Complete design specification including: - Multi-site architecture for padel club management - Booking system with client app and admin panel - Point of sale (POS) with inventory - Tournaments and leagues module - Membership plans with benefits - Full database schema (Prisma) - UI/UX guidelines and color palette - Project structure (monorepo with Turborepo) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>