first upload all files

Themes/Storefront/resources/assets/public/sass/app.scss

@@ -0,0 +1,77 @@
+$grid-columns: 18;
+
+@import
+    '~bootstrap/scss/bootstrap',
+    '~line-awesome/dist/line-awesome/scss/line-awesome',
+    '~jquery-nice-select/scss/nice-select',
+    '~animate.css/animate',
+    '~slick-carousel/slick/slick',
+    '~slick-carousel/slick/slick-theme',
+    '~slick-lightbox/src/styles/slick-lightbox',
+    '~kbw-countdown/src/css/jquery.countdown',
+    '~nouislider/distribute/nouislider',
+    '~flatpickr/dist/flatpickr';
+
+@import
+    'utils/_variables',
+    'utils/_utilities',
+    'utils/_common';
+
+@import
+    'base/_reset',
+    'base/_typography',
+    'base/_carousel';
+
+@import
+    'components/_custom-select',
+    'components/_mega-menu',
+    'components/_tabs',
+    'components/_buttons',
+    'components/_scrollbar',
+    'components/_countdown',
+    'components/_breadcrumb',
+    'components/_form',
+    'components/_alert',
+    'components/_table',
+    'components/_badge',
+    'components/_panel',
+    'components/_pagination',
+    'components/_loader',
+    'components/_modal',
+    'components/_toast';
+
+@import
+    'layout/_top-nav',
+    'layout/_header',
+    'layout/_sidebar-menu',
+    'layout/_sidebar-cart',
+    'layout/_navigation',
+    'layout/_landscape-products',
+    'layout/_steps',
+    'layout/_order-summary',
+    'layout/_subscribe',
+    'layout/_newsletter',
+    'layout/_cookie-bar',
+    'layout/_footer';
+
+@import
+    'pages/_home',
+    'pages/_login',
+    'pages/_register',
+    'pages/_account',
+    'pages/_contact',
+    'pages/_compare',
+    'pages/_product-search',
+    'pages/_product-details',
+    'pages/_cart',
+    'pages/_checkout',
+    'pages/_order-complete',
+    'pages/_all-brands',
+    'pages/_all-categories',
+    'pages/_order-details',
+    'pages/_404',
+    'pages/_custom-page';
+
+[v-cloak] {
+    display: none !important;
+}