I'm nearing becoming a Black Mage. My THM is lvl 29, close to 30 and my ARC just hit lvl 10. Therefore I just unlocked ARC bonus attribute points. I'm not super fond of the ARC and am just leveling the class to get BM. How do the bonus attribute points I assign work? Will they remain just with the ARC class, or will it carry over to my BM once I unlock it?

If it carries over, I need to focus on INT and VIT since I won't be using ARC anymore past lvl 15...