光の教会：静水が聖域を拡張する

Design a sacred building where still water becomes an extension of the sanctuary, reflecting sky, landscape, and architecture into one unified spiritual experience inspired by Tadao Ando. A chapel opening completely onto a shallow rectangular pond with a single cross standing in the water, the wall fully retracted so nothing separates interior from pond, birch forest beyond, windless mirror surface, soft overcast daylight, eye-level symmetrical composition, 35mm lens, architectural photography, ultra photorealistic, 8K