// Hamburger
const hamburger = document.getElementById('hamburger'), mobileMenu = document.getElementById('mobileMenu');
hamburger.addEventListener('click', function () { hamburger.classList.toggle('open'); mobileMenu.classList.toggle('open'); });
document.querySelectorAll('.mobile-nav-link').forEach(function (a) { a.addEventListener('click', function () { hamburger.classList.remove('open'); mobileMenu.classList.remove('open'); }); });

// Scroll reveal
const observer = new IntersectionObserver(function (entries) {
  entries.forEach(function (e) { if (e.isIntersecting) { e.target.classList.add('visible'); observer.unobserve(e.target); } });
}, { threshold: 0.1 });
document.querySelectorAll('.reveal').forEach(function (el) { observer.observe(el); });

// Active nav
const secObs = new IntersectionObserver(function (entries) {
  entries.forEach(function (e) { if (e.isIntersecting) { const id = e.target.id; document.querySelectorAll('.nav-links a[data-section]').forEach(function (a) { a.classList.toggle('active', a.dataset.section === id); }); } });
}, { rootMargin: '-40% 0px -55% 0px' });
['home', 'shop', 'about', 'faq', 'contact'].forEach(function (id) { const el = document.getElementById(id); if (el) secObs.observe(el); });

// FAQ card accordion
document.querySelectorAll('.faq-card-q').forEach(function (btn) {
  btn.addEventListener('click', function () {
    const card = this.closest('.faq-card');
    const isOpen = card.classList.contains('open');
    document.querySelectorAll('.faq-card.open').forEach(function (c) { c.classList.remove('open'); });
    if (!isOpen) card.classList.add('open');
  });
});

// Contact form
const contactForm = document.getElementById('contactForm');
if (contactForm) {
  contactForm.addEventListener('submit', function (e) {
    e.preventDefault();
    const btn = this.querySelector('.form-submit');
    btn.textContent = 'Message Sent ✓'; btn.style.background = 'var(--green)'; btn.style.borderColor = 'var(--green)'; btn.style.color = '#000';
    setTimeout(function () { btn.textContent = 'Send It ↗'; btn.style.background = btn.style.borderColor = btn.style.color = ''; }, 3000);
  });
}

// 3D cube float
const cube = document.getElementById('cube3d');
if (cube) {
  let t = 0;
  function floatCube() { t += 0.012; cube.style.marginTop = (Math.sin(t) * 12) + 'px'; requestAnimationFrame(floatCube); }
  floatCube();
}