nginx.conf

server {
    listen       80;
    listen  [::]:80;
    server_name  localhost;

    # Root & index
    root   /usr/share/nginx/html;
    index  index.html;

    # Gzip compression
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types
        text/plain
        text/css
        text/xml
        text/javascript
        application/javascript
        application/json
        application/xml
        image/svg+xml;

    # Security headers
    add_header X-Frame-Options          "SAMEORIGIN"  always;
    add_header X-Content-Type-Options   "nosniff"     always;
    add_header X-XSS-Protection         "1; mode=block" always;
    add_header Referrer-Policy          "strict-origin-when-cross-origin" always;
    add_header Content-Security-Policy  "default-src 'self' https://fonts.googleapis.com https://fonts.gstatic.com; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src https://fonts.gstatic.com;" always;

    # Cache static assets
    location ~* \.(css|js|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf)$ {
        expires 7d;
        add_header Cache-Control "public, immutable";
        access_log off;
    }

    # Health check endpoint
    location /health {
        access_log off;
        return 200 'ok';
        add_header Content-Type text/plain;
    }

    # SPA fallback — serve index.html for all routes
    location / {
        try_files $uri $uri/ /index.html;
    }

    # Block hidden files (.git, .env, etc.)
    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
    }

    # Custom error pages
    error_page 404 /index.html;
    error_page 500 502 503 504 /index.html;

    # Logging
    access_log /var/log/nginx/vimninja_access.log;
    error_log  /var/log/nginx/vimninja_error.log warn;
}