transform the staircase into a refined minimalist contemporary design inspired by the reference images the staircase must be fully closed without any open risers or gaps between the steps use warm natural light oak for both the treads and risers creating a continuous solid wooden staircase with clean monolithic geometry keep the wood tone natural muted and sophisticated no orange or yellow wood tones create a full height solid balustrade closed stair wall finished in smooth matte warm white the balustrade must be completely opaque with no glass no vertical bars no metal railing and no openings keep its shape simple architectural and minimal following the staircase line with crisp clean edges the large window located behind the staircase must remain in its existing position and proportions change the window frame to matte black creating a strong but elegant contrast with the light oak staircase and warm white walls use a sophisticated material palette of warm white creamy beige natural light oak and subtle natural stone consistent with a high end contemporary residential interior walls should have a smooth matte warm off white plaster finish add subtle warm integrated lighting along the staircase preferably concealed led lighting softly illuminating the steps and emphasizing the sculptural form lighting should be discreet and architectural around 2700 3000k never overly bright or decorative create a calm sophisticated atmosphere with soft natural daylight coming through the black framed window realistic shadows and gentle warm artificial lighting style warm minimalism contemporary european interior architectural luxury subtle 1970s influence natural materials timeless and understated photorealistic architectural visualization realistic oak grain soft global illumination editorial interior photography subtle contrast no excessive decoration no cold grey tones no glossy finishes important closed solid wooden staircase closed risers no gaps between steps solid white balustrade no glass railing no metal railing matte black window frame preserve the original staircase location architecture and camera composition
