I'll generate a complete standalone HTML file with all the CSS and JavaScript for the SecureNote demo page.

I've created a complete standalone HTML file at /public/securenote-demo.html. This file contains everything in a single self-contained file:

• All CSS styles embedded in the <style> tag
• All JavaScript embedded in the <script> tag
• Google Fonts loaded via CDN (Playfair Display, DM Sans, JetBrains Mono)
• All 8 animated scenes with scroll-snap navigation
• Custom cursor with ring effect
• Particle canvas background animation
• Interactive USB demo with connect/unlock flow
• Typing animation in the app walkthrough
• Note switching functionality
• Intersection Observer for scroll-triggered animations

You can access it at http://localhost:3000/securenote-demo.html or download the file directly to use anywhere without any dependencies.