Eco-friendly gymnasium, lush green roof, solar panels, rainwater harvesting system, natural ventilation, recycled materials, bamboo flooring, living walls, vertical gardens, energy-efficient lighting, minimalist interior design, large windows, panoramic views, bright natural light, airy atmosphere, comfortable temperature control, modern sustainable architecture, futuristic design elements, sleek lines, curved shapes, vibrant green accents, soft warm lighting, shallow depth of field, 3/4 composition, realistic textures, ambient occlusion.