Modern gymnasium interior, high ceilings, natural ventilation, clerestory windows, solar tubes, energy-efficient LED lighting, recycled rubber flooring, eco-friendly paint, sustainable materials, minimalist design, open spaces, athletic equipment, basketball courts, volleyball nets, exercise machines, mirrored walls, motivational quotes, bright color schemes, soft warm lighting, shallow depth of field, 3/4 composition, panoramic view, realistic textures, ambient occlusion.