:root{
  /* Squared-off geometry. Cards are near-rectangular; only pills and
     icon medallions are fully round. */
  --radius-none:0;
  --radius-xs:2px;
  --radius-sm:4px;
  --radius-md:6px;
  --radius-lg:10px;
  --radius-pill:999px;
  --radius-circle:50%;
  --border-width-hairline:1px; /* @kind spacing */
  --border-width-accent:2px; /* @kind spacing */
}