const navToggle = document.querySelector('.nav-toggle');
const navMenu = document.querySelector('#nav-menu');

if (navToggle && navMenu) {
  navToggle.addEventListener('click', () => {
    const isOpen = navMenu.classList.toggle('open');
    navToggle.setAttribute('aria-expanded', String(isOpen));
  });

  navMenu.querySelectorAll('a').forEach((link) => {
    link.addEventListener('click', () => {
      navMenu.classList.remove('open');
      navToggle.setAttribute('aria-expanded', 'false');
    });
  });
}

const revealEls = document.querySelectorAll('.reveal');
if ('IntersectionObserver' in window) {
  const io = new IntersectionObserver((entries) => {
    entries.forEach((entry) => {
      if (entry.isIntersecting) {
        entry.target.classList.add('in-view');
        io.unobserve(entry.target);
      }
    });
  }, { threshold: 0.12 });
  revealEls.forEach((el) => io.observe(el));
} else {
  revealEls.forEach((el) => el.classList.add('in-view'));
}