@charset "UTF-8";

:root {
  --bg-primary: #F5F5F7;
  --bg-secondary: #FFFFFF;
  --bg-secondary-rgb: 255, 255, 255;
  --bg-tertiary: rgba(0,0,0,0.04);
  --text-primary: #1D1D1F;
  --text-secondary: #6E6E73;
  --text-tertiary: #86868B;
  --accent: #0071E3;
  --accent-hover: #0077ED;
  --danger: #FF3B30;
  --success: #34C759;
  --warning: #FF9500;
  --border: rgba(0,0,0,0.08);
  --shadow: 0 4px 24px rgba(0,0,0,0.06);
  --chart-grid: rgba(0,0,0,0.08);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --sidebar-width: 240px;
  --sidebar-collapsed-width: 64px;
  --header-height: 56px;
}

html[data-theme="dark"] {
  --bg-primary: #000000;
  --bg-secondary: #1C1C1E;
  --bg-secondary-rgb: 28, 28, 30;
  --bg-tertiary: rgba(255,255,255,0.06);
  --text-primary: #F5F5F7;
  --text-secondary: #98989D;
  --text-tertiary: #636366;
  --border: rgba(255,255,255,0.12);
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --chart-grid: rgba(255,255,255,0.1);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
html { overflow-x: hidden; }
body {
  margin: 0;
  overflow-x: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
}

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

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}