diff --git a/DbFirst.BlazorWebApp/Components/CatalogsGrid.razor.css b/DbFirst.BlazorWebApp/Components/CatalogsGrid.razor.css
index 8fe4bee..0075267 100644
--- a/DbFirst.BlazorWebApp/Components/CatalogsGrid.razor.css
+++ b/DbFirst.BlazorWebApp/Components/CatalogsGrid.razor.css
@@ -1,49 +1,3 @@
-.action-panel {
-    margin-bottom: 16px;
-}
-.grid-section {
-    margin-top: 12px;
-}
-.catalog-edit-popup {
+.catalog-edit-popup {
     min-width: 720px;
 }
-.band-editor {
-    display: grid;
-    gap: 12px;
-    margin-bottom: 16px;
-}
-.band-controls {
-    display: flex;
-    flex-wrap: wrap;
-    gap: 8px;
-    align-items: center;
-}
-.band-row {
-    display: flex;
-    gap: 8px;
-    align-items: center;
-}
-.band-columns {
-    max-width: 720px;
-}
-.filter-row-cell {
-    display: flex;
-    align-items: center;
-    gap: 4px;
-    flex-wrap: wrap;
-}
-.filter-operator {
-    width: 52px;
-    min-width: 52px;
-    flex: 0 0 52px;
-}
-.filter-value {
-    min-width: 160px;
-    flex: 1 1 160px;
-}
-.loading-container {
-    min-height: 160px;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-}
\ No newline at end of file
diff --git a/DbFirst.BlazorWebApp/Components/MassDataGrid.razor.css b/DbFirst.BlazorWebApp/Components/MassDataGrid.razor.css
index 38c4618..f23def6 100644
--- a/DbFirst.BlazorWebApp/Components/MassDataGrid.razor.css
+++ b/DbFirst.BlazorWebApp/Components/MassDataGrid.razor.css
@@ -1,57 +1,3 @@
-.action-panel { 
-    margin-bottom: 16px;
-}
-.grid-section {
-    margin-top: 12px;
-}
-.pager-container {
-    display: flex;
-    justify-content: center;
-    margin-top: 12px;
-    margin-bottom: 16px;
-}
-.page-size-selector {
-    display: flex;
-    align-items: center;
-    gap: 8px;
-    flex-wrap: nowrap;
-}
-.page-size-label {
-    white-space: nowrap;
-}
-.page-size-combo {
-    width: 13ch;
-    min-width: 13ch;
-    max-width: 13ch;
-}
-.page-size-combo input {
-    text-align: left;
-}
-.massdata-edit-popup {
+.massdata-edit-popup {
     min-width: 720px;
 }
-.band-editor {
-    display: grid;
-    gap: 12px;
-    margin-bottom: 16px;
-}
-.band-controls {
-    display: flex;
-    flex-wrap: wrap;
-    gap: 8px;
-    align-items: center;
-}
-.band-row {
-    display: flex;
-    gap: 8px;
-    align-items: center;
-}
-.band-columns {
-    max-width: 720px;
-}
-.loading-container {
-    min-height: 160px;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-}
\ No newline at end of file
diff --git a/DbFirst.BlazorWebApp/wwwroot/app.css b/DbFirst.BlazorWebApp/wwwroot/app.css
index 2260ae3..8d5012b 100644
--- a/DbFirst.BlazorWebApp/wwwroot/app.css
+++ b/DbFirst.BlazorWebApp/wwwroot/app.css
@@ -27,7 +27,7 @@ a, .btn-link {
 }
 
 .btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
-  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
+    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
 }
 
 .content {
@@ -51,7 +51,7 @@ h1:focus {
 }
 
 .blazor-error-boundary {
-    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
+    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
     padding: 1rem 1rem 1rem 3.7rem;
     color: white;
 }
@@ -63,3 +63,76 @@ h1:focus {
 .darker-border-checkbox.form-check-input {
     border-color: #929292;
 }
+
+/* Grid Band-Editor */
+.band-editor {
+    display: flex;
+    flex-direction: column;
+    gap: 12px;
+    padding: 12px;
+    margin-top: 4px;
+    margin-bottom: 16px;
+    border: 1px solid #dee2e6;
+    border-radius: 4px;
+    background-color: #f8f9fa;
+}
+
+.band-controls {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 8px;
+    align-items: center;
+}
+
+.band-row {
+    display: flex;
+    gap: 8px;
+    align-items: center;
+}
+
+.band-columns {
+    max-width: 720px;
+    margin-top: 4px;
+}
+
+.grid-section {
+    margin-top: 4px;
+}
+
+/* MassData-spezifisch */
+.page-size-selector {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    flex-wrap: nowrap;
+    margin-bottom: 12px;
+}
+
+.page-size-label {
+    white-space: nowrap;
+}
+
+.page-size-combo {
+    width: 13ch;
+    min-width: 13ch;
+    max-width: 13ch;
+}
+
+    .page-size-combo input {
+        text-align: left;
+    }
+
+.pager-container {
+    display: flex;
+    justify-content: center;
+    margin-top: 12px;
+    margin-bottom: 16px;
+}
+
+/* Lade-Spinner */
+.loading-container {
+    min-height: 160px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}