A photorealistic close-up shot of a reinforced concrete slab foundation (raft foundation) under construction. The view is slightly isometric, showing the edge of the monolithic concrete slab with a smooth, slightly matte surface. Visible details: a grid of steel rebar (10–12 mm diameter) protruding from the concrete edge, a layer of extruded polystyrene insulation (XPS) in bright pink or blue color beneath the slab, a black waterproofing membrane on top of the gravel bed. In the foreground – compacted sand and gravel base. The background shows excavation pit walls with geotextile. Natural daylight, overcast sky, soft shadows, high resolution, 8K, architectural construction photography, depth of field focused on the slab edge. No people, no tools. --ar 16:9 --style raw --v 6