import { StrictMode } from 'react';
import { createRoot } from 'react-dom/client';
import { BrowserRouter } from 'react-router';
import App from './App';
import './index.css';

// Register service worker for offline caching (supports 5k+ users)
if ('serviceWorker' in navigator && import.meta.env.PROD) {
  window.addEventListener('load', () => {
    navigator.serviceWorker.register('/sw.js').catch(() => {});
  });
}

createRoot(document.getElementById('root')!).render(
  <StrictMode>
    <BrowserRouter>
      <App />
    </BrowserRouter>
  </StrictMode>
);