--- version: alpha name: angular.dev description: "Light product system built on #ffffff with #151417 as the primary CTA accent. Type anchored in Inter Tight at 80px / weight 500. Extracted automatically from https://angular.dev/ — rendered styles via getComputedStyle() + CSS custom properties (token-only values may not be painted)." narrative: | angular.dev is built on a pure-white canvas (rgb(255,255,255)). The system uses rgb(21, 20, 23) as a near-neutral accent (low saturation). Crisp CTAs (4px radius) reinforce a precise, technical aesthetic alongside Inter Tight as the primary typeface. A restrained elevation system (3 distinct shadows) — shadows reserved for the few elements that must lift off the page. Motion is a first-class concern — 7 keyframe animations plus transition-driven interactions. colors: background: "#ffffff" surface-1: "#ffffff" surface-2: "#ffffff" ink: "#151417" ink-muted: "rgba(21, 20, 23, 0.65)" ink-subtle: "#413e46" primary: "#151417" on-primary: "#ffffff" primary-hover: "#f97583" hairline: "#24292e" primary-focus: "#101010" typography: display-xl: fontFamily: "Inter Tight, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif" fontSize: 80px fontWeight: 500 lineHeight: normal letterSpacing: 0 display-md: fontFamily: "Inter Tight, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif" fontSize: 16px fontWeight: 500 lineHeight: normal letterSpacing: 0 body: fontFamily: "Inter, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif" fontSize: 12.8px fontWeight: 500 lineHeight: normal letterSpacing: 0 caption: fontFamily: "Inter, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif" fontSize: 14.4px fontWeight: 500 lineHeight: normal letterSpacing: 0 button: fontFamily: "Inter, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif" fontSize: 14px fontWeight: 600 lineHeight: normal letterSpacing: 0 mono: fontFamily: "DM Mono, 'SF Mono', 'JetBrains Mono', Menlo, monospace" fontSize: 16px fontWeight: 400 lineHeight: normal letterSpacing: 0 rounded: none: 0px xs: 4px sm: 8px md: 16px lg: 20px xl: 32px pill: 9999px spacing: xxs: 2px xs: 2px sm: 8px md: 12px lg: 24px xl: 32px xxl: 50px components: button-dark--solid: backgroundColor: "{colors.primary}" textColor: "{colors.on-primary}" typography: "{typography.button}" rounded: "{rounded.xs}" padding: 8px button-outline: backgroundColor: "transparent" textColor: "#746e7c" typography: "{typography.body}" rounded: "{rounded.xs}" padding: 1px 6px button-ghost: backgroundColor: "transparent" textColor: "#746e7c" typography: "{typography.body}" rounded: "{rounded.none}" padding: 20px 6px input-text-input: backgroundColor: "{colors.on-primary}" textColor: "{colors.ink-subtle}" typography: "{typography.display-md}" rounded: "{rounded.none}" padding: 1px 2px navigation-main-nav: backgroundColor: "#000000" typography: "{typography.display-md}" rounded: "{rounded.none}" padding: 0px 0px 32px status-badge-neutral-light: backgroundColor: "#f6f5f6" textColor: "#f637e3" typography: "{typography.body}" rounded: "{rounded.sm}" padding: 8px tab-ghost-tab: backgroundColor: "transparent" textColor: "{colors.primary}" typography: "{typography.display-md}" rounded: "{rounded.sm}" tab-pill-tab: backgroundColor: "{colors.on-primary}" textColor: "{colors.primary}" typography: "{typography.display-md}" rounded: "{rounded.sm}" padding: 4px code-block-inline-code--pre: backgroundColor: "#000000" textColor: "#e90364" typography: "{typography.display-md}" rounded: "{rounded.xs}" padding: 0px 4.8px extracted_at: "2026-06-11T06:01:18.687Z" completeness: 80 scoreVersion: "v2" --- # Design System — angular.dev > Extracted automatically by Prism from https://angular.dev > 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**: expressive  |  **Weight**: medium  |  **Aesthetic**: product-neutral | Dimension | Value | Signal | |---|---|---| | Canvas | neutral | `#ffffff` | | Type posture | sans-led (Inter) | "ProductivityMeets scalability" | | Color assertion | dual-accent | #151417 | | Whitespace | moderate | section rhythm 48px | | Interaction | expressive | 7 keyframes, 19 transitions | | Radius language | 4px-rounded | from token scale | **Prism fingerprint**: `neutral-canvas · sans-display · dual-accent · 4px-rounded · expressive-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(21, 20, 23)` 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 **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. angular.dev uses a pure-white canvas (`#ffffff`), letting typography, color and imagery carry the visual weight. Headlines are set in **Inter Tight**, a sans-serif display face (the dominant type signature, e.g. "ProductivityMeets scalability" at 80px). A second display voice — **Inter** (sans) — appears in lower bands (e.g. "Signals: Fine-Grained Reactivity"), used for editorial accent. Body text is set in **Inter**. Body text reads in Primary Contrast (`#151417`) — softened from pure black, a small but deliberate detail that lowers reading friction. **Primary Contrast** (`#151417`) provides interactive distinction without visual aggression. Elevation comes from a small, deliberate set of shadows (3 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: DM Mono - Primary text: Primary Contrast (`#151417`) - Accent: Primary Contrast (`#151417`) - Display: 14px weight 500 - Shadow system: 3 distinct elevation levels - Custom fonts loaded: DM Mono, Inter, Inter Tight ## 2. Color Palette & Roles ### Background & Surface - **Pure White** (`#ffffff`): Page background (primary) - **Whitesmoke** (`#e1e4e8`): Surface / elevated background ### Text & Content - **Primary Contrast** (`#151417`): Primary body text - **Pure Black** (`#000000`): Secondary text - **Near-Black** (`#24292e`): Secondary text ### Accent & Interactive - **#f97583** (`#f97583`): Interactive / accent - **#b392f0** (`#b392f0`): Interactive / accent - **Baby Blue** (`#9ecbff`): Interactive / accent - **Baby Blue** (`#79b8ff`): Interactive / accent - **Tangerine** (`#ffab70`): Interactive / accent - **Mint** (`#85e89d`): Interactive / accent ### Full Extracted Palette **11 colors rendered on the page** + **2** more declared in design tokens (CSS custom properties — not necessarily painted). (11 categorized above + 2 additional below.) Rendered values are read via `getComputedStyle()`; token values come from CSS variable declarations. Third-party logo colors are filtered out. - `#6a737d` — Slate Gray - `#424242` — Charcoal *(token)* ### Gradients & Decorative Fills - `linear-gradient( 0deg, oklch(47.66% .246 305.88) 0%, color-mix(in srgb, oklch(53.18% .28 296.97), wh…` — (--purple-to-light-purple-vertical-gradient) - `linear-gradient( 0deg, oklch(51.01% .274 263.83) 0%, oklch(67.05% .1205924489987394 181.340259022038…` — (--blue-to-cyan-vertical-gradient) - `radial-gradient( circle at 60% bottom, oklch(59.91% .239 8.14) 20%, oklch(53.18% .28 296.97) 100% )` — (--hot-pink-to-electric-violet-radial-gradient) - `linear-gradient( 0deg, oklch(67.05% .1205924489987394 181.34025902203868) 0%, oklch(79.12% .257 155.…` — (--green-to-cyan-vertical-gradient) - `linear-gradient( 0deg, oklch(51.01% .274 263.83) 0%, color-mix(in srgb, oklch(51.01% .274 263.83), w…` — (--blue-to-teal-vertical-gradient) - `linear-gradient( 90deg, oklch(69.02% .277 332.77) 0%, oklch(53.18% .28 296.97) 100% )` — (--pink-to-purple-horizontal-gradient) - `linear-gradient( 90deg, oklch(59.91% .239 8.14) 11.42%, oklch(61.42% .238 15.34) 34.83%, oklch(69.02…` — (--red-to-pink-horizontal-gradient) - `linear-gradient( 0deg, oklch(53.18% .28 296.97) 0%, oklch(69.02% .277 332.77) 100% )` — (--pink-to-purple-vertical-gradient) ### CSS Custom Properties (Design Tokens) **Z-Index Token** - `--z-index-mini-menu`: `200` - `--z-index-nav-tutorial`: `75` - `--z-index-top-level-banner`: `150` - `--z-index-nav`: `100` **Spacing Token** - `--layout-padding`: `3.12rem` **Other tokens** - `--mat-button-toggle-legacy-disabled-state-text-color`: `color-mix(in srgb, rgba(0, 0, 0, .87) 38%, transparent)` - `--primary-nav-width`: `6.875rem` - `--mat-chip-label-text-color`: `oklch(36.98% .014 302.71deg)` - `--mat-snack-bar-container-color`: `white` - `--mat-tab-divider-color`: `transparent` - `--mat-button-toggle-legacy-state-layer-color`: `color-mix(in srgb, rgba(0, 0, 0, .87) 12%, transparent)` - `--mat-button-toggle-label-text-size`: `16px` - `--mat-chip-focus-outline-color`: `oklch(47.66% .246 305.88)` ## 3. Typography Rules ### Font Families - **Primary**: `Inter` - **Secondary**: `Inter Tight` - **Font 3**: `DM Mono` - **Font 4**: `Material Symbols Outlined` ### Custom Fonts Loaded - **DM Mono** weight 400 (italic) - **Inter** weight 400 (normal) - **Inter** weight 500 (normal) - **Inter** weight 600 (normal) - **Inter Tight** weight 500 (normal) - **Inter Tight** weight 600 (normal) - **Material Symbols Outlined** weight 400 (normal) ### Typography Hierarchy | Role | Font | Size | Weight | Line Height | Letter Spacing | Notes | |------|------|------|--------|-------------|----------------|-------| | Display Hero | Inter Tight | 80px | 500 | normal | normal | Main headline (h2) | | Sub-heading | Inter Tight | 16px | 500 | normal | normal | Third-level heading (h3) | | Card Title | Inter | 16px | 400 | normal | normal | Card headings | | Input Large | DM Mono | 16px | 400 | normal | normal | Form input (16px) | | Caption / Badge | Inter | 14.4px | 500 | normal | normal | small text (14.4px) | | Button | Inter | 14px | 600 | normal | normal | Button label (14px) | | Button | Inter | 14px | 500 | normal | normal | Button label (14px) | | Button | Inter | 13.3333px | 500 | normal | normal | Button label (13.3333px) | | Button | Inter | 13.3333px | 600 | normal | normal | Button label (13.3333px) | | Button | Inter | 12.8px | 500 | normal | normal | Button label (12.8px) | ### Full Font Size Scale Sizes detected in the design (descending): `80px`, `50.67px`, `24px`, `19.20px`, `17.60px`, `16px`, `14.40px`, `14px`, `13.33px`, `13px`, `12.80px`, `12px`, `11.20px` > 7 size(s) detected outside the sampled hierarchy (50.6667px, 24px, 19.2px, 17.6px, 13px, 12px, 11.2px). 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: "liga"; } ``` ## 4. Component Stylings ### Buttons **Dark / Solid** - Background: `#151417` `{colors.primary}` - Text: `#ffffff` `{colors.on-primary}` - Padding: 8px - Radius: 4px - Border: 1px solid oklch(0.6902 0.277 332.77) - Font: 14px weight 600 - Use: Solid dark CTA - Focus: outline: `rgb(16, 16, 16) auto 1px` **Outline** - Background: `transparent` - Text: `#746e7c` - Padding: 1px 6px - Radius: 4px - Border: 1px solid oklch(0.9175 0.004 301.42) - Font: 12.8px weight 500 - Use: Secondary action with border - Focus: outline: `rgb(16, 16, 16) auto 1px` **Ghost** - Background: `transparent` - Text: `#746e7c` - Padding: 20px 6px - Radius: 0px - Font: 13.3333px weight 500 - Use: Subtle action, toolbar, nav button - Focus: outline: `rgb(16, 16, 16) auto 1px` **Ghost** - Background: `transparent` - Text: `#000000` - Padding: 1px 16px - Radius: 0px - Font: 13.3333px weight 600 - Use: Subtle action, toolbar, nav button - Focus: outline: `rgb(16, 16, 16) auto 1px` **Light / Invert** - Background: `#ffffff` `{colors.on-primary}` - Text: `#0546ff` - Padding: 10px - Radius: 4px - Border: 1px solid oklch(0.9175 0.004 301.42) - Font: 16px weight 500 - Use: Bright CTA on dark sections - Focus: outline: `rgb(16, 16, 16) auto 1px` **Light / Invert** - Background: `#ffffff` `{colors.on-primary}` - Text: `#0546ff` - Padding: 32px - Radius: 8px - Border: 1px solid oklch(0.9175 0.004 301.42) - Font: 16px weight 500 - Use: Bright CTA on dark sections - Focus: outline: `rgb(16, 16, 16) auto 1px` ### Inputs & Forms **Text Input** - Background: `#ffffff` `{colors.on-primary}` - Text: `#413e46` `{colors.ink-subtle}` - Padding: 1px 2px - Radius: 0px - Border: 0px none oklch(0.3698 0.014 302.71) - Font: 16px weight 400 - Use: Text fields, search inputs ### Navigation **Main Nav** - Background: `#000000` - Padding: 0px 0px 32px - Radius: none - Font: 16px weight 400 - Use: Fixed/sticky flex nav — N/A items ### Status Badges **Neutral Light** - Background: `#f6f5f6` - Text: `#f637e3` - Padding: 8px - Radius: 8px - Font: 11.2px weight 500 - Use: Status indicator, label, pill ### Tabs **Ghost Tab** - Background: `transparent` - Text: `#151417` `{colors.primary}` - Padding: 0px - Radius: 8px - Font: 16px weight 400 - Use: Navigation tabs, filter tabs **Pill Tab** - Background: `#ffffff` `{colors.on-primary}` - Text: `#151417` `{colors.primary}` - Padding: 4px - Radius: 8px - Border: 1px solid oklch(0.8401 0.009 308.34) - Font: 16px weight 400 - Use: Navigation tabs, filter tabs ### Code Blocks **Inline Code / Pre** - Background: `#000000` - Text: `#e90364` - Padding: 0px 4.8px - Radius: 4px - Font: 17.6px weight 400 — "DM Mono" - Use: Code samples, CLI commands, syntax highlighting blocks ## 4b. Component Behaviors (State Matrix) ### Interaction State Narrative - **FooterLink**: - **hover:** text #746e7c → #706a78, border changes *State transitions extracted via Playwright simulation — exact values in the YAML matrix below.* ```yaml component-behaviors: button: default: bg: "oklch(0.1937 0.006 300.98)" fg: "rgb(255, 255, 255)" border: "1px solid oklch(0.6902 0.277 332.77)" focus: bg: "transparent" fg: "inherit" input: default: bg: "rgb(255, 255, 255)" fg: "oklch(0.3698 0.014 302.71)" link: default: bg: "rgba(0, 0, 0, 0)" fg: "oklch(0.5484 0.023 304.99)" card: default: bg: "rgba(0, 0, 0, 0)" fg: "oklch(0.1937 0.006 300.98)" navLink: default: bg: "rgba(0, 0, 0, 0)" fg: "oklch(0.5484 0.023 304.99)" tab: default: bg: "rgba(0, 0, 0, 0)" fg: "oklch(0.5318 0.28 296.97)" footerLink: default: bg: "rgba(0, 0, 0, 0)" fg: "oklch(0.5484 0.023 304.99)" hover: bg: "transparent" fg: "oklab(0.534804 0.0128018 -0.0183177)" ``` **Agent usage**: Validate generated components against this matrix. If your output's `:hover` state changes properties not listed here, you are off-brand. ## 4c. Component Vocabulary (Closed System) *This brand uses ONLY the following component vocabulary. Introducing new variants without justification breaks the system's tonal coherence.* ### Buttons - **4 shape(s)** in this system: `Dark / Solid`, `Outline`, `Ghost`, `Light / Invert` - **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 ### Status Badges - **1 shape(s)** in this system: `Neutral Light` - **DO NOT introduce new status badges variants** without justification ### Tabs - **2 shape(s)** in this system: `Ghost Tab`, `Pill Tab` - **DO NOT introduce new tabs 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 80ch ### Spacing System Compact spacing — information density prioritized | Token | Value | |-------|-------| | xxs | 2px | | xs | 2px | | sm | 8px | | md | 12px | | base | 16px | | lg | 24px | | xl | 32px | | 2xl | 48px | | 3xl | 50px | ### Border Radius Scale | Name | Value | Use | |------|-------|-----| | None | 0px | No rounding | | Xs | 4px | Tiny corners (badges, micro elements) | | Sm | 8px | Buttons, inputs, small elements | | Md | 16px | Cards, containers | | Lg | 20px | Large rounded elements, pill segments | | Xl | 32px | Category strips, featured containers | | Full | 9999px | Pills, avatars, circular elements | ### Shape Language | Component | Border Radius | |-----------|---------------| | Buttons | `4px` | | Inputs & Forms | `0px` | | Navigation | `none` | | Status Badges | `8px` | | Tabs | `8px` | | Code Blocks | `4px` | | Page Body | `0px` | | Primary Input | `0px` | **Shape Personality**: Moderate Rounding — Medium corners (4–12px). Modern SaaS standard, neither sharp nor pill. **Full Radius Spectrum**: 0px, 3px, 4px, 8px, 16px (from `allBorderRadii` scan) ## 5b. Spacing Rhythm Names **Measured section padding**: bands use ~50px internal vertical padding (up to 50px) — **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** | `50px` | 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** | `2px` | Icon-text gap, tag inner padding | **Agent rule**: NEVER hardcode raw pixel values for spacing in generated UI. Always reference these named tokens (`spacing-rhythm.section`, etc.). ## 5c. Widget & Structure Library Structural patterns extracted from the page DOM — these are the **blueprints** an agent should follow to reproduce the page architecture (not just CSS values). **4/8 structural patterns detected.** ### Hero Pattern - **Composition:** centered — Centered composition — heading + subheading + CTAs stacked vertically, content centered horizontally. Common for SaaS marketing pages. - **Viewport coverage:** 44px tall (not full-viewport) - **Heading:** "Angular v22 is here!" — 14px center-aligned - **CTAs:** none detected in hero (unusual — agent should verify) - **Clone instruction:** Reproduce the **centered** layout. Use the heading font-size token at the documented size. Pair the centered text with the hero’s decorative visual (gradient / SVG / hero image — see §9b), not bare text. ### Navigation Pattern - **Position:** static (scrolls with page) - **Layout:** logo-center-links-split — Logo centered, links split on either side - **Height:** 900px - **Logo:** ✓ present - **Nav links:** 4 primary items - **CTAs in nav:** 0 (no buttons — links only) - **Search:** ✓ search input visible in nav - **Theme toggle:** ✓ dark/light mode switcher present - **Clone instruction:** Build a static logo center links split navigation. Link-only — no button styling needed. ### Card Grid Pattern - **Card count:** 4 cards detected - **Columns (desktop):** 1-up grid - **Card dimensions:** 1328×746px (aspect 1.78:1) - **Gap:** 0px between cards - **Content:** ✗ no image + CTA - **Clone instruction:** Build a 1-column grid (desktop) with cards at ~1.78:1 aspect ratio. Text/icon-only cards (no photography). ### Footer Pattern - **Columns:** 1 - **Links:** 24 total - **Height:** 545px - **Includes:** ✗ no newsletter | ✓ social icons | ✓ copyright - **Clone instruction:** Build a 1-column footer with ~24 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) |
`rgb(27, 149, 224) 0px 0px 10px 0px`,
`rgb(27, 149, 224) 0px 0px 5px 0px` | Cards, elevated surfaces | | Inset (Level 2) |
`rgba(0, 0, 0, 0.2) 0px 1px 0px 0px`,
`oklch(0.9881 0 0) 0px 0px 0px 2px inset` | Buttons, pressed-state elements | | Layered (Level 3) |
`rgba(0, 0, 0, 0.1) 0px 0px 10px 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 ### Dominant Easing Curves | Curve | Semantic Name | |-------|---------------| | `ease` | CSS ease — Default | | `ease-out` | Ease Out — Decelerating | | `ease-in-out` | Ease In-Out — Symmetric | ### Duration Scale | Value | Tier | Typical Use | |-------|------|-------------| | `50ms` | Instant | State toggles, instant feedback | | `200ms` | Normal | Panel open/close, navigation | | `300ms` | Normal | Panel open/close, navigation | | `500ms` | Slow | Hero animations, page transitions | | `600ms` | Slow | Hero animations, page transitions | ### Copy-Paste Transition Snippets **Color / Background** ```css transition: color 0.3s, background-color 0.3s; ``` **Transform** ```css transition: transform 0.3s ease-out; ``` **Opacity** ```css transition: opacity 0.05s linear; ``` **Transform** ```css transition: transform 0.3s ease-out 0.6s; ``` ### Keyframe Animation Catalog | Animation Name | Type | Animated Props | Use Hint | |----------------|------|----------------|----------| | `spin-gradient` | Custom | --angle | Loading indicator | | `_ngcontent-ng-c3968259679_menuFadeIn` | Fade + Move | opacity, transform | Element entrance | | `_ngcontent-ng-c4082591351_rotateGradient` | Custom | --gradient-angle | Loading indicator | | `_ngcontent-ng-c4082591351_pulse` | Custom | --pulse-inner, --pulse-outer | Attention / status | | `_ngcontent-ng-c1693377263_fadeIn` | Fade | opacity, visibility | Element entrance | | `_ngcontent-ng-c3149880212_shimmer` | Custom | background-position-y, background-position-x | Loading placeholder | | `_ngcontent-ng-c4008248509_spinner-ani...` | Rotate / Spin | transform | Loading indicator | ### Motion Fingerprint - **Speed Character**: Deliberate & Calm (median duration: `300ms`) - **Dominant Easing**: custom cubic-bezier curves - **Animation Library**: 7 unique animations (7 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 Primary Contrast (`#151417`) for text — not pure black, it's warmer and more readable - Use Inter as the primary typeface — it defines the brand personality - Keep font weights between 400-600 — 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 Primary Contrast (`#151417`) as the primary accent — it's the brand's signature interactive color - Use small 4px radius for buttons — this design system uses subtle rounding, not pill shapes - Respect the 2px–32px spacing range — the design uses a wide scale for visual breathing room - Include a search input directly in the nav — discoverability is a primary UX value here - Include a theme toggle in the nav — dark mode is a first-class feature ### Don't - Don't use pure black (`#000000`) for text — the near-black adds warmth - Don't substitute with generic sans-serif or serif — the custom font carries the brand - Don't use weight 700 (bold) or above — 600 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 over-round buttons with pill or large radius — the system uses restrained, sharp-ish corners - 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 `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(21, 20, 23)` for primary CTAs and brand-mark signals only" why: "Single chromatic assertion device — overuse dilutes meaning" test: "querySelectorAll('[style*=\"rgb(21, 20, 23)\"]').length <= 3 per fold" ``` ## 9. Responsive Behavior ### Breakpoints | Name | Width | Key Changes | |------|-------|-------------| | Mobile Large | 700px | Expanded mobile layout | | Tablet | 775px | Multi-column grids begin | | Tablet | 900px | Multi-column grids begin | | Large Desktop | 1431px | Maximum content width | | Ultra-wide | 1801px | Maximum content width | ### Token Diff — Desktop vs Mobile | Element | Property | Desktop | Mobile | |---------|----------|---------|--------| | nav | height | `900px` | `844px` | | button | width | `161px` | `164px` | | card | width | `1296px` | `358px` | ### Collapsing Strategy - Navigation: horizontal links → hamburger menu on mobile - Cards: multi-column → stacked vertical on mobile - Footer: multi-column → stacked single column on mobile ### Touch Targets - Buttons: 8px padding - Navigation: adequate spacing between items - Interactive elements: minimum 44px touch target recommended ### Collapsing Narrative How the structural patterns adapt from desktop to mobile (extracted from both viewport extractions): *No major structural differences detected between desktop and mobile widgets. The same blueprints scale rather than collapse — verify by inspecting actual mobile render.* ## 7c. Visual Effects & Dynamic Behavior *The live/dynamic layer beyond static CSS — reproduce these, not flat substitutes. This is often what separates a faithful clone from a wireframe.* - **Mesh gradients** — 2 multi-stop organic color field(s) as background atmosphere. - **Clip-path shapes** — 2 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** (4) — animated custom properties. > **Motion fingerprint**: mesh gradients, non-rectangular shapes (2), CSS scroll-driven animations ## 9b. Visual Tone & Photography **Tone:** No imagery No detectable photographic content. The site composes entirely with typography, color blocks, and minimal vector graphics. Clone strategy: lean on type hierarchy + layout rhythm rather than visual media. **Canonical Brand Image (OG):** - https://angular.dev/assets/images/ng-image.jpg *This is the image shown when the site is shared on social media — represents the brand visual essence.* **Media Format Mix:** - *No detectable images.* **Decorative Patterns Detected:** - 2 multi-stop linear gradients (mesh-like, 3+ color stops) — the brand leans on rich color transitions for visual depth - 3 radial gradients — circular color blooms used for spotlight/glow effects - 1 background pattern (non-photo url() backgrounds) — textures/illustrations as backdrops - **Glassmorphism** detected (`backdrop-filter: blur`) — layered transparent surfaces with blur, modern OS-like aesthetic **Clone instruction for decorative work:** This is a gradient-rich design — invest in multi-stop CSS gradients (3+ color stops), not solid backgrounds. **Imagery Guidance for clones:** - Don't add stock imagery just to "fill space" — this site's clarity comes from typographic restraint. - Use generous whitespace, strong type hierarchy, and color blocks for visual rhythm. ## 10. Agent Prompt Guide ### Quick Reference - Background: Pure White (`#ffffff`) - Primary text: Primary Contrast (`#151417`) - Accent: Primary Contrast (`#151417`) - Border: Near-Black (`#24292e`) - Font: Inter - Body: 16px weight 400 ### Example Component Prompts - "Create a hero section on Pure White background (#ffffff). Headline at 14px Inter weight 500, line-height normal, color #151417." - "Create the primary CTA button: `#151417` background, `#ffffff` text, 4px border-radius, 8px padding, 600 weight, Inter font." - "Design a card on `transparent` background. Border: none. Radius: 0px. Shadow: none. Padding: 0px." - "Build navigation: relative on `#ffffff`. Inter 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 Inter, weight range 400–600. Never exceed 600 — heavier weights break the brand's tonal restraint. 3. **Accent**: Primary Contrast (`#151417`) is the sole interactive color. On hover → #f97583 (`#f97583`). Use CSS transitions, not opacity/brightness filters. 4. **Shape**: CTAs at `4px`, cards at `0px`. Apply border-radius from the extracted scale only — don't invent intermediate values. 5. **Spacing**: Use the `--ca-space-*` token scale (2px–32px). All padding, margin, and gap values are multiples from this scale — no magic numbers. 6. **Tokens**: Import from §11 CSS Export (`--ca-*` vars). Never hardcode hex values — always reference a token so theming remains consistent. ## 11. CSS Design Tokens Raw Export *Copy-paste ready `:root {}` block — all values extracted directly from the live site.* ```css /* Colors */ :root { --ca-on-primary: #ffffff; --ca-primary: #151417; --ca-ink-subtle: #413e46; --ca-primary-hover: #f97583; --ca-hairline: #24292e; --ca-primary-focus: #101010; } /* Typography */ :root { --ca-font-primary: "Inter Tight", system-ui, sans-serif; --ca-text-display: 80px; --ca-text-body: 12.8px; --ca-text-caption: 14.4px; --ca-text-button: 14px; --ca-text-mono: 16px; } /* Spacing & Radius */ :root { --ca-space-xxs: 2px; --ca-space-xs: 2px; --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: 50px; --ca-radius-none: 0px; --ca-radius-xs: 4px; --ca-radius-sm: 8px; --ca-radius-md: 16px; --ca-radius-lg: 20px; --ca-radius-xl: 32px; --ca-radius-full: 9999px; } ``` ## 13. Page Structure Skeleton *The actual layout the source site uses. Reproduce these sections in order to match the site structure.* ```yaml page-skeleton: - section: hero tag: adev-root height: 5540px width: full-bleed layout: flex-row justify=normal children: 5 - section: hero tag: section classes: ["logo-section"] height: 700px width: full-bleed layout: flex-column justify=normal children: 2 padding: "0px 0px 0px 112px" - section: feature-section tag: main classes: ["adev-home"] height: 4995px width: full-bleed layout: block children: 6 - section: feature-section tag: section classes: ["features-section"] height: 1023px width: full-bleed layout: block children: 2 vertical-padding: ~40px padding: "0px 0px 0px 112px" - section: feature-section tag: section classes: ["selling-points"] height: 398px width: full-bleed layout: block children: 2 padding: "0px 0px 0px 112px" - section: feature-section tag: section classes: ["performance-section"] height: 800px width: full-bleed layout: flex-row justify=center children: 1 padding: "0px 0px 0px 112px" - section: feature-section tag: div classes: ["wrapper"] height: 800px width: 800px layout: flex-row justify=center children: 2 - section: feature-section tag: section classes: ["explore-section"] height: 1436px width: full-bleed layout: block children: 2 padding: "0px 0px 0px 112px" - section: section tag: section classes: ["learn-more-bottom-section"] height: 500px width: full-bleed layout: flex-row justify=normal children: 2 padding: "0px 0px 0px 112px" - section: footer tag: footer height: 545px width: 1330px layout: block children: 1 vertical-padding: ~50px - section: footer tag: div classes: ["adev-footer-container"] height: 545px width: 990px layout: block children: 2 bg: "rgb(255, 255, 255)" vertical-padding: ~50px padding: "49.92px 16px 49.92px 49.92px" ``` **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: - "Productivity Meets scalability" - "Features that actually help you solve problems" - "Enabling you to build smarter and faster" - "Social Media" sub-headings: - "The framework for building scalable web apps with confidence" - "AI-forward resources and integrations to supercharge your development with AI" - "Opinionated & versatile, organized yet modular thanks to Angular components and dependency injection" - "Trusted by millions to build fast, reliable applications that scale with the size of your team" ctas: - "Skip to main content" - "v22" - "CtrlK" - "more_horiz" - "Learn more" - "Ok, Got it" - "Get Started" navigation: - "Docs" - "Tutorials" - "Playground" - "Reference" footer-links: - "Blog" - "MIT-style License" ``` **Agent rule**: reuse these exact strings when generating UI. Do NOT translate or rephrase — brand voice is preserved through the original wording. ## 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 ``` _Source pattern detected: padding `8px` · radius `4px` · weight `600`_ ### Generic Card ```html
``` _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** 3 · **cta** 2 · **product** 1 · **docs** 3 · **social** 7 · **footer** 15 · **other** 9 **Primary actions (conversion path):** - Primary call-to-action — "Get Started" (the conversion path) → `https://angular.dev/#learn-more` - Primary call-to-action — "New to Angular? Try our completely in browser tu" (the conversion path) → `https://angular.dev/tutorials/learn-angular` **Signals:** 5/40 links carry a featured image · device mockups detected: tablet ×2, laptop ×1 · dominant link roles: footer-link (24), inline-link (10), navigation (3). --- ## Extraction Completeness: 80/100 (B) | Category | Score | Max | Detail | |----------|-------|-----|--------| | Colors & Palette | 15 | 25 | 11 named colors | | Typography | 20 | 20 | 10 roles defined | | Components | 20 | 20 | 6 specs extracted | | Motion & Interaction | 12 | 15 | Keyframes | | CSS Custom Properties | 8 | 10 | 159 vars | | Responsive Breakpoints | 5 | 5 | 5 breakpoints | | Variable Fonts | 0 | 5 | None detected | ## 12. Known Gaps & Confidence Explicit list of what this extraction could NOT capture. Agents should not invent values for these — either skip the feature or use the documented baseline + heuristic fallback. | Category | What's missing | Fallback strategy | |----------|----------------|-------------------| | **Photography** | No photographic content detected on this page | Don't add stock imagery; clarity comes from type + color blocks | | **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 | 159 CSS vars (semantic naming requires ≥20 for high) | | §3 Typography | High | 10 typography roles inferred | | §4 Components | High | 6 component variants captured | | §7 Motion | High | Keyframes + transitions | | §8 Do's/Don'ts | High | 17 rules generated; design-decisions.json has evidence per rule | | §9 Responsive | High | 5 breakpoints detected | | §9b Photography | Low | 0 images, hero not detected | ## 11.1 CSS Implementation Guide (CSS Interception Engine v2.15+) *Ready-to-use CSS from Prism's CSS Interception Engine — intercepted directly from the site's CSS files (bypasses CORS). Copy-paste into your `