Peppol Validator

# Design Brief: Editorial (with Minimal Monochrome)

Oversized serif headlines, narrow reading columns, and magazine-inspired grid layouts.

## Design Tokens

```css
:root {
  --background: #f8f8f8;
  --surface: #ffffff;
  --foreground: #0a0a0a;
  --muted-foreground: #636363;
  --accent: #262626;
  --radius: 4px;
  --font-heading: "Instrument Serif", serif;
  --font-body: "Source Sans 3", ui-sans-serif, system-ui, sans-serif;
}
```

Color area ratio: Background #F8F8F8 (~81%) · Surface #FFFFFF (~12%) · Text #0A0A0A (~4%) · Muted Text #636363 (~2%) · Accent #262626 (~1%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.

## Layout & Conversion Structure

- Hero layout: Editorial Serif Headline
- Navigation: Full-Width Top Bar
- Theme & density: Light · Airy
- Border radius & elevation: Small Radius; no drop shadows—separate layers with hairline borders and whitespace
- Primary visual medium: Interactive Hero Demo / Tool
- Conversion CTA: Direct Input / Instant Try
- Headline hook: Category Positioning Anchor
- Hero components: Interactive Hero Tool
- Spatial layout notes: Editorial Serif Headline hero structure paired with direct input / instant try CTA and no explicit trust bar.
- Visual summary: Editorial (Light canvas, airy density) featuring editorial serif headline layout and interactive hero demo / tool visuals.

## Avoid

- Generic SaaS hero templates
- Cramped multi-column feature grids
- Neon cyber accents

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.