first commit

resources/styles/@core/template/skins/_bordered.scss

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+@use "sass:map";
+@use "@core-scss/base/mixins";
+@use "@configured-variables" as variables;
+
+$header: ".layout-navbar";
+
+@if variables.$layout-vertical-nav-navbar-is-contained {
+  $header: ".layout-navbar .navbar-content-container";
+}
+
+.skin--bordered {
+  .flatpickr-calendar {
+    border: 1px solid rgba(var(--v-border-color), var(--v-border-opacity));
+    box-shadow: none;
+  }
+
+  // select remove box shadow
+  .v-select__content,
+  .v-combobox__content,
+  .v-autocomplete__content {
+    box-shadow: none;
+  } 
+}

resources/styles/@core/template/skins/_index.scss

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+@use "bordered";