:root {
  color-scheme: dark;

  --color-page: #03142f;
  --color-page-deep: #020d20;
  --color-panel: #0b2a57;
  --color-panel-soft: #123769;
  --color-surface: #f5f7fb;
  --color-surface-muted: #e8edf5;
  --color-text: #ffffff;
  --color-text-muted: #b9c8df;
  --color-ink: #07152e;
  --color-ink-muted: #53637a;
  --color-accent: #4f72ff;
  --color-accent-ink: #3156d3;
  --color-lime: #c8ff2e;
  --color-border: rgb(185 200 223 / 22%);
  --color-border-light: rgb(7 21 46 / 14%);

  --font-sans: Inter, Pretendard, "SUIT Variable", "Noto Sans KR", -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Arial Narrow", "Roboto Condensed", Inter, Pretendard,
    "Noto Sans KR", sans-serif;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;

  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --content-max: 80rem;
  --page-gutter: clamp(1.25rem, 4vw, 4rem);
  --focus-ring: 0 0 0 3px var(--color-page), 0 0 0 6px var(--color-lime);
  --transition-fast: 180ms ease;
  --transition-smooth: 260ms cubic-bezier(0.16, 1, 0.3, 1);
}