a serene empty classroom with desks and chairs, illuminated by soft light against a cyan wall with a whiteboard, reflecting a

classroom empty serene desks chairs light cyan whiteboard teacher principal room setup educational peaceful academic school interior architecture design modern clean organized tranquil bright learning education workspace professional neat office study calm minimalistic inviting environment soft lighting class structured discipline focus simplicity purity fresh untouched airy quiet still abstrat art background ai generative generated 3d