Rcalbox

# Design Brief: Minimal Monochrome (with Retro & Nostalgic)

Monochrome palette with a single accent color, hairline dividers, and generous whitespace.

## Design Tokens

```css
:root {
  --background: #eef3f8;
  --surface: #ffffff;
  --foreground: #1b2340;
  --muted-foreground: #6b7280;
  --accent: #0e6b63;
  --radius: 16px;
  --font-heading: "Plus Jakarta Sans", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", ui-sans-serif, system-ui, sans-serif;
}
```

Color area ratio: Background #EEF3F8 (~46%) · Surface #FFFFFF (~18%) · Text #1B2340 (~16%) · Muted Text #6B7280 (~10%) · Accent #0E6B63 (~10%). 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: Full-Width Top Bar
- Theme & density: Light · Airy
- Border radius & elevation: Large Radius; use elevation shadows to separate layers
- Primary visual medium: Illustration / Character Art
- Conversion CTA: Download App / Install Extension · 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 download app / install extension CTA and user count, rating, or key metrics.
- Visual summary: Minimal Monochrome (Light canvas, airy density) featuring split copy & visual layout and illustration / character art visuals.

## Avoid

- Multi-stop neon gradients
- Heavy drop shadows
- More than one competing accent color

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.