document.addEventListener('DOMContentLoaded', function() {
    // Language selector functionality
    const languageSelector = document.getElementById('language-selector');
    if (languageSelector) {
        languageSelector.addEventListener('change', function() {
            const form = document.createElement('form');
            form.method = 'POST';
            form.style.display = 'none';

            const input = document.createElement('input');
            input.type = 'hidden';
            input.name = 'language';
            input.value = this.value;

            form.appendChild(input);
            document.body.appendChild(form);
            form.submit();
        });
    }

    // Intersection Observer for animations
    const observer = new IntersectionObserver(
        (entries) => {
            entries.forEach((entry) => {
                if (entry.isIntersecting) {
                    entry.target.classList.add('slide-in');
                }
            });
        },
        { threshold: 0.1 }
    );

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

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