Diagrams

Box is the primitive

Every component is a thin wrapper around Box. One element, traced all the way down.

BoxStackInlineTextFieldTextLinkHeadingSpreadButton

Stack anatomy

Stack sets flex-direction: column and applies a space token as gap. That's it.

itemitemitemspacespaceflex-direction: column

Prop flow

A semantic prop on a component maps to a Box prop, which maps to a CSS token.

space"large"component propgap"large"Box propgap2remCSS

Composition

A card built from Box, Stack, Heading, Text, Button, and Inline — each with a single responsibility.

BoxStackHeadingTextButtonInline

Consistency vs ad hoc

Ordered grid versus scattered chaos.

consistentad hoc

Token cascade

One value, decided once, used everywhere.

tokenuses

Scale

A geometric progression — the spacing or type scale.

Ripple

Change one token, it propagates everywhere.

Composition

Primitives compose into components, into sections, into pages.

pagesectioncomponentprimitive

Alignment

Everything shares the same axis. Variety within a single constraint.

Network

Components are not isolated — they form a traceable graph.

Convergence

Many inputs, one source of truth.

Orbit

Elements at different distances from a centre — hierarchy without rigidity.

Layers

Nothing is truly isolated — things overlap and influence each other.

Rhythm

Variation on a shared baseline. Consistent spacing, different heights.

Golden ratio

Proportion as a principle — rectangles subdivided by φ.

Token tree

Raw value → semantic token → component use. Three levels, one source.

#10b981positivepositiveLightButtonBadgeToastAlertraw valuesemanticcomponent

Semantic naming

The colour is the same. The name is what carries meaning.

#047857literalpositivesemantic

Decide once

Make the decision once. Use it everywhere. Stop making it again.

every timeonce

Constraint

Infinite choices narrowed to a finite, intentional scale.

∞ choices8 tokensconstraints as design

Page layout

Header, sidebar, content, table of contents, footer — the standard grid.

headernavcontenttocfooter

Thread

A continuous line — flow, connection, continuity.

continuity

Balance

One heavy element can balance many light ones.

weightmany

Breathing room

The same elements. The only difference is space.

crowdedbreathing room

Hex grid

Natural repetition — regularity fading toward the edges.

regularity

Wave

A consistent system versus no system — same medium, different character.

consistent systemno system

Focus

Direct attention. Everything else fades.

focus

Fragment vs unified

Disconnected parts versus a coherent whole.

fragmentedunified

Growth

A system that branches — each node built on the one before it.

growth

Bloom

Radial symmetry — everything growing from a single centre.

bloom

Mosaic

Repetition with variation. Pattern from constraint.

mosaic

Arrows

Misaligned effort versus shared direction.

misalignedaligned

Staircase

Progress built incrementally — each step raises the floor.

Venn

Structure and style meet at the component.

structurestylecomponent

Type scale

Seven sizes. One scale. No arbitrary values.

xssmbaselgxl2xl3xl

Spectrum

From minimal to expressive — and where this system sits.

minimalexpressiveour position

Isometric

Three faces, one structure. Depth from a flat plane.

isometric

Pulse

Mostly quiet. Then a signal. That's what good systems feel like to use.

Contour

Nested shapes of increasing intensity — elevation as metaphor.

Clock

Regular positions around a shared centre.

Noise vs grid

Random scatter versus the same count, ordered.

Funnel

Tokens → primitives → components → pages. Each layer refines the last.

tokensprimitivescomponentspages

Sandwich

The system as a stack. Each layer builds on the one below.

CSS variablesSprinklesBoxComponentsPages

Islands vs connected

Isolated pieces versus a unified system.

isolatedconnected

Radar

Six qualities of a design system, charted.

ConsistentAccessibleComposableTypedThemedDocumented

Token matrix

Tone × variant — the full surface area of the token system.

solidlightborderneutralcriticalcautionpositiveinfopromotetone × variant

Pit of success

The right choice is the easy choice. Wrong choices require effort to reach.

wrong choice(requires effort)right choice(natural default)successpit of success

Vanilla Extract

TypeScript in. Atomic CSS classes out. Zero runtime cost.

TSTypeScript.css.tsBuild timeCSSAtomicCSS classeszero runtimeJS bundle

Zero runtime

CSS-in-JS at runtime versus styles resolved at build time.

CSS-IN-JS (TRADITIONAL)componentrendersJSexecutesstylesinjectedpaintruntimeVANILLA EXTRACTbuild →CSS filepaintbuild time4 steps · JS at runtime2 steps · no JS

Tokens

A design decision becomes a named token becomes a CSS variable.

DesigndecisionpositiveToken name--color-positiveCSS variablecolor · space · radius · shadow · typography

Theme contract

One contract. Many themes. Same token names, different values.

contractsame token nameslight themedark themesunshine theme

TypeScript prop enforcement

The type system rejects invalid values before the code runs.

type Tone ="positive" |"critical" | "caution"tone="positive"validtone="green"compile-time errorTypeScript type definition

Sprinkles

Props map to atomic CSS classes. One property. One value. One class.

propspadding="large"display="flex".padding_large.display_flexelementclass="p_lg d_flex"one property per classone value per classatomic css via sprinkles

Box as adapter

One component. Any semantic HTML element. Controlled by the as prop.

any HTML elementBoxas="div"<article><nav><main><section>box as universal adapter

Composition power

Primitives compose into components. Components compose into pages.

Page / Featurecomposed from componentsCardBox + Text + StackFormStack + Button + TextBoxTextStackButtonprimitives compose upward

Constraints as feature

Five deliberate sizes is more powerful than infinite arbitrary ones.

without constraintswith constraintsxssmmdlgxlintentional · predictableconstraints are a feature

A thousand no's

Focus means saying no to a thousand good ideas so you can say yes to one great one.

Iceberg

What they see is the surface. What it took is everything beneath it.

what they seewhat it took

Refinement

From rough to essential — refining until nothing can be removed.

roughsimpleralmostessential

Intersection

Great products live where technology and the humanities meet.

technology humanities

Invisible craft

The back is finished as carefully as the front. Even if no one sees it.

visiblehidden

The last mile

The final 10% takes as long as the first 90%. That's where excellence lives.

0% → 90%90%90% → 100%polish

Subtraction

Perfection is achieved not when there is nothing left to add, but nothing left to remove.

essential1234

Simplicity hides depth

A calm surface. Everything that makes it possible, hidden beneath.

the surface

Precision

The detail most people will never consciously notice — but everyone feels.

4242

Good vs excellent

Excellence is not a different category. It's the same thing, with care applied to every detail.

goodexcellent