Primitives / specimen 01
Foundation Sheet
A working register of type, rhythm, color, controls, editorial matter and tabular form.
A4 / 210 × 297 mm / token first construction
Typographic register
TYPE.RATIO / 1.414Baskerville carries display work. Charter holds extended reading. The platform mono stack records measurements and operational detail.
Base 16 px / 1 rem
--type-6
Aa
90 px / 5.625 remLeading 0.92
--type-5
A studied proportion
64 px / 4 remLeading 1.05
--type-4
Form follows measure.
45 px / 2.8125 remLeading 1.12
--type-3
The rule establishes order.
32 px / 2 remLeading 1.12
--type-2
A foundation earns trust through repetition, not decoration.
23 px / 1.4375 remLeading 1.12
--type-1
The text face is tuned for long measures, close annotation and practical reading. A 24 px baseline keeps paragraphs, labels and controls in common rhythm.
16 px / 1 remLeading 1.5 / 24 px
--type-00
Specimen / token / measurement / 0123456789
11 px / .6875 remTracking .12 em
Rhythm and color
BASE.UNIT / 4 PXA / Spacing scale
B / Semantic palette
Controls and status
TARGET.MIN / 44 PXDefault / ghost / destructive / hover / focus-visible / disabled
Neutral / selected / neutral / signal badge
Editorial matter
MEASURE.MAX / 66 CHA system becomes visible when every exception has somewhere honest to live.1
Studio memorandum / working note 14
Tabular record
RULE / 1 PX HAIRLINEHairline table / tabular lining numerals / right-aligned measures
| Specimen | Base | Ratio | Tokens | Coverage |
|---|---|---|---|---|
| Type register | 16 px | 1.414 | 7 | 100.0% |
| Rhythm scale | 4 px | 1.500 | 9 | 100.0% |
| Color system | 4 roles | 3 sets | 12 | 100.0% |
| Controls | 44 px | 6 states | 8 | 83.3% |
| Total register | 4 px | 1.414 | 36 | 95.8% |
Figure and rule
FIG.01 / ALIGNMENT FIELDThe signal occupies one point. Structure does the remaining work.
Plot field: --color-surface. Grid: 32 px. Registration square: 96 px. Axis: 1 px.
1 px / --rule-hairline
2 px / --rule-medium
6 px / --rule-heavy
1 + 1 px / 4 px gap