# Particle Animation Editorial

Schema: Design Details SECTION.md v3.2
Website: Sentient
Source: https://sentient.foundation/
Source section IDs: beafe1f3-d3d9-4416-97de-f6bdbd4ee6b7
Status: AI analysed; vocabulary promotion is automated

## Classification

- Type: editorial
- Layout: split content with large graphic
- Styles: minimal, typographic, illustrative
- Confidence: 95%

## Purpose and structure

A clean white section with a prominent headline and a dynamic shape made of small dots or particles.

Visual signature: A solid white background featuring large text 'Where AI learns to feel' alongside a dispersed point-cloud or particle formation.

## Components

- particle animation
- headline typography

## Typography

- Display: Neurialgrotesk — 65px 500
- Heading: Neurialgrotesk — 40px 500
- Body: Neurialgrotesk — 14px 500
- Mono: Geistmono — 12px 400

## Functional palette

- Canvas: canvas #F9F8F6
- Text: text #0E0C0C
- Border: border #000000
- Surface: surface #718698

## Motion evidence

- 9.0–12.0s — The video background fades to solid white from the bottom up. Text appears on the left, and a shape made of small dots (particles) forms in the center. (95% confidence)

## Section quality

Overall: 57.85/100 (Competent)
Scored coverage: 100%

- Typography: 62 — Clean two-weight hierarchy: large 65px display headline paired with a tiny monospace caption creates clear scale contrast, but the headline itself is a simple sans-serif set with no distinguishing treatment beyond size. Next tier: Needs more deliberate type craft (e.g., varied weights, kerning, or integration with the particle graphic) to move beyond a standard big-headline pattern.
- Composition: 63 — Asymmetric split with headline top-left, a large central particle silhouette, and small caption bottom-left creates breathing room and a clear focal path, but the balance is a familiar text-top/graphic-below template. Next tier: Lacks a more unexpected or tightly integrated relationship between type and graphic to justify a higher composition score.
- Motion: 55 — Gemini's timestamped moment (9-12s) confirms a fade from video to white background with text appearing and a particle shape forming, which is visible and specific enough to score, but it's a single coarse-grained transition without detail on particle choreography. Next tier: Would need finer detail on how the particle cloud assembles (timing, easing, directionality) to score higher; current evidence is a single broad transition.
- Content: 52 — The particle shape forms a recognizable animal-like silhouette tied loosely to the 'feel' messaging, but the connection between copy and graphic is decorative rather than explanatory or functional. Next tier: Content and graphic need a clearer causal or illustrative link to the message rather than an abstract motif that could be swapped without affecting meaning.
- Originality: 54 — Point-cloud/particle formations are a common motif in AI and tech marketing sites; the silhouette formed is mildly distinctive but the overall device is not new. Next tier: Needs a more surprising or signature visual idea beyond the now-common particle-dissolve technique to reach memorable territory.
- Adaptability: 58 — The section cleanly separates into headline text, small caption, and a particle graphic layer, all positioned with ample whitespace, making structural adaptation straightforward. Next tier: Reliance on a custom particle-generation asset (shape definition, point density) ties the visual to specific proprietary data/motion, limiting skin-only reuse.

Strengths:
- Clear scale contrast between large display headline and small mono caption
- Generous negative space keeps focus on the headline and particle graphic
- Single specific motion moment (9-12s) confirms readable transition behavior

Weaknesses:
- Particle/point-cloud motif is a common, overused technique in AI-themed sites
- Connection between headline copy and the particle silhouette is decorative rather than meaningful
- Only one motion moment provided, limiting insight into the particle formation choreography
- Typography treatment is otherwise generic sans-serif sizing without additional craft

Why it does not reach the next tier: The layout and transition are clean and readable but rely on a familiar particle-dissolve device and a loose thematic link between text and graphic; nothing here is distinctive enough to feel hard to substitute.

## Adaptation guidance

- Effort: Medium
- Guidance: Reuse the headline/caption hierarchy and layout rhythm; the particle formation itself would need re-implementation (canvas/WebGL/SVG point-cloud) rather than simple CSS swap, and its exact shape and point behavior are proprietary to this video asset.

What transfers:
- Large headline plus small mono caption pairing
- Asymmetric split layout with graphic occupying lower two-thirds
- Fade-from-video-to-white transition concept

Dependencies:
- Custom particle shape generation algorithm/asset
- Specific video-to-static background transition timing
- Font family (Neurialgrotesk) for hierarchy consistency

## Living vocabulary

- No reusable vocabulary candidates were supported by this section.

Only terms with status `active` enter the public taxonomy. Deferred and proposed terms remain available to later AI passes; rejected terms remain as provenance so they are not repeatedly reinvented.

## Provenance and limitations

- Section boundaries and naming: Gemini Pro visual observation
- Motion observations: Gemini Pro direct-video analysis
- Quality judgment: Claude
- Exact design facts: browser/CSS extraction at website scope
- Rubric: Design Details section rubric 3.2 (Typography 20%, Composition 20%, Motion 15%, Content 15%, Originality 15%, Adaptability 15%)
- Motion data limited to a single 3-second timestamped moment, no detail on particle animation internals
- No deterministic color/spacing data specific to this crop beyond general site tokens
- Cannot verify exact font rendering or particle count/behavior from screenshot alone

## Usage guidance

Use this section as design evidence. Create an original implementation; do not reproduce the source copy, assets, or proprietary composition exactly.

## Build blueprint v3.2

### Purpose and classification

- Canonical type: editorial
- Source type: editorial
- Structure: two-column
- Layout: split content with large graphic
- Styles: minimal, typographic, illustrative
- Components: particle animation, headline typography
- Purpose: A clean white section with a prominent headline and a dynamic shape made of small dots or particles.
- Visual signature: A solid white background featuring large text 'Where AI learns to feel' alongside a dispersed point-cloud or particle formation.

### Crop and composition

- Crop: 1440×1167px; aspect ratio 1.234:1
- Page bounds: 2708–3875px of 12930px
- Guidance: Preserve the visual relationship between the two columns; adapt their ratio to the new content instead of copying the source dimensions.

### 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": "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": "#5C5C5C",
      "cssValue": "rgb(92, 92, 92)",
      "alpha": 1,
      "appliedAs": [
        "text"
      ],
      "occurrences": 4,
      "sourceId": "color-5"
    }
  ],
  "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: 1440×900px; block; padding {"top":"0px","left":"0px","right":"0px","bottom":"0px"}; gap normal; background rgba(0, 0, 0, 0); radius 0px.
- Representative content widths: 1408, 704px.
- Layout containers: 1; cards/surfaces: 0; media elements: 1; browser animations: 0.

#### Container, grid, and spacing

```json
{
  "viewport": {
    "width": 1440,
    "captureBounds": {
      "top": 2708,
      "bottom": 3875,
      "pageHeight": 12930
    }
  },
  "container": {
    "size": "1440×900px",
    "position": "x 0px, y 2706px",
    "display": "block",
    "positionMode": "relative",
    "padding": {
      "top": "0px",
      "left": "0px",
      "right": "0px",
      "bottom": "0px"
    },
    "margin": {
      "top": "0px",
      "left": "0px",
      "right": "0px",
      "bottom": "0px"
    },
    "gap": "normal",
    "columns": "not captured",
    "background": "rgba(0, 0, 0, 0)",
    "radius": "0px",
    "border": "0px none rgb(42, 40, 31)",
    "shadow": "none",
    "overflow": "clip"
  },
  "spacing": {
    "observedGapsPx": [],
    "representativeContentWidthsPx": [
      1408,
      704
    ]
  },
  "columns": [
    {
      "element": "p · Open Sourcet Ope!_?+—*=—] Open Future.",
      "size": "704×45px",
      "position": "x 16px, y 3561px",
      "display": "flex",
      "template": "not captured",
      "direction": "column",
      "gap": "normal"
    }
  ]
}
```

#### Cards and surfaces

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

#### Media treatment

```json
[
  {
    "element": "video · video",
    "size": "1440×900px",
    "position": "x 0px, y 2706px",
    "aspectRatio": 1.6,
    "objectFit": "cover",
    "objectPosition": "50% 50%",
    "radius": "0px",
    "overflow": "clip",
    "source": "https://sentient.foundation/assets/video/3896669c_698daec2aaf157233be32093_Main_Loop_3_mp4.mp4"
  }
]
```

#### 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
{
  "root": {
    "id": "ld-154",
    "gap": "normal",
    "tag": "section",
    "rect": {
      "x": 0,
      "y": 2706,
      "width": 1440,
      "height": 900
    },
    "role": null,
    "label": "Where AI learns to feel,and you shape what it becomesOpen Sourcet Ope!_?+—*=—] Open Future. .js-vide",
    "border": "0px none rgb(42, 40, 31)",
    "margin": {
      "top": "0px",
      "left": "0px",
      "right": "0px",
      "bottom": "0px"
    },
    "radius": "0px",
    "shadow": "none",
    "columns": null,
    "display": "block",
    "padding": {
      "top": "0px",
      "left": "0px",
      "right": "0px",
      "bottom": "0px"
    },
    "overflow": "clip",
    "position": "relative",
    "background": "rgba(0, 0, 0, 0)"
  },
  "cards": [],
  "media": [
    {
      "id": "ld-168",
      "tag": "video",
      "rect": {
        "x": 0,
        "y": 2706,
        "width": 1440,
        "height": 900
      },
      "role": null,
      "label": "video",
      "media": {
        "src": "https://sentient.foundation/assets/video/3896669c_698daec2aaf157233be32093_Main_Loop_3_mp4.mp4",
        "poster": "",
        "duration": 10.433333
      },
      "radius": "0px",
      "overflow": "clip",
      "objectFit": "cover",
      "aspectRatio": 1.6,
      "objectPosition": "50% 50%"
    }
  ],
  "bounds": {
    "top": 2708,
    "bottom": 3875,
    "pageHeight": 12930
  },
  "schema": "little-details-section-measurements-v1",
  "source": "saved DOM/CSS element and animation maps",
  "columns": [
    {
      "id": "ld-159",
      "gap": "normal",
      "tag": "p",
      "rect": {
        "x": 16,
        "y": 3561,
        "width": 704,
        "height": 45
      },
      "role": null,
      "label": "Open Sourcet Ope!_?+—*=—] Open Future.",
      "columns": null,
      "display": "flex",
      "direction": "column"
    }
  ],
  "spacing": {
    "gapsPx": [],
    "representativeContentWidthsPx": [
      1408,
      704
    ]
  },
  "coverage": {
    "cards": 0,
    "media": 1,
    "animations": 0,
    "elementsInSection": 7
  },
  "surfaces": {
    "radii": [],
    "borders": [],
    "shadows": []
  },
  "animations": [],
  "capturedAt": "2026-10-21T17:55:08.406Z",
  "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."
  ],
  "viewportWidth": 1440
}
```

### Observed motion

1. **entrance** — The video background fades to solid white from the bottom up. Text appears on the left, and a shape made of small dots (particles) forms in the center. (9s–12s; 95% confidence). Recreate the interaction principle with project-appropriate timing and easing; the evidence does not guarantee source easing values.

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: medium
- What transfers: Large headline plus small mono caption pairing; Asymmetric split layout with graphic occupying lower two-thirds; Fade-from-video-to-white transition concept
- Dependencies: Custom particle shape generation algorithm/asset; Specific video-to-static background transition timing; Font family (Neurialgrotesk) for hierarchy consistency
- Guidance: Reuse the headline/caption hierarchy and layout rhythm; the particle formation itself would need re-implementation (canvas/WebGL/SVG point-cloud) rather than simple CSS swap, and its exact shape and point behavior are proprietary to this video asset.

### Evidence readiness

- Coverage: 7/7
- Can build: Yes
- Missing facts: None


### Agent implementation prompt

Create an original editorial section inspired by the design evidence titled “Particle Animation Editorial”.

Purpose: A clean white section with a prominent headline and a dynamic shape made of small dots or particles.

Structure: two-column. Source layout label: split content with large graphic. Preserve the visual relationship between the two columns; adapt their ratio to the new content instead of copying the source dimensions.

Visual signature to preserve at the pattern level: A solid white background featuring large text 'Where AI learns to feel' alongside a dispersed point-cloud or particle formation.

Components: particle animation, headline typography.

Style direction: minimal, typographic, illustrative.

Observed crop: 1440×1167px (1.234:1). 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}

No section-bounded typography samples were measured.

Colors measured inside this section: {"id":"color-5","hex":"#5C5C5C","alpha":1,"count":4,"contexts":[{"tag":"h2","top":2706,"text":"Where AI learns to feel,and you shape what it becomes","property":"text"},{"tag":"span","top":3561,"text":"Open Source.","property":"text"}],"cssValue":"rgb(92, 92, 92)"}

Exact section measurements from the saved element map: root {"rect":{"x":0,"y":2706,"width":1440,"height":900},"padding":{"top":"0px","left":"0px","right":"0px","bottom":"0px"},"gap":"normal","columns":null,"overflow":"clip"}; spacing {"gapsPx":[],"representativeContentWidthsPx":[1408,704]}; surfaces {"radii":[],"borders":[],"shadows":[]}; media [{"tag":"video","rect":{"x":0,"y":2706,"width":1440,"height":900},"aspectRatio":1.6,"objectFit":"cover","objectPosition":"50% 50%","radius":"0px"}]

Motion evidence: entrance: The video background fades to solid white from the bottom up. Text appears on the left, and a shape made of small dots (particles) forms in the center. (95% confidence)

Transfer these principles: Large headline plus small mono caption pairing; Asymmetric split layout with graphic occupying lower two-thirds; Fade-from-video-to-white transition concept.

Dependencies: Custom particle shape generation algorithm/asset; Specific video-to-static background transition timing; Font family (Neurialgrotesk) for hierarchy consistency.

Adaptation guidance: Reuse the headline/caption hierarchy and layout rhythm; the particle formation itself would need re-implementation (canvas/WebGL/SVG point-cloud) rather than simple CSS swap, and its exact shape and point behavior are proprietary to this video asset.

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