next.config.ts

import type { NextConfig } from "next";

const nextConfig: NextConfig = {
  // Enable compression for better performance
  compress: true,

  // Power Page Speed Score
  poweredByHeader: false,

  // Image optimization
  images: {
    formats: ['image/avif', 'image/webp'],
    deviceSizes: [640, 750, 828, 1080, 1200, 1920, 2048, 3840],
    imageSizes: [16, 32, 48, 64, 96, 128, 256, 384],
  },

  async headers() {
    return [
      {
        // Apply security headers to all routes
        source: '/:path*',
        headers: [
          {
            key: 'Content-Security-Policy',
            value: [
              "default-src 'self'",
              "script-src 'self' 'unsafe-eval' 'unsafe-inline' https://va.vercel-scripts.com https://vitals.vercel-insights.com", // Vercel Analytics
              "style-src 'self' 'unsafe-inline'", // unsafe-inline needed for styled-components/CSS-in-JS
              "img-src 'self' data: blob: https:",
              "font-src 'self' data:",
              "connect-src 'self' http://localhost:8000 https://va.vercel-scripts.com https://vitals.vercel-insights.com https:", // Vercel Analytics
              "frame-ancestors 'none'",
              "base-uri 'self'",
              "form-action 'self'",
            ].join('; '),
          },
          {
            key: 'X-DNS-Prefetch-Control',
            value: 'on'
          },
          {
            key: 'Strict-Transport-Security',
            value: 'max-age=31536000; includeSubDomains; preload'
          },
          {
            key: 'X-Frame-Options',
            value: 'DENY'
          },
          {
            key: 'X-Content-Type-Options',
            value: 'nosniff'
          },
          {
            key: 'X-XSS-Protection',
            value: '1; mode=block'
          },
          {
            key: 'Referrer-Policy',
            value: 'strict-origin-when-cross-origin'
          },
          {
            key: 'Permissions-Policy',
            value: 'camera=(), microphone=(), geolocation=(), interest-cohort=()'
          }
        ],
      },
    ];
  },
};

export default nextConfig;