Iris Assistant — Référence de design web et prompt

# Prompt: AI Assistant — Glass Iris chat dashboard

Build a single-file, one-screen **AI assistant chat dashboard** for a personal-finance app. Use plain HTML, CSS and vanilla JS, with no framework and no build step. The look is near-black with a cool electric-blue light falling from the top centre onto a living glass orb. The orb is a clear glass sphere with a swirling blue-violet core that slowly turns and pulses in a looping video.

## Scale

- **Units:** every length is in reference pixels of a 1440×1008 artboard, multiplied by `--u = min(100vw/1440, 100dvh/1008)`.
- **Fill:** the rail, top bar and hero stretch into any spare space, so there are never letterbox bands.

## Type and colour

- **Font:** Inter Tight 400/500/600.