edit ..

themes/contrib/estore/css/styles.css

@@ -746,6 +746,7 @@ input[type=number] {
 .menu--category-menu.product {
   /* overflow:auto; */
   /* max-height: 785px; */
+  padding-bottom: 40px;
 }
 .menu--category-menu.product  ul.sidebar-submenu-2{
   position: relative;
@@ -13416,10 +13417,15 @@ a {
 .search-product .col {
   padding: 10px;
 }
+#views-bootstrap-products-page-list .col{
+  padding-right: 10px;
+    padding-left: 10px;
+}
 .views-view-grid article.commerce-product.teaser{
   box-shadow: 0px 0px 7px 0px rgba(0,0,0,.21);
   overflow: hidden;
   margin-bottom: 15px;
+  padding: 5px;
 
 }
 .search-product .product-wrapper{
@@ -13460,6 +13466,7 @@ header.navbar .category-menu ul.menu li.less-category{
 }
 .menu--category-menu.product ul.sidebar-submenu-2 li a{
   line-height: initial !important;
+  white-space: normal;
 }
 .menu--category-menu .open ul.sidebar-submenu-2 li a{
   line-height: 1.5;

themes/contrib/estore/js/custom.js

@@ -65,13 +65,13 @@ for (i = 0; i < acc.length; i++) {
 
     if(current == "/products"){
       $(".menu.menu--category-menu.nav").removeClass('hide-block').removeClass('not-home').addClass('product');
-      $(".main-container").height($(".menu.menu--category-menu.nav").height()+70);
+      $(".main-container").height($(".menu.menu--category-menu.nav").height()+110);
     }
     else if(current.length >= 16){
       let currentpathSlice = current.slice(0,17);
       if(currentpathSlice == "/product_category" || currentpathSlice == "/search-products"){
         $(".menu.menu--category-menu.nav").removeClass('hide-block').removeClass('not-home').addClass('product');
-      $(".main-container").height($(".menu.menu--category-menu.nav").height()+70);
+      $(".main-container").height($(".menu.menu--category-menu.nav").height()+110);
 
       }
     }

themes/contrib/estore/templates/system/page.html.twig

@@ -226,7 +226,7 @@
       {# Sidebar First #}
       {% if page.sidebar_first %}
         {% block sidebar_first %}
-          <aside class="col-sm-3" role="complementary">
+          <aside class="col-sm-12 col-md-3" role="complementary">
             {{ page.sidebar_first }}
           </aside>
         {% endblock %}
@@ -236,8 +236,8 @@
       {%
         set content_classes = [
           page.sidebar_first and page.sidebar_second ? 'col-sm-6',
-          page.sidebar_first and page.sidebar_second is empty ? 'col-sm-9',
-          page.sidebar_second and page.sidebar_first is empty ? 'col-sm-9',
+          page.sidebar_first and page.sidebar_second is empty ? 'col-sm-12 col-md-9',
+          page.sidebar_second and page.sidebar_first is empty ? 'col-md-9 col-sm-12',
           page.sidebar_first is empty and page.sidebar_second is empty ? 'col-sm-12'
         ]
       %}