ClearInvoice SaaS Hero

Build a high-performance, agency-grade SaaS section called "ClearInvoice SaaS Hero" in React 19, TypeScript, and Tailwind CSS with Framer Motion.

## 1. Overview & Visual Objective
Create a high-fidelity, dark-mode Hero section for a SaaS product called "ClearInvoice" using React and Tailwind CSS.

Visual Aesthetics & Mood:
dark saas hero fullscreen streaming video no overlay thin rainbow gradient top bar modern swiss grotesque headings clean geometric body invoice product crisp sleek professional high contrast polished modern

## 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)