Here is a list of the lounges and who/what qualifies for entry. http://www.ataturkairport.com/eng/1.php

Going by just your CC card levels & economy ticket, I don't think you would qualify for entrance on that basis. You could purchase a Priority Club Pass and gain entry to the "Primeclass Lounge". http://www.prioritypass.com/CPC/Save...FSD3iAodJjA8vA

Passes can be purchased on annual or day use.

Hope this helps.