apply a refined modern classic interior style to the existing 3d model preserving the original geometry and layout walls finished with clean painted panelling in a simple rectangular grid with reduced depth and subtle shadow gaps so the panelling feels quiet and understated rather than dominant overall tone in soft off white stair treads in light natural timber oak with a smooth matte finish and gently rounded edges stair structure painted to match walls with soft sculpted curves at the base balustrade formed with slender simplified balusters painted off white introduce thicker more substantial newel posts with clean minimal detailing for a stronger architectural presence handrail in a slim smooth black profile providing subtle contrast flooring in light timber laid in a parquet or herringbone pattern without any contrasting border detail junctions and transitions are crisp and well resolved with a focus on calm precise detailing rather than decoration lighting is soft even natural daylight with low contrast and no visible feature lighting creating a calm bright atmosphere materials are restrained and cohesive pale timber off white painted surfaces and minimal black accents overall style is elegant minimal and contemporary with classical influence quiet refined and architectural apply style only no major geometry changes
