render a 3d architectural floor plan with a modern and minimalist style use soft white for the walls and light gray for the flooring to give a clean spacious look highlight the window frames and doors in a subtle light brown wood for warmth the horizontal surfaces of the interior structures should be a medium gray to provide contrast while the shadows should be soft and gentle suggesting soft lighting the background should be a calming light pastel gray to create an inviting atmosphere ensure the entire scene has a crisp and professional feel