feat: added global quiz score

QuizApp/CategorySelectionView.swift

@@ -9,15 +9,60 @@ import SwiftUI
 
 struct CategorySelectionView: View {
     @ObservedObject var viewModel = ViewModel()
+    @AppStorage("globalScore") var globalScore: Int = 0
     
     var body: some View {
         NavigationStack {
             VStack(spacing: 24) {
-                // Minimaler Header
-                Text("Quiz Kategorien")
-                    .font(.title)
-                    .fontWeight(.bold)
-                    .padding(.top)
+                // Willkommensnachricht
+                VStack(spacing: 8) {
+                    Text("Willkommen!")
+                        .font(.largeTitle)
+                        .fontWeight(.bold)
+                        .foregroundColor(.primary)
+                    
+                    Text("Wähle eine Kategorie und teste dein Wissen")
+                        .font(.subheadline)
+                        .foregroundColor(.secondary)
+                        .multilineTextAlignment(.center)
+                }
+                .padding(.top)
+                
+                // Punktestand
+                HStack {
+                    VStack(alignment: .leading, spacing: 4) {
+                        Text("Deine Punkte")
+                            .font(.caption)
+                            .foregroundColor(.secondary)
+                        Text("\(globalScore)")
+                            .font(.title2)
+                            .fontWeight(.bold)
+                            .foregroundColor(.blue)
+                    }
+                    
+                    Spacer()
+                    
+                    Image(systemName: "star.fill")
+                        .foregroundColor(.orange)
+                        .font(.title2)
+                }
+                .padding()
+                .background(
+                    RoundedRectangle(cornerRadius: 12)
+                        .fill(Color(.systemGray6))
+                        .overlay(
+                            RoundedRectangle(cornerRadius: 12)
+                                .stroke(Color(.systemGray4), lineWidth: 1)
+                        )
+                )
+                .padding(.horizontal)
+
+                // Kategorien Header
+                Text("Verfügbare Quiz")
+                    .font(.title2)
+                    .fontWeight(.semibold)
+                    .frame(maxWidth: .infinity, alignment: .leading)
+                    .padding(.horizontal)
                 
                 // Liste der Kategorien
                 VStack(spacing: 12) {
@@ -60,7 +105,7 @@ struct CategorySelectionView: View {
             }
             .background(Color.white)
             .navigationBarHidden(true)
+            .navigationTitle("Quiz-Auswahl")
         }
     }
 }
-

QuizApp/ContentView.swift

@@ -6,10 +6,13 @@
 //
 
 import SwiftUI
+import AudioToolbox
 
 struct ContentView: View {
     
     @ObservedObject var viewModel = ViewModel()
+    @AppStorage("globalScore") var score: Int = 0
+    @Environment(\.dismiss) var dismiss
     
     @State private var selectedAnswerIndex: Int? = nil
     @State private var isAnswered = false
@@ -33,13 +36,16 @@ struct ContentView: View {
                     .cornerRadius(10)
                     
                     Button("Zurück zur Kategorieauswahl") {
-                        viewModel.selectedCategory = nil
+                        dismiss()
                     }
                     .padding()
                     .background(Color.gray)
                     .foregroundColor(.white)
                     .cornerRadius(10)
                 }
+                .onAppear {
+                    AudioServicesPlaySystemSound(1322)
+                }
             } else if let frage = viewModel.currentQuestion {
                 Text("Punkte: \(viewModel.score)")
                     .font(.headline)
@@ -76,6 +82,9 @@ struct ContentView: View {
                         viewModel.incrementScore(selectedIndex: index)
                         viewModel.answeredCount += 1
                         viewModel.selectedAnswers[viewModel.currentQuestionIndex] = index
+                        if index == frage.correctAnswer {
+                            score += 1
+                        }
                     }) {
                         Text(frage.answers[index])
                             .padding(.vertical, 12)
@@ -158,9 +167,6 @@ struct ContentView: View {
         let correct = viewModel.questions[index].correctAnswer
         return selected == correct ? .green : .red
     }
-
-
-    
 }
 
 #Preview {