Foundations

Typography

Geist for the interface and Spline Sans Mono for codes, hex values and keyboard hints. 13px base, three weights, and tabular figures wherever numbers line up.

Scale

text-2xl32 on 40Rare display figures

text-xl24 on 32Large figures

text-lg20 on 28Page titles

text-md16 on 24Section titles in documents

text-base14 on 20Emphasised body

text-sm13 on 20Body and controls (base)

text-xs12 on 16Labels, captions, table headers

text-2xs11 on 16Keyboard hints, mono meta

Weights

400 for reading, 500 for emphasis and labels that act, 600 only for the rare heading that needs it.

Regular 400. Retainer renews on 1 October.Medium 500. Heat pump landing pagesSemibold 600. Hydroheat

Figures

Money, hours and counts use tabular numbers so columns align.

Hydroheat£4,620Infrahost$6,000Marlow and Finch£1,200

Mono

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