frontend/src/main.tsx

import { StrictMode } from 'react';
import { createRoot } from 'react-dom/client';
import { ThemeProvider } from '@mui/material/styles';
import CssBaseline from '@mui/material/CssBaseline';
import App from './App';
import { darkTheme, lightTheme } from './theme';
import { useLayoutStore } from './store/layoutStore';

function Root() {
  const themeMode = useLayoutStore((s) => s.themeMode);
  const theme = themeMode === 'light' ? lightTheme : darkTheme;

  return (
    <ThemeProvider theme={theme}>
      <CssBaseline />
      <App />
    </ThemeProvider>
  );
}

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