Neutral

# Design Brief: Retro & Nostalgic

Pixel typography, classic OS window chrome, or warm vintage print palettes.

## Design Tokens

```css
:root {
  --background: #a5a5a5;
  --surface: #ffffff;
  --foreground: #333333;
  --muted-foreground: #777777;
  --accent: #008f8b;
  --radius: 4px;
  --font-heading: "Arial", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Noto Serif JP", serif;
}
```

Color area ratio: Background #A5A5A5 (~45%) · Surface #FFFFFF (~29%) · Text #333333 (~6%) · Muted Text #777777 (~6%) · Accent #008F8B (~14%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.

## Layout & Conversion Structure

- Hero layout: Hero Bento Grid
- Navigation: Full-Width Top Bar
- Theme & density: Light · Dense
- Border radius & elevation: Small Radius; no drop shadows—separate layers with hairline borders and whitespace
- Primary visual medium: Illustration / Character Art
- Conversion CTA: Direct Input / Instant Try · Trust bar uses Stacked Avatars & Testimonials
- Headline hook: Category Positioning Anchor
- Hero components: Custom Illustration
- Spatial layout notes: Hero Bento Grid hero structure paired with direct input / instant try CTA and stacked avatars & testimonials.
- Visual summary: Retro & Nostalgic (Light canvas, dense density) featuring hero bento grid layout and illustration / character art visuals.

## Avoid

- Generic modern corporate gradients
- Inconsistent mixing of modern flat UI and retro chrome

Implement the UI following the design tokens and layout specifications above: use only these color variables, and reserve the accent color strictly for primary actions and active states. Adopt only this visual style—never copy any reference product’s brand name, logo, copy, or imagery.