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

    // Smooth scrolling 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' });
            }
        });
    });

    // Newsletter form validation
    const newsletterForm = document.getElementById('newsletter-form');
    const newsletterSuccess = document.getElementById('newsletter-success');
    if (newsletterForm) {
        newsletterForm.addEventListener('submit', function (e) {
            e.preventDefault();
            const emailInput = newsletterForm.querySelector('input[type="email"]');
            if (emailInput.checkValidity()) {
                // Here you would typically send the email to your server
                newsletterSuccess.style.display = 'block';
                emailInput.value = ''; // Clear input
                setTimeout(() => { newsletterSuccess.style.display = 'none'; }, 5000);
            } else {
                emailInput.classList.add('is-invalid');
            }
        });

        // Remove validation error on input
        const emailInput = newsletterForm.querySelector('input[type="email"]');
        if(emailInput) {
            emailInput.addEventListener('input', () => {
                if (emailInput.classList.contains('is-invalid')) {
                    emailInput.classList.remove('is-invalid');
                }
            });
        }
    }
});