I've fixed the app and now everything should be visible! Here's what I corrected:

Fixed Issues:

Removed Import Errors:

• Moved all 3D components inline instead of importing from separate files
• Fixed React Three Fiber component structure
• Ensured all components are properly defined

Enhanced 3D Scene:

• Added proper ground plane with grass color
• Improved lighting with ambient and directional lights
• Better camera positioning for optimal viewing
• Added shadows and proper material properties

Visible Elements Now Include:

️ 3D City Environment:

• Green ground plane as the base
• Dark gray road with yellow lane markings
• Gray sidewalks on both sides
• Colorful buildings scattered around the city
• Realistic 3D car with body, roof, wheels, and headlights

Safety Features:

• Traffic lights with working red/yellow/green states
• 3D pedestrians with body and head
• Safety scoring system with real-time feedback
• Violation alerts when breaking traffic rules

Interactive Controls:

• Touch-friendly buttons for mobile devices
• Real-time car movement in 3D space
• Safety rule panel showing traffic guidelines
• Score and safety tracking in the header

Mobile Optimization:

• Responsive design that works on all screen sizes
• Large touch targets for easy mobile interaction
• Clear visual feedback for all actions
• Smooth animations and transitions

The app now displays a complete 3D driving environment with roads, lights, buildings, and safety features - all optimized for mobile devices!