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

    // Intersection Observer for scroll animations
    const observerOptions = {
        threshold: 0.1,
        rootMargin: '0px 0px -50px 0px'
    };

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

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

    // Theme switcher (placeholder for future functionality)
    const themeSwitcher = document.getElementById('theme-switcher');
    if (themeSwitcher) {
        themeSwitcher.addEventListener('click', function() {
            document.documentElement.classList.toggle('dark');
            const isDark = document.documentElement.classList.contains('dark');
            localStorage.setItem('darkMode', isDark);
        });
    }
});