/**
 * 链家房源数据分析样式文件
 */

/* 图表加载动画 */
.chart-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    padding: 40px;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid #e9ecef;
    border-top-color: #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    margin-top: 16px;
    color: #6c757d;
    font-size: 14px;
}

/* 骨架屏 */
.chart-skeleton {
    padding: 20px;
    background: #fff;
    border-radius: 8px;
}

.skeleton-header {
    height: 24px;
    width: 40%;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 4px;
    margin-bottom: 20px;
}

.skeleton-body {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 200px;
    padding: 0 10px;
}

.skeleton-bar {
    width: 12%;
    background: linear-gradient(180deg, #e0e0e0 0%, #f0f0f0 100%);
    border-radius: 4px 4px 0 0;
    animation: pulse 1.5s ease-in-out infinite;
}

.skeleton-bar:nth-child(2) { animation-delay: 0.1s; }
.skeleton-bar:nth-child(3) { animation-delay: 0.2s; }
.skeleton-bar:nth-child(4) { animation-delay: 0.3s; }
.skeleton-bar:nth-child(5) { animation-delay: 0.4s; }

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 错误提示 */
.chart-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    padding: 40px;
    text-align: center;
}

.error-text {
    margin-top: 16px;
    color: #6c757d;
    font-size: 14px;
}

/* 图表容器 */
.chart-container {
    position: relative;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
}

.chart-container.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    padding: 20px;
    background: #fff;
}

/* 图表工具栏 */
.chart-toolbar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    padding: 10px;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.chart-toolbar .btn {
    padding: 4px 8px;
    font-size: 12px;
}

.chart-toolbar .btn i {
    font-size: 14px;
}

/* 视图切换 */
.view-toggle {
    display: inline-flex;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid #dee2e6;
}

.view-toggle .btn {
    border-radius: 0;
    border: none;
    font-size: 12px;
    padding: 6px 12px;
}

.view-toggle .btn:not(:last-child) {
    border-right: 1px solid #dee2e6;
}

.view-toggle .btn.active {
    background: #3498db;
    color: #fff;
}

/* 表格视图 */
.table-view {
    max-height: 500px;
    overflow: auto;
}

.table-view::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.table-view::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.table-view::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

.table-view::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* 筛选器 */
.filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 8px;
    margin-bottom: 16px;
}

.filter-group .form-group {
    margin-bottom: 0;
}

.filter-group label {
    font-size: 12px;
    color: #6c757d;
    margin-bottom: 4px;
    display: block;
}

.filter-group .form-control,
.filter-group .form-select {
    font-size: 14px;
    padding: 8px 12px;
    min-width: 150px;
}

/* 统计卡片 */
.stat-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.stat-card .stat-icon {
    font-size: 2.5rem;
    opacity: 0.8;
}

.stat-card .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: #2c3e50;
}

.stat-card .stat-label {
    font-size: 0.85rem;
    color: #7f8c8d;
    margin-top: 4px;
}

/* 响应式 */
@media (max-width: 768px) {
    .chart-container {
        margin: -15px;
        border-radius: 0;
    }
    
    .chart-toolbar {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .filter-group {
        flex-direction: column;
    }
    
    .filter-group .form-control,
    .filter-group .form-select {
        min-width: 100%;
    }
    
    .stat-card .stat-value {
        font-size: 1.5rem;
    }
    
    .stat-card .stat-icon {
        font-size: 2rem;
    }
}

/* Toast通知 */
.toast-container {
    z-index: 10000;
}

.toast {
    min-width: 280px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* 导航栏优化 */
.navbar {
    backdrop-filter: blur(10px);
    background: linear-gradient(135deg, rgba(44, 62, 80, 0.95), rgba(52, 152, 219, 0.95)) !important;
}

.navbar .nav-link {
    position: relative;
    padding: 8px 16px;
}

.navbar .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: #fff;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar .nav-link:hover::after,
.navbar .nav-link.active::after {
    width: 80%;
}

/* 卡片动画 */
.card {
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

/* 页面过渡 */
.page-transition {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 侧边栏 */
.sidebar {
    position: sticky;
    top: 20px;
}

.sidebar .nav-link {
    border-radius: 8px;
    margin-bottom: 4px;
    transition: all 0.2s ease;
}

.sidebar .nav-link:hover {
    background: rgba(52, 152, 219, 0.1);
    color: #3498db;
}

.sidebar .nav-link.active {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: #fff;
}

/* 进度条 */
.progress {
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    transition: width 0.6s ease;
}

/* 表格优化 */
.table {
    margin-bottom: 0;
}

.table th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
    border-bottom-width: 2px;
}

.table td {
    vertical-align: middle;
}

/* 下拉菜单优化 */
.dropdown-menu {
    border: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    padding: 8px 0;
}

.dropdown-item {
    padding: 8px 16px;
    font-size: 14px;
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background: rgba(52, 152, 219, 0.1);
    color: #3498db;
}

.dropdown-item i {
    width: 20px;
    text-align: center;
    margin-right: 8px;
}

/* 按钮优化 */
.btn {
    transition: all 0.2s ease;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #34495e, #2980b9);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

/* 打印样式 */
@media print {
    .navbar,
    .footer,
    .chart-toolbar,
    .filter-group,
    .sidebar {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #dee2e6;
    }
    
    .chart-container {
        page-break-inside: avoid;
    }
}