Minimalist gymnasium interior, exposed concrete walls, polished metal beams, industrial-style lighting fixtures, sleek wooden floors, mirrored surfaces, angular lines, geometric shapes, suspended staircases, cantilevered walkways, open-plan spaces, high ceilings, abundant natural light, subtle color palette, functional minimalist design, modern athletic equipment, free weights, treadmills, exercise bikes, resistance machines, motivational quotes, urban chic ambiance, 1/2 composition, shallow depth of field, softbox lighting.