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

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

    // Client-side form validation
    const form = document.querySelector('.needs-validation');
    if (form) {
        form.addEventListener('submit', function (event) {
            if (!form.checkValidity()) {
                event.preventDefault();
                event.stopPropagation();
            }
            form.classList.add('was-validated');
        }, false);
    }
});