Create a shell-like habitat in a freezing, flooded environment where towering mountains are being swallowed by rising icy waters. The habitat should resemble a large, protective shell, made of translucent, insulated materials that glow faintly in the cold. It rests on the surface of the water, partially submerged, with reinforced supports anchoring it to the rocky, crumbling mountainsides. The surrounding landscape features jagged mountain peaks sinking into dark, frigid waters, with glaciers and icebergs floating nearby. The sky is overcast with heavy, dark clouds, and snow falls gently, while freezing mist rises from the water."