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

:root {
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --primary-light: rgba(79,70,229,0.09);
  --success: #10b981;
  --success-light: rgba(16,185,129,0.09);
  --warning: #f59e0b;
  --warning-light: rgba(245,158,11,0.1);
  --orange: #f97316;
  --orange-light: rgba(249,115,22,0.08);
  --blue: #3b82f6;
  --blue-light: rgba(59,130,246,0.09);
  --purple: #8b5cf6;
  --purple-light: rgba(139,92,246,0.09);
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --bg: #ffffff;
  --bg-subtle: #f8fafc;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 4px rgba(0,0,0,0.07), 0 4px 16px rgba(0,0,0,0.05);
  --shadow-lg: 0 4px 24px rgba(0,0,0,0.09), 0 16px 48px rgba(0,0,0,0.07);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --border: #1e293b;
    --bg: #0f172a;
    --bg-subtle: #1e293b;
    --primary-light: rgba(99,102,241,0.18);
    --success-light: rgba(16,185,129,0.18);
    --warning-light: rgba(245,158,11,0.15);
    --orange-light: rgba(249,115,22,0.14);
    --blue-light: rgba(59,130,246,0.14);
    --purple-light: rgba(139,92,246,0.15);
    --shadow: 0 1px 4px rgba(0,0,0,0.4), 0 4px 16px rgba(0,0,0,0.3);
    --shadow-lg: 0 4px 24px rgba(0,0,0,0.5), 0 16px 48px rgba(0,0,0,0.4);
  }
}

html { font-size: 16px; scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }