create a high end architectural tiles showroom interior keep the exact geometry layout camera angle and proportions unchanged transform the staircase into a monumental architectural feature replace current steps with large format premium stone slabs travertine marble or limestone look tiles make each step thicker and more solid minimum 6 8 cm visual thickness add integrated warm led strip lighting under each step tread floating effect extend the first 2 3 steps wider to create a grand base podium feeling add a minimal glass railing or hidden recessed railing system for a clean luxury look enhance the showroom environment apply large format tile flooring 120x120 or bigger seamless high end finish use vertical wall panels as tile display surfaces with subtle variation in textures stone concrete marble keep walls minimal but intentional not empty make them feel like curated display blocks add a feature wall behind or near the staircase with premium book matched marble tiles ceiling and lighting keep concrete ceiling but refine it smooth architectural look add recessed linear lighting following the ceiling geometry add spotlights to highlight wall tile displays and staircase lighting temperature warm neutral 3000k 3500k materials tone palette neutral luxury beige stone warm grey light travertine subtle veining matte satin finishes avoid glossy overload everything should feel premium minimal architectural not decorative rendering style ultra realistic sharp high end architectural visualization soft shadows global illumination clean uncluttered no random accessories