design: compact admin topbar to high density desktop ERP layout

TaxBaik.Web/Components/Admin/Layout/MainLayout.razor

@@ -10,9 +10,9 @@
                        Edge="Edge.Start"
                        Class="admin-menu-button"
                        OnClick="@ToggleDrawer" />
-        <div class="admin-topbar-title">
-            <MudText Typo="Typo.caption" Color="Color.Secondary">TaxBaik Admin</MudText>
-            <MudText Typo="Typo.h6">세무회계 관리 대시보드</MudText>
+        <div class="admin-topbar-title" style="display: flex; align-items: center; gap: 8px;">
+            <MudText Typo="Typo.body2" Class="font-weight-bold" Style="color: var(--primary-color);">[TaxBaik]</MudText>
+            <MudText Typo="Typo.body2" Style="font-weight: bold; color: #1E293B;">세무회계 관리 대시보드</MudText>
         </div>
         <MudSpacer />
 

TaxBaik.Web/wwwroot/css/admin.css

@@ -445,11 +445,12 @@ textarea:focus-visible {
   display: flex;
   align-items: center;
   gap: 12px;
-  padding: 6px 16px;
+  padding: 0px 12px;
+  height: 38px !important;
   background-color: var(--bg-primary);
   border-bottom: 1px solid var(--border-color);
   z-index: var(--z-dropdown);
-  box-shadow: var(--shadow-xs);
+  box-shadow: none !important;
 }
 
 .admin-menu-button {