Admin interface for online gym subscription management website

Prompt: Design a interface for an admin account of an online gym subscription system. The interface should include: Dashboard: Key metrics (active subscribers, revenue, scheduled classes), notifications, and quick links. User Management: Sections for subscribers, trainers, and admin roles. Includes profile editing, subscription management, and role permissions. Class Management: Create/edit classes, assign trainers, and view a class calendar. Payments: Transaction history, billing, and payment settings. Reports: Subscriber, revenue, and class analytics. Settings: System configuration, content management, and notifications. Support: Manage support tickets and access help resources. Security: Access controls and activity logs.