Portal Chamber Over Neon Mountain

Inside a high-tech portal chamber carved into a sheer cliff, a gigantic circular gateway hums with neon circuitry. The chamber blends brutalist metal and translucent crystal, rain slicking every surface and reflections dancing on the polished floor. Through the glowing ring, a colossal mountain range rises under a stormy sky, its jagged peaks edged with electric cyan and magenta highlights. Holographic panels flicker with glyphs while drones hover near the ceiling. A lone traveler in a reflective cyberpunk coat stands by the portal, casting a long chrome shadow. The scene is cinematic and moody, with rim lighting, mist, and neon glow, evoking a gritty yet awe-inspiring sci-fi vibe.