/* Page thumbnail grid */
    .page-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
      gap: 16px;
      margin-top: 20px;
      padding: 0;
      min-height: 100px;
    }

    .page-card {
      position: relative;
      background: var(--color-surface);
      border: 2px solid var(--color-border-light);
      border-radius: var(--radius-sm);
      padding: 8px;
      cursor: grab;
      user-select: none;
      transition: border-color 0.2s ease, opacity 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .page-card:hover {
      border-color: var(--color-primary-subtle);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    }

    .page-card:active {
      cursor: grabbing;
    }

    .page-card.dragging {
      opacity: 0.4;
      border-color: var(--color-primary);
      transform: scale(0.95);
    }

    .page-card.drag-over {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px var(--color-primary-light);
    }

    .page-card.drag-insert-before::before {
      content: '';
      position: absolute;
      left: -10px;
      top: 0;
      bottom: 0;
      width: 3px;
      background: var(--color-primary);
      border-radius: 2px;
    }

    .page-card.drag-insert-after::after {
      content: '';
      position: absolute;
      right: -10px;
      top: 0;
      bottom: 0;
      width: 3px;
      background: var(--color-primary);
      border-radius: 2px;
    }

    .page-card .thumb-wrap {
      width: 100%;
      aspect-ratio: 0.77;
      overflow: hidden;
      border-radius: 4px;
      background: #f8f9fa;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--color-border-light);
    }

    .page-card .thumb-wrap canvas {
      max-width: 100%;
      max-height: 100%;
      display: block;
    }

    .page-card .page-label {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      margin-top: 8px;
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--color-text-secondary);
    }

    .page-card .page-number {
      background: var(--color-bg);
      border: 1px solid var(--color-border-light);
      border-radius: 4px;
      padding: 2px 8px;
      font-family: var(--font-mono);
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--color-text);
    }

    .page-card .original-badge {
      font-size: 0.65rem;
      color: var(--color-text-muted);
      font-weight: 400;
    }

    .page-card .reordered-badge {
      font-size: 0.65rem;
      color: var(--color-primary);
      font-weight: 600;
    }

    /* Move buttons on each card */
    .page-card .move-btns {
      display: flex;
      gap: 2px;
      margin-top: 6px;
      opacity: 0;
      transition: opacity 0.15s ease;
    }

    .page-card:hover .move-btns {
      opacity: 1;
    }

    .move-btn {
      background: var(--color-bg);
      border: 1px solid var(--color-border-light);
      border-radius: 4px;
      width: 26px;
      height: 26px;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--color-text-muted);
      font-size: 0.7rem;
      padding: 0;
      transition: all 0.15s ease;
    }

    .move-btn:hover {
      background: var(--color-primary-light);
      color: var(--color-primary);
      border-color: var(--color-primary-subtle);
    }

    .move-btn svg {
      width: 12px;
      height: 12px;
    }

    /* Toolbar above the grid */
    .grid-toolbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 16px;
    }

    .grid-toolbar-left {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
    }

    .grid-toolbar-right {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }

    .page-count-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      background: var(--color-primary-light);
      color: var(--color-primary);
      border-radius: 100px;
      font-size: 0.8rem;
      font-weight: 600;
    }

    .order-status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: 100px;
      font-size: 0.78rem;
      font-weight: 600;
    }

    .order-status.original {
      background: var(--color-bg);
      color: var(--color-text-muted);
      border: 1px solid var(--color-border-light);
    }

    .order-status.modified {
      background: #fff3cd;
      color: #856404;
      border: 1px solid #ffc107;
    }

    .toolbar-btn {
      padding: 7px 14px;
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: var(--font-body);
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--color-text-secondary);
      cursor: pointer;
      transition: all 0.15s ease;
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }

    .toolbar-btn:hover {
      border-color: var(--color-primary-subtle);
      background: var(--color-primary-light);
      color: var(--color-primary);
    }

    /* Progress indicator */
    .progress-bar-wrap {
      width: 100%;
      height: 6px;
      background: var(--color-border);
      border-radius: 3px;
      margin-top: 16px;
      overflow: hidden;
      display: none;
    }

    .progress-bar-wrap.visible {
      display: block;
    }

    .progress-bar-fill {
      height: 100%;
      background: var(--color-primary);
      border-radius: 3px;
      transition: width 0.3s ease;
      width: 0%;
    }

    .progress-label {
      font-size: 0.8rem;
      color: var(--color-text-muted);
      margin-top: 8px;
      text-align: center;
      display: none;
    }

    .progress-label.visible {
      display: block;
    }

    /* Loading state for thumbnails */
    .thumb-loading {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 100%;
      height: 100%;
      color: var(--color-text-muted);
      font-size: 0.75rem;
    }

    .thumb-loading .spinner {
      width: 24px;
      height: 24px;
      border: 3px solid var(--color-border);
      border-top-color: var(--color-primary);
      border-radius: 50%;
      animation: spin 0.8s linear infinite;
    }

    @keyframes spin {
      to { transform: rotate(360deg); }
    }

    /* Action buttons row */
    .action-row {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 20px;
      flex-wrap: wrap;
    }

    @media (max-width: 768px) {
      .page-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 10px;
      }

      .grid-toolbar {
        flex-direction: column;
        align-items: flex-start;
      }

      .grid-toolbar-right {
        width: 100%;
      }

      .page-card .move-btns {
        opacity: 1;
      }
    }

    @media (max-width: 480px) {
      .page-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
      }
    }