/**
 * 管理端通用样式
 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
                 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: #f5f7fa;
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.admin-sidebar {
    width: 260px;
    background: #2c3e50;
    color: #ecf0f1;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1000;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: #bdc3c7;
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ecf0f1;
}

.nav-item.active {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
    border-left-color: #667eea;
}

.nav-icon {
    fill: currentColor;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-logout {
    width: 100%;
    padding: 12px;
    background: rgba(231, 76, 60, 0.1);
    border: 1px solid rgba(231, 76, 60, 0.3);
    border-radius: 8px;
    color: #e74c3c;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
}

.btn-logout:hover {
    background: rgba(231, 76, 60, 0.2);
}

.btn-logout svg {
    fill: currentColor;
}

/* 主内容区 */
.admin-main {
    margin-left: 260px;
    flex: 1;
    padding: 24px;
    max-width: calc(100vw - 260px);
}

/* 顶部栏 */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.admin-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: #2c3e50;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.admin-user-name {
    font-size: 14px;
    color: #7f8c8d;
}

/* 统计卡片 */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    display: flex;
    gap: 20px;
    align-items: flex-start;
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-primary .stat-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.card-success .stat-icon {
    background: linear-gradient(135deg, #34a853 0%, #00c853 100%);
}

.card-info .stat-icon {
    background: linear-gradient(135deg, #1976d2 0%, #2196f3 100%);
}

.card-warning .stat-icon {
    background: linear-gradient(135deg, #ff9800 0%, #ffc107 100%);
}

.stat-icon svg {
    fill: #fff;
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: #2c3e50;
    line-height: 1.2;
}

.stat-label {
    font-size: 14px;
    color: #7f8c8d;
    margin-top: 4px;
}

.stat-change {
    font-size: 13px;
    color: #95a5a6;
    margin-top: 8px;
}

.stat-change span {
    font-weight: 600;
    color: #667eea;
}

/* 图表区域 */
.charts-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.chart-container {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.chart-container canvas {
    height: 300px !important;
}

.chart-small canvas {
    height: 250px !important;
}

.chart-title {
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 16px;
}

/* 活动区域 */
.activity-section {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: 32px;
}

.section-title {
    font-size: 18px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.2s;
}

.activity-item:hover {
    background: #e9ecef;
}

.activity-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-icon.success {
    background: #d4edda;
}

.activity-icon.success svg {
    fill: #28a745;
}

.activity-icon.failed {
    background: #f8d7da;
}

.activity-icon.failed svg {
    fill: #dc3545;
}

.activity-content {
    flex: 1;
}

.activity-text {
    font-size: 14px;
    color: #495057;
    line-height: 1.5;
}

.activity-text strong {
    color: #2c3e50;
}

.activity-status {
    margin-left: 8px;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.activity-status.success {
    background: #d4edda;
    color: #28a745;
}

.activity-status.failed {
    background: #f8d7da;
    color: #dc3545;
}

.activity-time {
    font-size: 12px;
    color: #95a5a6;
    margin-top: 4px;
}

/* Toast提示 */
.toast {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    padding: 16px 24px;
    background: #333;
    color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    font-size: 14px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 10000;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast-success {
    background: #4caf50;
}

.toast-error {
    background: #f44336;
}

.toast-warning {
    background: #ff9800;
}

.toast-info {
    background: #2196f3;
}

/* 加载和空数据状态 */
.loading-text,
.no-data {
    text-align: center;
    color: #95a5a6;
    padding: 24px;
    font-size: 14px;
}

/* 表格样式 */
.table-container {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: #f8f9fa;
}

th {
    padding: 16px;
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: #495057;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    padding: 16px;
    border-top: 1px solid #e9ecef;
    font-size: 14px;
    color: #495057;
}

tr:hover {
    background: #f8f9fa;
}

/* 徽章 */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.badge-primary {
    background: #e3f2fd;
    color: #1976d2;
}

.badge-success {
    background: #e8f5e9;
    color: #388e3c;
}

.badge-warning {
    background: #fff3e0;
    color: #f57c00;
}

.badge-danger {
    background: #ffebee;
    color: #c62828;
}

.badge-default {
    background: #f5f7fa;
    color: #7f8c8d;
}

/* 按钮 */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: #ecf0f1;
    color: #7f8c8d;
}

.btn-secondary:hover {
    background: #d5d8dc;
}

.btn-danger {
    background: #e74c3c;
    color: #fff;
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-success {
    background: #27ae60;
    color: #fff;
}

.btn-success:hover {
    background: #229954;
}

/* 表单元素 */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: #495057;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ced4da;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ced4da;
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
    cursor: pointer;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 24px;
}

.page-btn {
    padding: 8px 16px;
    background: #fff;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    color: #495057;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.page-btn:hover {
    border-color: #667eea;
    color: #667eea;
}

.page-btn.active {
    background: #667eea;
    border-color: #667eea;
    color: #fff;
}

.page-info {
    font-size: 14px;
    color: #95a5a6;
    margin-left: 8px;
}

/* 筛选区域 */
.filters-section {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: 24px;
}

.filters-container {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filters-container .form-control,
.filters-container .form-select {
    flex: 1;
    min-width: 200px;
}

.batch-actions {
    display: flex;
    gap: 12px;
}

/* 表格区域 */
.table-section {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: 32px;
}

/* 按钮图标 */
.btn-icon {
    padding: 6px;
    background: transparent;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: #f5f7fa;
}

.btn-icon.btn-danger:hover {
    background: #ffebee;
}

.btn-icon svg {
    fill: #7f8c8d;
}

.btn-icon.btn-danger svg {
    fill: #e74c3c;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: #fff;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: #2c3e50;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    color: #95a5a6;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s;
}

.modal-close:hover {
    background: #f5f7fa;
    color: #2c3e50;
}

.modal-body {
    padding: 24px;
}

/* 用户详情 */
.user-detail {
    color: #495057;
}

.user-detail h4 {
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 16px;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-item label {
    font-size: 12px;
    color: #7f8c8d;
    font-weight: 500;
}

.detail-item span {
    font-size: 14px;
    color: #2c3e50;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
}

.stat-item {
    text-align: center;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 8px;
}

.stat-item .stat-value {
    font-size: 24px;
    font-weight: 700;
    color: #667eea;
}

.stat-item .stat-label {
    font-size: 12px;
    color: #7f8c8d;
    margin-top: 4px;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    font-size: 14px;
}

/* 表单操作按钮 */
.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 24px;
}

/* Tab切换 */
.tabs-section {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

.tab-btn {
    padding: 12px 24px;
    background: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    color: #7f8c8d;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.tab-btn:hover {
    background: #f8f9fa;
}

.tab-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* 模态框大小变体 */
.modal-large {
    max-width: 900px;
}

/* 摘要文本 */
.abstract-text {
    max-height: 200px;
    overflow-y: auto;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    line-height: 1.6;
    font-size: 14px;
}

/* 表格单元格样式 */
.title-cell {
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.author-cell {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 日志Tab */
.log-tab {
    display: none;
}

.log-tab.active {
    display: block;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .charts-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .admin-sidebar {
        width: 200px;
    }
    
    .admin-main {
        margin-left: 200px;
        max-width: calc(100vw - 200px);
    }
    
    .stats-section {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .charts-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    body {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }
    
    .admin-main {
        margin-left: 0;
        max-width: 100vw;
    }
    
    .stats-section {
        grid-template-columns: 1fr;
    }
}