// Main interactive functions for the website
document.addEventListener('DOMContentLoaded', function() {
    // Mobile menu toggle
    const mobileMenuButton = document.getElementById('mobile-menu-button');
    const mobileMenu = document.getElementById('mobile-menu');
    
    if (mobileMenuButton && mobileMenu) {
        mobileMenuButton.addEventListener('click', function() {
            mobileMenu.classList.toggle('hidden');
        });
    }

    // Image gallery modal
    const galleryModal = document.getElementById('gallery-modal');
    const modalImage = document.getElementById('modal-image');
    const closeModal = document.getElementById('close-modal');
    const galleryItems = document.querySelectorAll('.gallery-item');
    
    if (galleryModal) {
        galleryItems.forEach(item => {
            item.addEventListener('click', function() {
                const imgSrc = this.querySelector('img').src;
                modalImage.src = imgSrc;
                galleryModal.classList.remove('hidden');
                document.body.style.overflow = 'hidden';
            });
        });
        
        closeModal.addEventListener('click', function() {
            galleryModal.classList.add('hidden');
            document.body.style.overflow = 'auto';
        });
        
        galleryModal.addEventListener('click', function(e) {
            if (e.target === galleryModal) {
                galleryModal.classList.add('hidden');
                document.body.style.overflow = 'auto';
            }
        });
    }

    // Scroll to top button
    const scrollToTopBtn = document.getElementById('scroll-to-top');
    if (scrollToTopBtn) {
        window.addEventListener('scroll', function() {
            if (window.pageYOffset > 300) {
                scrollToTopBtn.classList.remove('hidden');
            } else {
                scrollToTopBtn.classList.add('hidden');
            }
        });
        
        scrollToTopBtn.addEventListener('click', function() {
            window.scrollTo({
                top: 0,
                behavior: 'smooth'
            });
        });
    }
});

// Form validation for contact form
function validateForm() {
    const name = document.getElementById('name').value.trim();
    const email = document.getElementById('email').value.trim();
    const message = document.getElementById('message').value.trim();
    
    if (name === '' || email === '' || message === '') {
        alert('Please fill in all fields');
        return false;
    }
    
    if (!/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(email)) {
        alert('Please enter a valid email address');
        return false;
    }
    
    return true;
}