// Shared JavaScript functions
document.addEventListener('DOMContentLoaded', function() {
    // Smooth scrolling for anchor links
    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
        anchor.addEventListener('click', function (e) {
            e.preventDefault();
            document.querySelector(this.getAttribute('href')).scrollIntoView({
                behavior: 'smooth'
            });
        });
    });

    // Add animation classes to elements
    const animateElements = document.querySelectorAll('.fade-in, .slide-up');
    animateElements.forEach(el => {
        el.style.opacity = '0';
    });

    const observer = new IntersectionObserver((entries) => {
        entries.forEach(entry => {
            if (entry.isIntersecting) {
                entry.target.classList.add(entry.target.dataset.animation || 'fade-in');
                entry.target.style.opacity = '1';
                observer.unobserve(entry.target);
            }
        });
    }, { threshold: 0.1 });

    animateElements.forEach(el => {
        observer.observe(el);
    });
});