modernist interior from the top render an elegant modern indoor staircase with floating steps use a sleek minimalist design with white walls and stairs and a polished dark wood for the steps paint the walls in a soft neutral gray tone let the floor be a polished light ash hardwood add subtle warm lighting with led strips under each step creating a cozy and inviting atmosphere place a modern vertical garden on the wall opposite the staircase featuring lush green plants to add a touch of nature emphasize the open space with large windows that let in plenty of natural light using transparent glass for the railing to maintain an airy feel architecture