(function () {
    var key = 'databaselist-ui-theme';
    var mode = 'system';
    try {
        mode = localStorage.getItem(key) || 'system';
    } catch (e) {}
    var resolved = mode === 'system'
        ? (window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light')
        : (mode === 'light' ? 'light' : 'dark');
    document.documentElement.setAttribute('data-theme-pref', mode);
    document.documentElement.setAttribute('data-theme', resolved);
})();