あるけみすと

# Design Brief: Retro & Nostalgic (with Hand-Drawn & Sketch)

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

## Design Tokens

```css
:root {
  --background: #b3b5b4;
  --surface: #e5e3d9;
  --foreground: #20201b;
  --muted-foreground: #74766f;
  --accent: #f2d34b;
  --radius: 4px;
  --font-heading: "Yuji Syuku", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Yu Mincho", ui-sans-serif, system-ui, sans-serif;
}
```

Color area ratio: Background #B3B5B4 (~40%) · Surface #E5E3D9 (~40%) · Text #20201B (~6%) · Muted Text #74766F (~5%) · Accent #F2D34B (~9%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.

## Layout & Conversion Structure

- Hero layout: Split Copy & Visual
- Navigation: Minimal Logo + Action
- Theme & density: Light · Dense
- Border radius & elevation: Small Radius; use elevation shadows to separate layers
- Primary visual medium: Illustration / Character Art
- Conversion CTA: Start Free / Sign Up · Trust bar uses User Count, Rating, or Key Metrics
- Headline hook: Brand Manifesto & Curiosity
- Hero components: Custom Illustration, Metrics Strip
- Spatial layout notes: Split Copy & Visual hero structure paired with start free / sign up CTA and user count, rating, or key metrics.
- Visual summary: Retro & Nostalgic (Light canvas, dense density) featuring split copy & visual 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.