/* =============================================
   MacCMS10 API Admin - Professional Backend Style
   Design Concept: Clean, Modern, API-focused
   ============================================= */

/* =============================================
   SVG Icon System - 内联 SVG 图标，无需外部依赖
   ============================================= */
/* Material Icons 字体 - 本地备用方案 */
@font-face {
  font-family: 'Material Icons';
  font-style: normal;
  font-weight: 400;
  src: url('https://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNc.woff2') format('woff2');
}

/* 搜索框图标 - 使用 Material Icons 字体 */
.search-box::before {
  font-family: 'Material Icons';
  content: 'search';
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.25rem;
  pointer-events: none;
}

.material-icons {
  font-family: 'Material Icons' !important;
  font-weight: normal;
  font-style: normal;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  width: 1em;
  height: 1em;
  flex-shrink: 0;
  font-size: 1.25rem;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
}

.material-icons svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.icon-svg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25em;
  height: 1.25em;
  flex-shrink: 0;
}

.icon-svg svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

/* =============================================
   CSS Variables - Theme System
   ============================================= */
:root {
  /* Primary Colors - Professional Blue Theme */
  --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;

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

  /* Accent Colors */
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --accent-info: #06b6d4;

  /* Background Colors */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-hover: #eff6ff;

  /* Text Colors */
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;

  /* Border & Shadows */
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Typography - 使用系统字体，更快加载 */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Monaco, Consolas, 'Liberation Mono', monospace;
  --tracking-tight: -0.015em;
  --tracking-wide: 0.06em;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Layout */
  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;
  --header-height: 64px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.35s ease;

  /* Surfaces & Atmosphere（更“有质感”的底层材质） */
  --surface-0: rgba(255, 255, 255, 0.72);
  --surface-1: rgba(255, 255, 255, 0.88);
  --surface-border: rgba(15, 23, 42, 0.08);
  --surface-glow: rgba(59, 130, 246, 0.14);
  --glass-blur: 14px;
  --bg-grid-color: rgba(148, 163, 184, 0.06);
  --bg-noise-color: rgba(255, 255, 255, 0.04);

  /* 兼容部分页面内联/局部样式（如 system_logs、activate）引用的变量名 */
  --text-color: var(--text-primary);
  --card-bg: var(--bg-secondary);
  --bg-color: var(--bg-secondary);
  --primary-color: var(--primary-600);
  --danger-color: var(--accent-danger);
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-hover: #1e3a8a;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --border-color: #334155;
  --border-light: #1e293b;

  --surface-0: rgba(15, 23, 42, 0.58);
  --surface-1: rgba(15, 23, 42, 0.82);
  --surface-border: rgba(148, 163, 184, 0.18);
  --surface-glow: rgba(96, 165, 250, 0.18);
  --bg-grid-color: rgba(148, 163, 184, 0.08);
  --bg-noise-color: rgba(255, 255, 255, 0.05);

  --primary-color: var(--primary-500);
}

/* 防止主题切换闪烁 - 立即应用保存的主题 */
html {
  background-color: #0f172a; /* 默认深色，与深色主题一致 */
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

html[data-theme="light"] {
  background-color: #f8fafc;
  color-scheme: light;
}

html[data-theme="dark"] {
  background-color: #0f172a;
  color-scheme: dark;
}

/* 浅色主题变量 */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-hover: #e2e8f0;

  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;

  --border-color: #e2e8f0;
  --border-light: #f1f5f9;

  --surface-0: rgba(30, 41, 59, 0.05);
  --surface-1: #1e293b; /* 侧边栏使用深色 */
  --surface-border: rgba(30, 41, 59, 0.12);
  --surface-glow: rgba(102, 126, 234, 0.12);
  --bg-grid-color: rgba(30, 41, 59, 0.05);
  --bg-noise-color: rgba(0, 0, 0, 0.02);

  --primary-color: #667eea;

  /* 浅色主题背景装饰颜色 */
  --gradient-1: rgba(59, 130, 246, 0.08);
  --gradient-2: rgba(16, 185, 129, 0.06);
  --gradient-3: rgba(245, 158, 11, 0.06);
}

[data-theme="light"] body::before {
  background:
    radial-gradient(1000px 600px at 15% 5%, var(--gradient-1), transparent 55%),
    radial-gradient(900px 520px at 85% 0%, var(--gradient-2), transparent 55%),
    radial-gradient(900px 520px at 90% 85%, var(--gradient-3), transparent 60%),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.02), transparent 24%);
}

[data-theme="light"] body::after {
  mix-blend-mode: multiply;
}

/* 浅色主题下header样式 */
[data-theme="light"] .header {
  background: rgba(255, 255, 255, 0.95) !important;
  border-bottom: 1px solid #e2e8f0 !important;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .header-title {
  color: #1e293b !important;
}

[data-theme="light"] .header-title::after {
  background: linear-gradient(90deg, #667eea, rgba(16, 185, 129, 0.55), rgba(245, 158, 11, 0.35));
}

/* 浅色主题下main-content样式 */
[data-theme="light"] .main-content {
  background: #f8fafc !important;
}

/* 浅色主题下卡片样式 */
[data-theme="light"] .card,
[data-theme="light"] .chart-container,
[data-theme="light"] .timeline,
[data-theme="light"] .stat-card {
  background: rgba(255, 255, 255, 0.95) !important;
  border: 1px solid #e2e8f0 !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08) !important;
}

/* 浅色主题下表格样式 */
[data-theme="light"] table {
  background: rgba(255, 255, 255, 0.95) !important;
  border: 1px solid #e2e8f0 !important;
}

[data-theme="light"] th {
  background: #f1f5f9 !important;
  color: #475569 !important;
}

[data-theme="light"] td {
  color: #1e293b !important;
  border-bottom: 1px solid #f1f5f9 !important;
}

[data-theme="light"] tr:hover {
  background: rgba(102, 126, 234, 0.05) !important;
}

/* 浅色主题下按钮样式 */
[data-theme="light"] .btn {
  background: #ffffff !important;
  border: 1px solid #e2e8f0 !important;
  color: #1e293b !important;
}

[data-theme="light"] .btn:hover {
  background: rgba(102, 126, 234, 0.1) !important;
  border-color: rgba(102, 126, 234, 0.3) !important;
}

[data-theme="light"] .btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
  color: #ffffff !important;
  border: none !important;
}

/* 浅色主题下表单样式 */
[data-theme="light"] .form-group input,
[data-theme="light"] .form-group select,
[data-theme="light"] .form-group textarea {
  background: #ffffff !important;
  border: 2px solid #e2e8f0 !important;
  color: #1e293b !important;
}

[data-theme="light"] .form-group input:focus,
[data-theme="light"] .form-group select:focus,
[data-theme="light"] .form-group textarea:focus {
  border-color: #667eea !important;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15) !important;
}

/* 浅色主题下搜索框样式 */
[data-theme="light"] .search-box {
  background: #f1f5f9 !important;
  border: 1px solid #e2e8f0 !important;
}

[data-theme="light"] .search-input {
  background: #ffffff !important;
  color: #1e293b !important;
}

/* 浅色主题下下拉菜单样式 */
[data-theme="light"] .admin-menu-dropdown {
  background: #ffffff !important;
  border: 1px solid #e2e8f0 !important;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12) !important;
}

[data-theme="light"] .admin-menu-dropdown a {
  color: #1e293b !important;
}

[data-theme="light"] .admin-menu-dropdown a:hover {
  background: rgba(102, 126, 234, 0.08) !important;
}

/* 浅色主题下admin-menu-btn样式 */
[data-theme="light"] .admin-menu-btn {
  background: #f1f5f9 !important;
  border: 1px solid #e2e8f0 !important;
  color: #1e293b !important;
}

/* 深色主题背景装饰颜色 */
[data-theme="dark"] {
  --gradient-1: rgba(59, 130, 246, 0.12);
  --gradient-2: rgba(16, 185, 129, 0.10);
  --gradient-3: rgba(245, 158, 11, 0.10);
}

/* =============================================
   Global Reset & Base Styles
   ============================================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  display: flex;
  min-height: 100vh;
  max-width: 100vw;
  transition:
    background var(--transition-normal),
    color var(--transition-normal),
    background-color 0.25s ease;
  position: relative;
  letter-spacing: var(--tracking-tight);
}

/* 全局氛围背景（不改动结构，仅提升层次）
   - 轻微“蓝图网格” + 极淡噪点，让纯色背景不再“空”
*/
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(1000px 600px at 15% 5%, var(--gradient-1), transparent 55%),
    radial-gradient(900px 520px at 85% 0%, var(--gradient-2), transparent 55%),
    radial-gradient(900px 520px at 90% 85%, var(--gradient-3), transparent 60%),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.25), transparent 24%);
  opacity: 0.9;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 1;
  mix-blend-mode: multiply;
  background-image:
    /* 细网格 */
    linear-gradient(to right, var(--bg-grid-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--bg-grid-color) 1px, transparent 1px),
    /* 轻微噪点（用渐变模拟，避免大 data-uri） */
    radial-gradient(circle at 20% 30%, var(--bg-noise-color) 0 1px, transparent 2px),
    radial-gradient(circle at 70% 20%, var(--bg-noise-color) 0 1px, transparent 2px),
    radial-gradient(circle at 55% 65%, var(--bg-noise-color) 0 1px, transparent 2px),
    radial-gradient(circle at 10% 80%, var(--bg-noise-color) 0 1px, transparent 2px),
    radial-gradient(circle at 92% 78%, var(--bg-noise-color) 0 1px, transparent 2px);
  background-size:
    44px 44px,
    44px 44px,
    220px 220px,
    260px 260px,
    300px 300px,
    240px 240px,
    280px 280px;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--secondary-300);
  border-radius: 3px;
  transition: background var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--secondary-400);
}

/* Selection */
::selection {
  background: var(--primary-100);
  color: var(--primary-700);
}

[data-theme="dark"] ::selection {
  background: var(--primary-800);
  color: var(--text-primary);
}

/* =============================================
   Sidebar - Professional API Style
   ============================================= */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  transition: width var(--transition-normal), transform var(--transition-normal), background var(--transition-normal);
}

/* Sidebar Header */
.sidebar-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--primary-600);
  min-width: 0;
  flex: 1;
}

.sidebar-logo span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

[data-theme="dark"] .sidebar-logo {
  color: var(--primary-400);
}

/* Sidebar Logo with SVG icon */
.sidebar-logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  flex-shrink: 0;
}

.sidebar-logo-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.sidebar-collapse-btn {
  width: 32px;
  height: 32px;
  border: 1px solid var(--surface-border);
  background: rgba(148, 163, 184, 0.10);
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.sidebar-collapse-btn:hover {
  background: var(--primary-50);
  color: var(--primary-600);
  border-color: var(--primary-200);
}

[data-theme="dark"] .sidebar-collapse-btn:hover {
  background: var(--bg-hover);
  color: var(--primary-400);
}

/* Sidebar Navigation */
.sidebar-nav {
  flex: 1;
  padding: var(--spacing-md);
  overflow-y: auto;
}

.sidebar-nav ul {
  list-style: none;
}

.sidebar-nav li {
  margin-bottom: var(--spacing-xs);
}

.sidebar-nav li a {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  min-width: 0;
}

.sidebar-nav li a span:last-child {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-nav li a:hover {
  background: var(--bg-hover);
  color: var(--primary-600);
}

[data-theme="dark"] .sidebar-nav li a:hover {
  color: var(--primary-400);
}

.sidebar-nav li a.active {
  background: #dbeafe;
  color: #1d4ed8;
  border: 1px solid #93c5fd;
}

[data-theme="dark"] .sidebar-nav li a.active {
  background: rgba(59, 130, 246, 0.25);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.4);
}

.sidebar-nav li a::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 99px;
  transform: translateY(-50%) scale(0.2);
  opacity: 0;
  background: radial-gradient(circle at 30% 30%, var(--primary-400), var(--primary-600));
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

[data-theme="light"] .sidebar-nav li a::before {
  background: radial-gradient(circle at 30% 30%, var(--primary-400), var(--primary-600));
}

.sidebar-nav li a:hover::before {
  transform: translateY(-50%) scale(1);
  opacity: 0.9;
}

.sidebar-nav li a.active::before {
  transform: translateY(-50%) scale(1);
  opacity: 1;
}

.sidebar-nav li a .material-icons,
.sidebar-nav li a .icon-wrapper {
  font-size: 1.25rem;
  width: 1.25rem;
  height: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  opacity: 0.85;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.sidebar-nav li a:hover .material-icons,
.sidebar-nav li a:hover .icon-wrapper {
  opacity: 1;
  transform: scale(1.1);
}

/* Collapsed Sidebar */
.sidebar.collapsed {
  width: var(--sidebar-collapsed);
}

.sidebar.collapsed .sidebar-header {
  padding: 0 var(--spacing-sm);
  justify-content: center;
}

.sidebar.collapsed .sidebar-logo span,
.sidebar.collapsed .sidebar-nav li a span {
  display: none;
}

.sidebar.collapsed .sidebar-nav li a {
  justify-content: center;
  padding: var(--spacing-md);
}

.sidebar.collapsed .sidebar-nav li a::before {
  display: none;
}

.sidebar.collapsed .sidebar-nav li a::after {
  content: attr(data-title);
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  background: var(--surface-1);
  color: var(--text-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  margin-left: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--surface-border);
  z-index: 1001;
}

.sidebar.collapsed .sidebar-nav li a:hover::after {
  opacity: 1;
  visibility: visible;
}

/* =============================================
   Main Content Area
   ============================================= */
.main-content {
  flex: 1;
  min-width: 0;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition-normal);
}

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

/* Header */
.header {
  height: var(--header-height);
  background: var(--surface-0);
  border-bottom: 1px solid var(--surface-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  padding: 0 var(--spacing-xl);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background var(--transition-normal);
  backdrop-filter: blur(var(--glass-blur));
  min-width: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  min-width: 0;
  flex: 1;
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--surface-border);
  background: rgba(148, 163, 184, 0.10);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  touch-action: manipulation;
  flex-shrink: 0;
}

.menu-toggle:hover {
  background: var(--primary-50);
  color: var(--primary-600);
}

.header-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: var(--tracking-tight);
  position: relative;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 36px;
  height: 2px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--primary-500), rgba(16, 185, 129, 0.55), rgba(245, 158, 11, 0.35));
  opacity: 0.9;
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-shrink: 0;
}

/* Search Box */
.search-box {
  position: relative;
}

.search-input {
  width: 240px;
  padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) 2.5rem;
  background: rgba(148, 163, 184, 0.10);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-500);
  background: var(--surface-1);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.10), 0 14px 40px rgba(15, 23, 42, 0.10);
  width: 280px;
}

.search-box::before {
  font-family: 'Material Icons';
  content: 'search';
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.25rem;
  pointer-events: none;
}

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  border: 1px solid var(--surface-border);
  background: rgba(148, 163, 184, 0.10);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--primary-50);
  color: var(--primary-600);
  transform: rotate(180deg);
}

[data-theme="dark"] .theme-toggle:hover {
  background: var(--bg-hover);
}

/* Admin Menu */
.admin-menu {
  position: relative;
}

.admin-menu-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(148, 163, 184, 0.10);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.admin-menu-btn:hover {
  background: var(--bg-hover);
  border-color: var(--primary-200);
}

.admin-menu-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--spacing-sm);
  background: var(--surface-1);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 60px rgba(15, 23, 42, 0.18);
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
  z-index: 1001;
  overflow: hidden;
  backdrop-filter: blur(var(--glass-blur));
}

.admin-menu:hover .admin-menu-dropdown,
.admin-menu-dropdown:hover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.admin-menu-dropdown a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.admin-menu-dropdown a:hover {
  background: var(--bg-hover);
  color: var(--primary-600);
}

/* =============================================
   Content Area
   ============================================= */
.content {
  flex: 1;
  min-width: 0;
  padding: var(--spacing-xl);
  overflow-y: auto;
  overflow-x: hidden;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}

/* =============================================
   Stats Cards - API Dashboard Style
   ============================================= */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: var(--surface-1);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(var(--glass-blur));
  min-width: 0;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.9), rgba(16, 185, 129, 0.6), rgba(245, 158, 11, 0.4));
  opacity: 0.75;
  transition: opacity var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.14);
  border-color: rgba(59, 130, 246, 0.30);
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
}

.stat-card:nth-child(1) .stat-icon {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(59, 130, 246, 0.05));
  color: var(--primary-600);
}

.stat-card:nth-child(2) .stat-icon {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.05));
  color: var(--accent-success);
}

.stat-card:nth-child(3) .stat-icon {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(245, 158, 11, 0.05));
  color: var(--accent-warning);
}

.stat-card:nth-child(4) .stat-icon {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(6, 182, 212, 0.05));
  color: var(--accent-info);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* =============================================
   Cards & Containers
   ============================================= */
.card,
.chart-container,
.timeline {
  background: var(--surface-1);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  transition: all var(--transition-normal);
  backdrop-filter: blur(var(--glass-blur));
  position: relative;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.card:hover,
.chart-container:hover,
.timeline:hover {
  box-shadow: 0 16px 46px rgba(15, 23, 42, 0.12);
}

.card-header,
.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-light);
  gap: var(--spacing-md);
  min-width: 0;
}

.card-title,
.chart-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.card-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.chart-controls {
  display: flex;
  gap: var(--spacing-sm);
}

/* =============================================
   Buttons
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid var(--surface-border);
  background: rgba(148, 163, 184, 0.10);
  color: var(--text-primary);
  font-family: inherit;
}

.btn:hover {
  background: rgba(59, 130, 246, 0.10);
  border-color: rgba(59, 130, 246, 0.25);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: white;
  border: none;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-primary::after {
  content: '';
  position: absolute;
  inset: -2px;
  background:
    radial-gradient(140px 80px at 20% 0%, rgba(255,255,255,0.35), transparent 55%),
    radial-gradient(160px 90px at 70% 120%, rgba(255,255,255,0.20), transparent 55%);
  opacity: 0.0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.btn-primary:hover::after {
  opacity: 1;
}

.btn-success {
  background: var(--accent-success);
  color: white;
  border: none;
}

.btn-success:hover {
  background: #059669;
}

.btn-danger {
  background: var(--accent-danger);
  color: white;
  border: none;
}

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

.btn-warning {
  background: var(--accent-warning);
  color: white;
  border: none;
}

.btn-warning:hover {
  background: #d97706;
}

/* =============================================
   Form Elements
   ============================================= */
.form-group {
  margin-bottom: var(--spacing-lg);
}

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

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-family: inherit;
  transition: all var(--transition-fast);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

/* 原生下拉：浅色主题下 Windows/部分浏览器需明确前景/背景与 option，避免字色与底色相同 */
.form-group select,
select {
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

option {
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

[data-theme="dark"] option {
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

/* 代码块 / 等宽文本：防止长 URL、JSON 撑破布局 */
pre,
kbd,
samp {
  font-family: var(--font-mono);
  max-width: 100%;
  overflow-x: auto;
  overflow-wrap: anywhere;
  word-break: break-word;
}

code {
  font-family: var(--font-mono);
  overflow-wrap: anywhere;
  word-break: break-word;
}

pre {
  padding: var(--spacing-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

/* =============================================
   Tables
   ============================================= */
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface-1);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

th,
td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border-light);
  overflow-wrap: anywhere;
  word-break: break-word;
  vertical-align: top;
}

th {
  background: rgba(148, 163, 184, 0.10);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

tr {
  transition: background var(--transition-fast);
}

tr:hover {
  background: rgba(59, 130, 246, 0.08);
}

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

/* =============================================
   Tags & Badges
   ============================================= */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.tag-primary {
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary-600);
}

.tag-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-success);
}

.tag-warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-warning);
}

.tag-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-danger);
}

.tag:hover {
  transform: scale(1.05);
}

/* =============================================
   Alerts
   ============================================= */
.alert {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid;
  animation: slideIn 0.3s ease;
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

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

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-success);
  border-color: rgba(16, 185, 129, 0.2);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-warning);
  border-color: rgba(245, 158, 11, 0.2);
}

.alert-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-danger);
  border-color: rgba(239, 68, 68, 0.2);
}

.alert-info {
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent-info);
  border-color: rgba(6, 182, 212, 0.2);
}

/* =============================================
   全局页面弹出提示（page-alert）
   ============================================= */
.page-alert {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
  animation: pageAlertSlideDown 0.3s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: none;
}
.page-alert.success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
  border: none;
}
.page-alert.error {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff;
  border: none;
}
.page-alert.warning {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
  border: none;
}
@keyframes pageAlertSlideDown {
  from { top: -80px; opacity: 0; }
  to { top: 20px; opacity: 1; }
}

/* =============================================
   Timeline
   ============================================= */
.timeline-item {
  position: relative;
  padding-left: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary-500);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

.timeline-item::after {
  content: '';
  position: absolute;
  left: 11px;
  top: 24px;
  width: 2px;
  height: calc(100% - var(--spacing-lg));
  background: var(--border-color);
}

.timeline-item:last-child::after {
  display: none;
}

.timeline-item.success::before {
  background: var(--accent-success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.15);
}

.timeline-item.warning::before {
  background: var(--accent-warning);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.15);
}

.timeline-item.error::before {
  background: var(--accent-danger);
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.15);
}

.timeline-time {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: var(--spacing-xs);
}

.timeline-content {
  font-size: 0.875rem;
  color: var(--text-primary);
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* =============================================
   Loading Indicators
   ============================================= */
.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 2px solid var(--border-color);
  border-top-color: var(--primary-500);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.spinner-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

.loading-spinner.small {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

/* =============================================
   Responsive Design
   ============================================= */
@media (max-width: 1024px) {
  .sidebar {
    width: 220px;
  }

  .main-content {
    margin-left: 220px;
  }

  .search-input {
    width: 180px;
  }

  .search-input:focus {
    width: 220px;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-xl);
  }

  .main-content {
    margin-left: 0;
  }

  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .content {
    padding: var(--spacing-md);
  }

  .header {
    padding: 0 var(--spacing-md);
  }

  .search-box {
    display: none;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .card-header,
  .chart-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .card-actions,
  .chart-controls {
    width: 100%;
    flex-wrap: wrap;
  }

  /* Mobile overlay：与 body::after 装饰层共用伪元素，需关闭混合模式以免发灰/错位 */
  body.sidebar-open::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 999;
    pointer-events: none;
    mix-blend-mode: normal;
    background-image: none;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 1;
    animation: fadeIn 0.2s ease;
  }
}

@media (max-width: 480px) {
  .stat-card {
    padding: var(--spacing-lg);
  }

  .stat-value {
    font-size: 1.75rem;
  }

  .header-title {
    font-size: 1rem;
  }

  .admin-menu-btn > span:not(.material-icons) {
    display: none;
  }

  .admin-menu-btn {
    gap: 0;
    padding: var(--spacing-sm);
  }

  .card,
  .chart-container,
  .timeline {
    padding: var(--spacing-lg);
  }

  th,
  td {
    padding: var(--spacing-sm);
    font-size: 0.75rem;
  }
}

/* =============================================
   Utility Classes
   ============================================= */
.text-primary {
  color: var(--text-primary);
}

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

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

.text-danger {
  color: var(--accent-danger);
}

.font-bold {
  font-weight: 700;
}

.font-medium {
  font-weight: 500;
}

.text-sm {
  font-size: 0.875rem;
}

.text-xs {
  font-size: 0.75rem;
}

.mb-2 {
  margin-bottom: var(--spacing-sm);
}

.mb-4 {
  margin-bottom: var(--spacing-md);
}

.mb-6 {
  margin-bottom: var(--spacing-lg);
}

.mt-2 {
  margin-top: var(--spacing-sm);
}

.mt-4 {
  margin-top: var(--spacing-md);
}

.border-danger {
  border-color: var(--accent-danger);
}

.animate-fade-in {
  animation: fadeIn 0.3s ease;
}

/* ==================== 美化开关样式 ==================== */
.toggle-switch {
  position: relative;
  width: 52px;
  height: 28px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--secondary-300);
  transition: 0.3s;
  border-radius: 28px;
  border: 2px solid var(--border-color);
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 2px;
  bottom: 2px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.toggle-switch input:checked + .toggle-slider {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  border-color: var(--primary-500);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(24px);
}

.toggle-switch input:focus + .toggle-slider {
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.toggle-switch input:disabled + .toggle-slider {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 深色主题适配 */
[data-theme="dark"] .toggle-slider {
  background-color: var(--secondary-700);
  border-color: var(--secondary-600);
}

[data-theme="dark"] .toggle-slider:before {
  background-color: var(--bg-secondary);
}

[data-theme="dark"] .toggle-switch input:checked + .toggle-slider {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  border-color: var(--primary-500);
}

/* 动效偏好：尊重系统“减少动态效果”设置 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}