// Theme handling
function getPreferredTheme() {
    if (localStorage.getItem('theme') === 'dark' || 
        (!localStorage.getItem('theme') && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
        return 'dark';
    }
    return 'light';
}

function setTheme(theme) {
    if (theme === 'dark') {
        document.documentElement.classList.add('dark');
    } else {
        document.documentElement.classList.remove('dark');
    }
    localStorage.setItem('theme', theme);
}

function toggleTheme() {
    const isDark = document.documentElement.classList.contains('dark');
    setTheme(isDark ? 'light' : 'dark');
}

// Initialize theme
if (getPreferredTheme() === 'dark') {
    setTheme('dark');
}

// Add click event listener
document.addEventListener('DOMContentLoaded', () => {
    const darkModeToggle = document.getElementById('darkModeToggle');
    if (darkModeToggle) {
        darkModeToggle.addEventListener('click', toggleTheme);
    }
});

// Watch for system theme changes
window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', (e) => {
    if (!localStorage.getItem('theme')) {
        setTheme(e.matches ? 'dark' : 'light');
    }
});