deno.com

DESIGN.md

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

---
version: alpha
name: deno.com
description: "Light product system built on #ffffff with #70ffaf as the primary CTA accent. Type anchored in Inter at 72px / weight 700. Extracted automatically from https://deno.com/ — rendered styles via getComputedStyle() + CSS custom properties (token-only values may not be painted)."
narrative: |
  deno.com is built on a mid-dark canvas (oklab(0.999994 0.0000455678 0.0000200868 / 0.9)).
  The system uses rgb(112, 255, 175) as the accent for primary actions and brand signals.
  Sharp 0px corners on CTAs — architectural restraint, engineering precision alongside Inter as the primary typeface.
  A layered elevation system (7 distinct shadows) building a clear front-to-back hierarchy.
  Motion is a first-class concern — 22 keyframe animations plus transition-driven interactions.

colors:
  background: "#ffffff"
  surface-1: "#f2f0df"
  surface-2: "#f5f5f5"
  ink-muted: "#172723"
  ink-subtle: "#656d76"
  primary: "#70ffaf"
  on-primary: "#111111"
  primary-hover: "#405274"
  hairline: "#868789"
  primary-focus: "#ae01ff"
  semantic-error: "#d1242f"

typography:
  display-xl:
    fontFamily: "Inter, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 72px
    fontWeight: 700
    lineHeight: 1.1
    letterSpacing: -1.8px
  display-md:
    fontFamily: "Inter, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 36px
    fontWeight: 700
    lineHeight: 1.1
    letterSpacing: -0.9px
  headline:
    fontFamily: "Inter, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 20px
    fontWeight: 700
    lineHeight: 1.1
    letterSpacing: -0.5px
  body:
    fontFamily: "Inter, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.5
    letterSpacing: 0
  caption:
    fontFamily: "Menlo, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 13.6px
    fontWeight: 400
    lineHeight: 1.45
    letterSpacing: 0
  button:
    fontFamily: "Inter, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif"
    fontSize: 18px
    fontWeight: 700
    lineHeight: 2
    letterSpacing: 0

rounded:
  none: 0px
  xs: 4px
  sm: 8px
  md: 12px
  lg: 9997px
  xl: 9999px
  pill: 9997px

spacing:
  xxs: 2px
  xs: 4px
  sm: 8px
  md: 24px
  lg: 48px
  xl: 56px
  xxl: 144px

components:
  button-outline:
    backgroundColor: "transparent"
    textColor: "{colors.ink-muted}"
    typography: "{typography.body}"
    rounded: "{rounded.xs}"
    padding: 4px 8px
  button-ghost:
    backgroundColor: "transparent"
    textColor: "#000000"
    typography: "{typography.button}"
    rounded: "{rounded.xs}"
    padding: 0px 8px
  button-ghost-2:
    backgroundColor: "transparent"
    textColor: "#56575a"
    typography: "{typography.caption}"
    rounded: "{rounded.xl}"
    padding: 12px 16px
  input-text-input:
    backgroundColor: "transparent"
    textColor: "#000000"
    typography: "{typography.body}"
    rounded: "{rounded.sm}"
    padding: 4px 4px 4px 32px
  navigation-main-nav:
    backgroundColor: "{colors.background}"
    typography: "{typography.button}"
    rounded: "{rounded.none}"
  cta-banner-full-width-cta:
    backgroundColor: "#66c2ff"
    textColor: "#002633"
    typography: "{typography.button}"
    rounded: "{rounded.sm}"
    padding: 12px 20px
  code-block-inline-code--pre:
    backgroundColor: "transparent"
    textColor: "#000000"
    typography: "{typography.body}"
    rounded: "{rounded.none}"
    padding: 32px 16px

extracted_at: "2026-06-11T06:08:52.932Z"
completeness: 99
scoreVersion: "v2"

---

# Design System — deno.com
> Extracted automatically by Prism from https://deno.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**: sparse  |  **Motion**: expressive  |  **Weight**: heavy  |  **Aesthetic**: soft-rounded

| Dimension | Value | Signal |
|---|---|---|
| Canvas | neutral | `#ffffff` |
| Type posture | sans-led (Inter) | "All your favorite tools, built" |
| Color assertion | dual-accent | #70ffaf |
| Whitespace | sparse | section rhythm 64px |
| Interaction | expressive | 22 keyframes, 18 transitions |
| Radius language | soft-pill | from token scale |

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

> **🤖 TL;DR for AI agents** (read this first — saves you scanning the full doc):
>
> - **Canvas**: `oklab(0.999994 0.0000455678 0.0000200868 / 0.9)` is the page background. Every component composits against this.
> - **Accent**: `rgb(112, 255, 175)` for primary CTAs ONLY. Never decorative.
> - **Body type**: 16px (token: `typography.body`). Default for ALL text not in a heading role.
> - **Section rhythm**: 64px between major bands. Card padding: 48px.
> - **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

**Signature:** a gradient wash in the hero. This is the brand's most recognizable visual — reproduce it, don't replace it with a generic card or flat panel.

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

Typography is anchored in **Inter**, deployed with OpenType features enabled globally (`"ss12"`). These aren't decorative — they're load-bearing: without them, the typeface reverts to its generic state and the design loses its specific texture. The weight scale rejects the standard 100/200/.../900 ladder in favor of custom values (max **700** in this system) — a deliberate signal that this design system is precisely tuned, not assembled from defaults. Negative letter-spacing at display sizes (-1.8px at 72px) compresses headlines into engineered blocks, dense and precise. 

Body text reads in Pure Black (`#000000`) (contrast ratio 21.0:1, well above WCAG AA). **Runtime** (`#70ffaf`) 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. The site uses a variable font with CASL + CRSV + MONO + SLNT axes, enabling precise weight/width control across the type hierarchy. 

**Key Characteristics:**
- Background: White (`#ffffff`)
- Primary typeface: Inter
- Accent: Runtime (`#70ffaf`)
- Display: 72px weight 700, letter-spacing -1.8px
- Shadow system: 7 distinct elevation levels
- Custom fonts loaded: Inter, Moranga, Recursive

## 2. Color Palette & Roles

### Background & Surface
- **White** (`#ffffff`): Page background (primary)
- **Canvas Default Transparent** (`transparent`): Surface / elevated background (CSS var)
- **Canvas Subtle** (`#f6f8fa`): Surface / elevated background (CSS var)
- **Beige** (`#f2f0df`): Surface / elevated background
- **Off-White** (`#f5f5f5`): Surface / elevated background

### Text & Content
- **Pure Black** (`#000000`): Primary body text
- **Fg Muted** (`#656d76`): Text (CSS var)
- **Fg Default** (`#1f2328`): Text (CSS var)
- **Warm Brown** (`#172723`): Secondary text
- **Black** (`#0b0d11`): Secondary text

### Accent & Interactive
- **Accent Emphasis** (`#0969da`): Accent / interactive (CSS var)
- **Runtime** (`#70ffaf`): Interactive / accent
- **Slate Gray** (`#596886`): Interactive / accent
- **Slate** (`#405274`): Interactive / accent
- **Cobalt Blue** (`#0550ae`): Interactive / accent
- **#6639ba** (`#6639ba`): Interactive / accent
- **Crimson** (`#cf222e`): Interactive / accent

### Border & Divider
- **Border Muted** (`#d8dee4`): Border (CSS var)
- **Border Default** (`#d0d7de`): Border (CSS var)
- **Silver** (`#d5cec9`): Borders / dividers
- **Whitesmoke** (`#e5eaea`): Borders / dividers
- **Light Blue** (`#cbd1e1`): Borders / dividers
- **#d2dde2** (`#d2dde2`): Borders / dividers

### Full Extracted Palette
**59 colors rendered on the page** + **33** more declared in design tokens (CSS custom properties — not necessarily painted). (23 categorized above + 69 additional below.)
Rendered values are read via `getComputedStyle()`; token values come from CSS variable declarations. Third-party logo colors are filtered out.

- `#868789` — Slate Grey
- `#9ea0a5` — Grey
- `#56575a` — Charcoal
- `#25272b` — Near-Black
- `#121417` — Offblack
- `#0a3069` — #0a3069
- `#953800` — Chocolate
- `#191b1f` — Near-Black
- `#ffd601` — Gold
- `#01ff67` — #01ff67
- `#01c2ff` — Deploy
- `#db01ff` — #db01ff
- `#57606a` — Slate
- `#f8f9fc` — Off-White
- `#0a0e1c` — Jet Black
- `#f1f3f9` — Off-White
- `#a8b2c8` — Sage
- `#0077cc` — M Tricolor Blue
- `#475269` — Slate
- `#ffdb1e` — Fresh
- `#ffe600` — Gold
- `#41b883` — #41b883
- `#34495e` — Slate
- `#ff5b11` — Bright Orange
- `#ff9758` — Tangerine
- `#00dc82` — #00dc82
- `#ff3e00` — Bright Orange
- `#3ecc5f` — #3ecc5f
- `#44d860` — #44d860
- `#ffff50` — #ffff50
- `#61dafb` — #61dafb
- `#17191e` — Near-Black
- *…+37 more in `raw-css.json` (`desktop.allColors`).*

### CSS Custom Properties (Design Tokens)

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

**Font Weight Token**
- `--text-heading-sm--font-weight`: `bold`
- `--font-weight-bold`: `700`
- `--text-heading-lg--font-weight`: `bold`
- `--text-heading-md--font-weight`: `bold`

**Secondary Color**
- `--color-subhosting`: `#66c2ff`
- `--color-subhosting-dark`: `#004166`

**Primary Brand Color**
- `--color-accent-emphasis`: `#0969da`
- `--color-accent-fg`: `#0969da`

**Warning**
- `--color-yellow-400`: `oklch(85.2% .199 91.936)`
- `--color-yellow-50`: `oklch(98.7% .026 102.212)`
- `--color-yellow-200`: `oklch(94.5% .129 101.54)`
- `--color-yellow-600`: `oklch(68.1% .162 75.834)`

**Spacing Token**
- `--text-pullquote--letter-spacing`: `-.025em`
- `--tw-space-x-reverse`: `0`
- `--text-heading-3xl--letter-spacing`: `-.025em`
- `--text-heading-md--letter-spacing`: `-.025em`

**Success**
- `--color-green-500`: `oklch(72.3% .219 149.579)`
- `--color-green-600`: `oklch(62.7% .194 149.214)`
- `--color-green-400`: `oklch(79.2% .209 151.711)`
- `--color-green-200`: `oklch(92.5% .084 155.995)`

**Border Radius Token**
- `--radius-sm`: `.25rem`
- `--radius-2xl`: `1rem`
- `--radius-md`: `.375rem`
- `--radius-lg`: `.5rem`

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

**Background**
- `--color-canvas-default-transparent`: `rgba(255,255,255,0)`
- `--color-canvas-subtle`: `#f6f8fa`
- `--color-canvas-default`: `#fff`

**Border**
- `--color-border-muted`: `#d8dee4`
- `--color-border-default`: `#d0d7de`

**Error / Destructive**
- `--color-red-200`: `oklch(88.5% .062 18.334)`
- `--color-red-400`: `oklch(70.4% .191 22.216)`
- `--color-red-800`: `oklch(44.4% .177 26.899)`
- `--color-red-500`: `oklch(63.7% .237 25.331)`

**Font Family Token**
- `--default-mono-font-family`: `Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace`

**Other tokens**
- `--color-purple-200`: `oklch(90.2% .063 306.703)`
- `--color-runtime`: `#70ffaf`
- `--color-zinc-100`: `oklch(96.7% .001 286.375)`
- `--text-heading-3xl`: `clamp(3rem,calc(2.5rem + 3vw),6.25rem)`
- `--color-prettylights-syntax-markup-deleted-bg`: `#ffebe9`
- `--color-orange-600`: `oklch(64.6% .222 41.116)`
- `--color-prettylights-syntax-markup-inserted-bg`: `#dafbe1`
- `--text-heading-lg`: `clamp(1rem,calc(.75rem + 3vw),2.25rem)`

## 3. Typography Rules

### Font Families
- **Primary**: `Inter`
- **Secondary**: `Moranga`
- **Font 3**: `Recursive`
- **Font 4**: `Menlo`

### Custom Fonts Loaded
- **Inter** weight 400 (normal)
- **Inter** weight 700 (normal)
- **Moranga** weight normal (normal)
- **Moranga** weight bold (normal)
- **Recursive** weight 300 1000 (normal)

### Typography Hierarchy

| Role | Font | Size | Weight | Line Height | Letter Spacing | Notes |
|------|------|------|--------|-------------|----------------|-------|
| Display Hero | Inter | 72px | 700 | 1.1 | -1.8px | Main headline (h1) |
| Sub-heading | Inter | 36px | 700 | 1.1 | -0.9px | Third-level heading (h3) |
| Label Heading | Inter | 20px | 700 | 1.1 | -0.5px | Small heading (H4) |
| Button Large | Inter | 18px | 700 | 2 | normal | Button label (18px) |
| Button Large | Inter | 18px | 400 | 2 | normal | Button label (18px) |
| Body | Inter | 16px | 400 | 1.5 | normal | Standard reading text |
| Button Large | Inter | 16px | 700 | 1.5 | normal | Button label (16px) |
| Caption / Badge | Menlo | 13.6px | 400 | 1.45 | normal | small text (13.6px) |

### Font Weight Scale

CSS custom properties define 4 explicit weight steps:
- `--font-weight-normal`: `400` — Regular
- `--font-weight-medium`: `500` — Medium
- `--font-weight-semibold`: `650` — SemiBold (custom, ~600)
- `--font-weight-bold`: `700` — Bold

### Full Font Size Scale

Sizes detected in the design (descending): `72px`, `44px`, `36px`, `28px`, `27px`, `20px`, `18px`, `16px`, `14px`, `13.60px`, `12px`, `10px`

> 6 size(s) detected outside the sampled hierarchy (44px, 28px, 27px, 14px, 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:

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

**Clone instruction:** Enable these in your CSS:
```css
body {
  font-feature-settings: "ss12", "liga";
}
```

**Variable font axes:**
- CASL axis
- CRSV axis
- MONO axis
- SLNT axis

## 4. Component Stylings

### Buttons

**Outline**
- Background: `transparent`
- Text: `#172723` `{colors.ink-muted}`
- Padding: 4px 8px
- Radius: 6px
- Border: 2px solid rgb(23, 39, 35)
- Font: 16px weight 700
- Use: Secondary action with border
- Focus: outline: `rgb(174, 1, 255) solid 2px`

**Ghost**
- Background: `transparent`
- Text: `#000000`
- Padding: 0px 8px
- Radius: 6px
- Font: 18px weight 700
- Use: Subtle action, toolbar, nav button
- Focus: outline: `rgb(174, 1, 255) solid 2px`

**Ghost**
- Background: `transparent`
- Text: `#56575a`
- Padding: 12px 16px
- Radius: 9999px
- Font: 14px weight 400
- Use: Subtle action, toolbar, nav button
- Focus: outline: `rgb(174, 1, 255) solid 2px`

### Inputs & Forms

**Text Input**
- Background: `transparent`
- Text: `#000000`
- Padding: 4px 4px 4px 32px
- Radius: 8px
- Border: 1px solid rgb(134, 135, 137)
- Font: 16px weight 400
- Use: Text fields, search inputs

### Navigation

**Main Nav**
- Background: `#ffffff` `{colors.background}`
- Padding: 0px
- Radius: none
- Shadow: `rgba(0, 0, 0, 0.1) 0px 1px 3px 0px, rgba(0, 0, 0, 0.1) 0px 1px 2px -1px`
- Font: 18px weight 400
- Use: Fixed/sticky flex nav — N/A items

### CTA Banners

**Full-width CTA**
- Background: `#66c2ff`
- Text: `#002633`
- Padding: 12px 20px
- Radius: 8px
- Font: 18px weight 700
- Use: Full-width conversion strip with headline + button
- Focus: outline: `rgb(174, 1, 255) solid 2px`

### Code Blocks

**Inline Code / Pre**
- Background: `transparent`
- Text: `#000000`
- Padding: 32px 16px
- Radius: 0px
- Font: 16px weight 400 — Menlo
- Use: Code samples, CLI commands, syntax highlighting blocks


## 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(23, 39, 35)"
    focus:
      bg: "transparent"
      fg: "inherit"
  input:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(0, 0, 0)"
      border: "1px solid rgb(134, 135, 137)"
  link:
    default:
      bg: "rgb(255, 255, 255)"
      fg: "rgb(0, 0, 0)"
  navLink:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(0, 0, 0)"
  badge:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(31, 35, 40)"
  footerLink:
    default:
      bg: "rgba(0, 0, 0, 0)"
      fg: "rgb(112, 255, 175)"
```

**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
- **2 shape(s)** in this system: `Outline`, `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

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

### Code Blocks
- **1 shape(s)** in this system: `Inline Code / Pre`
- **DO NOT introduce new code blocks variants** without justification

## 5. Layout Principles

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

### Grid
Single column, centered content

### Max Width
1080px

### Spacing System
Generous spacing — editorial breathing room

| Token | Value |
|-------|-------|
| xxs | 2px |
| xs | 4px |
| sm | 8px |
| md | 24px |
| base | 32px |
| lg | 48px |
| xl | 56px |
| 2xl | 64px |
| 3xl | 144px |

### 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 | 9997px | Large rounded elements, pill segments |
| Xl | 9999px | Category strips, featured containers |
| Full | 9997px | Pills, avatars, circular elements |

### Shape Language

| Component | Border Radius |
|-----------|---------------|
| Buttons | `6px` |
| Inputs & Forms | `8px` |
| Navigation | `none` |
| CTA Banners | `8px` |
| Code Blocks | `0px` |
| Page Body | `0px` |
| Primary Input | `8px` |

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

**Full Radius Spectrum**: 4px, 6px, 7px, 8px, 12px, full/pill, full/pill (from `allBorderRadii` scan)


## 5b. Spacing Rhythm Names

**Measured section padding**: bands use ~144px internal vertical padding (up to 144px) — **very airy / premium**. (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** | `144px` | Top/bottom of full-bleed hero sections |
| **section** | `56px` | Between major bands (color change, content shift) |
| **subsection** | `48px` | Within a section, between content groups |
| **card** | `24px` | Card padding, list-item spacing |
| **compact** | `8px` | Form fields, tight clusters, badge padding |
| **micro** | `4px` | Icon-text gap, tag inner padding |

**Agent rule**: NEVER hardcode raw pixel values for spacing in generated UI. Always reference these named tokens (`spacing-rhythm.section`, etc.).

## 5c. Widget & Structure Library

Structural patterns extracted from the page DOM — these are the **blueprints** an agent should follow to reproduce the page architecture (not just CSS values).

**5/8 structural patterns detected.**

### Hero Pattern

- **Composition:** left-aligned — 
- **Viewport coverage:** 386px tall (not full-viewport)
- **Heading:** "Uncomplicate JavaScript" — 72px left-aligned
- **CTAs:** 2 (primary: "Docs")
- **Clone instruction:** Reproduce the **left-aligned** 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:** logo-left-links-left — Logo and links both on the left (CTAs typically right)
- **Height:** 48px
- **Logo:** ✓ present
- **Nav links:** 3 primary items
- **CTAs in nav:** 0 (no buttons — links only)
- **Search:** ✓ search input visible in nav
- **Clone instruction:** Build a static logo left links left navigation. Link-only — no button styling needed.

### Card Grid Pattern

- **Card count:** 7 cards detected
- **Columns (desktop):** 1-up grid
- **Card dimensions:** 1024×201px (aspect 5.09:1)
- **Gap:** 0px between cards
- **Content:** ✗ no image
- **Clone instruction:** Build a 1-column grid (desktop) with cards at ~5.09:1 aspect ratio. Text/icon-only cards (no photography).

### Testimonial Pattern

- **Count:** 7 testimonial blocks
- **Layout:** grid
- **Avg quote length:** 136 chars (medium quote)
- **Includes:** ✗ no avatars | ✗ no logos | ✗ no ratings
- **Clone instruction:** Build a grid of 7 testimonials.   

### Footer Pattern

- **Columns:** 1
- **Links:** 28 total
- **Height:** 416px
- **Includes:** ✗ no newsletter | ✓ social icons |  ✓ copyright
- **Clone instruction:** Build a 1-column footer with ~28 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, 0.1) 0px 1px 3px 0px`,<br>`rgba(0, 0, 0, 0.1) 0px 1px 2px -1px` | Cards, elevated surfaces |
| Layered (Level 2) | <br>`rgba(0, 0, 0, 0.25) 0px 25px 50px -12px` | Cards, elevated surfaces |
| Layered (Level 3) | <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(203, 209, 225, 0.4) 2px 4px 0px 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 |
|--------------|-------|---------------|
| `--default-transition-timing-function` | `cubic-bezier(.4,0,.2,1)` | Ease Out — Decelerating |
| `--ease-out` | `cubic-bezier(0,0,.2,1)` | Ease Out — Decelerating |
| `--ease-in-out` | `cubic-bezier(.4,0,.2,1)` | Ease Out — Decelerating |

### Duration Scale

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

### Copy-Paste Transition Snippets

**All Props**
```css
transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
```

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

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

### Keyframe Animation Catalog

| Animation Name | Type | Animated Props | Use Hint |
|----------------|------|----------------|----------|
| `spin` | Rotate / Spin | transform | Loading indicator |
| `move` | Slide | transform | UI transition |
| `buttonBorderSpin` | Custom | --border-gradient-angle | Loading indicator |
| `firstHalfBorderSpin` | Custom | --border-gradient-angle | Loading indicator |
| `secondHalfBorderSpin` | Custom | --border-gradient-angle | Loading indicator |
| `badgeBorderSpin` | Custom | --border-gradient-angle | Loading indicator |
| `fadeInSlideUp` | Fade + Move | opacity, transform | Element entrance |
| `fadeIn` | Fade | opacity | Element entrance |
| `infra-border-fade` | Custom |  | UI transition |
| `infra-desaturate` | Filter | filter | UI transition |
| `infra-scale-y` | Scale | transform | Focus / emphasis |
| `dino-peek` | Slide | transform | UI transition |
| `blink` | Scale | transform | Attention / status |
| `cloud_drift` | Slide | transform | UI transition |
| `rain` | Slide | transform | UI transition |
| `rain-fade` | Fade | opacity | UI transition |
| `steam` | Fade + Move | transform, opacity | UI transition |
| `copy` | Custom |  | UI transition |
| `ws_grow` | Scale | transform | UI transition |
| `ws_slide_left` | Fade + Move | transform, opacity | UI transition |

> *2 additional animations omitted (repetitive variants). See raw keyframes in `raw-css.json`.*

### Motion Fingerprint

- **Speed Character**: Balanced Pacing (median duration: `200ms`)
- **Dominant Easing**: custom cubic-bezier curves
- **Animation Library**: 22 unique animations (22 total including variants)

> This design moves with balanced pacing timing using custom cubic-bezier curves, creating a UI that feels natural and fluid.

## 8. Do's and Don'ts

### Do
- Use Inter as the primary typeface — it defines the brand personality
- Use negative letter-spacing (-1.8px) 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 Runtime (`#70ffaf`) 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
- Style form inputs with a `1px solid rgb(134, 135, 137)` border — use border-based inputs, not floating labels or underline-only
- Maintain nav height at 48px — consistent vertical space for the navigation bar
- Respect the 4px–56px spacing range — the design uses a wide scale for visual breathing room
- Include exactly 2 CTAs in the hero (primary + secondary) — this design pattern is multi-action, not single-purpose
- Include a search input directly in the nav — discoverability is a primary UX value here
- Lay out testimonials in a grid (7+ items) — quantity signals scale and trust

### 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 remove the input border — the border is the primary affordance indicator for form fields
- Don't collapse or hide the nav on scroll without an explicit scroll-triggered animation — the design uses fixed nav presence
- Don't make the nav sticky — this design lets it scroll away to maximize content focus
- Don't put a CTA button in the nav — this design uses links only at the top


## 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 `oklab(0.999994 0.0000455678 0.0000200868 / 0.9)` as the base canvas"
    why: "Every component is designed to composit against this exact tone"
    test: "document.body.style.backgroundColor === 'oklab(0.999994 0.0000455678 0.0000200868 / 0.9)'"
  - id: brand-accent-001
    type: do
    rule: "Reserve `rgb(112, 255, 175)` for primary CTAs and brand-mark signals only"
    why: "Single chromatic assertion device — overuse dilutes meaning"
    test: "querySelectorAll('[style*=\"rgb(112, 255, 175)\"]').length <= 3 per fold"
```

## 9. Responsive Behavior

### Breakpoints
| Name | Width | Key Changes |
|------|-------|-------------|
| Mobile | 440px | Single column, compact spacing |
| Tablet | 768px | Multi-column grids begin |
| Tablet | 1024px | Multi-column grids begin |
| Desktop | 1080px | Full feature layout |

### Token Diff — Desktop vs Mobile

| Element | Property | Desktop | Mobile |
|---------|----------|---------|--------|
| heading | font-size | `72px` | `39.25px` |
| heading | line-height | `79.2px` | `43.175px` |
| heading | letter-spacing | `-1.8px` | `-0.98125px` |
| nav | display | `flex` | `grid` |

### Collapsing Strategy
- Headlines: 72px → 39.25px on mobile
- Navigation: flex → grid on mobile
- Cards: multi-column → stacked vertical on mobile
- Footer: multi-column → stacked single column on mobile

### Touch Targets
- Buttons: 0px padding
- Navigation: adequate spacing between items
- Interactive elements: minimum 44px touch target recommended

### Collapsing Narrative

How the structural patterns adapt from desktop to mobile (extracted from both viewport extractions):

- **Hero collapses left-aligned → centered** — composition shifts (verify on actual mobile render).
- **Navigation collapses to hamburger** — 3 links visible on desktop, 1 on mobile (the rest hide behind a menu toggle).


## 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** — 1 frosted/blur layer(s) (e.g. `blur(12px)`).
- **Mesh gradients** — 5 multi-stop organic color field(s) as background atmosphere.
- **Clip-path shapes** — 8 non-rectangular cut(s).
- **Scroll-driven reveals** — content animates in on scroll (CSS scroll-timeline). Build fade/translate reveal-on-scroll for below-fold bands.
- **CSS-variable animations** (5) — animated custom properties.

> **Motion fingerprint**: glassmorphism (1 layers), mesh gradients, non-rectangular shapes (10), CSS scroll-driven animations

## 9b. Visual Tone & Photography

**Tone:** Illustration-driven

The site relies primarily on illustrations, vector art, and decorative SVG elements rather than photography. Use commissioned illustrations, icon sets, or generated graphics for clones — stock photos will feel off-brand.

**Canonical Brand Image (OG):**
- https://deno.com/og/image.jpg
  *This is the image shown when the site is shared on social media — represents the brand visual essence.*

**Hero Image (above-fold dominant visual):**
- Aspect: 1:1 (square / portrait)
- Rendered size: 578×578px
- *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): 3 (13%)
- Portrait (<0.87): 5 (22%)
- Square (0.87–1.15): 14 (61%)
- Ultra-wide (>2.3): 1 (4%)

**Media Format Mix:**
- WebP: 5 (optimized photo/illustration hybrid)
- PNG: 1 (logos, transparent UI elements, mockups)
- SVG: 19 (icons, illustrations, decorative geometry)

**Average rendered image size:** 211×200px
**Above-fold image count:** 5 / 23

**Decorative Patterns Detected:**
- 20 multi-stop linear gradients (mesh-like, 3+ color stops) — the brand leans on rich color transitions for visual depth
- 1 radial gradient — circular color blooms used for spotlight/glow effects
- 2 large decorative SVG shapes (≥200×200px, non-icon) — likely blob/illustration accents
- **Glassmorphism** detected (`backdrop-filter: blur`) — layered transparent surfaces with blur, modern OS-like aesthetic

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

**Imagery Guidance for clones:**
- Use vector illustration as the primary visual language — photos will read as off-brand.
- Maintain consistent illustration style (line weight, color palette) across the site.

## 10. Agent Prompt Guide

### Quick Reference
- Background: White (`#ffffff`)
- Primary text: Pure Black (`#000000`)
- Accent: Runtime (`#70ffaf`)
- Border: Slate Grey (`#868789`)
- Font: Inter
- Body: 16px weight 400

### Example Component Prompts
- "Create a hero section on White background (#ffffff). Headline at 72px Inter weight 700, line-height 1.1, letter-spacing -1.8px, color #000000."
- "Create the primary CTA button: `#70ffaf` background, `#000000` text, 9999px border-radius, 2px padding, 700 weight, Inter font."
- "Build navigation: static on `#ffffff`. Inter 18px weight 400 for links."

### Iteration Guide
1. **Canvas**: Set the light canvas to White (`#ffffff`) — every component is composited against this exact base.
2. **Typography**: All type in Inter, weight range 400–700. Never exceed 700 — heavier weights break the brand's tonal restraint.
3. **Accent**: Runtime (`#70ffaf`) — one accent, applied consistently to CTAs, active states, and links. Never introduce a second saturated color.
4. **Motion**: All transitions use `cubic-bezier(0.4,0,0.2,1)`. Timing: 150ms for micro-interactions, 150ms for layout changes. Never use linear for UI transitions — preserve the brand's easing personality.
5. **Shape**: CTAs at `0px`. Apply border-radius from the extracted scale only — don't invent intermediate values.
6. **Spacing**: Use the `--ca-space-*` token scale (4px–56px). 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-background: #ffffff;
  --ca-surface-1: #f2f0df;
  --ca-surface-2: #f5f5f5;
  --ca-ink-muted: #172723;
  --ca-ink-subtle: #656d76;
  --ca-primary: #70ffaf;
  --ca-on-primary: #111111;
  --ca-primary-hover: #405274;
  --ca-hairline: #868789;
  --ca-primary-focus: #ae01ff;
  --ca-semantic-error: #d1242f;
}

/* Typography */
:root {
  --ca-font-primary: "Inter", system-ui, sans-serif;
  --ca-text-display: 72px;
  --ca-text-body: 16px;
  --ca-text-caption: 13.6px;
  --ca-text-button: 18px;
}

/* Spacing & Radius */
:root {
  --ca-space-xxs: 2px;
  --ca-space-xs: 4px;
  --ca-space-sm: 8px;
  --ca-space-md: 24px;
  --ca-space-base: 32px;
  --ca-space-lg: 48px;
  --ca-space-xl: 56px;
  --ca-space-2xl: 64px;
  --ca-space-3xl: 144px;
  --ca-radius-none: 0px;
  --ca-radius-xs: 4px;
  --ca-radius-sm: 8px;
  --ca-radius-md: 12px;
  --ca-radius-lg: 9997px;
  --ca-radius-xl: 9999px;
  --ca-radius-full: 9997px;
}

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


## 13. Page Structure Skeleton

*The actual layout the source site uses. Reproduce these sections in order to match the site structure.*

```yaml
page-skeleton:
  - section: hero
    tag: div
    height: 900px
    width: full-bleed
    layout: block
    children: 1
  - section: header
    tag: header
    classes: ["z-50", "dark:text-gray-50", "sticky", "top-0"]
    height: 96px
    width: full-bleed
    layout: block
    children: 3
    bg: "oklab(0.999994 0.0000455678 0.0000200868 / 0.9)"
    vertical-padding: ~24px
  - section: logo-strip
    tag: div
    classes: ["section-x-inset-xl", "py-3", "sm:py-6"]
    height: 96px
    width: 1280px
    layout: block
    children: 1
    vertical-padding: ~24px
    padding: "24px 56px"
  - section: feature-section
    tag: div
    classes: ["grid", "place-content-center", "bg-gradient-to-tr", "from-white"]
    height: 706px
    width: full-bleed
    layout: grid: 1-col gap=normal
    children: 1
    bg-treatment: linear-gradient
    vertical-padding: ~64px (generous)
    padding: "64px 0px"
  - section: feature-section
    tag: main
    height: 14775px
    width: full-bleed
    layout: block
    children: 1
  - section: feature-section
    tag: div
    classes: ["md:col-start-1", "md:row-start-1", "section-x-inset-xl"]
    height: 578px
    width: 1280px
    layout: block
    children: 1
    padding: "0px 56px"
  - section: feature-section
    tag: div
    classes: ["pt-16", "pb-8", "text-center", "flex"]
    height: 349px
    width: full-bleed
    layout: flex-column justify=center
    children: 1
    bg: "rgb(255, 255, 255)"
    vertical-padding: ~48px
    padding: "64px 0px 32px"
  - section: feature-section
    tag: div
    classes: ["flex", "flex-col", "items-center", "justify-center"]
    height: 1315px
    width: full-bleed
    layout: flex-column justify=center
    children: 1
    bg-treatment: mesh-gradient
    vertical-padding: ~144px (airy)
    padding: "144px 0px"
  - section: feature-section
    tag: div
    classes: ["w-full", "flex", "flex-col", "items-center"]
    height: 1027px
    width: 1280px
    layout: flex-column justify=normal
    children: 1
    padding: "0px 56px"
  - section: feature-section
    tag: div
    classes: ["flex", "flex-col", "items-center", "justify-center"]
    height: 1767px
    width: full-bleed
    layout: flex-column justify=center
    children: 1
    bg-treatment: linear-gradient
    vertical-padding: ~144px (airy)
    padding: "144px 0px"
  - section: feature-section
    tag: div
    classes: ["w-full", "flex", "flex-col", "items-center"]
    height: 1479px
    width: 1280px
    layout: flex-column justify=normal
    children: 2
    padding: "0px 56px"
  - section: feature-section
    tag: div
    classes: ["flex", "flex-col", "items-center", "justify-center"]
    height: 1203px
    width: full-bleed
    layout: flex-column justify=center
    children: 1
    bg: "rgba(255, 255, 255, 0.01)"
    vertical-padding: ~144px (airy)
    padding: "144px 0px"
  - section: feature-section
    tag: div
    classes: ["w-full", "flex", "flex-col", "items-center"]
    height: 915px
    width: 1280px
    layout: flex-column justify=normal
    children: 2
    padding: "0px 56px"
  - section: feature-section
    tag: div
    classes: ["flex", "flex-col", "items-center", "justify-center"]
    height: 1695px
    width: full-bleed
    layout: flex-column justify=center
    children: 1
    bg-treatment: linear-gradient
    vertical-padding: ~144px (airy)
    padding: "144px 0px"
  - section: feature-section
    tag: div
    classes: ["w-full", "flex", "flex-col", "items-center"]
    height: 1407px
    width: 1280px
    layout: flex-column justify=normal
    children: 2
    padding: "0px 56px"
  - section: feature-section
    tag: div
    classes: ["flex", "flex-col", "items-center", "justify-center"]
    height: 1067px
    width: full-bleed
    layout: flex-column justify=center
    children: 1
    vertical-padding: ~144px (airy)
    padding: "144px 0px"
  - section: feature-section
    tag: div
    classes: ["w-full", "flex", "flex-col", "items-center"]
    height: 779px
    width: 1280px
    layout: flex-column justify=normal
    children: 3
    padding: "0px 56px"
  - section: feature-section
    tag: div
    classes: ["flex", "flex-col", "items-center", "justify-center"]
    height: 914px
    width: full-bleed
    layout: flex-column justify=center
    children: 1
    vertical-padding: ~144px (airy)
    padding: "144px 0px"
  - section: feature-section
    tag: div
    classes: ["w-full", "flex", "flex-col", "items-center"]
    height: 626px
    width: 1280px
    layout: flex-column justify=normal
    children: 1
    padding: "0px 56px"
  - section: feature-section
    tag: div
    classes: ["flex", "flex-col", "items-center", "justify-center"]
    height: 597px
    width: full-bleed
    layout: flex-column justify=center
    children: 1
    vertical-padding: ~144px (airy)
    padding: "144px 0px"
  - section: feature-section
    tag: div
    classes: ["w-full", "flex", "flex-col", "items-center"]
    height: 309px
    width: 1280px
    layout: flex-column justify=normal
    children: 1
    padding: "0px 56px"
  - section: feature-section
    tag: div
    classes: ["deploy-page", "border-b", "border-deploy-neutral-350"]
    height: 1977px
    width: full-bleed
    layout: block
    children: 2
    bg: "rgb(248, 249, 252)"
    vertical-padding: ~32px
  - section: feature-section
    tag: div
    classes: ["w-full", "flex", "flex-col", "items-center"]
    height: 1886px
    width: 1280px
    layout: flex-column justify=normal
    children: 4
    bg: "rgb(241, 243, 249)"
    vertical-padding: ~144px (airy)
    padding: "144px 56px"
  - section: feature-section
    tag: div
    classes: ["flex", "flex-col", "items-center", "justify-center"]
    height: 1779px
    width: full-bleed
    layout: flex-column justify=center
    children: 1
    bg-treatment: mesh-gradient
    vertical-padding: ~144px (airy)
    padding: "144px 0px"
  - section: feature-section
    tag: div
    classes: ["w-full", "flex", "flex-col", "items-center"]
    height: 1490px
    width: 1280px
    layout: flex-column justify=normal
    children: 4
    padding: "0px 56px"
```

**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:
    - "Install Deno 2.8.2"
    - "Deno is the open-source JavaScript runtime for the modern web."
    - "All your favorite tools, built-in and ready to go"
    - "Built on web standards"
    - "— The cloud built for modern JavaScript —"
    - "Open-source"
  sub-headings:
    - "Enterprise-grade JavaScript"
    - "Just run"
    - "Seamless"
    - "Consistent code from browser to backend"
    - "Code linter"
    - "High-performance networking"
  ctas:
    - "Skip to main content"
    - "Read the post->"
    - "Dismiss"
    - "Products"
    - "Docs"
    - "Modules"
    - "GitHub"
    - "MacOS/Linux"
  navigation:
    - "Docs"
    - "Blog"
  footer-links:
    - "Deno"
    - "GitHub"
    - "Discord"
    - "All systems operational"
```

**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:
  logo:
    count: 14
    avg-ratio: 3.32
    common-aspect: "~16:6 banner"
    sample-alts:
      - "Slack"
      - "Netlify"
      - "GitHub"
  product:
    count: 5
    avg-ratio: 1.00
    common-aspect: "~1:1 square"
  thumbnail:
    count: 10
    avg-ratio: 0.99
    common-aspect: "~1:1 square"
    sample-alts:
      - "TypeScript"
      - "Docker"
      - "AWS Lambda distribution"
```

**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">
  Skip to main content
</button>
```
_Source pattern detected: padding `8px` · radius `0px` · weight `400`_

**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** 1 · **auth** 1 · **pricing** 1 · **docs** 15 · **blog** 2 · **social** 6 · **footer** 2 · **other** 32

**Primary actions (conversion path):**
- Account access — "Sign in" (login/signup) → `https://console.deno.com/`

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

*Runtime* — medium confidence, 12 items:

| Title | Featured image | Link |
|---|---|---|
| More about TypeScript in Deno | — | https://docs.deno.com/runtime/fundamentals/typescript/ |
| Node and npm support | — | https://docs.deno.com/runtime/manual/node |
| Web APIs in Deno | — | https://docs.deno.com/runtime/manual/runtime/web_platform_apis/ |
| Security in Deno | — | https://docs.deno.com/runtime/manual/basics/permissions |
| View documentation | — | https://docs.deno.com/runtime/manual/runtime/http_server_apis/ |
| How to Deploy Deno to Digital Ocean | `digitalocean-light.svg` (ar 1) | https://docs.deno.com/runtime/manual/advanced/deploying_deno/digital_ocean |
| How to Deploy to Google Cloud Run | `gcloud-light.svg` (ar 1) | https://docs.deno.com/runtime/manual/advanced/deploying_deno/google_cloud_run |
| Install now | — | https://docs.deno.com/runtime/manual |

**Signals:** 44/60 links carry a featured image · device mockups detected: laptop ×1 · dominant link roles: content-card (40), inline-link (14), footer-link (4).


---
## Extraction Completeness: 99/100 (A)

| Category | Score | Max | Detail |
|----------|-------|-----|--------|
| Colors & Palette | 25 | 25 | 23 named colors |
| Typography | 20 | 20 | 8 roles defined |
| Components | 20 | 20 | 5 specs extracted |
| Motion & Interaction | 15 | 15 | Keyframes, easing vars |
| CSS Custom Properties | 10 | 10 | 308 vars |
| Responsive Breakpoints | 4 | 5 | 4 breakpoints |
| Variable Fonts | 5 | 5 | CASL, CRSV, MONO, SLNT axes |

## 12. Known Gaps & Confidence

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

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

- **Licensed web fonts (Inter, Moranga, Recursive)** — detected but not downloaded. Substitute with your licensed copy or a close fallback (see Typography section for metrics).
- **1 parasitic shadow(s) detected** — colored box-shadows (not near-black) found in allShadows. These likely originate from browser extensions or third-party injected widgets (e.g. Grammarly, chat overlays), not from the site's own design system. Discard them when building.

*✅ No critical extraction gaps detected — high-confidence reproduction expected.*

### Per-section confidence

| Section | Confidence | Reason |
|---------|------------|--------|
| §1 Visual Theme | High | Body bg extracted via getComputedStyle() |
| §2 Colors | High | 308 CSS vars (semantic naming requires ≥20 for high) |
| §3 Typography | High | 8 typography roles inferred |
| §4 Components | High | 5 component variants captured |
| §7 Motion | High | Keyframes + transitions |
| §8 Do's/Don'ts | High | 22 rules generated; design-decisions.json has evidence per rule |
| §9 Responsive | High | 4 breakpoints detected |
| §9b Photography | High | 23 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 (426KB total). When running `prism add`, fonts are saved to `extractions/deno.com/fonts/` and embedded as base64 in the output HTML.

**@font-face declarations to use:**
```css
@font-face {
  font-family: 'Moranga';
  /* src: url('/fonts/Moranga.woff2') format('woff2'); */
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Moranga';
  /* src: url('/fonts/Moranga.woff2') format('woff2'); */
  font-weight: bold;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Recursive';
  /* src: url('/fonts/Recursive.woff2') format('woff2'); */
  font-weight: 300 1000;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  /* src: url('/fonts/Inter.woff2') format('woff2'); */
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  /* src: url('/fonts/Inter.woff2') format('woff2'); */
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  /* src: url('/fonts/Inter.woff2') format('woff2'); */
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  /* src: url('/fonts/Inter.woff2') format('woff2'); */
  font-weight: 700;
  font-style: italic;
  font-display: swap;
}
```

### Keyframe Animations (Intercepted from CSS)

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

```
@keyframes fade_in { ... }
@keyframes sweep_in_from_right { ... }
@keyframes sweep_in_from_left { ... }
@keyframes parallax { ... }
@keyframes parallax_down { ... }
@keyframes parallax_left { ... }
@keyframes parallax_right { ... }
@keyframes translateX_full { ... }
@keyframes scaleX_full { ... }
@keyframes spin { ... }
@keyframes move { ... }
@keyframes buttonBorderSpin { ... }
@keyframes firstHalfBorderSpin { ... }
@keyframes secondHalfBorderSpin { ... }
@keyframes badgeBorderSpin { ... }
@keyframes fadeInSlideUp { ... }
@keyframes fadeIn { ... }
@keyframes infra-border-fade { ... }
@keyframes infra-desaturate { ... }
@keyframes infra-scale-y { ... }
@keyframes dino-peek { ... }
```

<details><summary>Full keyframes CSS (21 animations)</summary>

```css
@keyframes fade_in{0%{opacity:0}
@keyframes sweep_in_from_right{0%{opacity:0;transform:translate(16px)}}
@keyframes sweep_in_from_left{0%{opacity:0;transform:translate(-16px)}}
@keyframes parallax{0%{transform:translateY(120px)}
@keyframes parallax_down{0%{transform:translateY(-120px)}
@keyframes parallax_left{0%{transform:translate(-90px)}
@keyframes parallax_right{0%{transform:translate(90px)}
@keyframes translateX_full{0%{transform:translate(0%)}
@keyframes scaleX_full{0%{transform:scaleX(0%)}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes move{0%{transform:translate(-200px)}
@keyframes buttonBorderSpin{0%{--border-gradient-angle:0turn}
@keyframes firstHalfBorderSpin{0%{--border-gradient-angle:0turn}
@keyframes secondHalfBorderSpin{0%{--border-gradient-angle:.5turn}
@keyframes badgeBorderSpin{0%{--border-gradient-angle:0turn}
@keyframes fadeInSlideUp{0%{opacity:0;transform:translateY(1rem)}
@keyframes fadeIn{0%{opacity:0}
@keyframes infra-border-fade{0%{border-color:var(--color-deploy-neutral-700)}
@keyframes infra-desaturate{0%{filter:grayscale()}
@keyframes infra-scale-y{0%{transform:scaleY(0)}
@keyframes dino-peek{0%{transform:translateY(8rem)}
```
</details>

### 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: linear-gradient(45deg,transparent 25%,var(--stripe-color);

```

### Hover State CSS (Intercepted)

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

```css
.markdown-body h1:hover .anchor,.markdown-body h2:hover .anchor,.markdown-body h3:hover .anchor,.markdown-body h4:hover .anchor,.markdown-body h5:hover .anchor,.markdown-body h6:hover .anchor{text-decoration:none}

.markdown-body h1:hover .anchor .octicon-link,.markdown-body h2:hover .anchor .octicon-link,.markdown-body h3:hover .anchor .octicon-link,.markdown-body h4:hover .anchor .octicon-link,.markdown-body h5:hover .anchor .octicon-link,.markdown-body h6:hover .anchor .octicon-link{visibility:visible}
```

> **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 2375 rendered nodes** — not a sample. These are the values the page *actually paints*, weighted by how often they appear.

### Real Responsive Breakpoints
**4 breakpoints** read from the live `@media` rules (not guessed):
`440px` · `768px` · `1024px` · `1080px`

### Measured Design Scale
**Type scale by usage** (× = paint count): `16px`×926 · `13.6px`×860 · `12px`×177 · `14px`×154 · `18px`×134 · `44px`×49 · `20px`×23 · `72px`×22

**Radius scale** (× = paint count): `4px`×175 · `6px`×55 · `8px`×36 · `9997px`×22 · `9999px`×11 · `12px`×1

**Weights** (× = paint count): `400`×2188 · `700`×178 · `650`×8

**Layout gaps** (× = paint count): `16px`×70 · `128px`×22 · `8px`×8 · `32px`×5 · `12px`×5 · `normal 12px`×4 · `8px 16px`×2 · `64px`×2

**Elevation (real shadows)**:
```css
rgba(0, 0, 0, 0.1) 0px 10px 15px -3px, rgba(0, 0, 0, 0.1) 0px 4px 6px -4px
rgb(102, 194, 255) 2px 4px 0px 0px
rgba(0, 0, 0, 0.1) 0px 1px 3px 0px, rgba(0, 0, 0, 0.1) 0px 1px 2px -1px
rgb(0, 119, 204) 2px 4px 0px 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-weight:400 }
header { background-color:#ffffffe6 }
header { background-color:color-mix(in oklab,var(--color-white)90%,transparent) }
header { box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow) }
@media (min-width: 64rem) nav { gap:calc(var(--spacing)*6) }
@media (min-width: 80rem) nav { gap:calc(var(--spacing)*12) }
@media (min-width: 80rem) nav { font-size:var(--text-lg) }
h1 { font-size:var(--text-heading-2xl); font-weight:var(--tw-font-weight,var(--text-heading-2xl--font-weight)) }
h2 { gap:calc(var(--spacing)*2) }
h2 { font-size:var(--text-heading-lg); font-weight:var(--tw-font-weight,var(--text-heading-lg--font-weight)) }
a { background-color:var(--color-white) }
```

> 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://deno.com | 2026-06-11T06:08:53.027Z*
*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.*