Spaceship steering limit

I'm making a script to control the spaceship using Rigidbody and localEulerAngles. I made steering the spaceship by using mouse, now my question is how would I limit the rotation. For example : Right now I'm smoothing out the rotation and I can still rotate for as much as my mouse space allows in a second. I want to have it so I can only rotate it 45 degrees from my spaceship's current rotation.

This is my current code :

 public float mouseSensitivity;
 float mouseHor;
 float mouseVer;
 private Vector3 velocity = Vector3.zero;
 private Rigidbody rb;
 
 private void Awake() {
         rb = GetComponent<Rigidbody>();
 }
 
 private void FixedUpdate() {
 
       mouseHor += Input.GetAxis("Mouse X") * mouseSensitivity;
       mouseVer -= Input.GetAxis("Mouse Y") * mouseSensitivity;
       Vector3 mouseRotation = new Vector3(mouseVer, mouseHor, 0);
       Vector3 smoothMouseRotation = Vector3.SmoothDamp(Vector3.zero,
       mouseRotation, ref velocity, 0.2f);
       transform.localEulerAngles = smoothMouseRotation;

       // MOVEMENT //

 }