One corner scale, from small controls to large surfaces.
The base radius is 0.625rem. Buttons and inputs use rounded-lg, cards rounded-xl. A surface inside another takes the next step down, so corners stay concentric.
rounded-xs–rounded-sm6pxrounded-md8pxrounded-lg10pxrounded-xl14pxrounded-2xl20pxrounded-3xl24pxrounded-4xl28px