Template · stable · v1.0.0 · owner: Site system lead · contract 19 of 20 points (open: figma)
Do and don't
Do: The UX Ops lead
Rendered by lead-section.tsOpen example: Lead section · Do: The UX Ops lead Use the full-page example to follow page links.
Do: With cells
Rendered by lead-section.tsOpen example: Lead section · Do: With cells Use the full-page example to follow page links.
Don't: Long cell leads
Rendered by lead-section.tsOpen example: Lead section · Don't: Long cell leads Use the full-page example to follow page links.
Don't: Two leads
Rendered by lead-section.tsOpen example: Lead section · Don't: Two leads Use the full-page example to follow page links.
Rules
| Rule | Why | Check |
|---|---|---|
| Exactly one lead section renders on the landing. | One lead message; the other waits in the source. | Automated: scripts/site/landing.ts (warns without the picked lead) |
API
| Prop | Type | Required | Default | What it does |
|---|---|---|---|---|
id | string | Yes | Section id. | |
heading | html | Yes | The h2 (from the Heading atom). | |
copy | html | Yes | The copy. | |
cells | list | Yes | Short cells: lead (six words or fewer) and text. | |
live | html | No | The live showcase. | |
link | html | No | The arrow link. | |
engagement | boolean | No | false | The engagement variant on cotton. |
Contract details
The full contract: identity, anatomy, variants, states, tokens, layout, motion, accessibility, content, tests
Identity
| Aspect | Value |
|---|---|
| Id | lead-section |
| Layer | Templates |
| Category | section |
| Owner | Site system lead |
| Status | stable |
| Version | 1.0.0 |
| Source | apps/showcase/site/system/templates/lead-section.ts (private repository; the contract and the render function are this one module) |
| Version | Date | Change |
|---|---|---|
| 1.0.0 | 2026-10-26 | Lead section as one module: its markup moved out of the page builder (scripts/site) into the system. |
Use when
- The landing's lead message. Why: The owner can swap the lead without touching code.
Do not use when
- On deep pages. Why: Deep pages use the Page body.
Anatomy
| Part | What it is |
|---|---|
| root | section.l-lead.field-teal.on-field named by its h2 |
| head | div.l-lead-head: h2 (display-2) and div.l-lead-copy |
| cells | ul.l-lead-cells: b lead and p text, each topped by a rule |
| live | div.l-lead-live: the showcase with its own heading |
| link | the ArrowLink |
Made of: heading, text, arrow-link, ops-board, dye-field.
Used in: page-landing.
Variants
| Variant | When | Why |
|---|---|---|
| lead on teal | The UX Ops lead. | Colour as structure: the lead is a bold field. |
| engagement | The engagement section without its showcase. | Same spread on cotton. |
States
| State | Rendered or not applicable |
|---|---|
| default | default |
| hover | Not applicable: The lead section is not interactive, so it has no hover state. |
| focus-visible | Not applicable: The lead section does not take focus; links and buttons inside it carry their own focus ring. |
| active | Not applicable: The lead section cannot be pressed. |
| disabled | Not applicable: The lead section has nothing to disable. |
| loading | Not applicable: The lead section is rendered at build time and is complete when the page loads. |
| empty | Not applicable: The lead section is not rendered without content; the builder skips it. |
| error | Not applicable: The lead section shows no data that can fail. |
| current | Not applicable: The lead section has no current item. |
| visited | Not applicable: The lead section is not a link. |
| expanded | Not applicable: The lead section does not open or close. |
Tokens
| Part | Token |
|---|---|
| root.background | --field-bg (teal) |
| cell.rule | --rule-heavy currentColor |
| lead.font | --type-h3 |
Layout
| Aspect | Value |
|---|---|
| breakpoints | Required review at 390, 768, 1024 and 1440 px; execution is not implied by this declaration; columns stack under 768 px; the wrap keeps a 16 px gutter on phones. |
| wrapping | Text wraps; nothing scrolls sideways. |
| textExpansion | Japanese runs 20 to 40% longer; headings break between phrases (jaBreaks) and blocks grow downwards. |
Spacing and rhythm
| Aspect | Value |
|---|---|
| internal | One padding: --section (D-SITE-005). |
| external | Full bleed. |
| rhythm | Cotton before, cotton after, the woven edge at each join. |
Motion
| Aspect | Value |
|---|---|
| None | No intrinsic element animation. The optional claude-entrance consumer profile may translate below-fold structure once (20px, --dur-weave, --ease-enter, --stagger); reduced motion disables it. This preserved baseline entrance is separate from element playback. |
Runtime and reuse
Render-only element; mount any registered child enhancements separately. Preserve required Site CSS, fonts, responsive and locale rules from nativeElement.
Accessibility passport
| Aspect | Value |
|---|---|
| role | region (section) named by its heading |
| name | Its h2, by aria-labelledby |
| keyboard | Links and buttons inside, in reading order. |
| focus | The --focus ring on every link and button inside. |
| screenReader | Read in source order; decorative weaving is aria-hidden. |
| contrast | Ink on cotton 14:1; text on every dye field 4.5:1 or better (checked by check-brand). |
| target | Links and buttons are 44 px tall. |
Content
| Slot | Length | Voice |
|---|---|---|
| heading | 10 words | The lead claim |
| cell lead | 6 words | A fact |
Good: “Tools do not run a design system. People do.”
Bad: “Our revolutionary approach”
Japanese: From landing.ja.md; owner-approved line allowlisted.
Icons and illustrations
None: this element uses no icon or illustration of its own.
Decisions and exceptions
- D-SITE-002: A field is always followed by cotton; two fields never touch
- D-SITE-004: Colour as structure, marks as state
Usage
12 uses across the built pages (measured by npm run site:system).
Tests
| Aspect | Value |
|---|---|
| unit | tests/unit/site-system.test.ts: renders every do and don't example through the registry and checks the classes it owns |
| visual | Not yet: there are no screenshot baselines; the Library page is checked for sideways scroll at 1440 px by tests/site/system.spec.ts |
| a11y | tests/site/system.spec.ts: axe (0 serious or critical) on the element's Library page in light and dark |
| parity | scripts/site/system/check.ts: Library examples are rendered by the same render function the site imports |
Figma
not-yet: The Loom Site Figma library is the last stage of the plan; this element is not mapped yet.