Its plush and cutting-edge tones are choreographed with dramatic angles, jarring plunges and hard surfaces softened by sloping ceiling soffits, rounded angle points, rich wood, deep reds and sumptuous fabrics. And chef/owner Kent Rathbun's food employs as much dipping, lunging, sloping and breathy sweeping as the atmosphere, albeit with more aroma. Rathbun draws from a variety of influences--Asian, New American, Southwestern--stirring them in his state-of-the-art kitchen to craft atypical compositions that astonish without alarming. To keep things graspable, Abacus embraces consistency: The food is uniformly clean and top-notch, while the hectic décor follows an endlessly repeated design cue: squares tucked within squares. Everything in this restaurant is just a little offbeat, and perhaps no other presents unusual opulence and elaborateness as shrewdly. The bathrooms are clean and well-appointed, too. Fancy that.