variable "vpc_id" {
  description = "ID of the VPC"
  type        = string
}

variable "public_subnet_ids" {
  description = "List of public subnet IDs for the ALB"
  type        = list(string)
}

variable "security_group_id" {
  description = "ID of the security group to attach to the ALB"
  type        = string
}

variable "instance_id" {
  description = "ID of the EC2 instance to register with the target group"
  type        = string
}

variable "certificate_arn" {
  description = "ARN of the ACM certificate for HTTPS listener"
  type        = string
}

variable "project" {
  description = "Project name used for resource naming and tagging"
  type        = string
}

variable "environment" {
  description = "Environment name (e.g. dev, staging, prod)"
  type        = string
}