photorealistic product render of a modern outdoor sauna based on a minimal cubic design exterior facade made of black fundermax max compact panels deep matte black industrial look panels arranged in a clean grid with clearly visible narrow shadow gaps between panels sharp edges precise construction no rounded corners front full height grey tinted glass wall with slim black aluminium frame glass should look thick and architectural not glossy or decorative interior light thermo wood interior with horizontal wooden boards two level sauna benches made from the same light thermo wood clean minimal premium finish lighting soft neutral architectural lighting subtle indirect interior light no dramatic mood style ultra minimalist premium industrial outdoor wellness product studio background neutral grey floor no people no plants no environment high realism sharp focus no artistic stylization
