mobbin.com

DESIGN.md

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

---
version: alpha
name: mobbin.com
description: "Light product system built on #ffffff. Type anchored in saans at 80px / weight 652. Extracted automatically from https://mobbin.com/ — every value from getComputedStyle(), no approximation."
narrative: |
  mobbin.com is built on a pure-white canvas (rgb(255, 255, 255)).
  Fully-rounded CTAs (9999px) signal a friendly, tactile interaction model alongside saans as the primary typeface.

colors:
  background: "#ffffff"
  surface-1: "rgba(237, 237, 237, 0.72)"
  surface-2: "#f5f5f5"
  ink: "#141414"
  ink-muted: "rgba(20, 20, 20, 0.65)"
  ink-subtle: "#141414"
  hairline: "#c2c2c2"

typography:
  display-xl:
    fontFamily: "saans"
    fontSize: 80px
    fontWeight: 652
    lineHeight: 1
    letterSpacing: -0.6px
  body:
    fontFamily: "saans"
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.5
    letterSpacing: 0
  body-sm:
    fontFamily: "saans"
    fontSize: 16px
    fontWeight: 456
    lineHeight: 1.38
    letterSpacing: 0.2px
  button:
    fontFamily: "saans"
    fontSize: 16px
    fontWeight: 600
    lineHeight: 1.38
    letterSpacing: 0.2px

rounded:
  none: 0px
  xs: 12px
  sm: 12px
  md: 12px
  lg: 20px
  xl: 28px
  pill: 9999px

spacing:
  xxs: 2px
  xs: 4px
  sm: 8px
  md: 10px
  lg: 24px
  xl: 32px
  xxl: 116px
  section: 80px

components:
  button-ghost:
    backgroundColor: "transparent"
    textColor: "{colors.ink-subtle}"
    typography: "{typography.body}"
    rounded: "{rounded.xs}"
    padding: 0px 10px
  button-pill:
    backgroundColor: "{colors.ink-subtle}"
    textColor: "{colors.background}"
    typography: "{typography.body}"
    rounded: "{rounded.pill}"
    padding: 0px 16px
  button-pill:
    backgroundColor: "transparent"
    textColor: "{colors.ink-subtle}"
    typography: "{typography.body}"
    rounded: "{rounded.pill}"
    padding: 0px 16px
  navigation-main-nav:
    backgroundColor: "{colors.surface-1}"
    typography: "{typography.body}"
    rounded: "{rounded.none}"
    padding: 8px 24px

extracted_at: "2026-05-30T20:39:28.303Z"
completeness: 58
scoreVersion: "v2"

---

# Design System — mobbin.com
> Extracted automatically by Clone Architect from https://mobbin.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**: `N/A` for primary CTAs ONLY. Never decorative.
> - **Body type**: 16px (token: `typography.body`). Default for ALL text not in a heading role.
> - **Section rhythm**: 104px between major bands. Card padding: 24px.
> - **Default radius**: 12px 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

mobbin.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 **saans**, deployed with OpenType features enabled globally (`"calt" 0, "dlig", "ss07"`). These aren't decorative — they're load-bearing: without them, the typeface reverts to its generic state and the design loses its specific texture. Headlines use weight 652 for confident, assertive presence — the brand wants to be heard. Negative letter-spacing at display sizes (-0.6px at 80px) compresses headlines into engineered blocks, dense and precise. 

Body text reads in Jet Black (`#141414`) — softened from pure black, a small but deliberate detail that lowers reading friction (contrast ratio 12.8:1, well above WCAG AA). 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. 
Border radius varies from pill-shaped (fully rounded) to moderately rounded elements, creating visual rhythm. Motion design uses smooth easing curves for polished state transitions. 

**Key Characteristics:**
- Background: Pure White (`#ffffff`)
- Primary typeface: saans
- Primary text: Jet Black (`#141414`)
- Accent: Medium Gray (`#808080`)
- Display: 80px weight 652, letter-spacing -0.6px
- Shadow system: 3 distinct elevation levels
- Custom fonts loaded: saans, saans Fallback

## 2. Color Palette & Roles

### Background & Surface
- **Pure White** (`#ffffff`): Page background (primary)
- **Translucent Light Gray (72%)** (`rgba(237, 237, 237, 0.72)`): Surface / elevated background
- **Warm Cream** (`#f5f5f5`): Surface / elevated background

### Text & Content
- **Jet Black** (`#141414`): Primary body text
- **Pure Black** (`#000000`): Secondary text
- **Near Black** (`#1d1f27`): Secondary text

### Border & Divider
- **Silver** (`#c2c2c2`): Borders / dividers

### Full Extracted Palette
10 distinct colors detected on the live page (7 categorized above + 3 additional below). Every value is a real `getComputedStyle()` color — no approximation.

- `#707070` — Stone
- `rgba(64, 64, 64, 0.08)` — Translucent Dark Gray (8%)
- `#adadad` — Cool Gray

### CSS Custom Properties (Design Tokens)

**Shadow Token**
- `--tw-inset-shadow-alpha`: `100%`
- `--shadow-image-inset-value`: `inset 0 0 0 .5px #0000001a`
- `--tw-inset-ring-shadow`: `0 0 #0000`
- `--tw-inset-shadow`: `0 0 #0000`

**Background**
- `--color-background-tertiary`: `hsl(0 0% 25%/8%)`
- `--color-background-primary`: `hsl(0 0% 100%)`
- `--color-background-modal`: `hsl(0 0% 100%)`

**Spacing Token**
- `--tw-space-x-reverse`: `0`
- `--spacing-4`: `4px`
- `--tw-space-y-reverse`: `0`
- `--spacing-8`: `8px`

**Motion Token**
- `--default-transition-duration`: `.15s`
- `--default-transition-timing-function`: `cubic-bezier(.4,0,.2,1)`

**Border**
- `--color-border-secondary-hover`: `hsl(0 0% 25%/16%)`

**Font Family Token**
- `--default-font-family`: `"saans","saans Fallback",sans-serif`

**Text Color**
- `--color-text-primary`: `hsl(0 0% 8%)`

**Border Radius Token**
- `--radius-16`: `16px`

**Other tokens**
- `--default-font-feature-settings`: `"dlig" on,"ss07" on,"calt" off`
- `--background-primary`: `0 0% 100%`
- `--text-on-brand`: `0 0% 100%`
- `--text-link-primary-hover`: `212 100% 50%`
- `--text-link-secondary`: `0 0% 8%`
- `--glass-text-tertiary`: `0 0% 53%`
- `--text-on-warning`: `0 0% 100%`
- `--text-on-positive`: `0 0% 100%`

## 3. Typography Rules

### Font Families
- **Primary**: `saans`
- **Secondary**: `saans Fallback`

### Custom Fonts Loaded
- **saans** weight 100 900 (normal)
- **saans Fallback** weight normal (normal)

### Typography Hierarchy

| Role | Font | Size | Weight | Line Height | Letter Spacing | Notes |
|------|------|------|--------|-------------|----------------|-------|
| Display Hero | saans | 80px | 652 | 1 | -0.6px | Main headline (h1) |
| Body | saans | 16px | 400 | 1.5 | normal | Standard reading text |
| Button Large | saans | 16px | 600 | 1.38 | 0.2px | Button label (16px) |
| Link Large | saans | 16px | 456 | 1.38 | 0.2px | Link (16px) — Decoration: underline 1.12px |

### Full Font Size Scale

Sizes detected in the design (descending): `80px`, `56px`, `32px`, `24px`, `20px`, `16px`, `14px`

> 5 size(s) detected outside the sampled hierarchy (56px, 32px, 24px, 20px, 14px). 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:

- **contextual alternates** (`calt`) — connections between letters refined contextually
- **ligatures** — common letter pairs replaced with refined glyphs (fi, fl, etc.)

**Clone instruction:** Enable these in your CSS:
```css
body {
  font-feature-settings: "calt", "dlig", "ss07";
}
```

## 4. Component Stylings

### Buttons

**Ghost**
- Background: `transparent`
- Text: `#141414` `{colors.ink-subtle}`
- Padding: 0px 10px
- Radius: 12px
- Font: 16px weight 400
- Use: Subtle action, toolbar, nav button

**Pill**
- Background: `#141414` `{colors.ink-subtle}`
- Text: `#ffffff` `{colors.background}`
- Padding: 0px 16px
- Radius: 9999px
- Font: 16px weight 600
- Use: Status pills, tags, chips

**Pill**
- Background: `transparent`
- Text: `#141414` `{colors.ink-subtle}`
- Padding: 0px 16px
- Radius: 9999px
- Shadow: `rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0...`
- Font: 16px weight 600
- Use: Status pills, tags, chips

### Navigation

**Main Nav**
- Background: `rgba(237, 237, 237, 0.72)` `{colors.surface-1}`
- Padding: 8px 24px
- Radius: none
- Font: 16px weight 400
- Use: Fixed/sticky flex nav — N/A items


## 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(20, 20, 20)"
  link:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(20, 20, 20)"
  navLink:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(20, 20, 20)"
  footerLink:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(255, 255, 255)"
```

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

### Navigation
- **1 shape(s)** in this system: `Main Nav`
- **DO NOT introduce new navigation 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 | 10px |
| base | 16px |
| lg | 24px |
| xl | 32px |
| 2xl | 104px |
| 3xl | 116px |

### Border Radius Scale
| Name | Value | Use |
|------|-------|-----|
| None | 0px | No rounding |
| Xs | 12px | Tiny corners (badges, micro elements) |
| Sm | 12px | Buttons, inputs, small elements |
| Md | 12px | Cards, containers |
| Lg | 20px | Large rounded elements, pill segments |
| Xl | 28px | Category strips, featured containers |
| Full | 9999px | Pills, avatars, circular elements |

### Shape Language

| Component | Border Radius |
|-----------|---------------|
| Buttons | `12px` |
| Navigation | `none` |
| Page Body | `0px` |

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

**Full Radius Spectrum**: 0px, 12px, 16px, 20px, 24px, 28px, full/pill (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** | `116px` | 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** | `10px` | 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).

**5/8 structural patterns detected.**

### Hero Pattern

- **Composition:** centered — Centered composition — heading + subheading + CTAs stacked vertically, content centered horizontally. Common for SaaS marketing pages.
- **Viewport coverage:** full-viewport hero (≥70% screen height)
- **Heading:** "Discover real-world design inspiration." — 80px center-aligned
- **Subheading:** "Featuring over 1,000 iOS & Web apps, and 400 sites — New content weekly."
- **Media:** present, positioned top
- **CTAs:** 2 (primary: "Join for free")
- **Clone instruction:** Reproduce the **centered** layout. Use the heading font-size token at the documented size. Place media top of text.

### Navigation Pattern

- **Position:** static (scrolls with page)
- **Layout:** logo-left-links-right — Logo at far left, primary navigation links right-aligned
- **Height:** 60px
- **Logo:** ✓ present
- **Nav links:** 3 primary items
- **CTAs in nav:** 0 (no buttons — links only)
- **Clone instruction:** Build a static logo left links right navigation. Link-only — no button styling needed.

### Card Grid Pattern

- **Card count:** 20 cards detected
- **Columns (desktop):** 6-up grid
- **Card dimensions:** 225×529px (aspect 0.43:1)
- **Gap:** 24px between cards
- **Content:** ✓ image
- **Image position:** top
- **Clone instruction:** Build a 6-column grid (desktop) with cards at ~0.43:1 aspect ratio. Each card has an image at the top.

### Testimonial Pattern

- **Count:** 12 testimonial blocks
- **Layout:** grid
- **Avg quote length:** 181 chars (medium quote)
- **Includes:** ✗ no avatars | ✗ no logos | ✗ no ratings
- **Clone instruction:** Build a grid of 12 testimonials.   

### Footer Pattern

- **Columns:** 1
- **Links:** 14 total
- **Height:** 476px
- **Includes:** ✗ no newsletter | ✓ social icons |  ✓ copyright
- **Clone instruction:** Build a 1-column footer with ~14 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(0, 0, 0, 0) 0px 0px 0px 0px`,<br>`rgba(0, 0, 0, 0) 0px 0px 0px 0px`,<br>`rgba(0, 0, 0, 0) 0px 0px 0px 0px`,<br>`rgba(0, 0, 0, 0) 0px 0px 0px 0px`,<br>`oklab(0.37054 0.0000169128 0.00000742078 / 0.16) 0px 0px 0px 1px inset` | Buttons, pressed-state elements |
| Layered (Level 2) | <br>`rgba(0, 0, 0, 0) 0px 0px 0px 0px`,<br>`rgba(0, 0, 0, 0) 0px 0px 0px 0px`,<br>`rgba(0, 0, 0, 0) 0px 0px 0px 0px`,<br>`rgba(0, 0, 0, 0) 0px 0px 0px 0px`,<br>`rgba(0, 0, 0, 0.04) 0px 1px 2px 0px` | Cards, elevated surfaces |
| Layered (Level 3) | <br>`rgba(0, 0, 0, 0) 0px 0px 0px 0px`,<br>`rgba(0, 0, 0, 0) 0px 0px 0px 0px`,<br>`rgba(0, 0, 0, 0) 0px 0px 0px 0px`,<br>`rgba(0, 0, 0, 0) 0px 0px 0px 0px`,<br>`rgba(0, 0, 0, 0.04) 0px 8px 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-in` | `cubic-bezier(.4,0,1,1)` | Custom Ease — Balanced |
| `--default-transition-timing-function` | `cubic-bezier(.4,0,.2,1)` | Ease Out — Decelerating |
| `--ease-out` | `cubic-bezier(0,0,.2,1)` | Ease Out — Decelerating |
| `--ease-in-out` | `cubic-bezier(.4,0,.2,1)` | Ease Out — Decelerating |

### Duration Scale

| CSS Variable | Value | Tier |
|--------------|-------|------|
| `--default-transition-duration` | `.15s` | Fast |

### Copy-Paste Transition Snippets

**Opacity**
```css
transition: opacity 0.15s cubic-bezier(0, 0, 0.2, 1);
```

**Color / Background**
```css
transition: color 0.15s cubic-bezier(0, 0, 0.2, 1), background-color 0.15s cubic-bezier(0, 0, 0.2, 1), border-color 0.15s cubic-b...;
```

**Color / Background**
```css
transition: color 0.2s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.2s cubic-...;
```

**All Props**
```css
transition: width 0.2s cubic-bezier(0.4, 0, 0.2, 1), translate 0.2s cubic-bezier(0.4, 0, 0.2, 1);
```

### Keyframe Animation Catalog

| Animation Name | Type | Animated Props | Use Hint |
|----------------|------|----------------|----------|
| `SpinnerLoader_spinner-leaf-fade__i5qxr` | Fade | opacity | Loading indicator |
| `DotsLoader_dot-loader-fade__t00kw` | Fade | opacity | Loading indicator |
| `DotsLoader_spin__Agc_6` | Rotate / Spin | transform | Loading indicator |
| `enter` | Fade | opacity, translate, scale | Element entrance |
| `exit` | Fade | opacity, translate, scale | Element exit |
| `flash` | Fade | opacity | UI transition |
| `pulse` | Fade | opacity | Attention / status |
| `fade-out` | Fade | opacity | Element exit |
| `wiggle` | Slide | transform | Playful feedback |
| `shimmer` | Custom | background-position-x, background-position-y | Loading placeholder |
| `SavedAnimation_mobile_saved__1p1qS` | Fade + Move | opacity, transform, animation-timing-function, transform-origin | UI transition |
| `SavedAnimation_web_saved__1aCTm` | Fade + Move | opacity, transform, animation-timing-function, transform-origin | UI transition |
| `Ticker_move__3gnrj` | Slide | transform | UI transition |
| `FaqAccordionEntry_slide-down__odG4P` | Custom | height | Panel / drawer enter |
| `FaqAccordionEntry_slide-up__EV1IG` | Custom | height | Panel / drawer enter |
| `HeroSection_shine__G_05S` | Custom | left | UI transition |
| `ScreenCellMarquee_slide___4I_5` | Slide | transform | UI transition |
| `swipe-out-left` | Fade + Move | transform, opacity | Swipe gesture dismiss |
| `swipe-out-right` | Fade + Move | transform, opacity | Swipe gesture dismiss |
| `swipe-out-up` | Fade + Move | transform, opacity | Swipe gesture dismiss |

> *6 additional animations omitted (repetitive variants). See raw keyframes in `raw-css.json`.*

### Motion Fingerprint

- **Speed Character**: Balanced Pacing (median duration: `200ms`)
- **Dominant Easing**: custom cubic-bezier curves
- **Animation Library**: 26 unique animations (26 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 Jet Black (`#141414`) for text — not pure black, it's warmer and more readable
- Use saans as the primary typeface — it defines the brand personality
- Use weight 652 for the heaviest text — this design uses a custom heavy weight, not the standard 700 (bold)
- Use negative letter-spacing (-0.6px) at display sizes for compressed, editorial headlines
- Use the extracted shadow patterns for elevation — they are tuned to match the brand palette
- Use full-pill radius (9999px) only for specific elements (avatars, pills, toggles)
- Use pill-shaped radius (9999px) for primary CTA buttons — the brand uses fully-rounded, pill CTAs
- Maintain nav height at 60px — 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
- Include exactly 2 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
- Use a 6-column grid on desktop — density matters for this content type
- Lay out testimonials in a grid (12+ items) — quantity signals scale and trust

### 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 substitute weight 652 with the standard 700 — the custom value is part of the brand's type personality
- Don't increase letter-spacing on headings — the type is designed to run tight at scale
- Don't invent new shadow values — use only the extracted shadow levels
- Don't apply pill radius on rectangular buttons or cards — it's reserved for specific interactive elements
- Don't use rectangular buttons for primary actions — the rounded pill shape is the brand 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
- Don't put a CTA button in the nav — this design uses links only at the top
- Don't over-build the footer — this design keeps it minimal (1 cols, 14 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(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)'"
```

## 9. Responsive Behavior

### Breakpoints
| Name | Width | Key Changes |
|------|-------|-------------|
| Mobile Large | 600px | Expanded mobile layout |
| Mobile Large | 640px | Expanded mobile layout |
| Mobile Large | 719px | Expanded mobile layout |
| Tablet | 768px | Multi-column grids begin |
| Tablet | 1024px | Multi-column grids begin |
| Desktop | 1280px | Full feature layout |

### Token Diff — Desktop vs Mobile

| Element | Property | Desktop | Mobile |
|---------|----------|---------|--------|
| heading | font-size | `80px` | `44px` |
| heading | line-height | `80px` | `48px` |
| heading | letter-spacing | `-0.6px` | `-0.4px` |
| nav | display | `flex` | `none` |
| button | width | `auto` | `40px` |

### Collapsing Strategy
- Headlines: 80px → 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 10px 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: 6-up → 2-up** — cards stack as viewport narrows.

## 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://mobbin.com/og_image.png?v=4.0
  *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: 1.81:1 (landscape (16:9-ish))
- Rendered size: 1168×644px
- Alt text: "Preview image of the product interface"
- *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): 2 (4%)
- Portrait (<0.87): 20 (40%)
- Square (0.87–1.15): 28 (56%)

**Media Format Mix:**

**Average rendered image size:** 177×261px
**Above-fold image count:** 1 / 50

**Decorative Patterns Detected:**
- 1 multi-stop linear gradient (mesh-like, 3+ color stops) — the brand leans on rich color transitions for visual depth
- 50 background patterns (non-photo url() backgrounds) — textures/illustrations as backdrops
- **Glassmorphism** detected (`backdrop-filter: blur`) — layered transparent surfaces with blur, modern OS-like aesthetic

**Clone instruction for decorative work:** Glassmorphism is a brand signature — use `backdrop-filter: blur(20px)` on overlapping surfaces.

**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: Jet Black (`#141414`)
- Accent: Ring Blue (`#3b82f6`)
- Border: Silver (`#c2c2c2`)
- Font: saans
- Body: 16px weight 400

### Example Component Prompts
- "Create a hero section on Pure White background (#ffffff). Headline at 80px saans weight 652, line-height 1, letter-spacing -0.6px, color #141414."
- "Create the primary CTA button: `transparent` background, `#141414` text, 12px border-radius, 0px 10px padding, 652 weight, saans font."
- "Build navigation: absolute on `#ffffff`. saans 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 saans, weight range 400–652. Never exceed 652 — heavier weights break the brand's tonal restraint.
3. **Motion**: All transitions use `cubic-bezier(0,0,0.2,1)`. Timing: 150ms for micro-interactions, 150ms for layout changes. Never use linear for UI transitions — preserve the brand's easing personality.
4. **Shape**: CTAs at `9999px`. 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-background: #ffffff;
  --ca-surface-1: #ededed;
  --ca-surface-2: #f5f5f5;
  --ca-ink-subtle: #141414;
  --ca-hairline: #c2c2c2;
}

/* Typography */
:root {
  --ca-font-primary: "saans", system-ui, sans-serif;
  --ca-text-display: 80px;
  --ca-text-body: 16px;
  --ca-text-small: 16px;
  --ca-text-button: 16px;
}

/* Spacing & Radius */
:root {
  --ca-space-xxs: 2px;
  --ca-space-xs: 4px;
  --ca-space-sm: 8px;
  --ca-space-md: 10px;
  --ca-space-base: 16px;
  --ca-space-lg: 24px;
  --ca-space-xl: 32px;
  --ca-space-2xl: 104px;
  --ca-space-3xl: 116px;
  --ca-radius-none: 0px;
  --ca-radius-xs: 12px;
  --ca-radius-sm: 12px;
  --ca-radius-md: 12px;
  --ca-radius-lg: 20px;
  --ca-radius-xl: 28px;
  --ca-radius-full: 9999px;
}

/* Motion */
:root {
  --ca-ease-in: cubic-bezier(.4,0,1,1);
  --ca-ease-out: cubic-bezier(0,0,.2,1);
  --ca-ease-in-out: cubic-bezier(.4,0,.2,1);
}
```


## 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: ["isolate", "flex", "flex-col", "[--max-content-width:1280px]"]
    height: 10691px
    width: full-bleed
    layout: flex-column justify=normal
    children: 3
  - section: main-content
    tag: main
    classes: ["overflow-clip", "rounded-b-32", "bg-background-primary"]
    height: 10247px
    width: full-bleed
    layout: block
    children: 8
    bg: "rgb(255, 255, 255)"
  - section: section-3
    tag: section
    classes: ["grid", "place-items-center", "px-20", "pt-[108px]"]
    height: 862px
    width: full-bleed
    layout: grid: 1-col gap=normal
    children: 3
    padding: "180px 0px 96px"
  - section: footer
    tag: footer
    classes: ["min-720:sticky", "min-720:bottom-0", "min-720:-z-10", "min-720:[--top-overlap:32px]"]
    height: 476px
    width: full-bleed
    layout: grid: 1-col gap=normal
    children: 1
    bg: "rgb(20, 20, 20)"
    padding: "104px 116px 28px"
  - section: section-4
    tag: section
    classes: ["grid", "place-items-center", "min-1280:px-32"]
    height: 724px
    width: full-bleed
    layout: grid: 1-col gap=normal
    children: 1
    padding: "0px 32px"
  - section: section-5
    tag: section
    classes: ["sticky", "top-0", "grid", "place-items-center"]
    height: 900px
    width: full-bleed
    layout: grid: 1-col gap=normal
    children: 2
    padding: "0px 80px"
  - section: section-6
    tag: section
    classes: ["grid", "place-items-center", "pt-40", "pb-64"]
    height: 1017px
    width: full-bleed
    layout: grid: 1-col gap=normal
    children: 3
    padding: "120px 0px 116px"
  - section: section-7
    tag: section
    classes: ["grid", "place-items-center", "gap-y-40", "px-20"]
    height: 1005px
    width: full-bleed
    layout: grid: 1-col gap=80px normal
    children: 2
    padding: "120px 116px"
  - section: section-8
    tag: section
    classes: ["grid", "w-full", "place-items-center", "gap-y-40"]
    height: 860px
    width: full-bleed
    layout: grid: 1-col gap=80px normal
    children: 2
    padding: "120px 116px"
  - section: section-9
    tag: section
    classes: ["relative", "grid", "place-items-center", "gap-y-40"]
    height: 1282px
    width: full-bleed
    layout: grid: 1-col gap=80px normal
    children: 3
    padding: "120px 116px"
  - section: section-10
    tag: section
    classes: ["grid", "place-items-center", "pt-40", "pb-[120px]"]
    height: 898px
    width: full-bleed
    layout: grid: 1-col gap=normal
    children: 4
    bg: "rgb(255, 255, 255)"
    padding: "120px 0px 210px"
```

**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:
    - "A growing library of
1 704 apps
588 100 screens
135 100 flows"
    - "Find design patterns in seconds."
    - "From inspiration to creation."
  ctas:
    - "Join for free"
    - "See our plans"
    - "Screens"
    - "UI Elements"
  navigation:
    - "Pricing"
    - "Awards"
    - "Log in"
    - "Mobbin"
    - "Changelog"
    - "Careers"
    - "Merch"
    - "Support"
    - "Join for free"
  footer-links:
    - "Explore"
    - "Privacy policy"
```

**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:
  hero:
    count: 2
    avg-ratio: 1.81
    common-aspect: "~16:9 landscape"
    sample-alts:
      - "Preview image of the product interface"
      - "Preview image of the product interface"
  editorial:
    count: 20
    avg-ratio: 0.46
    common-aspect: "~9:21 tall"
    sample-alts:
      - "Profile"
      - "Wallet"
      - "Welcome"
  thumbnail:
    count: 13
    avg-ratio: 1.00
    common-aspect: "~1:1 square"
    sample-alts:
      - "Dropbox logo"
      - "ChatGPT logo"
      - "Headspace logo"
```

**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">
  Join for free
</button>
```
_Source pattern detected: padding `0px 16px` · radius `9999px` · weight `600`_

**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:*

- **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.


---
## Extraction Completeness: 58/100 (D)

| Category | Score | Max | Detail |
|----------|-------|-----|--------|
| Colors & Palette | 10 | 25 | 7 named colors |
| Typography | 10 | 20 | 4 roles defined |
| Components | 8 | 20 | 2 specs extracted |
| Motion & Interaction | 15 | 15 | Keyframes present, easing vars |
| CSS Custom Properties | 10 | 10 | 279 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.

| 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 |
| **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 | 279 CSS vars (semantic naming requires ≥20 for high) |
| §3 Typography | Medium | 4 typography roles inferred |
| §4 Components | Low | 2 component variants captured |
| §7 Motion | High | Keyframes + transitions |
| §8 Do's/Don'ts | High | 25 rules generated; design-decisions.json has evidence per rule |
| §9 Responsive | High | 6 breakpoints detected |
| §9b Photography | High | 50 images, hero present |

---
*Generated by Clone Architect — automated Playwright extraction + design analysis.*
*Source: https://mobbin.com | 2026-05-30T20:39:28.312Z*
*All values verified via getComputedStyle() — no approximation, no hallucination.*