Lighthouse Adrift in a Portal Chamber

A colossal lighthouse stands inside a vaulted portal chamber, its weathered brickwork wrapped in humming runic circuits. The chamber is circular with high glassy ceilings and branching archways that shimmer with electric portals to alternate seascapes and starfields. The lighthouse beam slices through a misty, salt-tinged air, illuminating floating dust and chrome valves, gears, and latticework along the chamber walls. The floor is reflective, like polished obsidian, mirroring the lighthouse and the portals. The scene is rendered as concept art with painterly digital textures, bold brushwork, and cinematic lighting. Color palette: deep midnight blues and sea greens for the chamber, warm amber and gold from the lighthouse beacon, with iridescent purples and cyans from the portals. Style: science-fantasy, surreal, epic scale; viewpoint: wide-angle, slightly low perspective to emphasize height; mood: awe-inspiring, mysterious, otherworldly.