<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <title>Futuristic Image Editor</title>
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <style>
    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: 'Segoe UI', sans-serif;
      background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
      color: #fff;
      display: flex;
      justify-content: center;
      padding: 40px 20px;
    }

    .container {
      width: 100%;
      max-width: 1100px;
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(12px);
      border-radius: 16px;
      padding: 30px;
      box-shadow: 0 8px 30px rgba(0,0,0,0.3);
    }

    h1 {
      text-align: center;
      color: #7cf4ff;
      margin-bottom: 30px;
      font-size: 28px;
    }

    input[type="file"] {
      display: none;
    }

    .upload-section {
      text-align: center;
    }

    .upload-label {
      background: #111;
      color: #0ff;
      padding: 12px 30px;
      font-size: 16px;
      border: 2px solid #0ff;
      border-radius: 10px;
      cursor: pointer;
      display: inline-block;
      margin-bottom: 20px;
      transition: all 0.3s;
    }

    .upload-label:hover {
      background: #0ff;
      color: #000;
    }

    canvas {
      width: 100%;
      max-height: 600px;
      border-radius: 12px;
      background-color: #1a1a1a;
      margin-top: 20px;
    }

    .controls {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-top: 30px;
      justify-content: center;
    }

    .controls label {
      display: flex;
      flex-direction: column;
      align-items: center;
      font-size: 13px;
    }

    .controls input[type="range"] {
      width: 120px;
      margin-top: 5px;
    }

    .button-group {
      margin-top: 30px;
      text-align: center;
    }

    .btn {
      background: #222;
      color: #0ff;
      padding: 12px 22px;
      border: 1px solid #0ff;
      border-radius: 8px;
      margin: 5px;
      font-size: 15px;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .btn:hover {
      background-color: #0ff;
      color: #000;
    }

    .color-picker {
      width: 40px;
      height: 40px;
      border: none;
      cursor: pointer;
      border-radius: 50%;
    }

    @media(max-width: 600px) {
      .controls {
        flex-direction: column;
        align-items: center;
      }
    }
  </style>
</head>
<body>
  <div class="container">
    <h1>🚀 Futuristic Image Editor</h1>

    <div class="upload-section">
      <label for="imageInput" class="upload-label">Upload Image</label>
      <input type="file" id="imageInput" accept="image/*" />
    </div>

    <canvas id="canvas"></canvas>

    <div class="controls">
      <label>Blur <input type="range" id="blur" min="0" max="10" step="0.5" value="0" /></label>
      <label>Brightness <input type="range" id="brightness" min="0.5" max="2" step="0.1" value="1" /></label>
      <label>Contrast <input type="range" id="contrast" min="0.5" max="2" step="0.1" value="1" /></label>
      <label>Grayscale <input type="range" id="grayscale" min="0" max="1" step="0.1" value="0" /></label>
      <label>Background Color <input type="color" class="color-picker" id="bgColor" value="#000000" /></label>
    </div>

    <div class="button-group">
      <button class="btn" onclick="removeBackground()">🧼 Remove Background</button>
      <button class="btn" onclick="applyEnhancement()">🛠️ Enhance</button>
      <button class="btn" onclick="reset()">♻️ Reset</button>
      <button class="btn" onclick="download()">📥 Download</button>
    </div>
  </div>

  <script>
    const canvas = document.getElementById("canvas");
    const ctx = canvas.getContext("2d");
    const imageInput = document.getElementById("imageInput");

    const filters = {
      blur: 0,
      brightness: 1,
      contrast: 1,
      grayscale: 0,
    };

    let originalImg = null;

    imageInput.addEventListener("change", (e) => {
      const file = e.target.files[0];
      if (!file) return;
      const reader = new FileReader();
      reader.onload = (event) => {
        const img = new Image();
        img.onload = () => {
          canvas.width = img.width;
          canvas.height = img.height;
          ctx.drawImage(img, 0, 0);
          originalImg = ctx.getImageData(0, 0, canvas.width, canvas.height);
        };
        img.src = event.target.result;
      };
      reader.readAsDataURL(file);
    });

    function updateFilters() {
      const { blur, brightness, contrast, grayscale } = filters;
      ctx.filter = `blur(${blur}px) brightness(${brightness}) contrast(${contrast}) grayscale(${grayscale})`;
      ctx.drawImage(canvas, 0, 0);
    }

    document.querySelectorAll('input[type="range"]').forEach((input) => {
      input.addEventListener("input", (e) => {
        filters[e.target.id] = parseFloat(e.target.value);
        reset(); // re-apply
        updateFilters();
      });
    });

    document.getElementById("bgColor").addEventListener("input", (e) => {
      const color = e.target.value;
      ctx.globalCompositeOperation = "destination-over";
      ctx.fillStyle = color;
      ctx.fillRect(0, 0, canvas.width, canvas.height);
      ctx.globalCompositeOperation = "source-over";
    });

    function removeBackground() {
      if (!originalImg) return;
      const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
      const data = imageData.data;

      for (let i = 0; i < data.length; i += 4) {
        const r = data[i], g = data[i + 1], b = data[i + 2];
        const brightness = (r + g + b) / 3;

        if (brightness > 200 && Math.abs(r - g) < 15 && Math.abs(r - b) < 15) {
          data[i + 3] = 0; // transparent
        }
      }

      ctx.putImageData(imageData, 0, 0);
    }

    function applyEnhancement() {
      const scale = 1.25;
      const temp = document.createElement("canvas");
      const tempCtx = temp.getContext("2d");
      temp.width = canvas.width * scale;
      temp.height = canvas.height * scale;
      tempCtx.drawImage(canvas, 0, 0, temp.width, temp.height);

      canvas.width = temp.width;
      canvas.height = temp.height;
      ctx.drawImage(temp, 0, 0);
    }

    function reset() {
      if (!originalImg) return;
      canvas.width = originalImg.width;
      canvas.height = originalImg.height;
      ctx.putImageData(originalImg, 0, 0);
    }

    function download() {
      const link = document.createElement("a");
      link.download = "enhanced-image.png";
      link.href = canvas.toDataURL();
      link.click();
    }
  </script>
</body>
</html>
