Dark mode em upload pdf

lib/features/materials/presentation/pages/teacher_materials_page.dart

@@ -47,11 +47,9 @@ class _TeacherMaterialsPageState extends State<TeacherMaterialsPage> {
       appBar: AppBar(
         title: const Text(
           'Materiais da Disciplina',
-          style: TextStyle(color: Colors.white, fontWeight: FontWeight.bold),
+          style: TextStyle(fontWeight: FontWeight.bold),
         ),
-        backgroundColor: const Color(0xFF82C9BD),
         elevation: 0,
-        iconTheme: const IconThemeData(color: Colors.white),
       ),
       floatingActionButton: _isUploading
           ? FloatingActionButton.extended(
@@ -81,12 +79,17 @@ class _TeacherMaterialsPageState extends State<TeacherMaterialsPage> {
             ),
 
       body: Container(
-        decoration: const BoxDecoration(
+        decoration: BoxDecoration(
           gradient: LinearGradient(
             begin: Alignment.topCenter,
             end: Alignment.bottomCenter,
-            colors: [Color(0xFF82C9BD), Color(0xFFF8F9FA)],
-            stops: [0.0, 0.4],
+            colors: Theme.of(context).brightness == Brightness.dark
+                ? [
+                    Theme.of(context).colorScheme.primary.withOpacity(0.3),
+                    Theme.of(context).colorScheme.background,
+                  ]
+                : [const Color(0xFF82C9BD), const Color(0xFFF8F9FA)],
+            stops: const [0.0, 0.4],
           ),
         ),
         child: SafeArea(
@@ -196,13 +199,14 @@ class _TeacherMaterialsPageState extends State<TeacherMaterialsPage> {
   }
 
   void _showUploadOptions() {
+    final cs = Theme.of(context).colorScheme;
     showModalBottomSheet(
       context: context,
       backgroundColor: Colors.transparent,
       builder: (context) => Container(
-        decoration: const BoxDecoration(
-          color: Colors.white,
-          borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
+        decoration: BoxDecoration(
+          color: cs.surface,
+          borderRadius: const BorderRadius.vertical(top: Radius.circular(20)),
         ),
         child: SafeArea(
           child: Padding(
@@ -216,7 +220,7 @@ class _TeacherMaterialsPageState extends State<TeacherMaterialsPage> {
                     width: 40,
                     height: 4,
                     decoration: BoxDecoration(
-                      color: Colors.grey[300],
+                      color: cs.onSurface.withOpacity(0.2),
                       borderRadius: BorderRadius.circular(2),
                     ),
                   ),

lib/features/settings/presentation/pages/help_page.dart

@@ -154,7 +154,7 @@ class HelpPage extends StatelessWidget {
                                 context: context,
                                 question: 'Como contactar o suporte?',
                                 answer:
-                                    'Pode contactar-nos através do email suporte@teachit.com.',
+                                    'Pode contactar-nos através do email suporte@learnit.com.',
                               ),
                             ],
                           ),