/* image-ring runtime — WebGL-Fotoringe mit Scroll-Pin (alles gescoped
   unter .ms-image-ring). Die Root ist bei useWindowScroll=false SELBST der
   Scroller (Festhöhe aus dem height-Feld, kein 100vh) — Scrollbar
   versteckt, Pin-Strecke = Track. Das Content-Window-Panel (.hud*) stammt
   aus _shared/hero-chrome.css — der Preview-Host und die Demo binden es
   selbst ein. Die Canvas-Fläche bleibt transparent (Post-Pass mit
   Pre-multiplied Alpha), Hintergrund malen die CSS-Layer darunter. */

.ms-image-ring {
  position: relative;
  width: 100%;
  overflow: hidden; /* Fallback; .is-scroller schaltet auf Scrollen */
  overscroll-behavior: auto;
  overflow-anchor: none;
}

.ms-image-ring.is-scroller {
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.ms-image-ring.is-scroller::-webkit-scrollbar { display: none; }

.ms-image-ring .msr-track {
  position: relative;
  width: 100%;
}

.ms-image-ring .msr-stage {
  position: sticky;
  top: 0;
  width: 100%;
  overflow: hidden;
  background-color: #0c0c0c;
}

.ms-image-ring .msr-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
}
.ms-image-ring .msr-bg.is-on { opacity: 1; }

.ms-image-ring .msr-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.ms-image-ring .msr-canvas-host {
  position: absolute;
  inset: 0;
  z-index: 2;
  touch-action: pan-y;
  cursor: grab;
}
.ms-image-ring .msr-canvas-host.is-dragging { cursor: grabbing; }
.ms-image-ring .msr-canvas-host.is-scroll-only { cursor: default; }

.ms-image-ring .msr-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* Content-Window ueber der Drag-Flaeche (Panel selbst ist pointer-events:none,
   Buttons/Links bleiben klickbar — Drag startet auf der Canvas darunter). */
.ms-image-ring .msr-stage .hud { z-index: 3; }

@media (prefers-reduced-motion: reduce) {
  .ms-image-ring .msr-canvas-host { cursor: default; }
}