How did Satan become unperfect?

Okay God is perfect, God is everything, God made everything. How can there possibly be an absence of God? The absence of god is evil. The only way for God to allow satan to even have a speck of pride, or evil, meant that god would have had to remove himself from Satan. How can pride or evil come out of such a perfect place wherever Satan and God were before Lucifer fell? Don't forget, PERFECTION MEANS EVERYTHING IS PERFECT AND THERE WILL NEVEEEEEEEEEEER EVER EVER FOR ETERNITY BE AN IMPERFECTION! AN IMPERFECTION WILL NEVER HAVE ROOM IN PERFECTION!