server.js

const http = require('http');
const fs = require('fs');
const path = require('path');

const PORT = 3000;
const HOST = 'localhost';

const server = http.createServer((req, res) => {
  let filePath = path.join(__dirname, req.url === '/' ? 'index.html' : req.url);
  
  fs.readFile(filePath, (err, data) => {
    if (err) {
      res.writeHead(404, { 'Content-Type': 'text/plain' });
      res.end('404 Not Found');
      return;
    }

    const ext = path.extname(filePath);
    const mimeTypes = {
      '.html': 'text/html',
      '.js': 'text/javascript',
      '.json': 'application/json',
      '.css': 'text/css',
      '.png': 'image/png',
      '.svg': 'image/svg+xml'
    };

    const contentType = mimeTypes[ext] || 'application/octet-stream';
    res.writeHead(200, { 'Content-Type': contentType });
    res.end(data);
  });
});

server.listen(PORT, HOST, () => {
  console.log(`\n✅ Servidor local iniciado:`);
  console.log(`🌐 http://${HOST}:${PORT}`);
  console.log(`\nCtrl+C para detener\n`);
});