A colossal arctic megacity built into a massive aurora-lit glacier formation, towering crystal spires reaching toward dancing northern lights with internal prismatic refraction, suspended solar-paneled biodome districts floating above frozen fjord highways, sleek hovercraft navigating between luminous ice arches, sky gardens with bioluminescent flora cascading over frosted terraces, deep arctic teal and electric violet palette with soft aurora glow filtering through ice walls, epic horizontal shot with tiny silhouetted scientists on illuminated observation platforms emphasizes impossible polar engineering scale, photorealistic, cinematic depth of field