playwright.dev

DESIGN.md

Narrative design system document — paste directly into Claude Code, Cursor, or Bolt.

---
version: alpha
name: playwright.dev
description: "Light product system built on #ffffff with #ffffff as the primary CTA accent. Type anchored in system-ui at 60px / weight 700. Extracted automatically from https://playwright.dev/ — rendered styles via getComputedStyle() + CSS custom properties (token-only values may not be painted)."
narrative: |
  playwright.dev is built on a pure-white canvas (rgb(255,255,255)).
  The system uses rgb(255, 255, 255) as the singular interactive color.
  Sharp 0px corners on CTAs — architectural restraint, engineering precision alongside system-ui as the primary typeface.
  A restrained elevation system (2 distinct shadows) — shadows reserved for the few elements that must lift off the page.
  Motion is a first-class concern — 6 keyframe animations plus transition-driven interactions.

colors:
  background: "#ffffff"
  surface-1: "#f5f5fa"
  surface-2: "#eeeeee"
  ink: "#1c1e21"
  ink-muted: "rgba(28, 30, 33, 0.65)"
  ink-subtle: "#8b949e"
  primary: "#ffffff"
  on-primary: "#111111"
  primary-focus: "#005fcc"
  semantic-error: "#fd9c9f"
  semantic-success: "#008b00"
  semantic-warning: "#e6a700"
  semantic-info: "#87d8f2"

typography:
  display-xl:
    fontFamily: "system-ui"
    fontSize: 60px
    fontWeight: 700
    lineHeight: 1.25
    letterSpacing: 0
  display-lg:
    fontFamily: "Ubuntu, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 60px
    fontWeight: 700
    lineHeight: 1.25
    letterSpacing: 0
  display-md:
    fontFamily: "Ubuntu, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 20px
    fontWeight: 700
    lineHeight: 1.25
    letterSpacing: 0
  headline:
    fontFamily: "Ubuntu, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 16px
    fontWeight: 700
    lineHeight: 1.25
    letterSpacing: 0
  body:
    fontFamily: "Ubuntu, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.65
    letterSpacing: 0
  body-sm:
    fontFamily: "Ubuntu, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 14px
    fontWeight: 500
    lineHeight: 1.65
    letterSpacing: 0
  button:
    fontFamily: "Ubuntu, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 16px
    fontWeight: 500
    lineHeight: 1.65
    letterSpacing: 0

rounded:
  none: 0px
  xs: 4px
  sm: 8px
  md: 14px
  lg: 20px
  xl: 32px
  pill: 9999px

spacing:
  xxs: 2px
  xs: 4px
  sm: 8px
  md: 12px
  lg: 32px
  xl: 48px
  xxl: 88px

components:
  button-light--invert:
    backgroundColor: "{colors.primary}"
    textColor: "#5e6a75"
    typography: "{typography.headline}"
    rounded: "{rounded.sm}"
    padding: 0px 8px
  button-light--invert-2:
    backgroundColor: "{colors.surface-2}"
    textColor: "#333333"
    typography: "{typography.headline}"
    rounded: "{rounded.xs}"
    padding: 3px 10px 3px 8px
  button-light--invert-3:
    backgroundColor: "{colors.primary}"
    textColor: "{colors.ink-muted}"
    typography: "{typography.headline}"
    rounded: "{rounded.none}"
    padding: 8px 16px
  card-standard-card:
    backgroundColor: "transparent"
    typography: "{typography.headline}"
    rounded: "{rounded.none}"
    padding: 0px 16px
  navigation-main-nav:
    backgroundColor: "transparent"
    typography: "{typography.headline}"
    rounded: "{rounded.none}"
    padding: 80px 0px
  code-block-inline-code--pre:
    backgroundColor: "#f6f7f8"
    textColor: "{colors.ink-muted}"
    typography: "{typography.body-sm}"
    rounded: "{rounded.xs}"
    padding: 8px 12px

extracted_at: "2026-06-11T06:14:25.699Z"
completeness: 91
scoreVersion: "v2"

---

# Design System — playwright.dev
> Extracted automatically by Prism from https://playwright.dev
> Date: 2026-06-11
> Viewport: Desktop 1440x900 + Mobile 390x844
> Values are extracted, not hand-written: rendered styles via getComputedStyle() + colors declared in CSS custom properties (token-only values are marked `(token)` and may not be painted).

> ⚠️ **LOW-CONFIDENCE CAPTURE** — this extraction likely sampled an app shell / interactive demo, **not** the marketing page. Signals: button labels look like filenames (Node.js); only 0 card component detected. Treat the component, color and copy values below with caution, and re-extract the canonical marketing URL if fidelity matters.


## 0. Design DNA

**Density**: sparse  |  **Motion**: expressive  |  **Weight**: heavy  |  **Aesthetic**: product-neutral

| Dimension | Value | Signal |
|---|---|---|
| Canvas | neutral | `#ffffff` |
| Type posture | sans-led (Roboto) | "enables reliable web automatio" |
| Color assertion | dual-accent | #ffffff |
| Whitespace | sparse | section rhythm 80px |
| Interaction | expressive | 6 keyframes, 9 transitions |
| Radius language | 8px-rounded | from token scale |

**Prism fingerprint**: `neutral-canvas · sans-display · dual-accent · 8px-rounded · expressive-motion`

> **🤖 TL;DR for AI agents** (read this first — saves you scanning the full doc):
>
> - **Canvas**: `rgb(255,255,255)` is the page background. Every component composits against this.
> - **Accent**: `rgb(255, 255, 255)` for primary CTAs ONLY. Never decorative.
> - **Body type**: 16px (token: `typography.body`). Default for ALL text not in a heading role.
> - **Section rhythm**: 80px between major bands. Card padding: 32px.
> - **Default radius**: 8px on buttons/inputs. Pills (`9999px`) only for icon-buttons or status chips.
>
> **Before generating UI**: import this DESIGN.md, scan §2 (Color Palette) + §4 (Components) + §10 (Agent Guide). Skip §11–12 unless extending.

## 1. Visual Theme & Atmosphere

**Signature:** a gradient wash in the hero — colours: #161b22. This is the brand's most recognizable visual — reproduce it, don't replace it with a generic card or flat panel.

playwright.dev uses a pure-white canvas (`#ffffff`), letting typography, color and imagery carry the visual weight. 

Headlines are set in **system-ui**, a sans-serif display face (the dominant type signature, e.g. "enables reliable web automation for testing, scripting, and " at 60px). Body text is set in **Roboto**. Headlines use weight 700 for confident, assertive presence — the brand wants to be heard. 

Body text reads in Near-Black (`#1c1e21`) — softened from pure black, a small but deliberate detail that lowers reading friction. **Pure White** (`#ffffff`) provides interactive distinction without visual aggression. Elevation comes from a small, deliberate set of shadows (2 distinct), each a multi-layer stack — several blurred layers at varying offsets — used sparingly rather than across the whole UI. 
Motion design uses smooth easing curves for polished state transitions. 

**Key Characteristics:**
- Background: Pure White (`#ffffff`)
- Primary typeface: Ubuntu
- Primary text: Near-Black (`#1c1e21`)
- Accent: Pure White (`#ffffff`)
- Display: 60px weight 700
- Shadow system: 2 distinct elevation levels

## 2. Color Palette & Roles

### Background & Surface
- **Pure White** (`#ffffff`): Page background (primary)
- **Canvas Default Transparent** (`transparent`): Surface / elevated background (CSS var)
- **Whitesmoke** (`#e3e3e7`): Surface / elevated background
- **Off-White** (`#f5f5fa`): Surface / elevated background
- **Off-White** (`#eeeeee`): Surface / elevated background

### Text & Content
- **Near-Black** (`#1c1e21`): Primary body text
- **Fg Muted** (`#8b949e`): Text (CSS var)
- **Fg Subtle** (`#6e7681`): Text (CSS var)
- **Pure Black** (`#000000`): Secondary text
- **Charcoal** (`#333333`): Secondary text

### Accent & Interactive
- **Action List Item Inline Divider** (`rgba(48, 54, 61, 0.48)`): Accent / interactive (CSS var)
- **Action List Item Default Hover Bg** (`rgba(177, 186, 196, 0.12)`): Accent / interactive (CSS var)
- **Action List Item Danger Hover Bg** (`rgba(248, 81, 73, 0.16)`): Accent / interactive (CSS var)
- **Action List Item Danger Hover Text** (`#ff7b72`): Accent / interactive (CSS var)
- **Accent Fg** (`#58a6ff`): Accent / interactive (CSS var)
- **Accent Emphasis** (`#1f6feb`): Accent / interactive (CSS var)
- **Accent Muted** (`rgba(56, 139, 253, 0.4)`): Accent / interactive (CSS var)

### Border & Divider
- **Border Muted** (`#21262d`): Border (CSS var)
- **Border Subtle** (`rgba(240, 246, 252, 0.1)`): Border (CSS var)
- **Light Grey** (`#d5d5d5`): Borders / dividers
- **Light Grey** (`#d4d4d4`): Borders / dividers

### Full Extracted Palette
**19 colors rendered on the page** + **169** more declared in design tokens (CSS custom properties — not necessarily painted). (21 categorized above + 167 additional below.)
Rendered values are read via `getComputedStyle()`; token values come from CSS variable declarations. Third-party logo colors are filtered out.

- `#1a7e1f` — Forest Green
- `#5e6a75` — Dim Gray
- `#5a5e9a` — Slate Gray
- `#45ba4b` — #45ba4b
- `#fafafa` — Off-White
- `#606770` — Dim Gray
- `#f6f7f8` — Off-White
- `#f5f6f7` — Off-White
- `#ebedf0` — Whitesmoke
- `#303846` — Dark Gray
- `#ebf2fc` — Light Gray *(token)*
- `#1e9124` — Forest Green *(token)*
- `#008b00` — #008b00 *(token)*
- `#f1f1f1` — Off-White *(token)*
- `#ccd0d5` — Light Grey *(token)*
- `#003100` — #003100 *(token)*
- `#17711c` — Forest Green *(token)*
- `#fdfdfe` — Pure White *(token)*
- `#80d280` — #80d280 *(token)*
- `#102445` — Navy Blue *(token)*
- `#fd9c9f` — #fd9c9f *(token)*
- `#e6a700` — #e6a700 *(token)*
- `#fb7478` — #fb7478 *(token)*
- `#fb565b` — #fb565b *(token)*
- `#125816` — #125816 *(token)*
- `#26b226` — Success Green *(token)*
- `#bec3c9` — Silver *(token)*
- `#ffdd80` — #ffdd80 *(token)*
- `#dadde1` — Whitesmoke *(token)*
- `#87d8f2` — Baby Blue *(token)*
- `#a7a7a7` — Grey *(token)*
- `#fff8e6` — Warm Cream *(token)*
- *…+135 more in `raw-css.json` (`desktop.allColors`).*

### Gradients & Decorative Fills

- `linear-gradient(170deg, rgb(26, 29, 35) 0%, rgb(43, 49, 55) 40%, rgb(30, 43, 31) 100%)` — (header)

### CSS Custom Properties (Design Tokens)

**Spacing Token**
- `--ifm-menu-link-padding-vertical`: `.375rem`
- `--ifm-spacing-vertical`: `1rem`
- `--ifm-card-horizontal-spacing`: `1rem`
- `--ifm-alert-padding-horizontal`: `1rem`

**Primary Brand Color**
- `--ifm-color-primary-contrast-background`: `#ebf2fc`
- `--ifm-color-primary-lighter`: `#1e9124`
- `--ifm-color-primary-dark`: `#17711c`
- `--ifm-color-primary-contrast-foreground`: `#102445`

**Font Size Token**
- `--ifm-h2-font-size`: `1.5rem`
- `--ifm-blockquote-font-size`: `100%`
- `--ifm-font-size-base`: `100%`
- `--ifm-code-font-size`: `95%`

**Font Weight Token**
- `--ifm-font-weight-semibold`: `500`
- `--ifm-font-weight-normal`: `400`
- `--ifm-font-weight-base`: `400`
- `--ifm-button-font-weight`: `700`

**Success**
- `--ifm-color-success-darker`: `#008b00`
- `--ifm-color-success-contrast-foreground`: `#003100`
- `--ifm-color-success-lightest`: `#80d280`
- `--ifm-color-success-light`: `#26b226`

**Secondary Color**
- `--ifm-color-secondary-contrast-background`: `#fdfdfe`
- `--ifm-color-secondary-darker`: `#c8c9cc`
- `--ifm-font-color-secondary`: `#525860`
- `--ifm-color-secondary`: `#ebedf0`

**Border Radius Token**
- `--ifm-pre-border-radius`: `.4rem`
- `--ifm-pagination-nav-border-radius`: `.4rem`
- `--ifm-card-border-radius`: `calc(.4rem*2)`
- `--ifm-pagination-border-radius`: `.4rem`

**Error / Destructive**
- `--ifm-color-danger-lightest`: `#fd9c9f`
- `--ifm-color-danger-lighter`: `#fb7478`
- `--ifm-color-danger-light`: `#fb565b`
- `--ifm-color-danger-darker`: `#d53035`

**Warning**
- `--ifm-color-warning-dark`: `#e6a700`
- `--ifm-color-warning-lightest`: `#ffdd80`
- `--ifm-color-warning-contrast-background`: `#fff8e6`
- `--ifm-color-warning`: `#ffba00`

**Z-Index Token**
- `--ifm-z-index-overlay`: `400`
- `--ifm-z-index-dropdown`: `100`
- `--ifm-z-index-fixed`: `200`

**Text Color**
- `--ifm-color-content`: `#1c1e21`
- `--ifm-color-content-inverse`: `#fff`
- `--ifm-color-content-secondary`: `#525860`

**Motion Token**
- `--ifm-transition-fast`: `.2s`
- `--ifm-button-transition-duration`: `.2s`
- `--ifm-transition-timing-default`: `cubic-bezier(.08,.52,.52,1)`

**Shadow Token**
- `--ifm-global-shadow-tl`: `0 12px 28px 0 rgba(0,0,0,.2),0 2px 4px 0 rgba(0,0,0,.1)`
- `--ifm-global-shadow-lw`: `0 1px 2px 0 rgba(0,0,0,.1)`
- `--ifm-blockquote-shadow`: `none`
- `--shadow-pop`: `0 4px 12px rgba(0,0,0,.06)`

**Font Family Token**
- `--ifm-font-family-monospace`: `SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace`

**Background**
- `--ifm-menu-color-background-hover`: `rgba(0,0,0,.05)`
- `--ifm-pills-color-background-active`: `rgba(0,0,0,.05)`
- `--ifm-menu-color-background-active`: `rgba(0,0,0,.05)`
- `--color-canvas-default-transparent`: `rgba(13,17,23,0)`

**Border**
- `--color-border-default`: `#30363d`
- `--color-border-muted`: `#21262d`
- `--color-border-subtle`: `rgba(240,246,252,.1)`

**Other tokens**
- `--docsearch-background-color`: `#f5f5fa`
- `--ifm-badge-border-color`: ``
- `--ifm-pre-color`: ``
- `--ifm-table-head-color`: ``
- `--ifm-heading-color`: ``
- `--ifm-scrollbar-track-background-color`: `#f1f1f1`
- `--ifm-color-gray-400`: `#ccd0d5`
- `--ifm-blockquote-color`: ``

## 3. Typography Rules

### Font Families
- **Primary**: `system-ui`
- **Secondary**: `-apple-system`
- **Font 3**: `SFMono-Regular`

### Typography Hierarchy

| Role | Font | Size | Weight | Line Height | Letter Spacing | Notes |
|------|------|------|--------|-------------|----------------|-------|
| Display Hero | system-ui | 60px | 700 | 1.25 | normal | Main headline (h1) |
| Section Heading | Ubuntu | 60px | 700 | 1.25 | normal | Section titles (h1) |
| Sub-heading | Ubuntu | 20px | 700 | 1.25 | normal | Third-level heading (h3) |
| Label Heading | Ubuntu | 16px | 700 | 1.25 | normal | Small heading (H4) |
| Body | Ubuntu | 16px | 400 | 1.65 | normal | Standard reading text |
| Button Large | Ubuntu | 16px | 500 | 1.65 | normal | Button label (16px) |
| Button Large | Helvetica Neue | 16px | 700 | 1.38 | normal | Button label (16px) |
| Link | Ubuntu | 14px | 500 | 1.65 | normal | Link (14px) — Decoration: none |
| Button | Ubuntu | 13.3333px | 400 | normal | normal | Button label (13.3333px) |
| Button Small | Helvetica Neue | 11px | 700 | 1.27 | normal | Button label (11px) |

### Font Weight Scale

CSS custom properties define 9 explicit weight steps:
- `--ifm-font-weight-light`: `300` — Light
- `--ifm-font-weight-normal`: `400` — Regular
- `--ifm-font-weight-base`: `400` — Regular
- `--ifm-font-weight-semibold`: `500` — Medium
- `--ifm-dropdown-font-weight`: `500` — Medium
- `--ifm-button-font-weight`: `700` — Bold
- `--ifm-table-head-font-weight`: `700` — Bold
- `--ifm-heading-font-weight`: `700` — Bold
- `--ifm-font-weight-bold`: `700` — Bold

### Full Font Size Scale

Sizes detected in the design (descending): `60px`, `28px`, `24px`, `20px`, `16px`, `15.20px`, `14px`, `13.33px`, `11px`

> 3 size(s) detected outside the sampled hierarchy (28px, 24px, 15.2px). These appear on elements not in the sampled set — likely additional display sizes, marketing-section overrides, or third-party-widget styles.

## 4. Component Stylings

### Buttons

**Light / Invert**
- Background: `#ffffff` `{colors.primary}`
- Text: `#5e6a75`
- Padding: 0px 8px
- Radius: 8px
- Border: 1px solid rgb(227, 227, 231)
- Font: 16px weight 400
- Use: Bright CTA on dark sections

**Light / Invert**
- Background: `#eeeeee` `{colors.surface-2}`
- Text: `#333333`
- Padding: 3px 10px 3px 8px
- Radius: 4px
- Border: 1px solid rgb(213, 213, 213)
- Font: 16px weight 700
- Use: Bright CTA on dark sections

**Light / Invert**
- Background: `#ffffff` `{colors.primary}`
- Text: `#1c1e21` `{colors.ink-muted}`
- Padding: 8px 16px
- Radius: 0px
- Font: 16px weight 400
- Use: Bright CTA on dark sections

**Subtle**
- Background: `rgba(0, 0, 0, 0.05)`
- Text: `#1a7e1f`
- Padding: 4px 8px
- Radius: 4px
- Font: 14px weight 500
- Use: Quiet action against page bg

### Cards & Containers

**Standard Card**
- Background: `transparent`
- Padding: 0px 16px
- Radius: 0px
- Use: Content containers, listing items

### Navigation

**Main Nav**
- Background: `transparent`
- Padding: 80px 0px
- Radius: none
- Font: 16px weight 400
- Use: Fixed/sticky flex nav — N/A items

### Code Blocks

**Inline Code / Pre**
- Background: `#f6f7f8`
- Text: `#1c1e21` `{colors.ink-muted}`
- Padding: 8px 12px
- Radius: 6px
- Border: 1px solid rgba(0, 0, 0, 0.1)
- Font: 14px weight 400 — SFMono-Regular
- Use: Code samples, CLI commands, syntax highlighting blocks


## 4b. Component Behaviors (State Matrix)

### Interaction State Narrative


*State transitions extracted via Playwright simulation — exact values in the YAML matrix below.*

```yaml
component-behaviors:
  button:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(28, 30, 33)"
  link:
    default:
      bg: "rgb(255, 255, 255)"
      fg: "rgb(28, 30, 33)"
  navLink:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(28, 30, 33)"
  footerLink:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(235, 237, 240)"
    hover:
      bg: "transparent"
      fg: "inherit"
```

**Agent usage**: Validate generated components against this matrix. If your output's `:hover` state changes properties not listed here, you are off-brand.


## 4c. Component Vocabulary (Closed System)

*This brand uses ONLY the following component vocabulary. Introducing new variants without justification breaks the system's tonal coherence.*

### Buttons
- **2 shape(s)** in this system: `Light / Invert`, `Subtle`
- **DO NOT introduce new buttons variants** without justification

### Cards & Containers
- **1 shape(s)** in this system: `Standard Card`
- **DO NOT introduce new cards & containers variants** without justification

### Navigation
- **1 shape(s)** in this system: `Main Nav`
- **DO NOT introduce new navigation variants** without justification

### Code Blocks
- **1 shape(s)** in this system: `Inline Code / Pre`
- **DO NOT introduce new code blocks variants** without justification

## 5. Layout Principles

### Layout Type
**top-nav + content**

### Grid
Single column, centered content

### Max Width
1140px

### Spacing System
Generous spacing — editorial breathing room

| Token | Value |
|-------|-------|
| xxs | 2px |
| xs | 4px |
| sm | 8px |
| md | 12px |
| base | 16px |
| lg | 32px |
| xl | 48px |
| 2xl | 80px |
| 3xl | 88px |

### Border Radius Scale
| Name | Value | Use |
|------|-------|-----|
| None | 0px | No rounding |
| Xs | 4px | Tiny corners (badges, micro elements) |
| Sm | 8px | Buttons, inputs, small elements |
| Md | 14px | Cards, containers |
| Lg | 20px | Large rounded elements, pill segments |
| Xl | 32px | Category strips, featured containers |
| Full | 9999px | Pills, avatars, circular elements |

### Shape Language

| Component | Border Radius |
|-----------|---------------|
| Buttons | `8px` |
| Cards & Containers | `0px` |
| Navigation | `none` |
| Code Blocks | `6px` |
| Page Body | `0px` |

**Shape Personality**: Moderate Rounding — Medium corners (4–12px). Modern SaaS standard, neither sharp nor pill.

**Full Radius Spectrum**: 0px, 4px, 6px, 6.4px, 8px (from `allBorderRadii` scan)


## 5b. Spacing Rhythm Names

**Measured section padding**: bands use ~48px internal vertical padding (up to 80px) — **standard**. (Distinct from the gap *between* sections above.) Reproduce this generous vertical breathing room; cramped spacing is the #1 tell of a cheap clone.

*Named spacing tokens with explicit use cases. Use these names in YOUR code instead of raw pixels for consistency.*

| Name | Value | Use case |
|------|-------|----------|
| **hero** | `88px` | Top/bottom of full-bleed hero sections |
| **section** | `48px` | Between major bands (color change, content shift) |
| **subsection** | `32px` | Within a section, between content groups |
| **card** | `12px` | Card padding, list-item spacing |
| **compact** | `8px` | Form fields, tight clusters, badge padding |
| **micro** | `4px` | Icon-text gap, tag inner padding |

**Agent rule**: NEVER hardcode raw pixel values for spacing in generated UI. Always reference these named tokens (`spacing-rhythm.section`, etc.).

## 5c. Widget & Structure Library

Structural patterns extracted from the page DOM — these are the **blueprints** an agent should follow to reproduce the page architecture (not just CSS values).

**4/8 structural patterns detected.**

### Hero Pattern

- **Composition:** left-aligned — 
- **Viewport coverage:** 225px tall (not full-viewport)
- **Heading:** "Playwright enables reliable web automation for testing, scripting, and AI agents." — 60px left-aligned
- **CTAs:** none detected in hero (unusual — agent should verify)
- **Clone instruction:** Reproduce the **left-aligned** layout. Use the heading font-size token at the documented size. Pair the centered text with the hero’s decorative visual (gradient / SVG / hero image — see §9b), not bare text.

### Navigation Pattern

- **Position:** sticky (stays visible during scroll)
- **Layout:** logo-left-links-left — Logo and links both on the left (CTAs typically right)
- **Height:** 60px
- **Logo:** ✓ present
- **Nav links:** 6 primary items
- **CTAs in nav:** 0 (no buttons — links only)
- **Theme toggle:** ✓ dark/light mode switcher present
- **Clone instruction:** Build a sticky logo left links left navigation. Link-only — no button styling needed.

### Card Grid Pattern

- **Card count:** 3 cards detected
- **Columns (desktop):** 3-up grid
- **Card dimensions:** 440×224px (aspect 1.97:1)
- **Gap:** 0px between cards
- **Content:** ✗ no image
- **Clone instruction:** Build a 3-column grid (desktop) with cards at ~1.97:1 aspect ratio. Text/icon-only cards (no photography).

### Footer Pattern

- **Columns:** 3
- **Links:** 13 total
- **Height:** 302px
- **Includes:** ✗ no newsletter | ✓ social icons |  ✓ copyright
- **Clone instruction:** Build a 3-column footer with ~4 links per column, social media links, and a copyright line.

## 6. Depth & Elevation

| Level | Treatment | Use |
|-------|-----------|-----|
| Flat (Level 0) | No shadow | Page background, content blocks |
| Layered (Level 1) | <br>`rgba(0, 0, 0, 0.1) 0px 1px 2px 0px` | Cards, elevated surfaces |
| Layered (Level 2) | <br>`rgba(0, 0, 0, 0.2) 0px 5px 40px 0px` | Cards, elevated surfaces |

**Shadow Philosophy**: Multi-layered shadow system creating natural, atmospheric depth. Each shadow level combines multiple layers for realistic elevation.

## 7. Motion & Interaction

### Easing System

| CSS Variable | Curve | Semantic Name |
|--------------|-------|---------------|
| `--ease-smooth` | `cubic-bezier(.25,.8,.4,1)` | Custom Ease — Balanced |
| `--ease-fast` | `cubic-bezier(.45,.15,.6,.9)` | Custom Ease — Balanced |
| `--ifm-transition-timing-default` | `cubic-bezier(.08,.52,.52,1)` | Custom Ease — Balanced |

### Duration Scale

| CSS Variable | Value | Tier |
|--------------|-------|------|
| `--ifm-button-transition-duration` | `.2s` | Normal |

### Copy-Paste Transition Snippets

**Color / Background**
```css
transition: color 0.2s cubic-bezier(0.08, 0.52, 0.52, 1);
```

**Opacity**
```css
transition: opacity 0.2s cubic-bezier(0.08, 0.52, 0.52, 1), transform 0.2s cubic-bezier(0.08, 0.52, 0.52, 1), visibility 0.2s cub...;
```

**Background**
```css
transition: background 0.2s;
```

**All Props**
```css
transition: 0.2s cubic-bezier(0.08, 0.52, 0.52, 1);
```

### Keyframe Animation Catalog

| Animation Name | Type | Animated Props | Use Hint |
|----------------|------|----------------|----------|
| `loading-spin_vzvp` | Rotate / Spin | transform | Loading indicator |
| `fade-in` | Fade | opacity | Element entrance |
| `slideDown` | Fade + Move | opacity, transform | Panel / drawer enter |
| `shimmerText` | Custom | background-position-x, background-position-y | Loading placeholder |
| `fadeIn` | Fade | opacity | Element entrance |
| `pulse` | Fade | opacity | Attention / status |

### Motion Fingerprint

- **Speed Character**: Balanced Pacing (median duration: `200ms`)
- **Dominant Easing**: custom cubic-bezier curves
- **Animation Library**: 6 unique animations (6 total including variants)

> This design moves with balanced pacing timing using custom cubic-bezier curves, creating a UI that feels natural and fluid.

## 8. Do's and Don'ts

### Do
- Use Near-Black (`#1c1e21`) for text — not pure black, it's warmer and more readable
- Use Ubuntu as the primary typeface — it defines the brand personality
- Use the extracted shadow patterns for elevation — they are tuned to match the brand palette
- Use Pure White (`#ffffff`) as the primary accent — it's the brand's signature interactive color
- Use 8px border-radius on buttons — the standard corner rounding for interactive elements
- Keep navigation sticky to the top — the design uses a persistent navigation pattern
- Maintain nav height at 60px — consistent vertical space for the navigation bar
- Respect the 4px–48px spacing range — the design uses a wide scale for visual breathing room
- Make the navigation sticky — it stays visible during scroll, signaling content depth
- Include a theme toggle in the nav — dark mode is a first-class feature
- Use a 3-column grid on desktop — density matters for this content type

### Don't
- Don't use pure black (`#000000`) for text — the near-black adds warmth
- Don't substitute with generic sans-serif or serif — the custom font carries the brand
- Don't invent new shadow values — use only the extracted shadow levels
- Don't introduce additional saturated accent colors — the palette is intentionally controlled
- Don't collapse or hide the nav on scroll without an explicit scroll-triggered animation — the design uses fixed nav presence
- Don't put a CTA button in the nav — this design uses links only at the top


## 7b. Enforceable Brand Rules

*Structured Do/Don't with reasoning and validation tests. Agents can programmatically verify generated UI.*

```yaml
rules:
  - id: brand-canvas-001
    type: do
    rule: "Always use the page background `rgb(255,255,255)` as the base canvas"
    why: "Every component is designed to composit against this exact tone"
    test: "document.body.style.backgroundColor === 'rgb(255,255,255)'"
  - id: brand-accent-001
    type: do
    rule: "Reserve `rgb(255, 255, 255)` for primary CTAs and brand-mark signals only"
    why: "Single chromatic assertion device — overuse dilutes meaning"
    test: "querySelectorAll('[style*=\"rgb(255, 255, 255)\"]').length <= 3 per fold"
```

## 9. Responsive Behavior

### Breakpoints
| Name | Width | Key Changes |
|------|-------|-------------|
| Mobile | 420px | Single column, compact spacing |
| Mobile Large | 576px | Expanded mobile layout |
| Tablet | 768px | Multi-column grids begin |
| Tablet | 997px | Multi-column grids begin |
| Large Desktop | 1300px | Maximum content width |
| Large Desktop | 1440px | Maximum content width |

### Token Diff — Desktop vs Mobile

| Element | Property | Desktop | Mobile |
|---------|----------|---------|--------|
| heading | font-size | `60px` | `36px` |
| heading | line-height | `75px` | `45px` |
| button | width | `auto` | `30px` |
| card | width | `440px` | `390px` |

### Collapsing Strategy
- Headlines: 60px → 36px on mobile
- Navigation: horizontal links → hamburger menu on mobile
- Cards: multi-column → stacked vertical on mobile
- Footer: multi-column → stacked single column on mobile

### Touch Targets
- Buttons: 0px padding
- Navigation: adequate spacing between items
- Interactive elements: minimum 44px touch target recommended

### Collapsing Narrative

How the structural patterns adapt from desktop to mobile (extracted from both viewport extractions):

- **Navigation collapses to hamburger** — 6 links visible on desktop, 1 on mobile (the rest hide behind a menu toggle).
- **Card grid: 3-up → 1-up** — cards stack as viewport narrows, becoming a vertical list on mobile.
- **Footer columns collapse:** 3 columns (desktop) → 1 column (mobile).


## 7c. Visual Effects & Dynamic Behavior

*The live/dynamic layer beyond static CSS — reproduce these, not flat substitutes. This is often what separates a faithful clone from a wireframe.*

- **Scroll-driven reveals** — content animates in on scroll (CSS scroll-timeline). Build fade/translate reveal-on-scroll for below-fold bands.

> **Motion fingerprint**: CSS scroll-driven animations

## 9b. Visual Tone & Photography

**Tone:** Mixed photography + illustration

A balanced mix of photographic content and vector graphics. Photos likely carry product/lifestyle context while SVG handles icons, logos, and decorative accents.

**Canonical Brand Image (OG):**
- https://repository-images.githubusercontent.com/221981891/8c5c6942-c91f-4df1-825f-4cf474056bd7
  *This is the image shown when the site is shared on social media — represents the brand visual essence.*

**Aspect Ratio Distribution:**
- Landscape (1.15–2.3): 1 (11%)
- Portrait (<0.87): 0 (0%)
- Square (0.87–1.15): 7 (78%)
- Ultra-wide (>2.3): 1 (11%)

**Media Format Mix:**
- JPG: 1 (typically photographic content)
- PNG: 8 (logos, transparent UI elements, mockups)

**Average rendered image size:** 103×68px
**Above-fold image count:** 0 / 9

**Decorative Patterns Detected:**
- 2 multi-stop linear gradients (mesh-like, 3+ color stops) — the brand leans on rich color transitions for visual depth
- 1 background pattern (non-photo url() backgrounds) — textures/illustrations as backdrops

**Clone instruction for decorative work:** Decorative details are subtle — don't over-style; the design relies on restraint.

**Imagery Guidance for clones:**
- Mix photography and illustration intentionally: photos for product/context, vectors for icons + decorative accents.
- Respect the format split — replacing JPGs with illustrations (or vice versa) will shift the brand tone.

## 10. Agent Prompt Guide

### Quick Reference
- Background: Pure White (`#ffffff`)
- Primary text: Near-Black (`#1c1e21`)
- Accent: Pure White (`#ffffff`)
- Border: Translucent Pure Black (5%) (`rgba(0, 0, 0, 0.05)`)
- Font: Ubuntu
- Body: 16px weight 400

### Example Component Prompts
- "Create a hero section on Pure White background (#ffffff). Headline at 60px Ubuntu weight 700, line-height 1.25, color #1c1e21."
- "Create the primary CTA button: `#ffffff` background, `#1c1e21` text, 9999px border-radius, 10px 20px padding, 700 weight, Ubuntu font."
- "Design a card on `transparent` background. Border: none. Radius: 0px. Shadow: none. Padding: 0px 16px."
- "Build navigation: sticky on `#ffffff`. Ubuntu 16px weight 400 for links."

### Iteration Guide
1. **Canvas**: Set the light canvas to Pure White (`#ffffff`) — every component is composited against this exact base.
2. **Typography**: All type in Ubuntu, weight range 300–700. Never exceed 700 — heavier weights break the brand's tonal restraint.
3. **Accent**: Pure White (`#ffffff`) is the sole interactive color. On hover → Forest Green (`#1a7e1f`). Use CSS transitions, not opacity/brightness filters.
4. **Focus**: Render focus rings in M Tricolor Blue (`#005fcc`) — never hide focus outlines. The ring color is distinct from the accent to avoid ambiguity.
5. **Motion**: All transitions use `cubic-bezier(0.08,0.52,0.52,1)`. Timing: 200ms for micro-interactions, 200ms for layout changes. Never use linear for UI transitions — preserve the brand's easing personality.
6. **Shape**: CTAs at `0px`, cards at `0px`. Apply border-radius from the extracted scale only — don't invent intermediate values.
7. **Spacing**: Use the `--ca-space-*` token scale (4px–48px). All padding, margin, and gap values are multiples from this scale — no magic numbers.
8. **Tokens**: Import from §11 CSS Export (`--ca-*` vars). Never hardcode hex values — always reference a token so theming remains consistent.

## 11. CSS Design Tokens Raw Export

*Copy-paste ready `:root {}` block — all values extracted directly from the live site.*

```css
/* Colors */
:root {
  --ca-primary: #ffffff;
  --ca-surface-1: #f5f5fa;
  --ca-surface-2: #eeeeee;
  --ca-ink-muted: #1c1e21;
  --ca-ink-subtle: #8b949e;
  --ca-on-primary: #111111;
  --ca-primary-focus: #005fcc;
  --ca-semantic-error: #fd9c9f;
  --ca-semantic-success: #008b00;
  --ca-semantic-warning: #e6a700;
  --ca-semantic-info: #87d8f2;
}

/* Typography */
:root {
  --ca-font-primary: "system-ui", system-ui, sans-serif;
  --ca-text-display: 60px;
  --ca-text-heading: 60px;
  --ca-text-body: 16px;
  --ca-text-small: 14px;
  --ca-text-button: 16px;
}

/* Spacing & Radius */
:root {
  --ca-space-xxs: 2px;
  --ca-space-xs: 4px;
  --ca-space-sm: 8px;
  --ca-space-md: 12px;
  --ca-space-base: 16px;
  --ca-space-lg: 32px;
  --ca-space-xl: 48px;
  --ca-space-2xl: 80px;
  --ca-space-3xl: 88px;
  --ca-radius-none: 0px;
  --ca-radius-xs: 4px;
  --ca-radius-sm: 8px;
  --ca-radius-md: 14px;
  --ca-radius-lg: 20px;
  --ca-radius-xl: 32px;
  --ca-radius-full: 9999px;
}

/* Motion */
:root {
  --ca-ease-smooth: cubic-bezier(.25,.8,.4,1);
  --ca-ease-fast: cubic-bezier(.45,.15,.6,.9);
}
```


## 13. Page Structure Skeleton

*The actual layout the source site uses. Reproduce these sections in order to match the site structure.*

```yaml
page-skeleton:
  - section: hero
    tag: div
    height: 3037px
    width: full-bleed
    layout: flex-column justify=normal
    children: 4
    vertical-padding: ~32px
  - section: header
    tag: header
    classes: ["hero", "heroBanner_UJJx"]
    height: 600px
    width: full-bleed
    layout: flex-row justify=normal
    children: 1
    bg-treatment: linear-gradient
    vertical-padding: ~80px (generous)
    padding: "80px 0px"
  - section: feature-section
    tag: div
    classes: ["theme-layout-main", "main-wrapper", "mainWrapper_z2l0"]
    height: 2675px
    width: full-bleed
    layout: flex-column justify=normal
    children: 2
    vertical-padding: ~80px (generous)
  - section: feature-section
    tag: div
    classes: ["container"]
    height: 440px
    width: 1320px
    layout: block
    children: 3
    padding: "0px 16px"
  - section: feature-section
    tag: main
    height: 2075px
    width: full-bleed
    layout: block
    children: 6
    vertical-padding: ~48px
  - section: content-section
    tag: section
    classes: ["pathCards_cPva"]
    height: 352px
    width: full-bleed
    layout: block
    children: 1
    vertical-padding: ~48px
    padding: "48px 0px"
  - section: content-section
    tag: div
    classes: ["container"]
    height: 256px
    width: 1320px
    layout: block
    children: 1
    padding: "0px 16px"
  - section: feature-section
    tag: section
    classes: ["featureSection_efmM", "featureSectionAlt_XlZb"]
    height: 409px
    width: full-bleed
    layout: block
    children: 1
    bg: "rgb(245, 246, 247)"
    vertical-padding: ~48px
    padding: "48px 0px"
  - section: feature-section
    tag: div
    classes: ["container"]
    height: 313px
    width: 1320px
    layout: block
    children: 2
    padding: "0px 16px"
  - section: feature-section
    tag: section
    classes: ["featureSection_efmM"]
    height: 383px
    width: full-bleed
    layout: block
    children: 1
    vertical-padding: ~48px
    padding: "48px 0px"
  - section: feature-section
    tag: div
    classes: ["container"]
    height: 287px
    width: 1320px
    layout: block
    children: 2
    padding: "0px 16px"
  - section: feature-section
    tag: section
    classes: ["featureSection_efmM", "featureSectionAlt_XlZb"]
    height: 313px
    width: full-bleed
    layout: block
    children: 1
    bg: "rgb(245, 246, 247)"
    vertical-padding: ~48px
    padding: "48px 0px"
  - section: feature-section
    tag: div
    classes: ["container"]
    height: 217px
    width: 1320px
    layout: block
    children: 2
    padding: "0px 16px"
  - section: section
    tag: section
    classes: ["crossBrowser_o5jx"]
    height: 294px
    width: full-bleed
    layout: block
    children: 1
    vertical-padding: ~48px
    padding: "48px 0px"
  - section: unknown
    tag: div
    classes: ["container"]
    height: 198px
    width: 1320px
    layout: block
    children: 2
    padding: "0px 16px"
  - section: section
    tag: section
    classes: ["logosSection_gMWS"]
    height: 324px
    width: full-bleed
    layout: block
    children: 1
  - section: unknown
    tag: div
    classes: ["container"]
    height: 323px
    width: 1320px
    layout: block
    children: 1
    padding: "0px 16px"
  - section: footer
    tag: footer
    classes: ["theme-layout-footer", "footer", "footer--dark"]
    height: 302px
    width: full-bleed
    layout: block
    children: 1
    bg: "rgb(48, 56, 70)"
    tone: dark
    vertical-padding: ~32px
    padding: "32px"
  - section: unknown
    tag: div
    classes: ["container", "container-fluid"]
    height: 238px
    width: 1320px
    layout: block
    children: 2
    padding: "0px 16px"
```

**Agent rule**: rebuild sections in this order (sorted by vertical position). Match the layout primitive (grid N-col / flex direction / block).


## 14. Copy Library (Real Content from Source)

*Actual text content extracted from the live page. Use these strings verbatim when reproducing the site — they carry the brand voice.*

```yaml
copy:
  section-headings:
    - "Built for testing"
    - "Chosen by companies and open source projects"
  sub-headings:
    - "Playwright Test"
  ctas:
    - "Node.js"
    - "Search Ctrl K"
    - "Star 90k+"
    - "Star"
  navigation:
    - "Playwright"
    - "Docs"
    - "MCP"
    - "CLI"
    - "API"
    - "Node.js"
    - "TypeScript"
    - "Python"
    - ".NET"
    - "Java"
  footer-links:
    - "Getting started"
```

**Agent rule**: reuse these exact strings when generating UI. Do NOT translate or rephrase — brand voice is preserved through the original wording.


## 15. Asset Inventory (Image Roles & Ratios)

*Image inventory classified by role and aspect ratio. When reproducing the site, allocate this number of assets per role.*

```yaml
assets:
  thumbnail:
    count: 8
    avg-ratio: 1.01
    common-aspect: "~1:1 square"
    sample-alts:
      - "Playwright logo"
      - "VS Code"
      - "Bing"
```

**Agent rule**: when generating placeholder images, match these counts and aspect ratios. Use neutral placeholder backgrounds for `product` (e.g. `#f5f5f5`), full-color photography hints for `hero` and `editorial`.


## 16. Component HTML Templates

*Suggested HTML markup for reproducing the key components — based on what was detected in the source DOM.*

### Button (primary action)
```html
<button class="btn btn-primary">
  Node.js
</button>
```
_Source pattern detected: padding `0px` · radius `0px` · weight `500`_

**Agent rule**: use these markup skeletons as the structural baseline. Apply tokens from §2-3 for visual styling.


## 17. Content Architecture & Resources (Links by Purpose)

*The page's links classified by purpose — the information architecture to reproduce. Categories, featured images, devices and projects are extracted from the rendered DOM, not guessed.*

**By purpose:** **nav** 5 · **cta** 1 · **docs** 10 · **social** 11 · **footer** 13 · **other** 5

**Primary actions (conversion path):**
- Primary call-to-action — "Get started" (the conversion path) → `https://playwright.dev/docs/intro`

**Signals:** 19/45 links carry a featured image · device mockups detected: tablet ×1 · dominant link roles: footer-link (22), inline-link (14), navigation (5).


---
## Extraction Completeness: 91/100 (A)

| Category | Score | Max | Detail |
|----------|-------|-----|--------|
| Colors & Palette | 25 | 25 | 21 named colors |
| Typography | 20 | 20 | 10 roles defined |
| Components | 16 | 20 | 4 specs extracted |
| Motion & Interaction | 15 | 15 | Keyframes, easing vars |
| CSS Custom Properties | 10 | 10 | 779 vars |
| Responsive Breakpoints | 5 | 5 | 6 breakpoints |
| Variable Fonts | 0 | 5 | None detected |

## 12. Known Gaps & Confidence

Explicit list of what this extraction could NOT capture. Agents should not invent values for these — either skip the feature or use the documented baseline + heuristic fallback.

*Auto-detected extraction limitations — understand before building:*

- **Sparse component extraction** — fewer than 5 component types detected. Highly dynamic sections (modals, datepickers, carousels) require interaction to render and are not captured in a static pass.

| Category | What's missing | Fallback strategy |
|----------|----------------|-------------------|
| **Hero imagery** | No dominant hero image detected above the fold | Use the canonical brand visual from §9b (OG image) for hero composition |
| **Form inputs** | No text input fields detected on this page | Use the documented border-radius + accent border on focus; 12-16px padding inside |

### Per-section confidence

| Section | Confidence | Reason |
|---------|------------|--------|
| §1 Visual Theme | High | Body bg extracted via getComputedStyle() |
| §2 Colors | High | 779 CSS vars (semantic naming requires ≥20 for high) |
| §3 Typography | High | 10 typography roles inferred |
| §4 Components | Medium | 4 component variants captured |
| §7 Motion | High | Keyframes + transitions |
| §8 Do's/Don'ts | High | 17 rules generated; design-decisions.json has evidence per rule |
| §9 Responsive | High | 6 breakpoints detected |
| §9b Photography | Medium | 9 images, hero not detected |

## 11.1 CSS Implementation Guide (CSS Interception Engine v2.15+)

*Ready-to-use CSS from Prism's CSS Interception Engine — intercepted directly from the site's CSS files (bypasses CORS). Copy-paste into your `<style>` block.*

### Keyframe Animations (Intercepted from CSS)

**6 @keyframes found** — these are the real animation definitions:

```
@keyframes loading-spin_vzvp { ... }
@keyframes fade-in { ... }
@keyframes slideDown { ... }
@keyframes shimmerText { ... }
@keyframes fadeIn { ... }
@keyframes pulse { ... }
```

<details><summary>Full keyframes CSS (6 animations)</summary>

```css
@keyframes loading-spin_vzvp{to{transform:rotate(360deg)}}
@keyframes fade-in{0%{opacity:0}
@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}
@keyframes shimmerText{0%{background-position:200% 0}
@keyframes fadeIn{0%{opacity:0}
@keyframes pulse{0%,to{opacity:.3}50%{opacity:.6}}
```
</details>

### Brand Gradient Palette

**2 complex gradients captured** from the site's CSS. The first few are the most prominent visual decorations:

```css
/* Gradient 1 */
background: linear-gradient(170deg,#1a1d23 0%,#2b3137 40%,#1e2b1f 100%);

/* Gradient 2 */
background: linear-gradient(90deg,#e0e3e8 0%,var(--docsearch-muted-color);

```

### Hover State CSS (Intercepted)

**1 hover rule lines** captured from CSS files. Key interactive transitions from real CSS (not inferred):

```css
a:hover{color:var(--ifm-link-hover-color);-webkit-text-decoration:var(--ifm-link-hover-decoration);text-decoration:var(--ifm-link-hover-decoration)}

.text--no-decoration,.text--no-decoration:hover{-webkit-text-decoration:none;text-decoration:none}

.alert .close:hover,.alert .close:focus{opacity:1}

.alert a:hover{text-decoration-thickness:2px}

.breadcrumbs__link:link:hover,.breadcrumbs__link:visited:hover,area[href].breadcrumbs__link:hover{background:var(--ifm-breadcrumb-item-background-active);-webkit-text-decoration:none;text-decoration:none}

.breadcrumbs__link:any-link:hover{background:var(--ifm-breadcrumb-item-background-active);-webkit-text-decoration:none;text-decoration:none}

.button:hover{color:var(--ifm-button-color);-webkit-text-decoration:none;text-decoration:none}

.button--outline:hover{--ifm-button-background-color:var(--ifm-button-border-color)}

.button--outline:hover,.button--outline:active,.button--outline.button--active{--ifm-button-color:var(--ifm-font-color-base-inverse)}

.button--link:hover,.button--link:active,.button--link.button--active{color:var(--ifm-link-hover-color);-webkit-text-decoration:var(--ifm-link-hover-decoration);text-decoration:var(--ifm-link-hover-decoration)}

.button.button--secondary.button--outline:not(.button--active):not(:hover){color:var(--ifm-font-color-base)}

:where(.button--primary):not(.button--outline):hover{--ifm-button-background-color:var(--ifm-color-primary-dark);--ifm-button-border-color:var(--ifm-color-primary-dark)}

:where(.button--secondary):not(.button--outline):hover{--ifm-button-background-color:var(--ifm-color-secondary-dark);--ifm-button-border-color:var(--ifm-color-secondary-dark)}

:where(.button--success):not(.button--outline):hover{--ifm-button-background-color:var(--ifm-color-success-dark);--ifm-button-border-color:var(--ifm-color-success-dark)}

:where(.button--info):not(.button--outline):hover{--ifm-button-background-color:var(--ifm-color-info-dark);--ifm-button-border-color:var(--ifm-color-info-dark)}

:where(.button--warning):not(.button--outline):hover{--ifm-button-background-color:var(--ifm-color-warning-dark);--ifm-button-border-color:var(--ifm-color-warning-dark)}

:where(.button--danger):not(.button--outline):hover{--ifm-button-background-color:var(--ifm-color-danger-dark);--ifm-button-border-color:var(--ifm-color-danger-dark)}

.table-of-contents__link:hover,.table-of-contents__link:hover code,.table-of-contents__link--active,.table-of-contents__link--active code{color:var(--ifm-color-primary);-webkit-text-decoration:none;text-decoration:none}

.close:hover{opacity:.7}

.dropdown--hoverable:hover .dropdown__menu,.dropdown--show .dropdown__menu{opacity:1;pointer-events:all;visibility:visible;transform:translateY(-1px)}
```

> **Note**: All values above are extracted from the live site's CSS files. The font files are saved locally by Prism and embedded in the output HTML. Use them as-is for maximum fidelity.

## 11.2 Measured Reality (CDP Engine)

Captured directly from Chrome's engine across **all 360 rendered nodes** — not a sample. These are the values the page *actually paints*, weighted by how often they appear.

### Real Responsive Breakpoints
**10 breakpoints** read from the live `@media` rules (not guessed):
`420px` · `576px` · `768px` · `966px` · `996px` · `997px` · `1200px` · `1300px` · `1400px` · `1440px`

### Measured Design Scale
**Type scale by usage** (× = paint count): `16px`×293 · `20px`×24 · `14px`×18 · `15.2px`×8 · `28px`×6 · `60px`×4 · `13.3333px`×3 · `24px`×2

**Radius scale** (× = paint count): `4px`×15 · `6.4px`×9 · `6px`×6 · `8px`×3 · `50%`×1

**Weights** (× = paint count): `400`×255 · `700`×64 · `500`×34 · `600`×6

**Layout gaps** (× = paint count): `20px`×1

**Elevation (real shadows)**:
```css
rgba(0, 0, 0, 0.1) 0px 1px 2px 0px
rgba(0, 0, 0, 0.2) 0px 5px 40px 0px
```

### Provenance — measured styles on key elements
Read from the live CSSOM (includes runtime-injected CSS). This is *what actually styles the page*, by element:

```css
header { background-color:var(--ifm-hero-background-color); color:var(--ifm-hero-text-color) }
header { color:#fff; background:linear-gradient(170deg,#1a1d23 0%,#2b3137 40%,#1e2b1f 100%); background-color:initial }
nav { background-color:var(--ifm-navbar-background-color); box-shadow:var(--ifm-navbar-shadow) }
h1 { font-size:var(--ifm-h1-font-size) }
h1 { font-size:3rem }
h1 { font-size:60px }
h2 { font-size:var(--ifm-h2-font-size) }
h2 { font-size:28px }
button { color:inherit; background:0 0; font-family:inherit; background-color:initial }
a { color:var(--ifm-link-color); transition:color var(--ifm-transition-fast)var(--ifm-transition-timing-default) }
a { color:var(--ifm-color-emphasis-900); background-color:var(--ifm-background-surface-color) }
```

> Selectors normalised to their semantic element — source class names are often build-hashed (`.bgDIHX`) and not reusable. The declarations + CSS vars are the transferable part.

---
*Generated by Prism — automated Playwright extraction + design analysis.*
*Source: https://playwright.dev | 2026-06-11T06:14:26.201Z*
*Values extracted via getComputedStyle() (rendered) + CSS custom properties (tokens, marked `(token)`). Token-only values may not be painted — verify against the live site before shipping.*