A festive web application for Secret Santa gift exchanges with encrypted assignment links.

• 🎄 Splashy Christmas-themed UI with falling snowflakes and festive animations
• 🔐 Encrypted assignment links for secure Secret Santa assignments
• 🎁 Interactive gift reveal - click the gift box to discover your assignment
• 📱 Responsive design that works on all devices
• ✨ Celebration effects when the assignment is revealed

1. Welcome Page (/) - Shows a festive landing page for users without a valid token
2. Assignment Page (/{encrypted-token}) - Decrypts the token and shows:
   • A personalized greeting to the giver
   • An interactive gift box that reveals the receiver when clicked
   • Festive animations and celebration effects

• Uses AES-GCM encryption to secure assignment data
• Tokens are URL-safe Base64 encoded
• Requires ENCRYPTION_KEY environment variable (hex format)

The decrypted token should contain:

{
  "giver": "John Doe",
  "receiver": "Jane Smith"
}

Alternative field names are supported:

• from instead of giver
• to instead of receiver

• main.ts - Main HTTP handler with HTML page generation
• utils.ts - Encryption/decryption utilities
• README.md - This documentation

• ENCRYPTION_KEY - Hex-encoded encryption key for AES-GCM decryption

1. Generate encrypted tokens containing giver/receiver pairs
2. Share links in format: https://your-domain.com/{encrypted-token}
3. Recipients click the gift box to reveal their Secret Santa assignment

• Uses TailwindCSS for responsive styling
• Custom Christmas fonts (Mountains of Christmas)
• Animated snowflakes and celebration effects
• Festive color scheme with gradients and glowing effects