document.addEventListener('DOMContentLoaded', function () {
    // Navbar shrink on scroll
    const navbar = document.querySelector('.navbar');
    window.addEventListener('scroll', () => {
        if (window.scrollY > 50) {
            navbar.classList.add('navbar-scrolled');
        } else {
            navbar.classList.remove('navbar-scrolled');
        }
    });

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

    // Contact form validation
    const form = document.querySelector('#contactForm');
    form.addEventListener('submit', function (e) {
        if (!form.checkValidity()) {
            e.preventDefault();
            e.stopPropagation();
        }
        form.classList.add('was-validated');
    }, false);
});