use the uploaded model image as the exact design and geometry reference render this sauna concept as a high end realistic interior exterior architectural visualization preserve the exact geometry proportions bench layout heater position glass walls door position ceiling height and overall spatial arrangement exactly as shown do not redesign the sauna do not change the layout do not add windows decorations accessories or extra architectural elements material specification interior walls and ceiling clad in brushed thermo alder horizontal wood boards 120 mm wide warm medium brown thermo alder tone refined premium brushed wood texture minimal elegant scandinavian wellness character glass specification front and side glazing in very dark grey tinted glass strongly toned smoked glass appearance clean premium glass surfaces with subtle reflections slim dark framing only lighting indirect led lighting integrated along the ceiling perimeter light directed softly downward along the walls warm white led glow subtle premium ambient atmosphere no visible light source only indirect illumination effect sauna specification total sauna height 250 cm compact two person sauna layout preserve the cylindrical stone heater exactly in the shown position maintain the intimate premium architectural feel of the concept visual style ultra realistic architectural render premium wellness design clean neutral background no people no towels no plants no additional objects focus on wood texture tinted glass lighting and realistic material depth soft shadows balanced contrast elegant composition
