ghost.org

DESIGN.md

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

---
version: alpha
name: ghost.org
description: "Light product system built on #ffffff with #d1ff19 as the primary CTA accent. Type anchored in InterDisplay at 96px / weight 700. Extracted automatically from https://ghost.org/ — rendered styles via getComputedStyle() + CSS custom properties (token-only values may not be painted)."
narrative: |
  ghost.org is built on a pure-white canvas (rgb(255, 255, 255)).
  The system uses rgb(209, 255, 25) as the high-saturation accent for primary actions.
  InterDisplay as the primary typeface.
  A layered elevation system (7 distinct shadows) building a clear front-to-back hierarchy.
  Interactions are smoothed by transitions across many elements, with little or no keyframe animation.

colors:
  background: "#ffffff"
  surface-1: "#ffffff"
  surface-2: "#e2e8f0"
  ink-muted: "#1a2e05"
  primary: "#d1ff19"
  on-primary: "#111111"
  primary-hover: "#f3f4f6"
  hairline: "#cbd5e1"

typography:
  display-xl:
    fontFamily: "InterDisplay, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 96px
    fontWeight: 700
    lineHeight: 1
    letterSpacing: -2.4px
  display-md:
    fontFamily: "InterDisplay, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 36px
    fontWeight: 700
    lineHeight: 1
    letterSpacing: -0.9px
  body:
    fontFamily: "InterVariable, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 15px
    fontWeight: 400
    lineHeight: 1.5
    letterSpacing: 0
  body-sm:
    fontFamily: "InterDisplay, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 36px
    fontWeight: 600
    lineHeight: 1.5
    letterSpacing: -0.9px
  button:
    fontFamily: "InterVariable, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 15px
    fontWeight: 500
    lineHeight: 1.5
    letterSpacing: 0

rounded:
  none: 0px
  xs: 4px
  sm: 8px
  md: 12px
  lg: 16px
  xl: 24px
  pill: 9999px

spacing:
  xxs: 2px
  xs: 8px
  sm: 16px
  md: 23px
  lg: 40px
  xl: 45px
  xxl: 90px

components:
  button-ghost:
    backgroundColor: "transparent"
    textColor: "#000000"
    typography: "{typography.body}"
    rounded: "{rounded.xs}"
    padding: 8px
  button-ghost-2:
    backgroundColor: "transparent"
    textColor: "#000000"
    typography: "{typography.body}"
    rounded: "{rounded.xs}"
  button-dark--solid:
    backgroundColor: "#15171a"
    textColor: "{colors.surface-1}"
    typography: "{typography.body}"
    rounded: "{rounded.xs}"
    padding: 8px 16px
  cta-banner-full-width-cta:
    backgroundColor: "#15171a"
    textColor: "{colors.surface-1}"
    typography: "{typography.body}"
    rounded: "{rounded.xs}"
    padding: 8px 16px

extracted_at: "2026-06-11T05:42:18.690Z"
completeness: 59
scoreVersion: "v2"

---

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


## 0. Design DNA

**Density**: sparse  |  **Motion**: subtle  |  **Weight**: heavy  |  **Aesthetic**: soft-rounded

| Dimension | Value | Signal |
|---|---|---|
| Canvas | neutral | `#ffffff` |
| Type posture | sans-led (InterVariable) | "Turn your audience" |
| Color assertion | dual-accent | #d1ff19 |
| Whitespace | sparse | section rhythm 72px |
| Interaction | subtle | 0 keyframes, 5 transitions |
| Radius language | soft-pill | from token scale |

**Prism fingerprint**: `neutral-canvas · sans-display · dual-accent · soft-pill · subtle-motion`

> **🤖 TL;DR for AI agents** (read this first — saves you scanning the full doc):
>
> - **Canvas**: `rgb(255, 255, 255)` is the page background. Every component composits against this.
> - **Accent**: `rgb(209, 255, 25)` for primary CTAs ONLY. Never decorative.
> - **Body type**: 15px (token: `typography.body`). Default for ALL text not in a heading role.
> - **Section rhythm**: 72px between major bands. Card padding: 40px.
> - **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

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

Headlines are set in **InterDisplay**, a sans-serif display face (the dominant type signature, e.g. "Turn your audience" at 96px). Body text is set in **InterVariable**, deployed with OpenType features enabled globally (`"calt", "cv10", "cv11", "liga", "ss01", "ss03"`). 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 700 for confident, assertive presence — the brand wants to be heard. Negative letter-spacing at display sizes (-2.4px at 96px) compresses headlines into engineered blocks, dense and precise. 

Body text reads in Pure Black (`#000000`) (contrast ratio 21.0:1, well above WCAG AA). **Lime** (`#d1ff19`) 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 (7 distinct) — each combines several blurred layers at varying offsets to build a clear front-to-back hierarchy. 
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: InterVariable
- Accent: Lime (`#d1ff19`)
- Display: 96px weight 700, letter-spacing -2.4px
- Shadow system: 7 distinct elevation levels
- Custom fonts loaded: InterVariable, inter, interdisplay

## 2. Color Palette & Roles

### Background & Surface
- **Pure White** (`#ffffff`): Page background (primary)
- **Whitesmoke** (`#e5e7eb`): Surface / elevated background
- **Light Gray** (`#e2e8f0`): Surface / elevated background
- **Whitesmoke** (`#e5e5e5`): Surface / elevated background
- **Off-White** (`#f9fafb`): Surface / elevated background

### Text & Content
- **Pure Black** (`#000000`): Primary body text
- **Base** (`#15171a`): Secondary text
- **Near Black** (`#112220`): Secondary text
- **Deep Navy** (`#0f172a`): Secondary text
- **Dark Gray** (`#334155`): Secondary text

### Accent & Interactive
- **#fec137** (`#fec137`): Interactive / accent
- **Slate Gray** (`#64748b`): Interactive / accent
- **Lime** (`#d1ff19`): Interactive / accent
- **Light Blue** (`#cbd5e1`): Interactive / accent
- **Pink** (`#f8b1e2`): Interactive / accent
- **Sky Bright** (`#1bb6eb`): Interactive / accent
- **#2862ae** (`#2862ae`): Interactive / accent

### Border & Divider
- **Light Blue** (`#bfd0dc`): Borders / dividers

### Full Extracted Palette
**33 colors rendered on the page** + **11** more declared in design tokens (CSS custom properties — not necessarily painted). (18 categorized above + 26 additional below.)
Rendered values are read via `getComputedStyle()`; token values come from CSS variable declarations. Third-party logo colors are filtered out.

- `#18181b` — Near-Black
- `#ff0000` — Red
- `#1f2937` — Charcoal
- `#94a3b8` — Cool Gray
- `#1a2e05` — Warm Brown
- `#bef264` — #bef264
- `#9ca3af` — Cool Gray
- `#151719` — Near-Black
- `#6b7280` — Slate Gray
- `#ff247d` — Pink
- `#5dcf1f` — Green
- `rgba(34, 52, 59, 0.15)` — Translucent Charcoal (15%)
- `#738a94` — Midgrey
- `#ff237d` — Ruby
- `#4b5563` — Slate
- `#343f44` — Darkgrey *(token)*
- `#f1f2f3` — Wash *(token)*
- `#009c7e` — Teal *(token)*
- `#ffd400` — Yellow *(token)*
- `rgba(59, 130, 246, 0.5)` — Translucent Ring Blue (50%) *(token)*
- `#e5eff5` — Whitegrey *(token)*
- `#c5d2d9` — Lightgrey *(token)*
- `#f05230` — Red *(token)*
- `#3eb0ef` — Blue *(token)*
- `#ad26b4` — Purple *(token)*
- `#f3f4f6` — Off-White *(token)*

### CSS Custom Properties (Design Tokens)

**Shadow Token**
- `--tw-ring-offset-shadow`: `0 0 #0000`
- `--tw-ring-shadow`: `0 0 #0000`
- `--tw-drop-shadow`: ``
- `--tw-shadow`: `0 0 #0000`

**Spacing Token**
- `--tw-numeric-spacing`: ``
- `--tw-border-spacing-x`: `0`
- `--tw-border-spacing-y`: `0`

**Warning**
- `--color-yellow`: `#ffd400`

**Error / Destructive**
- `--color-red`: `#f05230`

**Success**
- `--color-green`: `#5dcf1f`

**Other tokens**
- `--color-darkgrey`: `#343f44`
- `--color-wash`: `#f1f2f3`
- `--color-midgrey`: `#738a94`
- `--color-lime`: `#d1ff19`
- `--color-teal`: `#009c7e`
- `--tw-ring-color`: `rgba(59,130,246,.5)`
- `--font-sans-serif`: `"InterVariable",sans-serif`
- `--tw-ring-offset-color`: `#fff`

## 3. Typography Rules

### Font Families
- **Primary**: `InterVariable`
- **Secondary**: `InterDisplay`
- **Font 3**: `inter`

### Custom Fonts Loaded
- **InterVariable** weight 100 900 (normal)
- **inter** weight 100 (normal)
- **inter** weight 200 (normal)
- **inter** weight 300 (normal)
- **inter** weight 400 (normal)
- **inter** weight 500 (normal)
- **inter** weight 600 (normal)
- **inter** weight 700 (normal)
- **inter** weight 800 (normal)
- **inter** weight 900 (normal)
- **interdisplay** weight 100 (normal)
- **interdisplay** weight 200 (normal)
- **interdisplay** weight 300 (normal)
- **interdisplay** weight 400 (normal)
- **interdisplay** weight 500 (normal)
- **interdisplay** weight 600 (normal)
- **interdisplay** weight 700 (normal)
- **interdisplay** weight 800 (normal)
- **interdisplay** weight 900 (normal)

### Typography Hierarchy

| Role | Font | Size | Weight | Line Height | Letter Spacing | Notes |
|------|------|------|--------|-------------|----------------|-------|
| Display Hero | InterDisplay | 96px | 700 | 1 | -2.4px | Main headline (h1) |
| Sub-heading | InterDisplay | 36px | 700 | 1 | -0.9px | Third-level heading (h3) |
| Link Large | InterDisplay | 36px | 600 | 1.5 | -0.9px | Link (36px) — Decoration: none |
| Body | InterVariable | 15px | 400 | 1.5 | normal | Standard reading text |
| Button | InterVariable | 15px | 500 | 1.5 | normal | Button label (15px) |
| Button | InterVariable | 14px | 400 | 1.5 | normal | Button label (14px) |

### Full Font Size Scale

Sizes detected in the design (descending): `96px`, `72px`, `48px`, `36px`, `26px`, `24px`, `20px`, `19px`, `18px`, `15px`, `14px`, `12px`, `10px`

> 9 size(s) detected outside the sampled hierarchy (72px, 48px, 26px, 24px, 20px, 19px, 18px, 12px, 10px). 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:

- **stylistic sets** (`ss0X`) — alternate letterforms enabled (often for brand-specific glyph variants)
- **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", "cv10", "cv11", "liga", "ss01", "ss03";
}
```

## 4. Component Stylings

### Buttons

**Ghost**
- Background: `transparent`
- Text: `rgba(0, 0, 0, 0.7)`
- Padding: 8px
- Radius: 6px
- Font: 15px weight 400
- Use: Subtle action, toolbar, nav button

**Ghost**
- Background: `transparent`
- Text: `rgba(0, 0, 0, 0.7)`
- Padding: 0px
- Radius: 6px
- Font: 15px weight 500
- Use: Subtle action, toolbar, nav button

**Dark / Solid**
- Background: `#15171a`
- Text: `#ffffff` `{colors.surface-1}`
- Padding: 8px 16px
- Radius: 6px
- Border: 1px solid rgba(0, 0, 0, 0)
- Shadow: `rgba(0, 0, 0, 0.1) 0px 0px 1px 0px, rgba(0, 0, 0, 0.03) 0px 2px 6px 0px`
- Font: 14px weight 400
- Use: Solid dark CTA

**Primary Brand**
- Background: `#ff0000`
- Text: `#000000`
- Padding: 8px
- Radius: 24px
- Border: 1px solid rgb(229, 229, 229)
- Shadow: `rgba(0, 0, 0, 0.1) 0px 10px 15px -3px, rgba(0, 0, 0, 0.1) 0px 4px 6px -4px`
- Font: 15px weight 400
- Use: Primary CTA / brand action

**Secondary**
- Background: `#1a2e05` `{colors.ink-muted}`
- Text: `#bef264`
- Padding: 8px 16px
- Radius: 8px
- Font: 15px weight 600
- Use: Secondary action

### CTA Banners

**Full-width CTA**
- Background: `#15171a`
- Text: `#ffffff` `{colors.surface-1}`
- Padding: 8px 16px
- Radius: 6px
- Font: 14px weight 400
- Use: Full-width conversion strip with headline + button


## 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: "rgba(0, 0, 0, 0.7)"
  link:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(0, 0, 0)"
  navLink:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(0, 0, 0)"
```

**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
- **4 shape(s)** in this system: `Ghost`, `Dark / Solid`, `Primary Brand`, `Secondary`
- **DO NOT introduce new buttons variants** without justification

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

## 5. Layout Principles

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

### Grid
Single column, centered content

### Max Width
1200px

### Spacing System
Generous spacing — editorial breathing room

| Token | Value |
|-------|-------|
| xxs | 2px |
| xs | 8px |
| sm | 16px |
| md | 23px |
| base | 24px |
| lg | 40px |
| xl | 45px |
| 2xl | 72px |
| 3xl | 90px |

### 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 | 16px | Large rounded elements, pill segments |
| Xl | 24px | Category strips, featured containers |
| Full | 9999px | Pills, avatars, circular elements |

### Shape Language

| Component | Border Radius |
|-----------|---------------|
| Buttons | `6px` |
| CTA Banners | `6px` |
| Page Body | `0px` |
| Navigation | `0px` |

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

**Full Radius Spectrum**: 4px, 6px, 8px, 12px, 16px, 24px, full/pill (from `allBorderRadii` scan)


## 5b. Spacing Rhythm Names

**Measured section padding**: bands use ~72px internal vertical padding (up to 126px) — **generous**. (Distinct from the gap *between* sections above.) Reproduce this generous vertical breathing room; cramped spacing is the #1 tell of a cheap clone.

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

| Name | Value | Use case |
|------|-------|----------|
| **hero** | `90px` | Top/bottom of full-bleed hero sections |
| **section** | `45px` | Between major bands (color change, content shift) |
| **subsection** | `40px` | Within a section, between content groups |
| **card** | `23px` | Card padding, list-item spacing |
| **compact** | `16px` | Form fields, tight clusters, badge padding |
| **micro** | `8px` | 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:** centered — Centered composition — heading + subheading + CTAs stacked vertically, content centered horizontally. Common for SaaS marketing pages.
- **Viewport coverage:** 243px tall (not full-viewport)
- **Heading:** "Turn your audience into a business." — 96px center-aligned
- **CTAs:** 1 (primary: "Just launched: Ghost 6.0 →")
- **Clone instruction:** Reproduce the **centered** layout. Use the heading font-size token at the documented size. Pair the centered text with the hero’s decorative visual (gradient / SVG / hero image — see §9b), not bare text.

### Navigation Pattern

- **Position:** static (scrolls with page)
- **Layout:** unknown — Layout not classified
- **Height:** 23px
- **Logo:** ✓ present
- **Nav links:** 2 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:** 4 cards detected
- **Columns (desktop):** 1-up grid
- **Card dimensions:** 1392×409px (aspect 3.4:1)
- **Gap:** 80px between cards
- **Content:** ✓ image
- **Image position:** none
- **Clone instruction:** Build a 1-column grid (desktop) with cards at ~3.4:1 aspect ratio. Each card has an image at the none.

### Footer Pattern

- **Columns:** 2
- **Links:** 7 total
- **Height:** 178px
- **Includes:** ✗ no newsletter | ✓ social icons |  ✓ copyright
- **Clone instruction:** Build a 2-column footer with ~4 links per column, social media links, and a copyright line.

## 6. Depth & Elevation

| Level | Treatment | Use |
|-------|-----------|-----|
| Flat (Level 0) | No shadow | Page background, content blocks |
| Layered (Level 1) | <br>`rgba(0, 0, 0, 0.05) 0px 0px 0px 1px` | Cards, elevated surfaces |
| Layered (Level 2) | <br>`rgba(0, 0, 0, 0.1) 0px 0px 1px 0px`,<br>`rgba(0, 0, 0, 0.03) 0px 2px 6px 0px` | Cards, elevated surfaces |
| Layered (Level 3) | <br>`rgba(0, 0, 0, 0.05) 0px 0px 0px 1px`,<br>`rgba(0, 0, 0, 0.1) 0px 10px 15px -3px`,<br>`rgba(0, 0, 0, 0.1) 0px 4px 6px -4px` | Cards, elevated surfaces |
| Layered (Level 4) | <br>`rgba(0, 0, 0, 0.1) 0px 4px 6px -1px`,<br>`rgba(0, 0, 0, 0.1) 0px 2px 4px -2px` | 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 |
|-------|---------------|
| `cubic-bezier(0.4,0,0.2,1)` | Material Standard — Balanced |

### Duration Scale

| Value | Tier | Typical Use |
|-------|------|-------------|
| `150ms` | Fast | Hover states, micro-interactions |
| `300ms` | Normal | Panel open/close, navigation |
| `400ms` | Slow | Hero animations, page transitions |

### Copy-Paste Transition Snippets

**Color / Background**
```css
transition: color 0.15s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.15s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.15s cub...;
```

**All Props**
```css
transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
```

**All Props**
```css
transition: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
```

### Motion Fingerprint

- **Speed Character**: Deliberate & Calm (median duration: `300ms`)
- **Dominant Easing**: custom cubic-bezier curves

> This design moves with deliberate & calm timing using custom cubic-bezier curves, creating a UI that feels calm and controlled.

## 8. Do's and Don'ts

### Do
- Use InterVariable as the primary typeface — it defines the brand personality
- Use negative letter-spacing (-2.4px) 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 Lime (`#d1ff19`) as the primary accent — it's the brand's signature interactive color
- Use pill-shaped radius (9999px) for primary CTA buttons — the brand uses fully-rounded, pill CTAs
- Use a single primary CTA in the hero — the design intentionally avoids choice paralysis
- Each card includes a none image — imagery is part of the card identity, not optional

### Don't
- Don't substitute with generic sans-serif or serif — the custom font carries the brand
- 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 introduce additional saturated accent colors — the palette is intentionally controlled
- Don't use rectangular buttons for primary actions — the rounded pill shape is the brand standard
- 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 (2 cols, 7 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)'"
  - id: brand-accent-001
    type: do
    rule: "Reserve `rgb(209, 255, 25)` for primary CTAs and brand-mark signals only"
    why: "Single chromatic assertion device — overuse dilutes meaning"
    test: "querySelectorAll('[style*=\"rgb(209, 255, 25)\"]').length <= 3 per fold"
```

## 9. Responsive Behavior

### Breakpoints
| Name | Width | Key Changes |
|------|-------|-------------|
| Mobile | 400px | Single column, compact spacing |
| Mobile Large | 500px | Expanded mobile layout |
| Mobile Large | 640px | Expanded mobile layout |
| Tablet | 768px | Multi-column grids begin |
| Tablet | 1000px | Multi-column grids begin |
| Desktop | 1280px | Full feature layout |

### Token Diff — Desktop vs Mobile

| Element | Property | Desktop | Mobile |
|---------|----------|---------|--------|
| heading | font-size | `96px` | `25.35px` |
| heading | line-height | `96px` | `25.35px` |
| heading | letter-spacing | `-2.4px` | `-0.63375px` |
| nav | display | `flex` | `none` |
| nav | height | `22.5px` | `auto` |
| button | width | `auto` | `36px` |

### Collapsing Strategy
- Headlines: 96px → 25.35px 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: 8px 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):

*No major structural differences detected between desktop and mobile widgets. The same blueprints scale rather than collapse — verify by inspecting actual mobile render.*


## 7c. Visual Effects & Dynamic Behavior

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

- **Glassmorphism** — 2 frosted/blur layer(s) (e.g. `blur(4px)`).

> **Motion fingerprint**: glassmorphism (2 layers)

## 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://ghost.org/images/meta/ghost-6.png (1280×640px)
  *This is the image shown when the site is shared on social media — represents the brand visual essence.*

**Aspect Ratio Distribution:**
- Landscape (1.15–2.3): 29 (48%)
- Portrait (<0.87): 0 (0%)
- Square (0.87–1.15): 32 (52%)

**Media Format Mix:**
- WebP: 43 (optimized photo/illustration hybrid)
- PNG: 18 (logos, transparent UI elements, mockups)

**Average rendered image size:** 231×174px
**Above-fold image count:** 0 / 61

**Decorative Patterns Detected:**
- 2 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:** Glassmorphism is a brand signature — use `backdrop-filter: blur(20px)` on overlapping surfaces.

**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: Pure White (`#ffffff`)
- Primary text: Pure Black (`#000000`)
- Accent: Lime (`#d1ff19`)
- Border: Light Blue (`#cbd5e1`)
- Font: InterVariable
- Body: 15px weight 400

### Example Component Prompts
- "Create a hero section on Pure White background (#ffffff). Headline at 96px InterVariable weight 700, line-height 1, letter-spacing -2.4px, color #000000."
- "Create the primary CTA button: `#d1ff19` background, `#000000` text, 9999px border-radius, 8px 3px padding, 700 weight, InterVariable font."
- "Build navigation: static on `#ffffff`. InterVariable 15px 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 InterVariable, weight range 400–700. Never exceed 700 — heavier weights break the brand's tonal restraint.
3. **Accent**: Lime (`#d1ff19`) is the sole interactive color. On hover → #fec137 (`#fec137`). Use CSS transitions, not opacity/brightness filters.
4. **Motion**: All transitions use `cubic-bezier(0.4,0,0.2,1)`. Never use linear for UI transitions — preserve the brand's easing personality.
5. **Shape**: CTAs at `6px`. Apply border-radius from the extracted scale only — don't invent intermediate values.
6. **Spacing**: Use the `--ca-space-*` token scale (8px–45px). 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-surface-1: #ffffff;
  --ca-surface-2: #e2e8f0;
  --ca-ink-muted: #1a2e05;
  --ca-primary: #d1ff19;
  --ca-on-primary: #111111;
  --ca-primary-hover: #f3f4f6;
  --ca-hairline: #cbd5e1;
}

/* Typography */
:root {
  --ca-font-primary: "InterDisplay", system-ui, sans-serif;
  --ca-text-display: 96px;
  --ca-text-body: 15px;
  --ca-text-small: 36px;
  --ca-text-button: 15px;
}

/* Spacing & Radius */
:root {
  --ca-space-xxs: 2px;
  --ca-space-xs: 8px;
  --ca-space-sm: 16px;
  --ca-space-md: 23px;
  --ca-space-base: 24px;
  --ca-space-lg: 40px;
  --ca-space-xl: 45px;
  --ca-space-2xl: 72px;
  --ca-space-3xl: 90px;
  --ca-radius-none: 0px;
  --ca-radius-xs: 4px;
  --ca-radius-sm: 8px;
  --ca-radius-md: 12px;
  --ca-radius-lg: 16px;
  --ca-radius-xl: 24px;
  --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: hero
    tag: div
    classes: ["max-w-full", "overflow-x-clip", "relative", "my-0"]
    height: 14715px
    width: full-bleed
    layout: block
    children: 4
    bg: "rgb(255, 255, 255)"
    vertical-padding: ~126px (airy)
  - section: header
    tag: header
    classes: ["relative", "bg-[var(--header-bg)]"]
    height: 94px
    width: full-bleed
    layout: block
    children: 2
    bg: "rgb(255, 255, 255)"
  - section: feature-section
    tag: div
    classes: ["mt-[16vmin]", "mx-auto", "max-w-8xl", "px-4"]
    height: 243px
    width: 1400px
    layout: flex-column justify=normal
    children: 2
    padding: "0px 16px"
  - section: feature-section
    tag: main
    height: 13268px
    width: full-bleed
    layout: block
    children: 13
    vertical-padding: ~104px (airy)
  - section: unknown
    tag: div
    classes: ["relative", "mt-[8vmin]", "px-4", "sm:px-6"]
    height: 850px
    width: full-bleed
    layout: block
    children: 2
    padding: "0px 24px"
  - section: content-section
    tag: div
    classes: ["relative", "bg-white", "pb-[12vmin]", "pt-[11vmin]"]
    height: 621px
    width: full-bleed
    layout: block
    children: 1
    bg: "rgb(255, 255, 255)"
    vertical-padding: ~104px (airy)
    padding: "99px 24px 108px"
  - section: content-section
    tag: div
    classes: ["relative", "bg-slate-900", "px-4", "sm:px-6"]
    height: 1725px
    width: full-bleed
    layout: block
    children: 2
    bg: "rgb(15, 23, 42)"
    tone: dark
    padding: "0px 24px"
  - section: feature-section
    tag: div
    classes: ["relative", "bg-slate-200", "py-[8vmin]", "px-4"]
    height: 2585px
    width: full-bleed
    layout: block
    children: 3
    bg: "rgb(226, 232, 240)"
    vertical-padding: ~72px (generous)
    padding: "72px 24px"
  - section: content-section
    tag: div
    classes: ["relative", "bg-slate-900", "py-[8vmin]", "px-4"]
    height: 944px
    width: full-bleed
    layout: block
    children: 1
    bg: "rgb(15, 23, 42)"
    tone: dark
    vertical-padding: ~72px (generous)
    padding: "72px 24px"
  - section: feature-section
    tag: div
    classes: ["relative", "bg-white", "py-[8vmin]", "px-4"]
    height: 2562px
    width: full-bleed
    layout: block
    children: 3
    bg: "rgb(255, 255, 255)"
    vertical-padding: ~72px (generous)
    padding: "72px 24px"
  - section: content-section
    tag: div
    classes: ["relative", "flex", "flex-col", "items-center"]
    height: 574px
    width: full-bleed
    layout: flex-column justify=normal
    children: 2
    bg: "rgb(255, 255, 255)"
    vertical-padding: ~45px
    padding: "0px 24px 90px"
  - section: feature-section
    tag: div
    classes: ["relative", "bg-base", "text-white", "py-[5vmin]"]
    height: 1969px
    width: full-bleed
    layout: block
    children: 1
    bg: "rgb(21, 23, 26)"
    tone: dark
    padding: "45px 24px 0px"
  - section: unknown
    tag: div
    classes: ["py-[8vmin]", "bg-white", "relative", "px-4"]
    height: 1124px
    width: full-bleed
    layout: block
    children: 3
    bg: "rgb(255, 255, 255)"
    vertical-padding: ~72px (generous)
    padding: "72px 24px"
  - section: unknown
    tag: div
    classes: ["py-[14vmin]", "text-center", "bg-base", "text-gray-400"]
    height: 607px
    width: full-bleed
    layout: block
    children: 1
    bg: "rgb(21, 23, 26)"
    tone: dark
    vertical-padding: ~126px (airy)
    padding: "126px 0px"
  - section: content-section
    tag: div
    classes: ["bg-base", "px-4", "sm:px-6"]
    height: 602px
    width: full-bleed
    layout: block
    children: 1
    bg: "rgb(21, 23, 26)"
    tone: dark
    padding: "0px 24px"
  - section: section
    tag: section
    height: 231px
    width: 250px
    layout: block
    children: 2
  - section: section
    tag: section
    height: 231px
    width: 250px
    layout: block
    children: 2
  - section: testimonials
    tag: section
    classes: ["hidden", "md:block"]
    height: 231px
    width: 250px
    layout: block
    children: 2
  - section: section
    tag: section
    classes: ["hidden", "lg:block"]
    height: 231px
    width: 250px
    layout: block
    children: 2
  - section: section
    tag: section
    height: 231px
    width: 250px
    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:
    - "EASY SITE DESIGN"
    - "ADVANCED CREATOR TOOLS"
    - "INTEGRATIONS"
    - "Publishers"
    - "BUILT TO LAST"
    - "LAUNCH YOUR BIG IDEA"
  sub-headings:
    - "Rich media & dynamic cards."
    - "$100,000,000+"
    - "404 Media"
  ctas:
    - "Product"
    - "Get Started — free"
    - "Just launched: Ghost 6.0 →"
    - "Learn more →"
    - "Start publishing now →"
  navigation:
    - "Explore"
    - "Pricing"
    - "Sign in"
    - "Get Started — free"
    - "About"
    - "Careers"
    - "Resources"
```

**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: 7
    avg-ratio: 1.04
    common-aspect: "~1:1 square"
  thumbnail:
    count: 23
    avg-ratio: 1.00
    common-aspect: "~1:1 square"
    sample-alts:
      - "GeckoBoard"
      - "Discourse"
      - "Imgur"
```

**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">
  Product
</button>
```
_Source pattern detected: padding `0px` · radius `6px` · weight `500`_

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


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

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

**By purpose:** **nav** 2 · **cta** 3 · **auth** 1 · **pricing** 1 · **social** 1 · **footer** 12 · **other** 40

**Primary actions (conversion path):**
- Account access — "Sign in" (login/signup) → `https://account.ghost.org/signin/`
- Primary call-to-action — "Get Started — free" (the conversion path) → `https://account.ghost.org/signup/`
- Primary call-to-action — "Try Ghost completely free for 14 days →" (the conversion path) → `https://account.ghost.org/signup/`
- Primary call-to-action — "Start publishing now →" (the conversion path) → `https://account.ghost.org/signup/`

**Projects / case studies detected** (clustered by URL + featured image):

*Integrations* — medium confidence, 12 items:

| Title | Featured image | Link |
|---|---|---|
| GeckoBoard | `geckoboard_hu9dcbb26ba4b2bd93be47ded` (ar 1) | https://ghost.org/integrations/geckoboard/ |
| GeckoBoard | `geckoboard_hu9dcbb26ba4b2bd93be47ded` (ar 1) | https://ghost.org/integrations/discourse/ |
| GeckoBoard | `geckoboard_hu9dcbb26ba4b2bd93be47ded` (ar 1) | https://ghost.org/integrations/imgur/ |
| MailChimp | `mailchimp_hucb75d06be88e6331905252c3` (ar 1) | https://ghost.org/integrations/mailchimp/ |
| MailChimp | `mailchimp_hucb75d06be88e6331905252c3` (ar 1) | https://ghost.org/integrations/pinterest/ |
| MailChimp | `mailchimp_hucb75d06be88e6331905252c3` (ar 1) | https://ghost.org/integrations/helpscout/ |
| MailChimp | `mailchimp_hucb75d06be88e6331905252c3` (ar 1) | https://ghost.org/integrations/buffer/ |
| Unsplash | `unsplash.svg` | https://ghost.org/integrations/unsplash/ |

**Signals:** 40/60 links carry a featured image · device mockups detected: tablet ×3, laptop ×1 · dominant link roles: content-card (34), footer-link (14), inline-link (9).


---
## Extraction Completeness: 59/100 (D)

| Category | Score | Max | Detail |
|----------|-------|-----|--------|
| Colors & Palette | 25 | 25 | 18 named colors |
| Typography | 15 | 20 | 6 roles defined |
| Components | 8 | 20 | 2 specs extracted |
| Motion & Interaction | 2 | 15 | No keyframes |
| CSS Custom Properties | 4 | 10 | 81 vars |
| Responsive Breakpoints | 5 | 5 | 6 breakpoints |
| Variable Fonts | 0 | 5 | None detected |

## 12. Known Gaps & Confidence

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

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

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

| Category | What's missing | Fallback strategy |
|----------|----------------|-------------------|
| **Hero imagery** | No dominant hero image detected above the fold | Use the canonical brand visual from §9b (OG image) for hero composition |
| **Keyframe animations** | No @keyframes declarations found (transitions only) | Use CSS transitions for state changes; avoid complex scroll-based animations |
| **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 | 81 CSS vars (semantic naming requires ≥20 for high) |
| §3 Typography | High | 6 typography roles inferred |
| §4 Components | Low | 2 component variants captured |
| §7 Motion | Medium | Transitions only |
| §8 Do's/Don'ts | High | 17 rules generated; design-decisions.json has evidence per rule |
| §9 Responsive | High | 6 breakpoints detected |
| §9b Photography | Medium | 61 images, hero not detected |

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

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

### Brand Gradient Palette

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

```css
/* Gradient 1 */
background: radial-gradient(circle farthest-corner at right bottom,#e9f0f2 0,#fcfeff 100%);

```

### Hover State CSS (Intercepted)

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

```css
.for-checkbox label:hover p,.for-radio label:hover p{color:var(--color-midgrey)}

.for-checkbox label:hover input:not(:checked)+.input-toggle-component,.for-radio label:hover input:not(:checked)+.input-toggle-component{border-color:var(--color-lightgrey)}

.gh-btn-green:hover{color:rgba(14,22,33,.9);box-shadow:0 0 0 1px #bfef00,0 1px 1px rgba(0,0,0,.12),0 2px 5px rgb(55 66 88/8%),0 3px 9px rgb(55 66 88/8%)}

.gh-modal-close svg:hover{fill:var(--color-darkgrey)}

.gh-theme-showcase-card-image-wrapper:hover .gh-theme-showcase-card-overlay{opacity:1}

.copy-code-button:active,.copy-code-button:active:hover,.copy-code-button:focus,.copy-code-button:hover{color:#fff;opacity:1}

.gh-faq-q:hover{cursor:pointer}

@media(max-width:860px){.gh-page-title:hover{display:inline-block;cursor:pointer}
```

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

## 11.2 Measured Reality (CDP Engine)

Captured directly from Chrome's engine across **all 690 rendered nodes** — not a sample. These are the values the page *actually paints*, weighted by how often they appear.

### Real Responsive Breakpoints
**18 breakpoints** read from the live `@media` rules (not guessed) — 14 most relevant:
`400px` · `500px` · `550px` · `575px` · `600px` · `620px` · `640px` · `660px` · `670px` · `700px` · `768px` · `860px` · `900px` · `934px` … (+4 more)

### Measured Design Scale
**Type scale by usage** (× = paint count): `15px`×447 · `12px`×88 · `24px`×49 · `36px`×26 · `18px`×24 · `48px`×23 · `14px`×15 · `96px`×7

**Radius scale** (× = paint count): `8px`×88 · `24px`×34 · `16px`×5 · `6px`×4 · `9999px`×3 · `4px`×2

**Weights** (× = paint count): `400`×515 · `600`×64 · `700`×62 · `500`×47

**Layout gaps** (× = paint count): `48px`×13 · `16px`×6 · `32px`×6 · `36px`×5 · `54px`×4 · `28px`×1 · `12px`×1 · `72px`×1

**Elevation (real shadows)**:
```css
rgba(0, 0, 0, 0.1) 0px 0px 1px 0px, rgba(0, 0, 0, 0.03) 0px 2px 6px 0px
rgba(0, 0, 0, 0.1) 0px 4px 6px -1px, rgba(0, 0, 0, 0.1) 0px 2px 4px -2px
rgba(0, 0, 0, 0.1) 0px 10px 15px -3px, rgba(0, 0, 0, 0.1) 0px 4px 6px -4px
rgba(0, 0, 0, 0.1) 0px 20px 25px -5px, rgba(0, 0, 0, 0.1) 0px 8px 10px -6px
```

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

```css
body { font-size:1.5rem }
header { background-color:var(--header-bg) }
h1 { font-size:6.5vmin }
h1 { color:rgb(17 34 32/var(--tw-text-opacity,1)) }
@media (min-width: 1024px) h1 { font-size:9.6rem }
h2 { font-size:1.2rem }
h2 { color:rgb(209 255 25/var(--tw-text-opacity,1)) }
button { font-family:inherit; font-size:100%; font-weight:inherit; color:inherit }
button { border-radius:.6rem }
button { color:var(--header-text-muted) }
button { font-weight:500; font-size:1.6rem; color:#fff; background:var(--color-base); border-radius:.6rem; transition:all .4s ease }
button { font-size:1.8rem }
```

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

---
*Generated by Prism — automated Playwright extraction + design analysis.*
*Source: https://ghost.org/ | 2026-06-11T05:42:18.710Z*
*Values extracted via getComputedStyle() (rendered) + CSS custom properties (tokens, marked `(token)`). Token-only values may not be painted — verify against the live site before shipping.*