document.addEventListener('DOMContentLoaded', function() {
    // Carousel functionality
    const carousel = document.getElementById('carousel');
    const prevBtn = document.getElementById('prevBtn');
    const nextBtn = document.getElementById('nextBtn');
    
    if (carousel && prevBtn && nextBtn) {
        let scrollAmount = 0;
        const scrollStep = 300;
        const maxScroll = carousel.scrollWidth - carousel.clientWidth;
        
        prevBtn.addEventListener('click', () => {
            scrollAmount = Math.max(scrollAmount - scrollStep, 0);
            carousel.scrollTo({
                left: scrollAmount,
                behavior: 'smooth'
            });
        });
        
        nextBtn.addEventListener('click', () => {
            scrollAmount = Math.min(scrollAmount + scrollStep, maxScroll);
            carousel.scrollTo({
                left: scrollAmount,
                behavior: 'smooth'
            });
        });
    }
    
    // Animate elements on scroll
    const animateOnScroll = () => {
        const elements = document.querySelectorAll('.fade-in, .slide-up');
        
        elements.forEach(element => {
            const elementPosition = element.getBoundingClientRect().top;
            const windowHeight = window.innerHeight;
            
            if (elementPosition < windowHeight - 100) {
                element.style.opacity = '1';
                element.style.transform = 'translateY(0)';
            }
        });
    };
    
    // Initial check
    animateOnScroll();
    
    // Check on scroll
    window.addEventListener('scroll', animateOnScroll);
    
    // Smooth scrolling for anchor links
    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
        anchor.addEventListener('click', function(e) {
            e.preventDefault();
            
            const targetId = this.getAttribute('href');
            if (targetId === '#') return;
            
            const targetElement = document.querySelector(targetId);
            if (targetElement) {
                window.scrollTo({
                    top: targetElement.offsetTop - 100,
                    behavior: 'smooth'
                });
            }
        });
    });
    
    // Form submission handling
    const contactForm = document.querySelector('form');
    if (contactForm) {
        contactForm.addEventListener('submit', function(e) {
            e.preventDefault();
            
            // Here you would typically send the form data to your server
            // For demo purposes, we'll just show a success message
            alert('Merci pour votre intérêt ! Nous vous contacterons dès que Marianne Compare sera disponible.');
            this.reset();
        });
    }
});