Not able to make fps character controller player movement.,Not able to make Fps character controller player movement properly.

,I'm trying to make an FPS player controller but my player moves in the same direction no matters in which direction the camera is facing.

Here is my player movement script :

 using UnityEngine;
 
 public class PlayerMove : MonoBehaviour
 {
 
     //Assignables
     [SerializeField]
     CharacterController controller;
 
     // The movement
     public float speed = 12f;
     public float jumpHeight = 3f;
 
     // The Gravity & GroundCheck
     public float gravity = -10f;
     public Transform groundCheck;
     public float groundDistance = 0.2f;
     public LayerMask groundMask;
     Vector3 velocity;
     bool isgrounded;
 
 
     void Update()
     {
 
         IsGrounded();
 
         PlayerMovement();
 
         PlayerJumping();
 
     }
     void IsGrounded()
     {
         isgrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);
 
         if (isgrounded && velocity.y < 0)
         {
             velocity.y = -2f; // If grounded then change the velocity to -2
         }
     }
 
     void PlayerMovement()
     {
         float x = Input.GetAxis("Horizontal") * speed * Time.deltaTime;
         float y = Input.GetAxis("Vertical") * speed * Time.deltaTime;
 
         Vector3 move = new Vector3(x, 0f, y);
 
         controller.Move(move * speed * Time.deltaTime);
 
 
 
 
 
     }
 
     void PlayerJumping()
     {
         if (Input.GetButtonDown("Jump") && isgrounded)
         {
             velocity.y = Mathf.Sqrt(jumpHeight * -2f * gravity);
         }
 
         velocity.y += gravity * Time.deltaTime;
 
         controller.Move(velocity * Time.deltaTime);
     }
 }