document.addEventListener("DOMContentLoaded", () => {
  // Functions
  function expandNav() {
    expandedNav.classList.add("open");

    burgerBtn.setAttribute("aria-expanded", true);
    closeNavBtn.setAttribute("aria-expanded", true);
  }
  function closeNav() {
    expandedNav.classList.remove("open");

    burgerBtn.setAttribute("aria-expanded", false);
    closeNavBtn.setAttribute("aria-expanded", false);
  }

  // Variables
  const burgerBtn = document.querySelector(".burger-btn");
  const closeNavBtn = document.querySelector(".expanded-nav .close-btn");
  const expandedNav = document.querySelector(".expanded-nav");

  // Listeners
  burgerBtn.addEventListener("click", expandNav);
  closeNavBtn.addEventListener("click", closeNav);
});