/* 威海数字文旅 — 专属Design System V2.0 */
/* 灵感：Linear(暗色)+Stripe(渐变)+海洋文旅(专属) */

:root {
  /* 海洋文旅专属色 */
  --wave-blue: #0077B6;
  --ocean-deep: #023E8A;
  --ocean-dark: #03045E;
  --coral: #FF6B6B;
  --sand: #F4E4C1;
  --seafoam: #48CAE4;
  --sunset-orange: #FF9F43;
  --pearl: #F0F4F8;

  /* 暗色主题（管理端/AI中心/政府端） */
  --bg-canvas: #08090A;
  --bg-panel: #0F1011;
  --bg-surface: #191A1B;
  --bg-elevated: #28282C;
  --text-primary: #F7F8F8;
  --text-secondary: #D0D6E0;
  --text-tertiary: #8A8F98;
  --text-muted: #62666D;
  --border-subtle: rgba(255,255,255,0.05);
  --border-standard: rgba(255,255,255,0.08);
  --border-solid: #23252A;

  /* 亮色主题（游客端） */
  --bg-light: #FFFFFF;
  --bg-light-alt: #F0F4F8;
  --text-dark: #1A2332;
  --text-dark-secondary: #6B7A8D;

  /* 功能色 */
  --ai-purple: #7B61FF;
  --success-green: #00B894;
  --danger-red: #E53935;
  --warning-amber: #FF9F43;
  --data-cyan: #00C2FF;

  /* 品牌渐变 */
  --gradient-ocean: linear-gradient(135deg, #0077B6, #023E8A, #03045E);
  --gradient-sunset: linear-gradient(135deg, #FF9F43, #FF6B6B);
  --gradient-ai: linear-gradient(135deg, #7B61FF, #00C2FF);
  --gradient-card: linear-gradient(135deg, rgba(0,119,182,0.1), rgba(7,62,138,0.05));

  /* 字体 */
  --font-display: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* 圆角系统 */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* 阴影系统 */
  --shadow-none: none;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.2);
  --shadow-glow-blue: 0 0 20px rgba(0,119,182,0.3);
  --shadow-glow-purple: 0 0 20px rgba(123,97,255,0.3);

  /* 间距 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
}

/* 全局 */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-body); -webkit-font-smoothing: antialiased; }

/* 海洋波浪装饰 */
.wave-divider {
  position: relative; height: 60px; overflow: hidden;
  background: linear-gradient(180deg, transparent 0%, rgba(0,119,182,0.05) 100%);
}
.wave-divider::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 40px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 40'%3E%3Cpath fill='%230077B6' fill-opacity='0.08' d='M0,20 C240,0 480,40 720,20 C960,0 1200,40 1440,20 L1440,40 L0,40 Z'/%3E%3C/svg%3E") repeat-x bottom;
  background-size: 720px 40px;
}

/* 玻璃拟态（游客端卡片） */
.glass {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-xl);
}

/* 暗色卡片（管理端） */
.card-dark {
  background: var(--bg-surface);
  border: 1px solid var(--border-standard);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  transition: all 0.2s;
}
.card-dark:hover {
  background: var(--bg-elevated);
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-1px);
}

/* 统计卡片（数字驾驶舱） */
.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-standard);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  position: relative; overflow: hidden;
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-ocean);
}
.stat-card .value { font-size: 32px; font-weight: 600; color: var(--text-primary); letter-spacing: -0.7px; }
.stat-card .label { font-size: 13px; color: var(--text-tertiary); margin-top: var(--space-1); }

/* AI风格按钮 */
.btn-ai {
  background: var(--gradient-ai); color: white;
  border: none; border-radius: var(--radius-sm);
  padding: 10px 24px; font-size: 14px; font-weight: 500;
  cursor: pointer; transition: all 0.2s;
}
.btn-ai:hover { box-shadow: var(--shadow-glow-purple); transform: translateY(-1px); }

/* 海洋风格按钮 */
.btn-ocean {
  background: var(--gradient-ocean); color: white;
  border: none; border-radius: var(--radius-sm);
  padding: 10px 24px; font-size: 14px; font-weight: 500;
  cursor: pointer; transition: all 0.2s;
}
.btn-ocean:hover { box-shadow: var(--shadow-glow-blue); transform: translateY(-1px); }

/* 输入框 - 暗色主题 */
.input-dark {
  background: var(--bg-surface);
  border: 1px solid var(--border-solid);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 10px 14px; font-size: 14px;
  outline: none; transition: border-color 0.2s;
  width: 100%;
}
.input-dark:focus { border-color: var(--wave-blue); box-shadow: 0 0 0 3px rgba(0,119,182,0.15); }
.input-dark::placeholder { color: var(--text-muted); }

/* 侧边栏导航 - 暗色 */
.sidebar-dark {
  width: 240px; background: var(--bg-panel);
  border-right: 1px solid var(--border-subtle);
  display: flex; flex-direction: column;
  position: fixed; left: 0; top: 0; bottom: 0; z-index: 100;
}
.sidebar-dark .logo {
  padding: var(--space-5); font-size: 18px; font-weight: 600;
  color: var(--text-primary); border-bottom: 1px solid var(--border-subtle);
  display: flex; align-items: center; gap: var(--space-2);
}
.sidebar-dark .nav-item {
  padding: 12px var(--space-5); cursor: pointer;
  display: flex; align-items: center; gap: var(--space-3);
  font-size: 14px; color: var(--text-secondary);
  transition: all 0.15s; border-left: 2px solid transparent;
}
.sidebar-dark .nav-item:hover { background: rgba(255,255,255,0.03); color: var(--text-primary); }
.sidebar-dark .nav-item.active { background: rgba(0,119,182,0.1); color: var(--wave-blue); border-left-color: var(--wave-blue); }

/* 主内容区 */
.main-content { margin-left: 240px; min-height: 100vh; }

/* 游客端导航 - 亮色透明 */
.nav-light {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.8); backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  padding: 0 var(--space-8);
  display: flex; align-items: center; height: 64px;
}
.nav-light .logo { font-size: 20px; font-weight: 700; color: var(--wave-blue); }
.nav-light .nav-links { display: flex; gap: var(--space-6); margin-left: auto; }
.nav-light .nav-links a { text-decoration: none; color: var(--text-dark-secondary); font-size: 14px; font-weight: 500; transition: color 0.2s; }
.nav-light .nav-links a:hover { color: var(--wave-blue); }

/* 数据表格 */
table.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data-table th { text-align: left; padding: 12px 8px; border-bottom: 1px solid var(--border-solid); color: var(--text-tertiary); font-weight: 500; font-size: 13px; }
table.data-table td { padding: 12px 8px; border-bottom: 1px solid var(--border-subtle); color: var(--text-secondary); }

/* 标签/状态 */
.badge { display: inline-block; padding: 2px 10px; border-radius: var(--radius-full); font-size: 12px; font-weight: 500; }
.badge-blue { background: rgba(0,119,182,0.15); color: var(--wave-blue); }
.badge-green { background: rgba(0,184,148,0.15); color: var(--success-green); }
.badge-orange { background: rgba(255,159,67,0.15); color: var(--warning-amber); }
.badge-purple { background: rgba(123,97,255,0.15); color: var(--ai-purple); }

/* 海洋特色渐变标题 */
.ocean-heading {
  background: var(--gradient-ocean);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

/* 管理端全局 - 暗色 */
body.dark { background: var(--bg-canvas); color: var(--text-primary); }

/* 游客端全局 - 亮色 */
body.light { background: var(--bg-light); color: var(--text-dark); }

/* 响应式 */
@media (max-width: 768px) {
  .sidebar-dark { width: 60px; }
  .sidebar-dark .nav-item span { display: none; }
  .sidebar-dark .logo span { display: none; }
  .main-content { margin-left: 60px; }
  .nav-light { padding: 0 var(--space-4); }
  .nav-light .nav-links { display: none; }
}