server {
    listen 80;
    server_name localhost;

    root /usr/share/nginx/html;
    index index.html;

    # Enable gzip compression
    gzip on;
    gzip_types text/html text/css application/javascript application/json;
    gzip_min_length 1000;

    location / {
        try_files $uri $uri/ /index.html;
    }

    # Cache static assets
    location ~* \.(js|css|html)$ {
        expires 1h;
        add_header Cache-Control "public, immutable";
    }
}