/* §05 Shape & Depth — radius 0–2px only. No shadows, no glows, no glass.
   Depth comes from value, not elevation. Everything decorative is a line. */
:root{
  --radius-none:0px;
  --radius:2px;             /* the maximum radius in the system */
  --hairline:1px;           /* never thicker at any size, never dashed */

  --border-hairline:1px solid var(--brass);
  --border-hairline-quiet:1px solid var(--brass-30);
  --border-on-light:1px solid var(--rule-on-light);
  --border-field:1px solid var(--field-rule);

  --portal-width:1px;       /* the two verticals of the Portal device */
  --portal-inset:40px;
  --colonnade-opacity:0.06/* @kind other */; /* 4–8% */

  --shadow-none:none;       /* there is no shadow system. This is deliberate. */

  --scrim-min:0.55/* @kind other */;
  --scrim-max:0.70/* @kind other */;
}