/* ===== BOTON INSTALAR ===== */
let deferredPrompt;
const installBtn = document.getElementById('installBtn');
window.addEventListener('beforeinstallprompt', (e) => {
e.preventDefault();
deferredPrompt = e;
installBtn.style.display = 'block';
});
installBtn.addEventListener('click', async () => {
if (!deferredPrompt) return;
deferredPrompt.prompt();
await deferredPrompt.userChoice;
deferredPrompt = null;
installBtn.style.display = 'none';
});