nginx.conf

server {
    listen 3000;
    server_name localhost;

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

    # Long-lived cache for hashed static assets
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
        root /usr/share/nginx/html;
        expires 1y;
        add_header Cache-Control "public, immutable";
        try_files $uri =404;
    }

    # Storybook at /storybook/ — must come before the catch-all
    location /storybook/ {
        root /usr/share/nginx/html;
        try_files $uri $uri/ /storybook/index.html;
    }

    # Landing page SPA at /
    location / {
        root /usr/share/nginx/html;
        try_files $uri $uri/ /index.html;
    }
}