render a modern gym interior featuring a sophisticated floor plan design the floor with polished beige marble tiles creating a smooth reflective surface the walls should be painted in soft neutral gray to provide a calming ambiance incorporate sleek black and silver exercise equipment adding a touch of elegance install large floor to ceiling windows along the bottom allowing natural light to pour into the space design a minimalistic reception area with a light wood desk and white accents create an atmosphere that is bright airy and inviting with a focus on clean lines and modern elegance