I need a complete multi-level marketing application that runs smoothly on the web and through companion mobile apps. The focus is on a clean architecture that keeps data in sync across all fronts, with an intuitive interface that even first-time users can navigate without training. Core modules must include: • User management – easy sign-up, profile control, role assignment, and genealogy visualization • Commission tracking – automated, real-time calculation of multi-tier payouts with a clear audit trail • Sales reporting – dashboards and exportable reports that let me filter by date range, rank, and team Please build the web front-end to be fully responsive and power the mobile apps from the same API so we avoid double maintenance. Security, speed, and scalability are top priorities. On completion I expect source code, deployment instructions, and a brief walk-through so my team can manage future updates.