:root{
  --space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;
  --space-6:32px;--space-7:48px;--space-8:64px;--space-9:96px;--space-10:128px;--space-11:160px;
  --gutter:24px;
  --measure:64ch;           /* max body line length */
  --measure-narrow:46ch;
  --container:1200px;
  --container-narrow:760px;
  --section-y:clamp(64px,10vw,160px); /* @kind spacing */
  --logo-clear-space:1em;   /* = cap height of the wordmark C */
}