Typography

One fluid type scale (~1.25 / major-third ratio at the top of each range), Archivo for body and display. The web sizes are clamp() ranges; the Rust constants in scale::font_size take each range's upper bound as fixed pixels.

Token	Rust	px (game)	Use
`--font-size-00`	`F00`	12.8	fine print, captions
`--font-size-0`	`F0`	16	body baseline
`--font-size-1`	`F1`	20	lead, sub-nav
`--font-size-2`	`F2`	25	card titles
`--font-size-3`	`F3`	31	section heads
`--font-size-4`	`F4`	39	page heads
`--font-size-5`–`8`	`F5`–`F8`	49–95	display

The scale

F0 · 16The quick brown fox

F1 · 20The quick brown fox

F2 · 25The quick brown fox

F3 · 31The quick brown fox

F4 · 39Arenic

F5 · 49Arenic

F6 · 61Arenic

Families & weights

Sans / body: Archivo, then system-ui fallbacks (--font-sans).
Display: Monument Extended, falling back to the sans stack (--font-display).
Mono: the platform mono stack (--font-mono).

Weights run 100–900 (scale::weight::W1–W9). Bevy renders text in the loaded font's own weight, so in the game the weight scale is documentation until weighted font assets are wired up; on the web the variable font honours all nine.

Line-heights tighten as type grows: 1.5 for body (LH0/LH1) down to 1.0 for the largest display (LH7).