:root {
  --color-bg: #f6f7fb;
  --color-surface: #ffffff;
  --color-ink: #0f172a;
  --color-muted: #475569;
  --color-border: #e2e8f0;
  --color-accent: #1d4ed8;
  --color-accent-ink: #ffffff;
  --color-accent-soft: #dbeafe;
  --color-dark: #0b1220;
  --color-dark-muted: #cbd5e1;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 18px 50px rgba(15, 23, 42, 0.12);
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --font-sans: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --max: 1120px;
  --focus: 0 0 0 3px rgba(29, 78, 216, 0.35);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #070b12;
    --color-surface: #0f172a;
    --color-ink: #e2e8f0;
    --color-muted: #94a3b8;
    --color-border: #1e293b;
    --color-accent: #60a5fa;
    --color-accent-ink: #0b1220;
    --color-accent-soft: rgba(96, 165, 250, 0.15);
    --color-dark: #020617;
    --color-dark-muted: #cbd5e1;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 18px 50px rgba(0, 0, 0, 0.45);
  }
}