404 Planet

Build a full-page 404 error page for a hosting company called "NEXOVA". The entire page is a single viewport-height layout with a looping background video, a navigation bar, a centered hero/404 section, and a multi-column footer. Use React + Tailwind CSS + Lucide React icons. No other UI libraries.

---

**FONT**

Load "Helvetica Now Var" via this stylesheet in `index.html`:
```
<link href="https://db.onlinewebfonts.com/c/e66905e07608167a84e6ad52f638c3c6?family=Helvetica+Now+Var" rel="stylesheet">
```
Apply it globally on the root container via inline style:
```