AI Website Prompt Builder

Create a modern, single-page landing page website using a **glassmorphism** design style. The page should feel premium, airy, and futuristic.

## Design Requirements
- **Background**: A vibrant gradient background (e.g., deep purple → electric blue → teal) that spans the full viewport
- **Cards & Containers**: Use frosted-glass effect — semi-transparent backgrounds (rgba white at 10-20% opacity) with `backdrop-filter: blur(16px)` and a subtle 1px white/transparent border
- **Color Palette**: Primary gradient (#667eea → #764ba2), white text on glass elements, accent color for CTAs (#00d4ff)
- **Typography**: Clean sans-serif font (Inter), large hero heading (4-5rem), light font weights for body text
- **Layout**: Full-width hero section with centered content, 3-column feature cards below, testimonial section, and CTA footer

## Sections to Include
1. **Navigation Bar** — Transparent/glass nav with logo left, links right, glass effect on scroll
2. **Hero Section** — Large headline, subtext, two CTA buttons (primary filled, secondary outlined/glass)
3. **Features Grid** — 3 glassmorphic cards with icons, titles, and descriptions
4. **Social Proof** — Testimonial cards with glass effect, user avatars
5. **Pricing** — 3-tier pricing table with glass cards, highlighted "popular" tier
6. **Footer** — Minimal footer with links and newsletter signup

## Technical Details
- Responsive design (mobile-first)
- Smooth scroll behavior
- Subtle hover animations on cards (slight scale + glow)
- Use CSS backdrop-filter for glass effects
- Ensure text contrast meets accessibility standards on translucent backgrounds