document.addEventListener('DOMContentLoaded', function () {
    const header = document.getElementById('site-header');
    const trigger = document.querySelector('.mobile-menu-trigger');
    const panel = document.querySelector('.mobile-menu-panel');
    const closeBtn = document.querySelector('.mobile-menu-close');

    // 스크롤 감지
    window.addEventListener('scroll', function() {
        if (window.scrollY > 50) {
            header.classList.add('scrolled');
        } else {
            header.classList.remove('scrolled');
        }
    });

    // 모바일 메뉴
    if (trigger && panel && closeBtn) {
        trigger.addEventListener('click', function () {
            panel.classList.add('active');
        });

        closeBtn.addEventListener('click', function () {
            panel.classList.remove('active');
        });
    }
});