.merge-tool{width:100%}.drop-zone{text-align:center;border-radius:var(--radius);background:#fafafa;border:2px dashed #ccc;flex-direction:column;align-items:center;gap:.75rem;padding:2.5rem 1.5rem;transition:border-color .15s,background .15s;display:flex}.drop-zone.drag-over{background:#f0f0f0;border-color:#666}.drop-zone p{margin:0}.drop-zone-hint{color:#666;font-size:.85rem}.file-list{flex-direction:column;gap:.5rem;margin:1.5rem 0 0;padding:0;list-style:none;display:flex}.file-item{border-radius:var(--radius);cursor:grab;background:#fff;border:1px solid #ddd;align-items:center;gap:.75rem;padding:.6rem .75rem;display:flex}.file-item.dragging{opacity:.5}.file-index{text-align:center;color:#999;flex-shrink:0;width:1.5rem;font-size:.85rem}.file-thumb{background:#f5f5f5;border:1px solid #ddd;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:52px;display:flex;overflow:hidden}.file-thumb img{object-fit:cover;width:100%;height:100%}.file-meta{flex:1;min-width:0}.file-name{white-space:nowrap;text-overflow:ellipsis;font-weight:600;display:block;overflow:hidden}.file-details{color:#666;font-size:.85rem;display:block}.file-remove{font:inherit;color:#c62828;border-radius:var(--radius);cursor:pointer;background:#fff;border:1px solid #ef9a9a;flex-shrink:0;padding:.35rem .6rem;font-size:.85rem}.file-remove:hover{background:#ffebee}.file-error{background:#fff5f5;border-color:#ef9a9a}.file-error .file-details{color:#c62828}.merge-summary{color:#666;margin-top:1rem;font-size:.9rem}.merge-actions{flex-wrap:wrap;gap:.75rem;margin-top:1.25rem;display:flex}.merge-actions button{font:inherit;border-radius:var(--radius);cursor:pointer;padding:.7rem 1.2rem}.merge-actions button:disabled{opacity:.5;cursor:not-allowed}.merge-status{min-height:1.5rem;margin-top:1rem;font-size:.9rem}.merge-status.error{color:#c62828}.merge-status.success{color:#2e7d32}@media (width<=600px){.merge-actions{flex-direction:column}.merge-actions button{width:100%}}