let playwright
try {
  playwright = await import('playwright')
} catch (e) {
  console.error('\nPlaywright no está instalado en este entorno.');
  console.error('Instálalo con: npm install -D playwright (en la raíz del repo) y luego ejecuta: npx playwright install');
  process.exitCode = 2
  throw e
}

const { chromium } = playwright;

(async () => {
  const browser = await chromium.launch({ headless: true });
  const page = await browser.newPage();
  try {
    // Target studio-panel dev server on port 3021
    await page.goto('http://localhost:3021/', { waitUntil: 'networkidle' , timeout: 15000});
    const sheets = await page.evaluate(() => Array.from(document.styleSheets).map(s => s.href || s.ownerNode?.textContent?.slice(0,250) || null));
    console.log('document.styleSheets count =', sheets.length);
    console.log(JSON.stringify(sheets, null, 2));
  } catch (e) {
    console.error('Error:', e.toString());
    process.exitCode = 2;
  } finally {
    await browser.close();
  }
})();