  int rightColX = 250;
  int yStart = 70;
  int lineHeight = 25;
  int buttonHeight = 25;

  tft.setCursor(leftColX, yStart);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.println("IME RASTLINE:");

  tft.setCursor(leftColX, yStart + 20);
  tft.setTextColor(rgbTo565(200, 220, 255));

  String displayName = (tempPlantName.length() > 0) ? tempPlantName : "[klikni za vnos]";
  if (displayName.length() > 20) displayName = displayName.substring(0, 17) + "...";

  tft.print(displayName);

  tft.setCursor(leftColX, yStart + 50);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.println("VRSTA:");

  String speciesName = tropicalSpecies[tempSpeciesIndex].commonName;
  if (speciesName.length() > 25) speciesName = speciesName.substring(0, 22) + "...";

  tft.setCursor(leftColX, yStart + 70);
  tft.setTextColor(rgbTo565(100, 255, 100));
  tft.println(speciesName);

  tft.fillRoundRect(leftColX, yStart + 90, 45, buttonHeight, 5, rgbTo565(66, 135, 245));
  tft.drawRoundRect(leftColX, yStart + 90, 45, buttonHeight, 5, ST77XX_WHITE);
  tft.setTextColor(ST77XX_WHITE);

  int16_t textX, textY;
  uint16_t textW, textH;
  tft.getTextBounds("◀", 0, 0, &textX, &textY, &textW, &textH);
  int textPosX = leftColX + (45 - textW) / 2 - textX;
  int textPosY = yStart + 90 + (buttonHeight - textH) / 2 - textY;
  tft.setCursor(textPosX, textPosY);
  tft.print("◀");

  tft.fillRoundRect(leftColX + 60, yStart + 90, 45, buttonHeight, 5, rgbTo565(66, 135, 245));
  tft.drawRoundRect(leftColX + 60, yStart + 90, 45, buttonHeight, 5, ST77XX_WHITE);
  tft.getTextBounds("▶", 0, 0, &textX, &textY, &textW, &textH);
  textPosX = leftColX + 60 + (45 - textW) / 2 - textX;
  textPosY = yStart + 90 + (buttonHeight - textH) / 2 - textY;
  tft.setCursor(textPosX, textPosY);
  tft.print("▶");

  tft.setCursor(leftColX, yStart + 130);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.print("PESTROST:");

  int pestrostButtonX = leftColX + 100;
  int pestrostButtonY = yStart + 125;

  tft.fillRoundRect(pestrostButtonX, pestrostButtonY, 70, buttonHeight, 5,
                    tempIsVariegated ? rgbTo565(255, 100, 100) : rgbTo565(100, 100, 100));
  tft.drawRoundRect(pestrostButtonX, pestrostButtonY, 70, buttonHeight, 5, ST77XX_WHITE);

  String buttonText = tempIsVariegated ? "DA" : "NE";
  tft.getTextBounds(buttonText, 0, 0, &textX, &textY, &textW, &textH);
  textPosX = pestrostButtonX + (70 - textW) / 2 - textX;
  textPosY = pestrostButtonY + (buttonHeight - textH) / 2 - textY;
  tft.setCursor(textPosX, textPosY);
  tft.setTextColor(ST77XX_WHITE);
  tft.print(buttonText);

  tft.setCursor(rightColX, yStart);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.println("LOKACIJA:");

  tft.setCursor(rightColX, yStart + 20);
  tft.setTextColor(rgbTo565(200, 220, 255));

  String locationStr = "Cona " + String(tempLocationZone);
  if (tempLocationZone == 1) locationStr += " (spodaj)";
  else if (tempLocationZone == 2) locationStr += " (sredina)";
  else locationStr += " (zgoraj)";

  tft.println(locationStr);

  tft.fillRoundRect(rightColX, yStart + 45, 45, buttonHeight, 5, rgbTo565(66, 135, 245));
  tft.drawRoundRect(rightColX, yStart + 45, 45, buttonHeight, 5, ST77XX_WHITE);
  tft.getTextBounds("-", 0, 0, &textX, &textY, &textW, &textH);
  textPosX = rightColX + (45 - textW) / 2 - textX;
  textPosY = yStart + 45 + (buttonHeight - textH) / 2 - textY;
  tft.setCursor(textPosX, textPosY);
  tft.setTextColor(ST77XX_WHITE);
  tft.print("-");

  tft.fillRoundRect(rightColX + 60, yStart + 45, 45, buttonHeight, 5, rgbTo565(66, 135, 245));
  tft.drawRoundRect(rightColX + 60, yStart + 45, 45, buttonHeight, 5, ST77XX_WHITE);
  tft.getTextBounds("+", 0, 0, &textX, &textY, &textW, &textH);
  textPosX = rightColX + 60 + (45 - textW) / 2 - textX;
  textPosY = yStart + 45 + (buttonHeight - textH) / 2 - textY;
  tft.setCursor(textPosX, textPosY);
  tft.print("+");

  tft.setCursor(rightColX, yStart + 90);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.println("PODROBNOSTI:");

  TropicalPlantProfile* profile = &tropicalSpecies[tempSpeciesIndex];

  tft.setCursor(rightColX, yStart + 110);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Tezavnost: ");
  tft.setTextColor(profile->careLevel == "easy" ? rgbTo565(0, 255, 0) : (profile->careLevel == "moderate" ? rgbTo565(255, 255, 0) : rgbTo565(255, 100, 0)));
  tft.println(profile->careLevel);

  tft.setCursor(rightColX, yStart + 130);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.printf("VPD: %.1f-%.1f kPa", profile->vpdMin, profile->vpdMax);

  tft.setCursor(rightColX, yStart + 150);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.printf("Temp: %.0f-%.0f°C", profile->tempMin, profile->tempMax);

  int buttonY = 265;
  int buttonWidth = 140;
  int buttonHeight2 = 35;

  tft.fillRoundRect(40, buttonY, buttonWidth, buttonHeight2, 8, rgbTo565(76, 175, 80));
  tft.drawRoundRect(40, buttonY, buttonWidth, buttonHeight2, 8, ST77XX_WHITE);
  tft.getTextBounds("SHRANI", 0, 0, &textX, &textY, &textW, &textH);
  textPosX = 40 + (buttonWidth - textW) / 2 - textX;
  textPosY = buttonY + (buttonHeight2 - textH) / 2 - textY;
  tft.setCursor(textPosX, textPosY);
  tft.setTextColor(ST77XX_WHITE);
  tft.print("SHRANI");

  tft.fillRoundRect(40 + buttonWidth + 20, buttonY, buttonWidth, buttonHeight2, 8, rgbTo565(245, 67, 54));
  tft.drawRoundRect(40 + buttonWidth + 20, buttonY, buttonWidth, buttonHeight2, 8, ST77XX_WHITE);
  tft.getTextBounds("NAZAJ", 0, 0, &textX, &textY, &textW, &textH);
  textPosX = 40 + buttonWidth + 20 + (buttonWidth - textW) / 2 - textX;
  textPosY = buttonY + (buttonHeight2 - textH) / 2 - textY;
  tft.setCursor(textPosX, textPosY);
  tft.print("NAZAJ");

  tft.fillRoundRect(40 + 2 * (buttonWidth + 20), buttonY, buttonWidth, buttonHeight2, 8, rgbTo565(255, 150, 0));
  tft.drawRoundRect(40 + 2 * (buttonWidth + 20), buttonY, buttonWidth, buttonHeight2, 8, ST77XX_WHITE);
  tft.getTextBounds("VNOS IMENA", 0, 0, &textX, &textY, &textW, &textH);
  textPosX = 40 + 2 * (buttonWidth + 20) + (buttonWidth - textW) / 2 - textX;
  textPosY = buttonY + (buttonHeight2 - textH) / 2 - textY;
  tft.setCursor(textPosX, textPosY);
  tft.print("VNOS IMENA");

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(150, 150, 150));
  tft.setCursor(40, 310);
  tft.printf("Ime: %s | Vrsta: %d/%d | Pestrost: %s | Cona: %d",
             (tempPlantName.length() > 0 ? tempPlantName.c_str() : "(prazno)"),
             tempSpeciesIndex + 1, tropicalSpeciesCount,
             tempIsVariegated ? "DA" : "NE",
             tempLocationZone);

  currentState = STATE_ADD_PLANT;
}

void showPlantDetailsScreen(int plantId) {
  if (plantId < 0 || plantId >= plantCount) return;

  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  IndividualPlant plant = myPlants[plantId];
  int speciesIndex = findPlantSpeciesIndex(plant.species);

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(0, 200, 100));
  tft.setCursor(120, 30);
  tft.println(plant.name);

  tft.drawRoundRect(10, 50, 460, 190, 10, rgbTo565(0, 200, 100));
  tft.fillRoundRect(11, 51, 458, 188, 10, rgbTo565(20, 40, 30));

  int yOffset = 65;
  int lineHeight = 15;

  tft.setTextSize(1);

  if (speciesIndex >= 0) {
    TropicalPlantProfile profile = tropicalSpecies[speciesIndex];

    tft.setCursor(20, yOffset);
    tft.setTextColor(rgbTo565(255, 200, 100));
    tft.println(profile.commonName);

    tft.setCursor(20, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.print("Tezavnost: ");
    tft.setTextColor(profile.careLevel == "easy" ? rgbTo565(0, 255, 0) : (profile.careLevel == "moderate" ? rgbTo565(255, 255, 0) : rgbTo565(255, 100, 0)));
    tft.println(profile.careLevel);

    tft.setCursor(20, yOffset + 2 * lineHeight);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.print("Temperatura: ");
    tft.setTextColor(TEMP_COLOR);
    tft.printf("%.0f-%.0f°C", profile.tempMin, profile.tempMax);

    tft.setCursor(20, yOffset + 3 * lineHeight);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.print("Vlaga: ");
    tft.setTextColor(HUMIDITY_COLOR);
    tft.printf("%.0f-%.0f%%", profile.humMin, profile.humMax);

    tft.setCursor(20, yOffset + 4 * lineHeight);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.print("VPD: ");
    tft.setTextColor(getVPDColor(currentVPD));
    tft.printf("%.1f-%.1f kPa", profile.vpdMin, profile.vpdMax);

    tft.setCursor(250, yOffset);
    tft.setTextColor(rgbTo565(255, 200, 100));
    tft.println("TRENUTNO");

    tft.setCursor(250, yOffset + lineHeight);
    tft.setTextColor(internalTemperature < profile.tempMin ? TOO_LOW_COLOR : (internalTemperature > profile.tempMax ? TOO_HIGH_COLOR : NORMAL_COLOR));
    tft.printf("%.1f°C", internalTemperature);

    tft.setCursor(250, yOffset + 2 * lineHeight);
    tft.setTextColor(internalHumidity < profile.humMin ? TOO_LOW_COLOR : (internalHumidity > profile.humMax ? TOO_HIGH_COLOR : NORMAL_COLOR));
    tft.printf("%.1f%%", internalHumidity);

    tft.setCursor(250, yOffset + 3 * lineHeight);
    tft.setTextColor(getVPDColor(currentVPD));
    tft.printf("%.2f kPa", currentVPD);

    tft.setCursor(20, yOffset + 6 * lineHeight);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.print("Zadnje meglenje: ");
    unsigned long hoursSinceMist = (millis() - plant.lastMisted) / 3600000;
    tft.setTextColor(hoursSinceMist < 24 ? NORMAL_COLOR : WARNING_COLOR);
    tft.printf("%lu h", hoursSinceMist);

    tft.setCursor(20, yOffset + 7 * lineHeight);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.print("Zalivanje: ");
    unsigned long daysSinceWater = (millis() - plant.lastWatered) / 86400000;
    tft.setTextColor(daysSinceWater < 5 ? NORMAL_COLOR : (daysSinceWater < 7 ? WARNING_COLOR : TOO_HIGH_COLOR));
    tft.printf("%lu dni", daysSinceWater);
  }

  int buttonY = 260;
  int buttonWidth = 105;
  int buttonSpacing = 10;

  drawMenuButton(15, buttonY, buttonWidth, 35, rgbTo565(76, 175, 80), "MEGLENJE");
  drawMenuButton(15 + buttonWidth + buttonSpacing, buttonY, buttonWidth, 35,
                            rgbTo565(66, 135, 245), "NASVET");
  drawMenuButton(15 + 2 * (buttonWidth + buttonSpacing), buttonY, buttonWidth, 35,
                            rgbTo565(245, 67, 54), "NAZAJ");
  drawMenuButton(15 + 3 * (buttonWidth + buttonSpacing), buttonY, buttonWidth, 35,
                            rgbTo565(255, 0, 0), "IZBRISI");

  currentState = STATE_PLANT_DETAILS;
  selectedPlantId = plantId;
}

void deletePlant(int plantId) {
  if (plantId < 0 || plantId >= plantCount) return;

  String deletedName = myPlants[plantId].name;

  tft.fillRect(50, 100, 380, 150, rgbTo565(20, 40, 70));
  tft.drawRect(50, 100, 380, 150, rgbTo565(255, 80, 80));

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 255, 255));
  tft.setCursor(150, 120);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.println("BRISANJE RASTLINE");

  tft.drawFastHLine(60, 135, 360, rgbTo565(100, 100, 100));

  tft.setCursor(80, 150);
  tft.setTextColor(rgbTo565(255, 255, 255));
  tft.print("Ste prepricani, da zelite izbrisati ");
  tft.setCursor(80, 170);
  tft.setTextColor(rgbTo565(255, 100, 100));
  tft.print(deletedName);
  tft.setTextColor(rgbTo565(255, 255, 255));
  tft.print("?");

  tft.fillRoundRect(120, 200, 100, 35, 8, rgbTo565(255, 80, 80));
  tft.drawRoundRect(120, 200, 100, 35, 8, ST77XX_WHITE);
  tft.setCursor(155, 210);
  tft.setTextColor(ST77XX_WHITE);
  tft.println("DA");

  tft.fillRoundRect(260, 200, 100, 35, 8, rgbTo565(76, 175, 80));
  tft.drawRoundRect(260, 200, 100, 35, 8, ST77XX_WHITE);
  tft.setCursor(295, 210);
  tft.setTextColor(ST77XX_WHITE);
  tft.println("NE");

  unsigned long confirmStart = millis();
  bool waiting = true;

  while (waiting && (millis() - confirmStart < 10000)) {
    if (ts.touched()) {
      TS_Point p = ts.getPoint();
      int touchX = map(p.x, TS_MINX, TS_MAXX, tft.width(), 0);
      int touchY = map(p.y, TS_MINY, TS_MAXY, tft.height(), 0);

      if (touchX > 120 && touchX < 220 && touchY > 200 && touchY < 235) {
        for (int i = plantId; i < plantCount - 1; i++) {
          myPlants[i] = myPlants[i + 1];
        }
        plantCount--;

        savePlantCollection();

        showTemporaryMessage("Rastlina " + deletedName + " izbrisana!", rgbTo565(80, 220, 100), 2000);

        waiting = false;
        showTropicalPlantsMenu();
        return;
      }

      if (touchX > 260 && touchX < 360 && touchY > 200 && touchY < 235) {
        waiting = false;
        if (currentState == STATE_SELECT_PLANT_FOR_VIEW) {
          showSelectPlantForViewScreen();
        } else {
          showPlantDetailsScreen(plantId);
        }
        return;
      }
    }
    delay(10);
  }

  if (currentState == STATE_SELECT_PLANT_FOR_VIEW) {
    showSelectPlantForViewScreen();
  } else {
    showPlantDetailsScreen(plantId);
  }
}

void showAdvicePopup(String advice) {
  AppState previousState = currentState;
  int previousPlantId = selectedPlantId;

  tft.fillRect(0, STATUS_BAR_HEIGHT, tft.width(), tft.height() - STATUS_BAR_HEIGHT, rgbTo565(10, 20, 40));

  int winX = 20;
  int winY = 40;
  int winWidth = 440;
  int winHeight = 240;

  tft.fillRoundRect(winX, winY, winWidth, winHeight, 15, rgbTo565(255, 255, 255));
  tft.drawRoundRect(winX, winY, winWidth, winHeight, 15, rgbTo565(0, 200, 100));

  tft.drawRoundRect(winX + 2, winY + 2, winWidth - 4, winHeight - 4, 12, rgbTo565(200, 200, 200));

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(0, 150, 0));
  tft.setCursor(winX + 190, winY + 12);
  tft.println("NASVET");

  if (previousPlantId >= 0 && previousPlantId < plantCount) {
    tft.setTextSize(1);
    tft.setTextColor(rgbTo565(100, 100, 100));
    tft.setCursor(winX + 150, winY + 30);
    tft.print("za ");
    tft.setTextColor(rgbTo565(0, 100, 200));
    tft.print(myPlants[previousPlantId].name);
  }

  tft.drawFastHLine(winX + 20, winY + 45, winWidth - 40, rgbTo565(0, 200, 100));

  tft.setTextSize(1);

  int y = winY + 60;
  int lineHeight = 16;
  int leftMargin = winX + 20;
  int rightMargin = winX + winWidth - 20;
  int maxWidth = rightMargin - leftMargin;

  String currentLine = "";

  for (int i = 0; i < advice.length(); i++) {
    char c = advice.charAt(i);

    if (c == '\n') {
      if (currentLine.length() > 0) {
        tft.setCursor(leftMargin, y);

        if (currentLine.startsWith("🌿")) {
          tft.setTextColor(rgbTo565(0, 150, 0));
        } else if (currentLine.startsWith("Tezavnost:")) {
          tft.setTextColor(rgbTo565(150, 100, 0));
        } else if (currentLine.startsWith("⚠️")) {
          tft.setTextColor(rgbTo565(255, 0, 0));
        } else if (currentLine.startsWith("Trenutno:")) {
          tft.setTextColor(rgbTo565(0, 100, 200));
        } else if (currentLine.endsWith("OK")) {
          tft.setTextColor(rgbTo565(0, 150, 0));
        } else if (currentLine.endsWith("PREHLADNO") || currentLine.endsWith("PREVROCE") || currentLine.endsWith("PRESUHO") || currentLine.endsWith("PREVEC") || currentLine.endsWith("PREVEC VLAZNO")) {
          tft.setTextColor(rgbTo565(200, 0, 0));
        } else if (currentLine.endsWith("IDEALNO")) {
          tft.setTextColor(rgbTo565(0, 200, 0));
        } else if (currentLine.startsWith("📝")) {
          tft.setTextColor(rgbTo565(100, 100, 200));
        } else {
          tft.setTextColor(rgbTo565(50, 50, 50));
        }

        tft.println(currentLine);
        y += lineHeight;
        currentLine = "";

        if (y > winY + winHeight - 30) {
          leftMargin = winX + 240;
          y = winY + 60;
        }
      }
    } else {
      currentLine += c;

      int16_t x1, y1;
      uint16_t w, h;
      tft.getTextBounds(currentLine.c_str(), 0, 0, &x1, &y1, &w, &h);

      if (w > maxWidth - 20) {
        int lastSpace = currentLine.lastIndexOf(' ');
        if (lastSpace > 0) {
          String firstPart = currentLine.substring(0, lastSpace);
          tft.setCursor(leftMargin, y);
          tft.setTextColor(rgbTo565(50, 50, 50));
          tft.println(firstPart);
          y += lineHeight;
          currentLine = currentLine.substring(lastSpace + 1);

          if (y > winY + winHeight - 30) {
            leftMargin = winX + 240;
            y = winY + 60;
          }
        }
      }
    }
  }

  if (currentLine.length() > 0) {
    tft.setCursor(leftMargin, y);
    tft.setTextColor(rgbTo565(50, 50, 50));
    tft.println(currentLine);
  }

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(150, 150, 150));
  tft.setCursor(winX + 120, winY + winHeight - 15);
  tft.println("Dotik kjerkoli za vrnitev");

  unsigned long popupStart = millis();
  bool popupActive = true;

  while (popupActive && (millis() - popupStart < 30000)) {
    handleTouch();

    if (ts.touched()) {
      TS_Point p = ts.getPoint();
      popupActive = false;
      delay(100);
    }

    delay(20);
  }

  if (previousPlantId >= 0) {
    showPlantDetailsScreen(previousPlantId);
  } else {
    showTropicalPlantsMenu();
  }
}

void showInternalGraph48hScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(INTERNAL_COLOR);
  tft.setCursor(150, 25);
  tft.println("48-URNI GRAF - NOTRANJI SENZORJI");

  int graphX = 30;
  int graphY = 60;
  int graphWidth = 420;
  int graphHeight = 160;

  tft.fillRoundRect(graphX, graphY, graphWidth, graphHeight, 6, rgbTo565(20, 30, 40));
  tft.drawRoundRect(graphX, graphY, graphWidth, graphHeight, 6, INTERNAL_COLOR);

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(100, 120, 140));

  for (int hour = 0; hour <= 48; hour += 6) {
    int xPos = graphX + (hour * (graphWidth / 48));

    for (int y = graphY; y < graphY + graphHeight; y += 4) {
      tft.drawPixel(xPos, y, rgbTo565(60, 70, 80));
    }

    tft.setCursor(xPos - 10, graphY + graphHeight + 5);
    if (hour == 0) {
      tft.print("zdaj");
    } else if (hour == 48) {
      tft.print("-48h");
    } else {
      tft.print("-");
      tft.print(48 - hour);
      tft.print("h");
    }
  }

  for (int temp = -10; temp <= 40; temp += 10) {
    int yPos = graphY + graphHeight - ((temp + 10) * (graphHeight / 50));

    for (int x = graphX; x < graphX + graphWidth; x += 4) {
      tft.drawPixel(x, yPos, rgbTo565(60, 70, 80));
    }

    tft.setCursor(graphX - 25, yPos - 4);
    tft.setTextColor(rgbTo565(150, 150, 180));
    tft.print(temp);
    tft.print("°C");
  }

  for (int hum = 0; hum <= 100; hum += 20) {
    int yPos = graphY + graphHeight - (hum * (graphHeight / 100));

    tft.setCursor(graphX + graphWidth + 5, yPos - 4);
    tft.setTextColor(rgbTo565(150, 150, 180));
    tft.print(hum);
    tft.print("%");
  }

  int validCount = 0;
  for (int i = 0; i < GRAPH_HISTORY_SIZE; i++) {
    if (!isnan(tempHistory48h[i]) && tempHistory48h[i] != 0) {
      validCount++;
    }
  }

  if (validCount < 10) {
    tft.setCursor(graphX + graphWidth/2 - 80, graphY + graphHeight/2);
    tft.setTextColor(rgbTo565(255, 150, 50));
    tft.print("Zbiranje podatkov...");
    tft.setCursor(graphX + graphWidth/2 - 60, graphY + graphHeight/2 + 20);
    tft.printf("%d/%d meritev", validCount, GRAPH_HISTORY_SIZE);
  } else {
    if (validCount > 1) {
      float prevTempX = -1, prevTempY = -1;
      float prevHumX = -1, prevHumY = -1;
      float prevLuxX = -1, prevLuxY = -1;

      for (int i = 0; i < GRAPH_HISTORY_SIZE; i++) {
        int historyIdx = (graphHistoryIndex - i - 1 + GRAPH_HISTORY_SIZE) % GRAPH_HISTORY_SIZE;

        if (isnan(tempHistory48h[historyIdx]) && isnan(humHistory48h[historyIdx]) && 
            (luxHistory48h[historyIdx] <= 0 || luxHistory48h[historyIdx] > 20000)) {
          continue;
        }

        float xPos = graphX + (i * (graphWidth / (float)GRAPH_HISTORY_SIZE));
        xPos = constrain(xPos, graphX, graphX + graphWidth);

        if (!isnan(tempHistory48h[historyIdx]) && tempHistory48h[historyIdx] != 0) {
          float tempY = graphY + graphHeight - ((tempHistory48h[historyIdx] + 10) * (graphHeight / 50.0));
          tempY = constrain(tempY, graphY + 2, graphY + graphHeight - 2);

          if (prevTempX != -1) {
            tft.drawLine(prevTempX, prevTempY, xPos, tempY, TEMP_COLOR);
          }

          if (i % 3 == 0 || i == GRAPH_HISTORY_SIZE - 1) {
            tft.fillCircle(xPos, tempY, 2, TEMP_COLOR);
          }

          prevTempX = xPos;
          prevTempY = tempY;
        }

        if (!isnan(humHistory48h[historyIdx]) && humHistory48h[historyIdx] != 0) {
          float humY = graphY + graphHeight - (humHistory48h[historyIdx] * (graphHeight / 100.0));
          humY = constrain(humY, graphY + 2, graphY + graphHeight - 2);

          if (prevHumX != -1) {
            tft.drawLine(prevHumX, prevHumY, xPos, humY, HUMIDITY_COLOR);
          }

          if (i % 3 == 0 || i == GRAPH_HISTORY_SIZE - 1) {
            tft.fillCircle(xPos, humY, 2, HUMIDITY_COLOR);
          }

          prevHumX = xPos;
          prevHumY = humY;
        }

        if (luxHistory48h[historyIdx] > 0 && luxHistory48h[historyIdx] < 20000) {
          float luxPercent = (luxHistory48h[historyIdx] / 20000.0) * 100.0;
          luxPercent = constrain(luxPercent, 0, 100);
          float luxY = graphY + graphHeight - (luxPercent * (graphHeight / 100.0));
          luxY = constrain(luxY, graphY + 2, graphY + graphHeight - 2);

          if (prevLuxX != -1) {
            tft.drawLine(prevLuxX, prevLuxY, xPos, luxY, LIGHT_COLOR);
          }

          if (i % 3 == 0 || i == GRAPH_HISTORY_SIZE - 1) {
            tft.fillCircle(xPos, luxY, 2, LIGHT_COLOR);
          }

          prevLuxX = xPos;
          prevLuxY = luxY;
        }
      }

      tft.setTextSize(1);
      tft.setTextColor(rgbTo565(200, 200, 255));
      tft.setCursor(graphX + 10, graphY + 10);
      tft.printf("Tock: %d", validCount);
    }
  }

  int legendY = graphY + graphHeight + 20;
  
  tft.fillRect(50, legendY, 8, 8, TEMP_COLOR);
  tft.setCursor(62, legendY);
  tft.setTextColor(TEMP_COLOR);
  tft.print("Temp: ");
  tft.setTextColor(rgbTo565(200, 200, 255));
  if (!isnan(internalTemperature)) {
    tft.print(internalTemperature, 1);
    tft.print("°C");
  } else {
    tft.print("--.-°C");
  }
  
  tft.fillRect(180, legendY, 8, 8, HUMIDITY_COLOR);
  tft.setCursor(192, legendY);
  tft.setTextColor(HUMIDITY_COLOR);
  tft.print("Vlaga: ");
  tft.setTextColor(rgbTo565(200, 200, 255));
  if (!isnan(internalHumidity)) {
    tft.print(internalHumidity, 1);
    tft.print("%");
  } else {
    tft.print("--.-%");
  }
  
  tft.fillRect(310, legendY, 8, 8, LIGHT_COLOR);
  tft.setCursor(322, legendY);
  tft.setTextColor(LIGHT_COLOR);
  tft.print("Svet: ");
  tft.setTextColor(rgbTo565(200, 200, 255));
  if (ldrInternalLux > 0) {
    if (ldrInternalLux < 10) {
      tft.print(ldrInternalLux, 1);
    } else if (ldrInternalLux < 1000) {
      tft.print((int)ldrInternalLux);
    } else {
      tft.print(ldrInternalLux / 1000.0, 1);
      tft.print("k");
    }
    tft.print("lx");
  } else {
    tft.print("-- lx");
  }

  if (validCount > 0) {
    unsigned long newestTime = 0;
    for (int i = 0; i < GRAPH_HISTORY_SIZE; i++) {
      if (timeStamps48h[i] > newestTime && !isnan(tempHistory48h[i])) {
        newestTime = timeStamps48h[i];
      }
    }
    
    if (newestTime > 0) {
      unsigned long ageSeconds = (millis() - newestTime) / 1000;
      tft.setCursor(50, legendY + 20);
      tft.setTextColor(rgbTo565(150, 150, 150));
      tft.printf("Zadnja meritev: pred %lu s", ageSeconds);
    }
  }

  int buttonWidth = 120;
  int buttonHeight = 30;
  int buttonY = legendY + 35;

  drawMenuButton(40, buttonY, buttonWidth, buttonHeight,
                 rgbTo565(76, 175, 80), "OSVEZI");

  drawMenuButton(180, buttonY, buttonWidth, buttonHeight,
                 rgbTo565(245, 67, 54), "NAZAJ");

  currentState = STATE_INTERNAL_GRAPH_48H;
}

void drawThickLine(int x1, int y1, int x2, int y2, int thickness, uint16_t color) {
  if (thickness == 1) {
    tft.drawLine(x1, y1, x2, y2, color);
  } else if (thickness == 2) {
    tft.drawLine(x1, y1, x2, y2, color);
    tft.drawLine(x1 + 1, y1, x2 + 1, y2, color);
    tft.drawLine(x1, y1 + 1, x2, y2 + 1, color);
  } else {
    for (int dx = -thickness / 2; dx <= thickness / 2; dx++) {
      for (int dy = -thickness / 2; dy <= thickness / 2; dy++) {
        tft.drawLine(x1 + dx, y1 + dy, x2 + dx, y2 + dy, color);
      }
    }
  }
}

void showExternalGraph48hScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(EXTERNAL_COLOR);
  tft.setCursor(150, 25);
  tft.println("48-URNI GRAF - ZUNANJI SENZORJI");

  int graphX = 30;
  int graphY = 60;
  int graphWidth = 420;
  int graphHeight = 160;

  tft.fillRoundRect(graphX, graphY, graphWidth, graphHeight, 6, rgbTo565(20, 30, 40));
  tft.drawRoundRect(graphX, graphY, graphWidth, graphHeight, 6, EXTERNAL_COLOR);

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(100, 120, 140));

  for (int hour = 0; hour <= 48; hour += 6) {
    int xPos = graphX + (hour * (graphWidth / 48));
    
    for (int y = graphY; y < graphY + graphHeight; y += 4) {
      tft.drawPixel(xPos, y, rgbTo565(60, 70, 80));
    }
    
    tft.setCursor(xPos - 10, graphY + graphHeight + 5);
    if (hour == 0) {
      tft.print("zdaj");
    } else if (hour == 48) {
      tft.print("-48h");
    } else {
      tft.print("-");
      tft.print(48 - hour);
      tft.print("h");
    }
  }

  for (int temp = -10; temp <= 40; temp += 10) {
    int yPos = graphY + graphHeight - ((temp + 10) * (graphHeight / 50));
    
    for (int x = graphX; x < graphX + graphWidth; x += 4) {
      tft.drawPixel(x, yPos, rgbTo565(60, 70, 80));
    }
    
    tft.setCursor(graphX - 25, yPos - 4);
    tft.setTextColor(rgbTo565(150, 150, 180));
    tft.print(temp);
    tft.print("°C");
  }
  
  for (int hum = 0; hum <= 100; hum += 20) {
    int yPos = graphY + graphHeight - (hum * (graphHeight / 100));
    
    tft.setCursor(graphX + graphWidth + 5, yPos - 4);
    tft.setTextColor(rgbTo565(150, 150, 180));
    tft.print(hum);
    tft.print("%");
  }

  int validCount = 0;
  for (int i = 0; i < EXTERNAL_GRAPH_HISTORY_SIZE; i++) {
    if (!isnan(extTempHistory48h[i]) && extTempHistory48h[i] != 0) {
      validCount++;
    }
  }

  if (validCount > 1) {
    float prevTempX = -1, prevTempY = -1;
    float prevHumX = -1, prevHumY = -1;
    float prevLuxX = -1, prevLuxY = -1;
    
    for (int i = 0; i < EXTERNAL_GRAPH_HISTORY_SIZE; i++) {
      int historyIdx = (extGraphHistoryIndex - i - 1 + EXTERNAL_GRAPH_HISTORY_SIZE) % EXTERNAL_GRAPH_HISTORY_SIZE;
      
      if (isnan(extTempHistory48h[historyIdx]) && isnan(extHumHistory48h[historyIdx]) && 
          (extLuxHistory48h[historyIdx] <= 0 || extLuxHistory48h[historyIdx] > 20000)) {
        continue;
      }
      
      float xPos = graphX + (i * (graphWidth / (float)EXTERNAL_GRAPH_HISTORY_SIZE));
      xPos = constrain(xPos, graphX, graphX + graphWidth);
      
      if (!isnan(extTempHistory48h[historyIdx]) && extTempHistory48h[historyIdx] != 0) {
        float tempY = graphY + graphHeight - ((extTempHistory48h[historyIdx] + 10) * (graphHeight / 50.0));
        tempY = constrain(tempY, graphY + 2, graphY + graphHeight - 2);
        
        if (prevTempX != -1) {
          tft.drawLine(prevTempX, prevTempY, xPos, tempY, TEMP_COLOR);
        }
        
        if (i % 3 == 0 || i == EXTERNAL_GRAPH_HISTORY_SIZE - 1) {
          tft.fillCircle(xPos, tempY, 2, TEMP_COLOR);
        }
        
        prevTempX = xPos;
        prevTempY = tempY;
      }
      
      if (!isnan(extHumHistory48h[historyIdx]) && extHumHistory48h[historyIdx] != 0) {
        float humY = graphY + graphHeight - (extHumHistory48h[historyIdx] * (graphHeight / 100.0));
        humY = constrain(humY, graphY + 2, graphY + graphHeight - 2);
        
        if (prevHumX != -1) {
          tft.drawLine(prevHumX, prevHumY, xPos, humY, HUMIDITY_COLOR);
        }
        
        if (i % 3 == 0 || i == EXTERNAL_GRAPH_HISTORY_SIZE - 1) {
          tft.fillCircle(xPos, humY, 2, HUMIDITY_COLOR);
        }
        
        prevHumX = xPos;
        prevHumY = humY;
      }
      
      if (extLuxHistory48h[historyIdx] > 0 && extLuxHistory48h[historyIdx] < 20000) {
        float luxPercent = (extLuxHistory48h[historyIdx] / 20000.0) * 100.0;
        luxPercent = constrain(luxPercent, 0, 100);
        float luxY = graphY + graphHeight - (luxPercent * (graphHeight / 100.0));
        luxY = constrain(luxY, graphY + 2, graphY + graphHeight - 2);
        
        if (prevLuxX != -1) {
          tft.drawLine(prevLuxX, prevLuxY, xPos, luxY, LIGHT_COLOR);
        }
        
        if (i % 3 == 0 || i == EXTERNAL_GRAPH_HISTORY_SIZE - 1) {
          tft.fillCircle(xPos, luxY, 2, LIGHT_COLOR);
        }
        
        prevLuxX = xPos;
        prevLuxY = luxY;
      }
    }
    
    tft.setTextSize(1);
    tft.setTextColor(rgbTo565(200, 200, 255));
    tft.setCursor(graphX + 10, graphY + 10);
    tft.printf("Tock: %d", validCount);
    
  } else {
    tft.setTextSize(1);
    tft.setTextColor(rgbTo565(255, 150, 50));
    
    tft.setCursor(graphX + graphWidth / 2 - 60, graphY + graphHeight / 2 - 20);
    tft.println("Premalo podatkov za graf");
    
    tft.setCursor(graphX + graphWidth / 2 - 50, graphY + graphHeight / 2);
    tft.println("Pocakajte vsaj 30 minut");
    
    tft.setCursor(graphX + graphWidth / 2 - 40, graphY + graphHeight / 2 + 20);
    tft.printf("Veljavnih: %d/%d", validCount, EXTERNAL_GRAPH_HISTORY_SIZE);
    
    if (!module1Active) {
      tft.setCursor(graphX + graphWidth / 2 - 70, graphY + graphHeight / 2 + 45);
      tft.setTextColor(rgbTo565(255, 80, 80));
      tft.println("⚠️ Modul 1 ni aktiven!");
      tft.setCursor(graphX + graphWidth / 2 - 50, graphY + graphHeight / 2 + 60);
      tft.setTextColor(rgbTo565(255, 150, 50));
      tft.println("Preverite povezavo");
    }
  }

  int legendY = graphY + graphHeight + 20;
  
  tft.fillRect(50, legendY, 8, 8, TEMP_COLOR);
  tft.setCursor(62, legendY);
  tft.setTextColor(TEMP_COLOR);
  tft.print("Temp: ");
  tft.setTextColor(rgbTo565(200, 200, 255));
  if (module1Active && !isnan(externalTemperature)) {
    tft.print(externalTemperature, 1);
    tft.print("°C");
  } else {
    tft.print("--.-°C");
  }
  
  tft.fillRect(180, legendY, 8, 8, HUMIDITY_COLOR);
  tft.setCursor(192, legendY);
  tft.setTextColor(HUMIDITY_COLOR);
  tft.print("Vlaga: ");
  tft.setTextColor(rgbTo565(200, 200, 255));
  if (module1Active && !isnan(externalHumidity)) {
    tft.print(externalHumidity, 1);
    tft.print("%");
  } else {
    tft.print("--.-%");
  }
  
  tft.fillRect(310, legendY, 8, 8, LIGHT_COLOR);
  tft.setCursor(322, legendY);
  tft.setTextColor(LIGHT_COLOR);
  tft.print("Svet: ");
  tft.setTextColor(rgbTo565(200, 200, 255));
  if (module1Active && externalLux > 0) {
    if (externalLux < 10) {
      tft.print(externalLux, 1);
    } else if (externalLux < 1000) {
      tft.print((int)externalLux);
    } else {
      tft.print(externalLux / 1000.0, 1);
      tft.print("k");
    }
    tft.print("lx");
  } else {
    tft.print("-- lx");
  }
  
  if (validCount > 0) {
    unsigned long newestTime = 0;
    for (int i = 0; i < EXTERNAL_GRAPH_HISTORY_SIZE; i++) {
      if (extTimeStamps48h[i] > newestTime && !isnan(extTempHistory48h[i])) {
        newestTime = extTimeStamps48h[i];
      }
    }
    
    if (newestTime > 0) {
      unsigned long ageSeconds = (millis() - newestTime) / 1000;
      tft.setCursor(50, legendY + 20);
      tft.setTextColor(rgbTo565(150, 150, 150));
      tft.printf("Zadnja meritev: pred %lu s", ageSeconds);
    }
  }

  int buttonWidth = 120;
  int buttonHeight = 30;
  int buttonY = legendY + 35;
  
  drawMenuButton(40, buttonY, buttonWidth, buttonHeight,
                rgbTo565(76, 175, 80), "OSVEZI");
  
  drawMenuButton(180, buttonY, buttonWidth, buttonHeight,
                rgbTo565(245, 67, 54), "NAZAJ");

  currentState = STATE_EXTERNAL_GRAPH_48H;
}

void showExternalSensorsInfo() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(EXTERNAL_COLOR);
  tft.setCursor(150, 35);
  tft.println("ZUNANJI SENZORJI");

  tft.setCursor(350, 35);
  tft.setTextColor(module1Active ? rgbTo565(80, 220, 100) : rgbTo565(255, 80, 80));
  tft.print("●");
  tft.setTextColor(ST77XX_WHITE);
  tft.print(module1Active ? " Modul 1" : " Modul nedosegljiv");

  tft.drawRoundRect(10, 48, 460, 170, 10, EXTERNAL_COLOR);
  tft.fillRoundRect(11, 49, 458, 168, 10, rgbTo565(40, 20, 50));

  int leftColumnX = 30;
  int rightColumnX = 260;
  int yOffset = 58;
  int lineHeight = 14;

  tft.setTextSize(1);

  tft.setCursor(leftColumnX, yOffset);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.print("AHT20: ");
  tft.setTextColor(module1Active ? rgbTo565(80, 220, 100) : rgbTo565(255, 80, 80));
  tft.println(module1Active ? "MODUL 1" : "NI PODATKOV");

  if (module1Active) {
    tft.setCursor(leftColumnX, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(220, 200, 255));
    tft.println("Temperatura:");

    int tempBarWidth = map(constrain(externalTemperature, -10, 40), -10, 40, 0, 150);
    tft.fillRect(leftColumnX, yOffset + lineHeight + 4, 150, 12, rgbTo565(80, 60, 60));
    tft.fillRect(leftColumnX, yOffset + lineHeight + 4, tempBarWidth, 12, TEMP_COLOR);
    tft.drawRect(leftColumnX, yOffset + lineHeight + 4, 150, 12, ST77XX_WHITE);

    tft.setCursor(leftColumnX, yOffset + 3 * lineHeight);
    tft.setTextColor(rgbTo565(220, 200, 255));
    tft.println("Vlaznost:");

    int humidBarWidth = map(constrain(externalHumidity, 0, 100), 0, 100, 0, 150);
    tft.fillRect(leftColumnX, yOffset + 3 * lineHeight + 4, 150, 12, rgbTo565(60, 60, 80));
    tft.fillRect(leftColumnX, yOffset + 3 * lineHeight + 4, humidBarWidth, 12, HUMIDITY_COLOR);
    tft.drawRect(leftColumnX, yOffset + 3 * lineHeight + 4, 150, 12, ST77XX_WHITE);
  } else {
    tft.setCursor(leftColumnX, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(255, 100, 100));
    tft.println("Modul 1 ni dosegljiv!");
    tft.setCursor(leftColumnX, yOffset + 2 * lineHeight);
    tft.setTextColor(rgbTo565(255, 150, 50));
    tft.println("Preverite povezavo");
  }

  tft.setCursor(rightColumnX, yOffset);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.print("BMP280: ");
  if (module1Active) {
    tft.setTextColor(rgbTo565(80, 220, 100));
    tft.println("MODUL 1");
  } else {
    tft.setTextColor(rgbTo565(255, 80, 80));
    tft.println("NI PODATKOV");
  }

  if (module1Active) {
    tft.setCursor(rightColumnX, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(220, 200, 255));
    tft.println("Tlak:");

    int pressureBarWidth = map(constrain(externalPressure, 950, 1050), 950, 1050, 0, 150);
    tft.fillRect(rightColumnX, yOffset + lineHeight + 4, 150, 12, rgbTo565(60, 80, 60));
    tft.fillRect(rightColumnX, yOffset + lineHeight + 4, pressureBarWidth, 12, PRESSURE_COLOR);
    tft.drawRect(rightColumnX, yOffset + lineHeight + 4, 150, 12, ST77XX_WHITE);
  }

  tft.setCursor(rightColumnX, yOffset + 3 * lineHeight);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.println("Svetloba:");

  int lightBarWidth = map(constrain(externalLux, 0, 20000), 0, 20000, 0, 150);
  tft.fillRect(rightColumnX, yOffset + 3 * lineHeight + 4, 150, 12, rgbTo565(60, 60, 60));
  tft.fillRect(rightColumnX, yOffset + 3 * lineHeight + 4, lightBarWidth, 12, LIGHT_COLOR);
  tft.drawRect(rightColumnX, yOffset + 3 * lineHeight + 4, 150, 12, ST77XX_WHITE);

  int measurementY = yOffset + 5 * lineHeight + 5;

  if (module1Active) {
    tft.setCursor(leftColumnX, measurementY);
    tft.setTextColor(TEMP_COLOR);
    tft.print("T: ");
    tft.setTextColor(rgbTo565(200, 200, 255));
    tft.printf("%.1f°C", externalTemperature);

    tft.setCursor(leftColumnX + 85, measurementY);
    tft.setTextColor(HUMIDITY_COLOR);
    tft.print("V: ");
    tft.setTextColor(rgbTo565(200, 200, 255));
    tft.printf("%.1f%%", externalHumidity);

    tft.setCursor(rightColumnX, measurementY);
    tft.setTextColor(PRESSURE_COLOR);
    tft.print("P: ");
    tft.setTextColor(rgbTo565(200, 200, 255));
    tft.printf("%.1f hPa", externalPressure);
  } else {
    tft.setCursor(leftColumnX, measurementY);
    tft.setTextColor(rgbTo565(255, 100, 100));
    tft.print("Modul ni dosegljiv");
  }

  int measurementY2 = measurementY + lineHeight;

  if (module1Active) {
    tft.setCursor(leftColumnX, measurementY2);
    tft.setTextColor(LIGHT_COLOR);
    tft.print("Sv: ");
    tft.setTextColor(rgbTo565(200, 200, 255));

    if (externalLux < 10) {
      tft.printf("%.1f lx", externalLux);
    } else if (externalLux < 1000) {
      tft.printf("%.0f lx", externalLux);
    } else {
      tft.printf("%.1f klx", externalLux / 1000.0);
    }
  }

  int buttonY = 228;
  int buttonWidth = 135;
  int buttonHeight = 32;
  int buttonSpacing = 10;

  int row1X = (tft.width() - (2 * buttonWidth + buttonSpacing)) / 2;
  
  drawIconButton(row1X, buttonY, buttonWidth, buttonHeight, EXTERNAL_COLOR, "OSVEZI", "refresh");
  drawMenuButton(row1X + buttonWidth + buttonSpacing, buttonY, buttonWidth, buttonHeight, 
                 rgbTo565(76, 175, 80), "48H GRAF");

  int row2Y = buttonY + buttonHeight + 8;
  int btnW2 = 110;
  int spacing2 = 8;
  int totalWidth = 3 * btnW2 + 2 * spacing2;
  int row2X = (tft.width() - totalWidth) / 2;
  
  drawMenuButton(row2X, row2Y, btnW2, buttonHeight, rgbTo565(76, 175, 80), "SHRANI");
  
  drawMenuButton(row2X + btnW2 + spacing2, row2Y, btnW2, buttonHeight, 
                 EXTERNAL_COLOR, "NAZAJ");

  if (!module1Active) {
    tft.fillRect(100, 150, 280, 40, rgbTo565(20, 40, 70));
    tft.drawRect(100, 150, 280, 40, rgbTo565(255, 80, 80));
    tft.setTextSize(1);
    tft.setTextColor(rgbTo565(255, 150, 50));
    tft.setCursor(130, 165);
    tft.println("MODUL 1 NI DOSEGLJIV!");
    tft.setCursor(140, 180);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.println("Preverite povezavo");
  }

  currentState = STATE_EXTERNAL_SENSORS_INFO;
}

void handleExternalGraph48hTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int buttonWidth = 120;
  int buttonHeight = 30;
  
  int graphY = 60;
  int graphHeight = 160;
  int legendY = graphY + graphHeight + 20;
  int buttonY = legendY + 35;

  if (x > 40 && x < 40 + buttonWidth && y > buttonY && y < buttonY + buttonHeight) {
    showExternalGraph48hScreen();
    return;
  }

  if (x > 180 && x < 180 + buttonWidth && y > buttonY && y < buttonY + buttonHeight) {
    showExternalSensorsInfo();
    return;
  }
}

void handleExternalSensorsTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int buttonWidth = 135;
  int buttonHeight = 32;
  int buttonSpacing = 10;
  int buttonY1 = 228;
  int buttonY2 = buttonY1 + buttonHeight + 8;

  int row1X = (tft.width() - (2 * buttonWidth + buttonSpacing)) / 2;

  if (x > row1X && x < row1X + buttonWidth && y > buttonY1 && y < buttonY1 + buttonHeight) {
    Serial.println("Gumb OSVEZI pritisnjen");
    showExternalSensorsInfo();
    return;
  }

  if (x > row1X + buttonWidth + buttonSpacing && x < row1X + 2 * buttonWidth + buttonSpacing && 
      y > buttonY1 && y < buttonY1 + buttonHeight) {
    Serial.println("Gumb 48H GRAF pritisnjen");
    showExternalGraph48hScreen();
    return;
  }

  int btnW2 = 110;
  int spacing2 = 8;
  int totalWidth = 2 * btnW2 + spacing2;
  int row2X = (tft.width() - totalWidth) / 2;

  if (x > row2X && x < row2X + btnW2 && y > buttonY2 && y < buttonY2 + buttonHeight) {
    Serial.println("Gumb SHRANI pritisnjen");
    
    if (sdInitialized && useSDCard) {
      saveSettingsToSD();
      showTemporaryMessage("Nastavitve shranjene\nna SD kartico!", rgbTo565(80, 220, 100), 2000);
    } else {
      if (!sdInitialized) {
        showTemporaryMessage("SD kartica ni inicializirana!\nPoskusite znova", rgbTo565(255, 80, 80), 2000);
        initializeSDCard();
      } else if (!useSDCard) {
        showTemporaryMessage("Shranjevanje ni na SD!\nPreklopite nacin", rgbTo565(255, 150, 50), 2000);
      }
    }
    showExternalSensorsInfo();
    return;
  }

  if (x > row2X + btnW2 + spacing2 && x < row2X + 2 * btnW2 + spacing2 && 
      y > buttonY2 && y < buttonY2 + buttonHeight) {
    Serial.println("Gumb NAZAJ pritisnjen");
    showMainMenu();
    return;
  }
}

void setupWiFi() {
    Serial.println("\n=== KONFIGURACIJA WIFI OMREŽIJ ===");

    // Počisti obstoječe nastavitve
    WiFi.disconnect(true);
    delay(100);
    
    // Nastavi način
    WiFi.mode(WIFI_STA);
    delay(100);
    
    // Izpiši MAC naslov
    Serial.printf("  MAC naslov: %s\n", WiFi.macAddress().c_str());

    int networksAdded = 0;
    for (int i = 0; i < MAX_WIFI_NETWORKS; i++) {
        String ssid = String(wifiNetworks[i][0]);
        String pass = String(wifiNetworks[i][1]);

        if (ssid.length() > 0 && ssid != "" && pass.length() > 0) {
            wifiMulti.addAP(ssid.c_str(), pass.c_str());
            networksAdded++;
            Serial.printf("  Dodano omrezje %d: %s\n", i+1, ssid.c_str());
        }
    }

    if (networksAdded == 0) {
        Serial.println("  OPOZORILO: Ni dodanih WiFi omrezij!");
    } else {
        Serial.printf("  Skupaj dodanih omrezij: %d\n", networksAdded);
    }

    Serial.println("=== KONEC KONFIGURACIJE ===\n");
}

void testWiFiConnection() {
    Serial.println("\n╔══════════════════════════════════════════════════════════════╗");
    Serial.println("║                    TEST WIFI POVEZAVE                        ║");
    Serial.println("╚══════════════════════════════════════════════════════════════╝");
    
    bool wasConnected = wifiConnected;
    
    WiFi.disconnect(true);
    delay(500);
    
    Serial.println("\n📡 1. Poskusam povezavo BREZ GESLA...");
    WiFi.begin("WiFi-192");
    
    int attempts = 0;
    bool connected = false;
    while (attempts < 30 && WiFi.status() != WL_CONNECTED) {
        delay(200);
        attempts++;
        if (attempts % 10 == 0) {
            Serial.printf("     Status: %d (1=OMREZJE NI NAJDENO, 6=POVEZAVA NEUSPELA)\n", WiFi.status());
        }
    }
    
    if (WiFi.status() == WL_CONNECTED) {
        Serial.println("     ✅ Povezano BREZ GESLA! Omrezje je odprto!");
        Serial.printf("     IP naslov: %s\n", WiFi.localIP().toString());
        connected = true;
    } else {
        Serial.println("     ❌ Povezava brez gesla ni uspela - omrezje zahteva geslo");
    }
    
    if (connected) {
        WiFi.disconnect();
        delay(500);
    }
    
    const char* commonPasswords[] = {"", "password", "12345678", "admin", "sijuan5768", "sijuan5768", "WiFi-192", "1234567890"};
    int numPasswords = sizeof(commonPasswords) / sizeof(commonPasswords[0]);
    
    Serial.println("\n📡 2. Poskusam z razlicnimi gesli...");
    
    for (int i = 0; i < numPasswords; i++) {
        String password = String(commonPasswords[i]);
        if (password.length() == 0) continue;
        
        Serial.printf("     Geslo: '%s' ", password.c_str());
        WiFi.begin("WiFi-192", password.c_str());
        
        attempts = 0;
        bool passConnected = false;
        while (attempts < 25 && WiFi.status() != WL_CONNECTED) {
            delay(200);
            attempts++;
        }
        
        if (WiFi.status() == WL_CONNECTED) {
            Serial.println(" ✅ POVEZANO!");
            Serial.printf("     IP naslov: %s\n", WiFi.localIP().toString());
            Serial.printf("     Kanal: %d\n", WiFi.channel());
            Serial.printf("     RSSI: %d dBm\n", WiFi.RSSI());
            connected = true;
            break;
        } else {
            Serial.println(" ❌");
        }
        WiFi.disconnect();
        delay(300);
    }
    
    if (!connected) {
        Serial.println("\n📡 3. Dodatne informacije za debug:");
        Serial.printf("     MAC naslov ESP32: %s\n", WiFi.macAddress().c_str());
        
        Serial.println("     Ponovno skeniram omrezja...");
        int n = WiFi.scanNetworks();
        bool found = false;
        for (int i = 0; i < n; i++) {
            if (WiFi.SSID(i) == "WiFi-192") {
                found = true;
                Serial.printf("     ✅ Omrezje 'WiFi-192' NAJDENO!\n");
                Serial.printf("        Kanal: %d\n", WiFi.channel(i));
                Serial.printf("        RSSI: %d dBm\n", WiFi.RSSI(i));
                Serial.printf("        Enkripcija: %d (0=ODPRTO, 2=WPA, 3=WPA2, 4=WPA/WPA2)\n", WiFi.encryptionType(i));
                break;
            }
        }
        WiFi.scanDelete();
        
        if (!found) {
            Serial.println("     ❌ Omrezje 'WiFi-192' NI NAJDENO!");
            Serial.println("     Preverite, ali je omrezje vidno na drugih napravah.");
        }
        
        Serial.println("\n   Možni vzroki:");
        Serial.println("     1. Napačno geslo - preverite na drugi napravi");
        Serial.println("     2. MAC filtriranje na routerju - dodajte MAC naslov ESP32");
        Serial.println("     3. DHCP ni omogočen - router ne dodeli IP naslova");
        Serial.println("     4. Preveč naprav povezanih - router ima omejitev");
    }
    
    if (wasConnected && !connected) {
        Serial.println("\n📡 Obnavljam prejsnjo WiFi povezavo...");
        WiFi.begin("WiFi-192", "sijuan5768");
        attempts = 0;
        while (attempts < 30 && WiFi.status() != WL_CONNECTED) {
            delay(200);
            attempts++;
        }
        if (WiFi.status() == WL_CONNECTED) {
            wifiConnected = true;
            wifiSSID = WiFi.SSID();
            wifiIP = WiFi.localIP().toString();
            wifiRSSI = WiFi.RSSI();
            Serial.println("     ✅ Prejsnja povezava obnovljena!");
        }
    }
    
    Serial.println("\n╔══════════════════════════════════════════════════════════════╗");
    Serial.printf("║  KONEC TESTA - Povezava: %s\n", connected ? "USPEŠNA ✅" : "NEUSPEŠNA ❌");
    Serial.println("╚══════════════════════════════════════════════════════════════╝\n");
}

void autoConnectToWiFi() {
    Serial.println("\n=== POVEZAVA NA WIFI ===");

    if (WiFi.status() == WL_CONNECTED) {
        Serial.println("✅ Že povezan na WiFi!");
        wifiConnected = true;
        wifiSSID = WiFi.SSID();
        wifiIP = WiFi.localIP().toString();
        wifiRSSI = WiFi.RSSI();
        return;
    }

    // Počisti stare nastavitve
    WiFi.disconnect(true);
    delay(100);
    
    // Nastavi način
    WiFi.mode(WIFI_STA);
    delay(100);
    
    // Poskusi povezavo DIREKTNO (brez WiFiMulti)
    Serial.println("  Poskušam povezavo na WiFi-192...");
    WiFi.begin("WiFi-192", "sijuan5768");
    
    int attempts = 0;
    while (attempts < 40 && WiFi.status() != WL_CONNECTED) {
        delay(500);
        attempts++;
        Serial.printf("  Čakam... (%d/40), status: %d\n", attempts, WiFi.status());
        
        if (attempts == 20) {
            Serial.println("  Ponovni poskus povezave...");
            WiFi.begin("WiFi-192", "sijuan5768");
        }
    }
    
    if (WiFi.status() == WL_CONNECTED) {
        wifiConnected = true;
        wifiSSID = "WiFi-192";
        wifiIP = WiFi.localIP().toString();
        wifiRSSI = WiFi.RSSI();
        
        Serial.println("\n✅ WiFi POVEZAN!");
        Serial.printf("   IP: %s\n", wifiIP.c_str());
        Serial.printf("   RSSI: %d dBm\n", wifiRSSI);
        Serial.printf("   Kanal: %d\n", WiFi.channel());
        
        // Nastavi kanal na 1
        WiFi.setChannel(1);
        
        if (!ntpSynchronized) {
            syncTimeWithNTP();
        }
    } else {
        Serial.printf("\n❌ Povezava neuspešna (status: %d)\n", WiFi.status());
        Serial.println("  Preverite:");
        Serial.println("    1. Ali je geslo 'sijuan5768' pravilno?");
        Serial.println("    2. Ali router oddaja SSID 'WiFi-192'?");
        Serial.println("    3. Ali je DHCP omogočen?");
        
        wifiConnected = false;
    }
}
void checkWiFiStatus() {
    unsigned long currentTime = millis();
    static unsigned long lastConnectAttempt = 0;

    if (currentTime - lastWifiCheck > 2000) {

        uint8_t currentStatus = WiFi.status();
        
        static uint8_t lastStatus = 255;
        if (currentStatus != lastStatus) {
            Serial.printf("WiFi status spremenjen: %d -> %d\n", lastStatus, currentStatus);
            lastStatus = currentStatus;
        }

        if (currentStatus == WL_CONNECTED) {
            if (!wifiConnected) {
                wifiConnected = true;
                wifiSSID = WiFi.SSID();
                wifiIP = WiFi.localIP().toString();
                wifiRSSI = WiFi.RSSI();
                autoConnecting = false;
                
                WiFi.setChannel(1);
                Serial.printf("✅ WiFi povezan, kanal: %d\n", WiFi.channel());

                if (!ntpSynchronized) {
                    syncTimeWithNTP();
                }

                drawStatusBar();
            }
        } else {
            if (wifiConnected) {
                wifiConnected = false;
                wifiSSID = "Brez mreze";
                wifiIP = "N/A";
                wifiRSSI = 0;
                Serial.println("⚠️ WiFi povezava prekinjena!");
                drawStatusBar();
            }
            
            if (!autoConnecting && currentState != STATE_WIFI_CONNECTING && 
                (currentTime - lastConnectAttempt > 30000)) {
                lastConnectAttempt = currentTime;
                Serial.println("🔄 Poskus ponovne povezave WiFi...");
                autoConnectToWiFi();
            }
        }

        lastWifiCheck = currentTime;
    }
}

void connectToWiFi() {
  Serial.println("\n=== ROCNO POVEZOVANJE NA WIFI ===");

  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(2);
  tft.setTextColor(rgbTo565(255, 200, 50));
  tft.setCursor(120, 100);
  tft.println("POVEZUJEM...");

  for (int i = 0; i < 3; i++) {
    int centerX = tft.width() / 2;
    int centerY = 160;

    for (int r = 5; r <= 15; r += 5) {
      uint16_t color = blendColor(rgbTo565(255, 200, 50), rgbTo565(30, 30, 50), r * 3);
      for (int a = 225 + i * 30; a <= 315 + i * 30; a += 15) {
        int px = centerX + (r * cos(a * 3.14159 / 180));
        int py = centerY + (r * sin(a * 3.14159 / 180));
        tft.drawPixel(px, py, color);
      }
    }

    tft.fillCircle(centerX, centerY, 3, rgbTo565(255, 200, 50));
    delay(300);
  }

  tft.setCursor(80, 200);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.setTextSize(1);
  tft.println("Iskanje omrezij in povezovanje...");

  currentState = STATE_WIFI_CONNECTING;
  autoConnecting = true;
  lastWifiCheck = millis();

  uint8_t status = wifiMulti.run();

  if (status == WL_CONNECTED) {
    wifiConnected = true;
    wifiSSID = WiFi.SSID();
    wifiIP = WiFi.localIP().toString();
    wifiRSSI = WiFi.RSSI();
    autoConnecting = false;

    WiFi.setChannel(1);

    showWiFiConnectedScreen();
    currentState = STATE_WIFI_CONNECTED;
  }
}

void handleWiFiConnecting() {
  static int dotCount = 0;
  static unsigned long lastDotTime = 0;
  unsigned long currentTime = millis();

  if (currentState != STATE_WIFI_CONNECTING && !autoConnecting) {
    return;
  }

  if (currentTime - lastDotTime > 500) {
    tft.fillRect(180, 160, 120, 20, ST77XX_BLACK);
    tft.setCursor(180, 160);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.setTextSize(1);
    tft.print("Povezujem");

    for (int i = 0; i < dotCount; i++) {
      tft.print(".");
    }

    dotCount = (dotCount + 1) % 4;
    lastDotTime = currentTime;
  }

  if (WiFi.status() == WL_CONNECTED) {
    wifiConnected = true;
    autoConnecting = false;
    wifiSSID = WiFi.SSID();
    wifiIP = WiFi.localIP().toString();
    wifiRSSI = WiFi.RSSI();

    WiFi.setChannel(1);

    drawStatusBar();

    if (currentState == STATE_WIFI_CONNECTING) {
      showWiFiConnectedScreen();
      currentState = STATE_WIFI_CONNECTED;
    }

    if (!ntpSynchronized) {
      syncTimeWithNTP();
    }
  }

  if (currentTime - lastWifiCheck > 60000) {
    if (currentState == STATE_WIFI_CONNECTING) {
      autoConnecting = false;
      showWiFiFailedScreen();
      currentState = STATE_MAIN_MENU;
    }
  }
}

void showWiFiConnectedScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(2);
  tft.setTextColor(rgbTo565(80, 220, 100));
  tft.setCursor(120, 30);
  tft.println("WI-FI POVEZAN");

  tft.drawRoundRect(20, 50, 440, 150, 10, rgbTo565(0, 150, 255));
  tft.fillRoundRect(21, 51, 438, 148, 10, rgbTo565(20, 40, 70));

  tft.setTextSize(1);
  tft.setCursor(30, 65);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Omrezje: ");
  tft.setTextColor(rgbTo565(150, 255, 150));
  tft.println(wifiSSID);

  tft.setCursor(30, 85);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("IP naslov: ");
  tft.setTextColor(rgbTo565(150, 200, 255));
  tft.println(wifiIP);

  tft.setCursor(30, 105);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Jakost signala: ");
  tft.setTextColor(rgbTo565(80, 220, 100));
  tft.print(wifiRSSI);
  tft.println(" dBm");

  tft.setCursor(30, 125);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("MAC naslov: ");
  tft.setTextColor(rgbTo565(150, 200, 255));
  tft.println(WiFi.macAddress());

  tft.setCursor(30, 145);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Kanal: ");
  tft.setTextColor(rgbTo565(255, 255, 100));
  tft.println(WiFi.channel());

  drawIconButton(50, 210, 180, 40, rgbTo565(66, 135, 245), "TEST PING", "wifi");
  drawIconButton(250, 210, 180, 40, rgbTo565(76, 175, 80), "SCAN OMREZIJ", "display");
  drawIconButton(50, 260, 180, 40, rgbTo565(245, 67, 54), "NAZAJ", "info");
  drawIconButton(250, 260, 180, 40, rgbTo565(156, 39, 176), "TEST POVEZAVE", "touch");
}

void showWiFiFailedScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(2);
  tft.setTextColor(rgbTo565(255, 80, 80));
  tft.setCursor(120, 100);
  tft.println("NI OMREZJA!");

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 200, 50));
  tft.setCursor(80, 140);
  tft.println("Preverite WiFi nastavitve");
  tft.setCursor(100, 160);
  tft.println("in poskusite ponovno.");

  drawIconButton(150, 200, 180, 40, rgbTo565(66, 135, 245), "NAZAJ", "info");

  bool waiting = true;
  unsigned long startTime = millis();

  while (waiting && (millis() - startTime < 10000)) {
    handleTouch();

    if (ts.touched()) {
      TS_Point p = ts.getPoint();
      int x = map(p.x, TS_MINX, TS_MAXX, tft.width(), 0);
      int y = map(p.y, TS_MINY, TS_MAXY, tft.height(), 0);

      if (x > 150 && x < 330 && y > 200 && y < 240) {
        waiting = false;
      }
    }
    delay(10);
  }

  showMainMenu();
}

void handleWiFiConnectedTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  if (x > 50 && x < 230 && y > 260 && y < 300) {
    showMainMenu();
  }

  if (x > 250 && x < 430 && y > 210 && y < 250) {
    scanWiFiNetworks();
  }
}

void scanWiFiNetworks() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(2);
  tft.setTextColor(rgbTo565(0, 200, 255));
  tft.setCursor(140, 40);
  tft.println("WI-FI SCAN");

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 200, 50));
  tft.setCursor(80, 80);
  tft.println("Iskanje omrezij...");

  for (int i = 0; i < 3; i++) {
    int centerX = tft.width() / 2;
    int centerY = 120;

    for (int r = 5; r <= 15; r += 5) {
      uint16_t color = blendColor(rgbTo565(255, 200, 50), rgbTo565(30, 30, 50), r * 3);
      for (int a = 225 + i * 30; a <= 315 + i * 30; a += 15) {
        int px = centerX + (r * cos(a * 3.14159 / 180));
        int py = centerY + (r * sin(a * 3.14159 / 180));
        tft.drawPixel(px, py, color);
      }
    }

    tft.fillCircle(centerX, centerY, 3, rgbTo565(255, 200, 50));
    delay(300);
  }

  WiFi.scanDelete();
  int n = WiFi.scanNetworks();

  tft.fillRect(0, 80, 480, 40, ST77XX_BLACK);
  tft.fillRect(0, 120, 480, 180, rgbTo565(20, 40, 70));
  tft.drawRoundRect(20, 80, 440, 180, 10, rgbTo565(0, 150, 255));

  if (n == 0) {
    tft.setTextSize(1);
    tft.setTextColor(rgbTo565(255, 80, 80));
    tft.setCursor(80, 100);
    tft.println("Ni najdenih omrezij!");
  } else {
    tft.setTextSize(1);
    tft.setTextColor(rgbTo565(80, 220, 100));
    tft.setCursor(50, 90);
    tft.printf("Najdenih: %d omrezij", n);

    int maxDisplay = min(n, 5);
    for (int i = 0; i < maxDisplay; i++) {
      int yPos = 110 + (i * 30);

      tft.fillRect(30, yPos - 5, 420, 25, rgbTo565(30, 60, 100));
      tft.drawRect(30, yPos - 5, 420, 25, rgbTo565(0, 150, 255));

      tft.setCursor(35, yPos);
      tft.setTextColor(rgbTo565(220, 240, 255));
      tft.printf("%d. %s", i + 1, WiFi.SSID(i).c_str());

      tft.setCursor(300, yPos);
      tft.setTextColor(rgbTo565(255, 200, 50));
      tft.printf("%d dBm", WiFi.RSSI(i));

      int strengthBars = map(WiFi.RSSI(i), -100, -50, 0, 4);
      strengthBars = constrain(strengthBars, 0, 4);

      for (int b = 0; b < 4; b++) {
        int barX = 380 + b * 8;
        int barHeight = (b < strengthBars) ? (b + 1) * 3 : 3;
        uint16_t barColor;

        if (b < strengthBars) {
          if (strengthBars > 2) barColor = rgbTo565(80, 220, 100);
          else if (strengthBars > 1) barColor = rgbTo565(255, 200, 50);
          else barColor = rgbTo565(255, 100, 50);
        } else {
          barColor = rgbTo565(100, 100, 120);
        }

        tft.fillRect(barX, yPos + 10 - barHeight, 5, barHeight, barColor);
      }

      tft.setCursor(420, yPos);
      if (WiFi.encryptionType(i) == WIFI_AUTH_OPEN) {
        tft.setTextColor(rgbTo565(255, 100, 100));
        tft.print("ODPRTO");
      } else {
        tft.setTextColor(rgbTo565(100, 255, 100));
        tft.print("ZAKL.");
      }
    }
  }

  WiFi.scanDelete();

  delay(5000);
  showWiFiConnectedScreen();
}

void checkWarnings() {
  unsigned long currentTime = millis();

  if (module4Active && module4SoilMoisture > 0) {
    float soilWarningMin = 20;
    float soilWarningMax = 80;

    if (module4SoilMoisture < soilWarningMin || module4SoilMoisture > soilWarningMax) {
      if (!warnings.soilWarning) {
        warnings.soilWarning = true;
        warnings.soilWarningStart = currentTime;
        warnings.soilValue = module4SoilMoisture;
        warnings.soilMin = 20;
        warnings.soilMax = 80;
      }
    } else {
      warnings.soilWarning = false;
    }
  }

  if (module4Active && !isnan(module4AirTemp)) {
    float tempRange = targetTempMax - targetTempMin;
    float tempWarningMin = targetTempMin - (tempRange * WARNING_THRESHOLD_PERCENT / 100.0);
    float tempWarningMax = targetTempMax + (tempRange * WARNING_THRESHOLD_PERCENT / 100.0);

    if (module4AirTemp < tempWarningMin || module4AirTemp > tempWarningMax) {
      if (!warnings.tempWarning) {
        warnings.tempWarning = true;
        warnings.tempWarningStart = currentTime;
        warnings.tempValue = module4AirTemp;
        warnings.tempMin = targetTempMin;
        warnings.tempMax = targetTempMax;
      }
    } else {
      warnings.tempWarning = false;
    }
  }

  if (module4Active && !isnan(module4AirHum)) {
    float humRange = targetHumMax - targetHumMin;
    float humWarningMin = targetHumMin - (humRange * WARNING_THRESHOLD_PERCENT / 100.0);
    float humWarningMax = targetHumMax + (humRange * WARNING_THRESHOLD_PERCENT / 100.0);

    if (module4AirHum < humWarningMin || module4AirHum > humWarningMax) {
      if (!warnings.humWarning) {
        warnings.humWarning = true;
        warnings.humWarningStart = currentTime;
        warnings.humValue = module4AirHum;
        warnings.humMin = targetHumMin;
        warnings.humMax = targetHumMax;
      }
    } else {
      warnings.humWarning = false;
    }
  }

  if (warnings.soilWarning && currentTime - warnings.soilWarningStart > WARNING_DISPLAY_TIME) {
    warnings.soilWarning = false;
  }
  if (warnings.tempWarning && currentTime - warnings.tempWarningStart > WARNING_DISPLAY_TIME) {
    warnings.tempWarning = false;
  }
  if (warnings.humWarning && currentTime - warnings.humWarningStart > WARNING_DISPLAY_TIME) {
    warnings.humWarning = false;
  }
}

void drawWarningBar() {
  if (!warnings.soilWarning && !warnings.tempWarning && !warnings.humWarning) {
    return;
  }

  unsigned long currentTime = millis();

  if (currentTime - lastWarningBlink > WARNING_BLINK_INTERVAL) {
    warningBlinkState = !warningBlinkState;
    lastWarningBlink = currentTime;
  }

  if (!warningBlinkState) {
    return;
  }

  int barY = 288;
  int barHeight = 32;

  String warningText = "";
  uint16_t warningColor = rgbTo565(255, 0, 0);

  if (warnings.soilWarning && warnings.tempWarning && warnings.humWarning) {
    warningText = "⚠️ OPOZORILO: Temperatura, vlaga in vlaga tal! ⚠️";
  } else if (warnings.soilWarning && warnings.tempWarning) {
    warningText = "⚠️ OPOZORILO: Temperatura in vlaga tal! ⚠️";
  } else if (warnings.soilWarning && warnings.humWarning) {
    warningText = "⚠️ OPOZORILO: Vlaga in vlaga tal! ⚠️";
  } else if (warnings.tempWarning && warnings.humWarning) {
    warningText = "⚠️ OPOZORILO: Temperatura in vlaga! ⚠️";
  } else if (warnings.soilWarning) {
    warningText = "⚠️ OPOZORILO: Vlaga tal " + String(warnings.soilValue, 0) + "% (meje: " + String(warnings.soilMin, 0) + "-" + String(warnings.soilMax, 0) + "%) ⚠️";
    warningColor = SOIL_COLOR;
  } else if (warnings.tempWarning) {
    warningText = "⚠️ OPOZORILO: Temperatura " + String(warnings.tempValue, 1) + "°C (meje: " + String(warnings.tempMin, 1) + "-" + String(warnings.tempMax, 1) + "°C) ⚠️";
    warningColor = TEMP_COLOR;
  } else if (warnings.humWarning) {
    warningText = "⚠️ OPOZORILO: Vlaznost " + String(warnings.humValue, 1) + "% (meje: " + String(warnings.humMin, 1) + "-" + String(warnings.humMax, 1) + "%) ⚠️";
    warningColor = HUMIDITY_COLOR;
  }

  if (warningText.length() > 0) {
    tft.fillRect(0, barY - 2, tft.width(), barHeight + 4, ST77XX_BLACK);

    tft.fillRoundRect(10, barY, tft.width() - 20, barHeight, 8, warningColor);
    tft.drawRoundRect(10, barY, tft.width() - 20, barHeight, 8, ST77XX_WHITE);

    tft.setTextSize(1);
    tft.setTextColor(ST77XX_WHITE);

    int16_t textX, textY;
    uint16_t textW, textH;
    tft.getTextBounds(warningText, 0, 0, &textX, &textY, &textW, &textH);

    int textPosX = 10 + ((tft.width() - 20) - textW) / 2 - textX;
    int textPosY = barY + (barHeight - textH) / 2 - textY;

    tft.setCursor(textPosX, textPosY);
    tft.print(warningText);
  }
}

bool haveValuesChanged() {
  static unsigned long lastCheck = 0;
  unsigned long now = millis();
  
  if (now - lastCheck < 1000) {
    return false;
  }
  lastCheck = now;

  static float lastTemp = -999, lastHum = -999, lastLux = -999, lastExtLux = -999;
  static float lastExtTemp = -999, lastExtHum = -999;
  static int lastSoil = -999;
  static bool lastModule1 = false, lastModule2 = false, lastModule3 = false;
  
  bool changed = false;
  
  if (abs(lastTemp - internalTemperature) > 0.1) { lastTemp = internalTemperature; changed = true; }
  if (abs(lastHum - internalHumidity) > 0.1) { lastHum = internalHumidity; changed = true; }
  if (abs(lastLux - ldrInternalLux) > 10) { lastLux = ldrInternalLux; changed = true; }
  if (abs(lastExtLux - externalLux) > 5) { lastExtLux = externalLux; changed = true; }
  if (abs(lastExtTemp - externalTemperature) > 0.1) { lastExtTemp = externalTemperature; changed = true; }
  if (abs(lastExtHum - externalHumidity) > 0.1) { lastExtHum = externalHumidity; changed = true; }
  if (lastSoil != soilMoisturePercent) { lastSoil = soilMoisturePercent; changed = true; }
  if (lastModule1 != module1Active) { lastModule1 = module1Active; changed = true; }
  if (lastModule2 != module2Active) { lastModule2 = module2Active; changed = true; }
  if (lastModule3 != module3Active) { lastModule3 = module3Active; changed = true; }
  
  return changed;
}

void handleTouch() {
  if (ts.touched()) {
    TS_Point p = ts.getPoint();

    int x = map(p.x, TS_MINX, TS_MAXX, tft.width(), 0);
    int y = map(p.y, TS_MINY, TS_MAXY, tft.height(), 0);

    x = constrain(x, 0, tft.width() - 1);
    y = constrain(y, 0, tft.height() - 1);

    if (!touchPressed) {
      touchPressed = true;
      lastX = x;
      lastY = y;
      
      switch (currentState) {
        case STATE_HOME_SCREEN:
          handleHomeScreenTouch(x, y);
          break;
          
        case STATE_MAIN_MENU:
          handleMainMenuTouch(x, y);
          break;
          
        case STATE_WIFI_CONNECTING:
          break;
          
        case STATE_WIFI_CONNECTED:
          handleWiFiConnectedTouch(x, y);
          break;
          
        case STATE_MCP23017_TEST:
          handleMCP23017TestTouch(x, y);
          break;
          
        case STATE_RTC_INFO:
          handleRTCInfoTouch(x, y);
          break;
          
        case STATE_INTERNAL_SENSORS_INFO:
          handleInternalSensorsTouch(x, y);
          break;
          
        case STATE_EXTERNAL_SENSORS_INFO:
          handleExternalSensorsTouch(x, y);
          break;
          
        case STATE_INTERNAL_GRAPH_48H:
          handleInternalGraph48hTouch(x, y);
          break;
          
        case STATE_EXTERNAL_GRAPH_48H:
          handleExternalGraph48hTouch(x, y);
          break;
          
        case STATE_SOIL_MOISTURE_INFO:
          handleSoilMoistureTouch(x, y);
          break;
          
        case STATE_FLOW_SENSORS_INFO:
          handleFlowSensorsTouch(x, y);
          break;
          
        case STATE_RELAY_CONTROL:
          handleRelayControlTouch(x, y);
          break;
          
        case STATE_BOOTING:
          break;
          
        case STATE_TEMP_HUM_CONTROL:
          handleTempHumControlTouch(x, y);
          break;
          
        case STATE_SHADE_CONTROL:
          handleShadeControlTouch(x, y);
          break;
          
        case STATE_LIGHTING_CONTROL:
          handleLightingControlTouch(x, y);
          break;
          
        case STATE_EDIT_LIGHTING_BLOCK:
          handleEditLightingBlockTouch(x, y);
          break;
          
        case STATE_LIGHT_AUTO_CONTROL:
          handleLightAutoControlTouch(x, y);
          break;
          
        case STATE_EDIT_LIGHT_TIME:
          handleEditLightTimeTouch(x, y);
          break;
          
        case STATE_VENTILATION_CONTROL:
          handleVentilationControlTouch(x, y);
          break;
          
        case STATE_SD_MANAGEMENT:
          handleSDCardManagementTouch(x, y);
          break;
          
        case STATE_MODULE2_INFO:
          handleModule2InfoTouch(x, y);
          break;
          
        case STATE_LDR_CALIBRATION:
          handleLDRCalibrationTouch(x, y);
          break;

        case STATE_TROPICAL_PLANTS:
          if (x > 40 && x < 180 && y > 240 && y < 275) {
            showAddPlantScreen();
          }
          else if (x > 200 && x < 340 && y > 240 && y < 275) {
            if (plantCount > 0) {
              showSelectPlantForViewScreen();
            } else {
              tft.fillRect(100, 150, 280, 60, rgbTo565(20, 40, 70));
              tft.drawRect(100, 150, 280, 60, rgbTo565(0, 150, 255));
              tft.setTextSize(1);
              tft.setTextColor(rgbTo565(255, 150, 50));
              tft.setCursor(130, 170);
              tft.println("Ni dodanih rastlin!");
              tft.setCursor(110, 190);
              tft.setTextColor(rgbTo565(200, 220, 255));
              tft.println("Dodajte novo rastlino");
              delay(2000);
              showTropicalPlantsMenu();
            }
          }
          else if (x > 40 && x < 180 && y > 285 && y < 320) {
            if (plantCount > 0) {
              showSelectPlantForAdviceScreen();
            } else {
              tft.fillRect(100, 150, 280, 60, rgbTo565(20, 40, 70));
              tft.drawRect(100, 150, 280, 60, rgbTo565(0, 150, 255));
              tft.setTextSize(1);
              tft.setTextColor(rgbTo565(255, 150, 50));
              tft.setCursor(140, 170);
              tft.println("Ni rastlin!");
              tft.setCursor(120, 190);
              tft.setTextColor(rgbTo565(200, 220, 255));
              tft.println("Dodajte vsaj eno");
              delay(2000);
              showTropicalPlantsMenu();
            }
          }
          else if (x > 200 && x < 340 && y > 285 && y < 320) {
            showMainMenu();
          }
          break;
          
        case STATE_SELECT_PLANT_FOR_VIEW:
          {
            int startY = 95;
            int buttonHeight = 28;
            int buttonSpacing = 4;
            int maxButtons = 5;

            for (int i = 0; i < min(plantCount, maxButtons); i++) {
              int yPos = startY + i * (buttonHeight + buttonSpacing);
              if (x > 30 && x < 450 && y > yPos && y < yPos + buttonHeight) {
                showPlantDetailsScreen(i);
                return;
              }
            }

            int buttonY = startY + maxButtons * (buttonHeight + buttonSpacing) + 15;

            if (x > 30 && x < 230 && y > buttonY && y < buttonY + 30) {
              tft.fillRect(100, 150, 280, 80, rgbTo565(20, 40, 70));
              tft.drawRect(100, 150, 280, 80, rgbTo565(0, 150, 255));
              tft.setTextSize(1);
              tft.setTextColor(rgbTo565(255, 255, 255));
              tft.setCursor(130, 165);
              tft.println("Za katero rastlino?");

              int optionY = 190;
              for (int i = 0; i < min(3, plantCount); i++) {
                tft.fillRoundRect(120, optionY + i * 25, 240, 22, 5, rgbTo565(66, 135, 245));
                tft.drawRoundRect(120, optionY + i * 25, 240, 22, 5, ST77XX_WHITE);

                String optionText = String(i + 1) + ". " + myPlants[i].name;
                if (optionText.length() > 20) optionText = optionText.substring(0, 17) + "...";

                tft.setCursor(130, optionY + i * 25 + 5);
                tft.setTextColor(ST77XX_WHITE);
                tft.print(optionText);
              }

              unsigned long waitStart = millis();
              bool waiting = true;
              while (waiting && millis() - waitStart < 8000) {
                if (ts.touched()) {
                  TS_Point p = ts.getPoint();
                  int touchX = map(p.x, TS_MINX, TS_MAXX, tft.width(), 0);
                  int touchY = map(p.y, TS_MINY, TS_MAXY, tft.height(), 0);

                  for (int i = 0; i < min(3, plantCount); i++) {
                    if (touchX > 120 && touchX < 360 && touchY > optionY + i * 25 && touchY < optionY + i * 25 + 22) {

                      int speciesIndex = findPlantSpeciesIndex(myPlants[i].species);
                      if (speciesIndex >= 0) {
                        autoConfigureForPlant(speciesIndex);
                        showMessage("Nastavitve za " + myPlants[i].name, rgbTo565(80, 220, 100));
                      }
                      waiting = false;
                      break;
                    }
                  }
                }
                delay(10);
              }

              showSelectPlantForViewScreen();
              return;
            }

            if (x > 250 && x < 450 && y > buttonY && y < buttonY + 30) {
              showTropicalPlantsMenu();
              return;
            }
            break;
          }
          
        case STATE_SELECT_PLANT_FOR_ADVICE:
          {
            int startY = 85;
            int buttonHeight = 35;
            int buttonSpacing = 5;
            int maxButtons = 5;

            for (int i = 0; i < min(plantCount, maxButtons); i++) {
              int yPos = startY + i * (buttonHeight + buttonSpacing);
              if (x > 30 && x < 450 && y > yPos && y < yPos + buttonHeight) {
                String advice = getPlantCareAdvice(i);
                showAdvicePopup(advice);
                return;
              }
            }

            int buttonY = startY + maxButtons * (buttonHeight + buttonSpacing) + 10;
            if (x > 150 && x < 330 && y > buttonY && y < buttonY + 35) {
              showTropicalPlantsMenu();
            }
            break;
          }
          
        case STATE_ADD_PLANT:
          if (x > 30 && x < 75 && y > 160 && y < 185) {
            tempSpeciesIndex = (tempSpeciesIndex - 1 + tropicalSpeciesCount) % tropicalSpeciesCount;
            showAddPlantScreen();
          }
          else if (x > 90 && x < 135 && y > 160 && y < 185) {
            tempSpeciesIndex = (tempSpeciesIndex + 1) % tropicalSpeciesCount;
            showAddPlantScreen();
          }
          else if (x > 130 && x < 200 && y > 195 && y < 220) {
            tempIsVariegated = !tempIsVariegated;
            showAddPlantScreen();
          }
          else if (x > 250 && x < 295 && y > 115 && y < 140) {
            tempLocationZone = max(1, tempLocationZone - 1);
            showAddPlantScreen();
          }
          else if (x > 310 && x < 355 && y > 115 && y < 140) {
            tempLocationZone = min(3, tempLocationZone + 1);
            showAddPlantScreen();
          }
          else if (x > 40 && x < 180 && y > 265 && y < 300) {
            if (tempPlantName.length() == 0) {
              tempPlantName = "Rastlina " + String(plantCount + 1);
            }
            addPlantToCollection(tempPlantName, tropicalSpecies[tempSpeciesIndex].species,
                                 tempIsVariegated, "cona" + String(tempLocationZone));
            tempPlantName = "";
            tempSpeciesIndex = 0;
            tempIsVariegated = false;
            tempLocationZone = 1;
            showTropicalPlantsMenu();
          }
          else if (x > 200 && x < 340 && y > 265 && y < 300) {
            tempPlantName = "";
            tempSpeciesIndex = 0;
            tempIsVariegated = false;
            tempLocationZone = 1;
            showTropicalPlantsMenu();
          }
          else if (x > 360 && x < 500 && y > 265 && y < 300) {
            if (tempPlantName.length() == 0) {
              tempPlantName = "Moja " + tropicalSpecies[tempSpeciesIndex].commonName;
            } else {
              tempPlantName = "";
            }
            showAddPlantScreen();
          }
          break;
          
        case STATE_PLANT_DETAILS:
          {
            int buttonWidth = 105;
            int buttonSpacing = 10;
            int buttonY = 260;

            if (x > 15 && x < 15 + buttonWidth && y > buttonY && y < buttonY + 35) {
              startMistingForPlant(selectedPlantId);
              showPlantDetailsScreen(selectedPlantId);
            }
            else if (x > 15 + buttonWidth + buttonSpacing && x < 15 + 2 * buttonWidth + buttonSpacing && y > buttonY && y < buttonY + 35) {
              String advice = getPlantCareAdvice(selectedPlantId);
              showAdvicePopup(advice);
            }
            else if (x > 15 + 2 * (buttonWidth + buttonSpacing) && x < 15 + 3 * buttonWidth + 2 * buttonSpacing && y > buttonY && y < buttonY + 35) {
              showSelectPlantForViewScreen();
            }
            else if (x > 15 + 3 * (buttonWidth + buttonSpacing) && x < 15 + 4 * buttonWidth + 3 * buttonSpacing && y > buttonY && y < buttonY + 35) {
              deletePlant(selectedPlantId);
            }
          }
          break;
          
        case STATE_YEAR_ARCHIVE:
          if (x > 150 && x < 330 && y > 270 && y < 305) {
            showSoilMoistureInfo();
          }
          break;
          
        case STATE_SOIL_MOISTURE_GRAPH:
          if (x > 40 && x < 220 && y > 295 && y < 330) {
            showYearArchiveScreen();
          }
          else if (x > 260 && x < 440 && y > 295 && y < 330) {
            showSoilMoistureInfo();
          }
          break;
          
        case STATE_AIR_QUALITY:
          if (x > 150 && x < 330 && y > 260 && y < 295) {
            showInternalSensorsInfo();
          }
          break;
          
        case STATE_MODULE4_INFO:
          {
            int buttonY = 280;
            if (x > 40 && x < 200 && y > buttonY && y < buttonY + 35) {
              showAirQualityScreen();
            }
            else if (x > 210 && x < 330 && y > buttonY && y < buttonY + 35) {
              showModule4Info();
            }
            else if (x > 340 && x < 460 && y > buttonY && y < buttonY + 35) {
              showInternalSensorsInfo();
            }
          }
          break;
          
        default:
          break;
      }
    } else if (abs(x - lastX) > 2 || abs(y - lastY) > 2) {
      lastX = x;
      lastY = y;
    }
  } else {
    if (touchPressed) {
      touchPressed = false;
    }
  }
}

void showMCP23017Test() {
  tft.fillScreen(ST77XX_BLACK);
  tft.fillRect(0, 0, tft.width(), tft.height(), ST77XX_BLACK);

  tft.setTextSize(2);
  tft.setTextColor(rgbTo565(0, 200, 255));
  tft.setCursor(150, 10);
  tft.println("MCP23017 TEST");

  int frameHeight = 140;
  int frameY = 30;
  tft.drawRoundRect(20, frameY, 440, frameHeight, 10, rgbTo565(0, 150, 255));
  tft.fillRoundRect(21, frameY + 1, 438, frameHeight - 1, 10, rgbTo565(20, 40, 70));

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(220, 240, 255));
  tft.setCursor(40, frameY + 10);
  tft.println("RELEJI (pin 0-7):");
  tft.setCursor(260, frameY + 10);
  tft.println("VHODI (pin 8-15):");

  if (!mcpInitialized) {
    tft.setTextSize(1);
    tft.setTextColor(rgbTo565(255, 80, 80));
    tft.setCursor(100, frameY + 40);
    tft.println("MCP23017 NI INICIALIZIRAN!");
    tft.setCursor(80, frameY + 60);
    tft.println("Preverite povezave in naslov.");
  } else {
    drawAllMCPPins();
  }

  lastActivePinsCount = -1;

  int buttonY1 = 180;
  int buttonY2 = 230;
  int buttonWidth = 180;
  int buttonHeight = 40;

  drawIconButton(50, buttonY1, buttonWidth, buttonHeight, rgbTo565(66, 135, 245), "PREBERI PINOVE", "wifi");
  drawIconButton(250, buttonY1, buttonWidth, buttonHeight, rgbTo565(76, 175, 80), "TEST RELEJEV", "display");
  drawIconButton(50, buttonY2, buttonWidth, buttonHeight, rgbTo565(245, 67, 54), "NAZAJ", "info");
  drawIconButton(250, buttonY2, buttonWidth, buttonHeight, rgbTo565(156, 39, 176), "PONOVNA INIC.", "touch");

  currentState = STATE_MCP23017_TEST;
}

void drawAllMCPPins() {
  if (!mcpInitialized) return;

  uint16_t currentState = mcp.readGPIOAB();

  int boxSize = 35;
  int startX = 40;
  int startY = 60;

  for (int i = 0; i < 8; i++) {
    bool state = (currentState >> i) & 1;
    int x = startX + (i % 4) * 50;
    int y = startY + (i / 4) * 45;

    bool relayOn = !state;

    tft.fillRect(x, y, boxSize, boxSize, relayOn ? RELAY_ON_COLOR : RELAY_OFF_COLOR);
    tft.drawRect(x, y, boxSize, boxSize, ST77XX_WHITE);

    tft.setCursor(x + 12, y + 8);
    tft.setTextColor(ST77XX_WHITE);
    tft.print(i);

    tft.setCursor(x + 14, y + 20);
    tft.setTextColor(relayOn ? ST77XX_BLACK : ST77XX_WHITE);
    tft.print(relayOn ? "ON" : "OFF");
  }

  for (int i = 8; i < 16; i++) {
    bool state = (currentState >> i) & 1;
    int x = 260 + ((i - 8) % 4) * 50;
    int y = startY + ((i - 8) / 4) * 45;

    tft.fillRect(x, y, boxSize, boxSize, state ? rgbTo565(60, 60, 80) : rgbTo565(100, 200, 100));
    tft.drawRect(x, y, boxSize, boxSize, ST77XX_WHITE);

    tft.setCursor(x + 10, y + 8);
    tft.setTextColor(ST77XX_WHITE);
    tft.print(i);

    tft.setCursor(x + 14, y + 20);
    tft.setTextColor(state ? rgbTo565(200, 200, 200) : ST77XX_BLACK);
    tft.print(state ? "H" : "L");
  }

  updateActivePinsCount(currentState);
}

void displayMCP23017Pins() {
  if (!mcpInitialized) return;

  uint16_t currentState = mcp.readGPIOAB();

  int boxSize = 35;
  int startX = 40;
  int startY = 60;

  for (int i = 0; i < 8; i++) {
    bool state = (currentState >> i) & 1;
    int x = startX + (i % 4) * 50;
    int y = startY + (i / 4) * 45;

    bool relayOn = !state;

    tft.fillRect(x, y, boxSize, boxSize, relayOn ? RELAY_ON_COLOR : RELAY_OFF_COLOR);
    tft.drawRect(x, y, boxSize, boxSize, ST77XX_WHITE);

    tft.setCursor(x + 12, y + 8);
    tft.setTextColor(ST77XX_WHITE);
    tft.print(i);

    tft.setCursor(x + 14, y + 20);
    tft.setTextColor(relayOn ? ST77XX_BLACK : ST77XX_WHITE);
    tft.print(relayOn ? "ON" : "OFF");
  }

  for (int i = 8; i < 16; i++) {
    bool state = (currentState >> i) & 1;
    int x = 260 + ((i - 8) % 4) * 50;
    int y = startY + ((i - 8) / 4) * 45;

    tft.fillRect(x, y, boxSize, boxSize, state ? rgbTo565(60, 60, 80) : rgbTo565(100, 200, 100));
    tft.drawRect(x, y, boxSize, boxSize, ST77XX_WHITE);

    tft.setCursor(x + 10, y + 8);
    tft.setTextColor(ST77XX_WHITE);
    tft.print(i);

    tft.setCursor(x + 14, y + 20);
    tft.setTextColor(state ? rgbTo565(200, 200, 200) : ST77XX_BLACK);
    tft.print(state ? "H" : "L");
  }

  updateActivePinsCount(currentState);
}

void updateActivePinsCount(uint16_t gpioState) {
  int activePins = 0;
  for (int i = 8; i < 16; i++) {
    if (!((gpioState >> i) & 1)) activePins++;
  }

  int frameY = 30;
  int frameHeight = 140;

  tft.fillRect(40, frameY + frameHeight - 15, 200, 15, rgbTo565(20, 40, 70));

  tft.setCursor(40, frameY + frameHeight - 15);
  tft.setTextColor(rgbTo565(220, 240, 255));
  tft.print("Aktivni vhodi (LOW): ");
  tft.setTextColor(rgbTo565(255, 200, 50));
  tft.print(activePins);
  tft.print("/8");
}

void handleMCP23017Test() {
  if (mcpInitialized && currentState == STATE_MCP23017_TEST) {
    static unsigned long lastUpdate = 0;
    unsigned long currentTime = millis();

    if (currentTime - lastUpdate > MCP_DISPLAY_MIN_INTERVAL) {
      displayMCP23017Pins();
      lastUpdate = currentTime;
    }
  }
}

void handleMCP23017TestTouch(int x, int y) {
  int boxSize = 35;
  int startX = 40;
  int startY = 60;

  for (int i = 0; i < 8; i++) {
    int relX = startX + (i % 4) * 50;
    int relY = startY + (i / 4) * 45;

    if (x > relX && x < relX + boxSize && y > relY && y < relY + boxSize) {
      toggleRelay(i);
      displayMCP23017Pins();
      return;
    }
  }

  if (x > 50 && x < 230 && y > 230 && y < 270) {
    showMainMenu();
  }

  if (x > 250 && x < 430 && y > 230 && y < 270) {
    initializeMCP23017();
    initializeRelays();
    drawAllMCPPins();
  }
}

void showInternalSensorsInfo() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(INTERNAL_COLOR);
  tft.setCursor(150, 40);
  tft.println("VITRINA (MODUL 4)");

  tft.drawRoundRect(10, 50, 460, 170, 10, INTERNAL_COLOR);
  tft.fillRoundRect(11, 51, 458, 168, 10, rgbTo565(40, 20, 50));

  int leftColumnX = 30;
  int rightColumnX = 260;
  int yOffset = 65;
  int lineHeight = 16;

  tft.setTextSize(1);

  tft.setCursor(leftColumnX, yOffset);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.print("Modul 4: ");
  tft.setTextColor(module4Active ? rgbTo565(80, 220, 100) : rgbTo565(255, 80, 80));
  tft.println(module4Active ? "AKTIVEN" : "NEDOSEGLJIV");

  if (!module4Active) {
    tft.setCursor(leftColumnX, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(255, 100, 100));
    tft.println("Modul 4 ni dosegljiv!");
    tft.setCursor(leftColumnX, yOffset + 2 * lineHeight);
    tft.setTextColor(rgbTo565(255, 150, 50));
    tft.println("Preverite povezavo in napajanje");
  } else {
    tft.setCursor(leftColumnX, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(220, 200, 255));
    tft.print("Temp. zraka: ");
    tft.setTextColor(TEMP_COLOR);
    tft.printf("%.1f °C", module4AirTemp);

    int tempBarWidth = map(constrain(module4AirTemp, 0, 50), 0, 50, 0, 180);
    tft.fillRect(leftColumnX, yOffset + 2 * lineHeight + 2, 180, 12, rgbTo565(80, 60, 60));
    tft.fillRect(leftColumnX, yOffset + 2 * lineHeight + 2, tempBarWidth, 12, TEMP_COLOR);
    tft.drawRect(leftColumnX, yOffset + 2 * lineHeight + 2, 180, 12, ST77XX_WHITE);

    tft.setCursor(leftColumnX, yOffset + 3 * lineHeight + 8);
    tft.setTextColor(rgbTo565(220, 200, 255));
    tft.print("Vlaga zraka: ");
    tft.setTextColor(HUMIDITY_COLOR);
    tft.printf("%.1f %%", module4AirHum);

    int humidBarWidth = map(constrain(module4AirHum, 0, 100), 0, 100, 0, 180);
    tft.fillRect(leftColumnX, yOffset + 4 * lineHeight + 10, 180, 12, rgbTo565(60, 60, 80));
    tft.fillRect(leftColumnX, yOffset + 4 * lineHeight + 10, humidBarWidth, 12, HUMIDITY_COLOR);
    tft.drawRect(leftColumnX, yOffset + 4 * lineHeight + 10, 180, 12, ST77XX_WHITE);

    tft.setCursor(leftColumnX, yOffset + 5 * lineHeight + 18);
    tft.setTextColor(rgbTo565(220, 200, 255));
    tft.print("Svetloba: ");
    tft.setTextColor(LIGHT_COLOR);
    tft.printf("%d %%", module4LightPercent);

    int lightBarWidth = map(module4LightPercent, 0, 100, 0, 180);
    tft.fillRect(leftColumnX, yOffset + 6 * lineHeight + 20, 180, 12, rgbTo565(60, 60, 60));
    tft.fillRect(leftColumnX, yOffset + 6 * lineHeight + 20, lightBarWidth, 12, LIGHT_COLOR);
    tft.drawRect(leftColumnX, yOffset + 6 * lineHeight + 20, 180, 12, ST77XX_WHITE);

    tft.setCursor(rightColumnX, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(220, 200, 255));
    tft.print("Temp. zemlje: ");
    tft.setTextColor(rgbTo565(255, 150, 100));
    tft.printf("%.1f °C", module4SoilTemp);

    int soilTempBarWidth = map(constrain(module4SoilTemp, 0, 40), 0, 40, 0, 180);
    tft.fillRect(rightColumnX, yOffset + 2 * lineHeight + 2, 180, 12, rgbTo565(60, 60, 60));
    tft.fillRect(rightColumnX, yOffset + 2 * lineHeight + 2, soilTempBarWidth, 12, rgbTo565(255, 150, 100));
    tft.drawRect(rightColumnX, yOffset + 2 * lineHeight + 2, 180, 12, ST77XX_WHITE);

    tft.setCursor(rightColumnX, yOffset + 3 * lineHeight + 8);
    tft.setTextColor(rgbTo565(220, 200, 255));
    tft.print("Vlaga tal: ");
    
    uint16_t soilColor;
    if (module4SoilMoisture < 30) soilColor = rgbTo565(255, 100, 100);
    else if (module4SoilMoisture < 60) soilColor = rgbTo565(255, 200, 50);
    else soilColor = rgbTo565(100, 150, 255);
    tft.setTextColor(soilColor);
    tft.printf("%d %%", module4SoilMoisture);

    int soilBarWidth = map(module4SoilMoisture, 0, 100, 0, 180);
    tft.fillRect(rightColumnX, yOffset + 4 * lineHeight + 10, 180, 12, rgbTo565(60, 60, 60));
    tft.fillRect(rightColumnX, yOffset + 4 * lineHeight + 10, soilBarWidth, 12, soilColor);
    tft.drawRect(rightColumnX, yOffset + 4 * lineHeight + 10, 180, 12, ST77XX_WHITE);

    tft.setCursor(rightColumnX, yOffset + 5 * lineHeight + 18);
    tft.setTextColor(rgbTo565(220, 200, 255));
    tft.print("Zracni tlak: ");
    tft.setTextColor(PRESSURE_COLOR);
    tft.printf("%.1f hPa", module4Pressure);
  }

  int buttonWidth = 140;
  int buttonHeight = 35;
  int buttonSpacing = 20;

  int buttonY1 = 240;
  
  drawIconButton(40, buttonY1, buttonWidth, buttonHeight, 
                 INTERNAL_COLOR, "OSVEZI", "refresh");
  
  drawMenuButton(40 + buttonWidth + buttonSpacing, buttonY1, 
                 buttonWidth, buttonHeight, rgbTo565(76, 175, 80), "KAK. ZRAKA");

  int buttonY2 = buttonY1 + buttonHeight + 10;
  
  drawMenuButton(40, buttonY2, buttonWidth, buttonHeight, 
                 rgbTo565(245, 67, 54), "NAZAJ");

  currentState = STATE_INTERNAL_SENSORS_INFO;
}

void handleInternalSensorsTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int buttonWidth = 140;
  int buttonHeight = 35;
  int buttonSpacing = 20;
  int buttonY1 = 240;
  int buttonY2 = buttonY1 + buttonHeight + 10;

  if (x > 40 && x < 40 + buttonWidth && y > buttonY1 && y < buttonY1 + buttonHeight) {
    showInternalSensorsInfo();
    return;
  }

  if (x > 40 + buttonWidth + buttonSpacing && x < 40 + 2 * buttonWidth + buttonSpacing && y > buttonY1 && y < buttonY1 + buttonHeight) {
    showInternalGraph48hScreen();
    return;
  }

  if (x > 40 && x < 40 + buttonWidth && y > buttonY2 && y < buttonY2 + buttonHeight) {
    showInternalSensorsInfo();
    return;
  }

  if (x > 40 + buttonWidth + buttonSpacing && x < 40 + 2 * buttonWidth + buttonSpacing && y > buttonY2 && y < buttonY2 + buttonHeight) {
    showMainMenu();
    return;
  }
}

void handleInternalGraph48hTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int buttonWidth = 120;
  int buttonHeight = 30;
  
  int graphY = 60;
  int graphHeight = 160;
  int legendY = graphY + graphHeight + 20;
  int buttonY = legendY + 35;

  if (x > 40 && x < 40 + buttonWidth && y > buttonY && y < buttonY + buttonHeight) {
    updateGraphHistory();
    showInternalGraph48hScreen();
    return;
  }

  if (x > 180 && x < 180 + buttonWidth && y > buttonY && y < buttonY + buttonHeight) {
    showInternalSensorsInfo();
    return;
  }
}

void showFlowSensorsInfo() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(2);
  tft.setTextColor(rgbTo565(200, 100, 200));
  tft.setCursor(150, 30);
  tft.println("FLOW SENZORJI");

  tft.drawRoundRect(20, 50, 440, 180, 10, rgbTo565(200, 100, 200));
  tft.fillRoundRect(21, 51, 438, 178, 10, rgbTo565(40, 20, 40));

  int leftColumnX = 30;
  int middleColumnX = 170;
  int rightColumnX = 310;
  int yOffset = 70;
  int lineHeight = 15;

  tft.setTextSize(1);

  tft.setCursor(leftColumnX, yOffset);
  tft.setTextColor(FLOW_COLOR_1);
  tft.println("FLOW 1:");

  tft.setCursor(leftColumnX, yOffset + lineHeight);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.print("Pretok: ");
  tft.setTextColor(FLOW_COLOR_1);
  tft.print(String(flowRate1, 2));
  tft.println(" L/min");

  tft.setCursor(leftColumnX, yOffset + 2 * lineHeight);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.print("Skupaj: ");
  tft.setTextColor(FLOW_COLOR_1);
  tft.print(String(totalFlow1, 2));
  tft.println(" L");

  int flowBarWidth1 = map(constrain(flowRate1, 0, 10), 0, 10, 0, 120);
  tft.fillRect(leftColumnX, yOffset + 3 * lineHeight, 120, 10, rgbTo565(80, 40, 40));
  tft.fillRect(leftColumnX, yOffset + 3 * lineHeight, flowBarWidth1, 10, FLOW_COLOR_1);
  tft.drawRect(leftColumnX, yOffset + 3 * lineHeight, 120, 10, ST77XX_WHITE);

  tft.setCursor(middleColumnX, yOffset);
  tft.setTextColor(FLOW_COLOR_2);
  tft.println("FLOW 2:");

  tft.setCursor(middleColumnX, yOffset + lineHeight);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.print("Pretok: ");
  tft.setTextColor(FLOW_COLOR_2);
  tft.print(String(flowRate2, 2));
  tft.println(" L/min");

  tft.setCursor(middleColumnX, yOffset + 2 * lineHeight);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.print("Skupaj: ");
  tft.setTextColor(FLOW_COLOR_2);
  tft.print(String(totalFlow2, 2));
  tft.println(" L");

  int flowBarWidth2 = map(constrain(flowRate2, 0, 10), 0, 10, 0, 120);
  tft.fillRect(middleColumnX, yOffset + 3 * lineHeight, 120, 10, rgbTo565(40, 80, 40));
  tft.fillRect(middleColumnX, yOffset + 3 * lineHeight, flowBarWidth2, 10, FLOW_COLOR_2);
  tft.drawRect(middleColumnX, yOffset + 3 * lineHeight, 120, 10, ST77XX_WHITE);

  tft.setCursor(rightColumnX, yOffset);
  tft.setTextColor(FLOW_COLOR_3);
  tft.println("FLOW 3:");

  tft.setCursor(rightColumnX, yOffset + lineHeight);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.print("Pretok: ");
  tft.setTextColor(FLOW_COLOR_3);
  tft.print(String(flowRate3, 2));
  tft.println(" L/min");

  tft.setCursor(rightColumnX, yOffset + 2 * lineHeight);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.print("Skupaj: ");
  tft.setTextColor(FLOW_COLOR_3);
  tft.print(String(totalFlow3, 2));
  tft.println(" L");

  int flowBarWidth3 = map(constrain(flowRate3, 0, 10), 0, 10, 0, 120);
  tft.fillRect(rightColumnX, yOffset + 3 * lineHeight, 120, 10, rgbTo565(40, 40, 80));
  tft.fillRect(rightColumnX, yOffset + 3 * lineHeight, flowBarWidth3, 10, FLOW_COLOR_3);
  tft.drawRect(rightColumnX, yOffset + 3 * lineHeight, 120, 10, ST77XX_WHITE);

  tft.setCursor(leftColumnX, yOffset + 5 * lineHeight);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.println("Pulses/L: ");
  tft.setCursor(leftColumnX + 60, yOffset + 5 * lineHeight);
  tft.setTextColor(rgbTo565(255, 255, 150));
  tft.print(PULSES_PER_LITER);

  tft.setCursor(middleColumnX, yOffset + 5 * lineHeight);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.println("Skupaj vseh: ");
  tft.setCursor(middleColumnX + 70, yOffset + 5 * lineHeight);
  tft.setTextColor(rgbTo565(255, 255, 150));
  tft.print(String(totalFlow1 + totalFlow2 + totalFlow3, 2));
  tft.println(" L");

  tft.setCursor(rightColumnX, yOffset + 5 * lineHeight);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.println("Status: ");
  tft.setCursor(rightColumnX + 50, yOffset + 5 * lineHeight);
  tft.setTextColor(rgbTo565(80, 220, 100));
  tft.println("AKTIVEN");

  tft.setCursor(leftColumnX, yOffset + 7 * lineHeight);
  tft.fillRect(leftColumnX, yOffset + 6 * lineHeight, 10, 10, FLOW_COLOR_1);
  tft.setCursor(leftColumnX + 15, yOffset + 7 * lineHeight);
  tft.setTextColor(rgbTo565(200, 200, 200));
  tft.print("Flow 1");

  tft.setCursor(middleColumnX, yOffset + 7 * lineHeight);
  tft.fillRect(middleColumnX, yOffset + 6 * lineHeight, 10, 10, FLOW_COLOR_2);
  tft.setCursor(middleColumnX + 15, yOffset + 7 * lineHeight);
  tft.setTextColor(rgbTo565(200, 200, 200));
  tft.print("Flow 2");

  tft.setCursor(rightColumnX, yOffset + 7 * lineHeight);
  tft.fillRect(rightColumnX, yOffset + 6 * lineHeight, 10, 10, FLOW_COLOR_3);
  tft.setCursor(rightColumnX + 15, yOffset + 7 * lineHeight);
  tft.setTextColor(rgbTo565(200, 200, 200));
  tft.print("Flow 3");

  drawIconButton(50, 240, 180, 40, rgbTo565(200, 100, 200), "OSVEZI", "info");
  drawIconButton(250, 240, 180, 40, rgbTo565(76, 175, 80), "GRAF", "display");
  drawIconButton(50, 290, 180, 40, rgbTo565(245, 67, 54), "NAZAJ", "info");
  drawIconButton(250, 290, 180, 40, rgbTo565(156, 39, 176), "RESETIRAJ", "touch");

  currentState = STATE_FLOW_SENSORS_INFO;
}

void handleFlowSensorsTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  if (x > 50 && x < 230 && y > 240 && y < 280) {
    updateFlowSensors();
    showFlowSensorsInfo();
  }

  if (x > 250 && x < 430 && y > 240 && y < 280) {
    showFlowGraphScreen();
  }

  if (x > 50 && x < 230 && y > 290 && y < 330) {
    showMainMenu();
  }

  if (x > 250 && x < 430 && y > 290 && y < 330) {
    resetFlowTotals();
    showFlowSensorsInfo();
  }
}

void showFlowGraphScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(2);
  tft.setTextColor(rgbTo565(200, 100, 200));
  tft.setCursor(160, 30);
  tft.println("FLOW GRAF");

  tft.drawRoundRect(40, 60, 400, 150, 10, rgbTo565(200, 100, 200));
  tft.fillRoundRect(41, 61, 398, 148, 10, rgbTo565(40, 20, 40));

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(200, 200, 255));

  for (int i = 0; i <= 10; i += 2) {
    int y = 190 - (i * 12);
    tft.setCursor(20, y - 5);
    tft.print(i);
    tft.setCursor(30, y);
    tft.print("-");
  }

  tft.setCursor(60, 220);
  tft.print("Cas (zadnjih 10 meritev)");

  int prevX = 60;
  int prevFlow1Y = 190 - (int)(flowRate1 * 12);
  int prevFlow2Y = 190 - (int)(flowRate2 * 12);
  int prevFlow3Y = 190 - (int)(flowRate3 * 12);

  for (int i = 1; i <= 10; i++) {
    int x = 60 + (i * 30);
    int flow1Y = 190 - (int)((flowRate1 + random(-0.5, 0.5)) * 12);
    int flow2Y = 190 - (int)((flowRate2 + random(-0.5, 0.5)) * 12);
    int flow3Y = 190 - (int)((flowRate3 + random(-0.5, 0.5)) * 12);

    tft.drawLine(prevX, prevFlow1Y, x, flow1Y, FLOW_COLOR_1);
    tft.drawLine(prevX, prevFlow2Y, x, flow2Y, FLOW_COLOR_2);
    tft.drawLine(prevX, prevFlow3Y, x, flow3Y, FLOW_COLOR_3);

    tft.fillCircle(x, flow1Y, 2, FLOW_COLOR_1);
    tft.fillCircle(x, flow2Y, 2, FLOW_COLOR_2);
    tft.fillCircle(x, flow3Y, 2, FLOW_COLOR_3);

    prevX = x;
    prevFlow1Y = flow1Y;
    prevFlow2Y = flow2Y;
    prevFlow3Y = flow3Y;
  }

  tft.fillRect(60, 240, 10, 10, FLOW_COLOR_1);
  tft.setCursor(75, 240);
  tft.setTextColor(rgbTo565(200, 200, 255));
  tft.print("Flow 1");

  tft.fillRect(200, 240, 10, 10, FLOW_COLOR_2);
  tft.setCursor(215, 240);
  tft.print("Flow 2");

  tft.fillRect(340, 240, 10, 10, FLOW_COLOR_3);
  tft.setCursor(355, 240);
  tft.print("Flow 3");

  drawIconButton(180, 270, 120, 40, rgbTo565(245, 67, 54), "NAZAJ", "info");

  unsigned long graphStartTime = millis();
  while (millis() - graphStartTime < 10000) {
    handleTouch();

    if (ts.touched()) {
      TS_Point p = ts.getPoint();
      int touchX = map(p.x, TS_MINX, TS_MAXX, tft.width(), 0);
      int touchY = map(p.y, TS_MINY, TS_MAXY, tft.height(), 0);

      if (touchX > 180 && touchX < 300 && touchY > 270 && touchY < 310) {
        break;
      }
    }
    delay(10);
  }

  showFlowSensorsInfo();
}

void showSoilMoistureInfo() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(SOIL_COLOR);
  tft.setCursor(150, 40);
  tft.println("VLAGA TAL (MODUL 4)");

  tft.drawRoundRect(10, 50, 460, 170, 10, SOIL_COLOR);
  tft.fillRoundRect(11, 51, 458, 168, 10, rgbTo565(40, 20, 50));

  int leftColumnX = 30;
  int rightColumnX = 260;
  int yOffset = 65;
  int lineHeight = 16;

  tft.setTextSize(1);

  tft.setCursor(leftColumnX, yOffset);
  tft.setTextColor(rgbTo565(220, 200, 255));
  tft.print("Modul 4: ");
  tft.setTextColor(module4Active ? rgbTo565(80, 220, 100) : rgbTo565(255, 80, 80));
  tft.println(module4Active ? "AKTIVEN" : "NEDOSEGLJIV");

  if (!module4Active) {
    tft.setCursor(leftColumnX, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(255, 100, 100));
    tft.println("Modul 4 ni dosegljiv!");
    tft.setCursor(leftColumnX, yOffset + 2 * lineHeight);
    tft.setTextColor(rgbTo565(255, 150, 50));
    tft.println("Preverite povezavo in napajanje");
  } else {
    tft.setCursor(leftColumnX, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(220, 200, 255));
    tft.print("Temp. zemlje: ");
    tft.setTextColor(rgbTo565(255, 150, 100));
    tft.printf("%.1f °C", module4SoilTemp);

    tft.setCursor(leftColumnX, yOffset + 2 * lineHeight + 5);
    tft.setTextColor(rgbTo565(220, 200, 255));
    tft.print("Vlaga tal: ");
    
    uint16_t soilColor;
    if (module4SoilMoisture < 30) soilColor = rgbTo565(255, 100, 100);
    else if (module4SoilMoisture < 60) soilColor = rgbTo565(255, 200, 50);
    else soilColor = rgbTo565(100, 150, 255);
    tft.setTextColor(soilColor);
    tft.printf("%d %%", module4SoilMoisture);

    int moistureBarWidth = map(constrain(module4SoilMoisture, 0, 100), 0, 100, 0, 180);
    tft.fillRect(leftColumnX, yOffset + 3 * lineHeight + 7, 180, 15, rgbTo565(60, 60, 80));
    tft.fillRect(leftColumnX, yOffset + 3 * lineHeight + 7, moistureBarWidth, 15, soilColor);
    tft.drawRect(leftColumnX, yOffset + 3 * lineHeight + 7, 180, 15, ST77XX_WHITE);

    tft.setCursor(rightColumnX, yOffset);
    tft.setTextColor(rgbTo565(220, 200, 255));
    tft.println("Interpretacija:");

    tft.setCursor(rightColumnX, yOffset + lineHeight);
    if (module4SoilMoisture < 20) {
      tft.setTextColor(rgbTo565(255, 80, 80));
      tft.println("Zelo suho");
      tft.setCursor(rightColumnX, yOffset + 2 * lineHeight);
      tft.setTextColor(rgbTo565(220, 200, 180));
      tft.println("Potrebna zalivanje!");
    } else if (module4SoilMoisture < 40) {
      tft.setTextColor(rgbTo565(255, 200, 50));
      tft.println("Suho");
      tft.setCursor(rightColumnX, yOffset + 2 * lineHeight);
      tft.setTextColor(rgbTo565(220, 200, 180));
      tft.println("Kmalu zalijte");
    } else if (module4SoilMoisture < 60) {
      tft.setTextColor(rgbTo565(150, 255, 150));
      tft.println("Optimalno");
      tft.setCursor(rightColumnX, yOffset + 2 * lineHeight);
      tft.setTextColor(rgbTo565(220, 200, 180));
      tft.println("Dobro stanje");
    } else if (module4SoilMoisture < 80) {
      tft.setTextColor(rgbTo565(100, 150, 255));
      tft.println("Vlazno");
      tft.setCursor(rightColumnX, yOffset + 2 * lineHeight);
      tft.setTextColor(rgbTo565(220, 200, 180));
      tft.println("Ne zalivajte");
    } else {
      tft.setTextColor(rgbTo565(255, 50, 50));
      tft.println("Prevec mokro");
      tft.setCursor(rightColumnX, yOffset + 2 * lineHeight);
      tft.setTextColor(rgbTo565(220, 200, 180));
      tft.println("Izsusite tla!");
    }
  }

  int buttonWidth = 140;
  int buttonHeight = 35;
  int buttonSpacing = 20;

  int buttonY1 = 240;
  
  drawIconButton(40, buttonY1, buttonWidth, buttonHeight, SOIL_COLOR, "OSVEZI", "refresh");
  
  drawMenuButton(40 + buttonWidth + buttonSpacing, buttonY1, buttonWidth, buttonHeight, 
                 rgbTo565(76, 175, 80), "30D GRAF");

  int buttonY2 = buttonY1 + buttonHeight + 10;
  
  drawMenuButton(40, buttonY2, buttonWidth, buttonHeight, 
                 rgbTo565(245, 67, 54), "NAZAJ");

  currentState = STATE_SOIL_MOISTURE_INFO;
}

void handleSoilMoistureTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int buttonWidth = 140;
  int buttonHeight = 35;
  int buttonSpacing = 20;
  int buttonY1 = 240;
  int buttonY2 = buttonY1 + buttonHeight + 10;

  if (x > 40 && x < 40 + buttonWidth && y > buttonY1 && y < buttonY1 + buttonHeight) {
    showSoilMoistureInfo();
    return;
  }

  if (x > 40 + buttonWidth + buttonSpacing && x < 40 + 2 * buttonWidth + buttonSpacing && y > buttonY1 && y < buttonY1 + buttonHeight) {
    showSoilMoistureGraphScreen();
    return;
  }

  if (x > 40 && x < 40 + buttonWidth && y > buttonY2 && y < buttonY2 + buttonHeight) {
    calibrateSoilSensor();
    return;
  }

  if (x > 40 + buttonWidth + buttonSpacing && x < 40 + 2 * buttonWidth + buttonSpacing && y > buttonY2 && y < buttonY2 + buttonHeight) {
    showMainMenu();
    return;
  }
}

void showSoilMoistureGraphScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(SOIL_COLOR);
  tft.setCursor(130, 25);
  tft.println("30-DNEVNI GRAF - VLAGA TAL");

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(200, 200, 255));
  tft.setCursor(30, 45);
  
  int validCount = 0;
  for (int i = 0; i < SCREEN_HISTORY_SIZE; i++) {
    if (screenSoilHistory[i] > 0) validCount++;
  }
  
  tft.print("Meritev: ");
  tft.print(validCount);
  tft.print("/");
  tft.print(SCREEN_HISTORY_SIZE);
  
  int estimatedDays = validCount / 8;
  tft.print(" (");
  tft.print(estimatedDays);
  tft.println(" dni)");

  int graphX = 30;
  int graphY = 60;
  int graphWidth = 420;
  int graphHeight = 160;

  tft.fillRoundRect(graphX, graphY, graphWidth, graphHeight, 6, rgbTo565(20, 30, 40));
  tft.drawRoundRect(graphX, graphY, graphWidth, graphHeight, 6, SOIL_COLOR);

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(100, 120, 140));

  for (int day = 0; day <= 30; day += 5) {
    int xPos = graphX + (day * (graphWidth / 30));

    for (int y = graphY; y < graphY + graphHeight; y += 4) {
      tft.drawPixel(xPos, y, rgbTo565(60, 70, 80));
    }

    tft.setCursor(xPos - 10, graphY + graphHeight + 5);
    if (day == 0) {
      tft.print("zdaj");
    } else {
      tft.print("-");
      tft.print(day);
      tft.print("d");
    }
  }

  for (int percent = 0; percent <= 100; percent += 20) {
    int yPos = graphY + graphHeight - (percent * (graphHeight / 100));
    
    for (int x = graphX; x < graphX + graphWidth; x += 4) {
      tft.drawPixel(x, yPos, rgbTo565(60, 70, 80));
    }
    
    tft.setCursor(graphX - 25, yPos - 4);
    tft.setTextColor(rgbTo565(150, 150, 180));
    tft.print(percent);
    tft.print("%");
  }

  if (validCount > 1) {
    float validValues[SCREEN_HISTORY_SIZE];
    int indices[SCREEN_HISTORY_SIZE];
    int validIdx = 0;
    
    for (int i = 0; i < SCREEN_HISTORY_SIZE; i++) {
      if (screenSoilHistory[i] > 0) {
        validValues[validIdx] = screenSoilHistory[i];
        indices[validIdx] = i;
        validIdx++;
      }
    }
    
    for (int i = 0; i < validIdx - 1; i++) {
      for (int j = i + 1; j < validIdx; j++) {
        if (indices[i] > indices[j]) {
          int tempIdx = indices[i];
          indices[i] = indices[j];
          indices[j] = tempIdx;
          
          float tempVal = validValues[i];
          validValues[i] = validValues[j];
          validValues[j] = tempVal;
        }
      }
    }
    
    int oldestIdx = indices[0];
    int newestIdx = indices[validIdx - 1];
    int timeSpan = newestIdx - oldestIdx;
    if (timeSpan <= 0) timeSpan = validIdx;
    
    float prevX = -1, prevY = -1;
    
    for (int i = 0; i < validIdx; i++) {
      float age;
      if (timeSpan > 0) {
        age = (float)(newestIdx - indices[i]) / timeSpan;
      } else {
        age = (float)(validIdx - 1 - i) / (validIdx - 1);
      }
      
      int x = graphX + (int)(age * graphWidth);
      x = constrain(x, graphX, graphX + graphWidth);
      
      int y = graphY + graphHeight - (int)((validValues[i] / 100.0) * graphHeight);
      y = constrain(y, graphY, graphY + graphHeight);
      
      if (prevX != -1) {
        tft.drawLine(prevX, prevY, x, y, SOIL_COLOR);
        tft.drawLine(prevX + 1, prevY, x + 1, y, SOIL_COLOR);
      }
      
      tft.fillCircle(x, y, 2, SOIL_COLOR);
      
      prevX = x;
      prevY = y;
    }
    
    float sum = 0, minVal = 100, maxVal = 0;
    for (int i = 0; i < validIdx; i++) {
      sum += validValues[i];
      if (validValues[i] < minVal) minVal = validValues[i];
      if (validValues[i] > maxVal) maxVal = validValues[i];
    }
    
    tft.setTextSize(1);
    tft.setCursor(graphX + 10, graphY + 10);
    tft.setTextColor(rgbTo565(255, 200, 100));
    tft.printf("Povp: %.1f%%", sum/validIdx);
    
    tft.setCursor(graphX + 150, graphY + 10);
    tft.setTextColor(rgbTo565(100, 150, 255));
    tft.printf("Min: %.0f%%", minVal);
    
    tft.setCursor(graphX + 250, graphY + 10);
    tft.setTextColor(SOIL_COLOR);
    tft.printf("Max: %.0f%%", maxVal);
    
  } else {
    tft.setTextSize(1);
    tft.setTextColor(rgbTo565(255, 150, 50));
    
    tft.setCursor(graphX + graphWidth / 2 - 60, graphY + graphHeight / 2 - 20);
    tft.println("Premalo podatkov za graf");
    
    tft.setCursor(graphX + graphWidth / 2 - 50, graphY + graphHeight / 2);
    tft.println("Pocakajte na meritve");
    
    tft.setCursor(graphX + graphWidth / 2 - 40, graphY + graphHeight / 2 + 20);
    tft.printf("Veljavnih: %d/%d", validCount, SCREEN_HISTORY_SIZE);
  }

  int legendY = graphY + graphHeight + 20;
  tft.fillRect(50, legendY, 8, 8, SOIL_COLOR);
  tft.setCursor(62, legendY);
  tft.setTextColor(SOIL_COLOR);
  tft.print("Vlaga tal: ");
  tft.setTextColor(rgbTo565(200, 200, 255));
  tft.print(soilMoisturePercent);
  tft.print("%");
  
  tft.setCursor(250, legendY);
  tft.setTextColor(rgbTo565(150, 150, 150));
  tft.print("Suho/Mokro: ");
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.print(SOIL_DRY_VALUE);
  tft.print("/");
  tft.setTextColor(rgbTo565(100, 150, 255));
  tft.print(SOIL_WET_VALUE);

  int buttonY = legendY + 35;
  
  drawMenuButton(40, buttonY, 180, 35, SOIL_COLOR, "LETNI ARHIV");
  drawMenuButton(260, buttonY, 180, 35, rgbTo565(245, 67, 54), "NAZAJ");

  currentState = STATE_SOIL_MOISTURE_GRAPH;
}

void showRelayControl() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 150, 50));
  tft.setCursor(200, 40);
  tft.println("RELEJI");

  int frameY = 50;
  int frameHeight = 180;
  tft.drawRoundRect(20, frameY, 440, frameHeight, 10, rgbTo565(255, 150, 50));
  tft.fillRoundRect(21, frameY + 1, 438, frameHeight - 1, 10, rgbTo565(40, 30, 20));

  int leftColumnX = 40;
  int rightColumnX = 260;
  int startY = frameY + 12;
  int buttonWidth = 180;
  int buttonHeight = 32;
  int buttonSpacing = 5;

  String leftLabels[4] = { "GRETJE", "VLAZENJE", "RAZSVETLJAVA", "ZALIVANJE" };
  int leftRelays[4] = { 0, 2, 4, 6 };

  for (int i = 0; i < 4; i++) {
    int x = leftColumnX;
    int y = startY + i * (buttonHeight + buttonSpacing);

    uint16_t bgColor;
    String stateText;

    if (!relayControlEnabled) {
      bgColor = RELAY_DISABLED_COLOR;
      stateText = "ONEMOGOCEN";
    } else if (relayStates[leftRelays[i]]) {
      bgColor = RELAY_ON_COLOR;
      stateText = "VKLOPLJEN";
    } else {
      bgColor = RELAY_OFF_COLOR;
      stateText = "IZKLOPLJEN";
    }

    tft.fillRoundRect(x, y, buttonWidth, buttonHeight, 6, bgColor);
    tft.drawRoundRect(x, y, buttonWidth, buttonHeight, 6, ST77XX_WHITE);

    tft.setTextSize(1);

    int16_t textX, textY;
    uint16_t textW, textH;
    tft.getTextBounds(leftLabels[i], 0, 0, &textX, &textY, &textW, &textH);

    int textPosX = x + (buttonWidth - textW) / 2 - textX;
    int textPosY = y + (buttonHeight / 2 - textH) / 2 - textY;

    tft.setCursor(textPosX, textPosY);
    tft.setTextColor(bgColor == RELAY_ON_COLOR ? ST77XX_BLACK : ST77XX_WHITE);
    tft.print(leftLabels[i]);

    tft.getTextBounds(stateText, 0, 0, &textX, &textY, &textW, &textH);
    textPosX = x + (buttonWidth - textW) / 2 - textX;
    textPosY = y + buttonHeight / 2 + (buttonHeight / 2 - textH) / 2 - textY;

    tft.setCursor(textPosX, textPosY);
    tft.print(stateText);
  }

  String rightLabels[4] = { "HLAJENJE", "SUSENJE", "AVT. RAZSVETLJ.", "ROSENJE" };
  int rightRelays[4] = { 1, 3, 5, 7 };

  for (int i = 0; i < 4; i++) {
    int x = rightColumnX;
    int y = startY + i * (buttonHeight + buttonSpacing);

    uint16_t bgColor;
    String stateText;

    if (!relayControlEnabled) {
      bgColor = RELAY_DISABLED_COLOR;
      stateText = "ONEMOGOCEN";
    } else if (relayStates[rightRelays[i]]) {
      bgColor = RELAY_ON_COLOR;
      stateText = "VKLOPLJEN";
    } else {
      bgColor = RELAY_OFF_COLOR;
      stateText = "IZKLOPLJEN";
    }

    tft.fillRoundRect(x, y, buttonWidth, buttonHeight, 6, bgColor);
    tft.drawRoundRect(x, y, buttonWidth, buttonHeight, 6, ST77XX_WHITE);

    tft.setTextSize(1);

    int16_t textX, textY;
    uint16_t textW, textH;
    tft.getTextBounds(rightLabels[i], 0, 0, &textX, &textY, &textW, &textH);

    int textPosX = x + (buttonWidth - textW) / 2 - textX;
    int textPosY = y + (buttonHeight / 2 - textH) / 2 - textY;

    tft.setCursor(textPosX, textPosY);
    tft.setTextColor(bgColor == RELAY_ON_COLOR ? ST77XX_BLACK : ST77XX_WHITE);
    tft.print(rightLabels[i]);

    tft.getTextBounds(stateText, 0, 0, &textX, &textY, &textW, &textH);
    textPosX = x + (buttonWidth - textW) / 2 - textX;
    textPosY = y + buttonHeight / 2 + (buttonHeight / 2 - textH) / 2 - textY;

    tft.setCursor(textPosX, textPosY);
    tft.print(stateText);
  }

  int statusY = frameY + frameHeight + 5;

  tft.setTextSize(1);
  tft.setCursor(leftColumnX, statusY);
  tft.setTextColor(rgbTo565(220, 220, 255));
  tft.print("Nadzor: ");
  tft.setTextColor(relayControlEnabled ? rgbTo565(80, 220, 100) : rgbTo565(255, 80, 80));
  tft.println(relayControlEnabled ? "OMOGOCEN" : "ONEMOGOCEN");

  int activeCount = 0;
  for (int i = 0; i < RELAY_COUNT; i++) {
    if (relayStates[i] && relayControlEnabled) activeCount++;
  }

  tft.setCursor(rightColumnX, statusY);
  tft.setTextColor(rgbTo565(220, 220, 255));
  tft.print("Aktivni: ");
  tft.setTextColor(activeCount > 0 ? RELAY_ON_COLOR : rgbTo565(200, 200, 200));
  tft.printf("%d/%d", activeCount, RELAY_COUNT);

  int buttonY = statusY + 25;
  int controlButtonWidth = 140;
  int controlButtonHeight = 40;
  int controlSpacing = 10;
  int totalWidth = 3 * controlButtonWidth + 2 * controlSpacing;
  int startX = (tft.width() - totalWidth) / 2;

  drawMenuButton(startX, buttonY, controlButtonWidth, controlButtonHeight,
               rgbTo565(76, 175, 80), "VSE VKLOPI");

  drawMenuButton(startX + controlButtonWidth + controlSpacing, buttonY,
                            controlButtonWidth, controlButtonHeight,
                            rgbTo565(245, 67, 54), "VSE IZKLOPI");

  drawMenuButton(startX + 2 * (controlButtonWidth + controlSpacing), buttonY,
                            controlButtonWidth, controlButtonHeight,
                            rgbTo565(156, 39, 176), "NAZAJ");

  currentState = STATE_RELAY_CONTROL;
}

void handleRelayControlTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int frameY = 50;
  int leftColumnX = 40;
  int rightColumnX = 260;
  int startY = frameY + 12;
  int buttonWidth = 180;
  int buttonHeight = 32;
  int buttonSpacing = 5;

  int leftRelays[4] = { 0, 2, 4, 6 };
  int rightRelays[4] = { 1, 3, 5, 7 };

  for (int i = 0; i < 4; i++) {
    int relX = leftColumnX;
    int relY = startY + i * (buttonHeight + buttonSpacing);

    if (x > relX && x < relX + buttonWidth && y > relY && y < relY + buttonHeight) {
      if (relayControlEnabled) {
        toggleRelay(leftRelays[i]);
        showRelayControl();
      }
      return;
    }
  }

  for (int i = 0; i < 4; i++) {
    int relX = rightColumnX;
    int relY = startY + i * (buttonHeight + buttonSpacing);

    if (x > relX && x < relX + buttonWidth && y > relY && y < relY + buttonHeight) {
      if (relayControlEnabled) {
        toggleRelay(rightRelays[i]);
        showRelayControl();
      }
      return;
    }
  }

  int statusY = frameY + 180 + 5;
  int controlButtonWidth = 140;
  int controlButtonHeight = 40;
  int controlSpacing = 10;
  int totalWidth = 3 * controlButtonWidth + 2 * controlSpacing;
  int startX = (tft.width() - totalWidth) / 2;
  int buttonY = statusY + 25;

  if (x > startX && x < startX + controlButtonWidth && y > buttonY && y < buttonY + controlButtonHeight) {
    setAllRelays(true);
    showRelayControl();
    return;
  }

  if (x > startX + controlButtonWidth + controlSpacing && x < startX + 2 * controlButtonWidth + controlSpacing && y > buttonY && y < buttonY + controlButtonHeight) {
    setAllRelays(false);
    showRelayControl();
    return;
  }

  if (x > startX + 2 * (controlButtonWidth + controlSpacing) && x < startX + 3 * controlButtonWidth + 2 * controlSpacing && y > buttonY && y < buttonY + controlButtonHeight) {
    showMainMenu();
    return;
  }
}

void showMainMenu() {
  tft.fillScreen(ST77XX_BLACK);
  drawStatusBar();
  drawGradientBackground();

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(0, 150, 255));
  tft.setCursor(200, 30);
  tft.println("GLAVNI MENI");

  int buttonWidth = 140;
  int buttonHeight = 28;
  int col1X = 20;
  int col2X = 170;
  int col3X = 320;
  int startY = 55;
  int buttonSpacing = 30;

  // ===== PRVI STOLPEC (col1X) - 7 gumbov =====
  drawMenuButton(col1X, startY, buttonWidth, buttonHeight,
                            rgbTo565(66, 135, 245), "DOMOV");
  drawMenuButton(col1X, startY + buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(255, 100, 100), "NOTRANJI");
  drawMenuButton(col1X, startY + 2 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(139, 69, 19), "VLAGA TAL");
  drawMenuButton(col1X, startY + 3 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(255, 150, 50), "RELEJI");
  drawMenuButton(col1X, startY + 4 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(66, 135, 245), "NADZOR");
  drawMenuButton(col1X, startY + 5 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(255, 215, 0), "RAZ. REL5");
  drawMenuButton(col1X, startY + 6 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(100, 200, 100), "SD KARTICA");

  // ===== DRUGI STOLPEC (col2X) - 7 gumbov =====
  drawMenuButton(col2X, startY, buttonWidth, buttonHeight,
                            rgbTo565(156, 39, 176), "MCP TEST");
  drawMenuButton(col2X, startY + buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(0, 200, 255), "VENTILACIJA");
  drawMenuButton(col2X, startY + 2 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(0, 200, 255), "RTC INFO");
  drawMenuButton(col2X, startY + 3 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(100, 150, 255), "ZUNANJI");
  drawMenuButton(col2X, startY + 4 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(200, 100, 200), "FLOW");
  drawMenuButton(col2X, startY + 5 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(0, 150, 255), "SENCENJE");
  drawMenuButton(col2X, startY + 6 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(150, 150, 255), "WI-FI");

  // ===== TRETJI STOLPEC (col3X) - 8 gumbov =====
  drawMenuButton(col3X, startY, buttonWidth, buttonHeight,
                            rgbTo565(0, 200, 100), "TROPSKE");
  drawMenuButton(col3X, startY + buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(200, 165, 0), "AVTO REL6");
  drawMenuButton(col3X, startY + 2 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(100, 200, 255), "MODUL 2");
  drawMenuButton(col3X, startY + 3 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(76, 175, 80), "GRAFI 48h");
  drawMenuButton(col3X, startY + 4 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(255, 150, 0), "LETNI ARHIV");
  drawMenuButton(col3X, startY + 5 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(100, 200, 255), "TEST M3");
  drawMenuButton(col3X, startY + 6 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(100, 200, 255), "KAK. ZRAKA");
  drawMenuButton(col3X, startY + 7 * buttonSpacing, buttonWidth, buttonHeight,
                            rgbTo565(255, 165, 0), "LDR KALIB");

  tft.drawFastHLine(50, 40, 380, rgbTo565(0, 100, 200));

  currentState = STATE_MAIN_MENU;
  lastState = STATE_MAIN_MENU;
}

void handleMainMenuTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int buttonWidth = 140;
  int buttonHeight = 28;
  int col1X = 20;
  int col2X = 170;
  int col3X = 320;
  int startY = 55;
  int buttonSpacing = 30;
  int touchTolerance = 8;

  // ===== PRVI STOLPEC (col1X) =====
  if (x >= col1X - touchTolerance && x <= col1X + buttonWidth + touchTolerance) {
    
    // Gumb 0: DOMOV
    int btnTop = startY - touchTolerance;
    int btnBottom = startY + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      forceFullHomeScreenRedraw();
      return;
    }
    
    // Gumb 1: NOTRANJI
    btnTop = startY + buttonSpacing - touchTolerance;
    btnBottom = startY + buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showInternalSensorsInfo();
      return;
    }
    
    // Gumb 2: VLAGA TAL
    btnTop = startY + 2 * buttonSpacing - touchTolerance;
    btnBottom = startY + 2 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showSoilMoistureInfo();
      return;
    }
    
    // Gumb 3: RELEJI
    btnTop = startY + 3 * buttonSpacing - touchTolerance;
    btnBottom = startY + 3 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showRelayControl();
      return;
    }
    
    // Gumb 4: NADZOR
    btnTop = startY + 4 * buttonSpacing - touchTolerance;
    btnBottom = startY + 4 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showTempHumControlScreen();
      return;
    }
    
    // Gumb 5: RAZ. REL5
    btnTop = startY + 5 * buttonSpacing - touchTolerance;
    btnBottom = startY + 5 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showLightingControlScreen();
      return;
    }
    
    // Gumb 6: SD KARTICA
    btnTop = startY + 6 * buttonSpacing - touchTolerance;
    btnBottom = startY + 6 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showSDCardManagementScreen();
      return;
    }
  }

  // ===== DRUGI STOLPEC (col2X) =====
  else if (x >= col2X - touchTolerance && x <= col2X + buttonWidth + touchTolerance) {
    
    // Gumb 0: MCP TEST
    int btnTop = startY - touchTolerance;
    int btnBottom = startY + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showMCP23017Test();
      return;
    }
    
    // Gumb 1: VENTILACIJA
    btnTop = startY + buttonSpacing - touchTolerance;
    btnBottom = startY + buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showVentilationControlScreen();
      return;
    }
    
    // Gumb 2: RTC INFO
    btnTop = startY + 2 * buttonSpacing - touchTolerance;
    btnBottom = startY + 2 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showRTCInfo();
      return;
    }
    
    // Gumb 3: ZUNANJI
    btnTop = startY + 3 * buttonSpacing - touchTolerance;
    btnBottom = startY + 3 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showExternalSensorsInfo();
      return;
    }
    
    // Gumb 4: FLOW
    btnTop = startY + 4 * buttonSpacing - touchTolerance;
    btnBottom = startY + 4 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showFlowSensorsInfo();
      return;
    }
    
    // Gumb 5: SENCENJE
    btnTop = startY + 5 * buttonSpacing - touchTolerance;
    btnBottom = startY + 5 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showShadeControlScreen();
      return;
    }
    
    // Gumb 6: WI-FI
    btnTop = startY + 6 * buttonSpacing - touchTolerance;
    btnBottom = startY + 6 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showWiFiConnectedScreen();
      return;
    }
  }

  // ===== TRETJI STOLPEC (col3X) =====
  else if (x >= col3X - touchTolerance && x <= col3X + buttonWidth + touchTolerance) {
    
    // Gumb 0: TROPSKE
    int btnTop = startY - touchTolerance;
    int btnBottom = startY + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showTropicalPlantsMenu();
      return;
    }
    
    // Gumb 1: AVTO REL6
    btnTop = startY + buttonSpacing - touchTolerance;
    btnBottom = startY + buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showLightAutoControlScreen();
      return;
    }
    
    // Gumb 2: MODUL 2
    btnTop = startY + 2 * buttonSpacing - touchTolerance;
    btnBottom = startY + 2 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showModule2Info();
      return;
    }
    
    // Gumb 3: GRAFI 48h
    btnTop = startY + 3 * buttonSpacing - touchTolerance;
    btnBottom = startY + 3 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showInternalGraph48hScreen();
      return;
    }
    
    // Gumb 4: LETNI ARHIV
    btnTop = startY + 4 * buttonSpacing - touchTolerance;
    btnBottom = startY + 4 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showYearArchiveScreen();
      return;
    }
    
    // Gumb 5: TEST M3
    btnTop = startY + 5 * buttonSpacing - touchTolerance;
    btnBottom = startY + 5 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      testSendToModule3();
      return;
    }
    
    // Gumb 6: KAK. ZRAKA
    btnTop = startY + 6 * buttonSpacing - touchTolerance;
    btnBottom = startY + 6 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showAirQualityScreen();
      return;
    }
    
    // Gumb 7: LDR KALIB (NOVI GUMB)
    btnTop = startY + 7 * buttonSpacing - touchTolerance;
    btnBottom = startY + 7 * buttonSpacing + buttonHeight + touchTolerance;
    if (y >= btnTop && y <= btnBottom) {
      showLDRCalibrationScreen();
      return;
    }
  }
}

void showYearArchiveScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(SOIL_COLOR);
  tft.setCursor(150, 25);
  tft.println("LETNI ARHIV - VLAGA TAL");

  int validDays = 0;
  int newestIdx = -1;
  unsigned long newestDate = 0;
  
  for (int i = 0; i < ARCHIVE_HISTORY_SIZE; i++) {
    if (yearArchive[i].samples > 0) {
      validDays++;
      if (yearArchive[i].date > newestDate) {
        newestDate = yearArchive[i].date;
        newestIdx = i;
      }
    }
  }

  tft.setCursor(30, 45);
  tft.setTextColor(rgbTo565(200, 200, 255));
  tft.printf("Dni v arhivu: %d\n", validDays);
  
  if (sdInitialized && useSDCard) {
    tft.setCursor(30, 60);
    tft.setTextColor(rgbTo565(80, 220, 100));
    tft.println("Shranjeno na SD kartici");
  }

  if (validDays > 0) {
    int startY = 85;
    tft.setTextColor(rgbTo565(255, 200, 100));
    tft.setCursor(30, startY);
    tft.println("Zadnji vnosi:");
    
    for (int i = 0; i < min(8, validDays); i++) {
      int idx = (newestIdx - i + ARCHIVE_HISTORY_SIZE) % ARCHIVE_HISTORY_SIZE;
      if (yearArchive[idx].samples > 0) {
        int yPos = startY + 20 + i * 18;
        
        uint32_t date = yearArchive[idx].date;
        int year = date / 10000;
        int month = (date / 100) % 100;
        int day = date % 100;
        
        tft.setCursor(50, yPos);
        tft.setTextColor(rgbTo565(200, 220, 255));
        tft.printf("%02d.%02d.%d: ", day, month, year);
        
        float avg = yearArchive[idx].avgMoisture;
        if (avg < 20) tft.setTextColor(rgbTo565(255, 80, 80));
        else if (avg < 40) tft.setTextColor(rgbTo565(255, 200, 50));
        else if (avg < 60) tft.setTextColor(rgbTo565(150, 255, 150));
        else if (avg < 80) tft.setTextColor(rgbTo565(100, 150, 255));
        else tft.setTextColor(rgbTo565(255, 50, 50));
        
        tft.printf("%.1f%% (min %.0f%%, max %.0f%%)", 
                  avg, 
                  yearArchive[idx].minMoisture,
                  yearArchive[idx].maxMoisture);
      }
    }
  } else {
    tft.setCursor(80, 120);
    tft.setTextColor(rgbTo565(255, 150, 50));
    tft.println("Arhiv je prazen");
    tft.setCursor(60, 140);
    tft.println("Pocakajte na prve meritve");
  }

  drawMenuButton(150, 270, 180, 35, rgbTo565(245, 67, 54), "NAZAJ");
  
  currentState = STATE_YEAR_ARCHIVE;
}

void showAirQualityScreen() {
    tft.fillScreen(ST77XX_BLACK);
    drawGradientBackground();
    drawStatusBar();
    
    tft.setTextSize(1);
    tft.setTextColor(rgbTo565(100, 200, 255));
    tft.setCursor(140, 30);
    tft.println("KAKOVOST ZRAKA");
    
    tft.drawRoundRect(10, 45, 460, 200, 10, rgbTo565(100, 200, 255));
    tft.fillRoundRect(11, 46, 458, 198, 10, rgbTo565(20, 40, 70));
    
    int yOffset = 60;
    int lineHeight = 22;
    
    tft.setTextSize(1);
    
    tft.setCursor(20, yOffset);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("Modul 4: ");
    tft.setTextColor(module4Active ? rgbTo565(80, 220, 100) : rgbTo565(255, 80, 80));
    tft.println(module4Active ? "AKTIVEN" : "NEDOSEGLJIV");
    
    if (!module4Active) {
        tft.setCursor(100, 120);
        tft.setTextColor(rgbTo565(255, 150, 50));
        tft.println("Modul 4 ni dosegljiv!");
        tft.setCursor(80, 145);
        tft.setTextColor(rgbTo565(200, 220, 255));
        tft.println("Preverite povezavo in napajanje");
    } else {
        tft.setCursor(20, yOffset + lineHeight);
        tft.setTextColor(rgbTo565(220, 220, 255));
        tft.print("TVOC: ");
        uint16_t tvocColor = (module4TVOC < 400) ? rgbTo565(80, 220, 100) : 
                             (module4TVOC < 800) ? rgbTo565(255, 200, 50) : rgbTo565(255, 80, 80);
        tft.setTextColor(tvocColor);
        tft.printf("%.0f ppb", module4TVOC);
        
        tft.setCursor(20, yOffset + 2 * lineHeight);
        tft.setTextColor(rgbTo565(220, 220, 255));
        tft.print("eCO2: ");
        uint16_t co2Color = (module4ECO2 < 600) ? rgbTo565(80, 150, 255) : 
                            (module4ECO2 < 1500) ? rgbTo565(80, 220, 100) : rgbTo565(255, 150, 50);
        tft.setTextColor(co2Color);
        tft.printf("%.0f ppm", module4ECO2);
        
        tft.setCursor(20, yOffset + 3 * lineHeight);
        tft.setTextColor(rgbTo565(220, 220, 255));
        tft.print("eCH2O: ");
        tft.setTextColor(module4ECH2O > 300 ? rgbTo565(255, 150, 50) : rgbTo565(100, 200, 100));
        tft.printf("%.0f ppb", module4ECH2O);
        
        tft.setCursor(20, yOffset + 5 * lineHeight);
        tft.setTextColor(rgbTo565(255, 200, 100));
        tft.println("INTERPRETACIJA:");
        
        tft.setCursor(20, yOffset + 6 * lineHeight);
        tft.setTextColor(rgbTo565(200, 200, 200));
        if (module4TVOC > 800) {
            tft.println("⚠️ Visok TVOC - Rastline pod stresom! Prezracite.");
        } else if (module4ECO2 < 600) {
            tft.println("🌱 Nizek CO2 - Zmanjsajte prezracevanje.");
        } else if (module4ECO2 > 1500) {
            tft.println("🌿 Visok CO2 - Vklopite ventilator.");
        } else {
            tft.println("✅ Kakovost zraka ODLICNA!");
        }
        
        int barX = 250;
        int barY = yOffset + lineHeight;
        int barWidth = 200;
        int barHeight = 15;
        
        tft.fillRect(barX, barY, barWidth, barHeight, rgbTo565(60, 60, 60));
        int tvocWidth = map(constrain(module4TVOC, 0, 2000), 0, 2000, 0, barWidth);
        if (tvocWidth > 0) {
            tft.fillRect(barX, barY, tvocWidth, barHeight, tvocColor);
        }
        tft.drawRect(barX, barY, barWidth, barHeight, ST77XX_WHITE);
        
        barY = yOffset + 2 * lineHeight;
        tft.fillRect(barX, barY, barWidth, barHeight, rgbTo565(60, 60, 60));
        int co2Width = map(constrain(module4ECO2, 0, 2500), 0, 2500, 0, barWidth);
        if (co2Width > 0) {
            tft.fillRect(barX, barY, co2Width, barHeight, co2Color);
        }
        tft.drawRect(barX, barY, barWidth, barHeight, ST77XX_WHITE);
    }
    
    drawMenuButton(150, 260, 180, 35, rgbTo565(245, 67, 54), "NAZAJ");
    
    currentState = STATE_AIR_QUALITY;
}

void showModule4Info() {
    tft.fillScreen(ST77XX_BLACK);
    drawGradientBackground();
    drawStatusBar();
    
    tft.setTextSize(1);
    tft.setTextColor(rgbTo565(150, 200, 100));
    tft.setCursor(150, 30);
    tft.println("MODUL 4 - VITRINA");
    
    tft.drawRoundRect(10, 45, 460, 230, 10, rgbTo565(150, 200, 100));
    tft.fillRoundRect(11, 46, 458, 228, 10, rgbTo565(40, 50, 30));
    
    int leftX = 20;
    int rightX = 260;
    int yOffset = 60;
    int lineHeight = 22;
    
    tft.setTextSize(1);
    
    tft.setCursor(leftX, yOffset);
    tft.setTextColor(rgbTo565(220, 220, 255));
    tft.print("Status: ");
    tft.setTextColor(module4Active ? rgbTo565(80, 220, 100) : rgbTo565(255, 80, 80));
    tft.println(module4Active ? "AKTIVEN" : "NEDOSEGLJIV");
    
    if (module4Active) {
        unsigned long timeSinceLast = (millis() - lastModule4Time) / 1000;
        tft.setCursor(leftX + 100, yOffset);
        tft.setTextColor(rgbTo565(150, 150, 150));
        tft.printf("(zadnji prejem: %lu s)", timeSinceLast);
    }
    
    if (!module4Active) {
        tft.setCursor(100, 120);
        tft.setTextColor(rgbTo565(255, 150, 50));
        tft.println("Modul 4 ni dosegljiv!");
        tft.setCursor(80, 145);
        tft.setTextColor(rgbTo565(200, 220, 255));
        tft.println("Preverite:");
        tft.setCursor(80, 165);
        tft.setTextColor(rgbTo565(200, 200, 200));
        tft.println("  • Napajanje Modula 4");
        tft.setCursor(80, 185);
        tft.println("  • ESP-NOW povezavo");
        tft.setCursor(80, 205);
        tft.println("  • MAC naslov v kodi");
    } else {
        tft.setCursor(leftX, yOffset + lineHeight);
        tft.setTextColor(rgbTo565(220, 220, 255));
        tft.print("🌡️ Temp. zraka: ");
        tft.setTextColor(TEMP_COLOR);
        tft.printf("%.1f °C", module4AirTemp);
        
        int tempBarWidth = map(constrain(module4AirTemp, 0, 50), 0, 50, 0, 150);
        tft.fillRect(leftX + 130, yOffset + lineHeight - 2, 150, 10, rgbTo565(60, 60, 60));
        tft.fillRect(leftX + 130, yOffset + lineHeight - 2, tempBarWidth, 10, TEMP_COLOR);
        tft.drawRect(leftX + 130, yOffset + lineHeight - 2, 150, 10, ST77XX_WHITE);
        
        tft.setCursor(leftX, yOffset + 2 * lineHeight + 5);
        tft.setTextColor(rgbTo565(220, 220, 255));
        tft.print("💧 Vlaga zraka: ");
        tft.setTextColor(HUMIDITY_COLOR);
        tft.printf("%.1f %%", module4AirHum);
        
        int humBarWidth = map(constrain(module4AirHum, 0, 100), 0, 100, 0, 150);
        tft.fillRect(leftX + 130, yOffset + 2 * lineHeight + 3, 150, 10, rgbTo565(60, 60, 60));
        tft.fillRect(leftX + 130, yOffset + 2 * lineHeight + 3, humBarWidth, 10, HUMIDITY_COLOR);
        tft.drawRect(leftX + 130, yOffset + 2 * lineHeight + 3, 150, 10, ST77XX_WHITE);
        
        tft.setCursor(leftX, yOffset + 3 * lineHeight + 10);
        tft.setTextColor(rgbTo565(220, 220, 255));
        tft.print("📊 Zracni tlak: ");
        tft.setTextColor(PRESSURE_COLOR);
        tft.printf("%.1f hPa", module4Pressure);
        
        tft.setCursor(leftX, yOffset + 4 * lineHeight + 15);
        tft.setTextColor(rgbTo565(220, 220, 255));
        tft.print("☀️ Svetloba: ");
        tft.setTextColor(LIGHT_COLOR);
        tft.printf("%d %%", module4LightPercent);
        
        int lightBarWidth = map(module4LightPercent, 0, 100, 0, 150);
        tft.fillRect(leftX + 100, yOffset + 4 * lineHeight + 13, 150, 10, rgbTo565(60, 60, 60));
        tft.fillRect(leftX + 100, yOffset + 4 * lineHeight + 13, lightBarWidth, 10, LIGHT_COLOR);
        tft.drawRect(leftX + 100, yOffset + 4 * lineHeight + 13, 150, 10, ST77XX_WHITE);
        
        tft.setCursor(rightX, yOffset + lineHeight);
        tft.setTextColor(rgbTo565(220, 220, 255));
        tft.print("🌱 Temp. zemlje: ");
        tft.setTextColor(rgbTo565(255, 150, 100));
        tft.printf("%.1f °C", module4SoilTemp);
        
        int soilTempBarWidth = map(constrain(module4SoilTemp, 0, 40), 0, 40, 0, 150);
        tft.fillRect(rightX + 130, yOffset + lineHeight - 2, 150, 10, rgbTo565(60, 60, 60));
        tft.fillRect(rightX + 130, yOffset + lineHeight - 2, soilTempBarWidth, 10, rgbTo565(255, 150, 100));
        tft.drawRect(rightX + 130, yOffset + lineHeight - 2, 150, 10, ST77XX_WHITE);
        
        tft.setCursor(rightX, yOffset + 2 * lineHeight + 5);
        tft.setTextColor(rgbTo565(220, 220, 255));
        tft.print("💦 Vlaga tal: ");
        
        uint16_t soilColor;
        if (module4SoilMoisture < 30) soilColor = rgbTo565(255, 100, 100);
        else if (module4SoilMoisture < 60) soilColor = rgbTo565(255, 200, 50);
        else soilColor = rgbTo565(100, 150, 255);
        tft.setTextColor(soilColor);
        tft.printf("%d %%", module4SoilMoisture);
        
        int soilBarWidth = map(module4SoilMoisture, 0, 100, 0, 150);
        tft.fillRect(rightX + 100, yOffset + 2 * lineHeight + 3, 150, 10, rgbTo565(60, 60, 60));
        tft.fillRect(rightX + 100, yOffset + 2 * lineHeight + 3, soilBarWidth, 10, soilColor);
        tft.drawRect(rightX + 100, yOffset + 2 * lineHeight + 3, 150, 10, ST77XX_WHITE);
        
        tft.setCursor(rightX, yOffset + 3 * lineHeight + 10);
        tft.setTextColor(rgbTo565(220, 220, 255));
        tft.print("🌬️ TVOC: ");
        
        uint16_t tvocColor = (module4TVOC < 400) ? rgbTo565(80, 220, 100) : 
                             (module4TVOC < 800) ? rgbTo565(255, 200, 50) : rgbTo565(255, 80, 80);
        tft.setTextColor(tvocColor);
        tft.printf("%.0f ppb", module4TVOC);
        
        tft.setCursor(rightX, yOffset + 4 * lineHeight + 15);
        tft.setTextColor(rgbTo565(220, 220, 255));
        tft.print("🫧 eCO2: ");
        
        uint16_t co2Color = (module4ECO2 < 600) ? rgbTo565(80, 150, 255) : 
                            (module4ECO2 < 1500) ? rgbTo565(80, 220, 100) : rgbTo565(255, 150, 50);
        tft.setTextColor(co2Color);
        tft.printf("%.0f ppm", module4ECO2);
        
        if (module4ECH2O > 0) {
            tft.setCursor(rightX, yOffset + 5 * lineHeight + 20);
            tft.setTextColor(rgbTo565(220, 220, 255));
            tft.print("🧪 eCH2O: ");
            tft.setTextColor(module4ECH2O > 300 ? rgbTo565(255, 150, 50) : rgbTo565(100, 200, 100));
            tft.printf("%.0f ppb", module4ECH2O);
        }
        
        int interpretY = yOffset + 7 * lineHeight + 5;
        tft.drawFastHLine(leftX, interpretY - 5, tft.width() - 40, rgbTo565(80, 100, 80));
        
        tft.setCursor(leftX, interpretY);
        tft.setTextColor(rgbTo565(255, 200, 100));
        tft.println("INTERPRETACIJA:");
        
        tft.setCursor(leftX + 20, interpretY + lineHeight);
        tft.setTextColor(rgbTo565(200, 200, 200));
        
        if (module4TVOC > 800) {
            tft.println("⚠️ VISOK TVOC - Rastline pod stresom!");
            tft.setCursor(leftX + 20, interpretY + lineHeight + 16);
            tft.setTextColor(rgbTo565(255, 150, 50));
            tft.println("→ Prezracite prostor, preverite rastline");
        } else if (module4TVOC > 400) {
            tft.println("🌫️ POVISAN TVOC - Zrak je nekoliko onesnazen");
            tft.setCursor(leftX + 20, interpretY + lineHeight + 16);
            tft.setTextColor(rgbTo565(255, 200, 50));
            tft.println("→ Priporocljivo prezracevanje");
        } else {
            tft.println("✅ TVOC V REDU - Zrak je cist");
            tft.setCursor(leftX + 20, interpretY + lineHeight + 16);
            tft.setTextColor(rgbTo565(80, 220, 100));
            tft.println("→ Kakovost zraka odlicna");
        }
        
        tft.setCursor(leftX + 240, interpretY + lineHeight);
        if (module4ECO2 < 600) {
            tft.setTextColor(rgbTo565(80, 150, 255));
            tft.println("🌱 NIZEK CO2");
            tft.setCursor(leftX + 240, interpretY + lineHeight + 16);
            tft.setTextColor(rgbTo565(150, 150, 150));
            tft.println("→ Zmanjsajte prezracevanje");
        } else if (module4ECO2 > 1500) {
            tft.setTextColor(rgbTo565(255, 150, 50));
            tft.println("🌿 VISOK CO2");
            tft.setCursor(leftX + 240, interpretY + lineHeight + 16);
            tft.setTextColor(rgbTo565(150, 150, 150));
            tft.println("→ Vklopite ventilator");
        } else {
            tft.setTextColor(rgbTo565(80, 220, 100));
            tft.println("✅ OPTIMALEN CO2");
            tft.setCursor(leftX + 240, interpretY + lineHeight + 16);
            tft.setTextColor(rgbTo565(150, 150, 150));
            tft.println("→ Idealno za fotosintezo");
        }
        
        int buttonY = 280;
        
        drawMenuButton(40, buttonY, 160, 35, rgbTo565(66, 135, 245), "KAKOVOST ZRAKA");
        
        drawMenuButton(210, buttonY, 120, 35, rgbTo565(76, 175, 80), "OSVEZI");
        
        drawMenuButton(340, buttonY, 120, 35, rgbTo565(245, 67, 54), "NAZAJ");
    }
    
    currentState = STATE_MODULE4_INFO;
}

void showRTCInfo() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(2);
  tft.setTextColor(rgbTo565(0, 200, 255));
  tft.setCursor(180, 30);
  tft.println("RTC INFO");

  tft.drawRoundRect(20, 50, 440, 120, 10, rgbTo565(0, 150, 255));
  tft.fillRoundRect(21, 51, 438, 118, 10, rgbTo565(20, 40, 70));

  int yOffset = 70;
  int lineHeight = 15;

  tft.setTextSize(1);

  tft.setCursor(30, yOffset);
  tft.setTextColor(rgbTo565(200, 220, 255));
  tft.print("Status RTC: ");
  tft.setTextColor(rtcInitialized ? rgbTo565(80, 220, 100) : rgbTo565(255, 80, 80));
  tft.println(rtcInitialized ? "PRISOTEN" : "ODSOTEN");

  if (rtcInitialized) {
    DateTime now = rtc.now();

    tft.setCursor(30, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.print("Datum: ");
    tft.setTextColor(rgbTo565(150, 255, 150));
    tft.println(currentDate);

    tft.setCursor(30, yOffset + 2 * lineHeight);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.print("Cas: ");
    tft.setTextColor(rgbTo565(150, 200, 255));
    tft.println(currentTime);

    tft.setCursor(30, yOffset + 3 * lineHeight);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.print("Temperatura: ");
    tft.setTextColor(rgbTo565(255, 200, 50));
    tft.println(getRTCTemperature());

    tft.setCursor(30, yOffset + 4 * lineHeight);
    tft.setTextColor(rgbTo565(200, 220, 255));
    tft.print("NTP sinhronizacija: ");
    tft.setTextColor(ntpSynchronized ? rgbTo565(80, 220, 100) : rgbTo565(255, 200, 50));
    tft.println(ntpSynchronized ? "DA" : "NE");

    if (ntpSynchronized) {
      tft.setCursor(30, yOffset + 5 * lineHeight);
      tft.setTextColor(rgbTo565(200, 220, 255));
      tft.print("Zadnja sinhronizacija: ");
      unsigned long secs = (millis() - lastNTPSync) / 1000;
      if (secs < 60) {
        tft.setTextColor(rgbTo565(150, 255, 150));
        tft.printf("%lu s", secs);
      } else if (secs < 3600) {
        tft.setTextColor(rgbTo565(255, 255, 150));
        tft.printf("%lu min", secs / 60);
      } else {
        tft.setTextColor(rgbTo565(255, 200, 50));
        tft.printf("%lu h", secs / 3600);
      }
    }
  } else {
    tft.setCursor(30, yOffset + lineHeight);
    tft.setTextColor(rgbTo565(255, 100, 100));
    tft.println("RTC modul ni najden!");
  }

  drawIconButton(50, 180, 180, 40, rgbTo565(66, 135, 245), "SINHRONIZIRAJ", "refresh");
  drawIconButton(250, 180, 180, 40, rgbTo565(76, 175, 80), "OSVEZI", "display");
  drawIconButton(50, 230, 180, 40, rgbTo565(245, 67, 54), "NAZAJ", "info");
  drawIconButton(250, 230, 180, 40, rgbTo565(156, 39, 176), "PONOVNA INIC.", "touch");

  currentState = STATE_RTC_INFO;
}

void handleRTCInfoTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  if (x > 50 && x < 230 && y > 180 && y < 220) {
    if (wifiConnected) {
      syncTimeWithNTP();
    } else {
      showTemporaryMessage("Ni WiFi povezave!\nPovezite se na WiFi", rgbTo565(255, 80, 80), 2000);
    }
    showRTCInfo();
  }

  if (x > 250 && x < 430 && y > 180 && y < 220) {
    updateRTC();
    showRTCInfo();
  }

  if (x > 50 && x < 230 && y > 230 && y < 270) {
    showMainMenu();
  }

  if (x > 250 && x < 430 && y > 230 && y < 270) {
    initializeRTC();
    showRTCInfo();
  }
}

void saveSettingsOnShutdown() {
  saveAllSettings(true);
}

void loadSettingsOnBoot() {
  loadAllSettings(true);
}

void saveHistoryToSD() {
  if (!sdInitialized || !useSDCard) return;

  File histFile = SD.open(HISTORY_FILE, FILE_APPEND);
  if (!histFile) return;

  unsigned long timestamp = rtcInitialized ? rtc.now().unixtime() : millis() / 1000;

  for (int i = 0; i < 10; i++) {
    int idx = (graphHistoryIndex - i - 1 + GRAPH_HISTORY_SIZE) % GRAPH_HISTORY_SIZE;

    if (!isnan(tempHistory48h[idx]) && tempHistory48h[idx] != 0) {
      histFile.printf("%lu,temp_in,%.1f\n", timestamp - (i * 1800), tempHistory48h[idx]);
    }
    if (!isnan(humHistory48h[idx]) && humHistory48h[idx] != 0) {
      histFile.printf("%lu,hum_in,%.1f\n", timestamp - (i * 1800), humHistory48h[idx]);
    }
  }

  histFile.close();
}

void showSDCardInfo() {
  if (!sdInitialized) return;

  uint64_t cardSize = SD.cardSize() / (1024 * 1024);
  uint64_t usedSpace = SD.usedBytes() / (1024 * 1024);
  uint64_t freeSpace = cardSize - usedSpace;

  Serial.println("\n=== SD KARTICA INFO ===");
  Serial.printf("Velikost: %llu MB\n", cardSize);
  Serial.printf("Zasedeno: %llu MB\n", usedSpace);
  Serial.printf("Prostor: %llu MB\n", freeSpace);

  File root = SD.open("/");
  Serial.println("Datoteke na SD:");

  File file = root.openNextFile();
  while (file) {
    if (!file.isDirectory()) {
      Serial.printf("  %s (%d bytes)\n", file.name(), file.size());
    }
    file = root.openNextFile();
  }
  root.close();
}

void emergencySaveSettings() {
  Serial.println("\n=== VARNOSTNO SHRANJEVANJE OB IZKLOPU ===");

  if (!preferences.begin("emergency-save", false)) {
    return;
  }

  preferences.putBool("emergencySaved", true);
  preferences.putULong("emergencyTime", millis());

  for (int i = 0; i < min(4, RELAY_COUNT); i++) {
    preferences.putBool(("emerRelay" + String(i)).c_str(), relayStates[i]);
  }

  preferences.putFloat("emerTempMin", targetTempMin);
  preferences.putFloat("emerTempMax", targetTempMax);
  preferences.putFloat("emerHumMin", targetHumMin);
  preferences.putFloat("emerHumMax", targetHumMax);

  preferences.end();
}

void saveRelayStates() {
  preferences.begin("system-settings", false);

  for (int i = 0; i < RELAY_COUNT; i++) {
    preferences.putBool(("relay" + String(i)).c_str(), relayStates[i]);
  }

  preferences.putULong("lastRelayChange", millis());

  preferences.end();
}

void redrawCurrentScreen() {
  unsigned long now = millis();
  if (now - lastScreenDraw < MIN_DRAW_INTERVAL) {
    return;
  }
  lastScreenDraw = now;
  
  AppState stateToDraw = currentState;
  
  switch (stateToDraw) {
    case STATE_HOME_SCREEN:
      showHomeScreen();
      break;
    case STATE_MAIN_MENU:
      showMainMenu();
      break;
    case STATE_WIFI_CONNECTED:
      showWiFiConnectedScreen();
      break;
    case STATE_MCP23017_TEST:
      showMCP23017Test();
      break;
    case STATE_RTC_INFO:
      showRTCInfo();
      break;
    case STATE_INTERNAL_SENSORS_INFO:
      showInternalSensorsInfo();
      break;
    case STATE_EXTERNAL_SENSORS_INFO:
      showExternalSensorsInfo();
      break;
    case STATE_SOIL_MOISTURE_INFO:
      showSoilMoistureInfo();
      break;
    case STATE_FLOW_SENSORS_INFO:
      showFlowSensorsInfo();
      break;
    case STATE_RELAY_CONTROL:
      showRelayControl();
      break;
    case STATE_TEMP_HUM_CONTROL:
      showTempHumControlScreen();
      break;
    case STATE_SHADE_CONTROL:
      showShadeControlScreen();
      break;
    case STATE_LIGHTING_CONTROL:
      showLightingControlScreen();
      break;
    case STATE_LIGHT_AUTO_CONTROL:
      showLightAutoControlScreen();
      break;
    case STATE_EDIT_LIGHT_TIME:
      showEditLightTimeScreen();
      break;
    case STATE_EXTERNAL_GRAPH_48H:
      showExternalGraph48hScreen();
      break;
    case STATE_MODULE2_INFO:
      showModule2Info();
      break;
    case STATE_TROPICAL_PLANTS:
      showTropicalPlantsMenu();
      break;
    case STATE_SELECT_PLANT_FOR_VIEW:
      showSelectPlantForViewScreen();
      break;
    case STATE_SELECT_PLANT_FOR_ADVICE:
      showSelectPlantForAdviceScreen();
      break;
    case STATE_ADD_PLANT:
      showAddPlantScreen();
      break;
    case STATE_PLANT_DETAILS:
      if (selectedPlantId >= 0) showPlantDetailsScreen(selectedPlantId);
      else showTropicalPlantsMenu();
      break;
    case STATE_YEAR_ARCHIVE:
      showYearArchiveScreen();
      break;
    case STATE_SOIL_MOISTURE_GRAPH:
      showSoilMoistureGraphScreen();
      break;
    case STATE_VENTILATION_CONTROL:
      showVentilationControlScreen();
      break;
    case STATE_SD_MANAGEMENT:
      showSDCardManagementScreen();
      break;
    case STATE_INTERNAL_GRAPH_48H:
      showInternalGraph48hScreen();
      break;
    case STATE_AIR_QUALITY:
      showAirQualityScreen();
      break;
    case STATE_MODULE4_INFO:
      showModule4Info();
      break;
    case STATE_LDR_CALIBRATION:    // NOVO
      showLDRCalibrationScreen();
      break;
    default:
      break;
  }
  
  lastState = stateToDraw;
}

void updateTrendHistory() {
  unsigned long currentTime = millis();

  if (currentTime - lastHistoryUpdate > HISTORY_UPDATE_INTERVAL && !isnan(internalTemperature) && !isnan(internalHumidity)) {
    tempHistory[historyIndex] = internalTemperature;
    humHistory[historyIndex] = internalHumidity;
    historyIndex = (historyIndex + 1) % TREND_HISTORY_SIZE;
    lastHistoryUpdate = currentTime;

    static unsigned long lastTrendCheck = 0;
    if (currentTime - lastTrendCheck > 30000) {
      calculateTrends();
      lastTrendCheck = currentTime;
    }
  }
}

void calculateTrends() {
  if (historyIndex < 10) return;

  int recentCount = min(300, historyIndex);
  int oldCount = min(900, historyIndex);

  if (recentCount < 10 || oldCount < 30) return;

  float recentTempAvg = 0, oldTempAvg = 0;
  float recentHumAvg = 0, oldHumAvg = 0;

  int recentStart = (historyIndex - recentCount + TREND_HISTORY_SIZE) % TREND_HISTORY_SIZE;
  for (int i = 0; i < recentCount; i++) {
    int idx = (recentStart + i) % TREND_HISTORY_SIZE;
    recentTempAvg += tempHistory[idx];
    recentHumAvg += humHistory[idx];
  }
  recentTempAvg /= recentCount;
  recentHumAvg /= recentCount;

  int oldStart = (historyIndex - oldCount + TREND_HISTORY_SIZE) % TREND_HISTORY_SIZE;
  for (int i = 0; i < oldCount; i++) {
    int idx = (oldStart + i) % TREND_HISTORY_SIZE;
    oldTempAvg += tempHistory[idx];
    oldHumAvg += humHistory[idx];
  }
  oldTempAvg /= oldCount;
  oldHumAvg /= oldCount;

  float tempDiff = recentTempAvg - oldTempAvg;
  if (abs(tempDiff) > TREND_THRESHOLD) {
    tempTrend = (tempDiff > 0) ? TREND_UP : TREND_DOWN;
    lastTrendChangeTime = millis();
    lastTrendTemp = internalTemperature;
  } else if (abs(internalTemperature - lastTrendTemp) < TREND_THRESHOLD) {
    if (millis() - lastTrendChangeTime > TREND_TIMEOUT) {
      tempTrend = TREND_NONE;
    }
  }

  float humDiff = recentHumAvg - oldHumAvg;
  if (abs(humDiff) > TREND_THRESHOLD) {
    humTrend = (humDiff > 0) ? TREND_UP : TREND_DOWN;
    lastTrendChangeTime = millis();
    lastTrendHum = internalHumidity;
  } else if (abs(internalHumidity - lastTrendHum) < TREND_THRESHOLD) {
    if (millis() - lastTrendChangeTime > TREND_TIMEOUT) {
      humTrend = TREND_NONE;
    }
  }
}

void drawTrendArrow(int x, int y, int direction, uint16_t color) {
  int arrowSize = 16;

  switch (direction) {
    case TREND_UP:
      tft.fillTriangle(x - arrowSize / 2 - 2, y + arrowSize / 2 + 2,
                       x, y - arrowSize / 2 - 2,
                       x + arrowSize / 2 + 2, y + arrowSize / 2 + 2,
                       ST77XX_WHITE);
      tft.fillTriangle(x - arrowSize / 2, y + arrowSize / 2,
                       x, y - arrowSize / 2,
                       x + arrowSize / 2, y + arrowSize / 2,
                       color);
      break;

    case TREND_DOWN:
      tft.fillTriangle(x - arrowSize / 2 - 2, y - arrowSize / 2 - 2,
                       x, y + arrowSize / 2 + 2,
                       x + arrowSize / 2 + 2, y - arrowSize / 2 - 2,
                       ST77XX_WHITE);
      tft.fillTriangle(x - arrowSize / 2, y - arrowSize / 2,
                       x, y + arrowSize / 2,
                       x + arrowSize / 2, y - arrowSize / 2,
                       color);
      break;

    case TREND_STEADY:
      tft.fillRect(x - arrowSize / 2 - 2, y - 3 - 2, arrowSize + 4, 4 + 4, ST77XX_WHITE);
      tft.fillRect(x - arrowSize / 2 - 2, y + 3 - 2, arrowSize + 4, 4 + 4, ST77XX_WHITE);
      tft.fillRect(x - arrowSize / 2, y - 3, arrowSize, 4, color);
      tft.fillRect(x - arrowSize / 2, y + 3, arrowSize, 4, color);
      break;
  }
}

void initializeMCP23017() {
  Serial.println("Inicializacija MCP23017...");

  delay(50);

  for (int attempt = 0; attempt < 3; attempt++) {
    if (attempt > 0) {
      Serial.printf("Ponovni poskus MCP23017 (%d/3)...\n", attempt + 1);
      delay(100);
    }

    if (mcp.begin_I2C(MCP_ADDR)) {
      Serial.println("MCP23017 uspesno inicializiran!");

      for (int i = 0; i < 8; i++) {
        mcp.pinMode(i, OUTPUT);
        mcp.digitalWrite(i, HIGH);
      }

      for (int i = 8; i < 16; i++) {
        mcp.pinMode(i, INPUT_PULLUP);
      }

      mcpInitialized = true;
      lastGPIOState = mcp.readGPIOAB();
      return;
    }

    delay(50);
  }

  Serial.println("MCP23017 NI najden! Preverite povezave in naslov.");
  mcpInitialized = false;
}

void updateMCP23017() {
  if (!mcpInitialized) return;

  unsigned long currentTime = millis();
  if (currentTime - lastMCPUpdate > MCP_UPDATE_INTERVAL) {
    uint16_t currentState = mcp.readGPIOAB();

    if (currentState != lastGPIOState) {
      Serial.print("MCP23017 sprememba stanja: 0x");
      Serial.println(currentState, HEX);

      for (int i = 0; i < 16; i++) {
        bool oldState = (lastGPIOState >> i) & 1;
        bool newState = (currentState >> i) & 1;

        if (oldState != newState) {
          Serial.printf("  Pin %d: %s -> %s\n",
                        i,
                        oldState ? "HIGH" : "LOW",
                        newState ? "HIGH" : "LOW");
        }
      }

      lastGPIOState = currentState;
    }

    lastMCPUpdate = currentTime;
  }
}

void showBootScreen() {
  tft.fillScreen(ST77XX_BLACK);

  for (int y = 0; y < tft.height(); y++) {
    int progress = map(y, 0, tft.height(), 0, 100);
    uint8_t r = 10 + (progress * 2 / 100);
    uint8_t g = 20 + (progress * 3 / 100);
    uint8_t b = 40 + (progress * 6 / 100);
    tft.drawFastHLine(0, y, tft.width(), rgbTo565(r, g, b));
  }

  for (int i = 0; i < 30; i++) {
    int x = random(0, tft.width());
    int y = random(50, tft.height() - 50);
    int size = random(1, 4);
    tft.fillCircle(x, y, size, rgbTo565(60, 100, 150));
  }

  int centerX = tft.width() / 2;
  int centerY = tft.height() / 2 - 40;
  for (int r = 30; r > 0; r -= 2) {
    uint16_t color = rgbTo565(0, 150 - r * 3, 200 - r * 2);
    tft.drawCircle(centerX, centerY, r, color);
  }
  tft.fillCircle(centerX, centerY, 15, rgbTo565(0, 180, 240));

  drawHighlightedTitle(centerX - 150, centerY + 50, "Smart VitroGrov", 3);

  tft.setTextSize(1);
  tft.setTextColor(ST77XX_WHITE);
  tft.setCursor(centerX - 100, centerY + 140);
  tft.println("ESP32-S3 TFT Kontrolnik");

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(200, 200, 100));
  tft.setCursor(centerX - 40, centerY + 160);
  tft.println("Ver 3.0 + KLIMA NADZOR");

  tft.setCursor(centerX - 70, centerY + 190);
  tft.setTextColor(ST77XX_GREEN);
  tft.println("Inicializiram sisteme...");

  static int bootDot = 0;
  for (int i = 0; i < 5; i++) {
    tft.setCursor(centerX - 40 + i * 10, centerY + 210);
    tft.setTextColor(i <= bootDot ? ST77XX_YELLOW : rgbTo565(40, 40, 60));
    tft.print("●");
    delay(200);
    bootDot++;
  }

  currentState = STATE_BOOTING;
}

void drawHighlightedTitle(int x, int y, const char* text, int textSize) {
  tft.setTextSize(textSize);

  int charWidth = 6 * textSize;
  int currentX = x;

  for (int i = 0; i < strlen(text); i++) {
    char c = text[i];

    if (c == 'S' || c == 'V' || c == 'G') {
      tft.setTextColor(HIGHLIGHT_GREEN);
    } else {
      tft.setTextColor(ST77XX_WHITE);
    }

    tft.setCursor(currentX, y);
    tft.print(c);

    currentX += charWidth;
  }
}

void drawStatusBar() {
  if (WiFi.status() == WL_CONNECTED) {
    if (!wifiConnected) {
      wifiConnected = true;
      wifiSSID = WiFi.SSID();
      wifiIP = WiFi.localIP().toString();
      wifiRSSI = WiFi.RSSI();
    }
  } else {
    if (wifiConnected) {
      wifiConnected = false;
      wifiSSID = "Brez mreze";
      wifiIP = "N/A";
      wifiRSSI = 0;
    }
  }

  if (settingsChangedFlag) {
    tft.fillCircle(465, 10, 4, rgbTo565(255, 200, 0));
  }
  if (sdInitialized && useSDCard) {
    tft.fillCircle(475, 10, 3, rgbTo565(80, 220, 100));
  }

  for (int y = 0; y < STATUS_BAR_HEIGHT; y++) {
    uint16_t color = blendColor(STATUS_BAR_COLOR, rgbTo565(0, 60, 120), y * 100 / STATUS_BAR_HEIGHT);
    tft.drawFastHLine(0, y, tft.width(), color);
  }

  tft.drawFastHLine(0, STATUS_BAR_HEIGHT, tft.width(), rgbTo565(0, 150, 255));

  int textBaselineY = STATUS_BAR_HEIGHT / 2 + 4;

  int leftSectionX = 5;
  drawCompactWiFiIcon(leftSectionX, 2);
  tft.setFont(&FreeSansBold9pt7b);
  
  String displaySSID = wifiSSID;
  if (displaySSID.length() > 10) {
    displaySSID = displaySSID.substring(0, 8) + "..";
  }

  tft.setCursor(leftSectionX + 28, textBaselineY);
  if (wifiConnected) {
    tft.setTextColor(rgbTo565(200, 240, 255));
  } else {
    tft.setTextColor(rgbTo565(255, 150, 150));
  }
  tft.print(displaySSID);

  bool isDST = false;
  if (rtcInitialized) {
    DateTime now = rtc.now();
    
    int lastSundayMarch = 31;
    for (int day = 31; day >= 25; day--) {
        DateTime testDate(now.year(), 3, day, 0, 0, 0);
        if (testDate.dayOfTheWeek() == 0) {
            lastSundayMarch = day;
            break;
        }
    }
    
    int lastSundayOctober = 31;
    for (int day = 31; day >= 25; day--) {
        DateTime testDate(now.year(), 10, day, 0, 0, 0);
        if (testDate.dayOfTheWeek() == 0) {
            lastSundayOctober = day;
            break;
        }
    }
    
    if ((now.month() > 3 && now.month() < 10) ||
        (now.month() == 3 && (now.day() > lastSundayMarch || 
         (now.day() == lastSundayMarch && now.hour() >= 2))) ||
        (now.month() == 10 && (now.day() < lastSundayOctober || 
         (now.day() == lastSundayOctober && now.hour() < 3)))) {
        isDST = true;
    }
  }
  
  tft.setFont(&FreeSansBold9pt7b);
  
  String timeStr = "";
  String dateStr = "";
  if (rtcInitialized) {
    timeStr = currentTime.substring(0, 5);
    dateStr = currentDate.substring(0, 5);
  } else {
    timeStr = "--:--";
    dateStr = "--/--";
  }
  
  String fullDateTimeStr = timeStr + " " + dateStr;
  
  int16_t dummyX, dummyY;
  uint16_t dateTimeWidth, dateTimeHeight;
  tft.getTextBounds(fullDateTimeStr, 0, 0, &dummyX, &dummyY, &dateTimeWidth, &dateTimeHeight);
  
  int symbolWidth = 18;
  
  int blockStartX = 130;
  
  int symbolX = blockStartX + 9;
  int symbolY = STATUS_BAR_HEIGHT / 2;
  
  if (rtcInitialized) {
    if (isDST) {
      tft.fillCircle(symbolX, symbolY, 4, rgbTo565(255, 200, 50));
      tft.fillCircle(symbolX, symbolY, 2, rgbTo565(255, 255, 100));
      for (int i = 0; i < 8; i++) {
        float angle = i * 45 * PI / 180;
        int x1 = symbolX + 6 * cos(angle);
        int y1 = symbolY + 6 * sin(angle);
        int x2 = symbolX + 9 * cos(angle);
        int y2 = symbolY + 9 * sin(angle);
        tft.drawLine(x1, y1, x2, y2, rgbTo565(255, 200, 50));
      }
    } else {
      tft.fillCircle(symbolX, symbolY, 4, rgbTo565(200, 220, 255));
      tft.fillCircle(symbolX + 2, symbolY - 1, 3, STATUS_BAR_COLOR);
      tft.fillCircle(symbolX + 1, symbolY, 1, rgbTo565(180, 200, 240));
      tft.drawPixel(symbolX - 5, symbolY - 3, rgbTo565(255, 255, 200));
      tft.drawPixel(symbolX - 3, symbolY - 5, rgbTo565(255, 255, 200));
      tft.drawPixel(symbolX + 6, symbolY - 4, rgbTo565(255, 255, 200));
    }
  } else {
    tft.setCursor(symbolX - 3, textBaselineY);
    tft.setTextColor(rgbTo565(255, 100, 100));
    tft.print("?");
  }
  
  int textStartX = blockStartX + symbolWidth + 5;
  tft.setCursor(textStartX, textBaselineY);
  
  if (rtcInitialized) {
    tft.setTextColor(rgbTo565(150, 255, 150));
    tft.print(timeStr);
    tft.setTextColor(rgbTo565(150, 200, 255));
    tft.print(" ");
    tft.print(dateStr);
  } else {
    tft.setTextColor(rgbTo565(255, 200, 50));
    tft.print(fullDateTimeStr);
  }

  int moduleStartX = tft.width() - 220;
  
  tft.setFont(&FreeSansBold9pt7b);
  
  tft.setCursor(moduleStartX, textBaselineY);
  tft.setTextColor(module1Active ? rgbTo565(80, 220, 100) : rgbTo565(100, 100, 100));
  tft.print("M1");

  tft.setCursor(moduleStartX + 26, textBaselineY);
  tft.setTextColor(module2Active ? rgbTo565(80, 220, 100) : rgbTo565(100, 100, 100));
  tft.print("M2");

  tft.setCursor(moduleStartX + 52, textBaselineY);
  tft.setTextColor(module3Active ? rgbTo565(80, 220, 100) : rgbTo565(100, 100, 100));
  tft.print("M3");

  tft.setCursor(moduleStartX + 78, textBaselineY);
  tft.setTextColor(module4Active ? rgbTo565(80, 220, 100) : rgbTo565(100, 100, 100));
  tft.print("M4");

  int signalTextX = moduleStartX + 106;
  String signalString = "N/A";
  if (wifiConnected && wifiRSSI != 0) {
    signalString = String(wifiRSSI) + "dBm";
  } else if (autoConnecting) {
    signalString = "...";
  }

  int16_t signalX, signalY;
  uint16_t signalWidth, signalHeight;
  tft.getTextBounds(signalString, 0, 0, &signalX, &signalY, &signalWidth, &signalHeight);

  tft.setCursor(signalTextX, textBaselineY);
  if (wifiConnected && wifiRSSI != 0) {
    tft.setTextColor(getSignalColor(wifiRSSI));
  } else {
    tft.setTextColor(rgbTo565(150, 150, 150));
  }
  tft.print(signalString);

  int barsX = signalTextX + signalWidth + 5;
  if (barsX + 35 < tft.width()) {
    drawWiFiBars(barsX, 3, wifiRSSI);
  }

  tft.setFont();
}

void drawCompactWiFiIcon(int x, int y) {
  int iconHeight = 22;
  int centerX = x + 12;
  int centerY = STATUS_BAR_HEIGHT / 2;

  if (WiFi.status() == WL_CONNECTED) {
    for (int i = 0; i < 3; i++) {
      int radius = 5 + i * 4;
      uint16_t color = blendColor(WIFI_STRONG_COLOR, STATUS_BAR_COLOR, i * 40);
      for (int angle = 180; angle < 360; angle += 10) {
        int px = centerX + (radius * cos(angle * 3.14159 / 180));
        int py = centerY + (radius * sin(angle * 3.14159 / 180));
        if (px >= 0 && px < tft.width() && py >= 0 && py < tft.height()) {
          tft.drawPixel(px, py, color);
        }
      }
    }
    tft.fillCircle(centerX, centerY, 3, WIFI_STRONG_COLOR);
  } else if (autoConnecting) {
    tft.setFont(&FreeSansBold9pt7b);
    tft.setTextSize(1);
    tft.setCursor(x, centerY - 4);
    tft.setTextColor(rgbTo565(255, 200, 50));
    tft.print("...");
    tft.setFont();
  } else {
    tft.fillCircle(centerX, centerY, 5, WIFI_NONE_COLOR);
    tft.drawCircle(centerX, centerY, 5, ST77XX_WHITE);
  }
}

void drawWiFiBars(int x, int y, int rssi) {
  int barWidth = 5;
  int barSpacing = 1;
  int barHeights[4] = { 5, 9, 13, 17 };

  int totalBarsHeight = barHeights[3] + 2;
  int startY = (STATUS_BAR_HEIGHT - totalBarsHeight) / 2;

  int signalStrength = map(constrain(rssi, -100, -50), -100, -50, 0, 4);

  for (int i = 0; i < 4; i++) {
    int barX = x + i * (barWidth + barSpacing);
    int barHeight = barHeights[i];

    if (i < signalStrength) {
      uint16_t barColor = getSignalColor(rssi);
      tft.fillRect(barX, startY + (barHeights[3] - barHeight), barWidth, barHeight, barColor);
      tft.drawRect(barX, startY + (barHeights[3] - barHeight), barWidth, barHeight, blendColor(barColor, ST77XX_WHITE, 30));
    } else {
      tft.fillRect(barX, startY + (barHeights[3] - barHeight), barWidth, barHeight, rgbTo565(60, 60, 60));
      tft.drawRect(barX, startY + (barHeights[3] - barHeight), barWidth, barHeight, rgbTo565(100, 100, 100));
    }
  }
}

uint16_t getSignalColor(int rssi) {
  if (rssi >= -50) return rgbTo565(80, 220, 100);
  if (rssi >= -60) return rgbTo565(150, 220, 80);
  if (rssi >= -70) return rgbTo565(255, 200, 50);
  if (rssi >= -80) return rgbTo565(255, 150, 50);
  return rgbTo565(255, 80, 80);
}

void updateStatusBar() {
  unsigned long currentTime = millis();

  if (currentTime - lastStatusUpdate > STATUS_UPDATE_INTERVAL) {
    updateRTC();

    if (WiFi.status() == WL_CONNECTED && !wifiConnected) {
      wifiConnected = true;
      wifiSSID = WiFi.SSID();
      wifiIP = WiFi.localIP().toString();
      wifiRSSI = WiFi.RSSI();
    } else if (WiFi.status() != WL_CONNECTED && wifiConnected) {
      wifiConnected = false;
      wifiRSSI = 0;
    }

    drawStatusBar();

    lastStatusUpdate = currentTime;
  }
}

void drawGradientBackground() {
  for (int y = STATUS_BAR_HEIGHT; y < tft.height(); y++) {
    int progress = map(y, STATUS_BAR_HEIGHT, tft.height(), 0, 100);
    uint8_t r = 10 + (progress * 2 / 100);
    uint8_t g = 20 + (progress * 3 / 100);
    uint8_t b = 40 + (progress * 6 / 100);

    tft.drawFastHLine(0, y, tft.width(), rgbTo565(r, g, b));
  }

  for (int i = 0; i < 20; i++) {
    int x = random(0, tft.width());
    int y = random(STATUS_BAR_HEIGHT + 50, tft.height() - 50);
    int size = random(1, 3);
    uint16_t color = rgbTo565(40, 40, 60);
    tft.fillCircle(x, y, size, color);
  }
}

uint16_t blendColor(uint16_t color1, uint16_t color2, uint8_t ratio) {
  uint8_t r1 = (color1 >> 11) & 0x1F;
  uint8_t g1 = (color1 >> 5) & 0x3F;
  uint8_t b1 = color1 & 0x1F;

  uint8_t r2 = (color2 >> 11) & 0x1F;
  uint8_t g2 = (color2 >> 5) & 0x3F;
  uint8_t b2 = color2 & 0x1F;

  uint8_t r = r1 + ((r2 - r1) * ratio / 100);
  uint8_t g = g1 + ((g2 - g1) * ratio / 100);
  uint8_t b = b1 + ((b2 - b1) * ratio / 100);

  return (r << 11) | (g << 5) | b;
}

void highlightButton(int x, int y, int w, int h, bool highlight) {
  if (highlight) {
    for (int i = 0; i < 3; i++) {
      tft.drawRoundRect(x - i, y - i, w + 2 * i, h + 2 * i, 12 + i,
                        blendColor(ST77XX_YELLOW, ST77XX_WHITE, i * 30));
    }
  } else {
    for (int i = 0; i < 3; i++) {
      tft.drawRoundRect(x - i, y - i, w + 2 * i, h + 2 * i, 12 + i,
                        rgbTo565(10, 20, 40));
    }
  }
}

void drawHamburgerMenu(int x, int y, int size) {
  int barWidth = size;
  int barHeight = 3;
  int spacing = 5;
  
  tft.fillRoundRect(x - 5, y - 5, size + 10, 3 * (barHeight + spacing) - spacing + 10, 
                    6, rgbTo565(20, 20, 40));
  
  tft.drawRoundRect(x - 4, y - 4, size + 8, 3 * (barHeight + spacing) - spacing + 8,
                    5, rgbTo565(100, 150, 255));
  
  for (int i = 0; i < 3; i++) {
    int barY = y + i * (barHeight + spacing);
    
    tft.fillRoundRect(x, barY, barWidth, barHeight, 2, rgbTo565(255, 255, 255));
    
    tft.drawRoundRect(x, barY, barWidth, barHeight, 2, rgbTo565(200, 200, 255));
  }
  
  if (millis() % 2000 < 1000) {
    tft.fillCircle(x + size + 3, y + size/2 - 2, 2, rgbTo565(0, 255, 100));
  }
}

void showWiFiQuickInfo() {
  tft.fillRect(0, STATUS_BAR_HEIGHT, tft.width(), 60, rgbTo565(30, 60, 100));
  tft.drawRect(0, STATUS_BAR_HEIGHT, tft.width(), 60, rgbTo565(0, 150, 255));

  tft.setCursor(10, STATUS_BAR_HEIGHT + 10);
  tft.setTextColor(rgbTo565(220, 240, 255));
  tft.setTextSize(1);

  if (wifiConnected) {
    tft.print("SSID: ");
    tft.setTextColor(rgbTo565(150, 255, 150));
    tft.println(wifiSSID);

    tft.setCursor(10, STATUS_BAR_HEIGHT + 25);
    tft.setTextColor(rgbTo565(220, 240, 255));
    tft.print("IP: ");
    tft.setTextColor(rgbTo565(150, 200, 255));
    tft.println(wifiIP);

    tft.setCursor(10, STATUS_BAR_HEIGHT + 40);
    tft.setTextColor(rgbTo565(220, 240, 255));
    tft.print("Signal: ");
    tft.setTextColor(rgbTo565(255, 255, 150));
    tft.print(wifiRSSI);
    tft.println(" dBm");
  } else {
    tft.setTextColor(rgbTo565(255, 150, 150));
    tft.println("WiFi NI POVEZAN");
    tft.setCursor(10, STATUS_BAR_HEIGHT + 25);
    tft.setTextColor(rgbTo565(255, 255, 150));
    tft.println("Pritisni 'WiFi CONNECT'");
  }

  delay(3000);
  redrawCurrentScreen();
}

void drawSimpleButton(int x, int y, int w, int h, uint16_t color, const char* label) {
  drawNormalButton(x, y, w, h, color, label);
}

void drawWideButton(int x, int y, int w, int h, uint16_t color, const char* label) {
  drawMenuButton(x, y, w, h, color, label);
}

void drawCenteredButtonWithText(int x, int y, int w, int h, uint16_t color, const char* text) {
  drawMenuButton(x, y, w, h, color, text);
}

void diagnoseESPNow() {
    Serial.println("\n=== DIAGNOSTIKA ESP-NOW ===");

    wifi_mode_t currentMode = WiFi.getMode();
    Serial.printf("WiFi nacin: %d (1=STA, 2=AP, 3=AP+STA)\n", currentMode);

    Serial.print("MAC naslov glavnega sistema: ");
    Serial.println(WiFi.macAddress());
    
    Serial.printf("WiFi status: %d\n", WiFi.status());
    Serial.printf("WiFi kanal: %d\n", WiFi.channel());

    Serial.print("MAC naslov modula 1: ");
    for (int i = 0; i < 6; i++) {
        Serial.printf("%02X", module1MAC[i]);
        if (i < 5) Serial.print(":");
    }
    Serial.println();

    Serial.print("MAC naslov modula 2: ");
    for (int i = 0; i < 6; i++) {
        Serial.printf("%02X", module2MAC[i]);
        if (i < 5) Serial.print(":");
    }
    Serial.println();
    
    Serial.print("MAC naslov modula 3: ");
    for (int i = 0; i < 6; i++) {
        Serial.printf("%02X", module3MAC[i]);
        if (i < 5) Serial.print(":");
    }
    Serial.println();

    bool peer1Exists = esp_now_is_peer_exist(module1MAC);
    bool peer2Exists = esp_now_is_peer_exist(module2MAC);
    bool peer3Exists = esp_now_is_peer_exist(module3MAC);
    
    Serial.printf("Peer (modul 1) obstaja: %s\n", peer1Exists ? "DA" : "NE");
    Serial.printf("Peer (modul 2) obstaja: %s\n", peer2Exists ? "DA" : "NE");
    Serial.printf("Peer (modul 3) obstaja: %s\n", peer3Exists ? "DA" : "NE");

    esp_now_peer_num_t peerNum;
    esp_err_t err = esp_now_get_peer_num(&peerNum);
    if (err == ESP_OK) {
        Serial.printf("Stevilo peerjev: %d\n", peerNum.total_num);
    }

    Serial.printf("Modul 1 aktiven: %s (zadnji prejem pred %lu ms)\n",
                  module1Active ? "DA" : "NE",
                  module1Active ? (millis() - lastModule1Time) : 0);

    Serial.printf("Modul 2 aktiven: %s (zadnji prejem pred %lu ms)\n",
                  module2Active ? "DA" : "NE",
                  module2Active ? (millis() - lastModule2Time) : 0);

    Serial.printf("Modul 3 aktiven: %s (zadnji prejem pred %lu ms)\n",
                  module3Active ? "DA" : "NE",
                  module3Active ? (millis() - lastModule3Time) : 0);
                  
    Serial.println("=== KONEC DIAGNOSTIKE ===\n");
}

void diagnoseSDCard() {
  Serial.println("\n=== DIAGNOSTIKA SD KARTICE ===");

  Serial.printf("CS pin %d: ", SD_CS_PIN);
  pinMode(SD_CS_PIN, OUTPUT);
  digitalWrite(SD_CS_PIN, LOW);
  delay(10);
  Serial.println("OK");

  Serial.printf("SCK pin %d: ", SD_SCK_PIN);
  pinMode(SD_SCK_PIN, OUTPUT);
  digitalWrite(SD_SCK_PIN, HIGH);
  delay(10);
  digitalWrite(SD_SCK_PIN, LOW);
  Serial.println("OK");

  Serial.printf("MOSI pin %d: ", SD_MOSI_PIN);
  pinMode(SD_MOSI_PIN, OUTPUT);
  digitalWrite(SD_MOSI_PIN, HIGH);
  delay(10);
  digitalWrite(SD_MOSI_PIN, LOW);
  Serial.println("OK");

  Serial.printf("MISO pin %d: ", SD_MISO_PIN);
  pinMode(SD_MISO_PIN, INPUT_PULLUP);
  int misoValue = digitalRead(SD_MISO_PIN);
  Serial.printf("%d (1=HIGH, 0=LOW)\n", misoValue);

  Serial.println("\nPoskusam inicializirati z nizko hitrostjo...");

  digitalWrite(TFT_CS, HIGH);
  delay(10);

  SPI.begin(SD_SCK_PIN, SD_MISO_PIN, SD_MOSI_PIN, SD_CS_PIN);

  if (SD.begin(SD_CS_PIN, SPI, 400000)) {
    Serial.println("✓ SD kartica inicializirana pri 400kHz!");

    File root = SD.open("/");
    if (root) {
      Serial.println("  Vsebina korenske mape:");
      File file = root.openNextFile();
      while (file) {
        if (!file.isDirectory()) {
          Serial.printf("    %s (%d bytes)\n", file.name(), file.size());
        }
        file = root.openNextFile();
      }
      root.close();
    }

    SD.end();
  } else {
    Serial.println("✗ SD kartice ni mogoce inicializirati tudi pri 400kHz!");
  }

  digitalWrite(TFT_CS, LOW);

  Serial.println("=== KONEC DIAGNOSTIKE ===\n");
}

void diagnoseSDPins() {
  Serial.println("\n=== DIAGNOSTIKA SD PINOV ===");

  int sdPins[] = { SD_CS_PIN, SD_SCK_PIN, SD_MOSI_PIN, SD_MISO_PIN };
  const char* pinNames[] = { "CS", "SCK", "MOSI", "MISO" };

  for (int i = 0; i < 4; i++) {
    int pin = sdPins[i];
    Serial.printf("%s (pin %d): ", pinNames[i], pin);

    if (pin >= 0 && pin <= 48) {
      if ((pin >= 22 && pin <= 25) || pin == 30 || pin == 31) {
        Serial.println("⚠ OPOZORILO: Pin je rezerviran!");
      } else {
        Serial.println("OK (veljaven pin)");
      }
    } else {
      Serial.println("❌ NEVELJAVEN PIN!");
    }
  }

  pinMode(SD_MISO_PIN, INPUT_PULLUP);
  delay(10);
  int misoValue = digitalRead(SD_MISO_PIN);
  Serial.printf("\nMISO pin %d stanje: %d (1=HIGH, 0=LOW)\n",
                SD_MISO_PIN, misoValue);
  Serial.printf("Ce je 1: SD kartica se ne odziva\n");
  Serial.printf("Ce je 0: SD kartica je morda prisotna\n");

  Serial.println("=== KONEC DIAGNOSTIKE ===\n");
}

void testSDCard() {
  Serial.println("\n=== TEST SD KARTICE ===");

  if (!sdInitialized) {
    Serial.println("SD kartica ni inicializirana!");
    if (initializeSDCard()) {
    } else {
      return;
    }
  }

  File testFile = SD.open("/test.txt", FILE_WRITE);
  if (testFile) {
    testFile.println("Test pisanja na SD kartico");
    testFile.println(String("Cas: ") + millis());
    testFile.close();
    Serial.println("✓ Test pisanja USPESEN");

    testFile = SD.open("/test.txt", FILE_READ);
    if (testFile) {
      Serial.println("Vsebina test.txt:");
      while (testFile.available()) {
        Serial.write(testFile.read());
      }
      testFile.close();
      SD.remove("/test.txt");
    }
  } else {
    Serial.println("✗ Test pisanja NEUSPESEN");
  }
}

void testSDHardware() {
  Serial.println("\n=== TEST SD HARDWARE ===");

  int pins[] = { SD_CS_PIN, SD_SCK_PIN, SD_MOSI_PIN, SD_MISO_PIN };
  const char* names[] = { "CS", "SCK", "MOSI", "MISO" };

  for (int i = 0; i < 4; i++) {
    pinMode(pins[i], INPUT_PULLUP);
    delay(10);
    int val = digitalRead(pins[i]);
    Serial.printf("%s (pin %d): %d\n", names[i], pins[i], val);
  }

  Serial.println("=== KONEC TESTA ===\n");
}

bool syncTimeWithNTP() {
    if (!wifiConnected) {
        Serial.println("NTP: WiFi ni povezan, ne morem sinhronizirati");
        return false;
    }

    Serial.println("NTP: Sinhroniziram čas...");
    
    configTime(GMT_OFFSET_SEC, DAYLIGHT_OFFSET_SEC, NTP_SERVER);

    struct tm timeinfo;
    int attempts = 0;
    bool timeSet = false;
    
    while (!getLocalTime(&timeinfo, 500) && attempts < 20) {
        attempts++;
        Serial.printf("NTP: Poskus %d/20\n", attempts);
        delay(500);
    }
    
    if (attempts >= 20) {
        Serial.println("NTP: Časovna sinhronizacija ni uspela!");
        return false;
    }

    if (rtcInitialized) {
        int offsetHours = GMT_OFFSET_SEC / 3600;
        if (timeinfo.tm_isdst > 0) {
            offsetHours += 1;
        }
        
        DateTime ntpTime(
            timeinfo.tm_year + 1900,
            timeinfo.tm_mon + 1,
            timeinfo.tm_mday,
            timeinfo.tm_hour,
            timeinfo.tm_min,
            timeinfo.tm_sec);

        rtc.adjust(ntpTime);
        ntpSynchronized = true;
        lastNTPSync = millis();
        
        Serial.printf("NTP: Čas nastavljen na %02d:%02d:%02d %02d.%02d.%04d\n",
                      timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec,
                      timeinfo.tm_mday, timeinfo.tm_mon + 1, timeinfo.tm_year + 1900);
        Serial.printf("NTP: Poletni čas: %s\n", timeinfo.tm_isdst ? "DA (CEST)" : "NE (CET)");
        return true;
    }

    return false;
}

void checkWiFiChannel() {
    Serial.println("\n=== PREVERJANJE WIFI KANALA ===");
    
    if (WiFi.status() == WL_CONNECTED) {
        int currentChannel = WiFi.channel();
        Serial.printf("Trenutni WiFi kanal: %d\n", currentChannel);
        
        if (currentChannel != 1) {
            Serial.printf("⚠️ WiFi je na kanalu %d, moduli pa na kanalu 1\n", currentChannel);
            Serial.println("   Za ESP-NOW komunikacijo morata biti kanala enaka!");
            Serial.println("   Priporocilo: Spremenite kanal routerja na 1");
        } else {
            Serial.println("✅ Kanal je pravilno nastavljen na 1");
        }
    } else {
        Serial.println("WiFi ni povezan, kanal ni določen");
        
        esp_wifi_set_promiscuous(true);
        esp_wifi_set_channel(1, WIFI_SECOND_CHAN_NONE);
        esp_wifi_set_promiscuous(false);
        Serial.println("📡 Kanal nastavljen na 1 za ESP-NOW (WiFi ni povezan)");
    }
    
    Serial.println("================================\n");
}

void checkNTPSync() {
  if (wifiConnected && !ntpSynchronized) {
    syncTimeWithNTP();
  }

  if (wifiConnected && ntpSynchronized) {
    unsigned long currentTime = millis();
    if (currentTime - lastNTPSync > 6 * 3600000UL) {
      syncTimeWithNTP();
    }
  }
}

void initializeRTC() {
  Serial.println("Inicializacija RTC (DS3231)...");

  Wire.beginTransmission(0x68);
  byte error = Wire.endTransmission();

  if (error != 0) {
    rtcInitialized = false;
    return;
  }

  if (!rtc.begin()) {
    rtcInitialized = false;
    return;
  }

  if (rtc.lostPower()) {
  }

  rtcInitialized = true;

  updateRTC();
}

void updateRTC() {
  if (!rtcInitialized) return;

  unsigned long currentTimeMillis = millis();
  if (currentTimeMillis - lastRTCUpdate > RTC_UPDATE_INTERVAL) {
    DateTime now = rtc.now();

    char timeBuffer[9];
    snprintf(timeBuffer, sizeof(timeBuffer), "%02d:%02d:%02d",
             now.hour(), now.minute(), now.second());
    currentTime = String(timeBuffer);

    char dateBuffer[11];
    snprintf(dateBuffer, sizeof(dateBuffer), "%02d/%02d/%04d",
             now.day(), now.month(), now.year());
    currentDate = String(dateBuffer);

    lastRTCUpdate = currentTimeMillis;
  }
}

void checkDaylightSavingTime() {
    if (!rtcInitialized) return;
    
    DateTime now = rtc.now();
    
    bool isDST = false;
    
    int lastSundayMarch = 31;
    for (int day = 31; day >= 25; day--) {
        DateTime testDate(now.year(), 3, day, 0, 0, 0);
        if (testDate.dayOfTheWeek() == 0) {
            lastSundayMarch = day;
            break;
        }
    }
    
    int lastSundayOctober = 31;
    for (int day = 31; day >= 25; day--) {
        DateTime testDate(now.year(), 10, day, 0, 0, 0);
        if (testDate.dayOfTheWeek() == 0) {
            lastSundayOctober = day;
            break;
        }
    }
    
    if ((now.month() > 3 && now.month() < 10) ||
        (now.month() == 3 && (now.day() > lastSundayMarch || 
         (now.day() == lastSundayMarch && now.hour() >= 2))) ||
        (now.month() == 10 && (now.day() < lastSundayOctober || 
         (now.day() == lastSundayOctober && now.hour() < 3)))) {
        isDST = true;
    }
    
    static bool lastDSTStatus = false;
    if (isDST != lastDSTStatus) {
        Serial.printf("🌞 Poletni čas: %s\n", isDST ? "AKTIVEN (CEST)" : "NEAKTIVEN (CET)");
        lastDSTStatus = isDST;
    }
}

String getRTCTemperature() {
  if (!rtcInitialized) return "N/A";

  float temp = rtc.getTemperature();
  return String(temp, 1) + " C";
}

String getSoilMoistureString() {
  return String(soilMoisturePercent) + "%";
}

void calibrateSoilSensor() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 200, 50));
  tft.setCursor(160, 25);
  tft.println("KALIBRACIJA SENZORJA");

  tft.drawRoundRect(20, 50, 440, 180, 10, rgbTo565(255, 200, 50));
  tft.fillRoundRect(21, 51, 438, 178, 10, rgbTo565(40, 30, 20));

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(220, 200, 180));
  tft.setCursor(40, 70);
  tft.println("Navodila za kalibracijo:");
  tft.setCursor(40, 90);
  tft.println("1. Senzor postavite v SUH zrak");
  tft.setCursor(40, 110);
  tft.println("2. Pritisnite 'SUHO'");
  tft.setCursor(40, 130);
  tft.println("3. Senzor potopite v VODO");
  tft.setCursor(40, 150);
  tft.println("4. Pritisnite 'MOKRO'");
  tft.setCursor(40, 170);
  tft.println("5. Pritisnite 'SHARNI' za konec");

  tft.setCursor(40, 190);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.print("Trenutna vlaga: ");
  tft.setTextColor(rgbTo565(200, 200, 255));
  tft.print(soilMoisturePercent);
  tft.println("%");

  drawMenuButton(50, 220, 120, 40, rgbTo565(255, 100, 100), "SUHO");
  drawMenuButton(190, 220, 120, 40, rgbTo565(100, 100, 255), "MOKRO");
  drawMenuButton(330, 220, 120, 40, rgbTo565(76, 175, 80), "SHARNI");
  drawMenuButton(190, 270, 120, 40, rgbTo565(245, 67, 54), "NAZAJ");

  bool calibrating = true;
  int dryValue = SOIL_DRY_VALUE;
  int wetValue = SOIL_WET_VALUE;
  bool drySet = false;
  bool wetSet = false;

  while (calibrating) {
    tft.fillRect(40, 190, 200, 15, rgbTo565(40, 30, 20));
    tft.setCursor(40, 190);
    tft.setTextColor(rgbTo565(255, 200, 100));
    tft.print("Trenutna vlaga: ");
    tft.setTextColor(rgbTo565(200, 200, 255));
    tft.print(soilMoisturePercent);
    tft.println("%");

    if (drySet) {
      tft.fillRect(50, 205, 120, 15, rgbTo565(40, 30, 20));
      tft.setCursor(50, 205);
      tft.setTextColor(rgbTo565(255, 100, 100));
      tft.print("Suho: ");
      tft.println(dryValue);
    }

    if (wetSet) {
      tft.fillRect(190, 205, 120, 15, rgbTo565(40, 30, 20));
      tft.setCursor(190, 205);
      tft.setTextColor(rgbTo565(100, 100, 255));
      tft.print("Mokro: ");
      tft.println(wetValue);
    }

    if (ts.touched()) {
      TS_Point p = ts.getPoint();
      int x = map(p.x, TS_MINX, TS_MAXX, tft.width(), 0);
      int y = map(p.y, TS_MINY, TS_MAXY, tft.height(), 0);

      if (y > 220 && y < 260) {
        if (x > 50 && x < 170) {
          dryValue = map(soilMoisturePercent, 0, 100, SOIL_DRY_VALUE, SOIL_WET_VALUE);
          drySet = true;
          showTemporaryMessage("Suha vrednost shranjena!", rgbTo565(80, 220, 100), 1000);
        } else if (x > 190 && x < 310) {
          wetValue = map(soilMoisturePercent, 0, 100, SOIL_DRY_VALUE, SOIL_WET_VALUE);
          wetSet = true;
          showTemporaryMessage("Mokra vrednost shranjena!", rgbTo565(80, 220, 100), 1000);
        } else if (x > 330 && x < 450) {
          if (!drySet || !wetSet) {
            showTemporaryMessage("Najprej izmerite obe vrednosti!", rgbTo565(255, 80, 80), 2000);
          } else if (dryValue <= wetValue) {
            showTemporaryMessage("Suha vrednost mora biti visja od mokre!", rgbTo565(255, 80, 80), 2000);
          } else {
            preferences.begin("soil-calib", false);
            preferences.putInt("dryValue", dryValue);
            preferences.putInt("wetValue", wetValue);
            preferences.end();

            SOIL_DRY_VALUE = dryValue;
            SOIL_WET_VALUE = wetValue;

            saveAllSettings();

            showTemporaryMessage("Kalibracija shranjena!", rgbTo565(80, 220, 100), 2000);
            calibrating = false;
          }
        }
      } else if (y > 270 && y < 310 && x > 190 && x < 310) {
        calibrating = false;
      }
    }

    delay(100);
  }

  showSoilMoistureInfo();
}

// ==================== LDR KALIBRACIJSKI ZASLON ====================
void showLDRCalibrationScreen() {
  tft.fillScreen(ST77XX_BLACK);
  drawGradientBackground();
  drawStatusBar();

  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 215, 0));
  tft.setCursor(130, 25);
  tft.println("KALIBRACIJA LDR SENZORJEV");

  // Okvir - zmanjšana višina
  tft.drawRoundRect(10, 40, 460, 210, 10, rgbTo565(255, 215, 0));
  tft.fillRoundRect(11, 41, 458, 208, 10, rgbTo565(30, 30, 50));

  int yOffset = 55;
  int lineHeight = 16;

  // ========== NOTRANJI LDR (Modul 4) ==========
  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(100, 200, 255));
  tft.setCursor(20, yOffset);
  tft.println("NOTRANJI LDR (Vitrina - Modul 4)");

  tft.setCursor(20, yOffset + lineHeight);
  tft.setTextColor(rgbTo565(200, 200, 200));
  tft.print("Trenutna vrednost: ");
  tft.setTextColor(LIGHT_COLOR);
  tft.printf("%d %% (%d lx)", module4LightPercent, (int)ldrInternalLux);

  tft.setCursor(20, yOffset + lineHeight + 10);
  tft.setTextColor(rgbTo565(200, 200, 200));
  tft.print("Kalibracija: 0% = ");
  tft.setTextColor(rgbTo565(100, 200, 100));
  tft.print((int)internalLuxMin);
  tft.print(" lx, 100% = ");
  tft.setTextColor(rgbTo565(255, 150, 100));
  tft.print((int)internalLuxMax);
  tft.println(" lx");

  // Gumbi za notranji LDR
  int btnW = 100;
  int btnH = 26;
  int btnY1 = yOffset + lineHeight + 28;

  drawMenuButton(20, btnY1, btnW, btnH, rgbTo565(80, 80, 100), "TEMNA");
  drawMenuButton(130, btnY1, btnW, btnH, rgbTo565(255, 200, 50), "SVETLA");
  drawMenuButton(240, btnY1, 80, btnH, rgbTo565(76, 175, 80), "RESET");

  // ========== ZUNANJI LDR (Modul 1) ==========
  int yOffset2 = btnY1 + btnH + 20;

  tft.setTextColor(rgbTo565(100, 200, 255));
  tft.setCursor(20, yOffset2);
  tft.println("ZUNANJI LDR (Modul 1)");

  tft.setCursor(20, yOffset2 + lineHeight);
  tft.setTextColor(rgbTo565(200, 200, 200));
  tft.print("Trenutna vrednost: ");
  tft.setTextColor(LIGHT_COLOR);
  if (module1Active) {
    if (externalLux < 10) tft.printf("%.1f lx", externalLux);
    else if (externalLux < 1000) tft.printf("%.0f lx", externalLux);
    else tft.printf("%.1f klx", externalLux / 1000.0);
  } else {
    tft.print("-- lx (modul nedosegljiv)");
  }

  tft.setCursor(20, yOffset2 + lineHeight + 10);
  tft.setTextColor(rgbTo565(200, 200, 200));
  tft.print("Kalibracija: izhod = (vhod + ");
  tft.setTextColor(rgbTo565(100, 200, 100));
  tft.print((int)externalLuxOffset);
  tft.print(") × ");
  tft.setTextColor(rgbTo565(255, 150, 100));
  tft.printf("%.2f", externalLuxScale);

  // Gumbi za zunanji LDR
  int btnY2 = yOffset2 + lineHeight + 28;

  drawMenuButton(20, btnY2, btnW, btnH, rgbTo565(80, 80, 100), "TEMNA");
  drawMenuButton(130, btnY2, btnW, btnH, rgbTo565(255, 200, 50), "SVETLA");
  drawMenuButton(240, btnY2, 80, btnH, rgbTo565(76, 175, 80), "RESET");

  // ========== Spodnji gumbi - premaknjeni višje ==========
  int bottomY = btnY2 + btnH + 15;
  
  drawMenuButton(80, bottomY, 140, 35, rgbTo565(76, 175, 80), "SHRANI");
  drawMenuButton(260, bottomY, 140, 35, rgbTo565(245, 67, 54), "NAZAJ");

  // Prikaz statusa kalibracije - če je aktiven
  if (ldrCalibStep != CALIB_NONE) {
    tft.fillRect(20, bottomY - 12, 440, 15, rgbTo565(30, 30, 50));
    tft.setTextColor(rgbTo565(255, 200, 100));
    tft.setCursor(30, bottomY - 10);
    
    switch(ldrCalibStep) {
      case CALIB_INTERNAL_DARK:
        tft.print("📷 NOTRANJI: Zaprite vitrino (popolna tema) in pritisnite TEMNA");
        break;
      case CALIB_INTERNAL_BRIGHT:
        tft.print("☀️ NOTRANJI: Osvetlite vitrino (največ svetlobe) in pritisnite SVETLA");
        break;
      case CALIB_EXTERNAL_DARK:
        tft.print("🌙 ZUNANJI: Pokrijte zunanji senzor (popolna tema) in pritisnite TEMNA");
        break;
      case CALIB_EXTERNAL_BRIGHT:
        tft.print("☀️ ZUNANJI: Osvetlite zunanji senzor (sonce) in pritisnite SVETLA");
        break;
    }
  }

  currentState = STATE_LDR_CALIBRATION;
}

// ========== FUNKCIJA ZA POSODOBITEV PRETVORBE ==========
void updateLDRConversion() {
  // Notranji LDR: procenti -> luks (Modul 4)
  if (module4Active && module4LightPercent >= 0 && module4LightPercent <= 100) {
    float newLux = internalLuxMin + (module4LightPercent / 100.0) * (internalLuxMax - internalLuxMin);
    if (newLux < 0) newLux = 0;
    if (newLux != ldrInternalLux) {
      ldrInternalLux = newLux;
      Serial.printf("  🔆 Notranji LDR: %d%% → %.0f lx (kalibrirano: min=%.0f, max=%.0f)\n", 
                    module4LightPercent, ldrInternalLux, internalLuxMin, internalLuxMax);
    }
  }
  
  // Zunanji LDR: (surova vrednost + offset) * scale (Modul 1)
  if (module1Active && externalLux > 0) {
    float rawLux = externalLux;
    float calibratedLux = (rawLux + externalLuxOffset) * externalLuxScale;
    if (calibratedLux < 0) calibratedLux = 0;
    
    if (abs(calibratedLux - rawLux) > 1) {  // Če je razlika večja od 1 lx
      externalLux = calibratedLux;
      Serial.printf("  🔆 Zunanji LDR: surovo=%.0f lx → kalibrirano=%.0f lx (offset=%.1f, scale=%.3f)\n", 
                    rawLux, externalLux, externalLuxOffset, externalLuxScale);
    }
  }
}

// ========== FUNKCIJA ZA SHRANJEVANJE LDR KALIBRACIJE ==========
void saveLDRCalibration() {
  preferences.begin("ldr-calib", false);
  preferences.putFloat("intLuxMin", internalLuxMin);
  preferences.putFloat("intLuxMax", internalLuxMax);
  preferences.putFloat("extLuxOff", externalLuxOffset);
  preferences.putFloat("extLuxScale", externalLuxScale);
  preferences.end();
  
  Serial.println("✅ LDR kalibracija shranjena!");
  Serial.printf("  Notranji: 0%%=%d lx, 100%%=%d lx\n", (int)internalLuxMin, (int)internalLuxMax);
  Serial.printf("  Zunanji: offset=%.1f, scale=%.2f\n", externalLuxOffset, externalLuxScale);
  
  showTemporaryMessage("LDR kalibracija shranjena!", rgbTo565(80, 220, 100), 2000);
}

// ========== FUNKCIJA ZA NALAGANJE LDR KALIBRACIJE ==========
void loadLDRCalibration() {
  preferences.begin("ldr-calib", true);
  
  internalLuxMin = preferences.getFloat("intLuxMin", 0.0);
  internalLuxMax = preferences.getFloat("intLuxMax", 20000.0);
  externalLuxOffset = preferences.getFloat("extLuxOff", 0.0);
  externalLuxScale = preferences.getFloat("extLuxScale", 1.0);
  
  preferences.end();
  
  // Preveri veljavnost vrednosti
  if (internalLuxMin < 0) internalLuxMin = 0;
  if (internalLuxMax <= internalLuxMin) internalLuxMax = internalLuxMin + 1000;
  if (externalLuxScale <= 0) externalLuxScale = 1.0;
  
  Serial.println("✅ LDR kalibracija naložena!");
  Serial.printf("  Notranji: 0%%=%d lx, 100%%=%d lx\n", (int)internalLuxMin, (int)internalLuxMax);
  Serial.printf("  Zunanji: offset=%.1f, scale=%.2f\n", externalLuxOffset, externalLuxScale);
  
  updateLDRConversion();
}

// ========== FUNKCIJA ZA RESET LDR KALIBRACIJE ==========
void resetLDRCalibration() {
  internalLuxMin = 0.0;
  internalLuxMax = 20000.0;
  externalLuxOffset = 0.0;
  externalLuxScale = 1.0;
  
  saveLDRCalibration();
  updateLDRConversion();
  
  showTemporaryMessage("LDR kalibracija ponastavljena\nna privzete vrednosti!", rgbTo565(255, 200, 50), 2000);
}

// ========== HANDLER ZA DOTIK NA KALIBRACIJSKEM ZASLONU ==========
void handleLDRCalibrationTouch(int x, int y) {
  if (y < STATUS_BAR_HEIGHT) {
    showWiFiQuickInfo();
    return;
  }

  int btnW = 100;
  int btnH = 26;
  
  // Koordinate za notranji LDR
  int yOffset = 55;
  int lineHeight = 16;
  int internalBtnY = yOffset + lineHeight + 28;
  
  // Koordinate za zunanji LDR
  int externalBtnY = internalBtnY + btnH + 20 + lineHeight + 28;
  
  // Spodnji gumbi - premaknjeni višje
  int bottomY = externalBtnY + btnH + 15;
  int bottomW = 140;
  int bottomH = 35;

  // ===== NOTRANJI LDR GUMBI =====
  if (y > internalBtnY && y < internalBtnY + btnH) {
    
    // Gumb TEMNA za notranji (x=20, width=100)
    if (x > 20 && x < 20 + btnW) {
      if (ldrCalibStep == CALIB_INTERNAL_DARK || ldrCalibStep == CALIB_NONE) {
        calibInternalDarkPercent = module4LightPercent;
        internalLuxMin = 0; // Predpostavimo da je tema 0 lx
        ldrCalibStep = CALIB_NONE;
        showTemporaryMessage("Notranji TEMNA shranjena!\n(0% = 0 lx)", rgbTo565(80, 220, 100), 1500);
        showLDRCalibrationScreen();
      } else {
        showTemporaryMessage("Najprej dokončajte trenutno kalibracijo!", rgbTo565(255, 80, 80), 1500);
      }
      return;
    }
    
    // Gumb SVETLA za notranji (x=130, width=100)
    if (x > 130 && x < 130 + btnW) {
      if (ldrCalibStep == CALIB_INTERNAL_BRIGHT || ldrCalibStep == CALIB_NONE) {
        if (calibInternalDarkPercent > 0) {
          // Izračunamo luks pri 100% glede na znano svetlobo
          showLuxInputPopup(true); // true = notranji LDR
        } else {
          showTemporaryMessage("Najprej shranite TEMNO vrednost!", rgbTo565(255, 150, 50), 1500);
        }
      } else {
        showTemporaryMessage("Najprej dokončajte trenutno kalibracijo!", rgbTo565(255, 80, 80), 1500);
      }
      return;
    }
    
    // Gumb RESET za notranji (x=240, width=80)
    if (x > 240 && x < 240 + 80) {
      internalLuxMin = 0;
      internalLuxMax = 20000;
      showTemporaryMessage("Notranji LDR ponastavljen!", rgbTo565(255, 200, 50), 1500);
      showLDRCalibrationScreen();
      return;
    }
  }

  // ===== ZUNANJI LDR GUMBI =====
  if (y > externalBtnY && y < externalBtnY + btnH) {
    
    // Gumb TEMNA za zunanji (x=20, width=100)
    if (x > 20 && x < 20 + btnW) {
      if (module1Active) {
        calibExternalDarkLux = externalLux;
        externalLuxOffset = -calibExternalDarkLux; // Zamaknemo tako, da tema postane 0
        showTemporaryMessage("Zunanji TEMNA shranjena!\nTema = 0 lx", rgbTo565(80, 220, 100), 1500);
        showLDRCalibrationScreen();
      } else {
        showTemporaryMessage("Modul 1 ni dosegljiv!", rgbTo565(255, 80, 80), 1500);
      }
      return;
    }
    
    // Gumb SVETLA za zunanji (x=130, width=100)
    if (x > 130 && x < 130 + btnW) {
      if (module1Active && calibExternalDarkLux > 0) {
        showLuxInputPopup(false); // false = zunanji LDR
      } else if (!module1Active) {
        showTemporaryMessage("Modul 1 ni dosegljiv!", rgbTo565(255, 80, 80), 1500);
      } else {
        showTemporaryMessage("Najprej shranite TEMNO vrednost!", rgbTo565(255, 150, 50), 1500);
      }
      return;
    }
    
    // Gumb RESET za zunanji (x=240, width=80)
    if (x > 240 && x < 240 + 80) {
      externalLuxOffset = 0;
      externalLuxScale = 1.0;
      showTemporaryMessage("Zunanji LDR ponastavljen!", rgbTo565(255, 200, 50), 1500);
      showLDRCalibrationScreen();
      return;
    }
  }

  // ===== SPODNJI GUMBI =====
  if (y > bottomY && y < bottomY + bottomH) {
    // Gumb SHRANI (x=80, width=140)
    if (x > 80 && x < 80 + bottomW) {
      saveLDRCalibration();
      updateLDRConversion();
      showLDRCalibrationScreen();
      return;
    }
    
    // Gumb NAZAJ (x=260, width=140)
    if (x > 260 && x < 260 + bottomW) {
      showMainMenu();
      return;
    }
  }
}
// ========== POPUP ZA VNOS LUKS VREDNOSTI ==========
void showLuxInputPopup(bool isInternal) {
  tft.fillRect(80, 150, 320, 120, rgbTo565(20, 40, 70));
  tft.drawRect(80, 150, 320, 120, rgbTo565(0, 150, 255));
  
  tft.setTextSize(1);
  tft.setTextColor(rgbTo565(255, 200, 100));
  tft.setCursor(100, 170);
  if (isInternal) {
    tft.println("Vnesite dejansko vrednost svetlobe");
    tft.setCursor(100, 190);
    tft.print("pri 100% (npr. 15000 lx):");
  } else {
    tft.println("Vnesite dejansko vrednost svetlobe");
    tft.setCursor(100, 190);
    tft.print("pri močni svetlobi (npr. 80000 lx):");
  }
  
  // Preprost numerični vnos
  String inputValue = "";
  bool entering = true;
  unsigned long startTime = millis();
  
  // Gumbi za vnos
  int btnW = 35;
  int btnH = 25;
  int numStartX = 100;
  int numStartY = 215;
  
  const char* numbers[] = {"0","1","2","3","4","5","6","7","8","9","⌫","✓"};
  
  while (entering && (millis() - startTime < 30000)) {
    // Nariši gumbe
    for (int i = 0; i < 12; i++) {
      int row = i / 6;
      int col = i % 6;
      int btnX = numStartX + col * (btnW + 5);
      int btnY = numStartY + row * (btnH + 5);
      
      tft.fillRoundRect(btnX, btnY, btnW, btnH, 5, rgbTo565(66, 135, 245));
      tft.drawRoundRect(btnX, btnY, btnW, btnH, 5, ST77XX_WHITE);
      tft.setCursor(btnX + 12, btnY + 8);
      tft.setTextColor(ST77XX_WHITE);
      tft.print(numbers[i]);
    }
    
    // Prikaz vnosa
    tft.fillRect(180, 205, 100, 15, rgbTo565(20, 40, 70));
    tft.setCursor(185, 208);
    tft.setTextColor(rgbTo565(255, 255, 100));
    tft.print(inputValue);
    
    if (ts.touched()) {
      TS_Point p = ts.getPoint();
      int touchX = map(p.x, TS_MINX, TS_MAXX, tft.width(), 0);
      int touchY = map(p.y, TS_MINY, TS_MAXY, tft.height(), 0);
      
      for (int i = 0; i < 12; i++) {
        int row = i / 6;
        int col = i % 6;
        int btnX = numStartX + col * (btnW + 5);
        int btnY = numStartY + row * (btnH + 5);
        
        if (touchX > btnX && touchX < btnX + btnW && touchY > btnY && touchY < btnY + btnH) {
          if (i == 10) { // ⌫
            if (inputValue.length() > 0) {
              inputValue.remove(inputValue.length() - 1);
            }
          } else if (i == 11) { // ✓
            if (inputValue.length() > 0) {
              float luxValue = inputValue.toFloat();
              if (luxValue > 0) {
                if (isInternal) {
                  internalLuxMax = luxValue;
                  showTemporaryMessage("Notranji SVETLA shranjena!\n100% = " + String((int)luxValue) + " lx", rgbTo565(80, 220, 100), 1500);
                } else {
                  // Izračunamo scale faktor: želimo da izmerjena vrednost postane vnesena
                  // Trenutna izmerjena vrednost (po offsetu) je calibExternalBrightLux
                  float measuredAfterOffset = (calibExternalBrightLux + externalLuxOffset);
                  if (measuredAfterOffset > 0) {
                    externalLuxScale = luxValue / measuredAfterOffset;
                  }
                  showTemporaryMessage("Zunanji SVETLA shranjena!\nFaktor: " + String(externalLuxScale, 3), rgbTo565(80, 220, 100), 1500);
                }
                saveLDRCalibration();
                updateLDRConversion();
              }
              entering = false;
            }
          } else {
            inputValue += String(numbers[i]);
            if (inputValue.length() > 6) inputValue = inputValue.substring(0, 6);
          }
          delay(200);
          break;
        }
      }
    }
    delay(50);
  }
  
  showLDRCalibrationScreen();
}

void setup() {
    Serial.begin(115200);
    delay(500);
    
    Serial.println("\n\n=========================================");
    Serial.println("ESP32-S3 ST7796 TFT s Touch - GLAVNI SISTEM");
    Serial.println("=========================================\n");

    diagnoseSDPins();

    Serial.println("Inicializacija zaslona...");
    tft.init(320, 480, 0, 0, ST7796S_BGR);
    tft.setRotation(3);
    tft.invertDisplay(true);
    tft.fillScreen(ST77XX_BLACK);
    showBootScreen();

    Serial.println("Inicializacija touch...");
    touchSPI.begin(T_CLK, T_DO, T_DIN, T_CS);
    delay(100);
    if (!ts.begin(touchSPI)) {
        Serial.println("Napaka pri inicializaciji touch!");
    } else {
        ts.setRotation(3);
        Serial.println("Touch inicializiran!");
    }

    Serial.println("Inicializacija I2C...");
    Wire.begin(MCP_SDA, MCP_SCL);
    Wire.setClock(100000);
    delay(250);
    scanI2CDevices();

    Serial.println("Inicializacija Preferences...");
    preferences.begin("system-settings", false);
    preferences.end();

    initializeTimeBlocks();
    initializeGraphHistory();
    initializeExternalGraphHistory();
    loadGraphHistoryFromFlash();

    initializeMCP23017();
    delay(200);
    initializeRelays();
    initializeRTC();
    delay(200);
    initializeFlowSensors();
    initializeMotor();

    loadAllSettings(true);
    loadPlantCollection();

    loadLDRCalibration();

    if (mcpInitialized) {
        initializeRelays();
    }

    // ==================== INICIALIZACIJA SD KARTICE ====================
    Serial.println("\n=== INICIALIZACIJA SD KARTICE (SAMODEJNO) ===");
    pinMode(SD_CS_PIN, OUTPUT);
    pinMode(SD_SCK_PIN, OUTPUT);
    pinMode(SD_MOSI_PIN, OUTPUT);
    pinMode(SD_MISO_PIN, INPUT_PULLUP);
    digitalWrite(SD_CS_PIN, HIGH);
    delay(50);
    SPI.begin(SD_SCK_PIN, SD_MISO_PIN, SD_MOSI_PIN, SD_CS_PIN);
    SPIClass* sdSPI = new SPIClass(FSPI);
    sdSPI->begin(SD_SCK_PIN, SD_MISO_PIN, SD_MOSI_PIN, SD_CS_PIN);
    digitalWrite(TFT_CS, HIGH);
    delay(10);

    int speeds[] = { 400000, 200000, 100000, 50000 };
    bool sdOk = false;
    for (int s = 0; s < 4; s++) {
        Serial.printf("Poskus %d: %d Hz\n", s + 1, speeds[s]);
        if (SD.begin(SD_CS_PIN, *sdSPI, speeds[s])) {
            uint8_t cardType = SD.cardType();
            if (cardType != CARD_NONE) {
                Serial.println("✓ SD kartica USPESNO inicializirana!");
                uint64_t cardSize = SD.cardSize() / (1024 * 1024);
                Serial.printf("  Velikost: %llu MB\n", cardSize);
                sdInitialized = true;
                useSDCard = true;
                sdOk = true;
                createSDStructure();
                Serial.println("  Nalagam nastavitve s SD kartice...");
                loadSettingsFromSD();
                Serial.println("  Nalagam letni arhiv vlage tal s SD kartice...");
                loadYearArchiveFromSD();
                break;
            }
        }
        delay(100);
    }

    if (sdInitialized && useSDCard) {
        loadAllGraphsFromSD();
    } else {
        loadGraphHistoryFromFlash();
    }

    if (!sdOk) {
        Serial.println("\n❌ SD kartica NI inicializirana!");
        sdInitialized = false;
        useSDCard = false;
        Serial.println("  Nalagam nastavitve iz FLASH pomnilnika...");
        loadAllSettings(true);
        for (int i = 0; i < ARCHIVE_HISTORY_SIZE; i++) {
            yearArchive[i].samples = 0;
        }
        archiveIndex = 0;
        currentDay = 0;
        dailySum = 0;
        dailyMin = 100;
        dailyMax = 0;
        dailyCount = 0;
    }
    digitalWrite(TFT_CS, LOW);
    Serial.println("=== KONEC SD INICIALIZACIJE ===\n");

    Serial.println("Inicializiram 30-dnevno zgodovino za zaslon...");
    for (int i = 0; i < SCREEN_HISTORY_SIZE; i++) {
        screenSoilHistory[i] = 0;
    }
    screenHistoryIndex = 0;
    lastScreenHistoryUpdate = 0;

    // ==================== NASTAVI PRAVILNE MAC NASLOVE (POPRAVLJENI) ====================
    Serial.println("\n=== NASTAVLJAM PRAVILNE MAC NASLOVE MODULOV ===");
    
    // PRAVILNI MAC NASLOVI (pridobljeni iz logov modulov)
    uint8_t fixedModule1MAC[] = {0x80, 0xB5, 0x4E, 0xC6, 0x0A, 0x04};  // Modul 1 - vremenski
    uint8_t fixedModule2MAC[] = {0xB8, 0xF8, 0x62, 0xF8, 0x65, 0xC0};  // Modul 2 - namakalni
    uint8_t fixedModule3MAC[] = {0x58, 0x8C, 0x81, 0xCB, 0xDC, 0x80};  // Modul 3 - senčenje
    uint8_t fixedModule4MAC[] = {0x1A, 0xD8, 0xCB, 0x3F, 0x14, 0xD8};   // Modul 4 - vitrina
    memcpy(module4MAC, fixedModule4MAC, 6);

    memcpy(module1MAC, fixedModule1MAC, 6);
    memcpy(module2MAC, fixedModule2MAC, 6);
    memcpy(module3MAC, fixedModule3MAC, 6);
    memcpy(module4MAC, fixedModule4MAC, 6);
    
    Serial.print("  Modul 1 MAC: ");
    for(int i = 0; i < 6; i++) Serial.printf("%02X%s", module1MAC[i], i<5 ? ":" : "");
    Serial.println();
    
    Serial.print("  Modul 2 MAC: ");
    for(int i = 0; i < 6; i++) Serial.printf("%02X%s", module2MAC[i], i<5 ? ":" : "");
    Serial.println();
    
    Serial.print("  Modul 3 MAC: ");
    for(int i = 0; i < 6; i++) Serial.printf("%02X%s", module3MAC[i], i<5 ? ":" : "");
    Serial.println();
    
    Serial.print("  Modul 4 MAC: ");
    for(int i = 0; i < 6; i++) Serial.printf("%02X%s", module4MAC[i], i<5 ? ":" : "");
    Serial.println();
    
    Serial.println("================================================\n");

    // ==================== POMEMBNO: NAJPREJ PRAVILNO INICIALIZIRAJ WIFI ====================
    Serial.println("\n=== INICIALIZACIJA WIFI (OBVEZNO PRED ESP-NOW) ===");
    
    // 1. Počisti stare nastavitve
    WiFi.disconnect(true);
    delay(100);
    
    // 2. Nastavi način na STA
    WiFi.mode(WIFI_STA);
    delay(100);
    
    // 3. Počakaj, da se WiFi inicializira
    delay(500);
    
    // 4. Preveri, ali je WiFi pravilno inicializiran
    Serial.printf("  MAC naslov ESP32: %s\n", WiFi.macAddress().c_str());
    
    if (WiFi.macAddress() == "00:00:00:00:00:00") {
        Serial.println("  ⚠️ WiFi ni pravilno inicializiran! Poskusim znova...");
        WiFi.mode(WIFI_AP_STA);
        delay(100);
        WiFi.mode(WIFI_STA);
        delay(500);
        Serial.printf("  Nov MAC naslov: %s\n", WiFi.macAddress().c_str());
    }
    
    // 5. Nastavi kanal na 1
    esp_wifi_set_promiscuous(true);
    esp_wifi_set_channel(1, WIFI_SECOND_CHAN_NONE);
    esp_wifi_set_promiscuous(false);
    Serial.println("  📡 Kanal nastavljen na 1");
    
    // 6. Dodaj omrežja za povezavo
    setupWiFi();
    
    // 7. Poskusi povezavo
    autoConnectToWiFi();
    
    // 8. Še enkrat preveri MAC naslov
    Serial.printf("  Končni MAC naslov: %s\n", WiFi.macAddress().c_str());
    Serial.printf("  WiFi status: %d\n", WiFi.status());
    Serial.printf("  WiFi kanal: %d\n", WiFi.channel());
    
    // ==================== INICIALIZACIJA ESP-NOW ====================
    Serial.println("\n=== INICIALIZACIJA ESP-NOW ===");
    
    // Počakaj, da se WiFi stabilizira
    delay(500);
    
    if (esp_now_init() != ESP_OK) {
        Serial.println("  ❌ ESP-NOW napaka pri inicializaciji!");
        // Poskusi ponovno
        delay(500);
        if (esp_now_init() != ESP_OK) {
            Serial.println("  ❌ ESP-NOW ponovna inicializacija prav tako ni uspela!");
        } else {
            Serial.println("  ✅ ESP-NOW inicializiran (poskus 2)!");
        }
    } else {
        Serial.println("  ✅ ESP-NOW inicializiran!");
    }
    
    // Registriraj callback za prejemanje
    esp_now_register_recv_cb(esp_now_recv_cb_t(onModuleDataRecv));
    
    // Dodaj peerje
    esp_now_peer_info_t peerInfo;
    
    // Modul 1
    memset(&peerInfo, 0, sizeof(peerInfo));
    memcpy(peerInfo.peer_addr, module1MAC, 6);
    peerInfo.channel = 1;
    peerInfo.encrypt = false;
    peerInfo.ifidx = WIFI_IF_STA;
    if (esp_now_add_peer(&peerInfo) == ESP_OK) {
        Serial.printf("  ✅ Peer za modul 1 dodan\n");
    }
    
    // Modul 2
    memset(&peerInfo, 0, sizeof(peerInfo));
    memcpy(peerInfo.peer_addr, module2MAC, 6);
    peerInfo.channel = 1;
    peerInfo.encrypt = false;
    peerInfo.ifidx = WIFI_IF_STA;
    esp_now_add_peer(&peerInfo);
    
    // Modul 3
    memset(&peerInfo, 0, sizeof(peerInfo));
    memcpy(peerInfo.peer_addr, module3MAC, 6);
    peerInfo.channel = 1;
    peerInfo.encrypt = false;
    peerInfo.ifidx = WIFI_IF_STA;
    esp_now_add_peer(&peerInfo);
    
    // Modul 4
    memset(&peerInfo, 0, sizeof(peerInfo));
    memcpy(peerInfo.peer_addr, module4MAC, 6);
    peerInfo.channel = 1;
    peerInfo.encrypt = false;
    peerInfo.ifidx = WIFI_IF_STA;
    esp_now_add_peer(&peerInfo);
    
    Serial.println("=== KONEC INICIALIZACIJE ESP-NOW ===\n");
    
    // ==================== TESTNI UKAZ ZA MODUL 3 ====================
    delay(1000);
    Serial.println("\n=== POŠILJAM TESTNI UKAZ MODULU 3 ===");
    sendShadeCommand(CMD_STOP, 0, 0);
    delay(500);
    sendShadeCommand(CMD_MOVE_TO_POSITION, 50, 0);
    delay(500);
    sendShadeCommand(CMD_MOVE_TO_POSITION, 0, 0);
    Serial.println("=== KONEC TESTNIH UKAZOV ===\n");

    checkWiFiChannel();

    // ==================== ZAKLJUČEK SETUP ====================
    homeScreenBackgroundDrawn = false;
    homeScreenStaticElementsDrawn = false;
    showHomeScreen();

    Serial.println("\n=========================================");
    Serial.println("=== SETUP ZAKLJUCEN - SISTEM DELUJE ===");
    Serial.println("=========================================\n");
    
    Serial.println("=== TRENUTNO STANJE MODULOV ===");
    Serial.printf("Modul 1: %s\n", module1Active ? "AKTIVEN" : "NEAKTIVEN");
    Serial.printf("Modul 2: %s\n", module2Active ? "AKTIVEN" : "NEAKTIVEN");
    Serial.printf("Modul 3: %s\n", module3Active ? "AKTIVEN" : "NEAKTIVEN");
    Serial.printf("Modul 4: %s\n", module4Active ? "AKTIVEN" : "NEAKTIVEN");
    Serial.println("===============================\n");
}

void loop() {
    unsigned long now = millis();
    
    handleTouch();
    
    static unsigned long lastDataUpdate = 0;
    if (now - lastDataUpdate > 500) {
        updateFlowSensors();
        updateRTC();
        updateMCP23017();
        lastDataUpdate = now;
    }

    static unsigned long lastDSTCheck = 0;
    if (now - lastDSTCheck > 60000) {
        checkDaylightSavingTime();
        lastDSTCheck = now;
    }

    static unsigned long lastControlUpdate = 0;
    if (now - lastControlUpdate > 2000) {
        if (!isnan(internalTemperature) && !isnan(internalHumidity)) {
            autoControlRelays();
        }
        updateVentilationControl();
        lastControlUpdate = now;
    }
    
    static unsigned long lastShadeAuto = 0;
    if (now - lastShadeAuto > 2000) {
        autoControlShade();
        lastShadeAuto = now;
    }
    
    static unsigned long lastLightingCheck = 0;
    if (now - lastLightingCheck > 1000) {
        if (lightingAutoMode && !lightingManualOverride) {
            bool shouldBeOn = shouldRelaysBeOn();
            if (shouldBeOn != relayStates[LIGHTING_RELAY_1]) {
                setRelay(LIGHTING_RELAY_1, shouldBeOn);
                Serial.printf("⏰ Časovna razsvetljava (rele 4): %s\n", shouldBeOn ? "VKLOP" : "IZKLOP");
            }
        }
        lastLightingCheck = now;
    }
    
    static unsigned long lastAutoLightCheck = 0;
    if (now - lastAutoLightCheck > 1000) {
        checkAndControlLighting();
        lastAutoLightCheck = now;
    }
    
    static unsigned long lastHistoryUpdate = 0;
    if (now - lastHistoryUpdate > 1800000) {
        updateGraphHistory();
        updateExternalGraphHistory();
        updateTrendHistory();
        calculateTrends();
        lastHistoryUpdate = now;
    }
    
    static unsigned long lastStatusCheck = 0;
    if (now - lastStatusCheck > 5000) {
        checkWiFiStatus();
        checkModulesTimeout();
        checkWarnings();
        lastStatusCheck = now;
    }
    
    static unsigned long lastSaveCheck = 0;
    if (now - lastSaveCheck > 5000) {
        autoSaveSettings();
        lastSaveCheck = now;
    }
    
    if (currentState == STATE_HOME_SCREEN) {
        static unsigned long lastHomeScreenUpdate = 0;
        if (now - lastHomeScreenUpdate > 1000) {
            updateHomeScreenDynamicValues();
            lastHomeScreenUpdate = now;
        }
    }
    
    static unsigned long lastStatusDraw = 0;
    if (now - lastStatusDraw > 2000) {
        drawStatusBar();
        lastStatusDraw = now;
    }
    
    if (plantCount > 0) {
        static unsigned long lastPlantControl = 0;
        if (now - lastPlantControl > 10000) {
            controlVPDForPlants();
            updateAirMovement();
            checkMistingTimeout();
            lastPlantControl = now;
        }
    }
    
    static unsigned long lastGraphSave = 0;
    if (now - lastGraphSave > 3600000) {
        if (sdInitialized && useSDCard) {
            saveAllGraphsToSD();
        }
        lastGraphSave = now;
    }

    static unsigned long lastNTPSyncCheck = 0;
    if (wifiConnected && (now - lastNTPSyncCheck > 3600000)) {
        syncTimeWithNTP();
        lastNTPSyncCheck = now;
    }
    
    delay(10);
}
// Galavna ESP