frontend/src/index.js

import React from 'react';
import ReactDOM from 'react-dom/client';
import { ThemeProvider, createTheme } from '@mui/material/styles';
import CssBaseline from '@mui/material/CssBaseline';
import App from './App';

const darkTheme = createTheme({
  palette: {
    mode: 'dark',
    primary: {
      main: '#6366f1',
    },
    secondary: {
      main: '#10b981',
    },
    background: {
      default: '#0f0f23',
      paper: '#1a1a2e',
    },
  },
  typography: {
    fontFamily: '-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif',
  },
  shape: {
    borderRadius: 12,
  },
});

const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(
  <React.StrictMode>
    <ThemeProvider theme={darkTheme}>
      <CssBaseline />
      <App />
    </ThemeProvider>
  </React.StrictMode>
);