script.js

const menuButton = document.querySelector(".menu-toggle");
const navigation = document.querySelector(".site-nav");
const navigationLinks = document.querySelectorAll(".site-nav a");

function closeMenu() {
  if (!navigation || !menuButton) {
    return;
  }

  navigation.classList.remove("is-open");
  document.body.classList.remove("menu-open");
  menuButton.setAttribute("aria-expanded", "false");
}

if (menuButton && navigation) {
  menuButton.addEventListener("click", () => {
    const isOpen = navigation.classList.toggle("is-open");
    document.body.classList.toggle("menu-open", isOpen);
    menuButton.setAttribute("aria-expanded", String(isOpen));
  });
}

navigationLinks.forEach((link) => {
  link.addEventListener("click", closeMenu);
});

window.addEventListener("keydown", (event) => {
  if (event.key === "Escape") {
    closeMenu();
  }
});