diff --git a/adminfront/src/features/api-keys/ApiKeyListPage.tsx b/adminfront/src/features/api-keys/ApiKeyListPage.tsx
index 9e67663e..aa45ade1 100644
--- a/adminfront/src/features/api-keys/ApiKeyListPage.tsx
+++ b/adminfront/src/features/api-keys/ApiKeyListPage.tsx
@@ -63,8 +63,8 @@ function ApiKeyListPage() {
   };
 
   return (
-    <div className="space-y-8">
-      <header className="flex flex-wrap items-start justify-between gap-4">
+    <div className="space-y-6 flex flex-col h-[calc(100vh-theme(spacing.32))]">
+      <header className="flex flex-wrap items-start justify-between gap-4 flex-shrink-0">
         <div className="space-y-2">
           <div className="flex items-center gap-2 text-sm text-[var(--color-muted)]">
             <span>
@@ -103,8 +103,8 @@ function ApiKeyListPage() {
         </div>
       </header>
 
-      <Card className="bg-[var(--color-panel)]">
-        <CardHeader className="flex flex-row items-center justify-between">
+      <Card className="bg-[var(--color-panel)] flex-1 flex flex-col min-h-0 overflow-hidden">
+        <CardHeader className="flex flex-row items-center justify-between flex-shrink-0">
           <div>
             <CardTitle>
               {t("ui.admin.api_keys.list.registry.title", "API Key Registry")}
@@ -119,95 +119,102 @@ function ApiKeyListPage() {
           </div>
           <Badge variant="muted">{t("ui.common.badge.system", "System")}</Badge>
         </CardHeader>
-        <CardContent>
+        <CardContent className="flex-1 flex flex-col min-h-0 pt-0">
           {(errorMsg || fallbackError) && (
             <div className="mb-4 rounded-lg border border-destructive/40 bg-destructive/10 px-3 py-2 text-sm text-destructive">
               {errorMsg ?? fallbackError}
             </div>
           )}
 
-          <Table>
-            <TableHeader>
-              <TableRow>
-                <TableHead>
-                  {t("ui.admin.api_keys.list.table.name", "NAME")}
-                </TableHead>
-                <TableHead>
-                  {t("ui.admin.api_keys.list.table.client_id", "CLIENT ID")}
-                </TableHead>
-                <TableHead>
-                  {t("ui.admin.api_keys.list.table.scopes", "SCOPES")}
-                </TableHead>
-                <TableHead>
-                  {t("ui.admin.api_keys.list.table.last_used", "LAST USED")}
-                </TableHead>
-                <TableHead className="text-right">
-                  {t("ui.admin.api_keys.list.table.actions", "ACTIONS")}
-                </TableHead>
-              </TableRow>
-            </TableHeader>
-            <TableBody>
-              {query.isLoading && (
-                <TableRow>
-                  <TableCell colSpan={5}>
-                    {t("msg.common.loading", "로딩 중...")}
-                  </TableCell>
-                </TableRow>
-              )}
-              {!query.isLoading && items.length === 0 && (
-                <TableRow>
-                  <TableCell colSpan={5}>
-                    {t(
-                      "msg.admin.api_keys.list.empty",
-                      "등록된 API 키가 없습니다.",
-                    )}
-                  </TableCell>
-                </TableRow>
-              )}
-              {items.map((key) => (
-                <TableRow key={key.id}>
-                  <TableCell className="font-semibold">
-                    <div className="flex items-center gap-2">
-                      <Key size={14} className="text-[var(--color-muted)]" />
-                      {key.name}
-                    </div>
-                  </TableCell>
-                  <TableCell>
-                    <code>{key.client_id}</code>
-                  </TableCell>
-                  <TableCell>
-                    <div className="flex flex-wrap gap-1">
-                      {key.scopes.map((scope) => (
-                        <Badge
-                          key={scope}
-                          variant="muted"
-                          className="text-[10px]"
+          <div className="flex-1 rounded-md border overflow-hidden flex flex-col">
+            <div className="flex-1 overflow-auto relative custom-scrollbar">
+              <Table>
+                <TableHeader className="sticky top-0 bg-muted/90 backdrop-blur z-10 shadow-sm">
+                  <TableRow>
+                    <TableHead>
+                      {t("ui.admin.api_keys.list.table.name", "NAME")}
+                    </TableHead>
+                    <TableHead>
+                      {t("ui.admin.api_keys.list.table.client_id", "CLIENT ID")}
+                    </TableHead>
+                    <TableHead>
+                      {t("ui.admin.api_keys.list.table.scopes", "SCOPES")}
+                    </TableHead>
+                    <TableHead>
+                      {t("ui.admin.api_keys.list.table.last_used", "LAST USED")}
+                    </TableHead>
+                    <TableHead className="text-right">
+                      {t("ui.admin.api_keys.list.table.actions", "ACTIONS")}
+                    </TableHead>
+                  </TableRow>
+                </TableHeader>
+                <TableBody>
+                  {query.isLoading && (
+                    <TableRow>
+                      <TableCell colSpan={5}>
+                        {t("msg.common.loading", "로딩 중...")}
+                      </TableCell>
+                    </TableRow>
+                  )}
+                  {!query.isLoading && items.length === 0 && (
+                    <TableRow>
+                      <TableCell colSpan={5}>
+                        {t(
+                          "msg.admin.api_keys.list.empty",
+                          "등록된 API 키가 없습니다.",
+                        )}
+                      </TableCell>
+                    </TableRow>
+                  )}
+                  {items.map((key) => (
+                    <TableRow key={key.id}>
+                      <TableCell className="font-semibold">
+                        <div className="flex items-center gap-2">
+                          <Key
+                            size={14}
+                            className="text-[var(--color-muted)]"
+                          />
+                          {key.name}
+                        </div>
+                      </TableCell>
+                      <TableCell>
+                        <code>{key.client_id}</code>
+                      </TableCell>
+                      <TableCell>
+                        <div className="flex flex-wrap gap-1">
+                          {key.scopes.map((scope) => (
+                            <Badge
+                              key={scope}
+                              variant="muted"
+                              className="text-[10px]"
+                            >
+                              {scope}
+                            </Badge>
+                          ))}
+                        </div>
+                      </TableCell>
+                      <TableCell>
+                        {key.lastUsedAt
+                          ? new Date(key.lastUsedAt).toLocaleString("ko-KR")
+                          : t("ui.common.never", "Never")}
+                      </TableCell>
+                      <TableCell className="text-right">
+                        <Button
+                          variant="outline"
+                          size="sm"
+                          onClick={() => handleDelete(key.id, key.name)}
+                          disabled={deleteMutation.isPending}
                         >
-                          {scope}
-                        </Badge>
-                      ))}
-                    </div>
-                  </TableCell>
-                  <TableCell>
-                    {key.lastUsedAt
-                      ? new Date(key.lastUsedAt).toLocaleString("ko-KR")
-                      : t("ui.common.never", "Never")}
-                  </TableCell>
-                  <TableCell className="text-right">
-                    <Button
-                      variant="outline"
-                      size="sm"
-                      onClick={() => handleDelete(key.id, key.name)}
-                      disabled={deleteMutation.isPending}
-                    >
-                      <Trash2 size={14} />
-                      {t("ui.common.delete", "삭제")}
-                    </Button>
-                  </TableCell>
-                </TableRow>
-              ))}
-            </TableBody>
-          </Table>
+                          <Trash2 size={14} />
+                          {t("ui.common.delete", "삭제")}
+                        </Button>
+                      </TableCell>
+                    </TableRow>
+                  ))}
+                </TableBody>
+              </Table>
+            </div>
+          </div>
         </CardContent>
       </Card>
     </div>
diff --git a/adminfront/src/features/tenants/routes/TenantAdminsAndOwnersTab.tsx b/adminfront/src/features/tenants/routes/TenantAdminsAndOwnersTab.tsx
index 56112c98..3ac0f505 100644
--- a/adminfront/src/features/tenants/routes/TenantAdminsAndOwnersTab.tsx
+++ b/adminfront/src/features/tenants/routes/TenantAdminsAndOwnersTab.tsx
@@ -207,260 +207,266 @@ export function TenantAdminsAndOwnersTab() {
         );
 
   return (
-    <div className="space-y-8 mt-6">
-      {/* Owners Card */}
-      <Card className="border-none shadow-sm bg-[var(--color-panel)]">
-        <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-7">
-          <div className="space-y-1">
-            <CardTitle className="text-2xl font-bold flex items-center gap-2">
-              <Crown className="h-6 w-6 text-yellow-500" />
-              {t("ui.admin.tenants.owners.title", "테넌트 소유자")}
-            </CardTitle>
-            <CardDescription className="text-muted-foreground">
-              {t(
-                "msg.admin.tenants.owners.subtitle",
-                "이 테넌트의 최상위 권한을 가진 소유자(조직장) 목록입니다.",
-              )}
-            </CardDescription>
-          </div>
-          <Button
-            className="bg-primary text-primary-foreground hover:bg-primary/90"
-            onClick={() => setDialogMode("owner")}
-          >
-            <UserPlus className="mr-2 h-4 w-4" />
-            {t("ui.admin.tenants.owners.add_button", "소유자 추가")}
-          </Button>
-        </CardHeader>
-        <CardContent>
-          <div className="rounded-xl border border-border overflow-hidden">
-            <Table>
-              <TableHeader className="bg-muted/30">
-                <TableRow>
-                  <TableHead className="w-[250px] font-bold">
-                    {t("ui.admin.tenants.owners.table_name", "이름")}
-                  </TableHead>
-                  <TableHead className="font-bold">
-                    {t("ui.admin.tenants.owners.table_email", "이메일")}
-                  </TableHead>
-                  <TableHead className="text-right font-bold w-[100px]">
-                    {t("ui.admin.tenants.owners.table_actions", "액션")}
-                  </TableHead>
-                </TableRow>
-              </TableHeader>
-              <TableBody>
-                {ownersQuery.isLoading ? (
-                  <TableRow>
-                    <TableCell colSpan={3} className="h-32 text-center">
-                      <div className="animate-spin rounded-full h-6 w-6 border-b-2 border-primary mx-auto" />
-                    </TableCell>
-                  </TableRow>
-                ) : currentOwners.length === 0 ? (
-                  <TableRow>
-                    <TableCell
-                      colSpan={3}
-                      className="h-32 text-center text-muted-foreground"
-                    >
-                      <div className="flex flex-col items-center gap-2">
-                        <Users className="h-8 w-8 opacity-20" />
-                        <p>
-                          {t(
-                            "msg.admin.tenants.owners.empty",
-                            "등록된 소유자가 없습니다.",
-                          )}
-                        </p>
-                      </div>
-                    </TableCell>
-                  </TableRow>
-                ) : (
-                  currentOwners.map((owner) => (
-                    <TableRow
-                      key={owner.id}
-                      className="hover:bg-muted/30 transition-colors group"
-                    >
-                      <TableCell className="font-medium">
-                        <div className="flex items-center gap-3">
-                          <div className="h-8 w-8 rounded-lg bg-secondary flex items-center justify-center text-secondary-foreground font-bold text-xs">
-                            {owner.name.charAt(0)}
-                          </div>
-                          <span>{owner.name}</span>
-                        </div>
-                      </TableCell>
-                      <TableCell className="text-muted-foreground italic">
-                        {owner.email}
-                      </TableCell>
-                      <TableCell className="text-right">
-                        <Button
-                          variant="ghost"
-                          size="icon"
-                          className={`opacity-0 group-hover:opacity-100 transition-all ${
-                            owner.id === currentUserId ||
-                            currentOwners.length <= 1
-                              ? "opacity-50 cursor-not-allowed"
-                              : "text-destructive hover:text-destructive hover:bg-destructive/10"
-                          }`}
-                          onClick={() =>
-                            handleRemoveOwner(owner.id, owner.name)
-                          }
-                          disabled={
-                            removeOwnerMutation.isPending ||
-                            owner.id === currentUserId ||
-                            currentOwners.length <= 1
-                          }
-                          title={
-                            owner.id === currentUserId
-                              ? t(
-                                  "msg.admin.tenants.owners.remove_self",
-                                  "본인의 권한은 회수할 수 없습니다.",
-                                )
-                              : currentOwners.length <= 1
-                                ? t(
-                                    "msg.admin.tenants.owners.remove_last",
-                                    "마지막 소유자는 회수할 수 없습니다.",
-                                  )
-                                : t(
-                                    "ui.admin.tenants.owners.remove_title",
-                                    "소유자 권한 회수",
-                                  )
-                          }
-                        >
-                          <Trash2 className="h-4 w-4" />
-                        </Button>
-                      </TableCell>
-                    </TableRow>
-                  ))
+    <div className="space-y-8 mt-6 flex flex-col h-[calc(100vh-theme(spacing.32))]">
+      <div className="flex-1 flex flex-col lg:flex-row gap-8 min-h-0">
+        {/* Owners Card */}
+        <Card className="flex-1 flex flex-col min-h-0 border-none shadow-sm bg-[var(--color-panel)]">
+          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-7 flex-shrink-0">
+            <div className="space-y-1">
+              <CardTitle className="text-2xl font-bold flex items-center gap-2">
+                <Crown className="h-6 w-6 text-yellow-500" />
+                {t("ui.admin.tenants.owners.title", "테넌트 소유자")}
+              </CardTitle>
+              <CardDescription className="text-muted-foreground">
+                {t(
+                  "msg.admin.tenants.owners.subtitle",
+                  "이 테넌트의 최상위 권한을 가진 소유자(조직장) 목록입니다.",
                 )}
-              </TableBody>
-            </Table>
-          </div>
-        </CardContent>
-      </Card>
+              </CardDescription>
+            </div>
+            <Button
+              className="bg-primary text-primary-foreground hover:bg-primary/90"
+              onClick={() => setDialogMode("owner")}
+            >
+              <UserPlus className="mr-2 h-4 w-4" />
+              {t("ui.admin.tenants.owners.add_button", "소유자 추가")}
+            </Button>
+          </CardHeader>
+          <CardContent className="flex-1 flex flex-col min-h-0 pt-0">
+            <div className="flex-1 rounded-md border overflow-hidden flex flex-col">
+              <div className="flex-1 overflow-auto relative custom-scrollbar">
+                <Table>
+                  <TableHeader className="sticky top-0 bg-muted/90 backdrop-blur z-10 shadow-sm">
+                    <TableRow>
+                      <TableHead className="w-[250px] font-bold">
+                        {t("ui.admin.tenants.owners.table_name", "이름")}
+                      </TableHead>
+                      <TableHead className="font-bold">
+                        {t("ui.admin.tenants.owners.table_email", "이메일")}
+                      </TableHead>
+                      <TableHead className="text-right font-bold w-[100px]">
+                        {t("ui.admin.tenants.owners.table_actions", "액션")}
+                      </TableHead>
+                    </TableRow>
+                  </TableHeader>
+                  <TableBody>
+                    {ownersQuery.isLoading ? (
+                      <TableRow>
+                        <TableCell colSpan={3} className="h-32 text-center">
+                          <div className="animate-spin rounded-full h-6 w-6 border-b-2 border-primary mx-auto" />
+                        </TableCell>
+                      </TableRow>
+                    ) : currentOwners.length === 0 ? (
+                      <TableRow>
+                        <TableCell
+                          colSpan={3}
+                          className="h-32 text-center text-muted-foreground"
+                        >
+                          <div className="flex flex-col items-center gap-2">
+                            <Users className="h-8 w-8 opacity-20" />
+                            <p>
+                              {t(
+                                "msg.admin.tenants.owners.empty",
+                                "등록된 소유자가 없습니다.",
+                              )}
+                            </p>
+                          </div>
+                        </TableCell>
+                      </TableRow>
+                    ) : (
+                      currentOwners.map((owner) => (
+                        <TableRow
+                          key={owner.id}
+                          className="hover:bg-muted/30 transition-colors group"
+                        >
+                          <TableCell className="font-medium">
+                            <div className="flex items-center gap-3">
+                              <div className="h-8 w-8 rounded-lg bg-secondary flex items-center justify-center text-secondary-foreground font-bold text-xs">
+                                {owner.name.charAt(0)}
+                              </div>
+                              <span>{owner.name}</span>
+                            </div>
+                          </TableCell>
+                          <TableCell className="text-muted-foreground italic">
+                            {owner.email}
+                          </TableCell>
+                          <TableCell className="text-right">
+                            <Button
+                              variant="ghost"
+                              size="icon"
+                              className={`opacity-0 group-hover:opacity-100 transition-all ${
+                                owner.id === currentUserId ||
+                                currentOwners.length <= 1
+                                  ? "opacity-50 cursor-not-allowed"
+                                  : "text-destructive hover:text-destructive hover:bg-destructive/10"
+                              }`}
+                              onClick={() =>
+                                handleRemoveOwner(owner.id, owner.name)
+                              }
+                              disabled={
+                                removeOwnerMutation.isPending ||
+                                owner.id === currentUserId ||
+                                currentOwners.length <= 1
+                              }
+                              title={
+                                owner.id === currentUserId
+                                  ? t(
+                                      "msg.admin.tenants.owners.remove_self",
+                                      "본인의 권한은 회수할 수 없습니다.",
+                                    )
+                                  : currentOwners.length <= 1
+                                    ? t(
+                                        "msg.admin.tenants.owners.remove_last",
+                                        "마지막 소유자는 회수할 수 없습니다.",
+                                      )
+                                    : t(
+                                        "ui.admin.tenants.owners.remove_title",
+                                        "소유자 권한 회수",
+                                      )
+                              }
+                            >
+                              <Trash2 className="h-4 w-4" />
+                            </Button>
+                          </TableCell>
+                        </TableRow>
+                      ))
+                    )}
+                  </TableBody>
+                </Table>
+              </div>
+            </div>
+          </CardContent>
+        </Card>
 
-      {/* Admins Card */}
-      <Card className="border-none shadow-sm bg-[var(--color-panel)]">
-        <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-7">
-          <div className="space-y-1">
-            <CardTitle className="text-2xl font-bold flex items-center gap-2">
-              <ShieldCheck className="h-6 w-6 text-primary" />
-              {t("ui.admin.tenants.admins.title", "테넌트 관리자")}
-            </CardTitle>
-            <CardDescription className="text-muted-foreground">
-              {t(
-                "msg.admin.tenants.admins.subtitle",
-                "이 테넌트의 자원을 관리할 수 있는 사용자 목록입니다.",
-              )}
-            </CardDescription>
-          </div>
-          <Button
-            className="bg-primary text-primary-foreground hover:bg-primary/90"
-            onClick={() => setDialogMode("admin")}
-          >
-            <UserPlus className="mr-2 h-4 w-4" />
-            {t("ui.admin.tenants.admins.add_button", "관리자 추가")}
-          </Button>
-        </CardHeader>
-        <CardContent>
-          <div className="rounded-xl border border-border overflow-hidden">
-            <Table>
-              <TableHeader className="bg-muted/30">
-                <TableRow>
-                  <TableHead className="w-[250px] font-bold">
-                    {t("ui.admin.tenants.admins.table_name", "이름")}
-                  </TableHead>
-                  <TableHead className="font-bold">
-                    {t("ui.admin.tenants.admins.table_email", "이메일")}
-                  </TableHead>
-                  <TableHead className="text-right font-bold w-[100px]">
-                    {t("ui.admin.tenants.admins.table_actions", "액션")}
-                  </TableHead>
-                </TableRow>
-              </TableHeader>
-              <TableBody>
-                {adminsQuery.isLoading ? (
-                  <TableRow>
-                    <TableCell colSpan={3} className="h-32 text-center">
-                      <div className="animate-spin rounded-full h-6 w-6 border-b-2 border-primary mx-auto" />
-                    </TableCell>
-                  </TableRow>
-                ) : currentAdmins.length === 0 ? (
-                  <TableRow>
-                    <TableCell
-                      colSpan={3}
-                      className="h-32 text-center text-muted-foreground"
-                    >
-                      <div className="flex flex-col items-center gap-2">
-                        <Users className="h-8 w-8 opacity-20" />
-                        <p>
-                          {t(
-                            "msg.admin.tenants.admins.empty",
-                            "등록된 관리자가 없습니다.",
-                          )}
-                        </p>
-                      </div>
-                    </TableCell>
-                  </TableRow>
-                ) : (
-                  currentAdmins.map((admin) => (
-                    <TableRow
-                      key={admin.id}
-                      className="hover:bg-muted/30 transition-colors group"
-                    >
-                      <TableCell className="font-medium">
-                        <div className="flex items-center gap-3">
-                          <div className="h-8 w-8 rounded-lg bg-secondary flex items-center justify-center text-secondary-foreground font-bold text-xs">
-                            {admin.name.charAt(0)}
-                          </div>
-                          <span>{admin.name}</span>
-                        </div>
-                      </TableCell>
-                      <TableCell className="text-muted-foreground italic">
-                        {admin.email}
-                      </TableCell>
-                      <TableCell className="text-right">
-                        <Button
-                          variant="ghost"
-                          size="icon"
-                          className={`opacity-0 group-hover:opacity-100 transition-all ${
-                            admin.id === currentUserId ||
-                            currentAdmins.length <= 1
-                              ? "opacity-50 cursor-not-allowed"
-                              : "text-destructive hover:text-destructive hover:bg-destructive/10"
-                          }`}
-                          onClick={() =>
-                            handleRemoveAdmin(admin.id, admin.name)
-                          }
-                          disabled={
-                            removeAdminMutation.isPending ||
-                            admin.id === currentUserId ||
-                            currentAdmins.length <= 1
-                          }
-                          title={
-                            admin.id === currentUserId
-                              ? t(
-                                  "msg.admin.tenants.admins.remove_self",
-                                  "본인의 권한은 회수할 수 없습니다.",
-                                )
-                              : currentAdmins.length <= 1
-                                ? t(
-                                    "msg.admin.tenants.admins.remove_last",
-                                    "마지막 관리자는 회수할 수 없습니다.",
-                                  )
-                                : t(
-                                    "ui.admin.tenants.admins.remove_title",
-                                    "관리자 권한 회수",
-                                  )
-                          }
-                        >
-                          <Trash2 className="h-4 w-4" />
-                        </Button>
-                      </TableCell>
-                    </TableRow>
-                  ))
+        {/* Admins Card */}
+        <Card className="flex-1 flex flex-col min-h-0 border-none shadow-sm bg-[var(--color-panel)]">
+          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-7 flex-shrink-0">
+            <div className="space-y-1">
+              <CardTitle className="text-2xl font-bold flex items-center gap-2">
+                <ShieldCheck className="h-6 w-6 text-primary" />
+                {t("ui.admin.tenants.admins.title", "테넌트 관리자")}
+              </CardTitle>
+              <CardDescription className="text-muted-foreground">
+                {t(
+                  "msg.admin.tenants.admins.subtitle",
+                  "이 테넌트의 자원을 관리할 수 있는 사용자 목록입니다.",
                 )}
-              </TableBody>
-            </Table>
-          </div>
-        </CardContent>
-      </Card>
+              </CardDescription>
+            </div>
+            <Button
+              className="bg-primary text-primary-foreground hover:bg-primary/90"
+              onClick={() => setDialogMode("admin")}
+            >
+              <UserPlus className="mr-2 h-4 w-4" />
+              {t("ui.admin.tenants.admins.add_button", "관리자 추가")}
+            </Button>
+          </CardHeader>
+          <CardContent className="flex-1 flex flex-col min-h-0 pt-0">
+            <div className="flex-1 rounded-md border overflow-hidden flex flex-col">
+              <div className="flex-1 overflow-auto relative custom-scrollbar">
+                <Table>
+                  <TableHeader className="sticky top-0 bg-muted/90 backdrop-blur z-10 shadow-sm">
+                    <TableRow>
+                      <TableHead className="w-[250px] font-bold">
+                        {t("ui.admin.tenants.admins.table_name", "이름")}
+                      </TableHead>
+                      <TableHead className="font-bold">
+                        {t("ui.admin.tenants.admins.table_email", "이메일")}
+                      </TableHead>
+                      <TableHead className="text-right font-bold w-[100px]">
+                        {t("ui.admin.tenants.admins.table_actions", "액션")}
+                      </TableHead>
+                    </TableRow>
+                  </TableHeader>
+                  <TableBody>
+                    {adminsQuery.isLoading ? (
+                      <TableRow>
+                        <TableCell colSpan={3} className="h-32 text-center">
+                          <div className="animate-spin rounded-full h-6 w-6 border-b-2 border-primary mx-auto" />
+                        </TableCell>
+                      </TableRow>
+                    ) : currentAdmins.length === 0 ? (
+                      <TableRow>
+                        <TableCell
+                          colSpan={3}
+                          className="h-32 text-center text-muted-foreground"
+                        >
+                          <div className="flex flex-col items-center gap-2">
+                            <Users className="h-8 w-8 opacity-20" />
+                            <p>
+                              {t(
+                                "msg.admin.tenants.admins.empty",
+                                "등록된 관리자가 없습니다.",
+                              )}
+                            </p>
+                          </div>
+                        </TableCell>
+                      </TableRow>
+                    ) : (
+                      currentAdmins.map((admin) => (
+                        <TableRow
+                          key={admin.id}
+                          className="hover:bg-muted/30 transition-colors group"
+                        >
+                          <TableCell className="font-medium">
+                            <div className="flex items-center gap-3">
+                              <div className="h-8 w-8 rounded-lg bg-secondary flex items-center justify-center text-secondary-foreground font-bold text-xs">
+                                {admin.name.charAt(0)}
+                              </div>
+                              <span>{admin.name}</span>
+                            </div>
+                          </TableCell>
+                          <TableCell className="text-muted-foreground italic">
+                            {admin.email}
+                          </TableCell>
+                          <TableCell className="text-right">
+                            <Button
+                              variant="ghost"
+                              size="icon"
+                              className={`opacity-0 group-hover:opacity-100 transition-all ${
+                                admin.id === currentUserId ||
+                                currentAdmins.length <= 1
+                                  ? "opacity-50 cursor-not-allowed"
+                                  : "text-destructive hover:text-destructive hover:bg-destructive/10"
+                              }`}
+                              onClick={() =>
+                                handleRemoveAdmin(admin.id, admin.name)
+                              }
+                              disabled={
+                                removeAdminMutation.isPending ||
+                                admin.id === currentUserId ||
+                                currentAdmins.length <= 1
+                              }
+                              title={
+                                admin.id === currentUserId
+                                  ? t(
+                                      "msg.admin.tenants.admins.remove_self",
+                                      "본인의 권한은 회수할 수 없습니다.",
+                                    )
+                                  : currentAdmins.length <= 1
+                                    ? t(
+                                        "msg.admin.tenants.admins.remove_last",
+                                        "마지막 관리자는 회수할 수 없습니다.",
+                                      )
+                                    : t(
+                                        "ui.admin.tenants.admins.remove_title",
+                                        "관리자 권한 회수",
+                                      )
+                              }
+                            >
+                              <Trash2 className="h-4 w-4" />
+                            </Button>
+                          </TableCell>
+                        </TableRow>
+                      ))
+                    )}
+                  </TableBody>
+                </Table>
+              </div>
+            </div>
+          </CardContent>
+        </Card>
+      </div>
 
       {/* Common Dialog for adding users */}
       <Dialog
diff --git a/adminfront/src/features/tenants/routes/TenantGroupsPage.tsx b/adminfront/src/features/tenants/routes/TenantGroupsPage.tsx
index a2518662..f53f90b3 100644
--- a/adminfront/src/features/tenants/routes/TenantGroupsPage.tsx
+++ b/adminfront/src/features/tenants/routes/TenantGroupsPage.tsx
@@ -343,11 +343,11 @@ function TenantGroupsPage() {
   const currentGroup = groupsQuery.data?.find((g) => g.id === selectedGroupId);
 
   return (
-    <div className="space-y-6 mt-6">
-      <div className="grid gap-6 md:grid-cols-3">
+    <div className="space-y-6 mt-6 flex flex-col h-[calc(100vh-theme(spacing.32))]">
+      <div className="grid gap-6 md:grid-cols-3 flex-1 min-h-0">
         {/* 그룹 생성 폼 */}
-        <Card className="bg-[var(--color-panel)] md:col-span-1 border-primary/20">
-          <CardHeader>
+        <Card className="flex flex-col min-h-0 bg-[var(--color-panel)] md:col-span-1 border-primary/20">
+          <CardHeader className="flex-shrink-0">
             <CardTitle className="text-sm flex items-center gap-2">
               <Plus size={16} />{" "}
               {t("ui.admin.groups.create.title", "새 그룹 생성")}
@@ -359,7 +359,7 @@ function TenantGroupsPage() {
               )}
             </CardDescription>
           </CardHeader>
-          <CardContent className="space-y-4">
+          <CardContent className="space-y-4 flex-1 overflow-auto">
             <div className="space-y-1">
               <Label htmlFor="name">
                 {t("ui.admin.groups.form.name_label", "그룹 이름")}
@@ -431,8 +431,8 @@ function TenantGroupsPage() {
         </Card>
 
         {/* 그룹 목록 (트리 뷰) */}
-        <Card className="bg-[var(--color-panel)] md:col-span-2">
-          <CardHeader className="flex flex-row items-center justify-between">
+        <Card className="flex flex-col min-h-0 bg-[var(--color-panel)] md:col-span-2">
+          <CardHeader className="flex flex-row items-center justify-between flex-shrink-0">
             <div>
               <CardTitle>
                 {t("ui.admin.groups.list.title", "User Groups")}
@@ -458,76 +458,80 @@ function TenantGroupsPage() {
               </Button>
             </div>
           </CardHeader>
-          <CardContent>
-            <Table>
-              <TableHeader>
-                <TableRow>
-                  <TableHead>
-                    {t("ui.admin.groups.table.name", "NAME")}
-                  </TableHead>
-                  <TableHead>
-                    {t("ui.admin.groups.table.members", "MEMBERS")}
-                  </TableHead>
-                  <TableHead className="text-right">
-                    {t("ui.admin.groups.table.actions", "ACTIONS")}
-                  </TableHead>
-                </TableRow>
-              </TableHeader>
-              <TableBody>
-                {groupsQuery.isLoading && (
-                  <TableRow>
-                    <TableCell colSpan={3}>
-                      {t("msg.admin.groups.list.loading", "로딩 중...")}
-                    </TableCell>
-                  </TableRow>
-                )}
-                {!groupsQuery.isLoading && groupTree.length === 0 && (
-                  <TableRow>
-                    <TableCell
-                      colSpan={3}
-                      className="text-center py-8 text-muted-foreground"
-                    >
-                      {t(
-                        "msg.admin.groups.list.empty",
-                        "아직 등록된 그룹이 없습니다.",
-                      )}
-                    </TableCell>
-                  </TableRow>
-                )}
-                {groupTree.map((node) => (
-                  <UserGroupTreeNode
-                    key={node.id}
-                    node={node}
-                    level={0}
-                    onSelect={setSelectedGroupId}
-                    selectedGroupId={selectedGroupId}
-                    onDelete={(id) => {
-                      if (
-                        window.confirm(
-                          t(
-                            "msg.admin.groups.list.delete_confirm",
-                            "그룹을 삭제하시겠습니까?",
-                          ),
-                        )
-                      ) {
-                        deleteMutation.mutate(id);
-                      }
-                    }}
-                    onAddSubGroup={handleAddSubGroup}
-                    addMemberMutation={addMemberMutation}
-                    removeMemberMutation={removeMemberMutation}
-                  />
-                ))}
-              </TableBody>
-            </Table>
+          <CardContent className="flex-1 flex flex-col min-h-0 pt-0">
+            <div className="flex-1 rounded-md border overflow-hidden flex flex-col">
+              <div className="flex-1 overflow-auto relative custom-scrollbar">
+                <Table>
+                  <TableHeader className="sticky top-0 bg-muted/90 backdrop-blur z-10 shadow-sm">
+                    <TableRow>
+                      <TableHead>
+                        {t("ui.admin.groups.table.name", "NAME")}
+                      </TableHead>
+                      <TableHead>
+                        {t("ui.admin.groups.table.members", "MEMBERS")}
+                      </TableHead>
+                      <TableHead className="text-right">
+                        {t("ui.admin.groups.table.actions", "ACTIONS")}
+                      </TableHead>
+                    </TableRow>
+                  </TableHeader>
+                  <TableBody>
+                    {groupsQuery.isLoading && (
+                      <TableRow>
+                        <TableCell colSpan={3}>
+                          {t("msg.admin.groups.list.loading", "로딩 중...")}
+                        </TableCell>
+                      </TableRow>
+                    )}
+                    {!groupsQuery.isLoading && groupTree.length === 0 && (
+                      <TableRow>
+                        <TableCell
+                          colSpan={3}
+                          className="text-center py-8 text-muted-foreground"
+                        >
+                          {t(
+                            "msg.admin.groups.list.empty",
+                            "아직 등록된 그룹이 없습니다.",
+                          )}
+                        </TableCell>
+                      </TableRow>
+                    )}
+                    {groupTree.map((node) => (
+                      <UserGroupTreeNode
+                        key={node.id}
+                        node={node}
+                        level={0}
+                        onSelect={setSelectedGroupId}
+                        selectedGroupId={selectedGroupId}
+                        onDelete={(id) => {
+                          if (
+                            window.confirm(
+                              t(
+                                "msg.admin.groups.list.delete_confirm",
+                                "그룹을 삭제하시겠습니까?",
+                              ),
+                            )
+                          ) {
+                            deleteMutation.mutate(id);
+                          }
+                        }}
+                        onAddSubGroup={handleAddSubGroup}
+                        addMemberMutation={addMemberMutation}
+                        removeMemberMutation={removeMemberMutation}
+                      />
+                    ))}
+                  </TableBody>
+                </Table>
+              </div>
+            </div>
           </CardContent>
         </Card>
       </div>
 
       {/* 멤버 관리 섹션 (선택된 그룹이 있을 때) */}
       {currentGroup && (
-        <Card className="bg-[var(--color-panel)] border-t-4 border-t-primary">
-          <CardHeader>
+        <Card className="flex flex-col min-h-0 flex-1 bg-[var(--color-panel)] border-t-4 border-t-primary">
+          <CardHeader className="flex-shrink-0">
             <CardTitle className="flex items-center gap-2">
               <Shield size={18} className="text-primary" />
               {t("msg.admin.groups.members.title", "[{{name}}] 멤버 관리", {
@@ -541,8 +545,8 @@ function TenantGroupsPage() {
               )}
             </CardDescription>
           </CardHeader>
-          <CardContent>
-            <div className="flex justify-end mb-4">
+          <CardContent className="flex-1 flex flex-col min-h-0 pt-0">
+            <div className="flex justify-end mb-4 flex-shrink-0">
               <Button
                 size="sm"
                 onClick={() => handleAddMember(currentGroup.id)}
@@ -552,56 +556,65 @@ function TenantGroupsPage() {
                 {t("ui.common.add", "멤버 추가")}
               </Button>
             </div>
-            <Table>
-              <TableHeader>
-                <TableRow>
-                  <TableHead>
-                    {t("ui.admin.groups.members.table.name", "이름")}
-                  </TableHead>
-                  <TableHead>
-                    {t("ui.admin.groups.members.table.email", "이메일")}
-                  </TableHead>
-                  <TableHead className="text-right">
-                    {t("ui.admin.groups.members.table.remove", "제거")}
-                  </TableHead>
-                </TableRow>
-              </TableHeader>
-              <TableBody>
-                {currentGroup.members?.length === 0 && (
-                  <TableRow>
-                    <TableCell
-                      colSpan={3}
-                      className="text-center py-4 text-muted-foreground"
-                    >
-                      {t("msg.admin.groups.members.empty", "멤버가 없습니다.")}
-                    </TableCell>
-                  </TableRow>
-                )}
-                {currentGroup.members?.map((user) => (
-                  <TableRow key={user.id}>
-                    <TableCell className="font-medium">{user.name}</TableCell>
-                    <TableCell className="text-muted-foreground">
-                      {user.email}
-                    </TableCell>
-                    <TableCell className="text-right">
-                      <Button
-                        variant="ghost"
-                        size="sm"
-                        onClick={() =>
-                          removeMemberMutation.mutate({
-                            groupId: currentGroup.id,
-                            userId: user.id,
-                          })
-                        }
-                        disabled={removeMemberMutation.isPending}
-                      >
-                        <UserMinus size={14} className="text-destructive" />
-                      </Button>
-                    </TableCell>
-                  </TableRow>
-                ))}
-              </TableBody>
-            </Table>
+            <div className="flex-1 rounded-md border overflow-hidden flex flex-col">
+              <div className="flex-1 overflow-auto relative custom-scrollbar">
+                <Table>
+                  <TableHeader className="sticky top-0 bg-muted/90 backdrop-blur z-10 shadow-sm">
+                    <TableRow>
+                      <TableHead>
+                        {t("ui.admin.groups.members.table.name", "이름")}
+                      </TableHead>
+                      <TableHead>
+                        {t("ui.admin.groups.members.table.email", "이메일")}
+                      </TableHead>
+                      <TableHead className="text-right">
+                        {t("ui.admin.groups.members.table.remove", "제거")}
+                      </TableHead>
+                    </TableRow>
+                  </TableHeader>
+                  <TableBody>
+                    {currentGroup.members?.length === 0 && (
+                      <TableRow>
+                        <TableCell
+                          colSpan={3}
+                          className="text-center py-4 text-muted-foreground"
+                        >
+                          {t(
+                            "msg.admin.groups.members.empty",
+                            "멤버가 없습니다.",
+                          )}
+                        </TableCell>
+                      </TableRow>
+                    )}
+                    {currentGroup.members?.map((user) => (
+                      <TableRow key={user.id}>
+                        <TableCell className="font-medium">
+                          {user.name}
+                        </TableCell>
+                        <TableCell className="text-muted-foreground">
+                          {user.email}
+                        </TableCell>
+                        <TableCell className="text-right">
+                          <Button
+                            variant="ghost"
+                            size="sm"
+                            onClick={() =>
+                              removeMemberMutation.mutate({
+                                groupId: currentGroup.id,
+                                userId: user.id,
+                              })
+                            }
+                            disabled={removeMemberMutation.isPending}
+                          >
+                            <UserMinus size={14} className="text-destructive" />
+                          </Button>
+                        </TableCell>
+                      </TableRow>
+                    ))}
+                  </TableBody>
+                </Table>
+              </div>
+            </div>
           </CardContent>
         </Card>
       )}
diff --git a/adminfront/src/features/tenants/routes/TenantListPage.tsx b/adminfront/src/features/tenants/routes/TenantListPage.tsx
index d1aa14e6..a434ee14 100644
--- a/adminfront/src/features/tenants/routes/TenantListPage.tsx
+++ b/adminfront/src/features/tenants/routes/TenantListPage.tsx
@@ -116,8 +116,8 @@ function TenantListPage() {
   };
 
   return (
-    <div className="space-y-8">
-      <header className="flex flex-wrap items-start justify-between gap-4">
+    <div className="space-y-6 flex flex-col h-[calc(100vh-theme(spacing.32))]">
+      <header className="flex flex-wrap items-start justify-between gap-4 flex-shrink-0">
         <div className="space-y-2">
           <div className="flex items-center gap-2 text-sm text-[var(--color-muted)]">
             <span>{t("ui.admin.tenants.breadcrumb.section", "Tenants")}</span>
@@ -156,8 +156,8 @@ function TenantListPage() {
         </div>
       </header>
 
-      <Card className="bg-[var(--color-panel)]">
-        <CardHeader className="flex flex-row items-center justify-between">
+      <Card className="bg-[var(--color-panel)] flex-1 flex flex-col min-h-0 overflow-hidden">
+        <CardHeader className="flex flex-row items-center justify-between flex-shrink-0">
           <div>
             <CardTitle>
               {t("ui.admin.tenants.registry.title", "Tenant Registry")}
@@ -172,120 +172,132 @@ function TenantListPage() {
             {t("ui.common.badge.admin_only", "Admin only")}
           </Badge>
         </CardHeader>
-        <CardContent>
+        <CardContent className="flex-1 flex flex-col min-h-0 pt-0">
           {(errorMsg || fallbackError) && (
             <div className="mb-4 rounded-lg border border-destructive/40 bg-destructive/10 px-3 py-2 text-sm text-destructive">
               {errorMsg ?? fallbackError}
             </div>
           )}
 
-          <Table>
-            <TableHeader>
-              <TableRow>
-                <TableHead>
-                  {t("ui.admin.tenants.table.name", "NAME")}
-                </TableHead>
-                <TableHead>
-                  {t("ui.admin.tenants.table.type", "TYPE")}
-                </TableHead>
-                <TableHead>
-                  {t("ui.admin.tenants.table.slug", "SLUG")}
-                </TableHead>
-                <TableHead>
-                  {t("ui.admin.tenants.table.status", "STATUS")}
-                </TableHead>
-                <TableHead>
-                  {t("ui.admin.tenants.table.members", "MEMBERS")}
-                </TableHead>
-                <TableHead>
-                  {t("ui.admin.tenants.table.updated", "UPDATED")}
-                </TableHead>
-                <TableHead className="text-right">
-                  {t("ui.admin.tenants.table.actions", "ACTIONS")}
-                </TableHead>
-              </TableRow>
-            </TableHeader>
-            <TableBody>
-              {query.isLoading && (
-                <TableRow>
-                  <TableCell colSpan={7}>
-                    {t("msg.common.loading", "로딩 중...")}
-                  </TableCell>
-                </TableRow>
-              )}
-              {!query.isLoading && tenants.length === 0 && (
-                <TableRow>
-                  <TableCell
-                    colSpan={7}
-                    className="text-center py-8 text-muted-foreground"
-                  >
-                    {t(
-                      "msg.admin.tenants.empty",
-                      "아직 등록된 테넌트가 없습니다.",
-                    )}
-                  </TableCell>
-                </TableRow>
-              )}
-              {tenants.map((tenant) => (
-                <TableRow key={tenant.id}>
-                  <TableCell className="font-semibold">{tenant.name}</TableCell>
-                  <TableCell>
-                    <Badge variant="outline" className="text-[10px] font-mono">
-                      {t(
-                        `domain.tenant_type.${tenant.type?.toLowerCase()}`,
-                        tenant.type,
-                      )}
-                    </Badge>
-                  </TableCell>
-                  <TableCell className="font-mono text-xs">
-                    {tenant.slug}
-                  </TableCell>
-                  <TableCell>
-                    <Badge
-                      variant={
-                        tenant.status === "active"
-                          ? "default"
-                          : tenant.status === "pending"
-                            ? "secondary"
-                            : "muted"
-                      }
-                    >
-                      {t(`ui.common.status.${tenant.status}`, tenant.status)}
-                    </Badge>
-                  </TableCell>
-                  <TableCell className="font-medium">
-                    {tenant.memberCount}
-                  </TableCell>
-                  <TableCell className="text-xs">
-                    {tenant.updatedAt
-                      ? new Date(tenant.updatedAt).toLocaleString("ko-KR")
-                      : "-"}
-                  </TableCell>
-                  <TableCell className="text-right">
-                    <div className="flex justify-end gap-2">
-                      <Button
-                        variant="outline"
-                        size="sm"
-                        onClick={() => navigate(`/tenants/${tenant.id}`)}
+          <div className="flex-1 rounded-md border overflow-hidden flex flex-col">
+            <div className="flex-1 overflow-auto relative custom-scrollbar">
+              <Table>
+                <TableHeader className="sticky top-0 bg-muted/90 backdrop-blur z-10 shadow-sm">
+                  <TableRow>
+                    <TableHead>
+                      {t("ui.admin.tenants.table.name", "NAME")}
+                    </TableHead>
+                    <TableHead>
+                      {t("ui.admin.tenants.table.type", "TYPE")}
+                    </TableHead>
+                    <TableHead>
+                      {t("ui.admin.tenants.table.slug", "SLUG")}
+                    </TableHead>
+                    <TableHead>
+                      {t("ui.admin.tenants.table.status", "STATUS")}
+                    </TableHead>
+                    <TableHead>
+                      {t("ui.admin.tenants.table.members", "MEMBERS")}
+                    </TableHead>
+                    <TableHead>
+                      {t("ui.admin.tenants.table.updated", "UPDATED")}
+                    </TableHead>
+                    <TableHead className="text-right">
+                      {t("ui.admin.tenants.table.actions", "ACTIONS")}
+                    </TableHead>
+                  </TableRow>
+                </TableHeader>
+                <TableBody>
+                  {query.isLoading && (
+                    <TableRow>
+                      <TableCell colSpan={7}>
+                        {t("msg.common.loading", "로딩 중...")}
+                      </TableCell>
+                    </TableRow>
+                  )}
+                  {!query.isLoading && tenants.length === 0 && (
+                    <TableRow>
+                      <TableCell
+                        colSpan={7}
+                        className="text-center py-8 text-muted-foreground"
                       >
-                        <Pencil size={14} />
-                        {t("ui.common.edit", "편집")}
-                      </Button>
-                      <Button
-                        variant="outline"
-                        size="sm"
-                        onClick={() => handleDelete(tenant.id, tenant.name)}
-                        disabled={deleteMutation.isPending}
-                      >
-                        <Trash2 size={14} />
-                        {t("ui.common.delete", "삭제")}
-                      </Button>
-                    </div>
-                  </TableCell>
-                </TableRow>
-              ))}
-            </TableBody>
-          </Table>
+                        {t(
+                          "msg.admin.tenants.empty",
+                          "아직 등록된 테넌트가 없습니다.",
+                        )}
+                      </TableCell>
+                    </TableRow>
+                  )}
+                  {tenants.map((tenant) => (
+                    <TableRow key={tenant.id}>
+                      <TableCell className="font-semibold">
+                        {tenant.name}
+                      </TableCell>
+                      <TableCell>
+                        <Badge
+                          variant="outline"
+                          className="text-[10px] font-mono"
+                        >
+                          {t(
+                            `domain.tenant_type.${tenant.type?.toLowerCase()}`,
+                            tenant.type,
+                          )}
+                        </Badge>
+                      </TableCell>
+                      <TableCell className="font-mono text-xs">
+                        {tenant.slug}
+                      </TableCell>
+                      <TableCell>
+                        <Badge
+                          variant={
+                            tenant.status === "active"
+                              ? "default"
+                              : tenant.status === "pending"
+                                ? "secondary"
+                                : "muted"
+                          }
+                        >
+                          {t(
+                            `ui.common.status.${tenant.status}`,
+                            tenant.status,
+                          )}
+                        </Badge>
+                      </TableCell>
+                      <TableCell className="font-medium">
+                        {tenant.memberCount}
+                      </TableCell>
+                      <TableCell className="text-xs">
+                        {tenant.updatedAt
+                          ? new Date(tenant.updatedAt).toLocaleString("ko-KR")
+                          : "-"}
+                      </TableCell>
+                      <TableCell className="text-right">
+                        <div className="flex justify-end gap-2">
+                          <Button
+                            variant="outline"
+                            size="sm"
+                            onClick={() => navigate(`/tenants/${tenant.id}`)}
+                          >
+                            <Pencil size={14} />
+                            {t("ui.common.edit", "편집")}
+                          </Button>
+                          <Button
+                            variant="outline"
+                            size="sm"
+                            onClick={() => handleDelete(tenant.id, tenant.name)}
+                            disabled={deleteMutation.isPending}
+                          >
+                            <Trash2 size={14} />
+                            {t("ui.common.delete", "삭제")}
+                          </Button>
+                        </div>
+                      </TableCell>
+                    </TableRow>
+                  ))}
+                </TableBody>
+              </Table>
+            </div>
+          </div>
         </CardContent>
       </Card>
     </div>
diff --git a/adminfront/src/features/tenants/routes/TenantSubTenantsPage.tsx b/adminfront/src/features/tenants/routes/TenantSubTenantsPage.tsx
index 73276498..cd58c513 100644
--- a/adminfront/src/features/tenants/routes/TenantSubTenantsPage.tsx
+++ b/adminfront/src/features/tenants/routes/TenantSubTenantsPage.tsx
@@ -34,8 +34,8 @@ function TenantSubTenantsPage() {
   const subTenants = data?.items ?? [];
 
   return (
-    <Card className="mt-6 bg-[var(--color-panel)]">
-      <CardHeader className="flex flex-row items-center justify-between">
+    <Card className="mt-6 bg-[var(--color-panel)] flex-1 flex flex-col min-h-0 overflow-hidden">
+      <CardHeader className="flex flex-row items-center justify-between flex-shrink-0">
         <div>
           <CardTitle className="flex items-center gap-2">
             <Building2 size={18} className="text-primary" />
@@ -57,64 +57,73 @@ function TenantSubTenantsPage() {
           </Link>
         </Button>
       </CardHeader>
-      <CardContent>
-        <Table>
-          <TableHeader>
-            <TableRow>
-              <TableHead>
-                {t("ui.admin.tenants.sub.table.name", "NAME")}
-              </TableHead>
-              <TableHead>
-                {t("ui.admin.tenants.sub.table.slug", "SLUG")}
-              </TableHead>
-              <TableHead>
-                {t("ui.admin.tenants.sub.table.status", "STATUS")}
-              </TableHead>
-              <TableHead className="text-right">
-                {t("ui.admin.tenants.sub.table.action", "ACTION")}
-              </TableHead>
-            </TableRow>
-          </TableHeader>
-          <TableBody>
-            {subTenants.length === 0 && (
-              <TableRow>
-                <TableCell
-                  colSpan={4}
-                  className="text-center py-8 text-muted-foreground"
-                >
-                  {t("msg.admin.tenants.sub.empty", "하위 테넌트가 없습니다.")}
-                </TableCell>
-              </TableRow>
-            )}
-            {subTenants.map((tenant) => (
-              <TableRow key={tenant.id}>
-                <TableCell className="font-semibold">{tenant.name}</TableCell>
-                <TableCell className="text-xs font-mono">
-                  {tenant.slug}
-                </TableCell>
-                <TableCell>
-                  <Badge
-                    variant={
-                      tenant.status === "active" ? "default" : "secondary"
-                    }
-                  >
-                    {t(`ui.common.status.${tenant.status}`, tenant.status)}
-                  </Badge>
-                </TableCell>
-                <TableCell className="text-right">
-                  <Button
-                    variant="ghost"
-                    size="sm"
-                    onClick={() => navigate(`/tenants/${tenant.id}`)}
-                  >
-                    {t("ui.admin.tenants.sub.manage", "관리")}{" "}
-                    <ArrowRight size={12} className="ml-1" />
-                  </Button>
-                </TableCell>
-              </TableRow>
-            ))}
-          </TableBody>
-        </Table>
+      <CardContent className="flex-1 flex flex-col min-h-0 pt-0">
+        <div className="flex-1 rounded-md border overflow-hidden flex flex-col">
+          <div className="flex-1 overflow-auto relative custom-scrollbar">
+            <Table>
+              <TableHeader className="sticky top-0 bg-muted/90 backdrop-blur z-10 shadow-sm">
+                <TableRow>
+                  <TableHead>
+                    {t("ui.admin.tenants.sub.table.name", "NAME")}
+                  </TableHead>
+                  <TableHead>
+                    {t("ui.admin.tenants.sub.table.slug", "SLUG")}
+                  </TableHead>
+                  <TableHead>
+                    {t("ui.admin.tenants.sub.table.status", "STATUS")}
+                  </TableHead>
+                  <TableHead className="text-right">
+                    {t("ui.admin.tenants.sub.table.action", "ACTION")}
+                  </TableHead>
+                </TableRow>
+              </TableHeader>
+              <TableBody>
+                {subTenants.length === 0 && (
+                  <TableRow>
+                    <TableCell
+                      colSpan={4}
+                      className="text-center py-8 text-muted-foreground"
+                    >
+                      {t(
+                        "msg.admin.tenants.sub.empty",
+                        "하위 테넌트가 없습니다.",
+                      )}
+                    </TableCell>
+                  </TableRow>
+                )}
+                {subTenants.map((tenant) => (
+                  <TableRow key={tenant.id}>
+                    <TableCell className="font-semibold">
+                      {tenant.name}
+                    </TableCell>
+                    <TableCell className="text-xs font-mono">
+                      {tenant.slug}
+                    </TableCell>
+                    <TableCell>
+                      <Badge
+                        variant={
+                          tenant.status === "active" ? "default" : "secondary"
+                        }
+                      >
+                        {t(`ui.common.status.${tenant.status}`, tenant.status)}
+                      </Badge>
+                    </TableCell>
+                    <TableCell className="text-right">
+                      <Button
+                        variant="ghost"
+                        size="sm"
+                        onClick={() => navigate(`/tenants/${tenant.id}`)}
+                      >
+                        {t("ui.admin.tenants.sub.manage", "관리")}{" "}
+                        <ArrowRight size={12} className="ml-1" />
+                      </Button>
+                    </TableCell>
+                  </TableRow>
+                ))}
+              </TableBody>
+            </Table>
+          </div>
+        </div>
       </CardContent>
     </Card>
   );
diff --git a/adminfront/src/features/tenants/routes/TenantUsersPage.tsx b/adminfront/src/features/tenants/routes/TenantUsersPage.tsx
index fe722db9..e7f63104 100644
--- a/adminfront/src/features/tenants/routes/TenantUsersPage.tsx
+++ b/adminfront/src/features/tenants/routes/TenantUsersPage.tsx
@@ -42,8 +42,8 @@ function TenantUsersPage() {
   const users = usersQuery.data?.items ?? [];
 
   return (
-    <Card className="mt-6 bg-[var(--color-panel)]">
-      <CardHeader>
+    <Card className="mt-6 bg-[var(--color-panel)] flex-1 flex flex-col min-h-0 overflow-hidden">
+      <CardHeader className="flex-shrink-0">
         <CardTitle className="flex items-center gap-2">
           <User size={18} className="text-primary" />
           {t("ui.admin.tenants.members.title", "Tenant Members ({{count}})", {
@@ -51,66 +51,70 @@ function TenantUsersPage() {
           })}
         </CardTitle>
       </CardHeader>
-      <CardContent>
-        <Table>
-          <TableHeader>
-            <TableRow>
-              <TableHead>
-                {t("ui.admin.tenants.members.table.name", "NAME")}
-              </TableHead>
-              <TableHead>
-                {t("ui.admin.tenants.members.table.email", "EMAIL")}
-              </TableHead>
-              <TableHead>
-                {t("ui.admin.tenants.members.table.role", "ROLE")}
-              </TableHead>
-              <TableHead>
-                {t("ui.admin.tenants.members.table.status", "STATUS")}
-              </TableHead>
-            </TableRow>
-          </TableHeader>
-          <TableBody>
-            {users.length === 0 && (
-              <TableRow>
-                <TableCell
-                  colSpan={4}
-                  className="text-center py-8 text-muted-foreground"
-                >
-                  {t(
-                    "msg.admin.tenants.members.empty",
-                    "소속된 사용자가 없습니다.",
-                  )}
-                </TableCell>
-              </TableRow>
-            )}
-            {users.map((user) => (
-              <TableRow key={user.id}>
-                <TableCell className="font-semibold">{user.name}</TableCell>
-                <TableCell>
-                  <div className="flex items-center gap-1 text-xs">
-                    <Mail size={12} className="text-muted-foreground" />
-                    {user.email}
-                  </div>
-                </TableCell>
-                <TableCell>
-                  <Badge variant="outline" className="capitalize">
-                    {t(
-                      `ui.common.role.${user.role}`,
-                      user.role.replace("_", " "),
-                    )}
-                  </Badge>
-                </TableCell>
-                <TableCell>
-                  <Badge
-                    variant={user.status === "active" ? "default" : "muted"}
-                  >
-                    {t(`ui.common.status.${user.status}`, user.status)}
-                  </Badge>
-                </TableCell>
-              </TableRow>
-            ))}
-          </TableBody>
-        </Table>
+      <CardContent className="flex-1 flex flex-col min-h-0 pt-0">
+        <div className="flex-1 rounded-md border overflow-hidden flex flex-col">
+          <div className="flex-1 overflow-auto relative custom-scrollbar">
+            <Table>
+              <TableHeader className="sticky top-0 bg-muted/90 backdrop-blur z-10 shadow-sm">
+                <TableRow>
+                  <TableHead>
+                    {t("ui.admin.tenants.members.table.name", "NAME")}
+                  </TableHead>
+                  <TableHead>
+                    {t("ui.admin.tenants.members.table.email", "EMAIL")}
+                  </TableHead>
+                  <TableHead>
+                    {t("ui.admin.tenants.members.table.role", "ROLE")}
+                  </TableHead>
+                  <TableHead>
+                    {t("ui.admin.tenants.members.table.status", "STATUS")}
+                  </TableHead>
+                </TableRow>
+              </TableHeader>
+              <TableBody>
+                {users.length === 0 && (
+                  <TableRow>
+                    <TableCell
+                      colSpan={4}
+                      className="text-center py-8 text-muted-foreground"
+                    >
+                      {t(
+                        "msg.admin.tenants.members.empty",
+                        "소속된 사용자가 없습니다.",
+                      )}
+                    </TableCell>
+                  </TableRow>
+                )}
+                {users.map((user) => (
+                  <TableRow key={user.id}>
+                    <TableCell className="font-semibold">{user.name}</TableCell>
+                    <TableCell>
+                      <div className="flex items-center gap-1 text-xs">
+                        <Mail size={12} className="text-muted-foreground" />
+                        {user.email}
+                      </div>
+                    </TableCell>
+                    <TableCell>
+                      <Badge variant="outline" className="capitalize">
+                        {t(
+                          `ui.common.role.${user.role}`,
+                          user.role.replace("_", " "),
+                        )}
+                      </Badge>
+                    </TableCell>
+                    <TableCell>
+                      <Badge
+                        variant={user.status === "active" ? "default" : "muted"}
+                      >
+                        {t(`ui.common.status.${user.status}`, user.status)}
+                      </Badge>
+                    </TableCell>
+                  </TableRow>
+                ))}
+              </TableBody>
+            </Table>
+          </div>
+        </div>
       </CardContent>
     </Card>
   );
diff --git a/adminfront/src/features/user-groups/routes/GlobalUserGroupListPage.tsx b/adminfront/src/features/user-groups/routes/GlobalUserGroupListPage.tsx
index c4c84dc4..074a5f0f 100644
--- a/adminfront/src/features/user-groups/routes/GlobalUserGroupListPage.tsx
+++ b/adminfront/src/features/user-groups/routes/GlobalUserGroupListPage.tsx
@@ -35,8 +35,8 @@ export default function GlobalUserGroupListPage() {
     return <div className="p-8">Loading tenants and groups...</div>;
 
   return (
-    <div className="space-y-8">
-      <header className="flex items-start justify-between">
+    <div className="space-y-6 flex flex-col h-[calc(100vh-theme(spacing.32))]">
+      <header className="flex items-start justify-between flex-shrink-0">
         <div className="space-y-1">
           <h2 className="text-3xl font-bold tracking-tight">User Groups</h2>
           <p className="text-muted-foreground">
@@ -46,7 +46,7 @@ export default function GlobalUserGroupListPage() {
         </div>
       </header>
 
-      <div className="grid gap-6">
+      <div className="grid gap-6 flex-1 overflow-auto p-1">
         {tenantList?.items.map((tenant) => (
           <TenantGroupCard key={tenant.id} tenant={tenant} />
         ))}
@@ -62,8 +62,8 @@ function TenantGroupCard({ tenant }: { tenant: TenantSummary }) {
   });
 
   return (
-    <Card>
-      <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
+    <Card className="flex flex-col min-h-0 bg-[var(--color-panel)] overflow-hidden">
+      <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2 flex-shrink-0">
         <div className="space-y-1">
           <CardTitle className="text-xl flex items-center gap-2">
             <Building2 size={20} className="text-muted-foreground" />
@@ -83,62 +83,66 @@ function TenantGroupCard({ tenant }: { tenant: TenantSummary }) {
           </Link>
         </Button>
       </CardHeader>
-      <CardContent>
-        <Table>
-          <TableHeader>
-            <TableRow>
-              <TableHead className="w-[250px]">그룹명</TableHead>
-              <TableHead>설명</TableHead>
-              <TableHead className="w-[100px]">멤버 수</TableHead>
-              <TableHead className="text-right">작업</TableHead>
-            </TableRow>
-          </TableHeader>
-          <TableBody>
-            {isLoading ? (
-              <TableRow>
-                <TableCell colSpan={4} className="text-center">
-                  Loading...
-                </TableCell>
-              </TableRow>
-            ) : groups?.length === 0 ? (
-              <TableRow>
-                <TableCell
-                  colSpan={4}
-                  className="text-center text-muted-foreground py-4"
-                >
-                  등록된 유저 그룹이 없습니다.
-                </TableCell>
-              </TableRow>
-            ) : (
-              groups?.map((group) => (
-                <TableRow key={group.id}>
-                  <TableCell className="font-medium">
-                    <div className="flex items-center gap-2">
-                      <Users size={14} className="text-primary" />
-                      <Link
-                        to={`/tenants/${tenant.id}/user-groups/${group.id}`}
-                        className="hover:underline"
-                      >
-                        {group.name}
-                      </Link>
-                    </div>
-                  </TableCell>
-                  <TableCell>{group.description || "-"}</TableCell>
-                  <TableCell>{group.members?.length || 0} 명</TableCell>
-                  <TableCell className="text-right">
-                    <Button variant="ghost" size="sm" asChild>
-                      <Link
-                        to={`/tenants/${tenant.id}/user-groups/${group.id}`}
-                      >
-                        상세보기
-                      </Link>
-                    </Button>
-                  </TableCell>
+      <CardContent className="flex-1 flex flex-col min-h-0 pt-0">
+        <div className="flex-1 rounded-md border overflow-hidden flex flex-col">
+          <div className="flex-1 overflow-auto relative custom-scrollbar max-h-[400px]">
+            <Table>
+              <TableHeader className="sticky top-0 bg-muted/90 backdrop-blur z-10 shadow-sm">
+                <TableRow>
+                  <TableHead className="w-[250px]">그룹명</TableHead>
+                  <TableHead>설명</TableHead>
+                  <TableHead className="w-[100px]">멤버 수</TableHead>
+                  <TableHead className="text-right">작업</TableHead>
                 </TableRow>
-              ))
-            )}
-          </TableBody>
-        </Table>
+              </TableHeader>
+              <TableBody>
+                {isLoading ? (
+                  <TableRow>
+                    <TableCell colSpan={4} className="text-center">
+                      Loading...
+                    </TableCell>
+                  </TableRow>
+                ) : groups?.length === 0 ? (
+                  <TableRow>
+                    <TableCell
+                      colSpan={4}
+                      className="text-center text-muted-foreground py-4"
+                    >
+                      등록된 유저 그룹이 없습니다.
+                    </TableCell>
+                  </TableRow>
+                ) : (
+                  groups?.map((group) => (
+                    <TableRow key={group.id}>
+                      <TableCell className="font-medium">
+                        <div className="flex items-center gap-2">
+                          <Users size={14} className="text-primary" />
+                          <Link
+                            to={`/tenants/${tenant.id}/user-groups/${group.id}`}
+                            className="hover:underline"
+                          >
+                            {group.name}
+                          </Link>
+                        </div>
+                      </TableCell>
+                      <TableCell>{group.description || "-"}</TableCell>
+                      <TableCell>{group.members?.length || 0} 명</TableCell>
+                      <TableCell className="text-right">
+                        <Button variant="ghost" size="sm" asChild>
+                          <Link
+                            to={`/tenants/${tenant.id}/user-groups/${group.id}`}
+                          >
+                            상세보기
+                          </Link>
+                        </Button>
+                      </TableCell>
+                    </TableRow>
+                  ))
+                )}
+              </TableBody>
+            </Table>
+          </div>
+        </div>
       </CardContent>
     </Card>
   );
diff --git a/adminfront/src/features/user-groups/routes/TenantUserGroupsTab.tsx b/adminfront/src/features/user-groups/routes/TenantUserGroupsTab.tsx
index c56f8702..ad4ffdc7 100644
--- a/adminfront/src/features/user-groups/routes/TenantUserGroupsTab.tsx
+++ b/adminfront/src/features/user-groups/routes/TenantUserGroupsTab.tsx
@@ -929,9 +929,9 @@ function TenantUserGroupsTab() {
   const BaseIcon = getTenantIcon(currentBase.type);
 
   return (
-    <div className="space-y-6 mt-6">
-      <Card className="bg-[var(--color-panel)] border-none shadow-sm overflow-hidden">
-        <CardHeader className="flex flex-row items-center justify-between border-b bg-muted/5 py-4">
+    <div className="space-y-6 mt-6 flex flex-col h-[calc(100vh-theme(spacing.32))]">
+      <Card className="flex-1 flex flex-col min-h-0 bg-[var(--color-panel)] border-none shadow-sm overflow-hidden">
+        <CardHeader className="flex flex-row items-center justify-between border-b bg-muted/5 py-4 flex-shrink-0">
           <div className="space-y-1">
             <CardTitle className="text-xl font-bold flex items-center gap-2">
               <BaseIcon size={20} className="text-primary" />
@@ -1078,7 +1078,7 @@ function TenantUserGroupsTab() {
             </Dialog>
           </div>
         </CardHeader>
-        <div className="px-6 py-3 bg-muted/5 border-b flex items-center gap-4">
+        <div className="px-6 py-3 bg-muted/5 border-b flex items-center gap-4 flex-shrink-0">
           <div className="relative flex-1 max-w-sm">
             <Search className="absolute left-2.5 top-2.5 h-4 w-4 text-muted-foreground" />
             <Input
@@ -1102,39 +1102,43 @@ function TenantUserGroupsTab() {
             </Button>
           )}
         </div>
-        <CardContent className="p-0">
-          <Table>
-            <TableHeader className="bg-muted/5">
-              <TableRow>
-                <TableHead className="pl-6 w-[40%]">
-                  {t("ui.admin.tenants.table.name", "NAME")}
-                </TableHead>
-                <TableHead className="hidden md:table-cell">
-                  {t("ui.admin.tenants.table.slug", "SLUG")}
-                </TableHead>
-                <TableHead>
-                  {t("ui.admin.tenants.table.members", "MEMBERS")}
-                </TableHead>
-                <TableHead>
-                  {t("ui.admin.tenants.table.status", "STATUS")}
-                </TableHead>
-                <TableHead className="text-right pr-6">
-                  {t("ui.admin.tenants.table.actions", "ACTIONS")}
-                </TableHead>
-              </TableRow>
-            </TableHeader>
-            <TableBody>
-              <TenantTreeRow
-                node={currentBase}
-                level={0}
-                isRoot={true}
-                onRemove={handleRemove}
-                onMove={handleMove}
-                isUpdating={updateParentMutation.isPending}
-                searchTerm={treeSearchTerm}
-              />
-            </TableBody>
-          </Table>
+        <CardContent className="flex-1 flex flex-col min-h-0 p-0">
+          <div className="flex-1 rounded-md border-0 overflow-hidden flex flex-col">
+            <div className="flex-1 overflow-auto relative custom-scrollbar">
+              <Table>
+                <TableHeader className="sticky top-0 bg-muted/90 backdrop-blur z-10 shadow-sm">
+                  <TableRow>
+                    <TableHead className="pl-6 w-[40%]">
+                      {t("ui.admin.tenants.table.name", "NAME")}
+                    </TableHead>
+                    <TableHead className="hidden md:table-cell">
+                      {t("ui.admin.tenants.table.slug", "SLUG")}
+                    </TableHead>
+                    <TableHead>
+                      {t("ui.admin.tenants.table.members", "MEMBERS")}
+                    </TableHead>
+                    <TableHead>
+                      {t("ui.admin.tenants.table.status", "STATUS")}
+                    </TableHead>
+                    <TableHead className="text-right pr-6">
+                      {t("ui.admin.tenants.table.actions", "ACTIONS")}
+                    </TableHead>
+                  </TableRow>
+                </TableHeader>
+                <TableBody>
+                  <TenantTreeRow
+                    node={currentBase}
+                    level={0}
+                    isRoot={true}
+                    onRemove={handleRemove}
+                    onMove={handleMove}
+                    isUpdating={updateParentMutation.isPending}
+                    searchTerm={treeSearchTerm}
+                  />
+                </TableBody>
+              </Table>
+            </div>
+          </div>
         </CardContent>
       </Card>
     </div>
diff --git a/adminfront/src/features/user-groups/routes/UserGroupDetailPage.tsx b/adminfront/src/features/user-groups/routes/UserGroupDetailPage.tsx
index 98b9f9c7..860a8142 100644
--- a/adminfront/src/features/user-groups/routes/UserGroupDetailPage.tsx
+++ b/adminfront/src/features/user-groups/routes/UserGroupDetailPage.tsx
@@ -211,8 +211,8 @@ export function UserGroupDetailPage() {
     );
 
   return (
-    <div className="space-y-8">
-      <header className="flex flex-wrap items-start justify-between gap-4">
+    <div className="space-y-8 flex flex-col h-[calc(100vh-theme(spacing.32))]">
+      <header className="flex flex-wrap items-start justify-between gap-4 flex-shrink-0">
         <div className="space-y-2">
           <div className="flex items-center gap-2 text-sm text-muted-foreground">
             <Link
@@ -260,10 +260,10 @@ export function UserGroupDetailPage() {
         </div>
       </header>
 
-      <div className="grid grid-cols-1 lg:grid-cols-2 gap-8">
+      <div className="grid grid-cols-1 lg:grid-cols-2 gap-8 flex-1 min-h-0">
         {/* Members Management */}
-        <Card className="border-none shadow-sm bg-[var(--color-panel)]">
-          <CardHeader className="flex flex-row items-center justify-between">
+        <Card className="flex flex-col min-h-0 border-none shadow-sm bg-[var(--color-panel)] overflow-hidden">
+          <CardHeader className="flex flex-row items-center justify-between flex-shrink-0">
             <div>
               <CardTitle>
                 {t("ui.admin.groups.detail.members_title", "구성원 관리")}
@@ -347,88 +347,90 @@ export function UserGroupDetailPage() {
               </DialogContent>
             </Dialog>
           </CardHeader>
-          <CardContent>
-            <div className="rounded-md border border-border overflow-hidden">
-              <Table>
-                <TableHeader className="bg-muted/30">
-                  <TableRow>
-                    <TableHead className="font-bold">
-                      {t("ui.admin.users.list.table.name_email", "사용자")}
-                    </TableHead>
-                    <TableHead className="text-right font-bold">
-                      {t("ui.admin.groups.table.actions", "액션")}
-                    </TableHead>
-                  </TableRow>
-                </TableHeader>
-                <TableBody>
-                  {!currentGroup.members ||
-                  currentGroup.members.length === 0 ? (
+          <CardContent className="flex-1 flex flex-col min-h-0 pt-0">
+            <div className="flex-1 rounded-md border overflow-hidden flex flex-col">
+              <div className="flex-1 overflow-auto relative custom-scrollbar">
+                <Table>
+                  <TableHeader className="sticky top-0 bg-muted/90 backdrop-blur z-10 shadow-sm">
                     <TableRow>
-                      <TableCell
-                        colSpan={2}
-                        className="text-center py-8 text-muted-foreground"
-                      >
-                        {t(
-                          "msg.admin.groups.members.empty",
-                          "구성원이 없습니다.",
-                        )}
-                      </TableCell>
+                      <TableHead className="font-bold">
+                        {t("ui.admin.users.list.table.name_email", "사용자")}
+                      </TableHead>
+                      <TableHead className="text-right font-bold">
+                        {t("ui.admin.groups.table.actions", "액션")}
+                      </TableHead>
                     </TableRow>
-                  ) : (
-                    currentGroup.members.map((member) => (
-                      <TableRow
-                        key={member.id}
-                        className="hover:bg-muted/30 transition-colors"
-                      >
-                        <TableCell>
-                          <div className="flex items-center gap-3">
-                            <div className="h-8 w-8 rounded-full bg-primary/10 flex items-center justify-center text-primary font-bold text-xs">
-                              {member.name.charAt(0)}
-                            </div>
-                            <div>
-                              <p className="font-medium text-sm">
-                                {member.name}
-                              </p>
-                              <p className="text-xs text-muted-foreground">
-                                {member.email}
-                              </p>
-                            </div>
-                          </div>
-                        </TableCell>
-                        <TableCell className="text-right">
-                          <Button
-                            variant="ghost"
-                            size="icon"
-                            className="text-destructive hover:bg-destructive/10"
-                            onClick={() => {
-                              if (
-                                confirm(
-                                  t(
-                                    "msg.admin.groups.members.remove_confirm",
-                                    "제거하시겠습니까?",
-                                    { name: member.name },
-                                  ),
-                                )
-                              ) {
-                                removeMemberMutation.mutate(member.id);
-                              }
-                            }}
-                          >
-                            <Trash2 size={14} />
-                          </Button>
+                  </TableHeader>
+                  <TableBody>
+                    {!currentGroup.members ||
+                    currentGroup.members.length === 0 ? (
+                      <TableRow>
+                        <TableCell
+                          colSpan={2}
+                          className="text-center py-8 text-muted-foreground"
+                        >
+                          {t(
+                            "msg.admin.groups.members.empty",
+                            "구성원이 없습니다.",
+                          )}
                         </TableCell>
                       </TableRow>
-                    ))
-                  )}
-                </TableBody>
-              </Table>
+                    ) : (
+                      currentGroup.members.map((member) => (
+                        <TableRow
+                          key={member.id}
+                          className="hover:bg-muted/30 transition-colors"
+                        >
+                          <TableCell>
+                            <div className="flex items-center gap-3">
+                              <div className="h-8 w-8 rounded-full bg-primary/10 flex items-center justify-center text-primary font-bold text-xs">
+                                {member.name.charAt(0)}
+                              </div>
+                              <div>
+                                <p className="font-medium text-sm">
+                                  {member.name}
+                                </p>
+                                <p className="text-xs text-muted-foreground">
+                                  {member.email}
+                                </p>
+                              </div>
+                            </div>
+                          </TableCell>
+                          <TableCell className="text-right">
+                            <Button
+                              variant="ghost"
+                              size="icon"
+                              className="text-destructive hover:bg-destructive/10"
+                              onClick={() => {
+                                if (
+                                  confirm(
+                                    t(
+                                      "msg.admin.groups.members.remove_confirm",
+                                      "제거하시겠습니까?",
+                                      { name: member.name },
+                                    ),
+                                  )
+                                ) {
+                                  removeMemberMutation.mutate(member.id);
+                                }
+                              }}
+                            >
+                              <Trash2 size={14} />
+                            </Button>
+                          </TableCell>
+                        </TableRow>
+                      ))
+                    )}
+                  </TableBody>
+                </Table>
+              </div>
             </div>
           </CardContent>
         </Card>
 
         {/* Roles/Permissions Management (Keto Based) */}
-        <Card className="border-none shadow-sm bg-[var(--color-panel)]">
-          <CardHeader className="flex flex-row items-center justify-between">
+        <Card className="flex flex-col min-h-0 border-none shadow-sm bg-[var(--color-panel)] overflow-hidden">
+          <CardHeader className="flex flex-row items-center justify-between flex-shrink-0">
             <div>
               <CardTitle>
                 {t("ui.admin.groups.detail.permissions_title", "권한 관리")}
@@ -530,86 +532,88 @@ export function UserGroupDetailPage() {
               </DialogContent>
             </Dialog>
           </CardHeader>
-          <CardContent>
-            <div className="rounded-md border border-border overflow-hidden">
-              <Table>
-                <TableHeader className="bg-muted/30">
-                  <TableRow>
-                    <TableHead className="font-bold">
-                      {t("ui.admin.users.detail.form.tenant", "대상 테넌트")}
-                    </TableHead>
-                    <TableHead className="font-bold">
-                      {t("ui.admin.users.detail.form.role", "역할")}
-                    </TableHead>
-                    <TableHead className="text-right font-bold">
-                      {t("ui.admin.groups.table.actions", "액션")}
-                    </TableHead>
-                  </TableRow>
-                </TableHeader>
-                <TableBody>
-                  {isRolesLoading ? (
+          <CardContent className="flex-1 flex flex-col min-h-0 pt-0">
+            <div className="flex-1 rounded-md border overflow-hidden flex flex-col">
+              <div className="flex-1 overflow-auto relative custom-scrollbar">
+                <Table>
+                  <TableHeader className="sticky top-0 bg-muted/90 backdrop-blur z-10 shadow-sm">
                     <TableRow>
-                      <TableCell colSpan={3} className="text-center py-8">
-                        <div className="animate-spin rounded-full h-5 w-5 border-b-2 border-primary mx-auto" />
-                      </TableCell>
+                      <TableHead className="font-bold">
+                        {t("ui.admin.users.detail.form.tenant", "대상 테넌트")}
+                      </TableHead>
+                      <TableHead className="font-bold">
+                        {t("ui.admin.users.detail.form.role", "역할")}
+                      </TableHead>
+                      <TableHead className="text-right font-bold">
+                        {t("ui.admin.groups.table.actions", "액션")}
+                      </TableHead>
                     </TableRow>
-                  ) : !groupRoles || groupRoles.length === 0 ? (
-                    <TableRow>
-                      <TableCell
-                        colSpan={3}
-                        className="text-center py-8 text-muted-foreground"
-                      >
-                        {t(
-                          "msg.admin.groups.roles.empty",
-                          "할당된 역할이 없습니다.",
-                        )}
-                      </TableCell>
-                    </TableRow>
-                  ) : (
-                    groupRoles.map((role, idx) => (
-                      <TableRow
-                        key={`${role.tenantId}-${role.relation}-${idx}`}
-                        className="hover:bg-muted/30 transition-colors"
-                      >
-                        <TableCell>
-                          <div className="font-medium text-sm">
-                            {role.tenantName || role.tenantId}
-                          </div>
-                        </TableCell>
-                        <TableCell>
-                          <Badge
-                            variant="outline"
-                            className="capitalize font-normal"
-                          >
-                            {role.relation}
-                          </Badge>
-                        </TableCell>
-                        <TableCell className="text-right">
-                          <Button
-                            variant="ghost"
-                            size="icon"
-                            className="text-destructive hover:bg-destructive/10"
-                            onClick={() => {
-                              if (
-                                confirm(
-                                  t("msg.admin.groups.roles.remove_confirm"),
-                                )
-                              ) {
-                                removeRoleMutation.mutate({
-                                  targetTenantId: role.tenantId,
-                                  relation: role.relation,
-                                });
-                              }
-                            }}
-                          >
-                            <Trash2 size={14} />
-                          </Button>
+                  </TableHeader>
+                  <TableBody>
+                    {isRolesLoading ? (
+                      <TableRow>
+                        <TableCell colSpan={3} className="text-center py-8">
+                          <div className="animate-spin rounded-full h-5 w-5 border-b-2 border-primary mx-auto" />
                         </TableCell>
                       </TableRow>
-                    ))
-                  )}
-                </TableBody>
-              </Table>
+                    ) : !groupRoles || groupRoles.length === 0 ? (
+                      <TableRow>
+                        <TableCell
+                          colSpan={3}
+                          className="text-center py-8 text-muted-foreground"
+                        >
+                          {t(
+                            "msg.admin.groups.roles.empty",
+                            "할당된 역할이 없습니다.",
+                          )}
+                        </TableCell>
+                      </TableRow>
+                    ) : (
+                      groupRoles.map((role, idx) => (
+                        <TableRow
+                          key={`${role.tenantId}-${role.relation}-${idx}`}
+                          className="hover:bg-muted/30 transition-colors"
+                        >
+                          <TableCell>
+                            <div className="font-medium text-sm">
+                              {role.tenantName || role.tenantId}
+                            </div>
+                          </TableCell>
+                          <TableCell>
+                            <Badge
+                              variant="outline"
+                              className="capitalize font-normal"
+                            >
+                              {role.relation}
+                            </Badge>
+                          </TableCell>
+                          <TableCell className="text-right">
+                            <Button
+                              variant="ghost"
+                              size="icon"
+                              className="text-destructive hover:bg-destructive/10"
+                              onClick={() => {
+                                if (
+                                  confirm(
+                                    t("msg.admin.groups.roles.remove_confirm"),
+                                  )
+                                ) {
+                                  removeRoleMutation.mutate({
+                                    targetTenantId: role.tenantId,
+                                    relation: role.relation,
+                                  });
+                                }
+                              }}
+                            >
+                              <Trash2 size={14} />
+                            </Button>
+                          </TableCell>
+                        </TableRow>
+                      ))
+                    )}
+                  </TableBody>
+                </Table>
+              </div>
             </div>
           </CardContent>
         </Card>