Problem on collision between object

When I move the player (in this case is the light-blue cube ) and i go to the green big block , the player go inside for half into the green block.

if u want check my code for player control

 using UnityEngine;
 using System.Collections;
 
 public class Controller : MonoBehaviour {
 
     public float Velocita = 5;
     Quaternion rotation;
     public GameObject Spawn;
 
     void Awake()
     {
         rotation = transform.rotation;
     }
     
     void LateUpdate()
     {
         transform.rotation = rotation;
     }
     
     // Update is called once per frame
     void Update () 
     {
 
                                                      /*     x   |   y   |   z     */
                     Vector3 Up_Right     = new Vector3(0.2f   , 0.0f ,  0.0f);        
                     Vector3 Up_Left      = new Vector3(0.0f   , 0.0f ,  0.2f);
                     Vector3 Down_Right   = new Vector3( 0.0f  , 0.0f , -0.2f);
                     Vector3 Down_Left    = new Vector3(-0.2f  , 0.0f ,  0.0f);
                     Vector3 Resapawn     = new Vector3(-0.2f  , 0.0f ,  0.0f);
                     
 
         
         if( Input.GetKey(KeyCode.A) || Input.GetKey(KeyCode.LeftArrow))
         {
             
             gameObject.transform.Translate(Vector3 Down_Left);
         }
         
         if( Input.GetKey(KeyCode.D) || Input.GetKey(KeyCode.RightArrow))
         {
             
             gameObject.transform.Translate(Up_Right);
         }
         
         if( Input.GetKey(KeyCode.W) || Input.GetKey(KeyCode.UpArrow))
         {
             
             gameObject.transform.Translate(Up_Left);
         }
         
         if( Input.GetKey(KeyCode.S) || Input.GetKey(KeyCode.DownArrow))
         {
             
             gameObject.transform.Translate(Down_Right);
         }
 
         if (Input.GetKeyDown (KeyCode.R)) 
         {
             gameObject.transform.position = Spawn.transform.position;
         }

     }
 }