document.addEventListener('DOMContentLoaded', function() {
    const burgerBtn = document.getElementById('burger-btn');
    const mobileMenu = document.getElementById('mobile-menu');
    let isMenuOpen = false;

    function toggleMenu() {
        isMenuOpen = !isMenuOpen;
        const icon = burgerBtn.querySelector('i');
        
        if (isMenuOpen) {
            mobileMenu.classList.remove('hidden');
            mobileMenu.style.maxHeight = '400px';
            mobileMenu.style.opacity = '1';
            
            if (icon) {
                icon.setAttribute('data-lucide', 'x');
                lucide.createIcons();
            }
            burgerBtn.setAttribute('aria-expanded', 'true');
        } else {
            mobileMenu.style.maxHeight = '0';
            mobileMenu.style.opacity = '0';
            setTimeout(() => {
                mobileMenu.classList.add('hidden');
            }, 300);
            
            if (icon) {
                icon.setAttribute('data-lucide', 'menu');
                lucide.createIcons();
            }
            burgerBtn.setAttribute('aria-expanded', 'false');
        }
    }

    if (burgerBtn && mobileMenu) {
        burgerBtn.addEventListener('click', function(e) {
            e.stopPropagation();
            toggleMenu();
        });

        
        const mobileLinks = mobileMenu.querySelectorAll('a');
        mobileLinks.forEach(link => {
            link.addEventListener('click', function() {
                toggleMenu();
            });
        });

        
        document.addEventListener('click', function(e) {
            if (isMenuOpen && !mobileMenu.contains(e.target) && !burgerBtn.contains(e.target)) {
                toggleMenu();
            }
        });

        
        window.addEventListener('resize', function() {
            if (window.innerWidth >= 768 && isMenuOpen) {
                toggleMenu();
            }
        });
    }

    
    const header = document.querySelector('header');
    if (header) {
        window.addEventListener('scroll', function() {
            if (window.scrollY > 10) {
                header.classList.add('shadow-lg');
                header.classList.remove('shadow-md');
            } else {
                header.classList.add('shadow-md');
                header.classList.remove('shadow-lg');
            }
        });
    }

    
    const dateInput = document.getElementById('date');
    if (dateInput) {
        const today = new Date().toISOString().split('T')[0];
        dateInput.setAttribute('min', today);
    }
});