Pre teen overweight daughter w/ absolutely no motivation...= (?

My daughter is 12 yrs old she is over weight & very self conscience and sometimes depressed about it. I've tried to get her active but she just has no kind of motivation. I don't let her drink soda or anything that's high in sugar...she does have a few bad eating habits that I get down on too. I NEVER get down on her for her weight though because that's mean!! She gets teased a lot and doesn't like going outside cuz she doesn't want ppl looking at her. What are some ideas to try and get her motivated to lose weight. I personally don't look at her as an over weight person & it being a bad thing...I look at it as my baby girl and wanting her to be healthy and have more confidence