:root,
html[data-theme="light"] {
  --bg-page: #f5f7fb;
  --bg-card: #ffffff;
  --bg-card-hover: #f8faff;
  --bg-elevated: #f1f5f9;
  --bg-input: #ffffff;
  --border-card: #e9edf4;
  --border-strong: #cbd5e1;
  --shadow-card: 0 16px 60px #183a7010;
  --shadow-card-hover: 0 20px 64px #183a701c;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --brand-primary: #1764ed;
  --brand-primary-hover: #1251c4;
  --brand-primary-soft: rgba(23, 100, 237, 0.1);
  --status-online: #10b981;
  --status-online-bg: rgba(16, 185, 129, 0.12);
  --status-building: #f59e0b;
  --status-building-bg: rgba(245, 158, 11, 0.12);
  --danger-color: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --fav-color: #f59e0b;
  --fav-bg: rgba(245, 158, 11, 0.14);
  --radius-card: 22px;
  --radius-control: 12px;
  --radius-pill: 9999px;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) {
    --bg-page: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #243247;
    --bg-elevated: #0f172a;
    --bg-input: #0f172a;
    --border-card: #334155;
    --border-strong: #475569;
    --shadow-card: 0 16px 60px rgba(0, 0, 0, 0.35);
    --shadow-card-hover: 0 20px 64px rgba(0, 0, 0, 0.5);
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --brand-primary: #1764ed;
    --brand-primary-hover: #3b82f6;
    --brand-primary-soft: rgba(23, 100, 237, 0.22);
    --status-online: #34d399;
    --status-online-bg: rgba(52, 211, 153, 0.15);
    --status-building: #fbbf24;
    --status-building-bg: rgba(251, 191, 36, 0.15);
    --danger-color: #f87171;
    --danger-bg: rgba(248, 113, 113, 0.16);
    --fav-color: #fbbf24;
    --fav-bg: rgba(251, 191, 36, 0.18);
  }
}

html[data-theme="dark"] {
  --bg-page: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #243247;
  --bg-elevated: #0f172a;
  --bg-input: #0f172a;
  --border-card: #334155;
  --border-strong: #475569;
  --shadow-card: 0 16px 60px rgba(0, 0, 0, 0.35);
  --shadow-card-hover: 0 20px 64px rgba(0, 0, 0, 0.5);
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --brand-primary: #1764ed;
  --brand-primary-hover: #3b82f6;
  --brand-primary-soft: rgba(23, 100, 237, 0.22);
  --status-online: #34d399;
  --status-online-bg: rgba(52, 211, 153, 0.15);
  --status-building: #fbbf24;
  --status-building-bg: rgba(251, 191, 36, 0.15);
  --danger-color: #f87171;
  --danger-bg: rgba(248, 113, 113, 0.16);
  --fav-color: #fbbf24;
  --fav-bg: rgba(251, 191, 36, 0.18);
}