/* 文件夹选择器样式 */

/* 弹窗滚动优化 */
.copy-doc-container {
    max-height: 90vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 #f1f5f9;
}

.copy-doc-container::-webkit-scrollbar {
    width: 6px;
}

.copy-doc-container::-webkit-scrollbar-track {
    background: #f1f5f9;
}

.copy-doc-container::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

.copy-doc-container::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* 搜索框样式 */
.folder-search-container {
    position: relative;
    margin-bottom: 16px;
}

.folder-search-input {
    width: 100%;
    padding: 12px 16px 12px 40px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.3s ease;
    background: #ffffff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.folder-search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(78, 110, 242, 0.1);
    background: #fafbff;
}

.folder-search-input::placeholder {
    color: #9ca3af;
    font-style: italic;
}

.folder-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
    font-size: 16px;
    pointer-events: none;
    transition: color 0.3s ease;
}

.folder-search-input:focus + .folder-search-icon {
    color: var(--primary-color);
}

/* 文件夹树容器 */
.folder-tree-container {
    max-height: 280px;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    margin: 16px 0;
    overflow: hidden;
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.folder-tree {
    max-height: 280px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 #f1f5f9;
}

.folder-tree::-webkit-scrollbar {
    width: 6px;
}

.folder-tree::-webkit-scrollbar-track {
    background: #f1f5f9;
}

.folder-tree::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

.folder-tree::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* 加载和错误状态 */
.folder-tree-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    color: #6b7280;
    gap: 12px;
    font-size: 14px;
}

.folder-tree-loading i {
    font-size: 18px;
    animation: spin 1s linear infinite;
}

.folder-tree-error {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    color: #dc2626;
    background: #fef2f2;
    font-size: 14px;
    gap: 8px;
}

/* 文件夹树内容 */
.folder-tree-content {
    padding: 12px;
}

/* 文件夹分类 */
.folder-category {
    margin-bottom: 20px;
}

.folder-category:last-child {
    margin-bottom: 0;
}

.folder-category-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 8px;
    font-weight: 600;
    color: #374151;
    font-size: 14px;
    margin-bottom: 8px;
    border: 1px solid #e2e8f0;
    cursor: pointer;
    transition: all 0.2s ease;
    -webkit-user-select: none;
    user-select: none;
}

.folder-category-header:hover {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.folder-category-header.collapsed {
    margin-bottom: 0;
}

.folder-toggle-icon {
    color: #6b7280;
    font-size: 14px;
    transition: transform 0.2s ease;
    margin-right: 8px;
}

.folder-type-icon {
    color: var(--primary-color);
    font-size: 16px;
    margin-right: 8px;
}

.folder-category-header.collapsed .folder-toggle-icon {
    transform: rotate(-90deg);
}

.folder-category-header .folder-count {
    margin-left: auto;
    background: #e2e8f0;
    color: #64748b;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

/* 文件夹列表 */
.folder-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.folder-list.collapsed {
    max-height: 0;
    opacity: 0;
    margin: 0;
}

/* 文件夹项 */
.folder-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.folder-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: transparent;
    transition: background 0.2s ease;
}

.folder-item:hover {
    background: #f8fafc;
    border-color: #e2e8f0;
    transform: translateX(2px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.folder-item:hover::before {
    background: #cbd5e1;
}

.folder-item.selected {
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateX(4px);
    box-shadow: 0 4px 8px rgba(78, 110, 242, 0.15);
}

.folder-item.selected::before {
    background: var(--primary-color);
}

.folder-item i {
    color: #f59e0b;
    font-size: 16px;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.folder-item .folder-node-toggle-icon {
    color: #94a3b8;
    font-size: 12px;
    width: 14px;
    margin-right: 2px;
}

.folder-item .folder-node-toggle-placeholder {
    display: inline-block;
    width: 14px;
    height: 12px;
    margin-right: 2px;
    flex-shrink: 0;
}

.folder-item:hover i {
    color: #d97706;
    transform: scale(1.1);
}

.folder-item:hover .folder-node-toggle-icon {
    color: #94a3b8;
    transform: none;
}

.folder-item.selected i {
    color: var(--primary-color);
    transform: scale(1.1);
}

.folder-item.selected .folder-node-toggle-icon {
    color: var(--primary-color);
    transform: none;
}

.folder-name {
    font-size: 14px;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
    transition: color 0.2s ease;
}

.folder-item:hover .folder-name {
    color: #1f2937;
}

.folder-item.selected .folder-name {
    color: var(--primary-color);
    font-weight: 600;
}

/* 选中文件夹信息 */
.selected-folder-info {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 2px solid #bae6fd;
    border-radius: 12px;
    padding: 16px;
    margin: 16px 0;
    position: relative;
    overflow: hidden;
}

.selected-folder-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), #3b82f6);
}

.selected-folder-label {
    font-size: 12px;
    color: #0369a1;
    font-weight: 600;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.selected-folder-name {
    font-size: 15px;
    color: #1e40af;
    font-weight: 700;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.selected-folder-name::before {
    content: '✓';
    background: var(--primary-color);
    color: white;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.selected-folder-token {
    font-size: 12px;
    color: #64748b;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Courier New', monospace;
    background: #f1f5f9;
    padding: 6px 10px;
    border-radius: 6px;
    word-break: break-all;
    border: 1px solid #e2e8f0;
}

/* 空状态 */
.folder-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    color: #6b7280;
    text-align: center;
}

.folder-empty-state i {
    font-size: 32px;
    margin-bottom: 12px;
    color: #cbd5e1;
}

.folder-empty-state p {
    font-size: 14px;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .folder-tree-container {
        max-height: 200px;
    }
    
    .folder-tree {
        max-height: 200px;
    }
    
    .folder-item {
        padding: 8px 12px;
    }
    
    .folder-name {
        font-size: 13px;
    }
    
    .selected-folder-info {
        padding: 12px;
    }
}

/* 动画效果 */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        max-height: 500px;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 1;
        max-height: 500px;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        max-height: 0;
        transform: translateY(-10px);
    }
}

.folder-list.slide-down {
    animation: slideDown 0.3s ease-out;
}

.folder-list.slide-up {
    animation: slideUp 0.3s ease-out;
}