Accessibility
Reset-level accessibility utilities and interaction constraints.
Accessibility utilities sit below primitives. Components consume them through primitives, not bespoke CSS.Utility class for content that should stay available to assistive technology.
.concrete-visually-hiddenShared focus target geometry and ring language consumed by primitives.
.concrete-focus-targetInteractive controls must preserve a scannable touch/click target.
foundation sizing tokensMotion tokens and primitives must respect reduced-motion behavior.
prefers-reduced-motionColor and border choices should remain visible in forced-colors environments.
system color compatible