Done?

Assets/Scripts/UI/GameplayUI.cs

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+using UnityEngine;
+using TMPro;
+using Objects;
+
+public class GameplayUI : MonoBehaviour
+{
+    [SerializeField] private GameObject uiContainer;
+    [SerializeField] private TextMeshProUGUI timerText;
+    [SerializeField] private TextMeshProUGUI movesText;
+    [SerializeField] private GameObject winUI;
+
+    private float gameplayStart;
+    private int moves;
+    private bool isRunning;
+
+    private void Start()
+    {
+        winUI.SetActive(false);
+        uiContainer.SetActive(false);
+        GameManager.Instance.GameStateChanged += OnGameStateChanged;
+        Player.Instance.PlayerMoved += () => moves++;
+    }
+
+
+    private void Update()
+    {
+        if (isRunning)
+        {
+        //     Debug.Log(Time.time - gameplayStart);
+            timerText.text = (Time.time - gameplayStart).ToString("F0");
+            movesText.text = moves.ToString();
+        }
+    }
+
+
+    private void OnDestroy()
+    {
+        GameManager.Instance.GameStateChanged -= OnGameStateChanged;
+    }
+
+
+    private void OnGameStateChanged(GameState newState)
+    {
+        bool isGameplay = newState == GameState.Gameplay;
+
+        uiContainer.SetActive(isGameplay);
+        winUI.SetActive(false);
+        
+        if (isGameplay)
+        {
+            gameplayStart = Time.time;
+            moves = 0;
+        }
+
+        isRunning = isGameplay;
+    }
+
+
+    public void ShowWinScreen()
+    {
+        isRunning = false;
+        winUI.SetActive(true);
+    }
+}