.pdf-list { display: flex; flex-direction: column; gap: 8px; margin-top: 16px; }
    .pdf-item { display: flex; align-items: center; gap: 10px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 10px; padding: 10px 14px; }
    .pdf-item-icon { font-size: 20px; flex-shrink: 0; }
    .pdf-item-name { flex: 1; font-size: 13px; color: #e0e0e0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .pdf-item-size { font-size: 12px; color: #9ca3af; flex-shrink: 0; }
    .pdf-item-del { background: none; border: none; cursor: pointer; color: #6b7280; font-size: 16px; padding: 2px 4px; line-height: 1; transition: color 0.15s; }
    .pdf-item-del:hover { color: #f87171; }
    .pdf-item-move { background: none; border: none; cursor: grab; color: #6b7280; font-size: 14px; padding: 2px 4px; line-height: 1; }
    .pdf-empty { text-align: center; padding: 20px; color: #6b7280; font-size: 13px; }
    .merge-progress { margin-top: 16px; }