gerenciamento e criação de turmas junto de correções na tela de professores

docs/PROJECT_PROGRESS.md

@@ -404,6 +404,43 @@ This document tracks the overall progress of the AI Study Assistant project deve
 
 ### **Last 24 Hours:**
 
+- ✅ **ETAPA 2: Classes List Display** - Teachers can now view their created classes
+  - New `TeacherClassesListWidget` component
+  - "As Minhas Turmas" section added to Teacher Dashboard
+  - Real-time Firestore stream with `StreamBuilder`
+  - Query: `.where('teacherId', isEqualTo: currentUser.uid).orderBy('createdAt', descending: true)`
+  - **CORREÇÃO**: O erro anterior foi tentar usar `GridView` horizontal para um layout que exige colunas fixas de 2 cards
+  - **SOLUÇÃO**: Usar `ListView.builder` com `scrollDirection: Axis.horizontal`
+  - Cada item do ListView é uma `Column` com 2 cards (índice * 2 e índice * 2 + 1)
+  - Cards mantêm exatamente o mesmo tamanho da lista vertical original
+  - Layout: Card 1, 3, 5... (top row) | Card 2, 4, 6... (bottom row)
+  - Scroll horizontal para visualizar todas as turmas
+  - Padding entre colunas: 12 pixels
+  - Altura do SizedBox: 280 pixels (suficiente para 2 cards + spacing)
+  - Empty state: "Ainda não criaste nenhuma turma."
+  - Loading state with `CircularProgressIndicator`
+  - Cards styled with white background, rounded corners, and subtle shadow
+
+- ✅ **Fixed Pixel Overflow Issues** - Teacher Dashboard cards
+  - Replaced fixed `height: 150` with `BoxConstraints(minHeight: 135, maxHeight: 160)`
+  - Fixed overflow in "Criar Turma" card
+  - Fixed overflow in "Upload Conteúdo" card
+  - Cards now adapt better to different screen sizes
+
+- ✅ **Unified Quick Action Cards Text Style**
+  - "Upload Conteúdo" and "Criar Quiz" cards now have same text alignment as "Criar Turma"
+  - All cards use `Column` with `crossAxisAlignment: CrossAxisAlignment.start` for text
+  - Subtitle text now supports 2 lines with `maxLines: 2` and proper line height (1.2)
+  - Consistent fontSize (16 for title, 12 for subtitle) across all cards
+  - "Criar Quiz" subtitle updated to "Avaliações interativas" for better description
+
+- ✅ **ETAPA 1: Class Creation Feature** - Teacher can now create classes
+  - Added "Criar Turma" button in Teacher Dashboard
+  - Dialog for entering class name
+  - Auto-generates 6-character random code (A-Z, 0-9)
+  - Saves to Firestore `classes` collection with name, teacherId, code, createdAt
+  - Success/error feedback via SnackBar
+
 - ✅ Fixed dashboard overflow issue in QuickAccessWidget
 
 - ✅ Implemented responsive layout with IntrinsicHeight and Flexible