Corvana AI — Référence de design web et prompt

# Prompt: Corvana AI hero

Build a single-file, one-screen **landing hero for an AI copilot that runs clinic front desks** for a fictional company, **Corvana AI**. Use plain HTML, CSS and vanilla JS, with no framework and no build step. It's bright, clean and warm: a white page, a coral accent, a pixel-art heartbeat line running behind the main button, and a strip of three tall rounded panels (a laughing patient, a check-ins chart and a patient-trust widget over a coral peony).

## Type and colour

- **Type:** a tight neo-grotesk (Inter / Inter Display style) for everything, self-hosted woff2 at 400/500/600. The headline is 500 weight with very tight tracking (about −0.045em).
- **Page:** white `#FEFEFE`, ink `#000`, nav ink `#3A3C40`, muted `#5E6064`.
- **Accents:** coral `#F8533F`, announcement coral `#FA6E5C`, data violet `#7A5CF0`, chip lavender `#F1EDFE→#E8E2FD` with violet text `#6A4CEB`.

## Scaling