sincos.cc-website/website/static/js/nav.js

(function () {
  "use strict";
  document.addEventListener("DOMContentLoaded", function () {
    var toggle = document.getElementById("navToggle");
    var nav = document.getElementById("mainNav");
    if (toggle && nav) {
      toggle.addEventListener("click", function () {
        nav.classList.toggle("open");
      });
      document.addEventListener("click", function (e) {
        if (!nav.contains(e.target) && !toggle.contains(e.target)) {
          nav.classList.remove("open");
        }
      });
    }

    var items = document.querySelectorAll(".nav-item.has-dropdown");
    items.forEach(function (item) {
      var caret = item.querySelector(".nav-caret");
      if (!caret) return;
      caret.addEventListener("click", function (e) {
        e.preventDefault();
        e.stopPropagation();
        var wasOpen = item.classList.contains("open");
        items.forEach(function (x) { x.classList.remove("open"); });
        if (!wasOpen) item.classList.add("open");
      });
    });

    document.addEventListener("click", function (e) {
      if (e.target.closest(".nav-item")) return;
      items.forEach(function (x) { x.classList.remove("open"); });
    });
  });
})();