:root{
  /* Corners: capsules for anything that carries the 80/20 split; 6px for panels. */
  --radius-capsule:999px;
  --radius-pill:26px;
  --radius-button:20px;
  --radius-chip:13px;
  --radius-panel:6px;
  --radius-step:3px;
  --radius-none:0px;

  --border-width:1px;
  --border:1px solid var(--border-card);
  --border-thin:1px solid var(--border-hairline);
  --border-on-ink:1px solid var(--border-ink);

  /* Flat system: no drop shadows. Depth comes from 1px borders and value steps. */
  --shadow-none:none;

  --split-machine:4; /* @kind other */ /* flex ratio: machine 80% */
  --split-human:1; /* @kind other */ /* flex ratio: human 20% */
  --bar-height:26px;
  --rule-height:4px;
  --mark-size:44px;
}