/* scrollscene: pinned scroll-driven canvas. Theme with --ss-* custom properties. */
.ss{--ss-top:0px;--ss-bottom:0px;--ss-len:420svh;--ss-accent:#40a040;--ss-ink:#fff;--ss-bg:#0b1b26;position:relative;background:var(--ss-bg);color:var(--ss-ink)}
.ss-track{position:relative;height:var(--ss-len)}
.ss-stage{position:sticky;top:var(--ss-top);height:calc(100svh - var(--ss-top));overflow:hidden;background:var(--ss-bg)}
.ss-stage canvas,.ss-still{position:absolute;inset:0;width:100%;height:100%;display:block;object-fit:cover}
.ss-still[hidden]{display:none}
.ss-stage::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,rgba(0,20,32,.55) 0,rgba(0,20,32,0) 32%,rgba(0,20,32,0) 45%,rgba(0,20,32,.82) 100%)}
.ss-chip{position:absolute;z-index:3;right:14px;top:14px;margin:0;padding:5px 11px;border-radius:999px;background:#fff;color:#002840;font:700 .75rem/1.2 system-ui,sans-serif;letter-spacing:.02em}
.ss-beats{position:absolute;z-index:2;left:0;right:0;bottom:calc(var(--ss-bottom) + 76px);padding:0 20px;max-width:1160px;margin:0 auto;pointer-events:none;min-height:9.5rem}
.ss-beat{position:absolute;left:20px;right:20px;bottom:0;opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.ss-beat.on{opacity:1;transform:none}
.ss-h{margin:0 0 6px;font-size:clamp(1.7rem,5.6vw,3.2rem);line-height:1.05;color:var(--ss-ink)}
.ss-sub{margin:0;max-width:34em;font-size:clamp(1rem,2.6vw,1.25rem);color:#e3eef6}
.ss-picker{position:absolute;z-index:3;left:20px;bottom:calc(var(--ss-bottom) + 14px);display:flex;flex-wrap:wrap;gap:8px}
.ss-pick{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 16px 0 10px;border-radius:999px;border:2px solid rgba(255,255,255,.7);background:rgba(0,20,32,.55);color:#fff;font:600 .92rem system-ui,sans-serif;cursor:pointer;box-shadow:none}
.ss-pick[aria-pressed=true]{background:#fff;color:#002840;border-color:#fff}
.ss-pick:focus-visible{outline:3px solid var(--ss-accent);outline-offset:2px}
.ss-sw{width:20px;height:20px;border-radius:50%;border:2px solid #fff;flex:none}
/* reduced motion: one still frame, beats become normal stacked text */
.ss-reduced .ss-track{height:auto}
.ss-reduced .ss-stage{position:relative;top:auto;height:auto;overflow:visible;display:flex;flex-direction:column}
.ss-reduced .ss-stage::after{display:none}
.ss-reduced canvas,.ss-reduced .ss-still{position:relative;height:min(62svh,520px);order:1}
.ss-reduced .ss-chip{top:14px}
.ss-reduced .ss-beats{position:static;order:2;padding:20px;min-height:0;pointer-events:auto}
.ss-reduced .ss-beat{position:static;opacity:1;transform:none;transition:none;margin-bottom:18px}
.ss-reduced .ss-picker{position:static;order:3;padding:0 20px 20px}
.ss-reduced .ss-pick{background:transparent;color:#fff}
.ss-reduced .ss-pick[aria-pressed=true]{background:#fff;color:#002840}
@media (prefers-reduced-motion:reduce){.ss-beat{transition:none}}