I have a potential LTR lined up, cool girl I would date and we clicked.

Her birthday is soon and we are in different cities + corona restrictions so we wont see each other and she wont even celebrate it. Anyways, how do I wish her a happy birthday to let her know that: 1. its not just friendly but a bit flirty 2. I do not act like a simp and give her 20 compliments and wishes ?