.file-toolbar{padding:8px 12px;border-bottom:1px solid var(--border-color);display:flex;flex-direction:column;gap:8px}.search-box{display:flex;align-items:center;background-color:var(--bg-tertiary);border-radius:var(--border-radius);padding:6px 10px;gap:8px}.search-icon{width:14px;height:14px;stroke:var(--text-muted);stroke-width:2;fill:none;flex-shrink:0}.search-input{flex:1;border:none;background:0 0;font-size:12px;color:var(--text-primary);outline:0;min-width:0}.search-input::placeholder{color:var(--text-muted)}.filter-toggle{display:flex;background-color:var(--bg-tertiary);border-radius:var(--border-radius);padding:2px}.filter-btn{flex:1;padding:4px 8px;font-size:11px;font-weight:500;border:none;background:0 0;color:var(--text-secondary);cursor:pointer;border-radius:4px;transition:all var(--transition-fast)}.filter-btn:hover{color:var(--text-primary)}.filter-btn.active{background-color:var(--bg-primary);color:var(--color-primary);box-shadow:var(--shadow-sm)}.folder-breadcrumb{display:flex;align-items:center;gap:6px;padding:8px 12px;background-color:var(--bg-tertiary);border-bottom:1px solid var(--border-color);font-size:12px;color:var(--text-secondary)}.folder-breadcrumb .icon{width:14px;height:14px;stroke:var(--color-primary);stroke-width:2;fill:none}.folder-name{font-weight:500;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-tree{padding:4px 0}.tree-item{user-select:none}.tree-folder{cursor:pointer}.tree-folder-header{display:flex;align-items:center;padding:6px 12px;gap:6px;cursor:pointer;transition:background-color var(--transition-fast)}.tree-folder-header:hover{background-color:var(--bg-tertiary)}.tree-folder-toggle{width:16px;height:16px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.tree-folder-toggle .icon{width:12px;height:12px;stroke:var(--text-muted);stroke-width:2;fill:none;transition:transform var(--transition-fast)}.tree-folder.expanded>.tree-folder-header .tree-folder-toggle .icon{transform:rotate(90deg)}.tree-folder-icon{width:16px;height:16px;stroke:var(--color-warning);stroke-width:2;fill:none;flex-shrink:0}.tree-folder-name{flex:1;font-size:13px;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tree-folder-count{font-size:11px;color:var(--text-muted);background-color:var(--bg-tertiary);padding:1px 6px;border-radius:10px}.tree-folder-children{display:none;padding-left:16px}.tree-folder.expanded>.tree-folder-children{display:block}.tree-file{display:flex;align-items:center;padding:6px 12px 6px 34px;gap:8px;cursor:pointer;transition:background-color var(--transition-fast)}.tree-file:hover{background-color:var(--bg-tertiary)}.tree-file.active{background-color:var(--color-primary-light)}.tree-file-icon{width:16px;height:16px;stroke:var(--color-primary);stroke-width:2;fill:none;flex-shrink:0}.tree-file-name{flex:1;font-size:13px;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tree-file-modified{width:8px;height:8px;border-radius:50%;background-color:var(--color-warning);flex-shrink:0}.tree-folder-modified{width:8px;height:8px;border-radius:50%;background-color:var(--color-warning);flex-shrink:0;margin-left:6px}.tree-file.new-file .tree-file-name{color:#22c55e;font-style:italic}.tree-file.new-file .tree-file-icon{stroke:#22c55e}.file-item.hidden,.tree-file.hidden,.tree-folder.hidden{display:none}.file-list{list-style:none}.file-item{display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:var(--border-radius);cursor:pointer;transition:background-color var(--transition-fast)}.file-item:hover{background-color:var(--bg-tertiary)}.file-item.active{background-color:var(--color-primary-light);color:var(--color-primary)}.file-item .file-icon{width:18px;height:18px;stroke:currentColor;stroke-width:2;fill:none}.file-item .file-name{flex:1;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-item .file-modified{width:8px;height:8px;border-radius:50%;background-color:var(--color-warning)}.file-item .btn-close-file{padding:4px;opacity:0;transition:opacity var(--transition-fast)}.file-item:hover .btn-close-file{opacity:1}.folder-reconnect-banner{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 16px;text-align:center;gap:8px}.folder-reconnect-banner .reconnect-icon{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;background-color:var(--color-warning-light,rgba(234,179,8,.12));color:var(--color-warning);margin-bottom:4px}.folder-reconnect-banner .reconnect-icon svg{width:22px;height:22px}.folder-reconnect-banner .reconnect-message{font-size:13px;font-weight:500;color:var(--text-primary);margin:0}.folder-reconnect-banner .reconnect-hint{font-size:12px;color:var(--text-muted);margin:0 0 4px;line-height:1.4}.folder-reconnect-banner .reconnect-btn{display:inline-flex;align-items:center;gap:6px;margin-top:4px;padding:6px 16px;font-size:12px;font-weight:500}.folder-reconnect-banner .reconnect-btn .icon{width:14px;height:14px;stroke:currentColor;stroke-width:2;fill:none}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 16px;text-align:center;color:var(--text-secondary)}.empty-icon{width:48px;height:48px;stroke:var(--border-color-dark);stroke-width:1.5;fill:none;margin-bottom:12px}.empty-icon.large{width:64px;height:64px}.empty-state p{font-size:13px}.empty-state .hint{font-size:12px;color:var(--text-muted);margin-top:4px}