# Case study cards on dark — Section Design Reference

Schema: Design Details SECTION.md v3.2
Source: https://www.papermark.com/
Website: Papermark
Section ID: adc174cd-9342-4994-8d7e-0f3d922a725c
Design Details page: https://designdetails.io/sections/papermark-com--home--testimonials-adc174cd
Status: deterministic evidence partially captured; editorial AI review pending

## Purpose

This is a testimonials 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

minimal, corporate, bold, high-contrast treatment at 1440×1019px. The crop spans 4654–5673px of a 8279px page.

## Components

- Navigation Bar
- Hero With Background Imagery
- Product UI
- Stat Block
- Testimonial Card
- Logo Strip
- Footer
- Scroll Linked Highlight List
- Bar Chart Visualization

## 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: testimonials
- Source type: testimonials
- Structure: captured layout
- Layout: captured layout
- Styles: minimal, corporate, bold, high-contrast
- Components: Navigation Bar, Hero With Background Imagery, Product UI, Stat Block, Testimonial Card, Logo Strip, Footer, Scroll Linked Highlight List, Bar Chart Visualization
- Purpose: testimonials section from the Home page of Papermark.
- Visual signature: Captured visual surface with captured layout. Inspect the crop for image and content hierarchy.
- Place on the page: 9 of 13, after Testimonials (`f0d8c3e5-5dda-4b74-ac43-09cea66a290f`), before Feature collection (`67cb9848-9cdf-438a-ab04-6bca9b823b51`)

### Crop and composition

- Crop: 1440×1019px; aspect ratio 1.413:1
- Page bounds: 4654–5673px of 8279px
- 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": "section heading",
      "family": "Inter",
      "stack": "Inter, -apple-system, \"system-ui\", system-ui, sans-serif",
      "size": "26px",
      "weight": "500",
      "lineHeight": "29.9px",
      "letterSpacing": "-0.1px",
      "sample": "Real impact for real teams",
      "element": "h2",
      "occurrences": 1,
      "sourceId": "font-6"
    },
    {
      "role": "UI/supporting text",
      "family": "Inter",
      "stack": "Inter, -apple-system, \"system-ui\", system-ui, sans-serif",
      "size": "16px",
      "weight": "400",
      "lineHeight": "24px",
      "letterSpacing": "normal",
      "sample": "|",
      "element": "span",
      "occurrences": 5,
      "sourceId": "font-26"
    },
    {
      "role": "UI/supporting text",
      "family": "Inter",
      "stack": "Inter, -apple-system, \"system-ui\", system-ui, sans-serif",
      "size": "13px",
      "weight": "400",
      "lineHeight": "19.5px",
      "letterSpacing": "0.3px",
      "sample": "Read story →",
      "element": "div",
      "occurrences": 4,
      "sourceId": "font-31"
    },
    {
      "role": "card/subheading",
      "family": "__articulat_c65e33",
      "stack": "__articulat_c65e33, __articulat_Fallback_c65e33, Inter, system-ui, sans-serif, Inter, sans-serif",
      "size": "20px",
      "weight": "500",
      "lineHeight": "25px",
      "letterSpacing": "normal",
      "sample": "G.P. Loree & Co. runs every diligence room on Papermark.",
      "element": "div",
      "occurrences": 2,
      "sourceId": "font-32"
    },
    {
      "role": "section heading",
      "family": "__articulat_c65e33",
      "stack": "__articulat_c65e33, __articulat_Fallback_c65e33, Inter, system-ui, sans-serif, Inter, sans-serif",
      "size": "32px",
      "weight": "500",
      "lineHeight": "40px",
      "letterSpacing": "normal",
      "sample": "Papermark is the best VC-focused product Icebreaker has ever used.",
      "element": "div",
      "occurrences": 1,
      "sourceId": "font-37"
    }
  ],
  "siteRoles": [
    {
      "role": "display",
      "size": "92px",
      "family": "__articulat_c65e33",
      "source": "computed",
      "traits": "Regular",
      "weight": "500",
      "evidence": "font-2: computed CSS at 1440×1000; AI role: 92px __articulat font used for the main 'Close Deals Faster.' headline.",
      "sampleId": "font-2",
      "confidence": 1,
      "lineHeight": "96.6px",
      "letterSpacing": "-1.8px"
    },
    {
      "role": "heading",
      "size": "40px",
      "family": "Inter",
      "source": "computed",
      "traits": "Regular",
      "weight": "500",
      "evidence": "font-3: computed CSS at 1440×1000; AI role: 40px Inter font used for primary section headings.",
      "sampleId": "font-3",
      "confidence": 0.95,
      "lineHeight": "46px",
      "letterSpacing": "-0.6px"
    },
    {
      "role": "body",
      "size": "17px",
      "family": "Inter",
      "source": "computed",
      "traits": "Regular",
      "weight": "400",
      "evidence": "font-12: computed CSS at 1440×1000; AI role: 17px Inter font used for standard body copy in the hero.",
      "sampleId": "font-12",
      "confidence": 0.9,
      "lineHeight": "26.4px",
      "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": "#0A0A0A",
      "cssValue": "rgb(10, 10, 10)",
      "alpha": 1,
      "appliedAs": [
        "background"
      ],
      "occurrences": 1,
      "sourceId": "color-6"
    },
    {
      "value": "#000000",
      "cssValue": "rgba(0, 0, 0, 0.25)",
      "alpha": 0.25098039215686274,
      "appliedAs": [
        "::before-background"
      ],
      "occurrences": 2,
      "sourceId": "color-9"
    },
    {
      "value": "#FFFFFF",
      "cssValue": "rgba(255, 255, 255, 0.06)",
      "alpha": 0.058823529411764705,
      "appliedAs": [
        "border"
      ],
      "occurrences": 2,
      "sourceId": "color-38"
    },
    {
      "value": "#FFFFFF",
      "cssValue": "rgba(255, 255, 255, 0.25)",
      "alpha": 0.25098039215686274,
      "appliedAs": [
        "background",
        "text"
      ],
      "occurrences": 6,
      "sourceId": "color-48"
    }
  ],
  "functionalPalette": [
    {
      "hex": "#0B0B0B",
      "name": "canvas",
      "role": "canvas",
      "source": "computed",
      "evidence": "color-2: computed rgb(11, 11, 11); AI role: Deep dark #0B0B0B used as the primary background for the hero and footer sections.",
      "sampleId": "color-2",
      "confidence": 0.95
    },
    {
      "hex": "#FFFFFF",
      "name": "text",
      "role": "text",
      "source": "computed",
      "evidence": "color-1: computed rgb(255, 255, 255); AI role: White #FFFFFF used for primary text on dark backgrounds.",
      "sampleId": "color-1",
      "confidence": 0.9
    },
    {
      "hex": "#F5F3EE",
      "name": "surface",
      "role": "surface",
      "source": "computed",
      "evidence": "color-5: computed rgb(245, 243, 238); AI role: Off-white #F5F3EE used as the background for the highlight list section.",
      "sampleId": "color-5",
      "confidence": 0.85
    }
  ]
}
```

### Design tokens

```json
{
  "radius": "Small to medium border radii (e.g., 4px-8px for small UI elements, larger for main image containers).",
  "density": "Spacious and comfortable, relying heavily on negative space to draw attention to typography and data points.",
  "evidence": "Observed from the structured grid alignment, padding in section containers, and button CSS treatments.",
  "borderStyle": "Thin, low-contrast borders (e.g., #E5E7EB on light, rgba(255,255,255,0.06) on dark) used sparingly to separate list items or enclose cards.",
  "buttonStyle": "Solid fill primary buttons with high contrast text, and subtle outline buttons for secondary actions.",
  "cornerStyle": "Subtle rounding on interface elements like buttons, mockups, and feature cards, contrasting with straight-edged layout boundaries.",
  "contentWidth": "Wide max-width constraint for main content, often spanning horizontally but keeping text blocks readable.",
  "spacingRhythm": "Generous vertical padding between sections (often hundreds of pixels) to ensure strong separation and breathing room."
}
```

### 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.
- Layout containers: 0; cards/surfaces: 0; media elements: 0; browser animations: 0.

#### Container, grid, and spacing

```json
{
  "viewport": {
    "width": null,
    "captureBounds": null
  },
  "container": null,
  "spacing": {
    "observedGapsPx": [],
    "representativeContentWidthsPx": []
  },
  "columns": []
}
```

#### Cards and surfaces

```json
{
  "cards": [],
  "surfaces": null
}
```

#### Media treatment

```json
[]
```

#### 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
null
```

### 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: unknownpx 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-level geometry, surfaces, media treatment, and animation parameters; timestamped authored motion
- Warning: Buildable with adaptations for these unsupported facts: section-level geometry, surfaces, media treatment, and animation parameters; timestamped authored motion.

### Agent implementation prompt

Create an original testimonials section inspired by the design evidence titled “Case study cards on dark”.

Purpose: testimonials section from the Home page of Papermark.

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 With Background Imagery, Product UI, Stat Block, Testimonial Card, Logo Strip, Footer, Scroll Linked Highlight List, Bar Chart Visualization.

Style direction: minimal, corporate, bold, high-contrast.

Observed crop: 1440×1019px (1.413:1). Treat this as evidence of composition, not a mandatory output size.

Typography evidence: {"role":"display","size":"92px","family":"__articulat_c65e33","source":"computed","traits":"Regular","weight":"500","evidence":"font-2: computed CSS at 1440×1000; AI role: 92px __articulat font used for the main 'Close Deals Faster.' headline.","sampleId":"font-2","confidence":1,"lineHeight":"96.6px","letterSpacing":"-1.8px"} {"role":"heading","size":"40px","family":"Inter","source":"computed","traits":"Regular","weight":"500","evidence":"font-3: computed CSS at 1440×1000; AI role: 40px Inter font used for primary section headings.","sampleId":"font-3","confidence":0.95,"lineHeight":"46px","letterSpacing":"-0.6px"} {"role":"body","size":"17px","family":"Inter","source":"computed","traits":"Regular","weight":"400","evidence":"font-12: computed CSS at 1440×1000; AI role: 17px Inter font used for standard body copy in the hero.","sampleId":"font-12","confidence":0.9,"lineHeight":"26.4px","letterSpacing":"normal"}

Color evidence: {"hex":"#0B0B0B","name":"canvas","role":"canvas","source":"computed","evidence":"color-2: computed rgb(11, 11, 11); AI role: Deep dark #0B0B0B used as the primary background for the hero and footer sections.","sampleId":"color-2","confidence":0.95} {"hex":"#FFFFFF","name":"text","role":"text","source":"computed","evidence":"color-1: computed rgb(255, 255, 255); AI role: White #FFFFFF used for primary text on dark backgrounds.","sampleId":"color-1","confidence":0.9} {"hex":"#F5F3EE","name":"surface","role":"surface","source":"computed","evidence":"color-5: computed rgb(245, 243, 238); AI role: Off-white #F5F3EE used as the background for the highlight list section.","sampleId":"color-5","confidence":0.85}

Typography measured inside this section: {"id":"font-6","family":"Inter","fontStack":"Inter, -apple-system, \"system-ui\", system-ui, sans-serif","weight":"500","size":"26px","lineHeight":"29.9px","letterSpacing":"-0.1px","traits":"Regular","count":1,"contexts":[{"tag":"h2","text":"Real impact for real teams","top":4821,"property":"font"}]} {"id":"font-26","family":"Inter","fontStack":"Inter, -apple-system, \"system-ui\", system-ui, sans-serif","weight":"400","size":"16px","lineHeight":"24px","letterSpacing":"normal","traits":"Regular","count":5,"contexts":[{"tag":"span","text":"|","top":5527,"property":"font"},{"tag":"span","text":"|","top":5527,"property":"font"},{"tag":"span","text":"|","top":5527,"property":"font"}]} {"id":"font-31","family":"Inter","fontStack":"Inter, -apple-system, \"system-ui\", system-ui, sans-serif","weight":"400","size":"13px","lineHeight":"19.5px","letterSpacing":"0.3px","traits":"Regular","count":4,"contexts":[{"tag":"div","text":"Read story →","top":5398,"property":"font"},{"tag":"span","text":"→","top":5398,"property":"font"},{"tag":"span","text":"→","top":5402,"property":"font"}]} {"id":"font-32","family":"__articulat_c65e33","fontStack":"__articulat_c65e33, __articulat_Fallback_c65e33, Inter, system-ui, sans-serif, Inter, sans-serif","weight":"500","size":"20px","lineHeight":"25px","letterSpacing":"normal","traits":"Regular","count":2,"contexts":[{"tag":"div","text":"G.P. Loree & Co. runs every diligence room on Papermark.","top":5342,"property":"font"},{"tag":"div","text":"How Backtrace closed Fund I €50M+ on Papermark.","top":5342,"property":"font"}]} {"id":"font-37","family":"__articulat_c65e33","fontStack":"__articulat_c65e33, __articulat_Fallback_c65e33, Inter, system-ui, sans-serif, Inter, sans-serif","weight":"500","size":"32px","lineHeight":"40px","letterSpacing":"normal","traits":"Regular","count":1,"contexts":[{"tag":"div","text":"Papermark is the best VC-focused product Icebreaker has ever used.","top":5261,"property":"font"}]}

Colors measured inside this section: {"id":"color-6","hex":"#0A0A0A","alpha":1,"cssValue":"rgb(10, 10, 10)","count":1,"contexts":[{"tag":"section","text":"Enterprise-grade security and controlsPapermark meets the highest industry standards for security, p","top":5673,"property":"background"}]} {"id":"color-9","hex":"#000000","alpha":0.25098039215686274,"cssValue":"rgba(0, 0, 0, 0.25)","count":2,"contexts":[{"tag":"a","text":"G.P. Loree & Co. runs every diligence room on Papermark.Read story →","top":4905,"property":"::before-background"}]} {"id":"color-38","hex":"#FFFFFF","alpha":0.058823529411764705,"cssValue":"rgba(255, 255, 255, 0.06)","count":2,"contexts":[{"tag":"section","text":"Enterprise-grade security and controlsPapermark meets the highest industry standards for security, p","top":5673,"property":"border"}]} {"id":"color-48","hex":"#FFFFFF","alpha":0.25098039215686274,"cssValue":"rgba(255, 255, 255, 0.25)","count":6,"contexts":[{"tag":"span","text":"","top":863,"property":"background"},{"tag":"span","text":"|","top":5527,"property":"text"}]}

No saved element-map measurements were available; do not invent exact source spacing, card, media, or animation values.

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.