.specimen {
  --page: #101514;
  --surface: #1c302e;
  --ink: #f1f0dc;
  --muted: #f1f0dc;
  --accent: #f1d95e;
  --line: color-mix(in srgb, var(--ink) 22%, transparent);
  --font-heading: 'IBM Plex Mono', sans-serif;
  --font-body: 'IBM Plex Mono', monospace;
  --space: 8px;
  --measure: 65ch;
  --content: 1240px;
  --radius: 0px;
  --duration: 160ms;
}