main create

App.tsx

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+import React, { useState } from 'react';
+import { LandingPage } from './LandingPage';
+import { TourDetailPage } from './TourDetailPage';
+import { ExploreMap } from './ExploreMap';
+import { SignupPage } from './SignupPage';
+
+const App = () => {
+  type View = 'landing' | 'explore' | 'detail' | 'signup';
+  const [view, setView] = useState<View>('landing');
+
+  return (
+    <div className="app-container">
+      {view === 'landing' && (
+        <LandingPage 
+          onContinue={() => setView('explore')} 
+          onGoToSignup={() => setView('signup')} 
+        />
+      )}
+
+      {view === 'signup' && (
+        <SignupPage 
+          onBack={() => setView('landing')} 
+          onSuccess={() => setView('landing')} 
+        />
+      )}
+      
+      {view === 'explore' && (
+        <ExploreMap onBack={() => setView('landing')} />
+      )}
+
+      {view === 'detail' && (
+        <TourDetailPage />
+      )}
+    </div>
+  );
+};
+
+export default App;