Grow AI Talent Platform

Build a high-performance, agency-grade SaaS section called "Grow AI Talent Platform" in React 19, TypeScript, and Tailwind CSS with Framer Motion.

## 1. Overview & Visual Objective
Build a dark-themed landing page hero section with a navbar, headline, CTA button, background video with fade-in/out loop, and a logo marquee. Use React + Vite + Tailwind CSS + TypeScript with shadcn/ui. Install @fontsource/geist-sans.

Visual Aesthetics & Mood:
very dark purple-black background violet purple accent fade-in fade-out looping video backdrop warm off-white text grotesque sans-serif logo marquee dark saas sleek modern smooth atmospheric polished subtle professional

## 2. Technical Stack & Dependencies
- Framework: React 19 + TypeScript + Vite
- Styling: Tailwind CSS v4 + Lucide React icons
- Animation Engine: Framer Motion (layout animations, spring physics, scroll-linked parallax)