I want to launch an invitation-only web platform that lets no more than ten verified billionaires privately buy and sell off-market luxury products. Security and exclusivity are everything. Each member must sign in with a conventional email-and-password and then clear two-factor authentication before gaining access. Once inside, users should be able to browse confidential listings, post their own offers, and negotiate deals through an encrypted messaging area. I also need an admin dashboard where I can approve or revoke memberships, audit activity logs, and manually close a room if a deal is completed. Your deliverable is a fully functioning, production-ready web application deployed on a secure cloud environment with the following acceptance criteria: • Email-plus-password login coupled with time-based one-time-password two-factor authentication. • Hard cap of ten active accounts enforced at the database level. • SSL everywhere, end-to-end encryption for messages, and masked user identities visible only to me as administrator. • Clean, intuitive UI that feels premium and works smoothly on modern desktop and mobile browsers. If you are confident in building highly secure, private web platforms and can demonstrate previous work with similar authentication standards, let’s talk.