/* 主题变量 */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-hover: #f0f0f0;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --border-color: #e5e5e5;
    --shadow: rgba(0, 0, 0, 0.05);
    --accent: #1a1a1a;
}

[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #242424;
    --bg-hover: #2a2a2a;
    --text-primary: #e5e5e5;
    --text-secondary: #a0a0a0;
    --text-tertiary: #666666;
    --border-color: #333333;
    --shadow: rgba(0, 0, 0, 0.3);
    --accent: #ffffff;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: background 0.3s, color 0.3s;
}

.admin-container {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 240px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 30px 0;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    overflow-y: auto;
}

.admin-sidebar h2 {
    padding: 0 24px;
    margin-bottom: 30px;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.admin-sidebar nav a {
    display: block;
    padding: 12px 24px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    font-size: 14px;
}

.admin-sidebar nav a:hover,
.admin-sidebar nav a.active {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-left: 3px solid var(--accent);
}

.admin-main {
    flex: 1;
    margin-left: 240px;
    padding: 40px;
    background: var(--bg-primary);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.admin-header h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.admin-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.btn:hover {
    background: var(--bg-hover);
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
    border-color: var(--accent);
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-danger {
    background: #ef4444;
    color: #fff;
    border-color: #ef4444;
}

.btn-danger:hover {
    background: #dc2626;
    border-color: #dc2626;
}

.theme-toggle-admin {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    color: var(--text-secondary);
}

.theme-toggle-admin:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.theme-toggle-admin svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.table-container {
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

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

.data-table th,
.data-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--bg-hover);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table td {
    color: var(--text-secondary);
    font-size: 14px;
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover {
    background: var(--bg-hover);
}

.data-table a {
    color: var(--text-primary);
    text-decoration: none;
    transition: opacity 0.2s;
}

.data-table a:hover {
    opacity: 0.7;
}

.doc-title-cell {
    font-weight: 500;
    max-width: 400px;
}

.doc-title-link {
    display: block;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.2s;
    padding: 4px 0;
}

.doc-title-link:hover {
    color: var(--accent);
    transform: translateX(4px);
}

.btn-link {
    color: var(--text-primary);
    text-decoration: none;
    margin-right: 12px;
    cursor: pointer;
    display: inline-block;
    font-size: 14px;
    transition: opacity 0.2s;
}

.btn-link:hover {
    opacity: 0.7;
}

.text-danger {
    color: #e74c3c;
}

.badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

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

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

.form-container {
    background: var(--bg-secondary);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group textarea {
    resize: vertical;
    font-family: 'Courier New', monospace;
    line-height: 1.6;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 30px;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--bg-primary);
    padding: 30px;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    border: 1px solid var(--border-color);
}

.modal-content h3 {
    margin-bottom: 24px;
    color: var(--text-primary);
    font-size: 18px;
}

.pagination {
    margin-top: 24px;
    text-align: center;
}

.pagination a {
    display: inline-block;
    padding: 8px 12px;
    margin: 0 4px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    transition: all 0.2s;
}

.pagination a:hover {
    background: var(--bg-hover);
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* 友情链接页面样式 */
.link-url {
    color: var(--accent);
    text-decoration: none;
    max-width: 300px;
    display: inline-block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.link-url:hover {
    text-decoration: underline;
}

.text-secondary {
    color: var(--text-secondary);
}

.empty-state {
    text-align: center;
    padding: 60px 20px !important;
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-text {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-weight: 500;
}

.empty-hint {
    font-size: 14px;
    color: var(--text-secondary);
}

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

.status-badge.status-active {
    background: rgba(52, 211, 153, 0.1);
    color: #10b981;
}

.status-badge.status-inactive {
    background: rgba(156, 163, 175, 0.1);
    color: #6b7280;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    margin-bottom: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.form-hint {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 6px;
}

.required {
    color: #ef4444;
}

/* 标签页样式 */
.settings-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0;
}

.tab-btn {
    padding: 0.875rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    bottom: -2px;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.tab-btn.active {
    color: var(--text-primary);
    border-bottom-color: var(--text-primary);
    font-weight: 600;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

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

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

/* 响应式 */
@media (max-width: 768px) {
    .settings-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .tab-btn {
        white-space: nowrap;
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
    }
}