Please help me design a comprehensive system architecture for [SYSTEM_TYPE/APPLICATION] that needs to [CORE_FUNCTIONALITY] and handle [SCALE/REQUIREMENTS]. System context: - Expected user/traffic scale: [SCALE_METRICS] - Key functional requirements: [REQUIREMENTS] - Critical non-functional requirements: [NFRs] - Business constraints: [CONSTRAINTS] - Technology preferences: [PREFERENCES] Create a complete technical specification including: 1) Architectural Overview: - Architecture style justification (microservices, monolith, etc.) - High-level component diagram description - System boundaries and interfaces - Key architectural patterns employed - Infrastructure considerations 2) Component Design: - Detailed component breakdown - Component responsibilities and domains - Inter-component communication patterns - State management approach - Failure handling strategies 3) Data Architecture: - Data models and schemas - Database technology selection and justification - Query patterns and optimization - Data flow through the system - Caching strategy and data consistency 4) API Design: - API architectural style (REST, GraphQL, gRPC, etc.) - Key endpoints and resources - Authentication and authorization approach - API versioning strategy - Documentation approach 5) Scalability & Performance: - Scaling strategies (vertical, horizontal) - Performance bottleneck analysis - Resource estimation models - Caching architecture - Load balancing approach 6) Security Considerations: - Authentication mechanisms - Authorization model - Data protection strategies - Security monitoring approach - Compliance requirements 7) Observability & Operations: - Logging framework - Monitoring and alerting - Deployment pipeline - Disaster recovery approach - Operational runbooks 8) Implementation Roadmap: - Phased development approach - Critical path identification - Technology stack details - Build vs. buy decisions - Team structure considerations Format this as a professional system design document with clear sections, focusing on modern best practices for maintainability, scalability, and reliability.