archsynth edit prompt strict geometry lock use the reference image as the exact base keep identical geometry proportions openings bench layout roof base and camera angle material texture light changes only do not add remove elements do not change frame thicknesses do not warp lines exterior deep black charred wood vertical boards premium look surface is not rough burnt crust it is smooth lightly embossed subtle relief matte satin clean craftsmanship no gritty texture interior termowood warm medium brown walls ceiling vertical boards each board width 120 mm consistent spacing smooth premium finish subtle natural grain benches lengthwise boards along the bench length each board width 120 mm same warm medium brown thermowood tone smooth finish keep all bench shapes and positions exactly as in the reference glass door glass side glass grey tinted smoked glass neutral grey realistic reflections do not change glass size or placement lighting interior ceiling indirect led along the perimeter edge hidden strip warm soft glow premium minimal no visible led dots floating led under the sauna base underfloor glow subtle continuous line low intensity creates a gentle floating effect without overlighting negative do not no geometry changes no extra objects no new handles vents signage no horizontal interior boards walls and ceiling must be vertical 120 mm boards no rough charred texture outside keep it smooth and refined no flicker no distortion no melted edges
