diff --git a/app/Http/Controllers/Admin/AdditionalController.php b/app/Http/Controllers/Admin/AdditionalController.php
index 5313555..393863e 100644
--- a/app/Http/Controllers/Admin/AdditionalController.php
+++ b/app/Http/Controllers/Admin/AdditionalController.php
@@ -3,68 +3,24 @@
 namespace App\Http\Controllers\Admin;
 
 use App\Http\Controllers\Controller;
-use Illuminate\Http\Request;
 use App\Models\Additional;
-use Illuminate\Support\Facades\Validator;
+use App\Http\Requests\Admin\AdditionalRequest; // Gunakan FormRequest baru
 
 class AdditionalController extends Controller
 {
-    // Store: Simpan Data Baru
-    public function store(Request $request)
+    public function store(AdditionalRequest $request)
     {
-        $validator = Validator::make($request->all(), [
-            'nama'  => 'required|string|min:3|max:100',
-            'harga' => 'required|numeric|min:0',
-        ], [
-            'required' => 'Kolom :attribute wajib diisi.',
-            'numeric'  => ':attribute harus berupa angka.',
-            'string'     => 'Input :attribute harus berupa teks valid.',
-            'max'        => ':attribute melebihi batas, maksimal :max karakter/KB.',
-            'min'        => ':attribute minimal harus :min karakter/nilai.',
-            'numeric'    => ':attribute harus berupa angka.',
-        ], [
-            'nama'  => 'nama additional',
-            'harga' => 'harga additional',
-        ]);
-        if ($validator->fails()) {
-            return redirect()->back()
-                ->withErrors($validator)
-                ->withInput()
-                ->with('error_modal', 'createAdd');
-        }
-        Additional::create($request->only(['nama', 'harga']));
+        Additional::create($request->validated());
         return redirect()->back()->with('success', 'Additional berhasil ditambahkan!');
     }
 
-    // Update: Simpan Perubahan
-    public function update(Request $request, string $id)
+    public function update(AdditionalRequest $request, string $id)
     {
         $additional = Additional::findOrFail($id);
-        $validator = Validator::make($request->all(), [
-            'nama'  => 'required|string|min:3|max:100',
-            'harga' => 'required|numeric|min:0',
-        ], [
-            'required' => 'Kolom :attribute wajib diisi.',
-            'numeric'  => ':attribute harus berupa angka.',
-            'string'     => 'Input :attribute harus berupa teks valid.',
-            'max'        => ':attribute melebihi batas, maksimal :max karakter/KB.',
-            'min'        => ':attribute minimal harus :min karakter/nilai.',
-            'numeric'    => ':attribute harus berupa angka.',
-        ], [
-            'nama'  => 'nama additional',
-            'harga' => 'harga additional',
-        ]);
-        if ($validator->fails()) {
-            return redirect()->back()
-                ->withErrors($validator)
-                ->withInput()
-                ->with('error_id_add', $id);
-        }
-        $additional->update($request->only(['nama', 'harga']));
+        $additional->update($request->validated());
         return redirect()->back()->with('success', 'Additional berhasil diperbarui!');
     }
 
-    // Destroy: Hapus Data
     public function destroy(string $id)
     {
         $additional = Additional::findOrFail($id);
diff --git a/app/Http/Requests/Admin/AdditionalRequest.php b/app/Http/Requests/Admin/AdditionalRequest.php
new file mode 100644
index 0000000..e0ec682
--- /dev/null
+++ b/app/Http/Requests/Admin/AdditionalRequest.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace App\Http\Requests\Admin;
+
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Contracts\Validation\Validator;
+use Illuminate\Http\Exceptions\HttpResponseException;
+
+class AdditionalRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true; // Izinkan akses request
+    }
+
+    public function rules(): array
+    {
+        return [
+            'nama'  => 'required|string|min:3|max:100',
+            'harga' => 'required|numeric|min:0',
+        ];
+    }
+
+    public function messages(): array
+    {
+        return [
+            'required' => 'Kolom :attribute wajib diisi.',
+            'numeric'  => ':attribute harus berupa angka.',
+            'string'   => 'Input :attribute harus berupa teks valid.',
+            'min'      => ':attribute minimal harus :min karakter/nilai.',
+            'max'      => ':attribute melebihi batas maksimal :max karakter.',
+        ];
+    }
+
+    public function attributes(): array
+    {
+        return [
+            'nama'  => 'nama additional',
+            'harga' => 'harga additional',
+        ];
+    }
+
+    /**
+     * Mengatur respon jika validasi gagal agar modal tidak tertutup.
+     */
+    protected function failedValidation(Validator $validator)
+    {
+        $redirect = redirect()->back()->withErrors($validator)->withInput();
+
+        if ($this->isMethod('post')) {
+            // Untuk modal tambah additional
+            $redirect->with('error_modal', 'createAdd');
+        } else {
+            // Untuk modal edit berdasarkan ID additional
+            $redirect->with('error_id_add', $this->route('additional'));
+        }
+
+        throw new HttpResponseException($redirect);
+    }
+}