custom darkmode shortcode with 2 text

function custom_dark_mode_toggle_shortcode() {
    ob_start();
    $checked = isset( $_COOKIE['darkmode'] ) && $_COOKIE['darkmode'] === 'true' ? 'checked' : '';
    ?>
    <div class="jeg_nav_item jeg_dark_mode custom-dark-mode">
        <h3 class="dark-mode-text">Dark Mode</h3>
        <h3 class="light-mode-text">Light Mode</h3>
        <label class="dark_mode_switch">
            <input aria-label="Dark mode toggle" type="checkbox" class="jeg_dark_mode_toggle" <?php echo $checked; ?>>
            <span class="slider round"></span>
        </label>
    </div>
    <?php
    return ob_get_clean();
}
add_shortcode( 'custom_dark_toggle', 'custom_dark_mode_toggle_shortcode' );