document.addEventListener('DOMContentLoaded', () => {
    // Mobile menu toggle
    const mobileMenuBtn = document.getElementById('mobile-menu-btn');
    const mobileMenu = document.getElementById('mobile-menu');
    
    if (mobileMenuBtn && mobileMenu) {
        mobileMenuBtn.addEventListener('click', () => {
            mobileMenu.classList.toggle('hidden');
        });
        
        // Close mobile menu when clicking a link
        mobileMenu.querySelectorAll('a').forEach(link => {
            link.addEventListener('click', () => {
                mobileMenu.classList.add('hidden');
            });
        });
    }
    
    // Navbar scroll effect
    const navbar = document.getElementById('navbar');
    let lastScroll = 0;
    
    window.addEventListener('scroll', () => {
        const currentScroll = window.pageYOffset;
        
        if (currentScroll > 100) {
            navbar.classList.add('shadow-md');
        } else {
            navbar.classList.remove('shadow-md');
        }
        
        lastScroll = currentScroll;
    });
    
    // Animation for cards on page load
    const cards = document.querySelectorAll('.group, .bg-white');
    cards.forEach((card, index) => {
        card.style.opacity = '0';
        card.style.transform = 'translateY(20px)';
        
        setTimeout(() => {
            card.style.transition = 'opacity 0.5s ease, transform 0.5s ease';
            card.style.opacity = '1';
            card.style.transform = 'translateY(0)';
        }, 100 * index);
    });
    
    // Smooth scroll for anchor links
    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
        anchor.addEventListener('click', function(e) {
            e.preventDefault();
            const target = document.querySelector(this.getAttribute('href'));
            if (target) {
                target.scrollIntoView({
                    behavior: 'smooth',
                    block: 'start'
                });
            }
        });
    });
    
    // Form submission handling
    const form = document.querySelector('form');
    if (form) {
        form.addEventListener('submit', (e) => {
            e.preventDefault();
            const email = form.querySelector('input[type="email"]').value;
            if (email) {
                alert('Thank you! We will contact you shortly to schedule your free session.');
                form.reset();
            }
        });
    }
});