it's been a long time since I stayed there, but I just visited the food court on 1/2 for breakfast, so I can start you off with some things about that area.
The food court, a sit down restaurant, bar, large shop, arcade and the check in area are all in the same building. The rear and side exits of the building go out onto a boardwalk along the water. Some of the door have steps to lead to the boardwalk, but look around a bit and you will find the ramped exits. I don't recall them being marked in any way.
The ladies room in that area has a large handicapped stall (one of the ones with a sink and ample room for manouvering - I didn't go in that stall on this trip since DD wasn't with me, but I did go in the restroom and it didn't appear they had changed that stall).
The food court area is down a ramp from the check in area. you order the food at about 4 individual "shops", but there is a central check out area for paying. There are refrigerated cases with prepacked salads, fruit, juice. The food ordered from the shops is presented on paper plates with clear plastic "bubble" covers (so could be balanced on a tray or lap without spilling.
There are some large round tables that we've found are great for DD while sitting in her wheelchair.
Some people in the past have found that the boardwalk is kind of rough to drive over - we haven't had that problem, DD thought it was funny.
The main pool is in the same area. We walked back there, but didn't really look around. I know it's not zero entry, but I don't know whether or not it has bump steps.