# Dark Banner CTA

Schema: Design Details SECTION.md v3.2
Website: Sunday
Source: https://www.sunday.ai/
Source section IDs: gap-ff356588-13807-14360
Status: AI analysed; vocabulary promotion is automated

## Builder's note

What makes it work:
- The solid dark rectangle against the white page makes the offer the strongest contrast on screen, so the eye lands there first.
- Copy is split by colour: a white statement carries the pitch and a yellow accent phrase marks the perk, giving hierarchy without changing size.
- One pill button sits beside the text, so there is a single clear action and nothing competes with it.

What a screenshot can't show:
- The recording showed no motion, so hover and entrance behaviour are unknown.
- No font sizes, line heights or spacing were measured, so the padding around the text can't be confirmed.

Borrow: Put one short pitch and one button inside a high-contrast block, and use a single accent colour to flag the key phrase.
Leave alone: Don't copy the yellow-on-charcoal pairing or the founding-families beta wording; choose your own accent colour and message.

## Classification

- Type: cta
- Layout: Contained centered text and button aligned horizontally within a dark block.
- Styles: minimal, bold
- Confidence: 97%

## Purpose and structure

A highly contrasting dark rectangular banner offering beta program access with a single button.

Visual signature: A solid dark gray rectangle standing out against the white page.

## Components

- Dark Container
- Call to Action Text
- Pill Button

## Typography

- Display: sans — 120px 400
- Heading: sans — 84px 400
- Body: sans — 18px 400
- Mono: mono — 14px 400

## Functional palette

- Text: text #000000
- Accent: accent #F7E731
- Canvas: canvas #F3F3F0
- Surface: surface #FFFFFF

## Motion evidence

- No section-specific authored motion was established.

## Section quality

Overall: 53.53/100 (Competent)
Scored coverage: 85%

- Typography: 55 — Clean sans-serif text with a simple color split (white statement, yellow accent phrase) creates basic hierarchy, but sizing is modest and uniform, offering little typographic ambition within this crop. Next tier: Needs stronger scale contrast or more deliberate weight/size pairing to move beyond a basic single-line statement.
- Composition: 54 — A single dark rectangle with horizontally centered text and button is tidy but very sparse, leaving large areas of empty space above and below the content with no secondary visual anchor. Next tier: Lacks additional compositional elements (secondary text, visual accent, layered depth) to justify the generous dark canvas beyond a plain centered line.
- Motion: not_assessed — No motion moments or timestamped behavior were supplied for this section. Next tier: Provide timestamped evidence of any visible motion (button hover, fade-in, etc.) to assess this axis.
- Content: 52 — Text content (founding families pitch, perks list, beta button) is coherent and purpose-driven, but integration is minimal—just one line of copy and one button with no supporting imagery or context. Next tier: Needs richer content pairing (e.g. visual, stat, or secondary CTA) integrated into the dark field to feel considered rather than a placeholder banner.
- Originality: 48 — A dark rectangular CTA banner with centered text and pill button is an extremely common pattern seen across many sites with no distinctive twist. Next tier: Would need a unique layout, motion, or graphic device to differentiate it from a generic dark CTA banner template.
- Adaptability: 58 — The structure (dark container, centered text, pill button) is simple and modular, making it straightforward to separate skin from structure using deterministic tokens (pill radius, color palette). Next tier: Lacks any distinguishing structural logic beyond trivial container-text-button pattern, capping how meaningfully adaptable insight can be framed.

Strengths:
- High contrast dark block clearly separates CTA from surrounding light page
- Pill button style is consistent with the site's rounded design language
- Accent color (yellow) is used sparingly to highlight key phrase

Weaknesses:
- Large amount of unused vertical space within the dark container feels unresolved
- Single-line text and one button offer minimal content depth
- Pattern is a widely used generic dark CTA banner with no distinguishing device
- No visible motion or interactive detail evidenced in the crop

Why it does not reach the next tier: The section is a clean but very standard dark CTA banner; it lacks a distinctive compositional idea, richer content integration, or confirmed motion detail that would elevate it past a competent, familiar pattern.

## Adaptation guidance

- Effort: Low
- Guidance: Reusable as a simple dark CTA block; swap text/button copy and accent color while preserving the centered layout and pill button shape.

What transfers:
- Dark contained banner structure
- Centered text + pill button layout
- Accent color highlight on secondary phrase

Dependencies:
- Specific yellow accent color and dark background token
- Pill button shape token

## 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%)
- No motion timestamps supplied, so motion axis is unscored
- Crop shows large empty space that may be intentional spacing not fully visible in context
- No imagery evidence beyond text and button

## 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: cta
- Source type: cta
- Structure: centered single-column
- Layout: Contained centered text and button aligned horizontally within a dark block.
- Styles: minimal, bold
- Components: Dark Container, Call to Action Text, Pill Button
- Purpose: A highly contrasting dark rectangular banner offering beta program access with a single button.
- Visual signature: A solid dark gray rectangle standing out against the white page.
- Place on the page: 9 of 11, after FAQ (`sunday-ai:C04`), before Footer (`dcd956b7-caaa-43ff-b61a-a676d6c57c90`)

### Crop and composition

- Deterministic crop dimensions are unavailable.
- Guidance: Use a narrow central reading axis and deliberate scale contrast rather than adding unnecessary side content.

### 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": "120px",
      "family": "sans",
      "source": "computed",
      "traits": "Regular",
      "weight": "400",
      "evidence": "font-4: computed CSS at 1440×1000; AI role: 120px sans-serif used for the primary 'Say hello to Memo' hero statement.",
      "sampleId": "font-4",
      "confidence": 1,
      "lineHeight": "120px",
      "letterSpacing": "-3px"
    },
    {
      "role": "heading",
      "size": "84px",
      "family": "sans",
      "source": "computed",
      "traits": "Regular",
      "weight": "400",
      "evidence": "font-3: computed CSS at 1440×1000; AI role: 84px sans-serif used for major section introductions.",
      "sampleId": "font-3",
      "confidence": 0.95,
      "lineHeight": "92.4px",
      "letterSpacing": "-2.1px"
    },
    {
      "role": "body",
      "size": "18px",
      "family": "sans",
      "source": "computed",
      "traits": "Regular",
      "weight": "400",
      "evidence": "font-1: computed CSS at 1440×1000; AI role: 18px sans-serif used for descriptive paragraphs.",
      "sampleId": "font-1",
      "confidence": 0.9,
      "lineHeight": "25.2px",
      "letterSpacing": "normal"
    },
    {
      "role": "mono",
      "size": "14px",
      "family": "mono",
      "source": "computed",
      "traits": "Regular",
      "weight": "400",
      "evidence": "font-2: computed CSS at 1440×1000; AI role: 14px monospace font used for labels, metadata, and fine print.",
      "sampleId": "font-2",
      "confidence": 0.85,
      "lineHeight": "16.8px",
      "letterSpacing": "0.4px"
    }
  ]
}
```

### 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": "text",
      "role": "text",
      "source": "computed",
      "evidence": "color-2: computed rgb(0, 0, 0); AI role: #000000 provides high contrast for primary typography.",
      "sampleId": "color-2",
      "confidence": 1
    },
    {
      "hex": "#F7E731",
      "name": "accent",
      "role": "accent",
      "source": "computed",
      "evidence": "color-6: computed rgb(247, 231, 49); AI role: #F7E731 bright yellow heavily applied to the footer section.",
      "sampleId": "color-6",
      "confidence": 0.95
    },
    {
      "hex": "#F3F3F0",
      "name": "canvas",
      "role": "canvas",
      "source": "computed",
      "evidence": "color-5: computed rgb(243, 243, 240); AI role: #F3F3F0 acts as the dominant off-white background color for much of the page.",
      "sampleId": "color-5",
      "confidence": 0.9
    },
    {
      "hex": "#FFFFFF",
      "name": "surface",
      "role": "surface",
      "source": "computed",
      "evidence": "color-1: computed rgb(255, 255, 255); AI role: #FFFFFF used for distinct sections or cards over the off-white canvas.",
      "sampleId": "color-1",
      "confidence": 0.85
    }
  ]
}
```

### Design tokens

```json
{
  "radius": "Large border radii on media containers and feature cards; fully rounded (pill-shaped) radii on buttons, tags, and the navigation bar.",
  "density": "Low density. The layout prioritizes large typography and media over dense information packing.",
  "evidence": "Observed via the visual spacing in full-page screenshots, pill-shaped nav/buttons, and the widespread application of rounded corners on video frames.",
  "borderStyle": "Minimal use of borders, typically restricted to thin, semi-transparent 1px outlines on interactive elements or floating containers.",
  "buttonStyle": "Pill-shaped, often employing outline styles with dark borders and text, sometimes transitioning to dark solid fills.",
  "cornerStyle": "Consistent use of rounded corners across almost all structural elements, avoiding sharp edges.",
  "contentWidth": "Content is generally centered within a maximum width, though large media blocks stretch wider with inset padding.",
  "spacingRhythm": "Generous vertical spacing between distinct sections, creating clear breathing room. Internal padding in grid items is also substantial."
}
```

### 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: low
- What transfers: Dark contained banner structure; Centered text + pill button layout; Accent color highlight on secondary phrase
- Dependencies: Specific yellow accent color and dark background token; Pill button shape token
- Guidance: Reusable as a simple dark CTA block; swap text/button copy and accent color while preserving the centered layout and pill button shape.

### Evidence readiness

- Coverage: 4/7
- Can build: Yes
- Missing facts: section-specific computed typography and color samples; section-level geometry, surfaces, media treatment, and animation parameters; timestamped authored motion
- Warning: Buildable with adaptations for these unsupported facts: section-specific computed typography and color samples; section-level geometry, surfaces, media treatment, and animation parameters; timestamped authored motion.

### Agent implementation prompt

Create an original cta section inspired by the design evidence titled “Dark Banner CTA”.

Purpose: A highly contrasting dark rectangular banner offering beta program access with a single button.

Structure: centered single-column. Source layout label: Contained centered text and button aligned horizontally within a dark block.. Use a narrow central reading axis and deliberate scale contrast rather than adding unnecessary side content.

Visual signature to preserve at the pattern level: A solid dark gray rectangle standing out against the white page.

Components: Dark Container, Call to Action Text, Pill Button.

Style direction: minimal, bold.

No deterministic crop dimensions were attached.

Typography evidence: {"role":"display","size":"120px","family":"sans","source":"computed","traits":"Regular","weight":"400","evidence":"font-4: computed CSS at 1440×1000; AI role: 120px sans-serif used for the primary 'Say hello to Memo' hero statement.","sampleId":"font-4","confidence":1,"lineHeight":"120px","letterSpacing":"-3px"} {"role":"heading","size":"84px","family":"sans","source":"computed","traits":"Regular","weight":"400","evidence":"font-3: computed CSS at 1440×1000; AI role: 84px sans-serif used for major section introductions.","sampleId":"font-3","confidence":0.95,"lineHeight":"92.4px","letterSpacing":"-2.1px"} {"role":"body","size":"18px","family":"sans","source":"computed","traits":"Regular","weight":"400","evidence":"font-1: computed CSS at 1440×1000; AI role: 18px sans-serif used for descriptive paragraphs.","sampleId":"font-1","confidence":0.9,"lineHeight":"25.2px","letterSpacing":"normal"} {"role":"mono","size":"14px","family":"mono","source":"computed","traits":"Regular","weight":"400","evidence":"font-2: computed CSS at 1440×1000; AI role: 14px monospace font used for labels, metadata, and fine print.","sampleId":"font-2","confidence":0.85,"lineHeight":"16.8px","letterSpacing":"0.4px"}

Color evidence: {"hex":"#000000","name":"text","role":"text","source":"computed","evidence":"color-2: computed rgb(0, 0, 0); AI role: #000000 provides high contrast for primary typography.","sampleId":"color-2","confidence":1} {"hex":"#F7E731","name":"accent","role":"accent","source":"computed","evidence":"color-6: computed rgb(247, 231, 49); AI role: #F7E731 bright yellow heavily applied to the footer section.","sampleId":"color-6","confidence":0.95} {"hex":"#F3F3F0","name":"canvas","role":"canvas","source":"computed","evidence":"color-5: computed rgb(243, 243, 240); AI role: #F3F3F0 acts as the dominant off-white background color for much of the page.","sampleId":"color-5","confidence":0.9} {"hex":"#FFFFFF","name":"surface","role":"surface","source":"computed","evidence":"color-1: computed rgb(255, 255, 255); AI role: #FFFFFF used for distinct sections or cards over the off-white canvas.","sampleId":"color-1","confidence":0.85}

No section-bounded typography samples were measured.

No section-bounded color samples were measured.

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 these principles: Dark contained banner structure; Centered text + pill button layout; Accent color highlight on secondary phrase.

Dependencies: Specific yellow accent color and dark background token; Pill button shape token.

Adaptation guidance: Reusable as a simple dark CTA block; swap text/button copy and accent color while preserving the centered layout and pill button shape.

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