Tokens

Two-tier token architecture: immutable USWDS 3.13 palette tokens (--flex-blue-60) and semantic role-based tokens (--flex-color-accent). Components use semantic tokens only. Retheme by remapping semantic tokens.

Colors

--flex-color-bg

--flex-color-surface

--flex-color-accent

--flex-color-success

--flex-color-error

--flex-color-warning

--flex-color-info

Spacing

--flex-space-xs (4px)

--flex-space-sm (8px)

--flex-space-md (16px)

--flex-space-lg (24px)

--flex-space-xl (32px)