:root {
  color-scheme: light;
  --bg: #f2f5f9;
  --surface: #ffffff;
  --surface-2: #f7f9fc;
  --surface-3: #edf1f7;
  --text: #101828;
  --text-muted: #5b6472;
  --text-faint: #7b8494;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --primary: #1d4ed8;
  --primary-hover: #1e40af;
  --primary-soft: #e8eefc;
  --accent: #15803d;
  --accent-soft: #e6f6ec;
  --danger: #b42318;
  --danger-soft: #fdecea;
  --warning: #92400e;
  --warning-soft: #fef3c7;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 8px 24px rgba(16, 24, 40, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --font: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
  --max-width: 1280px;
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --bg: #0d1117;
  --surface: #161c26;
  --surface-2: #1b2230;
  --surface-3: #232c3d;
  --text: #e6edf3;
  --text-muted: #9fadbc;
  --text-faint: #8494a5;
  --border: #2a3444;
  --border-strong: #3a4658;
  --primary: #7aa2f7;
  --primary-hover: #9ab8ff;
  --primary-soft: #1c2740;
  --accent: #57d38c;
  --accent-soft: #14301f;
  --danger: #f87171;
  --danger-soft: #3a1c1c;
  --warning: #fbbf24;
  --warning-soft: #3a2d12;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.45);
}