.specimen {
  --page: #e8dfc9;
  --surface: #f7efdc;
  --ink: #493f2f;
  --muted: #493f2f;
  --accent: #6c6d46;
  --line: color-mix(in srgb, var(--ink) 22%, transparent);
  --font-heading: 'Libre Baskerville', Georgia, serif;
  --font-body: 'IBM Plex Mono', monospace;
  --space: 8px;
  --measure: 65ch;
  --content: 1240px;
  --radius: 0px;
  --duration: 160ms;
}