Design a rectangular, modernist art museum with a floating glass box structure. The building features exposed concrete walls, a central open courtyard, and cantilevered gallery spaces. Include: A structural diagram showing cantilevered beams and supports. A detailed floor plan of gallery spaces and circulation paths. An axonometric drawing of the entire building with spatial hierarchy. A longitudinal section showcasing light shafts and atrium voids. A natural lighting diagram indicating solar penetration and shading strategies.