Aurora Sentinel Coast

Prompt

A captivating fantasy seascape. The upper half features a breathtaking aurora in greens and pinks against a true deep black night sky. A lighthouse stands on a rugged basalt cliff on the lateral margin. The bottom third shows waves with frothy spray crashing against rocks. Uncluttered header area for clock readability. No watermark, no logo, no signature, no text, no UI, no mobile screen, no device frames, no interface elements, no artifacts, no borders, no margins, no cropping, no cut-off parts.