function toggleFaq(btn){var item=btn.closest('.faq-item');var isOpen=item.classList.contains('open');document.querySelectorAll('.faq-item.open').forEach(function(el){el.classList.remove('open');el.querySelector('.faq-question').setAttribute('aria-expanded','false');});if(!isOpen){item.classList.add('open');btn.setAttribute('aria-expanded','true');}};