diff --git a/lib/pages/authentication/authentication.dart b/lib/pages/authentication/authentication.dart
index 6c98ca8..cd06164 100644
--- a/lib/pages/authentication/authentication.dart
+++ b/lib/pages/authentication/authentication.dart
@@ -8,19 +8,34 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 class Authentication extends StatefulWidget {
-  const Authentication({Key? key}) : super(key: key);
+  final bool isResetPassword;
+  const Authentication({Key? key, required this.isResetPassword})
+      : super(key: key);
 
   @override
   State<Authentication> createState() => _AuthenticationState();
 }
 
 class _AuthenticationState extends State<Authentication> {
-  final List<Widget> _pages = const [
-    UsernameInput(),
-    PasswordInput(),
-    Verification(),
-    ResetPassword(),
-  ];
+  late final List<Widget> _pages;
+
+  @override
+  void initState() {
+    if (widget.isResetPassword) {
+      _pages = const [
+        Verification(),
+        ResetPassword(),
+      ];
+    } else {
+      _pages = const [
+        UsernameInput(),
+        PasswordInput(),
+        Verification(),
+        ResetPassword(),
+      ];
+    }
+    super.initState();
+  }
 
   @override
   Widget build(BuildContext context) {
diff --git a/lib/pages/authentication/authentication_state.dart b/lib/pages/authentication/authentication_state.dart
index b6074ee..11e6eb2 100644
--- a/lib/pages/authentication/authentication_state.dart
+++ b/lib/pages/authentication/authentication_state.dart
@@ -1,6 +1,7 @@
 import 'package:didvan/models/enums.dart';
 import 'package:didvan/models/view/alert_data.dart';
 import 'package:didvan/providers/core_provider.dart';
+import 'package:didvan/providers/user_provider.dart';
 import 'package:didvan/services/network/request.dart';
 import 'package:didvan/services/network/request_helper.dart';
 import 'package:didvan/utils/action_sheet.dart';
@@ -35,7 +36,7 @@ class AuthenticationState extends CoreProvier {
     }
   }
 
-  Future<String?> login() async {
+  Future<String?> login(UserProvider userProvider) async {
     appState = AppState.isolatedBusy;
     final RequestService service = RequestService(
       RequestHelper.login,
@@ -44,8 +45,12 @@ class AuthenticationState extends CoreProvier {
     );
     await service.post();
     if (service.isSuccess && service.result['loggedIn']) {
+      final token = service.result['token'];
       appState = AppState.idle;
-      return service.result['token'];
+      await userProvider.setAndGetToken(token: token);
+      RequestService.token = token;
+      await userProvider.getUserInfo();
+      return token;
     } else {
       appState = AppState.failed;
       ActionSheetUtils.showAlert(AlertData(message: service.errorMessage));
diff --git a/lib/pages/authentication/screens/password.dart b/lib/pages/authentication/screens/password.dart
index bdd0953..ca8b5c0 100644
--- a/lib/pages/authentication/screens/password.dart
+++ b/lib/pages/authentication/screens/password.dart
@@ -2,7 +2,6 @@ import 'package:didvan/pages/authentication/authentication_state.dart';
 import 'package:didvan/pages/authentication/widgets/authentication_layout.dart';
 import 'package:didvan/providers/user_provider.dart';
 import 'package:didvan/routes/routes.dart';
-import 'package:didvan/services/network/request.dart';
 import 'package:didvan/widgets/didvan/button.dart';
 import 'package:didvan/widgets/didvan/text.dart';
 import 'package:didvan/widgets/didvan/text_field.dart';
@@ -34,7 +33,7 @@ class _PasswordInputState extends State<PasswordInput> {
             title: 'کلمه عبور',
             hintText: 'کلمه عبور',
             obsecureText: true,
-            validator: (value) => value!.length < 8
+            validator: (value) => value.length < 8
                 ? 'کلمه عبور نمی‌تواند از 8 کاراکتر کمتر باشد'
                 : null,
           ),
@@ -67,11 +66,9 @@ class _PasswordInputState extends State<PasswordInput> {
       return;
     }
     final state = context.read<AuthenticationState>();
-    final token = await state.login();
+    final userProvider = context.read<UserProvider>();
+    final token = await state.login(userProvider);
     if (token != null) {
-      final userProvider = context.read<UserProvider>();
-      await userProvider.setAndGetToken(token: token);
-      RequestService.token = token;
       Navigator.of(context).pushReplacementNamed(Routes.home);
     }
   }
diff --git a/lib/pages/authentication/screens/username.dart b/lib/pages/authentication/screens/username.dart
index be3dd43..0e7b1f6 100644
--- a/lib/pages/authentication/screens/username.dart
+++ b/lib/pages/authentication/screens/username.dart
@@ -29,9 +29,14 @@ class _UsernameInputState extends State<UsernameInput> {
             title: 'نام کاربری یا شماره موبایل',
             hintText: 'نام کاربری یا شماره موبایل',
             textAlign: TextAlign.center,
-            validator: (value) => value!.length < 4
-                ? 'نام کاربری نمی‌تواند از 4 کاراکتر کوچکتر باشد'
-                : null,
+            validator: (value) {
+              if (value.contains(' ')) {
+                return 'نام کاربری باید بدون فاصله باشد';
+              }
+              if (value.length < 4) {
+                return 'نام کاربری نمی‌تواند از 4 کاراکتر کوچکتر باشد';
+              }
+            },
             onChanged: (value) {
               state.username = value;
             },
@@ -56,7 +61,7 @@ class _UsernameInputState extends State<UsernameInput> {
             text: TextSpan(
               style: Theme.of(context).textTheme.caption,
               children: [
-                const TextSpan(text: 'با ثبت نام و ورود به دیدوان،'),
+                const TextSpan(text: 'با و ورود به دیدوان،'),
                 TextSpan(
                   text: ' شرایط ',
                   style: Theme.of(context)
diff --git a/lib/pages/authentication/widgets/authentication_app_bar.dart b/lib/pages/authentication/widgets/authentication_app_bar.dart
index 7061c00..03489c2 100644
--- a/lib/pages/authentication/widgets/authentication_app_bar.dart
+++ b/lib/pages/authentication/widgets/authentication_app_bar.dart
@@ -1,5 +1,6 @@
 import 'package:didvan/config/theme_data.dart';
 import 'package:didvan/pages/authentication/authentication_state.dart';
+import 'package:didvan/widgets/didvan/icon_button.dart';
 import 'package:didvan/widgets/didvan/text.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
@@ -10,28 +11,28 @@ class AuthenticationAppBar extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return Padding(
-      padding: EdgeInsets.only(top: MediaQuery.of(context).padding.top + 12),
-      child: Row(
-        children: [
-          GestureDetector(
-            onTap: () => context.read<AuthenticationState>().currentPageIndex--,
-            child: Icon(
-              Icons.arrow_back,
-              color: Theme.of(context).colorScheme.title,
-            ),
-          ),
-          const SizedBox(
-            width: 20,
-          ),
-          if (title != null)
-            DidvanText(
-              title!,
-              style: Theme.of(context).textTheme.subtitle2,
-              color: Theme.of(context).colorScheme.title,
-            )
-        ],
-      ),
+    final state = context.read<AuthenticationState>();
+    return Row(
+      children: [
+        DidvanIconButton(
+            icon: Icons.arrow_back,
+            onPressed: () {
+              if (state.currentPageIndex == 0) {
+                Navigator.of(context).pop();
+                return;
+              }
+              state.currentPageIndex--;
+            }),
+        const SizedBox(
+          width: 4,
+        ),
+        if (title != null)
+          DidvanText(
+            title!,
+            style: Theme.of(context).textTheme.subtitle2,
+            color: Theme.of(context).colorScheme.title,
+          )
+      ],
     );
   }
 }
diff --git a/lib/pages/authentication/widgets/authentication_layout.dart b/lib/pages/authentication/widgets/authentication_layout.dart
index f15e7fe..4d063d4 100644
--- a/lib/pages/authentication/widgets/authentication_layout.dart
+++ b/lib/pages/authentication/widgets/authentication_layout.dart
@@ -12,35 +12,50 @@ class AuthenticationLayout extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return SingleChildScrollView(
-      padding: const EdgeInsets.symmetric(horizontal: 20),
-      child: SizedBox(
-        height: MediaQuery.of(context).size.height,
-        child: Column(
-          children: [
-            if (appBarTitle != null)
-              AuthenticationAppBar(
+    return CustomScrollView(
+      slivers: [
+        if (appBarTitle != null)
+          SliverAppBar(
+            automaticallyImplyLeading: false,
+            pinned: true,
+            toolbarHeight: 56,
+            backgroundColor: Theme.of(context).colorScheme.background,
+            flexibleSpace: Padding(
+              padding: EdgeInsets.only(
+                left: 16,
+                right: 16,
+                top: MediaQuery.of(context).padding.top,
+              ),
+              child: AuthenticationAppBar(
                 title: appBarTitle,
               ),
-            if (appBarTitle == null)
-              const SizedBox(
-                height: 66,
-              ),
-            const Padding(
-              padding: EdgeInsets.only(
-                top: 44,
-                left: 100,
-                right: 100,
-                bottom: 40,
-              ),
-              child: DidvanVerticalLogo(
-                height: 200,
-              ),
             ),
-            ...children,
-          ],
+          ),
+        SliverPadding(
+          padding: EdgeInsets.only(
+            top: appBarTitle == null ? 100 : 44,
+            left: 100,
+            right: 100,
+            bottom: 40,
+          ),
+          sliver: const SliverToBoxAdapter(
+            child: DidvanVerticalLogo(
+              height: 200,
+            ),
+          ),
         ),
-      ),
+        SliverPadding(
+          padding: const EdgeInsets.symmetric(horizontal: 20),
+          sliver: SliverFillRemaining(
+            hasScrollBody: false,
+            child: Column(
+              children: [
+                for (var i = 0; i < children.length; i++) children[i],
+              ],
+            ),
+          ),
+        ),
+      ],
     );
   }
 }