Design System
Color
Primitive shades across 8 color families aliased into semantic Content, Background, and Border tokens.
Primitives — Color Families
Blue
Navy
Purple
Lilac
Black
Green
Red
Yellow
White
Semantics — Content
Semantics — Background
Semantics — Border
Typography
Three type scales — Headings, Text, and Caption — each with Desktop and Mobile responsive values shown side-by-side.
Headings
Aa
72px / 80px · -0.01em
Aa
56px / 64px · -0.01em
Aa
64px / 72px · -0.01em
Aa
48px / 56px · -0.01em
Aa
56px / 64px · -0.01em
Aa
40px / 48px · -0.01em
Aa
48px / 56px · -0.01em
Aa
32px / 40px · -0.01em
Aa
40px / 48px · -0.01em
Aa
28px / 36px · -0.01em
Aa
32px / 40px · -0.01em
Aa
24px / 32px · -0.01em
Aa
24px / 32px · -0.01em
Aa
20px / 28px · -0.01em
Aa
20px / 28px · -0.01em
Aa
16px / 24px · -0.01em
Aa
16px / 24px · -0.01em
Aa
12px / 18px · -0.01em
Aa
12px / 18px · -0.01em
Aa
12px / 18px · -0.01em
Text — Regular
Aa
20px / 32px · -0.01em
Aa
20px / 32px · -0.01em
Aa
16px / 24px · -0.01em
Aa
16px / 24px · -0.01em
Aa
14px / 20px · -0.01em
Aa
14px / 20px · -0.01em
Text — Bold
Aa
20px / 32px · -0.01em
Aa
20px / 32px · -0.01em
Aa
16px / 24px · -0.01em
Aa
16px / 24px · -0.01em
Aa
14px / 20px · -0.01em
Aa
14px / 20px · -0.01em
Caption
Aa
20px / 32px · 0em
Aa
20px / 32px · 0em
Aa
16px / 24px · 0em
Aa
16px / 24px · 0em
Aa
14px / 20px · 0em
Aa
14px / 20px · 0em
Aa
12px / 18px · 0em
Aa
12px / 18px · 0em
Layout & Spacing
8-point grid spacing scale (2XS → 10XL) paired with four responsive breakpoints.
Breakpoints
1440px
XL
1024px
L
768px
M
393px
S
Spacing Scale
Borders
Six corner radius values (XS 2 px → Pill 999 px) and three border widths.
Border Radius
circle
50%
pill
999px
l
12px
m
8px
s
4px
xs
2px
none
0px
Border Width
m
2px
s
1.5px
xs
1px
Icons
System Icons
32 iconsButtons
Buttons trigger an action such as submitting a form or showing/hiding an interface component. Use the appropriate variant to communicate hierarchy and importance.
Variants
Primary
Highest emphasisThe single most important action in a view or section. Use for final, flow-completing, or irreversible actions: Save, Confirm, Submit, Publish.
Secondary
Medium emphasisSupporting actions that pair with a primary action — alternatives, reversals, or non-destructive secondary paths: Cancel, Back, Export.
Tertiary
Low emphasisOptional or inline actions that do not compete with the main call-to-action — navigation hints, expandable sections, or supplemental links.
Tertiary Mono
Lowest emphasisSupplemental actions on neutral or non-brand surfaces where brand colour would feel out of place — dismissals, ancillary controls.
Interactive Playground
Props
variant"primary" | "secondary" | "tertiary" | "tertiaryMono""primary"size"L" | "S""L"labelstring"Button"loadingbooleanfalsedisabledbooleanfalseleadingIconReactNodeundefinedtrailingIconReactNodeundefinedCode Snippet
// Primary — main CTA
<Button variant="primary" label="Save changes" onClick={handleSave} />
// Loading state
<Button variant="primary" label="Saving…" loading />
// With leading icon
<Button variant="primary" label="Add item"
leadingIcon={<PlusIcon size={24} />} />Usage
Per-section limits
- Use at most one
primarybutton per section or container. - Pair
primarywithsecondaryortertiaryfor the dismiss action; never pair twoprimarybuttons. tertiaryandtertiaryMonomay appear multiple times, but group them logically and avoid visual clutter.
Do's and Don'ts
✓ Do
- Use primary for the single action that completes or advances the user's current goal.
- Write labels as verb + noun pairs: "Save changes", "Add item", "Export PDF".
- Show the loading state for async operations so users receive immediate feedback.
- Size icons consistently relative to button size: 24 px for L, 16 px for S.
✕ Don't
- Place more than one primary button in the same section or container.
- Use vague labels such as "Click here", "OK", or "Submit" without action-specific context.
- Use icons as the sole visible content — always pair icons with a visible label.
- Disable a button without providing a clear path to resolve the blocking condition.
Input Fields
Input fields let users enter and edit single-line text. A floating label appears inside the field whenever it is focused or has a value.
Design Tokens
Interactive Playground
Props
labelstringundefinedvaluestringundefineddefaultValuestringundefinedonChange(e: ChangeEvent) => voidundefinedplaceholderstringundefinedhintTextstringundefinedmaxLengthnumberundefinederrorMessagestringundefineddisabledbooleanfalseidstringautoCode Snippet
// Basic — label + placeholder + hint
<InputField
label="Email address"
placeholder="you@example.com"
hintText="We'll never share your email."
value={value} onChange={setValue}
/>
// Error state
<InputField
label="Password"
type="password"
errorMessage="Must be at least 8 characters."
/>Usage Rules
✓ Do
- Always provide a label — the floating label ensures the field purpose is visible even after the user starts typing.
- Use hintText for format hints (e.g. 'DD/MM/YYYY') or constraints visible before interaction.
- Use errorMessage for specific, actionable validation feedback.
- Pair maxLength with a counter so users know how much space remains.
✕ Don't
- Rely on placeholder alone as a label — it disappears on focus and fails accessibility.
- Use generic error messages like 'Invalid input' — be precise about what went wrong.
- Use this component for multi-line text — use a Textarea instead.
- Disable a field without providing context about why it is unavailable.
Chips
Chips are compact, non-interactive labels used to surface metadata, categories, or attributes alongside content. Use them to communicate what something is — a skill, a tag, a category — not to trigger an action.
Design Tokens
Interactive Playground
Props
labelstring—size"L" | "S""S"Code Snippet
// Default (S)
<Chip label="AI" />
// Large — hero section
<Chip label="Product Designer" size="L" />
// Inline group
<div style={{ display: "flex", gap: "8px", flexWrap: "wrap" }}>
<Chip label="UX" />
<Chip label="UI Design" />
</div>Usage Rules
✓ Do
- Use chips to label what something is — a skill, a tag, a category.
- Keep labels short (one to three words). Chips truncate poorly; prefer wrapping the group.
- Use size="L" in hero sections and size="S" in cards and compact layouts.
✕ Don't
- Use chips for interactive actions (filters, toggles, dismissal) — they have no interactivity.
- Mix L and S sizes in the same chip group.
- Use chips as navigation or as a substitute for buttons.
Containers
Container is a composable box primitive used as the foundation for cards, callouts, and content sections. It exposes two visual variants and a single size axis — padding — so surfaces compose consistently across the app. Corners are always square.
Variants
Two surface treatments. Use bordered for outlined callouts with no fill, and filled for quiet in-flow blocks.
Sizes
Padding · s · m · l
Interactive Playground
Props
childrenReactNode—variant"bordered" | "filled""bordered"padding"s" | "m" | "l""m"Code Snippet
// Bordered callout (default)
<Container>
content
</Container>
// Filled in-flow block, large padding
<Container variant="filled" padding="l" >
content
</Container>Usage Rules
✓ Do
- Use Container as the foundation for cards, callouts, stat tiles, and content boxes — anything that needs a consistent surface treatment.
- Pick variant by role: bordered for outlined callouts, filled for quiet in-flow blocks.
- Compose by nesting content directly; Container only owns background, border, and padding.
✕ Don't
- Override background or border via className or inline styles — pick a different variant instead.
- Use Container for interactive elements. It has no hover/focus/pressed states. Wrap a Button or link inside if interaction is needed.
- Mix padding scales within a single card group. Pick one padding value per group of sibling containers.
Navigation
The navigation responds to scroll, with a full-screen overlay on mobile and a sticky rail on design system pages.
Scroll Behavior
Menu Types
Page Layout
Case Study Pages
Case study pages combine a full-width hero with a repeatable set of reading-column components.
Content Width
Components
Footer
The footer is identical on every route, sitting directly below the page content.
Principles
Two energy registers
Reactive UI and entrances use calm curves (ease-out, ease-in-out, Material standard). The loader uses high-energy curves (expo-out, expo-in, strong ease-in-out). The two never cross.
Speed scales with intent
Reactive UI (hover, focus, color change) is 100–200ms — fast enough to feel instant. Layout transitions are 200–350ms. Decorative entrances are 500ms. The loader’s phases run 1000–1200ms because they’re the showpiece, not infrastructure.
Page Loader
Three-phase choreography on first visit, followed by the nav sliding in. The nav reuses the loader's expo-out curve at the curtain's duration so the two moments visually link.
Element Entrance
Cards, hero text, list items, sidebar children. One pattern across the codebase.
500ms, ease-out
Stagger. When several elements enter together, each starts 50–100ms after the previous. Mobile menu uses 100ms (few items, more breathing room); sidebar children use 50ms (more items, snappier). Pick the step by item count.
Active Indicator
The sidebar's active-line marker tracks the current section as you scroll or click. Springs between positions instead of fading or sliding — physics gives it a reactive feel that property-based easing can't.
spring { stiffness: 350, damping: 30 }
Click between the items above to see the line spring between positions.