mercury.com

DESIGN.md

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

---
version: alpha
name: mercury.com
description: "Light product system built on #ffffff with #5266eb as the primary CTA accent. Type anchored in arcadiaDisplay at 49.3472px / weight 480. Extracted automatically from https://mercury.com/ — rendered styles via getComputedStyle() + CSS custom properties (token-only values may not be painted)."
narrative: |
  mercury.com is built on a pure-white canvas (rgb(255,255,255)).
  The system uses rgb(82, 102, 235) as the high-saturation accent for primary actions.
  Generously rounded CTAs (40px) suggest approachable, content-first design alongside arcadiaDisplay as the primary typeface.
  A restrained elevation system (1 distinct shadow) — shadows reserved for the few elements that must lift off the page.
  Interactions are smoothed by transitions across many elements, with little or no keyframe animation.

colors:
  background: "#ffffff"
  surface-1: "#ffffff"
  surface-2: "#f4f5f9"
  ink-subtle: "#70707d"
  primary: "#5266eb"
  on-primary: "#111111"
  primary-hover: "#9cb4e8"
  hairline: "#2a2a33"
  primary-focus: "#9cb4e8"
  semantic-error: "#d03275"

typography:
  display-xl:
    fontFamily: "arcadiaDisplay, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 49.3472px
    fontWeight: 480
    lineHeight: 1.1
    letterSpacing: 0
  display-md:
    fontFamily: "arcadia, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.5
    letterSpacing: 0
  body:
    fontFamily: "arcadia, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 14px
    fontWeight: 420
    lineHeight: 1
    letterSpacing: 0.07px
  button:
    fontFamily: "arcadia, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 16px
    fontWeight: 420
    lineHeight: 1
    letterSpacing: 0

rounded:
  none: 0px
  xs: 4px
  sm: 8px
  md: 12px
  lg: 16px
  xl: 32px
  pill: 9999px

spacing:
  xxs: 2px
  xs: 4px
  sm: 8px
  md: 12px
  lg: 24px
  xl: 32px
  xxl: 64px

components:
  button-pill:
    backgroundColor: "transparent"
    textColor: "#ededf3"
    typography: "{typography.display-md}"
    rounded: "{rounded.xl}"
    padding: 0px 20px
  button-pill-2:
    backgroundColor: "{colors.primary}"
    textColor: "{colors.surface-1}"
    typography: "{typography.display-md}"
    rounded: "{rounded.xl}"
    padding: 0px 20px
  button-icon-button:
    backgroundColor: "#272735"
    textColor: "#c3c3cc"
    typography: "{typography.body}"
    rounded: "{rounded.xs}"
  input-text-input:
    backgroundColor: "transparent"
    textColor: "#ededf3"
    typography: "{typography.display-md}"
    rounded: "{rounded.xl}"
    padding: 0px 0px 0px 20px
  navigation-main-nav:
    backgroundColor: "#f6f5f2"
    typography: "{typography.display-md}"
    rounded: "{rounded.none}"
    padding: 16px 32px
  testimonial-quote-card:
    backgroundColor: "transparent"
    textColor: "#000000"
    typography: "{typography.display-md}"
    rounded: "{rounded.none}"
    padding: 32px
  tab-ghost-tab:
    backgroundColor: "transparent"
    textColor: "#000000"
    typography: "{typography.display-md}"
    rounded: "{rounded.xs}"
    padding: 40px 2px

extracted_at: "2026-06-11T06:13:09.357Z"
completeness: 84
scoreVersion: "v2"

---

# Design System — mercury.com
> Extracted automatically by Prism from https://mercury.com
> 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**: moderate  |  **Motion**: animated  |  **Weight**: medium  |  **Aesthetic**: soft-rounded

| Dimension | Value | Signal |
|---|---|---|
| Canvas | neutral | `#ffffff` |
| Type posture | sans-led (arcadia) | "Radically different banking" |
| Color assertion | dual-accent | #5266eb |
| Whitespace | moderate | section rhythm 48px |
| Interaction | animated | 0 keyframes, 22 transitions |
| Radius language | soft-pill | from token scale |

**Prism fingerprint**: `neutral-canvas · sans-display · dual-accent · soft-pill · animated-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(82, 102, 235)` 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

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

Headlines are set in **arcadiaDisplay**, a sans-serif display face (the dominant type signature, e.g. "Radically different banking" at 49.3472px). Body text is set in **arcadia**. 

Body text reads in Pure Black (`#000000`) (contrast ratio 21.0:1, well above WCAG AA). **Brand Indigo** (`#5266eb`) 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 comes from a small, deliberate set of shadows (1 distinct), each a multi-layer stack — several blurred layers at varying offsets — used sparingly rather than across the whole UI. 
Motion design uses smooth easing curves for polished state transitions. 

**Key Characteristics:**
- Background: Pure White (`#ffffff`)
- Primary typeface: arcadia
- Accent: Brand Indigo (`#5266eb`)
- Display: 49.3472px weight 480
- Shadow system: 1 distinct elevation levels
- Custom fonts loaded: arcadia, arcadia Fallback, arcadiaDisplay, arcadiaDisplay Fallback, tiemposHeadline, tiemposHeadline Fallback

## 2. Color Palette & Roles

### Background & Surface
- **Pure White** (`#ffffff`): Page background (primary)
- **Surface Input Active** (`#fbfcfd`): Surface / elevated background (CSS var)
- **Surface Default** (`#ededf3`): Surface / elevated background (CSS var)
- **Surface Elevated Active** (`#f4f5f9`): Surface / elevated background (CSS var)
- **Translucent Warm Cream (9%)** (`rgba(246, 245, 242, 0.086)`): Surface / elevated background

### Text & Content
- **Pure Black** (`#000000`): Primary body text
- **Text Emphasized** (`#1e1e2a`): Text (CSS var)
- **Text Disabled** (`#70707d`): Text (CSS var)
- **Text Default** (`#272735`): Text (CSS var)
- **Text Subdued** (`#535461`): Text (CSS var)

### Accent & Interactive
- **Surface Emphasized Hover** (`rgba(82, 102, 235, 0.1607843137254902)`): Accent / interactive (CSS var)
- **Surface Magic Hover** (`#4354c8`): Accent / interactive (CSS var)
- **Surface Magic Active** (`#3442a6`): Accent / interactive (CSS var)
- **Sage** (`#9cb4e8`): Interactive / accent
- **Translucent Sage (20%)** (`rgba(175, 178, 206, 0.2)`): Interactive / accent
- **#cdddff** (`#cdddff`): Interactive / accent
- **#fc92b4** (`#fc92b4`): Interactive / accent

### Border & Divider
- **Border Error** (`rgba(208, 50, 117, 0.2196078431372549)`): Border (CSS var)
- **Border Default Inverted** (`#c3c3cc`): Border (CSS var)
- **Border Frosted** (`rgba(112, 115, 147, 0.2196078431372549)`): Border (CSS var)

### Full Extracted Palette
**25 colors rendered on the page** + **6** more declared in design tokens (CSS custom properties — not necessarily painted). (20 categorized above + 11 additional below.)
Rendered values are read via `getComputedStyle()`; token values come from CSS variable declarations. Third-party logo colors are filtered out.

- `#2a2a33` — Charcoal
- `#171721` — Near-Black
- `#30303b` — Charcoal
- `#1e1e29` — Near Black
- `#ededf2` — Off-White
- `#eeedf0` — Off-White
- `#ededf1` — Off-White
- `rgba(9, 9, 11, 0.7)` — Translucent Jet Black (70%)
- `#27272a` — Near-Black
- `#010101` — Pure Black
- `#dddde5` — Whitesmoke *(token)*

### CSS Custom Properties (Design Tokens)

**Z-Index Token**
- `--navbar-z-index`: `99`

**Spacing Token**
- `--column-gap-logomash`: `56px`
- `--stack-gap-sm`: `12px`
- `--column-gap-listings`: `32px`
- `--gap-md`: `32px`

**Shadow Token**
- `--tw-inset-shadow-alpha`: `100%`
- `--tw-ring-shadow`: `0 0 #0000`
- `--tw-drop-shadow-alpha`: `100%`
- `--tw-inset-ring-shadow`: `0 0 #0000`

**Motion Token**
- `--tab-fade-duration`: `.3s`
- `--default-transition-duration`: `.15s`
- `--media-tab-fade-duration`: `.5s`

**Border Radius Token**
- `--radius-4xl`: `2rem`
- `--radius-sm`: `.25rem`
- `--radius-2xl`: `1rem`
- `--radius-lg`: `.5rem`

**Other tokens**
- `--tw-mask-radial-from-color`: `black`
- `--icon-on-primary`: `#fff`
- `--text-default-inverted`: `#ededf3`
- `--surface-primary`: `#5266eb`
- `--text-emphasized`: `#1e1e2a`
- `--text-disabled`: `#70707d`
- `--tw-ring-offset-color`: `#fff`
- `--icon-primary`: `#5266eb`

## 3. Typography Rules

### Font Families
- **Primary**: `arcadia`
- **Secondary**: `arcadiaDisplay`
- **Font 3**: `arcadia Fallback`
- **Font 4**: `arcadiaDisplay Fallback`
- **Font 5**: `tiemposHeadline`

### Custom Fonts Loaded
- **arcadia** weight 360 500 (normal)
- **arcadia Fallback** weight normal (normal)
- **arcadiaDisplay** weight 320 480 (normal)
- **arcadiaDisplay Fallback** weight normal (normal)
- **tiemposHeadline** weight 400 (normal)
- **tiemposHeadline** weight 300 (italic)
- **tiemposHeadline** weight 500 (italic)
- **tiemposHeadline Fallback** weight normal (normal)

### Typography Hierarchy

| Role | Font | Size | Weight | Line Height | Letter Spacing | Notes |
|------|------|------|--------|-------------|----------------|-------|
| Display Hero | arcadiaDisplay | 49.3472px | 480 | 1.1 | normal | Main headline (h1) |
| Sub-heading | arcadia | 16px | 400 | 1.5 | normal | Third-level heading (h3) |
| Button Large | arcadia | 16px | 420 | 1 | normal | Button label (16px) |
| Button | arcadia | 14px | 420 | 1 | 0.07px | Button label (14px) |

### Full Font Size Scale

Sizes detected in the design (descending): `65.34px`, `49.35px`, `42px`, `32px`, `28px`, `24px`, `21.01px`, `18px`, `16px`, `14px`, `12px`

> 8 size(s) detected outside the sampled hierarchy (65.344px, 42px, 32px, 28px, 24px, 21.008px, 18px, 12px). These appear on elements not in the sampled set — likely additional display sizes, marketing-section overrides, or third-party-widget styles.

### OpenType & Variable Font Features

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)
- **ligatures** — common letter pairs replaced with refined glyphs (fi, fl, etc.)

**Clone instruction:** Enable these in your CSS:
```css
body {
  font-feature-settings: "clig", "liga", "ss01";
}
```

## 4. Component Stylings

### Buttons

**Pill**
- Background: `transparent`
- Text: `#ededf3`
- Padding: 0px 20px
- Radius: 40px
- Font: 16px weight 420
- Use: Status pills, tags, chips
- Focus: outline: `rgb(156, 180, 232) solid 2px`

**Pill**
- Background: `#5266eb` `{colors.primary}`
- Text: `#ffffff` `{colors.surface-1}`
- Padding: 0px 20px
- Radius: 32px
- Font: 16px weight 420
- Use: Status pills, tags, chips
- Focus: outline: `rgb(156, 180, 232) solid 2px`

**Icon Button**
- Background: `#272735`
- Text: `#c3c3cc`
- Padding: 0px
- Radius: 4px
- Border: 1px solid rgba(112, 115, 147, 0.22)
- Font: 14px weight 420
- Use: Toolbar/UI icons
- Focus: outline: `rgb(156, 180, 232) solid 2px`

**Icon Button**
- Background: `rgba(175, 178, 206, 0.2)`
- Text: `#ededf3`
- Padding: 0px
- Radius: 9999px
- Border: 1px solid rgba(175, 178, 206, 0.36)
- Font: 16px weight 420
- Use: Toolbar/UI icons
- Focus: outline: `rgb(156, 180, 232) solid 2px`

**Ghost**
- Background: `transparent`
- Text: `#000000`
- Padding: 0px
- Radius: 4px
- Font: 16px weight 400
- Use: Subtle action, toolbar, nav button
- Focus: outline: `rgb(156, 180, 232) solid 2px`

**Ghost**
- Background: `transparent`
- Text: `#ededf3`
- Padding: 0px
- Radius: 4px
- Font: 16px weight 480
- Use: Subtle action, toolbar, nav button
- Focus: outline: `rgb(156, 180, 232) solid 2px`

### Inputs & Forms

**Text Input**
- Background: `transparent`
- Text: `#ededf3`
- Padding: 0px 0px 0px 20px
- Radius: 32px 0px 0px 32px
- Border: 0px solid rgb(237, 237, 243)
- Font: 16px weight 420
- Use: Text fields, search inputs
- Focus: outline: `rgb(16, 16, 16) none 1px`

### Navigation

**Main Nav**
- Background: `rgba(246, 245, 242, 0.086)`
- Padding: 16px 32px
- Radius: none
- Font: 16px weight 400
- Use: Fixed/sticky flex nav — N/A items

### Testimonials

**Quote Card**
- Background: `transparent`
- Text: `#000000`
- Padding: 32px
- Radius: 0px
- Font: 16px weight 400
- Use: Customer quote with avatar + company attribution

### Tabs

**Ghost Tab**
- Background: `transparent`
- Text: `#000000`
- Padding: 40px 2px
- Radius: 4px
- Font: 16px weight 400
- Use: Navigation tabs, filter tabs


## 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(237, 237, 243)"
    focus:
      bg: "transparent"
      fg: "inherit"
  input:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(237, 237, 243)"
    focus:
      bg: "transparent"
      fg: "inherit"
  link:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(237, 237, 243)"
  card:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(0, 0, 0)"
  navLink:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(237, 237, 243)"
  tab:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(0, 0, 0)"
  footerLink:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(237, 237, 243)"
    hover:
      bg: "transparent"
      fg: "inherit"
```

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


## 4c. Component Vocabulary (Closed System)

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

### Buttons
- **3 shape(s)** in this system: `Pill`, `Icon Button`, `Ghost`
- **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

### Testimonials
- **1 shape(s)** in this system: `Quote Card`
- **DO NOT introduce new testimonials 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
1952px

### 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 | 12px | Cards, containers |
| Lg | 16px | Large rounded elements, pill segments |
| Xl | 32px | Category strips, featured containers |
| Full | 9999px | Pills, avatars, circular elements |

### Shape Language

| Component | Border Radius |
|-----------|---------------|
| Buttons | `40px` |
| Inputs & Forms | `32px 0px 0px 32px` |
| Navigation | `none` |
| Testimonials | `0px` |
| Tabs | `4px` |
| Page Body | `0px` |
| Primary Input | `32px 0px 0px 32px` |

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

**Full Radius Spectrum**: 4px, 7px, 8px, 12px, 16px, 32px, 40px (from `allBorderRadii` scan)


## 5b. Spacing Rhythm Names

**Measured section padding**: bands use ~56px internal vertical padding (up to 104px) — **standard**. (Distinct from the gap *between* sections above.) Reproduce this generous vertical breathing room; cramped spacing is the #1 tell of a cheap clone.

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

| Name | Value | Use case |
|------|-------|----------|
| **hero** | `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).

**6/8 structural patterns detected.**

### Hero Pattern

- **Composition:** centered — Centered composition — heading + subheading + CTAs stacked vertically, content centered horizontally. Common for SaaS marketing pages.
- **Viewport coverage:** full-viewport hero (≥70% screen height)
- **Heading:** "Radically different banking" — 49px center-aligned
- **Subheading:** "Mercury will occasionally send you emails with offers, news, and promotions. Check this box if you do not want to receive them."
- **Media:** present, positioned top
- **CTAs:** 1 (primary: "Open account")
- **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-left — Logo and links both on the left (CTAs typically right)
- **Height:** 72px
- **Logo:** ✓ present
- **Nav links:** 3 primary items
- **CTAs in nav:** 1
- **Clone instruction:** Build a static logo left links left navigation. Reserve 1 slot for primary CTA.

### Card Grid Pattern

- **Card count:** 5 cards detected
- **Columns (desktop):** 1-up grid
- **Card dimensions:** 1440×900px (aspect 1.6:1)
- **Gap:** 0px between cards
- **Content:** ✓ image
- **Image position:** top
- **Clone instruction:** Build a 1-column grid (desktop) with cards at ~1.6:1 aspect ratio. Each card has an image at the top.

### Pricing Table Pattern

- **Tier count:** 2 pricing tiers
- **Layout:** vertical stacked
- **Columns (desktop):** 2-up
- **Feature list:** ✓ (median ~37 feature points per tier)
- **Clone instruction:** Build a 2-column vertical-stack pricing comparison.

### Testimonial Pattern

- **Count:** 3 testimonial blocks
- **Layout:** list
- **Avg quote length:** 140 chars (medium quote)
- **Includes:** ✗ no avatars | ✗ no logos | ✓ star ratings
- **Clone instruction:** Build a list of 3 testimonials.   Display ratings prominently.

### Footer Pattern

- **Columns:** 1
- **Links:** 53 total
- **Height:** 689px
- **Includes:** ✗ no newsletter | ✓ social icons |  
- **Clone instruction:** Build a 1-column footer with ~53 links per column, social media links.

## 6. Depth & Elevation

| Level | Treatment | Use |
|-------|-----------|-----|
| Flat (Level 0) | No shadow | Page background, content blocks |
| Layered (Level 1) | <br>`rgba(28, 28, 35, 0.02) 0px 10px 16px 0px`,<br>`rgba(28, 28, 35, 0.04) 0px 6px 10px 0px`,<br>`rgba(28, 28, 35, 0.09) 0px 0px 3px 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 |
| `--ease-in-out` | `cubic-bezier(.4,0,.2,1)` | Ease Out — Decelerating |
| `--default-transition-timing-function` | `cubic-bezier(.4,0,.2,1)` | Ease Out — Decelerating |
| `--ease-out` | `cubic-bezier(0,0,.2,1)` | Ease Out — Decelerating |

### Duration Scale

| CSS Variable | Value | Tier |
|--------------|-------|------|
| `--tab-fade-duration` | `.3s` | Normal |
| `--default-transition-duration` | `.15s` | Fast |
| `--media-tab-fade-duration` | `.5s` | Slow |
| `--wipeOut-duration` | `.15s` | Fast |

### Copy-Paste Transition Snippets

**Color / Background**
```css
transition: color 0.5s cubic-bezier(0, 0, 0.6, 1), background-color 0.5s cubic-bezier(0, 0, 0.6, 1), border-color 0.5s cubic-bezi...;
```

**Color / Background**
```css
transition: color 0.3s cubic-bezier(0, 0, 0.2, 1), background-color 0.3s cubic-bezier(0, 0, 0.2, 1), border-color 0.3s cubic-bezi...;
```

**Transform**
```css
transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), translate 0.3s cubic-bezier(0.4, 0, 0.2, 1), scale 0.3s cubic-bezier(0.4...;
```

**All Props**
```css
transition: visibility 0.175s cubic-bezier(0.4, 0, 0.2, 1);
```

### Keyframe Animation Catalog

| Animation Name | Type | Animated Props | Use Hint |
|----------------|------|----------------|----------|
| `spin` | Custom |  | Loading indicator |
| `wave` | Custom |  | UI transition |
| `fadeIn` | Custom |  | Element entrance |
| `fadeOutBlur` | Custom |  | Element exit |
| `fadeInTabTranslate` | Custom |  | Element entrance |
| `fadeInCopy` | Custom |  | Element entrance |
| `fadeOut` | Custom |  | Element exit |
| `fadeOutTabTranslate` | Custom |  | Element exit |
| `translateUp` | Custom |  | UI transition |
| `collapseDown` | Custom |  | UI transition |
| `collapseUp` | Custom |  | UI transition |
| `scaleIn` | Custom |  | Focus / emphasis |
| `scaleOut` | Custom |  | Focus / emphasis |
| `slideUpAndFade` | Custom |  | Panel / drawer enter |
| `slideUpMoreAndFade` | Custom |  | Panel / drawer enter |
| `slideUpMoreAndFadeReverse` | Custom |  | Panel / drawer enter |
| `slideDownAndFade` | Custom |  | Panel / drawer enter |
| `slideRightAndFade` | Custom |  | UI transition |
| `slideLeftAndFade` | Custom |  | UI transition |
| `circleLoaderFillReset` | Custom |  | Loading indicator |

> *11 additional animations omitted (repetitive variants). See raw keyframes in `raw-css.json`.*

### Motion Fingerprint

- **Speed Character**: Deliberate & Calm (median duration: `400ms`)
- **Dominant Easing**: custom cubic-bezier curves
- **Animation Library**: 31 unique animations (0 total including variants)

> 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 arcadia as the primary typeface — it defines the brand personality
- Keep font weights between 400-480 — the system uses a narrow weight range for subtle hierarchy
- Use the extracted shadow patterns for elevation — they are tuned to match the brand palette
- Use Brand Indigo (`#5266eb`) 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 72px — 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
- Use a single primary CTA in the hero — the design intentionally avoids choice paralysis
- Each card includes a top 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 use weight 700 (bold) or above — 480 is the maximum weight in this system
- 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 `rgb(82, 102, 235)` for primary CTAs and brand-mark signals only"
    why: "Single chromatic assertion device — overuse dilutes meaning"
    test: "querySelectorAll('[style*=\"rgb(82, 102, 235)\"]').length <= 3 per fold"
```

## 9. Responsive Behavior

### Breakpoints
| Name | Width | Key Changes |
|------|-------|-------------|
| Mobile | 640px | Single column layout |
| Tablet | 768px | 2-column grids |
| Desktop | 1024px | Full layout |
| Large Desktop | 1280px | Maximum width |

### Token Diff — Desktop vs Mobile

| Element | Property | Desktop | Mobile |
|---------|----------|---------|--------|
| heading | font-size | `49.3472px` | `28px` |
| heading | line-height | `54.2819px` | `30.8px` |
| nav | display | `flex` | `none` |
| nav | padding | `16px 32px` | `16px 24px` |
| button | width | `126px` | `fit-content` |
| card | width | `1024px` | `342px` |

### Collapsing Strategy
- Headlines: 49.3472px → 28px 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 20px 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.*

- **Canvas / 2D rendering** — animated/interactive canvas (charts, graphs, particle fields). Reproduce as live data-viz (e.g. an animated SVG/Canvas line chart), NOT a static image.
- **WebGL** — GPU 3D/shader graphics (hero atmosphere is rendered, not a flat gradient).
- **Glassmorphism** — 5 frosted/blur layer(s) (e.g. `blur(8px)`).
- **Clip-path shapes** — 8 non-rectangular cut(s).
- **Blend modes** — 2 mix-blend layer(s).

> **Motion fingerprint**: WebGL/3D canvas, glassmorphism (10 layers), non-rectangular shapes (10), blend modes

## 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://www.datocms-assets.com/115132/1746056008-2025-04-30_fem_homepage-social_1200x630.webp?auto=format&fit=crop&w=1200
  *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: 1.6:1 (landscape (16:9-ish))
- Rendered size: 1440×900px
- *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): 16 (64%)
- Portrait (<0.87): 9 (36%)
- Square (0.87–1.15): 0 (0%)

**Media Format Mix:**
- JPG: 1 (typically photographic content)
- WebP: 16 (optimized photo/illustration hybrid)

**Average rendered image size:** 583×454px
**Above-fold image count:** 2 / 25

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

**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: Brand Indigo (`#5266eb`)
- Border: Charcoal (`#2a2a33`)
- Font: arcadia
- Body: 16px weight 400

### Example Component Prompts
- "Create a hero section on Pure White background (#ffffff). Headline at 49.3472px arcadia weight 480, line-height 1.1, color #000000."
- "Create the primary CTA button: `#5266eb` background, `#ffffff` text, 32px border-radius, 0px 20px padding, 420 weight, arcadia font."
- "Design a card on `transparent` background. Border: none. Radius: 0px. Shadow: none. Padding: 0px."
- "Build navigation: relative on `#ffffff`. arcadia 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 arcadia, weight range 400–480. Never exceed 480 — heavier weights break the brand's tonal restraint.
3. **Accent**: Brand Indigo (`#5266eb`) is the sole interactive color. On hover → Sage (`#9cb4e8`). Use CSS transitions, not opacity/brightness filters.
4. **Motion**: All transitions use `cubic-bezier(0,0,0.6,1)`. Timing: 150ms for micro-interactions, 300ms for layout changes. Never use linear for UI transitions — preserve the brand's easing personality.
5. **Shape**: CTAs at `40px`, cards at `0px`. 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-surface-1: #ffffff;
  --ca-surface-2: #f4f5f9;
  --ca-ink-subtle: #70707d;
  --ca-primary: #5266eb;
  --ca-on-primary: #111111;
  --ca-primary-focus: #9cb4e8;
  --ca-hairline: #2a2a33;
  --ca-semantic-error: #d03275;
}

/* Typography */
:root {
  --ca-font-primary: "arcadiaDisplay", system-ui, sans-serif;
  --ca-text-display: 49.3472px;
  --ca-text-body: 14px;
  --ca-text-button: 16px;
}

/* Spacing & Radius */
:root {
  --ca-space-xxs: 2px;
  --ca-space-xs: 4px;
  --ca-space-sm: 8px;
  --ca-space-md: 12px;
  --ca-space-base: 16px;
  --ca-space-lg: 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: 12px;
  --ca-radius-lg: 16px;
  --ca-radius-xl: 32px;
  --ca-radius-full: 9999px;
}

/* Motion */
:root {
  --ca-ease-in: cubic-bezier(.4,0,1,1);
  --ca-ease-in-out: cubic-bezier(.4,0,.2,1);
  --ca-ease-out: cubic-bezier(0,0,.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: hero
    tag: div
    height: 11530px
    width: full-bleed
    layout: block
    children: 2
    contains: chart/canvas (reproduce as live data-viz, not a flat image)
  - section: navigation
    tag: section
    classes: ["relative", "group-has-[#navbar-banner]/page-layout-container:-top-navbar-banner-height"]
    height: 900px
    width: full-bleed
    layout: block
    children: 1
    contains: chart/canvas (reproduce as live data-viz, not a flat image)
  - section: feature-section
    tag: main
    height: 9492px
    width: full-bleed
    layout: block
    children: 13
    contains: chart/canvas (reproduce as live data-viz, not a flat image)
  - section: feature-section
    tag: div
    classes: ["group/page-layout-container"]
    height: 11530px
    width: full-bleed
    layout: block
    children: 4
    contains: chart/canvas (reproduce as live data-viz, not a flat image)
  - section: content-section
    tag: section
    height: 972px
    width: full-bleed
    layout: block
    children: 1
  - section: feature-section
    tag: section
    height: 393px
    width: full-bleed
    layout: block
    children: 1
  - section: feature-section
    tag: div
    classes: ["motion-safe:opacity-0", "animate-container"]
    height: 393px
    width: full-bleed
    layout: block
    children: 2
  - section: content-section
    tag: section
    height: 668px
    width: full-bleed
    layout: block
    children: 1
  - section: content-section
    tag: div
    classes: ["motion-safe:opacity-0", "animate-container"]
    height: 668px
    width: full-bleed
    layout: block
    children: 1
    vertical-padding: ~36px
  - section: gallery-grid
    tag: div
    classes: ["grid", "max-w-grid-max-width", "grid-cols-layout", "gap-x-grid-gutters"]
    height: 668px
    width: full-bleed
    layout: grid: 16-col gap=normal 32px
    children: 1
    vertical-padding: ~36px
    padding: "72px 32px 0px"
  - section: content-section
    tag: section
    height: 1130px
    width: full-bleed
    layout: block
    children: 1
  - section: content-section
    tag: div
    classes: ["motion-safe:opacity-0", "animate-container"]
    height: 1130px
    width: full-bleed
    layout: block
    children: 2
  - section: content-section
    tag: div
    classes: ["next-video-container"]
    height: 331px
    width: 496px
    layout: grid: 1-col gap=normal
    children: 5
  - section: content-section
    tag: div
    classes: ["next-video-container"]
    height: 331px
    width: 496px
    layout: grid: 1-col gap=normal
    children: 5
  - section: section
    tag: section
    height: 338px
    width: full-bleed
    layout: block
    children: 1
  - section: unknown
    tag: div
    classes: ["motion-safe:opacity-0", "animate-container"]
    height: 338px
    width: full-bleed
    layout: block
    children: 1
    vertical-padding: ~56px (generous)
  - section: unknown
    tag: div
    classes: ["grid", "max-w-grid-max-width", "grid-cols-layout", "gap-x-grid-gutters"]
    height: 338px
    width: full-bleed
    layout: grid: 16-col gap=normal 32px
    children: 1
    vertical-padding: ~56px (generous)
    padding: "112px 32px 0px"
  - section: content-section
    tag: section
    height: 732px
    width: full-bleed
    layout: block
    children: 1
  - section: content-section
    tag: div
    classes: ["motion-safe:opacity-0", "animate-container"]
    height: 732px
    width: full-bleed
    layout: block
    children: 1
  - section: unknown
    tag: div
    classes: ["group/asset-container", "relative", "col-start-1", "col-end-auto"]
    height: 620px
    width: 496px
    layout: grid: 1-col gap=normal
    children: 1
  - section: unknown
    tag: div
    classes: ["w-full", "transition-transform", "duration-0", "group-data-[state=active]/asset-container:translate-x-0"]
    height: 620px
    width: 496px
    layout: block
    children: 1
  - section: unknown
    tag: div
    classes: ["group/asset-container", "relative", "col-start-1", "col-end-auto"]
    height: 620px
    width: 496px
    layout: grid: 1-col gap=normal
    children: 1
  - section: unknown
    tag: div
    classes: ["w-full", "transition-transform", "duration-0", "group-data-[state=active]/asset-container:translate-x-0"]
    height: 620px
    width: 496px
    layout: block
    children: 1
  - section: unknown
    tag: div
    classes: ["group/asset-container", "relative", "col-start-1", "col-end-auto"]
    height: 620px
    width: 496px
    layout: grid: 1-col gap=normal
    children: 1
  - section: unknown
    tag: div
    classes: ["w-full", "transition-transform", "duration-0", "group-data-[state=active]/asset-container:translate-x-0"]
    height: 620px
    width: 496px
    layout: block
    children: 1
```

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


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

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

```yaml
copy:
  section-headings:
    - "Loved by 300K+ of the most ambitious entrepreneurs on the planet"
    - "You’re creating something to stand the test of time. So are we."
    - "$650M in annual revenue and profitable"
    - "Mercury lands $300M Series C"
    - "Mercury for business"
    - "Disclaimers and footnotes"
  sub-headings:
    - "Business banking & more"
  ctas:
    - "Products"
    - "Log in"
    - "Open account"
    - "Business banking & more"
    - "Launch demo"
  navigation:
    - "Pricing"
    - "Log in"
    - "Open account"
    - "Launch demo"
    - "Explore credit cards"
    - "Explore Treasury"
  footer-links:
    - "Business Checking & Savings"
    - "Business Formation 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:
  hero:
    count: 3
    avg-ratio: 2.00
    common-aspect: "~16:9 landscape"
    sample-alts:
      - "Portrait of a man sitting indoors next to a testimonial abou"
      - "Portrait of two founders next to a testimonial about how Mer"
      - "Portrait of a woman indoors next to a testimonial about Merc"
```

**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">
  Products
</button>
```
_Source pattern detected: padding `0px 20px` · radius `40px` · weight `420`_

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

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


## 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** 4 · **cta** 2 · **auth** 2 · **pricing** 2 · **docs** 1 · **blog** 2 · **social** 1 · **footer** 15 · **other** 31

**Primary actions (conversion path):**
- Account access — "Log in" (login/signup) → `https://app.mercury.com/login`
- Primary call-to-action — "Open account" (the conversion path) → `https://app.mercury.com/signup`
- Primary call-to-action — "Open Account" (the conversion path) → `https://app.mercury.com/signup`
- Account access — "Log In" (login/signup) → `https://app.mercury.com/login`

**Signals:** 8/60 links carry a featured image · device mockups detected: laptop ×3, tablet ×4 · dominant link roles: inline-link (30), footer-link (17), navigation (4).


---
## Extraction Completeness: 84/100 (B)

| Category | Score | Max | Detail |
|----------|-------|-----|--------|
| Colors & Palette | 25 | 25 | 20 named colors |
| Typography | 10 | 20 | 4 roles defined |
| Components | 20 | 20 | 5 specs extracted |
| Motion & Interaction | 15 | 15 | Keyframes (intercepted CSS), easing vars |
| CSS Custom Properties | 10 | 10 | 193 vars |
| Responsive Breakpoints | 4 | 5 | 4 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:*

- **Licensed web fonts (arcadia, arcadiaDisplay, tiemposHeadline)** — detected but not downloaded. Substitute with your licensed copy or a close fallback (see Typography section for metrics).

| Category | What's missing | Fallback strategy |
|----------|----------------|-------------------|
| **Keyframe animations** | No @keyframes declarations found (transitions only) | Use CSS transitions for state changes; avoid complex scroll-based animations |
| **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 | 193 CSS vars (semantic naming requires ≥20 for high) |
| §3 Typography | Medium | 4 typography roles inferred |
| §4 Components | High | 5 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 | 4 breakpoints detected |
| §9b Photography | High | 25 images, hero present |

## 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.*

### Font Loading

6 font file(s) captured (232KB total). When running `prism add`, fonts are saved to `extractions/mercury.com/fonts/` and embedded as base64 in the output HTML.

**@font-face declarations to use:**
```css
@font-face {
  font-family: 'arcadia';
  /* src: url('/fonts/arcadia.woff2') format('woff2'); */
  font-weight: 360 500;
  font-style: normal;
  font-display: optional;
}
@font-face {
  font-family: 'arcadia Fallback';
  /* src: url('/fonts/arcadia-Fallback.woff2') format('woff'); */
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'arcadiaDisplay';
  /* src: url('/fonts/arcadiaDisplay.woff2') format('woff2'); */
  font-weight: 320 480;
  font-style: normal;
  font-display: optional;
}
@font-face {
  font-family: 'arcadiaDisplay Fallback';
  /* src: url('/fonts/arcadiaDisplay-Fallback.woff2') format('woff'); */
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'tiemposHeadline';
  /* src: url('/fonts/tiemposHeadline.woff2') format('woff2'); */
  font-weight: 400;
  font-style: normal;
  font-display: optional;
}
@font-face {
  font-family: 'tiemposHeadline';
  /* src: url('/fonts/tiemposHeadline.woff2') format('woff2'); */
  font-weight: 400;
  font-style: italic;
  font-display: optional;
}
@font-face {
  font-family: 'tiemposHeadline';
  /* src: url('/fonts/tiemposHeadline.woff2') format('woff2'); */
  font-weight: 300;
  font-style: italic;
  font-display: optional;
}
@font-face {
  font-family: 'tiemposHeadline';
  /* src: url('/fonts/tiemposHeadline.woff2') format('woff2'); */
  font-weight: 500;
  font-style: italic;
  font-display: optional;
}
@font-face {
  font-family: 'tiemposHeadline Fallback';
  /* src: url('/fonts/tiemposHeadline-Fallback.woff2') format('woff'); */
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}
```

### Keyframe Animations (Intercepted from CSS)

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

```
@keyframes spin { ... }
@keyframes wave { ... }
@keyframes fadeIn { ... }
@keyframes fadeOutBlur { ... }
@keyframes fadeInTabTranslate { ... }
@keyframes fadeInCopy { ... }
@keyframes fadeOut { ... }
@keyframes fadeOutTabTranslate { ... }
@keyframes translateUp { ... }
@keyframes collapseDown { ... }
@keyframes collapseUp { ... }
@keyframes scaleIn { ... }
@keyframes scaleOut { ... }
@keyframes slideUpAndFade { ... }
@keyframes slideUpMoreAndFade { ... }
@keyframes slideUpMoreAndFadeReverse { ... }
@keyframes slideDownAndFade { ... }
@keyframes slideRightAndFade { ... }
@keyframes slideLeftAndFade { ... }
@keyframes circleLoaderFillReset { ... }
@keyframes popUp { ... }
@keyframes popUpReverse { ... }
@keyframes rotate { ... }
@keyframes shine { ... }
@keyframes scroll { ... }
@keyframes wipeOut { ... }
@keyframes styles_disclaimer-extend__Df1QX { ... }
@keyframes styles_disclaimer-divider-fade__L7agn { ... }
@keyframes react-loading-skeleton { ... }
@keyframes styles_noise__co5oY { ... }
@keyframes styles_moneyFall__osBok { ... }
```

<details><summary>Full keyframes CSS (31 animations)</summary>

```css
@keyframes spin{to{transform:rotate(1turn)}}
@keyframes wave{0%{opacity:0;translate:0}25%{opacity:1;translate:0 -6px}75%{opacity:1;translate:0 -6px}
@keyframes fadeIn{0%{opacity:0}
@keyframes fadeOutBlur{0%{opacity:1;filter:blur()}
@keyframes fadeInTabTranslate{0%{opacity:0;visibility:hidden;translate:0 5px}
@keyframes fadeInCopy{to{opacity:1}}
@keyframes fadeOut{0%{opacity:1}
@keyframes fadeOutTabTranslate{0%{opacity:1;visibility:visible;translate:0}
@keyframes translateUp{0%{translate:0 var(--spacing-fadeIn)}
@keyframes collapseDown{0%{height:0}
@keyframes collapseUp{0%{height:var(--radix-collapsible-content-height)}
@keyframes scaleIn{0%{opacity:0;transform:rotateX(-10deg)scale(.9)}
@keyframes scaleOut{0%{opacity:1;transform:rotateX(0)scale(1)}
@keyframes slideUpAndFade{0%{opacity:0;translate:0 2px}
@keyframes slideUpMoreAndFade{0%{opacity:0;translate:0 10px}
@keyframes slideUpMoreAndFadeReverse{0%{opacity:0;translate:0 10px}
@keyframes slideDownAndFade{0%{opacity:0;translate:0 -2px}
@keyframes slideRightAndFade{0%{opacity:0;translate:-2px}
@keyframes slideLeftAndFade{0%{opacity:0;translate:2px}
@keyframes circleLoaderFillReset{0%{stroke-dashoffset:0}
@keyframes popUp{0%{translate:0 100%;scale:.08}
@keyframes popUpReverse{0%{translate:0 100%;scale:.08}
@keyframes rotate{to{transform:rotate(1turn)}}
@keyframes shine{0%{-webkit-mask-position:0;mask-position:0}
@keyframes scroll{to{translate:calc(-50% - var(--gap)/2)0}}
@keyframes wipeOut{0%{clip-path:inset(0)}
@keyframes styles_disclaimer-extend__Df1QX{0%{padding-bottom:calc(var(--s12) + var(--consent-banner-height));translate:0 0}
@keyframes styles_disclaimer-divider-fade__L7agn{0%{opacity:1}
@keyframes react-loading-skeleton{to{transform:translateX(100%)}}
@keyframes styles_noise__co5oY{0%{background-position:0 0}10%{background-position:-5% -10%}20%{background-position:-15% 5%}30%{background-position:7% -25%}40%{background-position:20% 25%}50%{background-position:-25% 10%}60%{background-position:15% 5%}70%{background-position:0 15%}80%{background-position:25% 35%}90%{background-position:-10% 10%}
@keyframes styles_moneyFall__osBok{0%{transform:translate3d(0,-100%,0) rotate(0deg);opacity:var(--opacity)}50%{opacity:var(--opacity)}
```
</details>

### Brand Gradient Palette

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

```css
/* Gradient 1 */
background: radial-gradient(var(--tw-mask-radial-stops,var(--tw-mask-radial-size);

/* Gradient 2 */
background: linear-gradient(90deg,transparent,black 15%,black 85%,transparent);

/* Gradient 3 */
background: linear-gradient(180deg,transparent,black 10%,black 90%,transparent);

```

### Hover State CSS (Intercepted)

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

```css
/*! tailwindcss v4.1.14 | MIT License | https://tailwindcss.com */@layer properties{@supports ((-webkit-hyphens:none) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,::backdrop,:after,:before{--tw-translate-x:0;--tw-translate-y:0;--tw-translate-z:0;--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-pan-x:initial;--tw-pan-y:initial;--tw-pinch-zoom:initial;--tw-space-y-reverse:0;--tw-space-x-reverse:0;--tw-divide-x-reverse:0;--tw-border-style:solid;--tw-divide-y-reverse:0;--tw-gradient-position:initial;--tw-gradient-from:#0000;--tw-gradient-via:#0000;--tw-gradient-to:#0000;--tw-gradient-stops:initial;--tw-gradient-via-stops:initial;--tw-gradient-from-position:0%;--tw-gradient-via-position:50%;--tw-gradient-to-position:100%;--tw-leading:initial;--tw-font-weight:initial;--tw-tracking:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial;--tw-backdrop-blur:initial;--tw-backdrop-brightness:initial;--tw-backdrop-contrast:initial;--tw-backdrop-grayscale:initial;--tw-backdrop-hue-rotate:initial;--tw-backdrop-invert:initial;--tw-backdrop-opacity:initial;--tw-backdrop-saturate:initial;--tw-backdrop-sepia:initial;--tw-duration:initial;--tw-ease:initial;--tw-content:"";--tw-mask-linear:linear-gradient(#fff,#fff
```

> **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 1747 rendered nodes** — not a sample. These are the values the page *actually paints*, weighted by how often they appear.

### Measured Design Scale
**Type scale by usage** (× = paint count): `16px`×1327 · `12px`×174 · `18px`×95 · `21.008px`×59 · `28px`×32 · `42px`×14 · `65.344px`×13 · `32px`×12

**Radius scale** (× = paint count): `4px`×106 · `12px`×34 · `40px`×20 · `8px`×13 · `32px`×5

**Weights** (× = paint count): `400`×1164 · `420`×259 · `480`×248 · `360`×73 · `530`×2

**Layout gaps** (× = paint count): `normal 32px`×23 · `12px`×15 · `40px`×12 · `32px`×11 · `4px`×9 · `32px normal`×4 · `40px 32px`×3 · `normal 8px`×1

**Elevation (real shadows)**:
```css
rgba(28, 28, 35, 0.02) 0px 10px 16px 0px, rgba(28, 28, 35, 0.04) 0px 6px 10px 0px, rgba(28, 28, 35, 0.09) 0px 0px 3px 0px
```

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

```css
body { font-family:arcadia,arcadia Fallback }
h1 { font-size:clamp(2rem,.75rem + 3.126vw,4.563rem) }
h1 { font-family:var(--font-arcadia-display); font-weight:480 }
h1 { color:var(--text-default) }
h1 { font-family:var(--font-arcadia-display); font-size:clamp(1.75rem,.683rem + 2.668vw,3.938rem); font-weight:480 }
h2 { font-family:var(--font-arcadia-display); font-size:1.75rem; font-weight:480 }
@media (min-width: 48rem) h2 { font-size:2rem }
@media (min-width: 64rem) h2 { font-size:2.25rem }
@media (min-width: 80rem) h2 { font-size:2.625rem }
h2 { color:var(--text-default) }
button { border-radius:var(--radius-5xl) }
button { font-size:1rem }
```

> 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://mercury.com | 2026-06-11T06:13:09.396Z*
*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.*