/**
 * Portal 9 Style Template — header nav behavior
 */
(function () {
  const header = document.querySelector(".site-header");
  const menuToggle = document.querySelector(".menu-toggle");
  const navMain = document.querySelector(".nav-main");

  if (header) {
    window.addEventListener(
      "scroll",
      () => {
        header.classList.toggle("site-header--scrolled", window.scrollY > 40);
      },
      { passive: true }
    );
  }

  function setNavOpen(open) {
    if (!navMain || !menuToggle) return;
    navMain.classList.toggle("nav-open", open);
    menuToggle.setAttribute("aria-expanded", open ? "true" : "false");
    document.body.classList.toggle("nav-scroll-lock", open);
  }

  if (menuToggle && navMain) {
    menuToggle.addEventListener("click", () => {
      setNavOpen(!navMain.classList.contains("nav-open"));
    });

    navMain.querySelectorAll("a").forEach((link) => {
      link.addEventListener("click", () => {
        if (window.innerWidth <= 768) setNavOpen(false);
      });
    });
  }

  document.querySelectorAll(".nav-item--dropdown > .nav-dropdown-trigger").forEach((trigger) => {
    const parent = trigger.closest(".nav-item--dropdown");
    trigger.addEventListener("click", (e) => {
      if (window.innerWidth <= 768) {
        e.preventDefault();
        const open = parent.classList.toggle("is-open");
        trigger.setAttribute("aria-expanded", open);
      }
    });
  });

  document.addEventListener("click", (e) => {
    if (!e.target.closest(".nav-item--dropdown")) {
      document.querySelectorAll(".nav-item--dropdown.is-open").forEach((el) => {
        el.classList.remove("is-open");
        const t = el.querySelector(".nav-dropdown-trigger");
        if (t) t.setAttribute("aria-expanded", "false");
      });
    }
  });
})();