Template · stable · v1.0.0 · owner: Site system lead · contract 19 of 20 points (open: figma)
Do and don't
Do: Proof
Rendered by proof-section.tsOpen example: Proof section · Do: Proof Use the full-page example to follow page links.
Do: Engagement
Rendered by proof-section.tsOpen example: Proof section · Do: Engagement Use the full-page example to follow page links.
Don't: Client logos
Rendered by proof-section.tsOpen example: Proof section · Don't: Client logos Use the full-page example to follow page links.
Don't: Two showcases
Rendered by proof-section.tsOpen example: Proof section · Don't: Two showcases Use the full-page example to follow page links.
Rules
| Rule | Why | Check |
|---|---|---|
| One showcase per proof section. | One claim, one proof. | Automated: scripts/site/system/check-pages.ts (showcases per section) |
API
| Prop | Type | Required | Default | What it does |
|---|---|---|---|---|
id | string | Yes | Section id (proof, engagement). | |
heading | html | Yes | The h2. | |
intro | html | Yes | The copy before the showcase. | |
showcase | html | Yes | The showcase and its links. |
Contract details
The full contract: identity, anatomy, variants, states, tokens, layout, motion, accessibility, content, tests
Identity
| Aspect | Value |
|---|---|
| Id | proof-section |
| Layer | Templates |
| Category | section |
| Owner | Site system lead |
| Status | stable |
| Version | 1.0.0 |
| Source | apps/showcase/site/system/templates/proof-section.ts (private repository; the contract and the render function are this one module) |
| Version | Date | Change |
|---|---|---|
| 1.0.0 | 2026-10-26 | Proof section as one module: its markup moved out of the page builder (scripts/site) into the system. |
Use when
- 'We use Loom on our own work first' and 'Value in the first week'. Why: The proof is the showcase itself, so it gets the whole width.
Do not use when
- For a static figure. Why: Job sections hold figures beside copy.
Anatomy
| Part | What it is |
|---|---|
| root | section.l-proof.l-live named by its h2 |
| head | div.l-lead-head: h2 and div.l-lead-copy (shared head shape, EX-SITE-002) |
| showcase | The showcase organism and what follows it |
Made of: heading, text, proof-shift, first-90, arrow-link.
Used in: page-landing.
Variants
| Variant | When | Why |
|---|---|---|
| default | Wherever the page declaration places it. | One shape per job keeps pages predictable. |
States
| State | Rendered or not applicable |
|---|---|
| default | default |
| hover | Not applicable: The proof section is not interactive, so it has no hover state. |
| focus-visible | Not applicable: The proof section does not take focus; links and buttons inside it carry their own focus ring. |
| active | Not applicable: The proof section cannot be pressed. |
| disabled | Not applicable: The proof section has nothing to disable. |
| loading | Not applicable: The proof section is rendered at build time and is complete when the page loads. |
| empty | Not applicable: The proof section is not rendered without content; the builder skips it. |
| error | Not applicable: The proof section shows no data that can fail. |
| current | Not applicable: The proof section has no current item. |
| visited | Not applicable: The proof section is not a link. |
| expanded | Not applicable: The proof section does not open or close. |
Tokens
| Part | Token |
|---|---|
| root.background | --cotton |
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 | Cotton. |
| rhythm | Claim, showcase, links. |
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 | What we prove |
Good: “We use Loom on our own work first.”
Bad: “Trusted by leading brands”
Japanese: From landing.ja.md.
Icons and illustrations
None: this element uses no icon or illustration of its own.
Decisions and exceptions
- D-SITE-008: One ShowcaseFrame for every self-playing element
- EX-SITE-002: The proof section reuses the lead section's head classes (l-lead-head, l-lead-copy) until the section head is one molecule. Owner: Site system lead; expires 2026-11-30.
Usage
4 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.