Spacing scale — density 1× × 8 px01
space-13.20
space-26.40
space-39.60
space-412.80
space-619.20
space-825.60
Skips 5 and 7 by design. Spacing is the primary tool for hierarchy — if you need a divider, the spacing is probably wrong.
12-column grid02
Geometry03
radius-compact14/2 px
radius-card14 px
radius-button999px
Cards get a moderate radius; buttons are either pill or technical — nothing in between.