document.addEventListener('DOMContentLoaded', function() {
    // Smooth scrolling 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'
                });
            }
        });
    });

    // Theme toggle functionality
    const themeToggle = document.getElementById('theme-toggle');
    if (themeToggle) {
        themeToggle.addEventListener('click', function() {
            const html = document.documentElement;
            if (html.classList.contains('dark')) {
                html.classList.remove('dark');
                localStorage.setItem('theme', 'light');
            } else {
                html.classList.add('dark');
                localStorage.setItem('theme', 'dark');
            }
        });
    }

    // Check for saved theme preference
    if (localStorage.getItem('theme') === 'dark' || 
        (!localStorage.getItem('theme') && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
        document.documentElement.classList.add('dark');
    } else {
        document.documentElement.classList.remove('dark');
    }
});