# Sentient Navbar — Section Design Reference

Schema: Design Details SECTION.md v3.2
Source: https://sentient.foundation/
Website: Sentient
Section ID: 9cd187a1-3c25-4110-af5c-23ada940a45a
Design Details page: https://designdetails.io/sections/sentient-foundation--home--navbar-9cd187a1
Status: deterministic evidence captured; editorial AI review pending

## Purpose

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

## Layout

1440×63px root; block

## Visual signature

minimal, brutalist, typographic, immersive-media, technical treatment at 1440×63px. The crop spans 0–63px of a 12930px page.

## Components

- Navigation Bar
- Hero With Background Imagery
- Outline Button
- Feature Collection
- Footer
- Scroll Driven Narrative Scene
- Bracketed Text Link

## 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: navigation
- Source type: navbar
- Structure: 1440×63px root; block
- Layout: 1440×63px root; block
- Styles: minimal, brutalist, typographic, immersive-media, technical
- Components: Navigation Bar, Hero With Background Imagery, Outline Button, Feature Collection, Footer, Scroll Driven Narrative Scene, Bracketed Text Link
- Purpose: navbar section from the Home page of Sentient.
- Visual signature: rgba(0, 0, 0, 0) with 1440×63px root; block. Inspect the crop for image and content hierarchy.
- Place on the page: 1 of 9, before Hero (`sentient-foundation:hero_3d_figure`)

### Crop and composition

- Crop: 1440×63px; aspect ratio 22.857:1
- Page bounds: 0–63px of 12930px
- 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": [
    {
      "role": "action label",
      "family": "Geistmono",
      "stack": "Geistmono, Arial, sans-serif",
      "size": "12px",
      "weight": "500",
      "lineHeight": "15px",
      "letterSpacing": "normal",
      "sample": "Foundation",
      "element": "button",
      "occurrences": 67,
      "sourceId": "font-4"
    },
    {
      "role": "UI/supporting text",
      "family": "Geistmono",
      "stack": "Geistmono, Arial, sans-serif",
      "size": "12px",
      "weight": "500",
      "lineHeight": "15px",
      "letterSpacing": "normal",
      "sample": "Apply for Grant",
      "element": "span",
      "occurrences": 1,
      "sourceId": "font-9"
    }
  ],
  "siteRoles": [
    {
      "role": "display",
      "size": "65px",
      "family": "Neurialgrotesk",
      "source": "computed",
      "traits": "Regular",
      "weight": "500",
      "evidence": "font-3: computed CSS at 1440×1000; AI role: Large 65px Neurialgrotesk used for major section headings ('Where AI learns to feel...', 'Open AGI Summit').",
      "sampleId": "font-3",
      "confidence": 0.9,
      "lineHeight": "71.5px",
      "letterSpacing": "-0.6px"
    },
    {
      "role": "heading",
      "size": "40px",
      "family": "Neurialgrotesk",
      "source": "computed",
      "traits": "Regular",
      "weight": "500",
      "evidence": "font-1: computed CSS at 1440×1000; AI role: 40px Neurialgrotesk used for primary narrative text and subtitles in the hero and other sections.",
      "sampleId": "font-1",
      "confidence": 0.9,
      "lineHeight": "44px",
      "letterSpacing": "normal"
    },
    {
      "role": "body",
      "size": "14px",
      "family": "Neurialgrotesk",
      "source": "computed",
      "traits": "Regular",
      "weight": "500",
      "evidence": "font-6: computed CSS at 1440×1000; AI role: 14px Neurialgrotesk used for general descriptive body text.",
      "sampleId": "font-6",
      "confidence": 0.8,
      "lineHeight": "16.8px",
      "letterSpacing": "normal"
    },
    {
      "role": "mono",
      "size": "12px",
      "family": "Geistmono",
      "source": "computed",
      "traits": "Regular",
      "weight": "400",
      "evidence": "font-7: computed CSS at 1440×1000; AI role: 12px Geistmono used extensively for code snippets and secondary information.",
      "sampleId": "font-7",
      "confidence": 0.95,
      "lineHeight": "15px",
      "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": [
    {
      "value": "#F9F8F6",
      "cssValue": "rgb(249, 248, 246)",
      "alpha": 1,
      "appliedAs": [
        "background",
        "svg-fill",
        "text"
      ],
      "occurrences": 179,
      "sourceId": "color-1"
    },
    {
      "value": "#718698",
      "cssValue": "rgb(113, 134, 152)",
      "alpha": 1,
      "appliedAs": [
        "background",
        "text"
      ],
      "occurrences": 25,
      "sourceId": "color-2"
    },
    {
      "value": "#FFFFFF",
      "cssValue": "rgba(255, 255, 255, 0.01)",
      "alpha": 0.011764705882352941,
      "appliedAs": [
        "background"
      ],
      "occurrences": 1,
      "sourceId": "color-6"
    }
  ],
  "functionalPalette": [
    {
      "hex": "#F9F8F6",
      "name": "canvas",
      "role": "canvas",
      "source": "computed",
      "evidence": "color-1: computed rgb(249, 248, 246); AI role: Off-white #F9F8F6 used as the primary background color when canvas elements are not covering the viewport (e.g., news and footer sections).",
      "sampleId": "color-1",
      "confidence": 0.9
    },
    {
      "hex": "#0E0C0C",
      "name": "text",
      "role": "text",
      "source": "computed",
      "evidence": "color-9: computed rgb(14, 12, 12); AI role: Near-black #0E0C0C used for text in the light-themed lower sections (footer).",
      "sampleId": "color-9",
      "confidence": 0.9
    },
    {
      "hex": "#000000",
      "name": "border",
      "role": "border",
      "source": "computed",
      "evidence": "color-8: computed rgb(0, 0, 0); AI role: Black #000000 used for borders in the news feed list.",
      "sampleId": "color-8",
      "confidence": 0.85
    },
    {
      "hex": "#718698",
      "name": "surface",
      "role": "surface",
      "source": "computed",
      "evidence": "color-2: computed rgb(113, 134, 152); AI role: Slate blue #718698 associated with canvas containers and text over specific backgrounds.",
      "sampleId": "color-2",
      "confidence": 0.7
    }
  ]
}
```

### Design tokens

```json
{
  "radius": "Buttons appear fully rounded (pill shape), while most structural elements and images have sharp, 0px border-radii.",
  "density": "Very low density overall, prioritizing visual impact and motion over information density.",
  "evidence": "Observation of layout crops and DOM facts: use of '.layout_grid' for full viewport control, minimal button styles, and wide distribution of text nodes.",
  "borderStyle": "Thin, solid, 1px lines used sparingly as dividers in lists (news feed, footer).",
  "buttonStyle": "Minimalist outline style (pill-shaped) for primary actions, or simple inline text with brackets for secondary actions.",
  "cornerStyle": "Mix of sharp corners (bracketed links, general layout) and pill shapes (header button).",
  "contentWidth": "Full-bleed for media backgrounds, with text elements often constrained to specific columns or wide margins spanning the full viewport width.",
  "spacingRhythm": "Sparse and expansive. Content is often placed at edges or vertically centered with massive amounts of negative space to allow background visuals to take precedence."
}
```

### Reconstruction specification

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

- Root: 1440×63px; block; padding {"top":"0px","right":"0px","bottom":"0px","left":"0px"}; gap normal; background rgba(0, 0, 0, 0); radius 0px.
- Observed gaps: 10px.
- Layout containers: 0; cards/surfaces: 0; media elements: 1; browser animations: 0.

#### Container, grid, and spacing

```json
{
  "viewport": {
    "width": 1440,
    "captureBounds": {
      "top": 0,
      "bottom": 63,
      "pageHeight": 13487
    }
  },
  "container": {
    "size": "1440×63px",
    "position": "x 0px, y 0px",
    "display": "block",
    "positionMode": "fixed",
    "padding": {
      "top": "0px",
      "right": "0px",
      "bottom": "0px",
      "left": "0px"
    },
    "margin": {
      "top": "0px",
      "right": "0px",
      "bottom": "0px",
      "left": "0px"
    },
    "gap": "normal",
    "columns": "not captured",
    "background": "rgba(0, 0, 0, 0)",
    "radius": "0px",
    "border": "0px none rgb(42, 40, 31)",
    "shadow": "none",
    "overflow": "visible"
  },
  "spacing": {
    "observedGapsPx": [
      10
    ],
    "representativeContentWidthsPx": []
  },
  "columns": []
}
```

#### Cards and surfaces

```json
{
  "cards": [],
  "surfaces": {
    "radii": [
      "1425.6px"
    ],
    "borders": [
      "1px solid rgb(249, 248, 246)"
    ],
    "shadows": []
  }
}
```

#### Media treatment

```json
[
  {
    "element": "svg · svg",
    "size": "81×39px",
    "position": "x 16px, y 24px",
    "aspectRatio": 2.1,
    "objectFit": "fill",
    "objectPosition": "50% 50%",
    "radius": "0px",
    "overflow": "hidden",
    "source": "source not captured"
  }
]
```

#### 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": "2026-10-21T17:55:08.406Z",
  "viewportWidth": 1440,
  "bounds": {
    "top": 0,
    "bottom": 63,
    "pageHeight": 13487
  },
  "root": {
    "id": "ld-34",
    "tag": "nav",
    "role": null,
    "label": ".nav_blur { position: absolute; top: 0; left: 0; width: 100%; height: 180%; backdrop-filter: blur(12",
    "rect": {
      "x": 0,
      "y": 0,
      "width": 1440,
      "height": 63
    },
    "display": "block",
    "position": "fixed",
    "padding": {
      "top": "0px",
      "right": "0px",
      "bottom": "0px",
      "left": "0px"
    },
    "margin": {
      "top": "0px",
      "right": "0px",
      "bottom": "0px",
      "left": "0px"
    },
    "gap": "normal",
    "columns": null,
    "background": "rgba(0, 0, 0, 0)",
    "radius": "0px",
    "border": "0px none rgb(42, 40, 31)",
    "shadow": "none",
    "overflow": "visible"
  },
  "spacing": {
    "gapsPx": [
      10
    ],
    "representativeContentWidthsPx": []
  },
  "columns": [],
  "cards": [],
  "surfaces": {
    "radii": [
      "1425.6px"
    ],
    "borders": [
      "1px solid rgb(249, 248, 246)"
    ],
    "shadows": []
  },
  "media": [
    {
      "id": "ld-47",
      "tag": "svg",
      "role": null,
      "label": "svg",
      "rect": {
        "x": 16,
        "y": 24,
        "width": 81,
        "height": 39
      },
      "aspectRatio": 2.1,
      "objectFit": "fill",
      "objectPosition": "50% 50%",
      "radius": "0px",
      "overflow": "hidden",
      "media": null
    }
  ],
  "animations": [],
  "coverage": {
    "elementsInSection": 8,
    "cards": 0,
    "media": 1,
    "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: 7/7
- Can build: Yes
- Missing facts: timestamped authored motion
- Warning: Buildable with adaptations for these unsupported facts: timestamped authored motion.

### Agent implementation prompt

Create an original navigation section inspired by the design evidence titled “Sentient Navbar”.

Purpose: navbar section from the Home page of Sentient.

Structure: 1440×63px root; block. Source layout label: 1440×63px root; block. Preserve the documented hierarchy and relationships; exact measurements were not deterministically captured.

Visual signature to preserve at the pattern level: rgba(0, 0, 0, 0) with 1440×63px root; block. Inspect the crop for image and content hierarchy.

Components: Navigation Bar, Hero With Background Imagery, Outline Button, Feature Collection, Footer, Scroll Driven Narrative Scene, Bracketed Text Link.

Style direction: minimal, brutalist, typographic, immersive-media, technical.

Observed crop: 1440×63px (22.857:1). Treat this as evidence of composition, not a mandatory output size.

Typography evidence: {"role":"display","size":"65px","family":"Neurialgrotesk","source":"computed","traits":"Regular","weight":"500","evidence":"font-3: computed CSS at 1440×1000; AI role: Large 65px Neurialgrotesk used for major section headings ('Where AI learns to feel...', 'Open AGI Summit').","sampleId":"font-3","confidence":0.9,"lineHeight":"71.5px","letterSpacing":"-0.6px"} {"role":"heading","size":"40px","family":"Neurialgrotesk","source":"computed","traits":"Regular","weight":"500","evidence":"font-1: computed CSS at 1440×1000; AI role: 40px Neurialgrotesk used for primary narrative text and subtitles in the hero and other sections.","sampleId":"font-1","confidence":0.9,"lineHeight":"44px","letterSpacing":"normal"} {"role":"body","size":"14px","family":"Neurialgrotesk","source":"computed","traits":"Regular","weight":"500","evidence":"font-6: computed CSS at 1440×1000; AI role: 14px Neurialgrotesk used for general descriptive body text.","sampleId":"font-6","confidence":0.8,"lineHeight":"16.8px","letterSpacing":"normal"} {"role":"mono","size":"12px","family":"Geistmono","source":"computed","traits":"Regular","weight":"400","evidence":"font-7: computed CSS at 1440×1000; AI role: 12px Geistmono used extensively for code snippets and secondary information.","sampleId":"font-7","confidence":0.95,"lineHeight":"15px","letterSpacing":"normal"}

Color evidence: {"hex":"#F9F8F6","name":"canvas","role":"canvas","source":"computed","evidence":"color-1: computed rgb(249, 248, 246); AI role: Off-white #F9F8F6 used as the primary background color when canvas elements are not covering the viewport (e.g., news and footer sections).","sampleId":"color-1","confidence":0.9} {"hex":"#0E0C0C","name":"text","role":"text","source":"computed","evidence":"color-9: computed rgb(14, 12, 12); AI role: Near-black #0E0C0C used for text in the light-themed lower sections (footer).","sampleId":"color-9","confidence":0.9} {"hex":"#000000","name":"border","role":"border","source":"computed","evidence":"color-8: computed rgb(0, 0, 0); AI role: Black #000000 used for borders in the news feed list.","sampleId":"color-8","confidence":0.85} {"hex":"#718698","name":"surface","role":"surface","source":"computed","evidence":"color-2: computed rgb(113, 134, 152); AI role: Slate blue #718698 associated with canvas containers and text over specific backgrounds.","sampleId":"color-2","confidence":0.7}

Typography measured inside this section: {"id":"font-4","family":"Geistmono","fontStack":"Geistmono, Arial, sans-serif","weight":"500","size":"12px","lineHeight":"15px","letterSpacing":"normal","traits":"uppercase","count":67,"contexts":[{"tag":"button","text":"Foundation","top":28,"property":"font"},{"tag":"button","text":"Build","top":28,"property":"font"},{"tag":"a","text":"News","top":28,"property":"font"}]} {"id":"font-9","family":"Geistmono","fontStack":"Geistmono, Arial, sans-serif","weight":"500","size":"12px","lineHeight":"15px","letterSpacing":"normal","traits":"Regular","count":1,"contexts":[{"tag":"span","text":"Apply for Grant","top":36,"property":"font"}]}

Colors measured inside this section: {"id":"color-1","hex":"#F9F8F6","alpha":1,"cssValue":"rgb(249, 248, 246)","count":179,"contexts":[{"tag":"body","text":".layout_grid { position: fixed; inset: 0%; width: 100%; height: 100vh; overflow: hidden; z-index: 20","top":0,"property":"background"},{"tag":"path","text":"","top":24,"property":"svg-fill"},{"tag":"button","text":"Foundation","top":28,"property":"text"}]} {"id":"color-2","hex":"#718698","alpha":1,"cssValue":"rgb(113, 134, 152)","count":25,"contexts":[{"tag":"header","text":".canvas-container { aspect-ratio: 1920 / 1302; z-index: 2; } #canvas { width: 100%; height: 100%; di","top":0,"property":"background"},{"tag":"h2","text":"We are a growing collective of researchers, engineers, thinkers exploring the frontier of artificial","top":3998,"property":"text"},{"tag":"span","text":"Joit;{=","top":4008,"property":"text"}]} {"id":"color-6","hex":"#FFFFFF","alpha":0.011764705882352941,"cssValue":"rgba(255, 255, 255, 0.01)","count":1,"contexts":[{"tag":"div","text":"","top":0,"property":"background"}]}

Exact section measurements from the saved element map: root {"rect":{"x":0,"y":0,"width":1440,"height":63},"padding":{"top":"0px","right":"0px","bottom":"0px","left":"0px"},"gap":"normal","columns":null,"overflow":"visible"}; spacing {"gapsPx":[10],"representativeContentWidthsPx":[]}; surfaces {"radii":["1425.6px"],"borders":["1px solid rgb(249, 248, 246)"],"shadows":[]}; media [{"tag":"svg","rect":{"x":16,"y":24,"width":81,"height":39},"aspectRatio":2.1,"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.