variable "name" {
  description = "Name prefix used for the VPC and related resources."
  type        = string
}

variable "cluster_name" {
  description = "EKS cluster name used to tag subnets so the AWS Load Balancer Controller can discover them."
  type        = string
}

variable "cidr" {
  description = "CIDR block for the VPC."
  type        = string
  default     = "10.0.0.0/16"
}

variable "azs" {
  description = "Availability zones to spread subnets across."
  type        = list(string)
  default     = ["us-west-2a", "us-west-2b", "us-west-2c"]
}

variable "private_subnets" {
  description = "Private subnet CIDRs (one per AZ, in matching order)."
  type        = list(string)
  default     = ["10.0.1.0/24", "10.0.2.0/24", "10.0.3.0/24"]
}

variable "public_subnets" {
  description = "Public subnet CIDRs (one per AZ, in matching order)."
  type        = list(string)
  default     = ["10.0.101.0/24", "10.0.102.0/24", "10.0.103.0/24"]
}

variable "single_nat_gateway" {
  description = "When true, all private subnets route through a single NAT gateway (dev). When false, one NAT per AZ (prod)."
  type        = bool
  default     = true
}

variable "tags" {
  description = "Tags applied to every resource."
  type        = map(string)
  default     = {}
}