Nordlys

Create **Nordlys** — a full-screen, living animation of the aurora borealis over a dark Arctic tundra. The goal is a single, mesmerising scene someone would leave running on a screen to unwind: ribbons and curtains of light that drift, brighten, fold and fade across a starlit night sky above a low frozen horizon. What the scene should have: - A believable aurora — not a static gradient, but soft luminous bands that move and change over time, with the greens, and hints of violet and rose, that real auroras show. - A sense of place beneath it: a dark horizon — snow, distant hills, perhaps a lone silhouette — and a sky with stars. - Life over time: the display should never quite repeat, waxing and waning as if you're really watching the sky. - At least one moment of interaction or ambient response (the aurora reacting to the cursor, to time, to a gentle breeze — your call) so it feels alive rather than looping. The register is serene, luminous, and cosmic — quiet awe, cold air, deep space just overhead. Smooth, unhurried motion matters more than detail count. Render everything in code (canvas, WebGL, or SVG/CSS); use no external images, video, or network libraries. This challenge stresses **atmosphere and animation craft** — colour, light, and organic motion. All design decisions — technique, palette, composition, interaction — are yours. There is no single right answer; make something with a point of view.