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Create a horizontal cloud-architecture diagram of a production microservices system, organized left-to-right in tiers. Left tier: client icons (Web App, Mobile App) feeding a CDN, then an API Gateway with a Load Balancer. Center tier: five containerized services drawn as Kubernetes pods labeled Auth, Orders, Payments, Inventory, Notifications, each attached to its own database (Orders to PostgreSQL, Inventory to MongoDB) with a shared Redis cache and a Kafka event bus running horizontally underneath to connect services asynchronously. Show auto-scaling badges like "3/8 pods" on two services. Right tier: an observability side-panel reading p99 latency 120 ms, throughput 8.5k req/s, error rate 0.3%. Draw labeled request-flow arrows tracing a checkout transaction: Client to Gateway to Orders to Payments to Inventory, with Kafka publishing an event to Notifications. Use a clean light background, blue and teal service tints, numbered arrow steps, and crisp sans-serif labels.
