sunken living room conversation pit with 70s retrofuturism interior design, featuring an imaginary 3d dreamy architecture render in 8k resolution, soft pastel color palette with shades of beige and muted earth tones, circular seating around a geometric center table, ambient lighting from spherical fixtures, walls adorned with abstract art, large floor-to-ceiling windows offering a glimpse of a serene futuristic landscape, an inviting and ethereal atmosphere