Teenger here, age 17. I wasn’t raised in a strict home, but I’m best friends with a girl who was. She sounds a lot like your daughter in some ways, OP.
“Our youth now love luxury. They have bad manners, contempt for authority; they show disrespect for their elders and love chatter in place of exercise; they no longer rise when elders enter the room; they contradict their parents, chatter before company; gobble up their food and tyrannize their teachers.” – Socrates.
In other words, teens going their own way and being disrespectful of adults is not a new occurance. I’m pretty sure it’s just how teenagers are.
There comes a point in time when children are required to make their own decisions. My friend’s mother was very controlling about certain little things- her daughter always had to eat healthy food, always had to say “thank you” and “please” and respond to her mother in complete sentences without using certain words. She could be (and often was) sent to her room for rolling her eyes or sighing. At eight this was perhaps appropriate. At sixteen, whether it was or wasn’t, it was counter-productive. I especially remember the mother’s control of which words could be said and which tones could be used, because it made it so hard to communicate. They fought many battles- over modesty, and dating, and where the daughter could go. But all of the battles came back to how the mother would not listen to the daughter, and how the daughter would not listen to the mother. In the end, the daughter started acting out. She sneaked out of the house. She had a “secret” facebook account that didn’t use her real name, but which all her friends knew about. She had at least three boyfriends that her parents were completely unaware of. She decided that she could not trust her parents, because they gave her responsibilities but would only allow her to express herself in the manner of a child.
Meanwhile, I never went through a period of significant rebellion (or at least, I haven’t yet). I never felt the need. My parents were always ready to give advice, but they made lots of compromises and offered lots of choices and allowed me to express myself in pretty much any way I wanted, as long as it wasn’t dangerous. And when I offered my side of the story, they listened.
Basically, you can’t control a teen’s behavior 100%. If you try to, they will usually rebel completely. I think it’s best if the teen is given increasing control over what she can and cannot control. Dress is something that I would give a 17-year-old almost complete control over, even if I didn’t agree with what she chose to wear. You should still offer advice, of course, but I think it will do more harm than good if you over-control something that is not terribly important in the long run. It’s best to pick your battles carefully at this stage.