modernist exterior shot render a modern minimalist indoor staircase with a floating design the walls should be a smooth matte white color the floating staircase steps should be crafted from polished wood with a light oak finish the floor should be a sleek polished concrete in a light gray tone introduce soft natural light streaming in from a nearby window creating gentle shadows the atmosphere should feel clean airy and spacious with a sense of modern elegance the ceiling should be a simple white with subtle recessed lighting add contemporary art pieces with a minimalist style on the walls to enhance the aesthetic architecture