Modern stadium architecture, sleek curved lines, durable concrete structures, vibrant green roofs, retractable roofing systems, state-of-the-art LED lighting, comfortable seating areas, ergonomic chair designs, sturdy metal railings, transparent glass fa\u00e7ades, sustainable building materials, eco-friendly insulation systems, advanced climate control technologies, open-air concourses, natural ventilation systems, urban cityscape backdrop, clear blue sky, sunny day, shallow depth of field, 1/1 composition, realistic textures, ambient occlusion.