Zeenat2612/collage-event-front-end ? reverse-engineered prompt

Build me a modern college event management web app called Campus Event Hub.

It should let students browse campus events, search and filter by category and date, register for events, save favorites, and see their active and past registrations. Each registration should have a polished digital admission pass with a scannable QR code, ticket details, and the ability to view, download, print, and copy the pass data.

I also want organizer and admin views. Organizers should be able to create, edit, publish, and remove events, see attendee lists, and check registration activity. Admins should have a higher level dashboard with user management, registration oversight, platform stats, and system settings.

Make it responsive, clean, and modern, with light and dark mode, a mobile friendly sidebar or drawer, modal dialogs, and a strong campus style. Include a QR scanner for verifying tickets from camera or uploaded images, and use mock data if real backend services are not available yet. If you need current docs for any libraries, look them up online first.