reworked login screen texts and extracted shared login form parts

lib/view/login/login.dart

@@ -93,8 +93,7 @@ class _LoginState extends State<Login> with SingleTickerProviderStateMixin {
                           controller: _controller,
                           onSuccess: _onLoginSuccess,
                         ),
-                        const SizedBox(height: 18),
-                        const LoginDisclaimer(),
+                        const SizedBox(height: 12),
                       ],
                     ),
                     const Column(

lib/view/login/widgets/login_branding.dart

@@ -29,7 +29,7 @@ class LoginHeader extends StatelessWidget {
       ),
       const SizedBox(height: 6),
       Text(
-        'Stundenplan, Talk & Dateien an einem Ort.',
+        'Stundenplan, Talk, Dateien und mehr - alles an einem Ort für deinen Schulalltag am Marianum Fulda.',
         textAlign: TextAlign.center,
         style: TextStyle(
           color: Colors.white.withValues(alpha: 0.85),
@@ -41,24 +41,6 @@ class LoginHeader extends StatelessWidget {
   );
 }
 
-class LoginDisclaimer extends StatelessWidget {
-  const LoginDisclaimer({super.key});
-
-  @override
-  Widget build(BuildContext context) => Padding(
-    padding: const EdgeInsets.symmetric(horizontal: 8),
-    child: Text(
-      'Alles für deinen Schulalltag am Marianum Fulda.',
-      textAlign: TextAlign.center,
-      style: TextStyle(
-        color: Colors.white.withValues(alpha: 0.75),
-        fontSize: 11,
-        height: 1.4,
-      ),
-    ),
-  );
-}
-
 class LoginFooter extends StatelessWidget {
   const LoginFooter({super.key});
 

lib/view/login/widgets/login_card.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import '../../../routing/app_routes.dart';
 import '../login_controller.dart';
 import 'login_error_banner.dart';
+import 'login_form_parts.dart';
 
 /// White Card hosting the login form (heading, two text fields, error
 /// banner, submit button). Submitting calls [controller.submit] and signals
@@ -75,58 +76,16 @@ class _LoginCardState extends State<LoginCard> {
     }
   }
 
-  InputDecoration _decoration(ThemeData theme, String label, IconData icon) =>
-      InputDecoration(
-        labelText: label,
-        prefixIcon: Icon(icon),
-        filled: true,
-        fillColor: theme.colorScheme.surfaceContainerHighest.withValues(
-          alpha: 0.4,
-        ),
-        border: OutlineInputBorder(
-          borderRadius: BorderRadius.circular(12),
-          borderSide: BorderSide.none,
-        ),
-        enabledBorder: OutlineInputBorder(
-          borderRadius: BorderRadius.circular(12),
-          borderSide: BorderSide.none,
-        ),
-        focusedBorder: OutlineInputBorder(
-          borderRadius: BorderRadius.circular(12),
-          borderSide: BorderSide(color: theme.colorScheme.primary, width: 1.5),
-        ),
-      );
-
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
     final loading = widget.controller.loading;
-    return Card(
-      elevation: 8,
-      shadowColor: Colors.black.withValues(alpha: 0.35),
-      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
-      color: theme.colorScheme.surface,
-      child: Padding(
-        padding: const EdgeInsets.fromLTRB(24, 24, 24, 20),
-        child: Form(
+    return Form(
       key: _formKey,
-          child: Column(
-            crossAxisAlignment: CrossAxisAlignment.stretch,
+      child: LoginCardFrame(
+        title: 'Anmelden',
+        hint: 'Melde dich mit deinen Marianum-Zugangsdaten an.',
         children: [
-              Text(
-                'Anmelden',
-                style: theme.textTheme.titleLarge?.copyWith(
-                  fontWeight: FontWeight.w600,
-                ),
-              ),
-              const SizedBox(height: 6),
-              Text(
-                'Melde dich mit deinen Marianum-Zugangsdaten an.',
-                style: theme.textTheme.bodySmall?.copyWith(
-                  color: theme.colorScheme.onSurfaceVariant,
-                ),
-              ),
-              const SizedBox(height: 20),
           TextFormField(
             key: const Key('login-username-field'),
             controller: _usernameController,
@@ -135,7 +94,7 @@ class _LoginCardState extends State<LoginCard> {
             autocorrect: false,
             textInputAction: TextInputAction.next,
             onFieldSubmitted: (_) => _passwordFocus.requestFocus(),
-                decoration: _decoration(
+            decoration: loginInputDecoration(
               theme,
               'Nutzername',
               Icons.person_outline,
@@ -155,43 +114,25 @@ class _LoginCardState extends State<LoginCard> {
             keyboardType: TextInputType.visiblePassword,
             textInputAction: TextInputAction.done,
             onFieldSubmitted: (_) => _submit(),
-                decoration: _decoration(theme, 'Passwort', Icons.lock_outline),
+            decoration: loginInputDecoration(
+              theme,
+              'Passwort',
+              Icons.lock_outline,
+            ),
           ),
           LoginErrorBanner(
             message: widget.controller.errorMessage,
             details: widget.controller.errorDetails,
           ),
           const SizedBox(height: 20),
-              SizedBox(
-                height: 50,
-                child: FilledButton(
+          LoginSubmitButton(
             key: const Key('login-submit-button'),
-                  onPressed: loading ? null : _submit,
-                  style: FilledButton.styleFrom(
-                    shape: RoundedRectangleBorder(
-                      borderRadius: BorderRadius.circular(12),
-                    ),
-                    textStyle: const TextStyle(
-                      fontSize: 15,
-                      fontWeight: FontWeight.w600,
-                    ),
-                  ),
-                  child: loading
-                      ? const SizedBox(
-                          height: 22,
-                          width: 22,
-                          child: CircularProgressIndicator(
-                            strokeWidth: 2.5,
-                            color: Colors.white,
-                          ),
-                        )
-                      : const Text('Anmelden'),
-                ),
+            label: 'Anmelden',
+            loading: loading,
+            onPressed: _submit,
           ),
         ],
       ),
-        ),
-      ),
     );
   }
 }

lib/view/login/widgets/login_form_parts.dart

@@ -0,0 +1,109 @@
+import 'package:flutter/material.dart';
+
+/// Filled, borderless text field look shared by the login cards.
+InputDecoration loginInputDecoration(
+  ThemeData theme,
+  String label,
+  IconData icon,
+) => InputDecoration(
+  labelText: label,
+  prefixIcon: Icon(icon),
+  filled: true,
+  fillColor: theme.colorScheme.surfaceContainerHighest.withValues(alpha: 0.4),
+  border: OutlineInputBorder(
+    borderRadius: BorderRadius.circular(12),
+    borderSide: BorderSide.none,
+  ),
+  enabledBorder: OutlineInputBorder(
+    borderRadius: BorderRadius.circular(12),
+    borderSide: BorderSide.none,
+  ),
+  focusedBorder: OutlineInputBorder(
+    borderRadius: BorderRadius.circular(12),
+    borderSide: BorderSide(color: theme.colorScheme.primary, width: 1.5),
+  ),
+);
+
+/// Card frame with heading and hint line shared by the login cards.
+class LoginCardFrame extends StatelessWidget {
+  final String title;
+  final String hint;
+  final List<Widget> children;
+
+  const LoginCardFrame({
+    required this.title,
+    required this.hint,
+    required this.children,
+    super.key,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    return Card(
+      elevation: 8,
+      shadowColor: Colors.black.withValues(alpha: 0.35),
+      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
+      color: theme.colorScheme.surface,
+      child: Padding(
+        padding: const EdgeInsets.fromLTRB(24, 24, 24, 20),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.stretch,
+          children: [
+            Text(
+              title,
+              style: theme.textTheme.titleLarge?.copyWith(
+                fontWeight: FontWeight.w600,
+              ),
+            ),
+            const SizedBox(height: 6),
+            Text(
+              hint,
+              style: theme.textTheme.bodySmall?.copyWith(
+                color: theme.colorScheme.onSurfaceVariant,
+              ),
+            ),
+            const SizedBox(height: 20),
+            ...children,
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+/// Full-width primary button that swaps its label for a spinner while busy.
+class LoginSubmitButton extends StatelessWidget {
+  final String label;
+  final bool loading;
+  final VoidCallback onPressed;
+
+  const LoginSubmitButton({
+    required this.label,
+    required this.loading,
+    required this.onPressed,
+    super.key,
+  });
+
+  @override
+  Widget build(BuildContext context) => SizedBox(
+    height: 50,
+    child: FilledButton(
+      onPressed: loading ? null : onPressed,
+      style: FilledButton.styleFrom(
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+        textStyle: const TextStyle(fontSize: 15, fontWeight: FontWeight.w600),
+      ),
+      child: loading
+          ? const SizedBox(
+              height: 22,
+              width: 22,
+              child: CircularProgressIndicator(
+                strokeWidth: 2.5,
+                color: Colors.white,
+              ),
+            )
+          : Text(label),
+    ),
+  );
+}