:root {
  --bg: #f8fbff;
  --bg-card: #ffffff;
  --bg-header: #ffffff;
  --text: #0f172a;
  --text-muted: #475569;
  --border: rgba(15, 23, 42, 0.08);
  --accent: #0B1F5E;
  --accent-light: #eef2ff;
  --accent-dark: #06123A;
  --accent-gradient: linear-gradient(180deg, #1237B8 0%, #0B1F5E 55%, #06123A 100%);
  --green: #16a34a;
  --green-light: #d1fae5;
  --orange: #f59e0b;
  --orange-light: #fef3c7;
  --red: #ef4444;
  --red-light: #fee2e2;
  --purple: #8b5cf6;
  --purple-light: #ede9fe;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 42px rgba(15, 23, 42, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s ease;
}

[data-theme="dark"] {
  --bg: #0f172a;
  --bg-card: #1e293b;
  --bg-header: #1e293b;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --border: #334155;
  --accent: #8ea4ff;
  --accent-light: #172554;
  --accent-dark: #c7d2fe;
  --accent-gradient: linear-gradient(180deg, #3150c7 0%, #1b318b 48%, #101f5a 100%);
  --green-light: #064e3b;
  --orange-light: #78350f;
  --red-light: #7f1d1d;
  --purple-light: #3b0764;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}