Yes, I am now level 26! Sweetness.

I just found out that my Gardevoir actually has maxed out EVs right now, so either the Sp. Atk got maxed out and then the other EVs maxed out, or it had already maxed out all its EVs when I tried to give it more Calcium. It just got the Effort Ribbon, which is awarded when a pokemon has maxed out EVs. I hope the Sp. Atk was high enough, at least.