low-poly exhibition hall 3d model

A square single-story exhibition hall building, 40 meters wide, 40 meters long, 4 meters high. White matte metal exterior walls with large floor-to-ceiling glass windows. Flat roof with luminous ceiling panels. Interior: open plan, no internal walls, light gray grid floor, white micro-cement walls. South side: two adjacent openings for entrance and exit, each 3 meters wide. Simple geometric architecture, modern minimalist style, sci-fi ambiance, clean lines, no decorations, no exhibits, no furniture, no plants. Low-poly, 3D model, white background.