airbnb.com

DESIGN.md

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

---
version: alpha
name: airbnb.com
description: "Light product system built on #ffffff with #ff385c as the primary CTA accent. Type anchored in Airbnb Cereal VF at 28px / weight 700. Extracted automatically from https://airbnb.com/ — every value from getComputedStyle(), no approximation."
narrative: |
  airbnb.com is built on a pure-white canvas (rgb(255, 255, 255)).
  The system uses #FF385C as the high-saturation accent for primary actions.
  Generously rounded CTAs (32px) suggest approachable, content-first design alongside Airbnb Cereal VF as the primary typeface.

colors:
  background: "#ffffff"
  surface-1: "#ebebeb"
  surface-2: "#f2f2f2"
  ink: "#222222"
  ink-subtle: "#8c8c8c"
  primary: "#ff385c"
  on-primary: "#ffffff"
  primary-hover: "#460479"
  hairline: "#6a6a6a"
  primary-focus: "#222222"
  semantic-error: "#b32505"
  semantic-success: "#008a05"
  semantic-warning: "#e07912"
  semantic-info: "#428bff"

typography:
  display-xl:
    fontFamily: "Airbnb Cereal VF"
    fontSize: 72px
    fontWeight: 600
    lineHeight: 1.03
    letterSpacing: 0
  display-md:
    fontFamily: "Airbnb Cereal VF"
    fontSize: 22px
    fontWeight: 500
    lineHeight: 1.18
    letterSpacing: -0.44px
  body:
    fontFamily: "Airbnb Cereal VF"
    fontSize: 32px
    fontWeight: 600
    lineHeight: 1.13
    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: 24px
  xl: 32px
  xxl: 64px
  section: 80px

components:
  button-pill:
    backgroundColor: "transparent"
    textColor: "{colors.primary-focus}"
    typography: "{typography.display-md}"
    rounded: "{rounded.xl}"
  button-ghost:
    backgroundColor: "transparent"
    textColor: "{colors.primary-focus}"
    typography: "{typography.display-md}"
    rounded: "{rounded.xl}"
  button-pill:
    backgroundColor: "transparent"
    textColor: "{colors.primary-focus}"
    typography: "{typography.display-md}"
    rounded: "{rounded.xl}"
  input-text-input:
    backgroundColor: "transparent"
    textColor: "{colors.primary-focus}"
    typography: "{typography.display-md}"
    rounded: "{rounded.none}"
  navigation-main-nav:
    backgroundColor: "transparent"
    typography: "{typography.display-md}"
    rounded: "{rounded.none}"
    padding: 0px 48px
  search-bar-search-bar:
    backgroundColor: "transparent"
    textColor: "{colors.primary-focus}"
    typography: "{typography.display-md}"
    rounded: "{rounded.none}"
    padding: 0px 48px
  tab-ghost-tab:
    backgroundColor: "transparent"
    textColor: "{colors.primary-focus}"
    typography: "{typography.display-md}"
    rounded: "{rounded.none}"

extracted_at: "2026-05-30T20:38:22.313Z"
completeness: 92
scoreVersion: "v2"

---

# Design System — airbnb.com
> Extracted automatically by Clone Architect from https://airbnb.com
> 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(255, 255, 255)` is the page background. Every component composits against this.
> - **Accent**: `#FF385C` 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: 24px.
> - **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

airbnb.com adopts the classic pure-white canvas (`#ffffff`) — a deliberate choice that recedes into transparency, letting typography, color and product imagery carry the entire visual weight. 

Typography is anchored in **Airbnb Cereal VF**. Headlines use weight 700 for confident, assertive presence — the brand wants to be heard. 

Body text reads in Hof (`#222222`) — softened from pure black, a small but deliberate detail that lowers reading friction. **Rausch** (`#ff385c`) provides interactive distinction without visual aggression. 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. 

**Key Characteristics:**
- Background: White (`#ffffff`)
- Primary typeface: Airbnb Cereal VF
- Primary text: Hof (`#222222`)
- Accent: Rausch (`#ff385c`)
- Shadow system: 4 distinct elevation levels
- Custom fonts loaded: Airbnb Cereal VF

## 2. Color Palette & Roles

### Background & Surface
- **White** (`#ffffff`): Page background (primary)
- **Faint** (`#f7f7f7`): Surface / elevated background (CSS var)
- **Palette Bg Quaternary** (`#f2f2f2`): Surface / elevated background (CSS var)
- **Bebe** (`#ebebeb`): Surface / elevated background (CSS var)
- **Palette Bg Primary Error** (`#fff8f6`): Surface / elevated background (CSS var)

### Text & Content
- **Hof** (`#222222`): Primary body text
- **Palette Text Secondary Error Hover** (`#b32505`): Text (CSS var)
- **Spruce** (`#008a05`): Text (CSS var)
- **Palette Icon Tertiary** (`#8c8c8c`): Text (CSS var)
- **Arches** (`#c13515`): Text (CSS var)

### Accent & Interactive
- **Rausch** (`#ff385c`): Accent / interactive (CSS var)
- **Palette Bg Tertiary Core** (`#e00b41`): Accent / interactive (CSS var)
- **Bobo** (`#b0b0b0`): Accent / interactive (CSS var)
- **Luxe** (`#460479`): Accent / interactive (CSS var)
- **Plus** (`#92174d`): Accent / interactive (CSS var)
- **Foggy** (`#6a6a6a`): Accent / interactive (CSS var)

### Border & Divider
- **Palette Border Primary Hover** (`#000000`): Border (CSS var)
- **Deco** (`#dddddd`): Border (CSS var)
- **Silver** (`#c1c1c1`): Borders / dividers

### Full Extracted Palette
117 distinct colors detected on the live page (19 categorized above + 98 additional below). Every value is a real `getComputedStyle()` color — no approximation.

- `#6c6c6c` — Dim Gray
- `#fff5f3` — Snow
- `#e61e4d` — Ruby
- `#e31c5f` — Ruby
- `#d70466` — #d70466
- `#8dd19e` — #8dd19e
- `#ddedfe` — Light Gray
- `#59086e` — #59086e
- `#440589` — #440589
- `#fff5f6` — Snow
- `#c6e0fe` — Light Blue
- `#162339` — Navy Blue
- `#a3150f` — #a3150f
- `#a21039` — #a21039
- `#bd1e59` — #bd1e59
- `#361a21` — Warm Brown
- `#8f3400` — Chocolate
- `#be4900` — #be4900
- `#fdf5fb` — Snow
- `#772320` — #772320
- `#bd31a1` — #bd31a1
- `#f84a43` — Vermillion
- `#861453` — #861453
- `#6c0d63` — #6c0d63
- `#ffaca5` — #ffaca5
- `#c5c1bb` — Silver
- `#166bd8` — M Tricolor Blue
- `rgba(240, 240, 240, 0.86)` — Translucent Light Gray (86%)
- `#12a139` — Success Green
- `#f7b383` — #f7b383
- `#6a255e` — #6a255e
- `rgba(250, 250, 250, 0.72)` — Translucent Off-White (72%)
- *…+66 more in `raw-css.json` (`desktop.allColors`).*

### Gradients & Decorative Fills

- `linear-gradient(to left,#59086E 0%,#460479 50%,#440589 100%)` — (--palette-luxe-gradient-linear-gradient-rtl)
- `linear-gradient(to left,#E61E4D 0%,#E31C5F 50%,#D70466 100%)` — (--palette-rausch-gradient-linear-gradient-rtl)
- `radial-gradient(circle at center,#FF385C 0%,#E61E4D 27.5%,#E31C5F 40%,#D70466 57.5%,#BD1E59 75%,#BD1…` — (--palette-rausch-gradient-radial-gradient)
- `linear-gradient(to left,#BD1E59 0%,#92174D 50%,#861453 100%)` — (--palette-plus-gradient-linear-gradient-rtl)
- `linear-gradient(to right,#E61E4D 0%,#E31C5F 50%,#D70466 100%)` — (--palette-rausch-gradient-linear-gradient)
- `radial-gradient(circle at center,#D70466 0%,#BD1E59 30%,#92174D 55%,#861453 72.5%,#6C0D63 90%,#6C0D6…` — (--palette-plus-gradient-radial-gradient)
- `linear-gradient(to right,#BD1E59 0%,#92174D 50%,#861453 100%)` — (--palette-plus-gradient-linear-gradient)
- `linear-gradient(to right,#59086E 0%,#460479 50%,#440589 100%)` — (--palette-luxe-gradient-linear-gradient)

### CSS Custom Properties (Design Tokens)

**Spacing Token**
- `--spacing-macro24px`: `24px`
- `--typography-tracking-normal-letter-spacing`: `normal`
- `--typography-titles-medium_14_18-letter-spacing`: `normal`
- `--typography-body-paragraphs-text_16_22-letter-spacing`: `normal`

**Font Size Token**
- `--typography-subtitles-book_18_24-font-size`: `1.125rem`
- `--typography-body-text_14_18-font-size`: `0.875rem`
- `--typography-body-text_16_20-font-size`: `1rem`
- `--typography-titles-medium_14_18-font-size`: `0.875rem`

**Motion Token**
- `--motion-springs-fast-bounce-source-mass`: `1px`
- `--motion-springs-slow-easing`: `linear(0,0.1726495179466309,0.44139132340393467,0.6575338740242772,0.8021357455779029,0.890693569...`
- `--motion-springs-fast-easing`: `linear(0,0.18557241650572898,0.46530560393651493,0.6823338821577483,0.8223254801509006,0.90497441...`

**Shadow Token**
- `--palette-shadow350`: `rgba(0,0,0,0.28)`
- `--palette-shadow50`: `rgba(0,0,0,0.04)`
- `--palette-shadow300`: `rgba(0,0,0,0.20)`
- `--elevation-elevation1-box-shadow`: `0px 0px 0px 1px rgba(0,0,0,0.02),0px 2px 4px 0px rgba(0,0,0,0.16)`

**Font Weight Token**
- `--typography-titles-medium_14_18-font-weight`: `500`
- `--typography-titles-medium_18_24-font-weight`: `500`
- `--typography-special-display-medium_40_44-font-weight`: `600`
- `--typography-titles-semibold_14_18-font-weight`: `600`

**Border Radius Token**
- `--corner-radius-xxlarge28px-border-radius`: `28px`
- `--corner-radius-medium12px-border-radius`: `12px`
- `--corner-radius-small8px-border-radius`: `8px`
- `--corner-radius-tiny4px-border-radius`: `4px`

**Other tokens**
- `--palette-bg-primary-core`: `#FF385C`
- `--palette-bg-primary-selected`: `#F7F7F7`
- `--palette-bg-tertiary-core`: `#E00B41`
- `--palette-border-primary-inverse`: `#FFFFFF`
- `--typography-body-text_16_20-line-height`: `1.25rem`
- `--palette-icon-primary`: `#222222`
- `--palette-text-secondary-error-hover`: `#B32505`
- `--palette-text-primary-inverse`: `#FFFFFF`

## 3. Typography Rules

### Font Families
- **Primary**: `Airbnb Cereal VF`

### Custom Fonts Loaded
- **Airbnb Cereal VF** weight normal (normal)

### Typography Hierarchy

| Role | Font | Size | Weight | Line Height | Letter Spacing | Notes |
|------|------|------|--------|-------------|----------------|-------|
| Special Display Medium | Airbnb Cereal VF | 72px | 600 | 1.03 | normal | Typography system token (72px/74px) |
| Special Display Medium | Airbnb Cereal VF | 60px | 600 | 1.13 | normal | Typography system token (60px/68px) |
| Special Display Medium | Airbnb Cereal VF | 48px | 600 | 1.13 | normal | Typography system token (48px/54px) |
| Special Display Medium | Airbnb Cereal VF | 40px | 600 | 1.1 | normal | Typography system token (40px/44px) |
| Titles Semibold | Airbnb Cereal VF | 32px | 600 | 1.13 | normal | Typography system token (32px/36px) |
| Display Hero | Airbnb Cereal VF | 28px | 700 | 1.43 | normal | Main headline (h1) |
| Titles Semibold | Airbnb Cereal VF | 26px | 600 | 1.15 | normal | Typography system token (26px/30px) |
| Sub-heading | Airbnb Cereal VF | 22px | 500 | 1.18 | -0.44px | Section titles (h2) |
| Titles Semibold | Airbnb Cereal VF | 22px | 600 | 1.18 | normal | Typography system token (22px/26px) |
| Subtitles Book | Airbnb Cereal VF | 18px | 400 | 1.33 | normal | Typography system token (18px/24px) |
| Titles Semibold | Airbnb Cereal VF | 18px | 600 | 1.33 | normal | Typography system token (18px/24px) |
| Titles Medium | Airbnb Cereal VF | 18px | 500 | 1.33 | normal | Typography system token (18px/24px) |
| Body Text | Airbnb Cereal VF | 16px | 400 | 1.25 | normal | Typography system token (16px/20px) |
| Sub-heading | Airbnb Cereal VF | 14px | 500 | 1.29 | normal | Third-level heading (h3) |
| Body | Airbnb Cereal VF | 14px | 400 | 1.43 | normal | Standard reading text |

### Font Weight Scale

CSS custom properties define 16 explicit weight steps:
- `--typography-subtitles-book_18_24-font-weight`: `400` — Regular
- `--typography-subtitles-book_14_18-font-weight`: `400` — Regular
- `--typography-subtitles-book_16_22-font-weight`: `400` — Regular
- `--typography-titles-medium_14_18-font-weight`: `500` — Medium
- `--typography-titles-medium_18_24-font-weight`: `500` — Medium
- `--typography-titles-medium_16_20-font-weight`: `500` — Medium
- `--typography-special-display-medium_40_44-font-weight`: `600` — SemiBold
- `--typography-titles-semibold_14_18-font-weight`: `600` — SemiBold
- `--typography-special-display-medium_72_74-font-weight`: `600` — SemiBold
- `--typography-special-display-medium_48_54-font-weight`: `600` — SemiBold
- `--typography-titles-semibold_16_20-font-weight`: `600` — SemiBold
- `--typography-titles-semibold_26_30-font-weight`: `600` — SemiBold
- `--typography-special-display-medium_60_68-font-weight`: `600` — SemiBold
- `--typography-titles-semibold_18_24-font-weight`: `600` — SemiBold
- `--typography-titles-semibold_22_26-font-weight`: `600` — SemiBold
- `--typography-titles-semibold_32_36-font-weight`: `600` — SemiBold

### Full Font Size Scale

Sizes detected in the design (descending): `28px`, `20px`, `16px`, `14px`, `13px`, `12px`, `11px`, `8px`

> 5 size(s) detected outside the sampled hierarchy (20px, 13px, 12px, 11px, 8px). 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

The typography uses these OpenType features intentionally — this is a sophisticated type system, not a default fallback:

- **tabular figures** (`tnum`) — numbers align vertically, essential for pricing tables and dashboards
- **lining figures** (`lnum`) — full-height numbers, more authoritative than old-style

**Clone instruction:** Enable these in your CSS:
```css
body {
  font-feature-settings: "salt", "tnum", "lnum";
}
```

## 4. Component Stylings

### Buttons

**Pill**
- Background: `transparent`
- Text: `#222222` `{colors.primary-focus}`
- Padding: 0px
- Radius: 40px 4px 4px 40px
- Border: 1px solid rgba(0, 0, 0, 0)
- Font: 14px weight 400
- Use: Status pills, tags, chips
- Focus: boxShadow: `rgb(255, 255, 255) 0px 0px 0px 2px, rgb(34, 34, 34) 0px 0px `

**Ghost**
- Background: `transparent`
- Text: `#222222` `{colors.primary-focus}`
- Padding: 0px
- Radius: 32px
- Font: 14px weight 400
- Use: Subtle action, toolbar, nav button
- Focus: boxShadow: `rgb(255, 255, 255) 0px 0px 0px 2px, rgb(34, 34, 34) 0px 0px `

**Pill**
- Background: `transparent`
- Text: `#222222` `{colors.primary-focus}`
- Padding: 0px
- Radius: 50px
- Font: 14px weight 400
- Use: Status pills, tags, chips
- Focus: boxShadow: `rgb(255, 255, 255) 0px 0px 0px 2px, rgb(34, 34, 34) 0px 0px `

**Icon Button**
- Background: `#f2f2f2` `{colors.surface-2}`
- Text: `#222222` `{colors.primary-focus}`
- Padding: 0px
- Radius: 50%
- Font: 14px weight 400
- Use: Toolbar/UI icons
- Focus: boxShadow: `rgb(255, 255, 255) 0px 0px 0px 2px, rgb(34, 34, 34) 0px 0px `

**Icon Button**
- Background: `#f2f2f2` `{colors.surface-2}`
- Text: `#c1c1c1`
- Padding: 0px
- Radius: 50%
- Font: 14px weight 400
- Use: Toolbar/UI icons
- Focus: boxShadow: `rgb(255, 255, 255) 0px 0px 0px 2px, rgb(34, 34, 34) 0px 0px `

### Inputs & Forms

**Text Input**
- Background: `transparent`
- Text: `#222222` `{colors.primary-focus}`
- Padding: 0px
- Radius: 0px
- Border: 0px none rgb(34, 34, 34)
- Font: 14px weight 500
- Use: Text fields, search inputs

### Navigation

**Main Nav**
- Background: `transparent`
- Padding: 0px 48px
- Radius: none
- Font: 14px weight 400
- Use: Static flex nav — N/A items

### Search Bar

**Search Bar**
- Background: `transparent`
- Text: `#222222` `{colors.primary-focus}`
- Padding: 0px 48px
- Radius: 0px
- Font: 14px weight 400
- Use: Inline search form

### Tabs

**Ghost Tab**
- Background: `transparent`
- Text: `#222222` `{colors.primary-focus}`
- Padding: 0px
- Radius: 0px
- Font: 14px weight 400
- Use: Navigation tabs, filter tabs


## 4b. Component Behaviors (State Matrix)

### Interaction State Narrative

- **Button**:
  - **focus:** shadow added

*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(34, 34, 34)"
    focus:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(34, 34, 34)"
      shadow: "rgb(255, 255, 255) 0px 0px 0px 2px, rgb(34, 34, 34) 0px 0px "
  input:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(34, 34, 34)"
  link:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(34, 34, 34)"
  navLink:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(255, 56, 92)"
  tab:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(34, 34, 34)"
  footerLink:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(34, 34, 34)"
    hover:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(34, 34, 34)"
```

**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
- **5 shape(s)** in this system: `Pill`, `Ghost`, `Pill`, `Icon Button`, `Icon Button`
- **DO NOT introduce new buttons variants** without justification

### Inputs & Forms
- **1 shape(s)** in this system: `Text Input`
- **DO NOT introduce new inputs & forms variants** without justification

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

### Search Bar
- **1 shape(s)** in this system: `Search Bar`
- **DO NOT introduce new search bar variants** without justification

### Tabs
- **1 shape(s)** in this system: `Ghost Tab`
- **DO NOT introduce new tabs variants** without justification

## 5. Layout Principles

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

### Grid
Single column, centered content

### Max Width
1920px

### Spacing System
Compact spacing — information density prioritized

| Token | Value |
|-------|-------|
| xxs | 2px |
| xs | 4px |
| sm | 8px |
| md | 12px |
| base | 16px |
| lg | 24px |
| 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 | 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 | `40px 4px 4px 40px` |
| Inputs & Forms | `0px` |
| Navigation | `none` |
| Search Bar | `0px` |
| Tabs | `0px` |
| Page Body | `0px` |
| Primary Input | `0px` |

**Shape Personality**: Generously Rounded — Soft, friendly corners (8px+). Approachable, consumer-facing feel.

**Full Radius Spectrum**: 0px, 1.5px, 8px, 9px, 10px, 14px, 20px, 32px (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** | `24px` | 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:** split-right-text — Split layout, media-left/text-right — image in left column, heading + body in right column. Less common variant.
- **Viewport coverage:** full-viewport hero (≥70% screen height)
- **Heading:** "Page d'accueil Airbnb" — 28px left-aligned
- **Subheading:** "Logements disponibles le mois prochain · Montpellier"
- **Media:** present, positioned left
- **CTAs:** 18 (primary: "Devenir hôte")
- **Clone instruction:** Reproduce the **split-right-text** layout. Use the heading font-size token at the documented size. Place media left of text.

### Navigation Pattern

- **Position:** static (scrolls with page)
- **Layout:** unknown — Layout not classified
- **Height:** 80px
- **Logo:** ✗ absent
- **Nav links:** 0 primary items
- **CTAs in nav:** 0 (no buttons — links only)
- **Clone instruction:** Build a static unknown navigation. Link-only — no button styling needed.

### Card Grid Pattern

- **Card count:** 12 cards detected
- **Columns (desktop):** 1-up grid
- **Card dimensions:** 1425×338px (aspect 4.21:1)
- **Gap:** 0px between cards
- **Content:** ✓ image + CTA
- **Image position:** top
- **Clone instruction:** Build a 1-column grid (desktop) with cards at ~4.21:1 aspect ratio. Each card has an image at the top.

### Footer Pattern

- **Columns:** 3
- **Links:** 30 total
- **Height:** 633px
- **Includes:** ✗ no newsletter | ✓ social icons |  ✓ copyright
- **Clone instruction:** Build a 3-column footer with ~10 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 |
| Inset (Level 1) | <br>`rgba(60, 77, 107, 0.25) 0px 0.953955px 1.90791px 0px`,<br>`rgba(60, 77, 107, 0.25) 0px 3.81582px 5.72373px 0px`,<br>`rgb(0, 28, 64) 0px 0px 2px 0.5px inset`,<br>`rgb(215, 235, 255) 0px -1px 3px 0px inset` | Buttons, pressed-state elements |
| Layered (Level 2) | <br>`rgba(0, 0, 0, 0.02) 0px 0px 0px 1px`,<br>`rgba(0, 0, 0, 0.1) 0px 8px 24px 0px` | Cards, elevated surfaces |
| Layered (Level 3) | <br>`rgba(0, 0, 0, 0.02) 0px 0px 0px 1px`,<br>`rgba(0, 0, 0, 0.04) 0px 2px 6px 0px`,<br>`rgba(0, 0, 0, 0.1) 0px 4px 8px 0px` | Cards, elevated surfaces |
| Layered (Level 4) | <br>`rgba(0, 0, 0, 0.02) 0px 0px 0px 1px`,<br>`rgba(0, 0, 0, 0.16) 0px 2px 4px 0px` | Cards, elevated surfaces |

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

### Elevation Scale (CSS Tokens)

| Level | Shadow Value |
|-------|-------------|
| primary-border | `1px solid rgba(0,0,0,0.04)` |
| 2-box-shadow | `0px 0px 0px 1px rgba(0,0,0,0.02),0px 2px 6px 0px rgba(0,0,0,0.04),0px 4px 8px 0px rgba(...` |
| 1-box-shadow | `0px 0px 0px 1px rgba(0,0,0,0.02),0px 2px 4px 0px rgba(0,0,0,0.16)` |
| 4-box-shadow | `0px 0px 0px 1px rgba(0,0,0,0.02),0px 4px 8px 0px rgba(0,0,0,0.08),0px 12px 30px 0px rgb...` |
| tertiary-box-shadow | `0 2px 4px rgba(0,0,0,0.18)` |
| 3-box-shadow | `0px 0px 0px 1px rgba(0,0,0,0.02),0px 8px 24px 0px rgba(0,0,0,0.10)` |

## 7. Motion & Interaction

### Easing System

| CSS Variable | Curve | Semantic Name |
|--------------|-------|---------------|
| `--motion-springs-slow-easing` | `linear(0,0.1726495179466309,0.44139132340393467,0.6575338...` | Spring Easing — Physics-Based |
| `--motion-springs-fast-easing` | `linear(0,0.18557241650572898,0.46530560393651493,0.682333...` | Spring Easing — Physics-Based |
| `--motion-springs-medium-bounce-easing` | `linear(0,0.17056804830171035,0.47921259292635127,0.749704...` | Spring Easing — Physics-Based |
| `--motion-springs-standard-easing` | `linear(0,0.15794349142280711,0.4146686698630492,0.6303103...` | Spring Easing — Physics-Based |
| `--motion-springs-slow-bounce-easing` | `linear(0,0.17157063121773947,0.4812770425544863,0.7518340...` | Spring Easing — Physics-Based |
| `--motion-springs-fast-bounce-easing` | `linear(0,0.25484239226416866,0.643483807710504,0.90617420...` | Spring Easing — Physics-Based |

### Duration Scale

| CSS Variable | Value | Tier |
|--------------|-------|------|
| `--motion-springs-slow-bounce-duration` | `762.2807017543847ms` | Cinematic |
| `--motion-springs-slow-duration` | `745.6140350877179ms` | Cinematic |
| `--motion-springs-medium-bounce-duration` | `574.1228070175433ms` | Slow |
| `--motion-springs-fast-bounce-duration` | `449.12280701754327ms` | Slow |
| `--motion-springs-fast-duration` | `451.75438596491193ms` | Slow |
| `--motion-springs-standard-duration` | `583.7719298245607ms` | Slow |

### Copy-Paste Transition Snippets

**Color / Background**
```css
transition: color 0.25s cubic-bezier(0.2, 0, 0, 1);
```

**Opacity**
```css
transition: opacity 0.175s cubic-bezier(0, 0, 1, 1);
```

**Transform**
```css
transition: transform 0.3s cubic-bezier(0.2, 0, 0, 1);
```

**Transform**
```css
transition: transform 0.451754s linear(0 0%, 0.185572 10%, 0.465306 20%, 0.682334 30%, 0.822325 40%, 0.904974 50%, 0.951289 60%, ...;
```

### Keyframe Animation Catalog

| Animation Name | Type | Animated Props | Use Hint |
|----------------|------|----------------|----------|
| `dot-xefpb8` | Fade | opacity | UI transition |
| `dot-kkmion` | Fade | opacity | UI transition |
| `dot-pulse-18sbrvj` | Fade | opacity | Attention / status |
| `overlayEnterLinaria-pxdfzy` | Fade | opacity | Element entrance |
| `overlayLeave-16a97i2` | Fade | opacity | Element exit |
| `fadeEnter-1yg1552` | Fade | opacity | Element entrance |
| `dls_sheets_fadeIn-1yg1552` | Fade | opacity | Element entrance |
| `dls_sheets_slideUp-1yg1552` | Slide | transform | Panel / drawer enter |
| `fadeLeave-1f0cb0c` | Fade | opacity | Element exit |
| `dls_sheets_fadeOut-1f0cb0c` | Fade | opacity | Element exit |
| `dls_sheets_slideDown-1f0cb0c` | Slide | transform | Panel / drawer enter |
| `dls_sheets_slideDownOut-1f0cb0c` | Fade + Move | transform, opacity | Panel / drawer enter |
| `slideEnter-1qxmz00` | Fade + Move | opacity, transform | Element entrance |
| `fadeEnter-v8n6sz` | Fade | opacity | Element entrance |
| `slideLeave-osd9gb` | Fade + Move | opacity, transform | Element exit |
| `fadeLeave-zj50hh` | Fade | opacity | Element exit |
| `animation-64e8c8` | Custom |  | UI transition |
| `fadeEnter-14e8nj2` | Fade | opacity | Element entrance |
| `dls_sheets_fadeIn-14e8nj2` | Fade | opacity | Element entrance |
| `dls_sheets_slideUp-14e8nj2` | Slide | transform | Panel / drawer enter |

> *180 additional animations omitted (repetitive variants). See raw keyframes in `raw-css.json`.*

### Motion Fingerprint

- **Speed Character**: Deliberate & Calm (median duration: `449ms`)
- **Dominant Easing**: physics-based spring curves
- **Animation Library**: 200 unique animations (200 total including variants)

> This design moves with deliberate & calm timing using physics-based spring curves, creating a UI that feels calm and controlled.

## 8. Do's and Don'ts

### Do
- Use Hof (`#222222`) for text — not pure black, it's warmer and more readable
- Use Airbnb Cereal VF 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 Rausch (`#ff385c`) as the primary accent — it's the brand's signature interactive color
- Use 32px border-radius on primary buttons — the brand uses generously-rounded CTAs
- Maintain nav height at 80px — consistent vertical space for the navigation bar
- Respect the 4px–32px spacing range — the design uses a wide scale for visual breathing room
- Make the hero full-viewport (≥70% screen height) — this design uses an immersive hero, not a tall navbar
- Build the hero as a split layout with media on the right — text and visual share equal weight
- Include exactly 18 CTAs in the hero (primary + secondary) — this design pattern is multi-action, not single-purpose
- Each card includes a top image — imagery is part of the card identity, not optional

### 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 use sharp-cornered or pill buttons — 32px is the CTA border-radius standard
- Don't collapse or hide the nav on scroll without an explicit scroll-triggered animation — the design uses fixed nav presence
- Don't make the nav sticky — this design lets it scroll away to maximize content focus


## 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 `#FF385C` for primary CTAs and brand-mark signals only"
    why: "Single chromatic assertion device — overuse dilutes meaning"
    test: "querySelectorAll('[style*=\"#FF385C\"]').length <= 3 per fold"
```

## 9. Responsive Behavior

### Breakpoints
| Name | Width | Key Changes |
|------|-------|-------------|
| Mobile | 368px | Single column, compact spacing |
| Mobile | 474px | Single column, compact spacing |
| Mobile Large | 650px | Expanded mobile layout |
| Mobile Large | 743px | Expanded mobile layout |
| Tablet | 1024px | Multi-column grids begin |
| Desktop | 1127px | Full feature layout |
| Desktop | 1280px | Full feature layout |
| Large Desktop | 1440px | Maximum content width |

### Token Diff — Desktop vs Mobile

| Element | Property | Desktop | Mobile |
|---------|----------|---------|--------|
| nav | height | `80px` | `125px` |
| button | width | `160px` | `26px` |

### Collapsing Strategy
- 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):

- **Hero collapses split-right-text → centered** — the side-by-side layout stacks vertically, with media moving above the text.
- **Hero CTAs:** 18 on desktop → 19 on mobile.
- **Footer columns collapse:** 3 columns (desktop) → 1 column (mobile).

## 9b. Visual Tone & Photography

**Tone:** Photography-driven

The site is dominated by photography (JPG/WebP). Photos carry the brand voice as much as the typography. Use authentic, brand-appropriate imagery — generic stock will degrade quality.

**Canonical Brand Image (OG):**
- https://a0.muscache.com/im/pictures/fe7217ff-0b24-438d-880d-b94722c75bf5.jpg
  *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: 1.05:1 (square / portrait)
- Rendered size: 180×171px
- *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): 0 (0%)
- Portrait (<0.87): 0 (0%)
- Square (0.87–1.15): 96 (100%)

**Media Format Mix:**
- JPG: 86 (typically photographic content)
- PNG: 10 (logos, transparent UI elements, mockups)

**Average rendered image size:** 180×171px
**Above-fold image count:** 16 / 96

**Decorative Patterns Detected:**
- 6 multi-stop linear gradients (mesh-like, 3+ color stops) — the brand leans on rich color transitions for visual depth
- **Glassmorphism** detected (`backdrop-filter: blur`) — layered transparent surfaces with blur, modern OS-like aesthetic

**Clone instruction for decorative work:** This is a gradient-rich design — invest in multi-stop CSS gradients (3+ color stops), not solid backgrounds.

**Imagery Guidance for clones:**
- Source authentic photography (or licensed stock that matches the brand mood) — placeholders will visibly degrade the clone.
- Match the dominant aspect ratio (see above) so card grids and hero compositions hold.

## 10. Agent Prompt Guide

### Quick Reference
- Background: White (`#ffffff`)
- Primary text: Hof (`#222222`)
- Accent: Rausch (`#ff385c`)
- Border: Foggy (`#6a6a6a`)
- Font: Airbnb Cereal VF
- Body: 14px weight 400

### Example Component Prompts
- "Create a hero section on White background (#ffffff). Headline at 28px Airbnb Cereal VF weight 700, line-height 1.43, color #222222."
- "Create the primary CTA button: `#ff385c` background, `#222222` text, 40px 4px 4px 40px border-radius, 11px 21px padding, 700 weight, Airbnb Cereal VF font."
- "Build navigation: relative on `#ffffff`. Airbnb Cereal VF 14px weight 400 for links."

### Iteration Guide
1. **Canvas**: Set the light canvas to White (`#ffffff`) — every component is composited against this exact base.
2. **Typography**: All type in Airbnb Cereal VF, weight range 400–700. Never exceed 700 — heavier weights break the brand's tonal restraint.
3. **Accent**: Rausch (`#ff385c`) is the sole interactive color. On hover → Luxe (`#460479`). Use CSS transitions, not opacity/brightness filters.
4. **Motion**: All transitions use physics-based spring curves. Timing: 449ms for micro-interactions, 584ms for layout changes. Never use linear for UI transitions — preserve the brand's easing personality.
5. **Shape**: CTAs at `32px`. Apply border-radius from the extracted scale only — don't invent intermediate values.
6. **Spacing**: Use the `--ca-space-*` token scale (4px–32px). All padding, margin, and gap values are multiples from this scale — no magic numbers.
7. **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-on-primary: #ffffff;
  --ca-surface-1: #ebebeb;
  --ca-surface-2: #f2f2f2;
  --ca-primary-focus: #222222;
  --ca-ink-subtle: #8c8c8c;
  --ca-primary: #ff385c;
  --ca-primary-hover: #460479;
  --ca-hairline: #6a6a6a;
  --ca-semantic-error: #b32505;
  --ca-semantic-success: #008a05;
  --ca-semantic-warning: #e07912;
  --ca-semantic-info: #428bff;
}

/* Typography */
:root {
  --ca-font-primary: "Airbnb Cereal VF", system-ui, sans-serif;
  --ca-text-display: 72px;
  --ca-text-body: 32px;
}

/* 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: 24px;
  --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: 14px;
  --ca-radius-lg: 20px;
  --ca-radius-xl: 32px;
  --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
    height: 5179px
    width: 1425px
    layout: block
    children: 1
  - section: header
    tag: header
    classes: ["c2zxfaj", "dir", "dir-ltr"]
    height: 96px
    width: 1425px
    layout: flex-row justify=space-between
    children: 4
    padding: "0px 48px"
  - section: navigation
    tag: nav
    classes: ["cg7l307", "dir", "dir-ltr"]
    height: 80px
    width: 213px
    layout: flex-row justify=flex-end
    children: 2
  - section: main-content
    tag: main
    classes: ["m1460ofs", "dir", "dir-ltr"]
    height: 4032px
    width: 1425px
    layout: block
    children: 1
  - section: section-8
    tag: section
    classes: ["imqckrr", "dir", "dir-ltr"]
    height: 242px
    width: 720px
    layout: block
    children: 1
    bg: "rgb(255, 255, 255)"
    padding: "16px"
  - section: footer
    tag: footer
    classes: ["f12ytkur", "dir", "dir-ltr"]
    height: 633px
    width: 1425px
    layout: block
    children: 1
    bg: "rgb(247, 247, 247)"
    padding: "0px 0px 80px"
  - section: section-4
    tag: section
    classes: ["se5ui3x", "dir", "dir-ltr"]
    height: 378px
    width: 432px
    layout: block
    children: 2
  - section: section-5
    tag: section
    classes: ["se5ui3x", "dir", "dir-ltr"]
    height: 378px
    width: 432px
    layout: block
    children: 2
  - section: section-6
    tag: section
    classes: ["se5ui3x", "dir", "dir-ltr"]
    height: 378px
    width: 432px
    layout: block
    children: 2
```

**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:
    - "Logements populaires · Marseille"
    - "Des idées pour vos prochaines escapades"
  sub-headings:
    - "Assistance"
  ctas:
    - "Dates
Quand ?"
    - "Devenir hôte"
  navigation:
    - "Logements
Logements"
  footer-links:
    - "Centre d'aide"
```

**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: 50
    avg-ratio: 1.05
    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">
  Dates
Quand ?
</button>
```
_Source pattern detected: padding `0px` · radius `32px` · weight `400`_

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


## 12. Known Extraction Gaps

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

- **1 parasitic shadow(s) detected** — colored box-shadows (not near-black) found in allShadows. These likely originate from browser extensions or third-party injected widgets (e.g. Grammarly, chat overlays), not from the site's own design system. Discard them when building.


---
## Extraction Completeness: 92/100 (A)

| Category | Score | Max | Detail |
|----------|-------|-----|--------|
| Colors & Palette | 25 | 25 | 19 named colors |
| Typography | 20 | 20 | 15 roles defined |
| Components | 20 | 20 | 5 specs extracted |
| Motion & Interaction | 12 | 15 | Keyframes present |
| CSS Custom Properties | 10 | 10 | 400 vars |
| Responsive Breakpoints | 5 | 5 | 8 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.

| Category | What's missing | Fallback strategy |
|----------|----------------|-------------------|
| **Dark mode** | No dark-mode CSS variables or media queries detected | Light mode is canonical; do not generate dark-mode variants unless explicitly requested |

### Per-section confidence

| Section | Confidence | Reason |
|---------|------------|--------|
| §1 Visual Theme | High | Body bg extracted via getComputedStyle() |
| §2 Colors | High | 400 CSS vars (semantic naming requires ≥20 for high) |
| §3 Typography | High | 15 typography roles inferred |
| §4 Components | High | 5 component variants captured |
| §7 Motion | High | Keyframes + transitions |
| §8 Do's/Don'ts | High | 18 rules generated; design-decisions.json has evidence per rule |
| §9 Responsive | High | 8 breakpoints detected |
| §9b Photography | High | 96 images, hero present |

---
*Generated by Clone Architect — automated Playwright extraction + design analysis.*
*Source: https://airbnb.com | 2026-05-30T20:38:22.412Z*
*All values verified via getComputedStyle() — no approximation, no hallucination.*