Ascending Brutalist Staircase with Luminous Origami Cranes

Full prompt

A 3:2 aspect ratio website hero composition presenting a sweeping raw concrete spiral staircase rising across an open-air Brutalist atrium into a deep ultramarine twilight sky. Cantilevered stepped platforms curve gracefully from the lower left toward the upper right, populated by dozens of life-sized origami paper cranes that emit a warm, golden bioluminescence from within their translucent washi paper folds. Architectural formwork seams and coarse aggregate textures on the monolithic walls contrast with the delicate paper birds, while the open architectural void on the left provides serene negative space suitable for title headers. Soft atmospheric moonlight skims the Brutalist structure, balancing cool shadows with glowing amber steps.