Design system

Typography

Matter at weight 500 for every heading, Arial at 14px for the interactive chrome, and one scale between them.

Faces

One custom face, one safe fallback.

Matter does the work at every size. Arial covers the interactive chrome where Matter isn't loaded.

Matter — primary

Weights 400 and 500, sizes from 10px to 295px. Weight 500 carries every heading and the oversized kinetic text; weight 400 carries body and UI copy. Substitute Inter, DM Sans or Satoshi for a close geometric-grotesk match.

Arial — fallback

Weight 400 at 14px, line-height 1.43. The safe generic fallback for nav, buttons, hero micro-copy and footer, covering form labels, button text and small utility copy.

Type scale

A minor third, from a 15px base.

Line-height 1.0 above 36px and 1.4 for body — the contrast between them defines the typographic rhythm.

01caption10px · line-height 1.4 · letter-spacing 1.5px
02body16px · line-height 1.4 · tracking normal
03subheading24px · line-height 1.3 · letter-spacing -0.48px
04heading36px · line-height 1 · tracking normal
05heading-lg61px · line-height 1 · letter-spacing -2.44px
06display96px · line-height 1 · letter-spacing -3.84px

Next

Build on the abyss.

Take the surface stack, the two radii and the rules as written, and the interface holds its register without further supervision.