# Instant branching intro statement — Section Design Reference

Schema: Design Details SECTION.md v3.2
Source: https://neon.com/
Website: Neon
Section ID: 4d9e2f58-bab4-4378-8c2c-27c1b52ec1bd
Design Details page: https://designdetails.io/sections/neon-com--home--features-4d9e2f58
Status: deterministic evidence captured; editorial AI review pending

## Purpose

This is a features section on the Home page. Use the attached crop and measured browser facts to reconstruct its composition. Do not infer unmeasured source values.

## Layout

captured layout

## Visual signature

corporate, typographic, minimal, cyberpunk-tech, developer-centric treatment at 1440×337px. The crop spans 3912–4249px of a 9329px page.

## Components

- Navigation Bar
- Hero
- Feature Card
- Feature Collection
- Testimonial Card
- Logo Strip
- Primary Button
- Outline Button
- Footer
- Tabs
- Product UI
- Interactive Diagram
- Code Snippet Block
- Sticky Sidebar Navigation

## Evidence note

The geometry, typography, colors, media, and animation parameters below come from saved HTML/CSS/browser evidence when present. Website-level roles are supplied separately. Editorial section judgment remains pending unless the MCP resolves this source ID to a promoted canonical record.

## Build blueprint v3.2

### Purpose and classification

- Canonical type: features
- Source type: features
- Structure: captured layout
- Layout: captured layout
- Styles: corporate, typographic, minimal, cyberpunk-tech, developer-centric
- Components: Navigation Bar, Hero, Feature Card, Feature Collection, Testimonial Card, Logo Strip, Primary Button, Outline Button, Footer, Tabs, Product UI, Interactive Diagram, Code Snippet Block, Sticky Sidebar Navigation
- Purpose: features section from the Home page of Neon.
- Visual signature: Captured visual surface with captured layout. Inspect the crop for image and content hierarchy.
- Place on the page: 7 of 13, after Product UI (`neon-com:C03`), before Feature collection (`neon-com:C04`)

### Crop and composition

- Crop: 1440×337px; aspect ratio 4.273:1
- Page bounds: 3912–4249px of 9329px
- Guidance: Preserve the documented hierarchy and relationships; exact measurements were not deterministically captured.

### Exact typography evidence

The sectionScale values were measured inside this crop. The siteRoles values explain how those faces function across the source website; they must not replace section measurements.

```json
{
  "sectionScale": [],
  "siteRoles": [
    {
      "role": "display",
      "size": "56px",
      "family": "Inter",
      "source": "computed",
      "traits": "Regular",
      "weight": "400",
      "evidence": "font-7: computed CSS at 1440×1000; AI role: Large 56px Inter used for the main hero heading 'The backend for apps...'.",
      "sampleId": "font-7",
      "confidence": 0.95,
      "lineHeight": "63px",
      "letterSpacing": "-2.2px"
    },
    {
      "role": "heading",
      "size": "52px",
      "family": "Inter",
      "source": "computed",
      "traits": "Regular",
      "weight": "400",
      "evidence": "font-5: computed CSS at 1440×1000; AI role: 52px Inter used for prominent section headings like 'The way we build software is changing...'.",
      "sampleId": "font-5",
      "confidence": 0.9,
      "lineHeight": "58.5px",
      "letterSpacing": "-2.1px"
    },
    {
      "role": "body",
      "size": "18px",
      "family": "Inter",
      "source": "computed",
      "traits": "Regular",
      "weight": "400",
      "evidence": "font-16: computed CSS at 1440×1000; AI role: 18px Inter used for descriptive body copy detailing features like autoscaling.",
      "sampleId": "font-16",
      "confidence": 0.85,
      "lineHeight": "27px",
      "letterSpacing": "-0.4px"
    },
    {
      "role": "mono",
      "size": "52px",
      "family": "GeistMono",
      "source": "computed",
      "traits": "Regular",
      "weight": "400",
      "evidence": "font-25: computed CSS at 1440×1000; AI role: 52px GeistMono used for stylized, technical headings like 'WHERE STARTUPS START'.",
      "sampleId": "font-25",
      "confidence": 0.9,
      "lineHeight": "63px",
      "letterSpacing": "normal"
    }
  ]
}
```

### Exact color evidence

The section samples record where each computed value was used. Functional roles come from the website-level classifier and remain separate.

```json
{
  "sectionUsage": [],
  "functionalPalette": [
    {
      "hex": "#000000",
      "name": "canvas",
      "role": "canvas",
      "source": "computed",
      "evidence": "color-1: computed rgb(0, 0, 0); AI role: rgb(0, 0, 0) used extensively as the main background for the page.",
      "sampleId": "color-1",
      "confidence": 0.95
    },
    {
      "hex": "#FFFFFF",
      "name": "text",
      "role": "text",
      "source": "computed",
      "evidence": "color-4: computed rgb(255, 255, 255); AI role: rgb(255, 255, 255) used for main body text and headings against dark backgrounds.",
      "sampleId": "color-4",
      "confidence": 0.95
    },
    {
      "hex": "#34D59A",
      "name": "primary action",
      "role": "primary-action",
      "source": "computed",
      "evidence": "color-23: computed rgb(52, 213, 154); AI role: rgb(52, 213, 154) (and similar greens like color-35) used for key actionable elements and glowing visual accents.",
      "sampleId": "color-23",
      "confidence": 0.9
    },
    {
      "hex": "#94979E",
      "name": "muted text",
      "role": "muted-text",
      "source": "computed",
      "evidence": "color-7: computed rgb(148, 151, 158); AI role: rgb(148, 151, 158) used for secondary text, descriptions, and labels.",
      "sampleId": "color-7",
      "confidence": 0.85
    },
    {
      "hex": "#E4F1EB",
      "name": "surface",
      "role": "surface",
      "source": "computed",
      "evidence": "color-2: computed rgb(228, 241, 235); AI role: rgb(228, 241, 235) used as a background color for specific sections (e.g., autoscaling) to contrast with the dark canvas.",
      "sampleId": "color-2",
      "confidence": 0.8
    },
    {
      "hex": "#303236",
      "name": "border",
      "role": "border",
      "source": "computed",
      "evidence": "color-12: computed rgb(48, 50, 54); AI role: rgb(48, 50, 54) used for borders around elements like the 'Read the docs' button.",
      "sampleId": "color-12",
      "confidence": 0.8
    }
  ]
}
```

### Design tokens

```json
{
  "radius": "Buttons appear pill-shaped (fully rounded), while cards and code blocks have smaller, subtle border radii (e.g., 4px-8px).",
  "density": "Variable density: Minimal in transition areas and hero sections, but highly dense in areas containing technical diagrams, charts, and code snippets.",
  "evidence": "Observed via the layout structure, button shapes (e.g., 'Get started', 'Read the docs'), and the spacing around the autoscaling/branching diagrams.",
  "borderStyle": "Subtle, dark grey borders (e.g., color-12) used to define cards and UI panels against the black background without overwhelming the visual.",
  "buttonStyle": "Solid white primary buttons for general actions, vibrant green solid buttons for technical actions ('npx neon init'), and pill-shaped outline buttons for secondary actions.",
  "cornerStyle": "Mix of sharp corners on diagrams/code blocks and slightly rounded corners on UI elements like buttons (pill shape) and feature cards.",
  "contentWidth": "Content is generally centered with a max-width, while background animations and some large graphics extend full width.",
  "spacingRhythm": "Generous vertical spacing between major sections, allowing complex diagrams and animations room to breathe."
}
```

### Reconstruction specification

This is the implementation contract for the captured desktop viewport. Prefer section-specific facts here over general website descriptions.

- Root container was not deterministically isolated.
- Representative content widths: 247px.
- Layout containers: 0; cards/surfaces: 0; media elements: 5; browser animations: 0.

#### Container, grid, and spacing

```json
{
  "viewport": {
    "width": 1440,
    "captureBounds": {
      "top": 4629,
      "bottom": 5028,
      "pageHeight": 11039
    }
  },
  "container": null,
  "spacing": {
    "observedGapsPx": [],
    "representativeContentWidthsPx": [
      247
    ]
  },
  "columns": []
}
```

#### Cards and surfaces

```json
{
  "cards": [],
  "surfaces": {
    "radii": [],
    "borders": [],
    "shadows": []
  }
}
```

#### Media treatment

```json
[
  {
    "element": "img · h-full w-full translate-y-[var(--card-current-lift)] select-none [--card-current-lift:0%] group-hove",
    "size": "247×189px",
    "position": "x 392px, y 4547px",
    "aspectRatio": 1.3,
    "objectFit": "fill",
    "objectPosition": "50% 50%",
    "radius": "0px",
    "overflow": "clip",
    "source": "https://neon.com/_next/image?url=%2Fimages%2Fpages%2Fhome%2Fscale-your-app%2Fdeploy-reflex-dev.jpg&w=256&q=90&dpl=dpl_Ed6opTEemEDH9kNVMfG3PzrZC83m"
  },
  {
    "element": "img · h-full w-full translate-y-[var(--card-current-lift)] select-none [--card-current-lift:0%] group-hove",
    "size": "247×189px",
    "position": "x 456px, y 4595px",
    "aspectRatio": 1.3,
    "objectFit": "fill",
    "objectPosition": "50% 50%",
    "radius": "0px",
    "overflow": "clip",
    "source": "https://neon.com/_next/image?url=%2Fimages%2Fpages%2Fhome%2Fscale-your-app%2Fdeploy-glideapps-com.jpg&w=256&q=90&dpl=dpl_Ed6opTEemEDH9kNVMfG3PzrZC83m"
  },
  {
    "element": "img · h-full w-full translate-y-[var(--card-current-lift)] select-none [--card-current-lift:0%] group-hove",
    "size": "247×189px",
    "position": "x 538px, y 4652px",
    "aspectRatio": 1.3,
    "objectFit": "fill",
    "objectPosition": "50% 50%",
    "radius": "0px",
    "overflow": "clip",
    "source": "https://neon.com/_next/image?url=%2Fimages%2Fpages%2Fhome%2Fscale-your-app%2Fdeploy-retool-com.jpg&w=256&q=90&dpl=dpl_Ed6opTEemEDH9kNVMfG3PzrZC83m"
  },
  {
    "element": "img · h-full w-full translate-y-[var(--card-current-lift)] select-none [--card-current-lift:0%] group-hove",
    "size": "247×189px",
    "position": "x 639px, y 4709px",
    "aspectRatio": 1.3,
    "objectFit": "fill",
    "objectPosition": "50% 50%",
    "radius": "0px",
    "overflow": "clip",
    "source": "https://neon.com/_next/image?url=%2Fimages%2Fpages%2Fhome%2Fscale-your-app%2Fdeploy-anything-com.jpg&w=256&q=90&dpl=dpl_Ed6opTEemEDH9kNVMfG3PzrZC83m"
  },
  {
    "element": "img · h-full w-full translate-y-[var(--card-current-lift)] select-none [--card-current-lift:0%] group-hove",
    "size": "247×189px",
    "position": "x 774px, y 4757px",
    "aspectRatio": 1.3,
    "objectFit": "fill",
    "objectPosition": "50% 50%",
    "radius": "0px",
    "overflow": "clip",
    "source": "https://neon.com/_next/image?url=%2Fimages%2Fpages%2Fhome%2Fscale-your-app%2Fdeploy-laravel-com.jpg&w=256&q=90&dpl=dpl_Ed6opTEemEDH9kNVMfG3PzrZC83m"
  }
]
```

#### Browser-exposed animation parameters

```json
[]
```

### Measured geometry, surfaces, media, and animation

These raw values come from the saved element map and computed styles. Empty arrays mean the fact was not captured; they are not permission to invent source values.

```json
{
  "schema": "little-details-section-measurements-v1",
  "source": "saved DOM/CSS element and animation maps",
  "capturedAt": "2026-09-21T04:24:28.414Z",
  "viewportWidth": 1440,
  "bounds": {
    "top": 4629,
    "bottom": 5028,
    "pageHeight": 11039
  },
  "root": null,
  "spacing": {
    "gapsPx": [],
    "representativeContentWidthsPx": [
      247
    ]
  },
  "columns": [],
  "cards": [],
  "surfaces": {
    "radii": [],
    "borders": [],
    "shadows": []
  },
  "media": [
    {
      "id": "ld-744",
      "tag": "img",
      "role": null,
      "label": "h-full w-full translate-y-[var(--card-current-lift)] select-none [--card-current-lift:0%] group-hove",
      "rect": {
        "x": 392,
        "y": 4547,
        "width": 247,
        "height": 189
      },
      "aspectRatio": 1.3,
      "objectFit": "fill",
      "objectPosition": "50% 50%",
      "radius": "0px",
      "overflow": "clip",
      "media": {
        "src": "https://neon.com/_next/image?url=%2Fimages%2Fpages%2Fhome%2Fscale-your-app%2Fdeploy-reflex-dev.jpg&w=256&q=90&dpl=dpl_Ed6opTEemEDH9kNVMfG3PzrZC83m",
        "naturalWidth": 247,
        "naturalHeight": 188,
        "alt": ""
      }
    },
    {
      "id": "ld-746",
      "tag": "img",
      "role": null,
      "label": "h-full w-full translate-y-[var(--card-current-lift)] select-none [--card-current-lift:0%] group-hove",
      "rect": {
        "x": 456,
        "y": 4595,
        "width": 247,
        "height": 189
      },
      "aspectRatio": 1.3,
      "objectFit": "fill",
      "objectPosition": "50% 50%",
      "radius": "0px",
      "overflow": "clip",
      "media": {
        "src": "https://neon.com/_next/image?url=%2Fimages%2Fpages%2Fhome%2Fscale-your-app%2Fdeploy-glideapps-com.jpg&w=256&q=90&dpl=dpl_Ed6opTEemEDH9kNVMfG3PzrZC83m",
        "naturalWidth": 247,
        "naturalHeight": 188,
        "alt": ""
      }
    },
    {
      "id": "ld-748",
      "tag": "img",
      "role": null,
      "label": "h-full w-full translate-y-[var(--card-current-lift)] select-none [--card-current-lift:0%] group-hove",
      "rect": {
        "x": 538,
        "y": 4652,
        "width": 247,
        "height": 189
      },
      "aspectRatio": 1.3,
      "objectFit": "fill",
      "objectPosition": "50% 50%",
      "radius": "0px",
      "overflow": "clip",
      "media": {
        "src": "https://neon.com/_next/image?url=%2Fimages%2Fpages%2Fhome%2Fscale-your-app%2Fdeploy-retool-com.jpg&w=256&q=90&dpl=dpl_Ed6opTEemEDH9kNVMfG3PzrZC83m",
        "naturalWidth": 247,
        "naturalHeight": 188,
        "alt": ""
      }
    },
    {
      "id": "ld-750",
      "tag": "img",
      "role": null,
      "label": "h-full w-full translate-y-[var(--card-current-lift)] select-none [--card-current-lift:0%] group-hove",
      "rect": {
        "x": 639,
        "y": 4709,
        "width": 247,
        "height": 189
      },
      "aspectRatio": 1.3,
      "objectFit": "fill",
      "objectPosition": "50% 50%",
      "radius": "0px",
      "overflow": "clip",
      "media": {
        "src": "https://neon.com/_next/image?url=%2Fimages%2Fpages%2Fhome%2Fscale-your-app%2Fdeploy-anything-com.jpg&w=256&q=90&dpl=dpl_Ed6opTEemEDH9kNVMfG3PzrZC83m",
        "naturalWidth": 247,
        "naturalHeight": 188,
        "alt": ""
      }
    },
    {
      "id": "ld-752",
      "tag": "img",
      "role": null,
      "label": "h-full w-full translate-y-[var(--card-current-lift)] select-none [--card-current-lift:0%] group-hove",
      "rect": {
        "x": 774,
        "y": 4757,
        "width": 247,
        "height": 189
      },
      "aspectRatio": 1.3,
      "objectFit": "fill",
      "objectPosition": "50% 50%",
      "radius": "0px",
      "overflow": "clip",
      "media": {
        "src": "https://neon.com/_next/image?url=%2Fimages%2Fpages%2Fhome%2Fscale-your-app%2Fdeploy-laravel-com.jpg&w=256&q=90&dpl=dpl_Ed6opTEemEDH9kNVMfG3PzrZC83m",
        "naturalWidth": 247,
        "naturalHeight": 188,
        "alt": ""
      }
    }
  ],
  "animations": [],
  "coverage": {
    "elementsInSection": 10,
    "cards": 0,
    "media": 5,
    "animations": 0
  },
  "limitations": [
    "Values describe the captured desktop viewport and may change at other breakpoints.",
    "Transforms, sticky layers, and virtualized content can make the inferred section root approximate.",
    "Animations include browser-exposed Web Animations API state; CSS or script motion that was inactive at capture time may be absent."
  ]
}
```

### Observed motion

No timestamped authored motion is attached. Use only restrained baseline transitions.

The browser animation records above are deterministic parameters captured from active browser animations. The timestamped observations describe what Gemini saw in the video. Treat them as complementary evidence. When either source is empty or they conflict, state the uncertainty instead of inventing timing or easing.

### Responsive contract

- Measured viewport: 1440px wide.
- Mobile/tablet values: not measured by this section evidence unless a separate capture is explicitly listed.
- Preserve hierarchy and sequence; collapse simultaneous columns only where needed, maintain media aspect ratios, and verify touch targets and text wrapping at target breakpoints.

### Structure versus visual skin

- Preserve: content hierarchy, layout relationships, section rhythm, interaction purpose.
- Adapt: brand colors, font family, copy, imagery, icons, decorative details.
- Rule: Preserve the observed design logic while creating original branding, copy, assets, and implementation details.

### Adaptation and dependencies

- Effort: Not assessed
- What transfers: Documented hierarchy and composition
- Dependencies: None recorded
- Guidance: Adapt the pattern to the new product and content.

### Evidence readiness

- Coverage: 6/7
- Can build: Yes
- Missing facts: section-specific computed typography and color samples; timestamped authored motion
- Warning: Buildable with adaptations for these unsupported facts: section-specific computed typography and color samples; timestamped authored motion.

### Agent implementation prompt

Create an original features section inspired by the design evidence titled “Instant branching intro statement”.

Purpose: features section from the Home page of Neon.

Structure: captured layout. Source layout label: captured layout. Preserve the documented hierarchy and relationships; exact measurements were not deterministically captured.

Visual signature to preserve at the pattern level: Captured visual surface with captured layout. Inspect the crop for image and content hierarchy.

Components: Navigation Bar, Hero, Feature Card, Feature Collection, Testimonial Card, Logo Strip, Primary Button, Outline Button, Footer, Tabs, Product UI, Interactive Diagram, Code Snippet Block, Sticky Sidebar Navigation.

Style direction: corporate, typographic, minimal, cyberpunk-tech, developer-centric.

Observed crop: 1440×337px (4.273:1). Treat this as evidence of composition, not a mandatory output size.

Typography evidence: {"role":"display","size":"56px","family":"Inter","source":"computed","traits":"Regular","weight":"400","evidence":"font-7: computed CSS at 1440×1000; AI role: Large 56px Inter used for the main hero heading 'The backend for apps...'.","sampleId":"font-7","confidence":0.95,"lineHeight":"63px","letterSpacing":"-2.2px"} {"role":"heading","size":"52px","family":"Inter","source":"computed","traits":"Regular","weight":"400","evidence":"font-5: computed CSS at 1440×1000; AI role: 52px Inter used for prominent section headings like 'The way we build software is changing...'.","sampleId":"font-5","confidence":0.9,"lineHeight":"58.5px","letterSpacing":"-2.1px"} {"role":"body","size":"18px","family":"Inter","source":"computed","traits":"Regular","weight":"400","evidence":"font-16: computed CSS at 1440×1000; AI role: 18px Inter used for descriptive body copy detailing features like autoscaling.","sampleId":"font-16","confidence":0.85,"lineHeight":"27px","letterSpacing":"-0.4px"} {"role":"mono","size":"52px","family":"GeistMono","source":"computed","traits":"Regular","weight":"400","evidence":"font-25: computed CSS at 1440×1000; AI role: 52px GeistMono used for stylized, technical headings like 'WHERE STARTUPS START'.","sampleId":"font-25","confidence":0.9,"lineHeight":"63px","letterSpacing":"normal"}

Color evidence: {"hex":"#000000","name":"canvas","role":"canvas","source":"computed","evidence":"color-1: computed rgb(0, 0, 0); AI role: rgb(0, 0, 0) used extensively as the main background for the page.","sampleId":"color-1","confidence":0.95} {"hex":"#FFFFFF","name":"text","role":"text","source":"computed","evidence":"color-4: computed rgb(255, 255, 255); AI role: rgb(255, 255, 255) used for main body text and headings against dark backgrounds.","sampleId":"color-4","confidence":0.95} {"hex":"#34D59A","name":"primary action","role":"primary-action","source":"computed","evidence":"color-23: computed rgb(52, 213, 154); AI role: rgb(52, 213, 154) (and similar greens like color-35) used for key actionable elements and glowing visual accents.","sampleId":"color-23","confidence":0.9} {"hex":"#94979E","name":"muted text","role":"muted-text","source":"computed","evidence":"color-7: computed rgb(148, 151, 158); AI role: rgb(148, 151, 158) used for secondary text, descriptions, and labels.","sampleId":"color-7","confidence":0.85} {"hex":"#E4F1EB","name":"surface","role":"surface","source":"computed","evidence":"color-2: computed rgb(228, 241, 235); AI role: rgb(228, 241, 235) used as a background color for specific sections (e.g., autoscaling) to contrast with the dark canvas.","sampleId":"color-2","confidence":0.8} {"hex":"#303236","name":"border","role":"border","source":"computed","evidence":"color-12: computed rgb(48, 50, 54); AI role: rgb(48, 50, 54) used for borders around elements like the 'Read the docs' button.","sampleId":"color-12","confidence":0.8}

No section-bounded typography samples were measured.

No section-bounded color samples were measured.

Exact section measurements from the saved element map: spacing {"gapsPx":[],"representativeContentWidthsPx":[247]}; surfaces {"radii":[],"borders":[],"shadows":[]}; media [{"tag":"img","rect":{"x":392,"y":4547,"width":247,"height":189},"aspectRatio":1.3,"objectFit":"fill","objectPosition":"50% 50%","radius":"0px"},{"tag":"img","rect":{"x":456,"y":4595,"width":247,"height":189},"aspectRatio":1.3,"objectFit":"fill","objectPosition":"50% 50%","radius":"0px"},{"tag":"img","rect":{"x":538,"y":4652,"width":247,"height":189},"aspectRatio":1.3,"objectFit":"fill","objectPosition":"50% 50%","radius":"0px"},{"tag":"img","rect":{"x":639,"y":4709,"width":247,"height":189},"aspectRatio":1.3,"objectFit":"fill","objectPosition":"50% 50%","radius":"0px"}]

Do not invent signature motion. Use only restrained baseline transitions if the product needs them.

Transfer the documented hierarchy and composition rather than source copy or assets.

No explicit dependencies were recorded.

Adapt the pattern to the new product and content.

Use new copy, imagery, branding, and implementation details. Do not reproduce the source website or its proprietary assets.