Vibrant gymnasium interior, postmodernist architectural style, bold geometric shapes, neon-colored accents, sleek metallic surfaces, polished wooden floors, retro-futuristic lighting fixtures, dynamic color blocks, abstract artistic murals, graffiti-inspired patterns, eclectic mix of textures, bold typography, avant-garde furniture design, urban industrial atmosphere, high-contrast color palette, 80s-inspired nostalgia, warm ambient glow, shallow depth of field, 2/3 composition, cinematic lighting, stylized realistic render.