Grandstands Under a Luminous Skin: Lightweight Roof and Open Hall

Design a stadium interior inspired by Allianz Arena. Create a continuous seating bowl with excellent sightlines, lightweight roof structures, integrated lighting systems, open concourses, exposed structural steel, and restrained material detailing. Emphasize immersive spectator experience through clarity, openness, and luminous atmosphere. A steep continuous bowl of red seats with no interruption between tiers, translucent ETFE roof cushions glowing softly overhead, exposed white steel trusses, wide open concourses visible at the bowl edge, floodlit turf below, evening light with the roof lit from within, wide view from the upper tier, 24mm lens, interior photography, ultra photorealistic, 8K