---
name: HeyGen
description: "A polished, premium AI SaaS example that balances high-impact typography with a clean, minimalist aesthetic."
version: alpha

colors:
  background: "#FFFFFF"
  primary: "#171717"
  secondary: "#333333"
  tertiary: "#00C3FF"
  neutral: "#00C3FF"
  bg-soft: "#F2F2F2"
  line: "rgba(23, 23, 23, 0.1)"

typography:
  display:
    fontFamily: geometric-sans
    fontSize: 60px
    lineHeight: 1.05
    fontWeight: 700
    letterSpacing: "-0.5px"
  heading:
    fontFamily: humanist-sans
    fontSize: 32px
    lineHeight: 1.2
    fontWeight: 700
    letterSpacing: "-0.14px"
  body:
    fontFamily: humanist-sans
    fontSize: 18px
    lineHeight: 1.4
    fontWeight: 400
    letterSpacing: "0px"
  small:
    fontFamily: humanist-sans
    fontSize: 14px
    lineHeight: 1.4
    fontWeight: 400
    letterSpacing: "0px"

rounded:
  sm: 4px
  md: 8px
  lg: 12px
  pill: 20px

spacing:
  xs: 4px
  sm: 8px
  md: 16px
  lg: 20px
  xl: 24px
  2xl: 30px
  3xl: 32px

---

## Overview

Turn your ideas into videos in minutes using lifelike AI avatars.

*A high-end AI video studio in your browser*

## Colors

Clean, bright white canvas with dark, high-contrast text and energetic cyan accents.

- **Background (`#FFFFFF`)** — uses `bg` token
- **Primary text (`#171717`)** — uses `ink` token
- **Secondary text (`#333333`)** — uses `ink-soft` token
- **Accent (`#00C3FF`)** — uses `accent` token
- **Muted (`#00C3FF`)** — uses `muted` token
- **Borders (`rgba(23, 23, 23, 0.1)`)** — uses `line` token

## Typography

- **Display:** geometric-sans
- **Body:** humanist-sans
- **Mono:** monospace

## Layout

Wide single-column hero followed by structured content sections.

*Rhythm:* Consistent 4px baseline grid with generous section spacing.

## Elevation & Depth

- rgba(0, 0, 0, 0) 0px 0px 0px 0px
- rgba(255, 255, 255, 0.9) 2.125px 2.125px 10px 0px inset
- rgba(255, 255, 255, 0.4) -2.125px -2.125px 20px 0px inset
- Borders: 1px solid rgba(23, 23, 23, 0.1)

## Shapes

- `sm`: 4px
- `md`: 8px
- `lg`: 12px
- `pill`: 20px

## Components

- **button:** Pill-shaped CTA buttons with cyan background and black text; secondary outlined buttons.
- **card:** Glassmorphic 3D shapes showcasing video outputs; clean white sections for features.
- **chip:** Subtle pill-shaped category tags like 'AI Avatar Generator'.
- **input:** Standard white input fields with soft rounded borders.
- **hero:** Split layout with bold typography on the left and interactive 3D graphics on the right.

## Do's and Don'ts

**Don't:**
- Don't use serif fonts — the screenshot exclusively uses geometric and humanist sans-serifs.
- Don't use a dark mode background — the primary background is solid white.
- Don't use complex multi-color gradients — the accent is a single, consistent cyan.
- Don't use sharp, square corners — all buttons and chips use rounded pill-shapes.
- Don't use dense, multi-column text blocks — content is laid out in wide, breathable sections.
- Don't use subtle, low-contrast text — the ink color is a very dark gray for high readability.

---

## System Prompt (paste into AI agent)

```
A high-end SaaS platform for AI video generation. Key colors are pure white (#FFFFFF), dark gray (#171717), and a vibrant cyan accent (#00C3FF). Typography features geometric and humanist sans-serifs with bold, large-scale headlines. Critical donts: Do not use dark mode or dark backgrounds. Do not use serif fonts or traditional typography. Do not use cluttered, multi-column layouts. Do not use sharp, square corners on UI components. Do not use low-contrast or muted color palettes.
```