document.addEventListener('DOMContentLoaded', () => {
    const themeSwitch = document.querySelector('#checkbox');
    const body = document.body;

    const currentTheme = localStorage.getItem('theme');

    if (currentTheme) {
        body.classList.add(currentTheme);
        if (currentTheme === 'dark-mode') {
            themeSwitch.checked = true;
        }
    }

    themeSwitch.addEventListener('change', () => {
        if (themeSwitch.checked) {
            body.classList.add('dark-mode');
            localStorage.setItem('theme', 'dark-mode');
        } else {
            body.classList.remove('dark-mode');
            localStorage.setItem('theme', 'light-mode');
        }
    });
});