<div class="sidebar" id="">
        <a href="<?php echo get_settings('home'); ?>"><img src="<?php bloginfo('template_directory'); ?>/_/img/logo.svg"></a>
        <nav>
            <!--
            <ul><?php
                $args = array(
                    'orderby'            => 'none',
                    'order'              => 'ASC',
                    'hide_empty'         => 0,
                    'use_desc_for_title' => 0,
                    'hierarchical'       => 1,
                    'title_li'           => '',
                    'taxonomy'           => 'project_category',
                );
                 wp_list_categories($args); ?>
            </ul>
        -->
                <?php //$current_term = get_query_var( 'term' ); echo $term;


                ?>
                <ul class="projectmenu">
                <?php

                    $custom_terms = get_terms('project_category', 'hide_empty=0');
                    $c = '0';
                    foreach($custom_terms as $custom_term) {
                        wp_reset_query();
                            $args = array('post_type' => 'project',
                                'tax_query' => array(
                                    array(
                                        'taxonomy' => 'project_category',
                                        'field' => 'slug',
                                        'terms' => $custom_term->slug,
                                    ),
                                ),
                            );

                    $loop = new WP_Query($args);
                        if($loop->have_posts()) {

                            $c++;

                            /*
                            ?>
                            <li><label for="<?php echo 'menu_'.$c.'';?>"><span><?php echo''.$custom_term->name.''; ?></span></label>
                            <input type="radio" name="category" id="<?php echo 'menu_'.$c.'';?>" value="your value" <?php if(isset($_POST['category'])) echo "checked='checked'"; ?>  />
                            <?php
                            */



                            echo '
                            <li><label for="menu_'.$c.'"><span>'.$custom_term->name.'</span></label>
                            <input type="radio" name="category" id="menu_'.$c.'" />
                            ';



                            ?>
                            <ul class="submenu">
                            <?php

                        while($loop->have_posts()) : $loop->the_post();
                            echo '<li><a href="'.get_permalink().'">'.get_the_title().'</a></li>';

                        endwhile;
                            ?>

                            </ul>
                            <?php
                        }
                        } // endif
                       // } //endif
                            ?>
                    </li>
                </ul>
             <!--
                <ul>
                    <li><a href="#">Fotografie</a></li>
                        <ul class="submenu">
                            <li><a href="#">long time no see</a></li>
                            <li><a href="#">on the rocks</a></li>
                            <li><a href="#">quite simple</a></li>
                            <li><a href="#">perfect day</a></li>
                        </ul>
                </ul>
            -->

                <?php wp_nav_menu(array('menu' => 'Hauptnavigation'));?>
            </nav>
      </div>