document.addEventListener('DOMContentLoaded', function () {
	var animatedItems = document.querySelectorAll('.fade-in');

	if ('IntersectionObserver' in window) {
		var observer = new IntersectionObserver(
			function (entries) {
				entries.forEach(function (entry) {
					if (entry.isIntersecting) {
						entry.target.classList.add('visible');
						observer.unobserve(entry.target);
					}
				});
			},
			{ threshold: 0.12, rootMargin: '0px 0px -40px 0px' }
		);

		animatedItems.forEach(function (item) {
			observer.observe(item);
		});
	} else {
		animatedItems.forEach(function (item) {
			item.classList.add('visible');
		});
	}

	var timerMinutes = document.getElementById('minutes');
	var timerSeconds = document.getElementById('seconds');
	if (timerMinutes && timerSeconds) {
		var totalSeconds = parseInt(timerMinutes.textContent || '0', 10) * 60 + parseInt(timerSeconds.textContent || '0', 10);
		if (!Number.isNaN(totalSeconds) && totalSeconds > 0) {
			window.setInterval(function () {
				totalSeconds = Math.max(totalSeconds - 1, 0);
				var minutes = Math.floor(totalSeconds / 60);
				var seconds = totalSeconds % 60;
				timerMinutes.textContent = String(minutes).padStart(2, '0');
				timerSeconds.textContent = String(seconds).padStart(2, '0');
			}, 1000);
		}
	}

	var topBurgerMenu = document.getElementById('topBurgerMenu');
	var topSiteNav = document.getElementById('topSiteNav');

	if (topBurgerMenu && topSiteNav) {
		topBurgerMenu.addEventListener('click', function () {
			var expanded = topBurgerMenu.classList.toggle('active');
			topSiteNav.classList.toggle('active', expanded);
			topBurgerMenu.setAttribute('aria-expanded', expanded ? 'true' : 'false');
		});

		topSiteNav.querySelectorAll('a').forEach(function (link) {
			link.addEventListener('click', function () {
				topBurgerMenu.classList.remove('active');
				topSiteNav.classList.remove('active');
				topBurgerMenu.setAttribute('aria-expanded', 'false');
			});
		});
	}

	var faqItems = document.querySelectorAll('.faq-item');
	faqItems.forEach(function (item) {
		var trigger = item.querySelector('.faq-question');
		if (!trigger) return;

		trigger.addEventListener('click', function () {
			var isActive = item.classList.contains('active');
			faqItems.forEach(function (faqItem) {
				if (faqItem !== item) {
					faqItem.classList.remove('active');
				}
			});
			item.classList.toggle('active', !isActive);
		});
	});

	var pageFaqItems = document.querySelectorAll('.page-faq-item');
	pageFaqItems.forEach(function (item) {
		var trigger = item.querySelector('.page-faq-question');
		if (!trigger) return;

		trigger.addEventListener('click', function () {
			var isActive = item.classList.contains('active');
			pageFaqItems.forEach(function (faqItem) {
				faqItem.classList.remove('active');
			});
			if (!isActive) {
				item.classList.add('active');
			}
		});
	});
});