#include <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>

#define TFT_CS   15
#define TFT_DC   2
#define TFT_RST  -1
#define TFT_BL   21

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);

void setup() {
  pinMode(TFT_BL, OUTPUT);
  digitalWrite(TFT_BL, HIGH);
  tft.begin();
  tft.fillScreen(ILI9341_BLACK);

  // Rainbow gradient background
  for (int y = 0; y < tft.height(); y++) {
    uint16_t color = tft.color565(
      (y * 255) / tft.height(),          // Red gradient
      (255 - (y * 255) / tft.height()),  // Green gradient
      (y * 128) / tft.height()           // Blue gradient
    );
    tft.drawFastHLine(0, y, tft.width(), color);
  }

  // Motivational caption overlay
  tft.setCursor(20, 140);
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.println("Code by Arvind");

  tft.setCursor(20, 170);
  tft.setTextColor(ILI9341_YELLOW);
  tft.setTextSize(2);
  tft.println("AI Centre Nandurbar");
}

void loop() {
  // Nothing here – static demo
}