/* offmode — corner radii. Cards live in the 20–28px band; controls are pills. */
:root{
  --radius-xs:8px;
  --radius-sm:12px;
  --radius-md:16px;   /* FAQ rows, small tiles */
  --radius-lg:20px;   /* photo cards, panels */
  --radius-xl:28px;   /* large feature panels, final CTA */
  --radius-pill:999px;/* buttons, chips, toggles */
  --border-hairline:1px;
}