document.addEventListener('DOMContentLoaded', function () {
    var item = document.querySelector('.nav-axes-item');
    if (!item) return;

    var trigger  = item.querySelector('.nav-axes-trigger');
    var mainMenu = document.querySelector('.main-menu');

    trigger.addEventListener('click', function (e) {
        e.stopPropagation();
        var isOpen = item.classList.toggle('is-open');
        trigger.setAttribute('aria-expanded', isOpen ? 'true' : 'false');
    });

    // Close when clicking outside
    document.addEventListener('click', function (e) {
        if (!item.contains(e.target)) {
            item.classList.remove('is-open');
            trigger.setAttribute('aria-expanded', 'false');
        }
    });

    // Reset when main menu closes
    if (mainMenu) {
        var observer = new MutationObserver(function () {
            if (!mainMenu.classList.contains('active')) {
                item.classList.remove('is-open');
                trigger.setAttribute('aria-expanded', 'false');
            }
        });
        observer.observe(mainMenu, { attributes: true, attributeFilter: ['class'] });
    }
});