Modern gymnasium, sustainable materials, recycled rubber flooring, eco-friendly walls, translucent polycarbonate panels, energy-efficient roofing, solar-powered lighting, minimalist interior design, sleek metal beams, open spaces, natural ventilation systems, anti-microbial coatings, shock-absorbing surfaces, durable finishes, water-resistant membranes, flexible acoustic panels, vibrant color schemes, dynamic architectural forms, 3/4 composition, soft warm lighting, shallow depth of field, realistic textures.