Fullscreen Video Landing — Glass Nav

# Prompt

Create a modern React landing page with a full-screen HLS video background, glassmorphic navigation header, and hero content positioned in the bottom-left corner.

## Overview

Build a single landing page in React. The page should feature:

- A **full-screen HLS video background** that fills the viewport.
- A **glassmorphic navigation header**.
- **Hero content positioned in the bottom-left corner** of the page.