.gallery-item {
      cursor: pointer;
      transition: transform 0.2s;
    }
    .gallery-item:hover {
      transform: scale(1.05);
    }
    .modal-content {
      background: transparent;
      border: none;
    }
    .modal-body {
      position: relative;
    }
    .nav-btn {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      background: rgba(0,0,0,0.5);
      border: none;
      color: white;
      padding: 10px 15px;
      font-size: 24px;
      cursor: pointer;
    }
    .nav-btn:hover {
      background: rgba(0,0,0,0.8);
    }
    .prev-btn { left: 10px; }
    .next-btn { right: 10px; }