:root{
--radius-xs:3px;
--radius-sm:6px;      /* inputs, small chips */
--radius-md:8px;      /* buttons */
--radius-lg:12px;     /* cards */
--radius-xl:18px;     /* feature panels, hero media */
--radius-pill:999px;  /* badges, trust chips */
--border-width:1px;/* @kind other */
--border-width-strong:2px;/* @kind other */
}