// 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'
        });
    });
});

// Header scroll effect
window.addEventListener('scroll', function() {
    const header = document.querySelector('header');
    if (window.scrollY > 50) {
        header.classList.add('bg-gray-900', 'shadow-lg');
        header.classList.remove('bg-transparent');
    } else {
        header.classList.add('bg-transparent');
        header.classList.remove('bg-gray-900', 'shadow-lg');
    }
});

// Animate elements when they come into view
const observerOptions = {
    root: null,
    rootMargin: '0px',
    threshold: 0.1
};

const observer = new IntersectionObserver((entries, observer) => {
    entries.forEach(entry => {
        if (entry.isIntersecting) {
            entry.target.classList.add('animate-fadeInUp');
            observer.unobserve(entry.target);
        }
    });
}, observerOptions);

document.querySelectorAll('.animate-on-scroll').forEach(el => {
    observer.observe(el);
});