:root{
  /* Border radius 2px maximum. No shadows, no gradients — this is a steel manufacturer. */
  --radius-none:0px;
  --radius-sm:2px;
  --radius-max:2px;

  --hairline:1px solid var(--border-hairline);
  --hairline-strong:1px solid var(--border-strong);
  --rule-weight:1px;
  --rule-weight-heavy:2px;
  --focus-ring:2px solid var(--ss-blue);
  --focus-offset:2px;

  --shadow-none:none;
}