Modern gymnasium, international style architecture, clean lines, minimal ornamentation, functional design, rectangular forms, flat roofs, large windows, glass fa\u00e7ades, steel frames, concrete structures, open spaces, athletic tracks, basketball courts, volleyball nets, sports equipment, sleek flooring, wooden accents, natural light, high ceilings, neutral color palette, subtle textures, ambient lighting, shallow depth of field, 3/4 composition, realistic render.