/* ========================================
   OpenClaw Dashboard v2 - 现代内容创作工作台
   设计规范：现代、简洁、专业
   ======================================== */

/* CSS 变量定义 - 浅色主题 */
:root {
    /* 主色调 */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;

    /* 功能色 */
    --success-50: #f0fdf4;
    --success-500: #22c55e;
    --success-600: #16a34a;
    --warning-50: #fffbeb;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    --error-50: #fef2f2;
    --error-500: #ef4444;
    --error-600: #dc2626;

    /* 中性色 */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* 语义色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* 字体 */
    --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* 间距 */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;

    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;

    /* 过渡 */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* 侧边栏宽度 */
    --sidebar-width: 260px;
    --sidebar-collapsed: 72px;
}

/* 深色主题 */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.4);
}

/* ========================================
   基础重置
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ========================================
   布局 - 侧边栏
   ======================================== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width var(--transition-base);
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar-header {
    padding: var(--space-5) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--primary-600);
    flex-shrink: 0;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    transition: opacity var(--transition-base);
}

.sidebar.collapsed .logo-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.sidebar-toggle {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
}

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

.sidebar.collapsed .sidebar-toggle {
    transform: rotate(180deg);
}

/* 导航菜单 */
.sidebar-nav {
    flex: 1;
    padding: var(--space-4);
    overflow-y: auto;
}

.nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-item.active .nav-link {
    background: var(--primary-50);
    color: var(--primary-600);
}

[data-theme="dark"] .nav-item.active .nav-link {
    background: var(--primary-900);
}

.nav-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-text {
    font-size: 0.9375rem;
    font-weight: 500;
    white-space: nowrap;
    transition: opacity var(--transition-base);
}

.sidebar.collapsed .nav-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.nav-badge {
    margin-left: auto;
    padding: 0.125rem 0.5rem;
    background: var(--primary-500);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    transition: opacity var(--transition-base);
}

.nav-badge.warning {
    background: var(--warning-500);
}

.sidebar.collapsed .nav-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 8px;
    height: 8px;
    padding: 0;
    font-size: 0;
}

/* 侧边栏底部 */
.sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.user-details {
    display: flex;
    flex-direction: column;
    transition: opacity var(--transition-base);
}

.sidebar.collapsed .user-details {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.theme-toggle {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
    position: relative;
}

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

.theme-icon-light,
.theme-icon-dark {
    position: absolute;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

[data-theme="light"] .theme-icon-dark {
    opacity: 0;
    transform: rotate(90deg);
}

[data-theme="dark"] .theme-icon-light {
    opacity: 0;
    transform: rotate(-90deg);
}

/* ========================================
   布局 - 主内容区
   ======================================== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left var(--transition-base);
}

.sidebar.collapsed + .main-content {
    margin-left: var(--sidebar-collapsed);
}

/* 顶部栏 */
.top-bar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-4) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.mobile-menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
}

.mobile-menu-toggle:hover {
    background: var(--bg-tertiary);
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--primary-600);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-700);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-new {
    padding: var(--space-2) var(--space-5);
}

.btn-new svg {
    width: 18px;
    height: 18px;
}

.btn-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
}

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

.btn-icon svg {
    width: 16px;
    height: 16px;
}

/* 内容包装器 */
.content-wrapper {
    padding: var(--space-6);
}

/* ========================================
   数据统计卡片
   ======================================== */
.stats-section {
    margin-bottom: var(--space-8);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
}

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    transition: all var(--transition-base);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon svg {
    width: 24px;
    height: 24px;
}

.stat-icon.today {
    background: var(--primary-50);
    color: var(--primary-600);
}

[data-theme="dark"] .stat-icon.today {
    background: var(--primary-900);
}

.stat-icon.week {
    background: var(--success-50);
    color: var(--success-600);
}

.stat-icon.total {
    background: var(--warning-50);
    color: var(--warning-600);
}

.stat-icon.views {
    background: #fdf2f8;
    color: #db2777;
}

.stat-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.stat-trend {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-tertiary);
}

.stat-trend.up {
    color: var(--success-600);
}

.stat-trend.down {
    color: var(--error-600);
}

.stat-trend svg {
    width: 14px;
    height: 14px;
}

/* ========================================
   仪表板网格
   ======================================== */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-6);
}

.dashboard-section {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.section-header {
    padding: var(--space-5) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.section-title svg {
    width: 18px;
    height: 18px;
    color: var(--primary-600);
}

.section-link {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-600);
    transition: color var(--transition-fast);
}

.section-link:hover {
    color: var(--primary-700);
}

.section-link svg {
    width: 16px;
    height: 16px;
}

/* ========================================
   文章列表
   ======================================== */
.articles-section .section-header {
    background: linear-gradient(to right, var(--bg-primary), var(--bg-secondary));
}

.article-list {
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.article-card {
    padding: var(--space-5);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    transition: all var(--transition-base);
}

.article-card:hover {
    border-color: var(--primary-300);
    box-shadow: var(--shadow-md);
}

.article-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.article-type {
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
}

.article-type.story {
    background: #fdf2f8;
    color: #be185d;
}

.article-type.analysis {
    background: #eff6ff;
    color: #1d4ed8;
}

[data-theme="dark"] .article-type.story {
    background: rgba(190, 24, 93, 0.2);
}

[data-theme="dark"] .article-type.analysis {
    background: rgba(29, 78, 216, 0.2);
}

.article-date {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

.article-title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    line-height: 1.4;
}

.article-summary {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--space-4);
}

.article-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.word-count {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

.word-count svg {
    width: 14px;
    height: 14px;
}

.article-status {
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 500;
}

.article-status.published {
    background: var(--success-50);
    color: var(--success-600);
}

.article-status.draft {
    background: var(--gray-100);
    color: var(--gray-600);
}

[data-theme="dark"] .article-status.published {
    background: rgba(34, 197, 94, 0.2);
}

[data-theme="dark"] .article-status.draft {
    background: rgba(100, 116, 139, 0.2);
}

.article-actions {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.article-card:hover .article-actions {
    opacity: 1;
}

/* ========================================
   快速操作
   ======================================== */
.quick-actions-grid {
    padding: var(--space-5);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.quick-action-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-5);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    transition: all var(--transition-base);
}

.quick-action-card:hover {
    border-color: var(--primary-300);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.quick-action-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-action-icon svg {
    width: 24px;
    height: 24px;
}

.quick-action-icon.primary {
    background: var(--primary-50);
    color: var(--primary-600);
}

.quick-action-icon.secondary {
    background: #fdf2f8;
    color: #db2777;
}

.quick-action-icon.success {
    background: var(--success-50);
    color: var(--success-600);
}

.quick-action-icon.warning {
    background: var(--warning-50);
    color: var(--warning-600);
}

[data-theme="dark"] .quick-action-icon.primary {
    background: var(--primary-900);
}

.quick-action-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* ========================================
   待办事项
   ======================================== */
.todo-preview .section-header {
    background: linear-gradient(to right, var(--bg-primary), var(--success-50));
}

[data-theme="dark"] .todo-preview .section-header {
    background: linear-gradient(to right, var(--bg-primary), rgba(34, 197, 94, 0.1));
}

.todo-list {
    padding: var(--space-4) var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.todo-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) 0;
}

.todo-checkbox {
    position: relative;
    display: flex;
    align-items: center;
    cursor: pointer;
}

.todo-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.todo-checkbox input:checked + .checkmark {
    background: var(--success-500);
    border-color: var(--success-500);
}

.checkmark::after {
    content: '';
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) translate(-1px, -1px);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.todo-checkbox input:checked + .checkmark::after {
    opacity: 1;
}

.todo-text {
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.todo-item.completed .todo-text {
    text-decoration: line-through;
    color: var(--text-tertiary);
}

.todo-progress {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 9999px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-500), var(--success-600));
    border-radius: 9999px;
    transition: width var(--transition-slow);
}

.progress-text {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-tertiary);
    white-space: nowrap;
}

/* ========================================
   日历预览
   ======================================== */
.calendar-preview .section-header {
    background: linear-gradient(to right, var(--bg-primary), var(--warning-50));
}

[data-theme="dark"] .calendar-preview .section-header {
    background: linear-gradient(to right, var(--bg-primary), rgba(245, 158, 11, 0.1));
}

.mini-calendar {
    padding: var(--space-5);
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.calendar-nav {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
}

.calendar-nav:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.calendar-nav svg {
    width: 16px;
    height: 16px;
}

.calendar-month {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-1);
    margin-bottom: var(--space-2);
}

.calendar-weekdays span {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-tertiary);
    padding: var(--space-1);
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-1);
}

.day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8125rem;
    color: var(--text-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.day.other-month {
    color: var(--text-tertiary);
}

.day.today {
    background: var(--primary-600);
    color: white;
    font-weight: 600;
}

.day.has-event {
    position: relative;
    font-weight: 600;
    color: var(--primary-600);
}

.day.has-event::after {
    content: '';
    position: absolute;
    bottom: 4px;
    width: 4px;
    height: 4px;
    background: var(--primary-500);
    border-radius: 50%;
}

.calendar-legend {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--space-4);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.legend-dot.today {
    background: var(--primary-600);
}

.legend-dot.event {
    background: var(--primary-500);
}

/* ========================================
   加载状态
   ======================================== */
.loading-state {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-8);
    color: var(--text-tertiary);
}

.loading-state svg {
    width: 24px;
    height: 24px;
}

.spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ========================================
   移动端遮罩
   ======================================== */
.mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ========================================
   弹窗
   ======================================== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 480px;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    transform: scale(0.95) translateY(10px);
    transition: transform var(--transition-base);
}

.modal.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: var(--space-5) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
}

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

.modal-close svg {
    width: 18px;
    height: 18px;
}

.modal-body {
    padding: var(--space-6);
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group textarea:focus,
[data-theme="dark"] .form-group select:focus {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-tertiary);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.modal-footer {
    padding: var(--space-4) var(--space-6) var(--space-6);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
}

.modal-footer .btn {
    padding: var(--space-2) var(--space-5);
}

/* ========================================
   Toast 通知
   ======================================== */
.toast-container {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: toast-in 0.3s ease;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast.success {
    border-left: 4px solid var(--success-500);
}

.toast.error {
    border-left: 4px solid var(--error-500);
}

.toast.warning {
    border-left: 4px solid var(--warning-500);
}

.toast-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.toast.success .toast-icon {
    color: var(--success-500);
}

.toast.error .toast-icon {
    color: var(--error-500);
}

.toast.warning .toast-icon {
    color: var(--warning-500);
}

.toast-message {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.toast-close {
    margin-left: auto;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.toast-close:hover {
    color: var(--text-primary);
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1280px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .dashboard-sidebar {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }
}

@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .search-box input {
        width: 200px;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .dashboard-sidebar {
        grid-template-columns: 1fr;
    }
    
    .quick-actions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .top-bar {
        flex-wrap: wrap;
    }
    
    .top-bar-right {
        width: 100%;
        order: 3;
    }
    
    .search-box {
        flex: 1;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .content-wrapper {
        padding: var(--space-4);
    }
    
    .article-actions {
        opacity: 1;
    }
}

@media (max-width: 480px) {
    .quick-actions-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        flex-direction: column;
        text-align: center;
    }
    
    .modal-content {
        margin: var(--space-4);
    }
}

/* ========================================
   加载状态和空状态
   ======================================== */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-12);
    color: var(--text-tertiary);
    gap: var(--space-3);
}

.loading-state i {
    width: 32px;
    height: 32px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-12);
    text-align: center;
    color: var(--text-tertiary);
    gap: var(--space-4);
}

.empty-state i {
    width: 48px;
    height: 48px;
    color: var(--gray-300);
    margin-bottom: var(--space-2);
}

.empty-state p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
}

.empty-state .btn {
    margin-top: var(--space-2);
}