body {
      background-color: #f9f9f9;
      font-family: 'Segoe UI', sans-serif;
    }
    .gallery-container {
      max-width: 1200px;
      margin: 40px auto;
    }
    .gallery-title {
      text-align: center;
      margin-bottom: 30px;
      font-weight: bold;
      color: #004aad;
    }
    .gallery-img {
      width: 100%;
      height: 250px;       /* fixed height */
      object-fit: cover;   /* crop portrait/landscape evenly */
      border-radius: 10px;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      cursor: pointer;
    }
    .gallery-img:hover {
      transform: scale(1.05);
      box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    }
    .pagination {
      justify-content: center;
      margin-top: 20px;
      flex-wrap: wrap;
    }
    .lightbox-controls {
      position: absolute;
      top: 50%;
      width: 100%;
      display: flex;
      justify-content: space-between;
      transform: translateY(-50%);
      padding: 0 20px;
    }
    .lightbox-controls button {
      background: rgba(0,0,0,0.5);
      border: none;
      color: white;
      font-size: 2rem;
      padding: 10px 20px;
      border-radius: 50%;
      cursor: pointer;
    }
    .lightbox-controls button:hover {
      background: rgba(0,0,0,0.8);
    }