chance.co

DESIGN.md

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

---
version: alpha
name: chance.co
description: "Light product system built on #e0ddee with #f7ff01 as the primary CTA accent. Type anchored in Bricolage Grotesque at 100px / weight 800. Extracted automatically from https://chance.co/ — every value from getComputedStyle(), no approximation."
narrative: |
  chance.co is built on a mid-light canvas (rgb(224, 221, 238)).
  The system uses rgb(247, 255, 1) as the high-saturation accent for primary actions.
  Sharp 0px corners on CTAs — architectural restraint, engineering precision alongside Bricolage Grotesque as the primary typeface.

colors:
  background: "#e0ddee"
  surface-1: "#f7f5ff"
  surface-2: "rgba(247, 245, 255, 0)"
  ink: "#181f18"
  ink-muted: "rgba(24, 31, 24, 0.65)"
  ink-subtle: "#2c2f31"
  primary: "#f7ff01"
  on-primary: "#111111"
  primary-hover: "#8ebdff"
  hairline: "#e0ddee"
  primary-focus: "#181f18"

typography:
  display-xl:
    fontFamily: "Bricolage Grotesque"
    fontSize: 100px
    fontWeight: 800
    lineHeight: 0.8
    letterSpacing: 0
  display-md:
    fontFamily: "Bricolage Grotesque"
    fontSize: 40px
    fontWeight: 800
    lineHeight: 1
    letterSpacing: -1px
  body:
    fontFamily: "Bricolage Grotesque"
    fontSize: 14px
    fontWeight: 400
    lineHeight: 1.43
    letterSpacing: 0
  caption:
    fontFamily: "Post"
    fontSize: 24px
    fontWeight: 400
    lineHeight: 0.83
    letterSpacing: 0
  button:
    fontFamily: "Bricolage Grotesque"
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.25
    letterSpacing: 0

rounded:
  none: 0px
  xs: 4px
  sm: 8px
  md: 12px
  lg: 18px
  xl: 26px
  pill: 9999px

spacing:
  xxs: 2px
  xs: 4px
  sm: 8px
  md: 16px
  lg: 156px
  xl: 32px
  xxl: 64px
  section: 80px

components:
  button-ghost:
    backgroundColor: "{colors.surface-2}"
    textColor: "#222222"
    typography: "{typography.button}"
    rounded: "{rounded.none}"
  button-light--invert:
    backgroundColor: "#ffffff"
    textColor: "{colors.primary-focus}"
    typography: "{typography.body}"
    rounded: "{rounded.xs}"
    padding: 12px 24px
  button-secondary:
    backgroundColor: "{colors.primary-focus}"
    textColor: "#ffffff"
    typography: "{typography.button}"
    rounded: "{rounded.xs}"
    padding: 12px 24px
  card-standard-card:
    backgroundColor: "{colors.surface-2}"
    typography: "{typography.button}"
    rounded: "{rounded.none}"
  navigation-main-nav:
    backgroundColor: "{colors.surface-2}"
    typography: "{typography.body}"
    rounded: "{rounded.none}"
    padding: 0px 64px
  pricing-card-default-tier:
    backgroundColor: "{colors.surface-2}"
    textColor: "#ffffff"
    typography: "{typography.body}"
    rounded: "{rounded.none}"
  cta-banner-full-width-cta:
    backgroundColor: "{colors.surface-2}"
    textColor: "{colors.primary-focus}"
    typography: "{typography.body}"
    rounded: "{rounded.none}"
    padding: 156px 0px 0px
  testimonial-quote-card:
    backgroundColor: "{colors.surface-2}"
    textColor: "{colors.primary-focus}"
    typography: "{typography.body}"
    rounded: "{rounded.none}"
  alert-alert-banner:
    backgroundColor: "{colors.surface-1}"
    textColor: "{colors.primary-focus}"
    typography: "{typography.body}"
    rounded: "{rounded.xs}"
    padding: 32px
  alert-alert-banner:
    backgroundColor: "{colors.surface-2}"
    textColor: "{colors.primary-focus}"
    typography: "{typography.body}"
    rounded: "{rounded.none}"

extracted_at: "2026-05-30T20:38:40.677Z"
completeness: 90
scoreVersion: "v2"

---

# Design System — chance.co
> Extracted automatically by Clone Architect from https://www.chance.co
> Date: 2026-05-30
> Viewport: Desktop 1440x900 + Mobile 390x844
> Every value in this file comes from real getComputedStyle() — no approximation.

> **🤖 TL;DR for AI agents** (read this first — saves you scanning the full doc):
>
> - **Canvas**: `rgb(224, 221, 238)` is the page background. Every component composits against this.
> - **Accent**: `rgb(247, 255, 1)` for primary CTAs ONLY. Never decorative.
> - **Body type**: 16px (token: `typography.body`). Default for ALL text not in a heading role.
> - **Section rhythm**: 48px between major bands. Card padding: 156px.
> - **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

chance.co sits on a light gray canvas (`#e0ddee`), a neutral foundation calibrated for sustained reading and component contrast. 

Typography is anchored in **Bricolage Grotesque**. Headlines use weight 800 for confident, assertive presence — the brand wants to be heard. 

Body text reads in Near Black (`#181f18`) — softened from pure black, a small but deliberate detail that lowers reading friction. **#f7ff01** (`#f7ff01`) is the single high-saturation color in the system — it earns its presence only on interactive elements, making CTAs and links the unmistakable focal points against the otherwise neutral palette. Elevation is built from multi-layer shadow stacks — each level combines several blurred layers at varying offsets to simulate the way light actually falls on stacked surfaces, not the simulated drop-shadow of cheap interfaces. 
Motion design uses smooth easing curves for polished state transitions. The site uses a variable font with WDTH + OPSZ + WGHT axes, enabling precise weight/width control across the type hierarchy. 

**Key Characteristics:**
- Background: Light Gray (`#e0ddee`)
- Primary typeface: Post
- Primary text: Near Black (`#181f18`)
- Accent: #f7ff01 (`#f7ff01`)
- Display: 100px weight 800
- Shadow system: 5 distinct elevation levels
- Custom fonts loaded: Post, Bricolage Grotesque, BricolageGrotesque

## 2. Color Palette & Roles

### Background & Surface
- **Light Gray** (`#e0ddee`): Page background (primary)
- **Transparent** (`transparent`): Surface / elevated background
- **Pure White** (`#ffffff`): Surface / elevated background
- **Ghost White** (`#f7f5ff`): Surface / elevated background
- **#f7ff01** (`#f7ff01`): Surface / elevated background

### Text & Content
- **Near Black** (`#181f18`): Primary body text
- **Pure Black** (`#000000`): Secondary text
- **Charcoal** (`#333333`): Secondary text
- **Warm Brown** (`#222222`): Secondary text
- **#7f0000** (`#7f0000`): Secondary text

### Accent & Interactive
- **Baby Blue** (`#8ebdff`): Interactive / accent
- **Hot Pink** (`#f66bae`): Interactive / accent
- **Slate Gray** (`#675c99`): Interactive / accent
- **Royal Blue** (`#4a6fde`): Interactive / accent
- **#c00c63** (`#c00c63`): Interactive / accent
- **#636600** (`#636600`): Interactive / accent
- **#1c2977** (`#1c2977`): Interactive / accent

### Border & Divider
- **Silver** (`#c4c6ca`): Borders / dividers
- **Light Gray** (`#e4eaed`): Borders / dividers
- **Translucent Light Gray (10%)** (`rgba(221, 221, 221, 0.1)`): Borders / dividers

### Full Extracted Palette
42 distinct colors detected on the live page (20 categorized above + 22 additional below). Every value is a real `getComputedStyle()` color — no approximation.

- `#515355` — Slate
- `#e2efff` — Light Gray
- `#727272` — Stone
- `#fee7f2` — Warm Cream
- `#efedf7` — Light Gray
- `#1f181b` — Near Black
- `#a3a3a3` — Cool Gray
- `#df011a` — #df011a
- `#5f6267` — Dim Gray
- `#5e6266` — Dim Gray
- `#f0f4f7` — Light Gray
- `#30363c` — Charcoal
- `#2c2f31` — Charcoal
- `#eaeff2` — Light Gray
- `#faff60` — Secondary Yellow
- `#fbb7d8` — Pink
- `#d5dee2` — #d5dee2
- `#d4dae0` — #d4dae0
- `#dee4e9` — Light Gray
- `#e9eff4` — Light Gray
- `#efecfb` — Light Gray
- `#667481` — Slate Gray

### CSS Custom Properties (Design Tokens)

**Motion Token**
- `--cc-modal-transition-duration`: `.25s`

**Border Radius Token**
- `--cc-btn-border-radius`: `.4rem`
- `--cc-pm-toggle-border-radius`: `4em`
- `--cc-modal-border-radius`: `.5rem`

**Z-Index Token**
- `--cc-z-index`: `2147483647`

**Spacing Token**
- `--padding-top`: `9.25rem`

**Other tokens**
- `--cc-cookie-category-expanded-block-bg`: `transparent`
- `--cc-btn-primary-hover-border-color`: `#000`
- `--cc-toggle-readonly-knob-icon-color`: `#d5dee2`
- `--cc-webkit-scrollbar-bg`: `#f0f4f7`
- `--cc-btn-secondary-color`: `#2c2f31`
- `--cc-toggle-enabled-icon-color`: `#fff`
- `--cc-btn-secondary-hover-bg`: `#d4dae0`
- `--cc-bg`: `#fff`

## 3. Typography Rules

### Font Families
- **Primary**: `Bricolage Grotesque`
- **Secondary**: `webflow-icons`
- **Font 3**: `Post`
- **Font 4**: `BricolageGrotesque`
- **Font 5**: `-apple-system`

### Custom Fonts Loaded
- **webflow-icons** weight 400 (normal)
- **Post** weight 400 (normal)
- **Bricolage Grotesque** weight 200 800 (normal)
- **BricolageGrotesque** weight 200 800 (normal)

### Typography Hierarchy

| Role | Font | Size | Weight | Line Height | Letter Spacing | Notes |
|------|------|------|--------|-------------|----------------|-------|
| Display Hero | Bricolage Grotesque | 100px | 800 | 0.8 | normal | Main headline (h1) |
| Sub-heading | Bricolage Grotesque | 40px | 800 | 1 | -1px | Third-level heading (h3) |
| Caption / Badge | Post | 24px | 400 | 0.83 | normal | small text (24px) |
| Caption / Badge | Bricolage Grotesque | 20px | 600 | 1 | normal | small text (20px) |
| Button Large | Bricolage Grotesque | 16px | 400 | 1.25 | normal | Button label (16px) |
| Button Large | Bricolage Grotesque | 16px | 500 | 1.25 | normal | Button label (16px) |
| Card Title | Bricolage Grotesque | 14px | 400 | 1.43 | normal | Card headings |
| Button | Bricolage Grotesque | 14px | 600 | 1.43 | normal | Button label (14px) |
| Button | Bricolage Grotesque | 14px | 500 | 1.43 | normal | Button label (14px) |

### Full Font Size Scale

Sizes detected in the design (descending): `100px`, `84px`, `80px`, `68px`, `64px`, `40px`, `36px`, `32px`, `28px`, `24px`, `20px`, `18px`, `16.80px`, `16px`, `14.40px`, `14px`, `13.12px`, `12.80px`, `12px`

> 13 size(s) detected outside the sampled hierarchy (84px, 80px, 68px, 64px, 36px, 32px, 28px, 18px, 16.8px, 14.4px, 13.12px, 12.8px, 12px). These appear on elements not in the sampled set — likely additional display sizes, marketing-section overrides, or third-party-widget styles.

### OpenType & Variable Font Features

**Variable font axes:**
- WDTH axis
- OPSZ axis
- WGHT axis

## 4. Component Stylings

### Buttons

**Ghost**
- Background: `transparent` `{colors.surface-2}`
- Text: `#222222`
- Padding: 0px
- Radius: 0px
- Font: 16px weight 400
- Use: Subtle action, toolbar, nav button
- Focus: backgroundColor: `rgb(239, 239, 239)`, color: `rgb(40, 47, 40)`, border: `0px none rgb(40, 47, 40)`

**Light / Invert**
- Background: `#ffffff`
- Text: `#181f18` `{colors.primary-focus}`
- Padding: 12px 24px
- Radius: 4px
- Shadow: `rgb(24, 31, 24) 0px 0px 0px 1px`
- Font: 14px weight 600
- Use: Bright CTA on dark sections
- Focus: backgroundColor: `rgb(239, 239, 239)`, color: `rgb(40, 47, 40)`, border: `0px none rgb(40, 47, 40)`

**Secondary**
- Background: `#181f18` `{colors.primary-focus}`
- Text: `#ffffff`
- Padding: 12px 24px
- Radius: 4px
- Font: 16px weight 500
- Use: Secondary action
- Focus: backgroundColor: `rgb(239, 239, 239)`, color: `rgb(40, 47, 40)`, border: `0px none rgb(40, 47, 40)`

**Light / Invert**
- Background: `#ffffff`
- Text: `#7f0000`
- Padding: 8px 8px 8px 32px
- Radius: 8px
- Shadow: `rgba(31, 24, 27, 0) 0px 177px 49px 0px, rgba(31, 24, 27, 0.04) 0px 113px 45px 0p...`
- Font: 14px weight 500
- Use: Bright CTA on dark sections
- Focus: backgroundColor: `rgb(239, 239, 239)`, color: `rgb(40, 47, 40)`, border: `0px none rgb(40, 47, 40)`

**Primary Brand**
- Background: `#f7ff01` `{colors.primary}`
- Text: `#181f18` `{colors.primary-focus}`
- Padding: 14px 28px
- Radius: 4px
- Shadow: `rgb(247, 255, 1) 0px 0px 0px 1px`
- Font: 16px weight 400
- Use: Primary CTA / brand action
- Focus: backgroundColor: `rgb(239, 239, 239)`, color: `rgb(40, 47, 40)`, border: `0px none rgb(40, 47, 40)`

**Secondary**
- Background: `#181f18` `{colors.primary-focus}`
- Text: `#ffffff`
- Padding: 14px 28px
- Radius: 4px
- Shadow: `rgb(24, 31, 24) 0px 0px 0px 1px`
- Font: 16px weight 400
- Use: Secondary action
- Focus: backgroundColor: `rgb(239, 239, 239)`, color: `rgb(40, 47, 40)`, border: `0px none rgb(40, 47, 40)`

**Ghost**
- Background: `transparent` `{colors.surface-2}`
- Text: `#181f18` `{colors.primary-focus}`
- Padding: 16px 20.8px
- Radius: 0px
- Font: 16px weight 400
- Use: Subtle action, toolbar, nav button
- Focus: backgroundColor: `rgb(239, 239, 239)`, color: `rgb(40, 47, 40)`, border: `0px none rgb(40, 47, 40)`

### Cards & Containers

**Standard Card**
- Background: `transparent` `{colors.surface-2}`
- Padding: 0px
- Radius: 0px
- Use: Content containers, listing items

### Navigation

**Main Nav**
- Background: `transparent` `{colors.surface-2}`
- Padding: 0px 64px
- Radius: none
- Font: 14px weight 400
- Use: Fixed/sticky flex nav — N/A items
- Hover: outline: `rgb(34, 34, 34) none 0px`

### Pricing Cards

**Default Tier**
- Background: `transparent` `{colors.surface-2}`
- Text: `#ffffff`
- Padding: 0px
- Radius: 0px
- Font: 14px weight 400
- Use: Subscription tier card

### CTA Banners

**Full-width CTA**
- Background: `transparent` `{colors.surface-2}`
- Text: `#181f18` `{colors.primary-focus}`
- Padding: 156px 0px 0px
- Radius: 0px
- Font: 14px weight 400
- Use: Full-width conversion strip with headline + button
- Focus: backgroundColor: `rgb(239, 239, 239)`, color: `rgb(40, 47, 40)`, border: `0px none rgb(40, 47, 40)`

### Testimonials

**Quote Card**
- Background: `transparent` `{colors.surface-2}`
- Text: `#181f18` `{colors.primary-focus}`
- Padding: 0px
- Radius: 0px
- Font: 14px weight 400
- Use: Customer quote with avatar + company attribution

### Alerts

**Alert Banner**
- Background: `#f7f5ff` `{colors.surface-1}`
- Text: `#181f18` `{colors.primary-focus}`
- Padding: 32px
- Radius: 6px
- Font: 14px weight 400
- Use: System alert, banner notification, toast

**Alert Banner**
- Background: `transparent` `{colors.surface-2}`
- Text: `#181f18` `{colors.primary-focus}`
- Padding: 0px
- Radius: 0px
- Font: 14px weight 400
- Use: System alert, banner notification, toast


## 4b. Component Behaviors (State Matrix)

### Interaction State Narrative

- **Button**:
  - **focus:** bg #ffffff → #efefef, text #181f18 → #282f28, border changes

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

```yaml
component-behaviors:
  button:
    default:
      bg: "rgb(255, 255, 255)"
      fg: "rgb(24, 31, 24)"
      shadow: "rgb(24, 31, 24) 0px 0px 0px 1px"
    focus:
      bg: "rgb(239, 239, 239)"
      fg: "rgb(40, 47, 40)"
      shadow: "rgb(24, 31, 24) 0px 0px 0px 1px"
  link:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(51, 51, 51)"
    hover:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(51, 51, 51)"
  card:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(24, 31, 24)"
  navLink:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(34, 34, 34)"
    hover:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(34, 34, 34)"
  badge:
    default:
      bg: "rgb(224, 221, 238)"
      fg: "rgb(24, 31, 24)"
```

**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
- **7 shape(s)** in this system: `Ghost`, `Light / Invert`, `Secondary`, `Light / Invert`, `Primary Brand`
- **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

### Pricing Cards
- **1 shape(s)** in this system: `Default Tier`
- **DO NOT introduce new pricing cards variants** without justification

### CTA Banners
- **1 shape(s)** in this system: `Full-width CTA`
- **DO NOT introduce new cta banners variants** without justification

### Testimonials
- **1 shape(s)** in this system: `Quote Card`
- **DO NOT introduce new testimonials variants** without justification

### Alerts
- **2 shape(s)** in this system: `Alert Banner`, `Alert Banner`
- **DO NOT introduce new alerts variants** without justification

## 5. Layout Principles

### Layout Type
**hero + sections**

### Grid
Single column, centered content

### Max Width
1200px

### Spacing System
Compact spacing — information density prioritized

| Token | Value |
|-------|-------|
| xxs | 2px |
| xs | 4px |
| sm | 8px |
| md | 16px |
| base | 64px |
| lg | 156px |
| xl | 32px |
| 2xl | 48px |
| 3xl | 64px |

### Border Radius Scale
| Name | Value | Use |
|------|-------|-----|
| None | 0px | No rounding |
| Xs | 4px | Tiny corners (badges, micro elements) |
| Sm | 8px | Buttons, inputs, small elements |
| Md | 12px | Cards, containers |
| Lg | 18px | Large rounded elements, pill segments |
| Xl | 26px | Category strips, featured containers |
| Full | 9999px | Pills, avatars, circular elements |

### Shape Language

| Component | Border Radius |
|-----------|---------------|
| Buttons | `0px` |
| Cards & Containers | `0px` |
| Navigation | `none` |
| Pricing Cards | `0px` |
| CTA Banners | `0px` |
| Testimonials | `0px` |
| Alerts | `6px` |
| Page Body | `0px` |

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

**Full Radius Spectrum**: 2px, 4px, 6px, 6.4px, 7.2px, 8px, 12px, 16px (from `allBorderRadii` scan)


## 5b. Spacing Rhythm Names

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

| Name | Value | Use case |
|------|-------|----------|
| **hero** | `64px` | Top/bottom of full-bleed hero sections |
| **section** | `32px` | Between major bands (color change, content shift) |
| **subsection** | `156px` | Within a section, between content groups |
| **card** | `16px` | 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).

**6/8 structural patterns detected.**

### Hero Pattern

- **Composition:** centered — Centered composition — heading + subheading + CTAs stacked vertically, content centered horizontally. Common for SaaS marketing pages.
- **Viewport coverage:** 344px tall (not full-viewport)
- **Heading:** "Découvrezla vie proqu'il vous faut" — 100px left-aligned
- **CTAs:** none detected in hero (unusual — agent should verify)
- **Clone instruction:** Reproduce the **centered** layout. Use the heading font-size token at the documented size. No imagery needed for hero — text-driven.

### Navigation Pattern

- **Position:** static (scrolls with page)
- **Layout:** unknown — Layout not classified
- **Height:** 44px
- **Logo:** ✗ absent
- **Nav links:** 4 primary items
- **CTAs in nav:** 1
- **Clone instruction:** Build a static unknown navigation. Reserve 1 slot for primary CTA.

### Card Grid Pattern

- **Card count:** 4 cards detected
- **Columns (desktop):** 2-up grid
- **Card dimensions:** 588×288px (aspect 2.04:1)
- **Gap:** 24px between cards
- **Content:** ✓ image + CTA
- **Image position:** top
- **Clone instruction:** Build a 2-column grid (desktop) with cards at ~2.04:1 aspect ratio. Each card has an image at the top.

### Testimonial Pattern

- **Count:** 1 testimonial blocks
- **Layout:** single-feature
- **Avg quote length:** 61 chars (short blurb)
- **Includes:** ✓ avatars | ✗ no logos | ✓ star ratings
- **Clone instruction:** Build a single-feature of 1 testimonials. Each includes an avatar.  Display ratings prominently.

### CTA Banner Pattern

- **Banner count:** 2
- **Position:** multiple
- **Visual treatment:** ✓ contrasting background
- **Primary CTA text:** "Etape 1clarifier ma relation au travailJe m'appuie sur les 4"
- **Clone instruction:** Place multiple CTA banners across page sections. Use contrasting solid background.

### Footer Pattern

- **Columns:** 2
- **Links:** 6 total
- **Height:** 84px
- **Includes:** ✗ no newsletter | ✗ no social |  ✓ copyright
- **Clone instruction:** Build a 2-column footer with ~3 links per column, and a copyright line.

## 6. Depth & Elevation

| Level | Treatment | Use |
|-------|-----------|-----|
| Flat (Level 0) | No shadow | Page background, content blocks |
| Layered (Level 1) | <br>`rgb(24, 31, 24) 0px 0px 0px 1px` | Cards, elevated surfaces |
| Layered (Level 2) | <br>`rgba(31, 24, 27, 0) 0px 177px 49px 0px`,<br>`rgba(31, 24, 27, 0.04) 0px 113px 45px 0px`,<br>`rgba(31, 24, 27, 0.04) 0px 64px 38px 0px`,<br>`rgba(31, 24, 27, 0.21) 0px 28px 28px 0px`,<br>`rgba(31, 24, 27, 0.24) 0px 7px 16px 0px` | Cards, elevated surfaces |
| Layered (Level 3) | <br>`rgba(0, 0, 0, 0.12) 0px 8px 40px 0px` | Cards, elevated surfaces |
| Layered (Level 4) | <br>`rgb(247, 255, 1) 0px 0px 0px 1px` | 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

### Dominant Easing Curves

| Curve | Semantic Name |
|-------|---------------|
| `ease-in-out` | Ease In-Out — Symmetric |
| `ease-in` | Ease In — Accelerating |
| `ease` | CSS ease — Default |

### Duration Scale

| CSS Variable | Value | Tier |
|--------------|-------|------|
| `--cc-modal-transition-duration` | `.25s` | Normal |

### Copy-Paste Transition Snippets

**Opacity**
```css
transition: opacity 0.2s;
```

**All Props**
```css
transition: 0.1s ease-in-out;
```

**All Props**
```css
transition: 0.2s ease-in-out;
```

**Background**
```css
transition: background-color 0.2s, color 0.2s;
```

### Keyframe Animation Catalog

| Animation Name | Type | Animated Props | Use Hint |
|----------------|------|----------------|----------|
| `spin` | Rotate / Spin | transform | Loading indicator |

### Motion Fingerprint

- **Speed Character**: Balanced Pacing (median duration: `200ms`)
- **Dominant Easing**: symmetric in-out (precise)
- **Animation Library**: 1 unique animation (1 total including variants)

> This design moves with balanced pacing timing using symmetric in-out (precise), creating a UI that feels natural and fluid.

## 8. Do's and Don'ts

### Do
- Use Light Gray (`#e0ddee`) as the page background — it's intentionally not pure white
- Use Near Black (`#181f18`) for text — not pure black, it's warmer and more readable
- Use Bricolage Grotesque 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 #f7ff01 (`#f7ff01`) as the primary accent — it's the brand's signature interactive color
- Use small 4px radius for buttons — this design system uses subtle rounding, not pill shapes
- Maintain nav height at 44px — consistent vertical space for the navigation bar
- Respect the 4px–32px spacing range — the design uses a wide scale for visual breathing room
- Keep the hero centered and text-driven — no decorative media, typography carries the message
- Each card includes a top image — imagery is part of the card identity, not optional
- Show person avatars with testimonials — social proof is human-centric here
- Repeat the primary CTA across 2 banner sections — conversion paths are layered, not single

### Don't
- Don't use pure white (`#ffffff`) as a page background — the warm tone is part of the brand identity
- 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 over-round buttons with pill or large radius — the system uses restrained, sharp-ish corners
- Don't collapse or hide the nav on scroll without an explicit scroll-triggered animation — the design uses fixed nav presence
- Don't add hero illustrations or photos — they'll break the typographic restraint
- Don't make the nav sticky — this design lets it scroll away to maximize content focus
- Don't over-build the footer — this design keeps it minimal (2 cols, 6 links)


## 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(224, 221, 238)` as the base canvas"
    why: "Every component is designed to composit against this exact tone"
    test: "document.body.style.backgroundColor === 'rgb(224, 221, 238)'"
  - id: brand-accent-001
    type: do
    rule: "Reserve `rgb(247, 255, 1)` for primary CTAs and brand-mark signals only"
    why: "Single chromatic assertion device — overuse dilutes meaning"
    test: "querySelectorAll('[style*=\"rgb(247, 255, 1)\"]').length <= 3 per fold"
```

## 9. Responsive Behavior

### Breakpoints
| Name | Width | Key Changes |
|------|-------|-------------|
| Mobile | 479px | Single column, compact spacing |
| Mobile Large | 640px | Expanded mobile layout |
| Mobile Large | 767px | Expanded mobile layout |
| Tablet | 991px | Multi-column grids begin |
| Desktop | 1280px | Full feature layout |
| Large Desktop | 1440px | Maximum content width |

### Token Diff — Desktop vs Mobile

| Element | Property | Desktop | Mobile |
|---------|----------|---------|--------|
| heading | font-size | `100px` | `44px` |
| heading | line-height | `80px` | `36.52px` |
| nav | display | `flex` | `none` |
| nav | flex-direction | `row` | `column` |
| nav | height | `44px` | `auto` |
| hero | padding | `156px 0px 0px` | `64px 0px 0px` |
| hero | height | `759.844px` | `682.375px` |
| button | font-size | `16px` | `12.8px` |
| button | width | `149px` | `auto` |
| card | width | `588px` | `183px` |

### Collapsing Strategy
- Headlines: 100px → 44px on mobile
- Navigation: flex → none 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):

- **Card grid: 2-up → 1-up** — cards stack as viewport narrows, becoming a vertical list on mobile.
- **Footer columns collapse:** 2 columns (desktop) → 1 column (mobile).

## 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://cdn.prod.website-files.com/68499d22938ad4db077f938e/6863a9e8b5ffe52f853e01e7_opengraph-chance.webp
  *This is the image shown when the site is shared on social media — represents the brand visual essence.*

**Hero Image (above-fold dominant visual):**
- Aspect: 0.72:1 (portrait / vertical)
- Rendered size: 1440×1987px
- *Use this aspect ratio + composition for your clone's hero — mimicking the proportion preserves the visual hierarchy.*

**Aspect Ratio Distribution:**
- Landscape (1.15–2.3): 9 (20%)
- Portrait (<0.87): 7 (15%)
- Square (0.87–1.15): 30 (65%)

**Media Format Mix:**
- WebP: 6 (optimized photo/illustration hybrid)
- PNG: 10 (logos, transparent UI elements, mockups)
- SVG: 5 (icons, illustrations, decorative geometry)

**Average rendered image size:** 288×312px
**Above-fold image count:** 4 / 46

**Decorative Patterns Detected:**
- 2 multi-stop linear gradients (mesh-like, 3+ color stops) — the brand leans on rich color transitions for visual depth
- 6 background patterns (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: Light Gray (`#e0ddee`)
- Primary text: Near Black (`#181f18`)
- Accent: #f7ff01 (`#f7ff01`)
- Border: Light Gray (`#e0ddee`)
- Font: Bricolage Grotesque
- Body: 14px weight 400

### Example Component Prompts
- "Create a hero section on Light Gray background (#e0ddee). Headline at 100px Bricolage Grotesque weight 800, line-height 0.8, color #181f18."
- "Create the primary CTA button: `#f7ff01` background, `#181f18` text, 4px border-radius, 14px 28px padding, 800 weight, Bricolage Grotesque font."
- "Design a card on `transparent` background. Border: none. Radius: 0px. Shadow: none. Padding: 0px."
- "Build navigation: relative on `#e0ddee`. Bricolage Grotesque 14px weight 400 for links."

### Iteration Guide
1. **Canvas**: Set the light canvas to Light Gray (`#e0ddee`) — every component is composited against this exact base.
2. **Typography**: All type in Bricolage Grotesque, weight range 400–800. Never exceed 800 — heavier weights break the brand's tonal restraint.
3. **Accent**: #f7ff01 (`#f7ff01`) is the sole interactive color. On hover → Baby Blue (`#8ebdff`). Use CSS transitions, not opacity/brightness filters.
4. **Shape**: CTAs at `0px`, cards at `0px`. Apply border-radius from the extracted scale only — don't invent intermediate values.
5. **Spacing**: Use the `--ca-space-*` token scale (4px–32px). All padding, margin, and gap values are multiples from this scale — no magic numbers.
6. **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-hairline: #e0ddee;
  --ca-surface-1: #f7f5ff;
  --ca-surface-2: transparent;
  --ca-primary-focus: #181f18;
  --ca-ink-subtle: #2c2f31;
  --ca-primary: #f7ff01;
  --ca-on-primary: #111111;
  --ca-primary-hover: #8ebdff;
}

/* Typography */
:root {
  --ca-font-primary: "Bricolage Grotesque", system-ui, sans-serif;
  --ca-text-display: 100px;
  --ca-text-body: 14px;
  --ca-text-caption: 24px;
  --ca-text-button: 16px;
}

/* Spacing & Radius */
:root {
  --ca-space-xxs: 2px;
  --ca-space-xs: 4px;
  --ca-space-sm: 8px;
  --ca-space-md: 16px;
  --ca-space-base: 64px;
  --ca-space-lg: 156px;
  --ca-space-xl: 32px;
  --ca-space-2xl: 48px;
  --ca-space-3xl: 64px;
  --ca-radius-none: 0px;
  --ca-radius-xs: 4px;
  --ca-radius-sm: 8px;
  --ca-radius-md: 12px;
  --ca-radius-lg: 18px;
  --ca-radius-xl: 26px;
  --ca-radius-full: 9999px;
}
```


## 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: unknown
    tag: div
    classes: ["page-wrapper"]
    height: 9945px
    width: full-bleed
    layout: block
    children: 3
  - section: hero
    tag: section
    classes: ["section_home-hero", "v2"]
    height: 760px
    width: full-bleed
    layout: block
    children: 2
    padding: "156px 0px 0px"
  - section: unknown
    tag: div
    classes: ["main-wrapper", "position-relative"]
    height: 9945px
    width: full-bleed
    layout: block
    children: 11
  - section: unknown
    tag: div
    classes: ["container-large", "v2"]
    height: 604px
    width: 1200px
    layout: block
    children: 1
  - section: hero
    tag: div
    classes: ["w-layout-grid", "v2"]
    height: 604px
    width: 1200px
    layout: grid: 2-col gap=48px 32px
    children: 3
  - section: hero
    tag: div
    classes: ["home_hero_left-content", "v2"]
    height: 512px
    width: 568px
    layout: flex-column justify=normal
    children: 1
  - section: hero
    tag: div
    classes: ["home_hero_upper-content"]
    height: 512px
    width: 568px
    layout: flex-column justify=flex-start
    children: 1
    padding: "48px 0px 0px"
  - section: hero
    tag: div
    classes: ["w-layout-layout", "home-hero_right-content", "wf-layout-layout"]
    height: 604px
    width: 584px
    layout: grid: 2-col gap=24px
    children: 3
  - section: hero
    tag: div
    classes: ["w-layout-cell", "home-hero-cell-1"]
    height: 291px
    width: 280px
    layout: flex-column justify=flex-end
    children: 1
  - section: hero
    tag: div
    classes: ["w-layout-cell", "home-hero-cell-3", "hide-tablet"]
    height: 604px
    width: 280px
    layout: flex-column justify=center
    children: 1
  - section: hero
    tag: div
    classes: ["home-hero_portrait-container"]
    height: 274px
    width: 280px
    layout: block
    children: 2
  - section: hero
    tag: div
    height: 464px
    width: 568px
    layout: flex-column justify=normal
    children: 2
  - section: hero
    tag: div
    classes: ["home_hero_heading-content"]
    height: 344px
    width: 568px
    layout: flex-column justify=normal
    children: 2
  - section: hero
    tag: div
    classes: ["home-hero_portrait-container"]
    height: 358px
    width: 280px
    layout: block
    children: 2
  - section: hero
    tag: div
    classes: ["hero_name-container"]
    height: 88px
    width: 280px
    layout: flex-column justify=flex-start
    children: 3
  - section: hero
    tag: div
    classes: ["home-hero_portrait-container"]
    height: 272px
    width: 280px
    layout: block
    children: 2
  - section: hero
    tag: div
    classes: ["w-layout-cell", "home-hero-cell-2"]
    height: 289px
    width: 280px
    layout: flex-column justify=flex-start
    children: 1
  - section: hero
    tag: div
    classes: ["hero_name-container"]
    height: 88px
    width: 280px
    layout: flex-column justify=flex-start
    children: 3
  - section: hero
    tag: div
    classes: ["hero_name-container"]
    height: 88px
    width: 280px
    layout: flex-column justify=flex-start
    children: 3
  - section: section-3
    tag: section
    classes: ["v2"]
    height: 967px
    width: full-bleed
    layout: block
    children: 1
    padding: "148px 0px 0px"
  - section: unknown
    tag: div
    classes: ["container-large", "v2"]
    height: 819px
    width: 1200px
    layout: block
    children: 2
  - section: unknown
    tag: div
    classes: ["arrows_visual-wrapper", "v2"]
    height: 506px
    width: 512px
    layout: block
    children: 1
  - section: section-4
    tag: section
    classes: ["is-homepage-v2"]
    height: 1970px
    width: full-bleed
    layout: block
    children: 2
    bg: "rgba(247, 245, 255, 0)"
    padding: "126.5px 0px 64px"
  - section: unknown
    tag: div
    classes: ["container-large", "v2"]
    height: 1780px
    width: 1200px
    layout: block
    children: 2
  - section: unknown
    tag: div
    height: 664px
    width: 1200px
    layout: block
    children: 1
```

**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:
    - "CHANCE CHOISI PAR GOOGLE.ORG"
    - "DÉFINISSEZ LE PROJET PRO
QUI VOUS CORRESPOND VRAIMENT EN 3 MOIS !"
    - "NOTRE MÉTHODE UNIQUE
LE TRÈFLE™ DE CHANCE"
    - "L'AMOUR PRO"
    - "LES MÉDIAS EN PARLENT"
  sub-headings:
    - "CLARIFIER MA RELATION AU TRAVAIL"
    - "EXPLORER"
    - "VOUS VOUS POSEZ DES QUESTIONS SUR VOTRE TRAVAIL ?"
    - "BILAN CHANCE™"
  ctas:
    - "Qui sommes-nous ?"
    - "Se connecter"
    - "En savoir plus"
    - "Voir tous les témoignages"
    - "Faites le test de l’Amour Pro"
  navigation:
    - "Faire Chance"
    - "Trouver votre travail"
    - "Rejoindre le collectif"
    - "Partenariat Google.org"
    - "Le collectif Chance"
    - "Baromètre Amour Pro 2026"
    - "Entreprise"
    - "Se connecter"
```

**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:
  product:
    count: 5
    avg-ratio: 1.09
    common-aspect: "~1:1 square"
  thumbnail:
    count: 23
    avg-ratio: 1.00
    common-aspect: "~1:1 square"
  icon:
    count: 4
    avg-ratio: 1.29
    common-aspect: "~1:1 square"
```

**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">
  Qui sommes-nous ?
</button>
```
_Source pattern detected: padding `0px` · radius `0px` · weight `400`_

### Generic Card
```html
<div class="card">
  <!-- content -->
</div>
```
_Source pattern detected: padding `0px` · radius `0px` · shadow `none`_

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


---
## Extraction Completeness: 90/100 (A)

| Category | Score | Max | Detail |
|----------|-------|-----|--------|
| Colors & Palette | 25 | 25 | 20 named colors |
| Typography | 20 | 20 | 9 roles defined |
| Components | 20 | 20 | 7 specs extracted |
| Motion & Interaction | 12 | 15 | Keyframes present |
| CSS Custom Properties | 3 | 10 | 58 vars |
| Responsive Breakpoints | 5 | 5 | 6 breakpoints |
| Variable Fonts | 5 | 5 | WDTH, OPSZ, WGHT axes |

## 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.

| Category | What's missing | Fallback strategy |
|----------|----------------|-------------------|
| **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 | 58 CSS vars (semantic naming requires ≥20 for high) |
| §3 Typography | High | 9 typography roles inferred |
| §4 Components | High | 7 component variants captured |
| §7 Motion | High | Keyframes + transitions |
| §8 Do's/Don'ts | High | 22 rules generated; design-decisions.json has evidence per rule |
| §9 Responsive | High | 6 breakpoints detected |
| §9b Photography | High | 46 images, hero present |

---
*Generated by Clone Architect — automated Playwright extraction + design analysis.*
*Source: https://www.chance.co | 2026-05-30T20:38:40.691Z*
*All values verified via getComputedStyle() — no approximation, no hallucination.*