create an ultra realistic luxury interior stair render based exactly on the provided archicad screenshot keep the same architecture stair position stair proportions side cladding wall form floor layout opening positions and camera angle exactly as shown do not change the design or geometry in any way main goal make this render look fully realistic elegant and professionally photographed not cgi improve realism in materials wood texture lighting shadows reflections and detailing keep the atmosphere warm minimal and premium wood finish match the stair cladding and all wood surfaces to the previously provided dark warm walnut smoked walnut reference use a luxury dark walnut veneer with rich natural grain subtle tonal variation seamless texture mapping and a premium matte satin finish keep the tone elegant and deep not too red not too orange not too black and not grey the stair wood should feel refined architectural and realistic floor keep the floor as oak parquet herringbone wood flooring make it realistic with natural oak grain correct plank scale subtle tonal variation realistic joints and a premium matte finish add believable light reflection and natural wood depth stairs keep the stair design exactly as shown add a modern glass railing to the stairs the railing should be minimal elegant and contemporary with clean transparent glass panels and discreet refined detailing make the railing feel integrated into the design and realistic suitable for a luxury interior do not make it bulky or ornamental openings remove all opening lines from doors windows and all visible openings keep all openings clean minimal and realistic lighting and realism use soft natural daylight and balanced interior lighting add realistic contact shadows ambient occlusion subtle reflections and natural light falloff improve realism of all surfaces and edges so the image feels like a real interior photograph material realism make the wall surfaces wood cladding stair treads glass and floor physically accurate and high resolution add subtle imperfections and realistic material response keep everything polished premium and believable important do not change the design do not change the stair proportions side wall cladding form or layout do not move architectural elements only improve realism wood finish remove visible opening lines and add a modern glass stair railing add this line too make the final image look like a professionally photographed luxury staircase interior with premium walnut veneer realistic oak parquet flooring minimal glass railing and refined architectural lighting
