TITLE: KP 7 — aurora forecast
PROMPT: Build 'KP 7 — AURORA FORECAST', an aurora-hunter's field page. Night-sky hero: layered translucent curtains (SVG turbulence + gradient fills, slow billow), stars, snow-dusted pines silhouetted; a KP-index arc gauge, 27-day outlook micro-bars, and a webcam-style still with timestamp. Palette: polar night indigo, curtain green-violet, ice white. Interactions: a KP slider (0–9) intensifies curtain brightness, speed and southern reach with a HUD readout of estimated visibility latitude; play runs a substorm sequence (quiet → explosion → corona); a camera toggle overlays long-exposure simulation. Scientific romance, cold air, green fire.
DESCRIPTION: A polar-night field page: three layered SVG aurora curtains (feTurbulence-displaced gradient bands on independent billow loops, screen-blended) over a starfield with twinkle, a glowing moon, and a hand-drawn pine-ridge silhouette. The glass HUD shows a live KP readout with estimated visibility latitude, a 0–9 KP slider that brightens/accelerates/lower-hangs the curtains in real time, a SUBSTORM button running a choreographed quiet→explosion→decay sequence, and a long-exposure camera mode (lighten blend + blur). A live webcam card glows in sync with activity; below, a 27-day outlook of clickable KP bars with day labels and a reading-the-sky explainer.
TECHNIQUES: SVG feTurbulence + feDisplacementMap curtain distortion with layered billow keyframes and skew/scale morphing, screen/lighten blend modes, KP-mapped filter chains (blur/saturate/brightness) and curtain altitude, latitude estimation formula, choreographed substorm timeline, generated 27-day forecast bars with click-to-load, glassmorphic HUD, hand-authored pine silhouette path.
INTERACTION: Drag the KP slider to storm level and watch brightness, saturation and southern reach change with the latitude readout; run the substorm sequence; toggle long-exposure; click any outlook bar to load that day's KP; the webcam clock ticks UTC.