--- version: alpha name: x.ai description: "Light product system built on #ffffff with #f9f8f6 as the primary CTA accent. Type anchored in universalSansDisplay at 30px / weight 400. Extracted automatically from https://x.ai/ — rendered styles via getComputedStyle() + CSS custom properties (token-only values may not be painted)." narrative: | x.ai is built on a pure-white canvas (rgb(255, 255, 255)). The system uses rgb(249, 248, 246) as a near-neutral accent (low saturation). Fully-rounded CTAs (9999px) signal a friendly, tactile interaction model alongside universalSansDisplay as the primary typeface. UniversalSansDisplay is paired with universalSans Fallback for secondary roles. A layered elevation system (8 distinct shadows) building a clear front-to-back hierarchy. Motion is a first-class concern — 18 keyframe animations plus transition-driven interactions. colors: background: "#ffffff" surface-1: "rgba(255, 255, 255, 0.85)" surface-2: "#f9f8f6" ink: "#0a0a0a" ink-muted: "rgba(10, 10, 10, 0.65)" ink-subtle: "#0a0a0a" primary: "#f9f8f6" on-primary: "#111111" primary-hover: "#ff6308" hairline: "#d5d9e2" accent-glow: "#ffbd2e" semantic-error: "#e60000" semantic-success: "#d3fde5" semantic-warning: "#fdf5d3" semantic-info: "#d3e0fd" typography: display-xl: fontFamily: "universalSansDisplay, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif" fontSize: 60px fontWeight: 500 lineHeight: 1 letterSpacing: -1.5px display-md: fontFamily: "universalSans, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif" fontSize: 14px fontWeight: 500 lineHeight: 1.38 letterSpacing: -0.35px body: fontFamily: "universalSans, 'SF Pro Display', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif" fontSize: 16px fontWeight: 400 lineHeight: 1.5 letterSpacing: 0 rounded: none: 0px xs: 4px sm: 8px md: 12px lg: 16px xl: 9999px spacing: xxs: 2px xs: 8px sm: 12px md: 16px lg: 74px xl: 96px xxl: 148px components: button-icon-button: backgroundColor: "transparent" textColor: "{colors.surface-1}" typography: "{typography.body}" rounded: "{rounded.none}" padding: 0px 12px 0px 8px button-pill: backgroundColor: "transparent" textColor: "{colors.ink-subtle}" typography: "{typography.display-md}" rounded: "{rounded.xl}" padding: 8px 16px button-pill-2: backgroundColor: "transparent" textColor: "{colors.surface-1}" typography: "{typography.display-md}" rounded: "{rounded.xl}" padding: 8px 12px 8px 16px card-standard-card: backgroundColor: "{colors.primary}" typography: "{typography.body}" rounded: "{rounded.md}" extracted_at: "2026-06-11T05:03:07.995Z" completeness: 66 scoreVersion: "v2" --- # Design System — x.ai > Extracted automatically by Prism from https://x.ai > 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**: animated  |  **Weight**: medium  |  **Aesthetic**: soft-rounded | Dimension | Value | Signal | |---|---|---| | Canvas | neutral | `#ffffff` | | Type posture | sans-led (universalSans) | "Choose how to get started" | | Color assertion | dual-accent | #f9f8f6 | | Whitespace | sparse | section rhythm 144px | | Interaction | animated | 18 keyframes, 13 transitions | | Radius language | soft-pill | from token scale | **Prism fingerprint**: `neutral-canvas · sans-display · dual-accent · soft-pill · animated-motion` > **🤖 TL;DR for AI agents** (read this first — saves you scanning the full doc): > > - **Canvas**: `rgb(255, 255, 255)` is the page background. Every component composits against this. > - **Accent**: `rgb(249, 248, 246)` for primary CTAs ONLY. Never decorative. > - **Body type**: 16px (token: `typography.body`). Default for ALL text not in a heading role. > - **Section rhythm**: 144px between major bands. Card padding: 74px. > - **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 x.ai uses a pure-white canvas (`#ffffff`), letting typography, color and imagery carry the visual weight. Headlines are set in **universalSansDisplay**, a sans-serif display face (the dominant type signature, e.g. "Choose how to get started" at 30px). Body text is set in **universalSans**. Negative letter-spacing at display sizes (-1.5px at 60px) compresses headlines into engineered blocks, dense and precise. Body text reads in Pure Black (`#0a0a0a`) — softened from pure black, a small but deliberate detail that lowers reading friction. **Off-White** (`#f9f8f6`) provides interactive distinction without visual aggression. Elevation is built from multi-layer shadow stacks (8 distinct) — each combines several blurred layers at varying offsets to build a clear front-to-back hierarchy. Border radius varies from pill-shaped (fully rounded) to moderately rounded elements, creating visual rhythm. Motion design uses smooth easing curves for polished state transitions. **Key Characteristics:** - Background: Pure White (`#ffffff`) - Primary typeface: GeistMono - Primary text: Pure Black (`#0a0a0a`) - Accent: Off-White (`#f9f8f6`) - Display: 60px weight 500, letter-spacing -1.5px - Shadow system: 8 distinct elevation levels - Custom fonts loaded: GeistMono, universalSans, universalSans Fallback, universalSansDisplay, universalSansDisplay Fallback ## 2. Color Palette & Roles ### Background & Surface - **Pure White** (`#ffffff`): Page background (primary) - **#d5d9e2** (`#d5d9e2`): Surface / elevated background - **Off-White** (`#f9f8f6`): Surface / elevated background - **Light Gray** (`#f3eee7`): Surface / elevated background - **Light Gray** (`#f2ede5`): Surface / elevated background ### Text & Content - **Pure Black** (`#0a0a0a`): Primary body text - **Pure Black** (`#000000`): Secondary text - **Near-Black** (`#1f2228`): Secondary text - **Near-Black** (`#151515`): Secondary text - **Near-Black** (`#2a2825`): Secondary text ### Accent & Interactive - **Bright Orange** (`#ff6308`): Interactive / accent - **#ff5f57** (`#ff5f57`): Interactive / accent - **#febc2e** (`#febc2e`): Interactive / accent - **#28c840** (`#28c840`): Interactive / accent - **Sage** (`#93adff`): Interactive / accent - **Translucent #bc97ff (44%)** (`rgba(188, 151, 255, 0.443)`): Interactive / accent - **#29c6be** (`#29c6be`): Interactive / accent ### Border & Divider - **Silver** (`#d7d1c9`): Borders / dividers - **Whitesmoke** (`#e1e1e1`): Borders / dividers ### Full Extracted Palette **40 colors rendered on the page** + **8** more declared in design tokens (CSS custom properties — not necessarily painted). (19 categorized above + 29 additional below.) Rendered values are read via `getComputedStyle()`; token values come from CSS variable declarations. Third-party logo colors are filtered out. - `#7d8187` — Slate Grey - `#8d867e` — Medium Gray - `#59534d` — Slate - `#88a6ff` — #88a6ff - `#91c17a` — #91c17a - `#6c6c6c` — Slate Grey - `#9ece6a` — #9ece6a - `#202a16` — Warm Brown - `#f7768e` — #f7768e - `#32181c` — Warm Brown - `#b86858` — Terracotta - `#ffbd2e` — #ffbd2e - `#24292e` — Near-Black - `#d73a49` — Vermillion - `#e36209` — Bright Orange - `#032f62` — #032f62 - `#005cc5` — M Tricolor Blue - `#6f42c1` — Slate Blue - `#999999` — Grey - `#1a1a1a` — Near-Black - `#2e3033` — Charcoal - `#202020` — Near-Black *(token)* - `#5c5c5c` — Slate Grey *(token)* - `#a4cb92` — #a4cb92 *(token)* - `#cfb47c` — #cfb47c *(token)* - `#d59556` — #d59556 *(token)* - `#d7766c` — Warm Terracotta *(token)* - `#46954a` — Success Green *(token)* - `#cf222e` — Crimson *(token)* ### CSS Custom Properties (Design Tokens) **Shadow Token** - `--tw-ring-offset-shadow`: `0 0 #0000` - `--tw-ring-shadow`: `0 0 #0000` - `--tw-drop-shadow`: `` - `--tw-shadow`: `0 0 #0000` **Spacing Token** - `--tw-numeric-spacing`: `` - `--tw-border-spacing-x`: `0` - `--home-hero-pt-gap`: `2.25rem` - `--tw-border-spacing-y`: `0` **Border Radius Token** - `--radius`: `.5rem` **Other tokens** - `--accent`: `22 100% 51.6%` - `--color-ink`: `213 11% 16%` - `--color-nimbus`: `228 21.74% 95.49%` - `--color-breeze`: `214 48.9% 73.9%` - `--color-steel`: `216 4% 22%` - `--site-header-bg`: `hsl(0 0% 100% / .85)` - `--color-ivory`: `40 18% 97%` - `--color-codeblock`: `0 0% 7%` ## 3. Typography Rules ### Font Families - **Primary**: `universalSans` - **Secondary**: `universalSansDisplay` - **Font 3**: `GeistMono` - **Font 4**: `universalSans Fallback` - **Font 5**: `universalSansDisplay Fallback` ### Custom Fonts Loaded - **GeistMono** weight 100 900 (normal) - **universalSans** weight 400 (normal) - **universalSans** weight 550 (normal) - **universalSans Fallback** weight normal (normal) - **universalSansDisplay** weight 400 (normal) - **universalSansDisplay** weight 550 (normal) - **universalSansDisplay Fallback** weight normal (normal) ### Typography Hierarchy | Role | Font | Size | Weight | Line Height | Letter Spacing | Notes | |------|------|------|--------|-------------|----------------|-------| | Display Hero | universalSansDisplay | 60px | 500 | 1 | -1.5px | Main headline (h1) | | Card Title | universalSans | 16px | 400 | 1.5 | normal | Card headings | | Sub-heading | universalSans | 14px | 500 | 1.38 | -0.35px | Third-level heading (h3) | ### Full Font Size Scale Sizes detected in the design (descending): `72px`, `60px`, `48px`, `30px`, `24px`, `18px`, `16px`, `14px`, `13px`, `12px`, `11px`, `10.50px`, `10px` > 10 size(s) detected outside the sampled hierarchy (72px, 48px, 30px, 24px, 18px, 13px, 12px, 11px, 10.5px, 10px). These appear on elements not in the sampled set — likely additional display sizes, marketing-section overrides, or third-party-widget styles. ## 4. Component Stylings ### Buttons **Icon Button** - Background: `transparent` - Text: `#ffffff` `{colors.surface-1}` - Padding: 0px 12px 0px 8px - Radius: 0px 9999px 9999px 0px - Font: 16px weight 400 - Use: Toolbar/UI icons - Focus: outline: `rgba(0, 0, 0, 0) solid 2px` **Pill** - Background: `transparent` - Text: `#0a0a0a` `{colors.ink-subtle}` - Padding: 8px 16px - Radius: 9999px - Shadow: `rgba(10, 10, 10, 0.15) 0px 0px 0px 1px` - Font: 14px weight 500 - Use: Status pills, tags, chips - Focus: outline: `rgba(0, 0, 0, 0) solid 2px` **Pill** - Background: `transparent` - Text: `#ffffff` `{colors.surface-1}` - Padding: 8px 12px 8px 16px - Radius: 9999px 0px 0px 9999px - Font: 14px weight 500 - Use: Status pills, tags, chips - Focus: outline: `rgba(0, 0, 0, 0) solid 2px` **Light / Invert** - Background: `#f9f8f6` `{colors.primary}` - Text: `#0a0a0a` `{colors.ink-subtle}` - Padding: 0px - Radius: 16px - Border: 1px solid rgba(10, 10, 10, 0.06) - Font: 16px weight 400 - Use: Bright CTA on dark sections - Focus: outline: `rgba(0, 0, 0, 0) solid 2px` **Light / Invert** - Background: `#f9f8f6` `{colors.primary}` - Text: `#0a0a0a` `{colors.ink-subtle}` - Padding: 4px - Radius: 16px - Border: 1px solid rgba(10, 10, 10, 0.06) - Font: 16px weight 400 - Use: Bright CTA on dark sections - Focus: outline: `rgba(0, 0, 0, 0) solid 2px` ### Cards & Containers **Standard Card** - Background: `#f9f8f6` `{colors.primary}` - Padding: 0px - Radius: 12px - Shadow: `rgba(0, 0, 0, 0.1) 0px 20px 25px -5px, rgba(0, 0, 0, 0.1) 0px 8px 10px -6px` - Use: Content containers, listing items ## 4b. Component Behaviors (State Matrix) ### Interaction State Narrative *State transitions extracted via Playwright simulation — exact values in the YAML matrix below.* ```yaml component-behaviors: button: default: bg: "rgba(0, 0, 0, 0)" fg: "rgb(10, 10, 10)" shadow: "rgba(10, 10, 10, 0.15) 0px 0px 0px 1px" focus: bg: "transparent" fg: "inherit" link: default: bg: "rgba(0, 0, 0, 0)" fg: "rgb(10, 10, 10)" card: default: bg: "rgb(249, 248, 246)" fg: "rgb(10, 10, 10)" shadow: "rgba(0, 0, 0, 0.1) 0px 20px 25px -5px, rgba(0, 0, 0, 0.1) 0p" navLink: default: bg: "rgba(0, 0, 0, 0)" fg: "rgb(10, 10, 10)" footerLink: default: bg: "rgba(0, 0, 0, 0)" fg: "rgb(125, 129, 135)" ``` **Agent usage**: Validate generated components against this matrix. If your output's `:hover` state changes properties not listed here, you are off-brand. ## 4c. Component Vocabulary (Closed System) *This brand uses ONLY the following component vocabulary. Introducing new variants without justification breaks the system's tonal coherence.* ### Buttons - **3 shape(s)** in this system: `Icon Button`, `Pill`, `Light / Invert` - **DO NOT introduce new buttons variants** without justification ### Cards & Containers - **1 shape(s)** in this system: `Standard Card` - **DO NOT introduce new cards & containers variants** without justification ## 5. Layout Principles ### Layout Type **top-nav + content** ### Grid Single column, centered content ### Max Width 1200px ### Spacing System Generous spacing — editorial breathing room | Token | Value | |-------|-------| | xxs | 2px | | xs | 8px | | sm | 12px | | md | 16px | | base | 52px | | lg | 74px | | xl | 96px | | 2xl | 144px | | 3xl | 148px | ### Border Radius Scale | Name | Value | Use | |------|-------|-----| | None | 0px | No rounding | | Xs | 4px | Tiny corners (badges, micro elements) | | Sm | 8px | Buttons, inputs, small elements | | Md | 12px | Cards, containers | | Lg | 16px | Large rounded elements, pill segments | | Xl | 9999px | Category strips, featured containers | | Full | 9999px | Pills, avatars, circular elements | ### Shape Language | Component | Border Radius | |-----------|---------------| | Buttons | `0px 9999px 9999px 0px` | | Cards & Containers | `12px` | | Page Body | `0px` | | Navigation | `0px` | **Shape Personality**: Moderate Rounding — Medium corners (4–12px). Modern SaaS standard, neither sharp nor pill. **Full Radius Spectrum**: 0px, 3px, 4px, 6px, 8px, 12px, 16px, full/pill (from `allBorderRadii` scan) ## 5b. Spacing Rhythm Names **Measured section padding**: bands use ~96px 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** | `148px` | Top/bottom of full-bleed hero sections | | **section** | `96px` | Between major bands (color change, content shift) | | **subsection** | `74px` | Within a section, between content groups | | **card** | `16px` | Card padding, list-item spacing | | **compact** | `12px` | Form fields, tight clusters, badge padding | | **micro** | `8px` | Icon-text gap, tag inner padding | **Agent rule**: NEVER hardcode raw pixel values for spacing in generated UI. Always reference these named tokens (`spacing-rhythm.section`, etc.). ## 5c. Widget & Structure Library Structural patterns extracted from the page DOM — these are the **blueprints** an agent should follow to reproduce the page architecture (not just CSS values). **4/8 structural patterns detected.** ### Hero Pattern - **Composition:** split-right-text — Split layout, media-left/text-right — image in left column, heading + body in right column. Less common variant. - **Viewport coverage:** full-viewport hero (≥70% screen height) - **Heading:** "Frontier AI models for everything you imagineimagine." — 60px center-aligned - **Subheading:** "Reasoning, code, voice, images, and video. Trained on the world's largest supercluster." - **Media:** present, positioned left - **CTAs:** 7 (primary: "NewGrok Build Beta") - **Clone instruction:** Reproduce the **split-right-text** layout. Use the heading font-size token at the documented size. Place media left of text. ### Navigation Pattern - **Position:** static (scrolls with page) - **Layout:** logo-left-links-left — Logo and links both on the left (CTAs typically right) - **Height:** 64px - **Logo:** ✓ present - **Nav links:** 17 primary items - **CTAs in nav:** 0 (no buttons — links only) - **Clone instruction:** Build a static logo left links left navigation. Link-only — no button styling needed. ### Card Grid Pattern - **Card count:** 4 cards detected - **Columns (desktop):** 2-up grid - **Card dimensions:** 610×280px (aspect 2.18:1) - **Gap:** 12px between cards - **Content:** ✗ no image - **Clone instruction:** Build a 2-column grid (desktop) with cards at ~2.18:1 aspect ratio. Text/icon-only cards (no photography). ### Footer Pattern - **Columns:** 1 - **Links:** 46 total - **Height:** 439px - **Includes:** ✗ no newsletter | ✓ social icons | ✓ copyright - **Clone instruction:** Build a 1-column footer with ~46 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) |
`rgba(10, 10, 10, 0.15) 0px 0px 0px 1px` | Cards, elevated surfaces | | Layered (Level 2) |
`rgba(0, 0, 0, 0.1) 0px 20px 25px -5px`,
`rgba(0, 0, 0, 0.1) 0px 8px 10px -6px` | Cards, elevated surfaces | | Inset (Level 3) |
`rgba(255, 255, 255, 0.03) 0px 1px 0px 0px inset` | Buttons, pressed-state elements | | Layered (Level 4) |
`rgba(0, 0, 0, 0.06) 0px 0px 0px 1px`,
`rgba(15, 23, 42, 0.18) 0px 18px 40px -24px` | Cards, elevated surfaces | **Shadow Philosophy**: Multi-layered shadow system creating natural, atmospheric depth. Each shadow level combines multiple layers for realistic elevation. ## 7. Motion & Interaction ### Dominant Easing Curves | Curve | Semantic Name | |-------|---------------| | `cubic-bezier(0.4,0,0.2,1)` | Material Standard — Balanced | | `cubic-bezier(0,0,0.2,1)` | Material Decelerate — Entrance | | `cubic-bezier(0.23,1,0.32,1)` | Quint Out — Strong Ease | ### Duration Scale | Value | Tier | Typical Use | |-------|------|-------------| | `90ms` | Fast | Hover states, micro-interactions | | `120ms` | Fast | Hover states, micro-interactions | | `150ms` | Fast | Hover states, micro-interactions | | `200ms` | Normal | Panel open/close, navigation | | `300ms` | Normal | Panel open/close, navigation | | `500ms` | Slow | Hero animations, page transitions | | `700ms` | Cinematic | Splash, marketing reveals | ### Copy-Paste Transition Snippets **Color / Background** ```css transition: color 0.15s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.15s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.15s cub...; ``` **Opacity** ```css transition: opacity 0.12s, transform 0.12s; ``` **Opacity** ```css transition: opacity 0.15s; ``` **Opacity** ```css transition: opacity 0.15s cubic-bezier(0.4, 0, 0.2, 1); ``` ### Keyframe Animation Catalog | Animation Name | Type | Animated Props | Use Hint | |----------------|------|----------------|----------| | `marquee` | Slide | transform | UI transition | | `pulse` | Fade | opacity | Attention / status | | `slideUpAndOut` | Slide | transform | Panel / drawer enter | | `spin` | Rotate / Spin | transform | Loading indicator | | `waveform` | Custom | height | UI transition | | `fadeIn` | Fade | opacity | Element entrance | | `tooltip-in` | Fade + Move | opacity, transform | UI transition | | `tooltip-out` | Fade + Move | opacity, transform | UI transition | | `border-beam` | Custom | --angle | UI transition | | `context-menu-in` | Fade + Move | opacity, transform | UI transition | | `context-menu-out` | Fade + Move | opacity, transform | UI transition | | `hero-shimmer` | Custom | background-position-x, background-position-y | Loading placeholder | | `border-shimmer` | Custom | background-position-x, background-position-y | Loading placeholder | | `swipe-out` | Fade + Move | transform, opacity | Swipe gesture dismiss | | `sonner-fade-in` | Fade + Move | opacity, transform | Element entrance | | `sonner-fade-out` | Fade + Move | opacity, transform | Element exit | | `sonner-spin` | Fade | opacity | Loading indicator | | `gridShimmerH` | Slide | transform | Loading placeholder | ### Motion Fingerprint - **Speed Character**: Balanced Pacing (median duration: `200ms`) - **Dominant Easing**: custom cubic-bezier curves - **Animation Library**: 18 unique animations (18 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 Pure Black (`#0a0a0a`) for text — not pure black, it's warmer and more readable - Use universalSans as the primary typeface — it defines the brand personality - Keep font weights between 400-500 — the system uses a narrow weight range for subtle hierarchy - Use negative letter-spacing (-1.5px) 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 Off-White (`#f9f8f6`) as the primary accent — it's the brand's signature interactive color - Use pill-shaped radius (9999px) for primary CTA buttons — the brand uses fully-rounded, pill CTAs - Use 12px border-radius on cards — consistent with the grid card corners - Maintain nav height at 64px — consistent vertical space for the navigation bar - Respect the 8px–96px spacing range — the design uses a wide scale for visual breathing room - Make the hero full-viewport (≥70% screen height) — this design uses an immersive hero, not a tall navbar - Build the hero as a split layout with media on the right — text and visual share equal weight - Include exactly 7 CTAs in the hero (primary + secondary) — this design pattern is multi-action, not single-purpose ### 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 — 500 is the maximum weight in this system - 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 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 `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(249, 248, 246)` for primary CTAs and brand-mark signals only" why: "Single chromatic assertion device — overuse dilutes meaning" test: "querySelectorAll('[style*=\"rgb(249, 248, 246)\"]').length <= 3 per fold" ``` ## 9. Responsive Behavior ### Breakpoints | Name | Width | Key Changes | |------|-------|-------------| | Mobile | 360px | Single column, compact spacing | | Mobile Large | 600px | Expanded mobile layout | | Mobile Large | 640px | Expanded mobile layout | | Tablet | 768px | Multi-column grids begin | | Tablet | 1000px | Multi-column grids begin | | Desktop | 1280px | Full feature layout | ### Token Diff — Desktop vs Mobile | Element | Property | Desktop | Mobile | |---------|----------|---------|--------| | heading | font-size | `60px` | `36px` | | heading | line-height | `60px` | `37.8px` | | heading | letter-spacing | `-1.5px` | `-0.9px` | | nav | height | `64px` | `80px` | | button | width | `36px` | `auto` | | card | width | `147px` | `auto` | ### Collapsing Strategy - Headlines: 60px → 36px on mobile - 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: 0px 12px 0px 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): - **Hero collapses split-right-text → centered** — the side-by-side layout stacks vertically, with media moving above the text. - **Hero CTAs:** 7 on desktop → 3 on mobile (secondary CTAs dropped on small screens). - **Navigation collapses to hamburger** — 17 links visible on desktop, 0 on mobile (the rest hide behind a menu toggle). - **Card grid: 2-up → 1-up** — cards stack as viewport narrows, becoming a vertical list on mobile. ## 7c. Visual Effects & Dynamic Behavior *The live/dynamic layer beyond static CSS — reproduce these, not flat substitutes. This is often what separates a faithful clone from a wireframe.* - **Canvas / 2D rendering** — animated/interactive canvas (charts, graphs, particle fields). Reproduce as live data-viz (e.g. an animated SVG/Canvas line chart), NOT a static image. - **WebGL** — GPU 3D/shader graphics (hero atmosphere is rendered, not a flat gradient). - **Glassmorphism** — 5 frosted/blur layer(s) (e.g. `blur(12px)`). - **Mesh gradients** — 1 multi-stop organic color field(s) as background atmosphere. - **Clip-path shapes** — 1 non-rectangular cut(s). - **CSS-variable animations** (3) — animated custom properties. > **Motion fingerprint**: WebGL/3D canvas, glassmorphism (10 layers), mesh gradients, non-rectangular shapes (1) ## 9b. Visual Tone & Photography **Tone:** Mixed photography + illustration A balanced mix of photographic content and vector graphics. Photos likely carry product/lifestyle context while SVG handles icons, logos, and decorative accents. **Canonical Brand Image (OG):** - https://x.ai/opengraph-image-1j7jya.png?opengraph-image.12t~.8y.z80vm.png?dpl=af3c5006b662067c66553cd83a848185fa1c4bc5 (1200×630px) *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: 1.48:1 (landscape) - Rendered size: 399×270px - *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): 7 (100%) - Portrait (<0.87): 0 (0%) - Square (0.87–1.15): 0 (0%) **Media Format Mix:** - SVG: 1 (icons, illustrations, decorative geometry) **Average rendered image size:** 280×164px **Above-fold image count:** 2 / 7 **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 - 1 large decorative SVG shape (≥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:** - Mix photography and illustration intentionally: photos for product/context, vectors for icons + decorative accents. - Respect the format split — replacing JPGs with illustrations (or vice versa) will shift the brand tone. ## 10. Agent Prompt Guide ### Quick Reference - Background: Pure White (`#ffffff`) - Primary text: Pure Black (`#0a0a0a`) - Accent: Off-White (`#f9f8f6`) - Border: #d5d9e2 (`#d5d9e2`) - Font: universalSans - Body: 16px weight 400 ### Example Component Prompts - "Create a hero section on Pure White background (#ffffff). Headline at 60px universalSans weight 500, line-height 1, letter-spacing -1.5px, color #0a0a0a." - "Create the primary CTA button: `#f9f8f6` background, `#ffffff` text, 0px 9999px 9999px 0px border-radius, 0px 12px 0px 8px padding, 500 weight, universalSans font." - "Design a card on `#f9f8f6` background. Border: none. Radius: 12px. Shadow: use extracted shadow. Padding: 0px." - "Build navigation: static on `#ffffff`. universalSans 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 universalSans, weight range 400–500. Never exceed 500 — heavier weights break the brand's tonal restraint. 3. **Accent**: Off-White (`#f9f8f6`) is the sole interactive color. On hover → Bright Orange (`#ff6308`). Use CSS transitions, not opacity/brightness filters. 4. **Motion**: All transitions use `cubic-bezier(0.4,0,0.2,1)`. Never use linear for UI transitions — preserve the brand's easing personality. 5. **Shape**: CTAs at `9999px`, cards at `12px`. Apply border-radius from the extracted scale only — don't invent intermediate values. 6. **Spacing**: Use the `--ca-space-*` token scale (8px–96px). All padding, margin, and gap values are multiples from this scale — no magic numbers. 7. **Tokens**: Import from §11 CSS Export (`--ca-*` vars). Never hardcode hex values — always reference a token so theming remains consistent. ## 11. CSS Design Tokens Raw Export *Copy-paste ready `:root {}` block — all values extracted directly from the live site.* ```css /* Colors */ :root { --ca-surface-1: #ffffff; --ca-primary: #f9f8f6; --ca-ink-subtle: #0a0a0a; --ca-on-primary: #111111; --ca-primary-hover: #ff6308; --ca-hairline: #d5d9e2; --ca-accent-glow: #ffbd2e; --ca-semantic-error: #e60000; --ca-semantic-success: #d3fde5; --ca-semantic-warning: #fdf5d3; --ca-semantic-info: #d3e0fd; } /* Typography */ :root { --ca-font-primary: "universalSansDisplay", system-ui, sans-serif; --ca-text-display: 60px; --ca-text-body: 16px; } /* Spacing & Radius */ :root { --ca-space-xxs: 2px; --ca-space-xs: 8px; --ca-space-sm: 12px; --ca-space-md: 16px; --ca-space-base: 52px; --ca-space-lg: 74px; --ca-space-xl: 96px; --ca-space-2xl: 144px; --ca-space-3xl: 148px; --ca-radius-none: 0px; --ca-radius-xs: 4px; --ca-radius-sm: 8px; --ca-radius-md: 12px; --ca-radius-lg: 16px; --ca-radius-xl: 9999px; --ca-radius-full: 9999px; } ``` ## 13. Page Structure Skeleton *The actual layout the source site uses. Reproduce these sections in order to match the site structure.* ```yaml page-skeleton: - section: hero tag: div classes: ["home-hero-pt", "relative"] height: 1211px width: full-bleed layout: block children: 1 vertical-padding: ~74px (generous) padding: "148px 0px 0px" - section: feature-section tag: section height: 661px width: full-bleed layout: block children: 1 vertical-padding: ~96px (airy) contains: chart/canvas (reproduce as live data-viz, not a flat image) - section: section tag: section classes: ["relative", "overflow-hidden"] height: 432px width: full-bleed layout: block children: 4 vertical-padding: ~144px (airy) - section: testimonials tag: section height: 494px width: full-bleed layout: block children: 1 vertical-padding: ~96px (airy) - section: feature-section tag: section height: 682px width: full-bleed layout: block children: 1 vertical-padding: ~96px (airy) - section: footer tag: footer height: 439px width: full-bleed layout: block children: 1 vertical-padding: ~52px ``` **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: - "One API. Every modality." - "Latest news" sub-headings: - "Bringing real-time market sentiment to Tori, from eToro" - "Powering Gopuff's Go agent" - "Build on your own" ctas: - "Contact Sales" - "Try for free" - "Get API Access" - "View Documentation" - "Imagine Explore →" - "Get API Key" - "Copy" - "Python" navigation: - "Products" - "Solutions" - "Developer" - "Company" - "Grok" - "Business" - "Government" - "iOS" - "Android" - "Grok on X" footer-links: - "Built with Grok" - "Chat" ``` **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: ``` **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 ``` _Source pattern detected: padding `8px 16px` · radius `9999px` · weight `500`_ ### Generic Card ```html
``` _Source pattern detected: padding `0px` · radius `12px` · shadow `rgba(0, 0, 0, 0.1) 0px 20px 25px -5px, rgba(0, 0, 0, 0.1) 0p`_ **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** 11 · **cta** 1 · **product** 4 · **pricing** 1 · **docs** 11 · **blog** 6 · **social** 2 · **legal** 3 · **footer** 14 · **other** 7 **Primary actions (conversion path):** - Primary call-to-action — "Try for free" (the conversion path) → `https://grok.com/?referrer=website` **Projects / case studies detected** (clustered by URL + featured image): *News* — medium confidence, 4 items: | Title | Featured image | Link | |---|---|---| | Jun 10, 2026 Bringing real-time market senti | `image?url=%2Fimages%2Fnews%2Fetoro-s` (ar 1.9) | https://x.ai/news/grok-etoro | | Jun 9, 2026 Powering Gopuff's Go agent | `image?url=%2Fimages%2Fnews%2Fgrok-go` (ar 1.9) | https://x.ai/news/grok-gopuff | | Jun 3, 2026 Grok Imagine 1.5 Preview | `image?url=%2Fimages%2Fnews%2Fgrok-im` (ar 1.9) | https://x.ai/news/grok-imagine-1-5 | | Jun 3, 2026 Grok Becomes the Voice of Vapi | `image?url=%2Fimages%2Fnews%2Fxai-vap` (ar 1.9) | https://x.ai/news/grok-vapi | *Grok* — medium confidence, 3 items: | Title | Featured image | Link | |---|---|---| | Business | — | https://x.ai/grok/business | | Government | — | https://x.ai/grok/government | | Use Cases | — | https://x.ai/grok/use-cases | *Api* — medium confidence, 2 items: | Title | Featured image | Link | |---|---|---| | Imagine Explore → | `image?url=%2Fimages%2Fimagine-demo%2` (ar 1.48) | https://x.ai/api/imagine | | Voice Explore → | — | https://x.ai/api/voice | **Signals:** 27/60 links carry a featured image · device mockups detected: laptop ×2 · dominant link roles: footer-link (26), content-card (15), navigation (11). --- ## Extraction Completeness: 66/100 (C) | Category | Score | Max | Detail | |----------|-------|-----|--------| | Colors & Palette | 25 | 25 | 19 named colors | | Typography | 8 | 20 | 3 roles defined | | Components | 8 | 20 | 2 specs extracted | | Motion & Interaction | 12 | 15 | Keyframes | | CSS Custom Properties | 9 | 10 | 170 vars | | Responsive Breakpoints | 5 | 5 | 6 breakpoints | | Variable Fonts | 0 | 5 | None detected | ## 12. Known Gaps & Confidence Explicit list of what this extraction could NOT capture. Agents should not invent values for these — either skip the feature or use the documented baseline + heuristic fallback. *Auto-detected extraction limitations — understand before building:* - **Licensed web fonts (GeistMono, universalSans, universalSansDisplay)** — detected but not downloaded. Substitute with your licensed copy or a close fallback (see Typography section for metrics). - **Sparse component extraction** — fewer than 5 component types detected. Highly dynamic sections (modals, datepickers, carousels) require interaction to render and are not captured in a static pass. - **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. | Category | What's missing | Fallback strategy | |----------|----------------|-------------------| | **Form inputs** | No text input fields detected on this page | Use the documented border-radius + accent border on focus; 12-16px padding inside | ### Per-section confidence | Section | Confidence | Reason | |---------|------------|--------| | §1 Visual Theme | High | Body bg extracted via getComputedStyle() | | §2 Colors | High | 170 CSS vars (semantic naming requires ≥20 for high) | | §3 Typography | Medium | 3 typography roles inferred | | §4 Components | Low | 2 component variants captured | | §7 Motion | High | Keyframes + transitions | | §8 Do's/Don'ts | High | 25 rules generated; design-decisions.json has evidence per rule | | §9 Responsive | High | 6 breakpoints detected | | §9b Photography | High | 7 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 `