_headers

/*
  # Security Headers
  X-Frame-Options: SAMEORIGIN
  X-Content-Type-Options: nosniff
  X-XSS-Protection: 1; mode=block
  Referrer-Policy: strict-origin-when-cross-origin
  Permissions-Policy: geolocation=(), microphone=(), camera=()

  # Content Security Policy (relaxed for CDNs and inline styles)
  Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com https://cdnjs.cloudflare.com; font-src 'self' https://fonts.gstatic.com https://cdnjs.cloudflare.com; img-src 'self' data: https:; connect-src 'self' https://generativelanguage.googleapis.com https://formspree.io; frame-ancestors 'self'

  # Cache Control
  Cache-Control: public, max-age=31536000, immutable

/*.html
  # HTML files - shorter cache
  Cache-Control: public, max-age=3600

/index.html
  # Home page - no cache for updates
  Cache-Control: no-cache, must-revalidate

/api/*
  # API routes - no cache
  Cache-Control: no-store, no-cache, must-revalidate