Luvu

# BUILD SPEC — "LUVU" · single-screen, mouse-scrubbed video hero

Build exactly this. Every value is measured — do not round or "improve" it. CRITICAL notes are hard requirements.

## 1. CONCEPT
`LUVU` is a fictional makeup house. One-screen, non-scrolling editorial hero: a full-bleed video portrait of a model holding a lipstick, with all UI (wordmark, nav, body copy, product caption, custom cursor) floating above it in a single `mix-blend-mode: exclusion` layer, so type inverts itself against the footage — dark over blown-out highlights, light over shadows, no hue shift.
**Defining interaction:** the page never…