if (!File.Exists(saveTechtreePath))
        {
            skillTreeUiToDisable.SetActive(false);
        }
        else
        {
            CollectSkillSlots();

            string json = File.ReadAllText(saveTechtreePath);
            TechTreeSaveData techTreeData = JsonUtility.FromJson<TechTreeSaveData>(json);

            foreach (var slot in skillSlots)
            {
                if (slot.skillSo == null)
                    continue;

                SkillData savedSkill = techTreeData.skills.Find(s => s.skillId == slot.skillSo.skillId);
                if (savedSkill != null)
                {
                    slot.SetLocked(savedSkill.level);
                    slot.SetUnlocked(savedSkill.level);
                }
            }
        }