script.js

const navToggle = document.querySelector('.nav-toggle');
const navLinks = document.querySelector('.nav-links');
const navItems = document.querySelectorAll('.nav-links a');

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

const sections = document.querySelectorAll('section[id]');
const setActiveLink = () => {
  let current = '';
  sections.forEach((section) => {
    const sectionTop = section.offsetTop - 120;
    if (window.scrollY >= sectionTop) {
      current = section.getAttribute('id');
    }
  });

  navItems.forEach((link) => {
    link.classList.toggle('active', link.getAttribute('href') === `#${current}`);
  });
};

window.addEventListener('scroll', setActiveLink);
setActiveLink();

const year = document.getElementById('year');
if (year) {
  year.textContent = new Date().getFullYear();
}