How are the headlights on a 14 Focus SE?

So debating getting HID lights for my 14 Focus SE.

Curious - I have 3 lights - or at least 3 settings - DRL, Headlights, and high beams.

So are these 3 separate bulbs? ie if I add HID's, do I lose DRL (which I never really use) or do I lose high beams?

And - my previous car was a 04 Hyundai Sonata - I added HID's, and they sucked. Apparently, you need a - sorry forgot the name of it - reflector? designed for HID's. It basically was the internal housing the headlights sit in. Since the stock one was designed for regular halogen or whatever bulbs, the HID didn't work optimally. Will I still need to replace that if I add HID's on the Focus?

Thanks :)