Stackmates · Edition 1.0.0

Folio 01

A field manual for
calm app interfaces.

The Stackmates app-interface design system is a small, opinionated set of components — atoms through patterns — built against a single DESIGN.md source of truth. Paper-like surfaces, generous whitespace, one accent. This is the specimen: every tier, ruled and numbered, the way a type foundry catalogues a face.

§00

Specification

The design language in one column. Every component in this manual is measured against these constraints — they are not preferences.

Theme
paper — warm canvas, ink, one accent
Grid
4px base · 8px dominant rhythm
Type
16px body · 32px display ceiling
Depth
borders over shadows · max nest 2
Source
one DESIGN.md · zero raw hex
Motion
80–200ms · reduced-motion first

Index

The catalogue plates

Each tier owns one level of composition. The constraint — a component may only contain components from a lower tier — is what keeps the system legible.

── end of index · §01 and §02 are set in type · §03–§05 in study