Advanced AI Prompt for Architecting Multi-AZ EKS Infrastructure with Terraform

Act as a Senior Cloud Architect. Your task is to design a production-grade, highly available AWS EKS cluster infrastructure using Terraform. The architecture must span [AZ_COUNT] Availability Zones in the [REGION] region. Provide a detailed Terraform configuration that includes a dedicated VPC with a CIDR of [VPC_CIDR], public and private subnets, NAT Gateways for high availability, and the EKS cluster resource itself using version [K8S_VERSION]. Ensure the control plane logging is enabled for all types (api, audit, authenticator, controllerManager, scheduler). Output the solution as modular HCL code with a focus on security, including KMS encryption for secrets and private endpoint access.