.thumbnail-gallery {
        width: 100%;
        margin: 20px 0;
        padding: 15px;
        background-color: var(--input-bg);
        border: 1px solid var(--input-border);
        border-radius: 8px;
      }
      
      .gallery-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 15px;
      }
      
      .gallery-header h3 {
        margin: 0;
        color: var(--text-color);
      }
      
      .gallery-controls {
        display: flex;
        align-items: center;
        gap: 10px;
      }
      
      .gallery-nav-btn {
        background-color: var(--button-bg);
        color: var(--button-text);
        border: none;
        border-radius: 4px;
        padding: 5px 10px;
        cursor: pointer;
        font-size: 14px;
        transition: background-color 0.3s;
      }
      
      .gallery-nav-btn:hover:not(:disabled) {
        background-color: var(--button-hover);
      }
      
      .gallery-nav-btn:disabled {
        opacity: 0.5;
        cursor: not-allowed;
      }
      
      #galleryPagination {
        font-size: 14px;
        color: var(--text-color);
      }
      
      .thumbnails-container {
        display: flex;
        overflow-x: auto;
        gap: 15px;
        padding: 10px 0;
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
      }
      
      .thumbnail-item {
        flex: 0 0 auto;
        width: 150px;
        border: 2px solid transparent;
        border-radius: 6px;
        overflow: hidden;
        cursor: pointer;
        transition: border-color 0.3s, transform 0.2s;
        position: relative;
      }
      
      .thumbnail-item:hover {
        border-color: var(--button-bg);
        transform: translateY(-3px);
      }
      
      .thumbnail-item.selected {
        border-color: var(--button-bg);
      }
      
      .thumbnail-img {
        width: 100%;
        height: 150px;
        object-fit: cover;
        display: block;
      }
      
      .gallery-loading {
        text-align: center;
        padding: 20px;
        color: var(--text-color);
      }
      
      .empty-gallery {
        text-align: center;
        padding: 30px;
        color: var(--text-color);
        font-style: italic;
      }
      
      @media (max-width: 600px) {
        .thumbnail-item {
          width: 120px;
        }
        
        .thumbnail-img {
          height: 120px;
        }
      }