main {
      padding: 20px;
      max-width: 1200px;
      margin: auto;
    }

    /* Grid gallery */
    .gallery {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
      gap: 15px;
      margin-top: 20px;
    }

    .gallery img {
      width: 100%;
      height: 400px;
      object-fit: cover;
      border-radius: 10px;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .gallery img:hover {
      transform: scale(1.05);
      box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    }

    /* Lightbox */
    .lightbox {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0,0,0,0.85);
      display: none;
      justify-content: center;
      align-items: center;
      z-index: 1000;
    }

    .lightbox img {
      max-width: 90%;
      max-height: 90%;
      border-radius: 10px;
    }