:where(.zoom-box) { position: relative; }

.zoom-box {
  overflow: hidden;
  touch-action: pan-x pan-y;
  overscroll-behavior: contain;
}
.zoom-box.is-zoomed {
  cursor: var(--cursor-grab, grab);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.zoom-box.is-zoomed:active { cursor: var(--cursor-grabbing, grabbing); }
.zoom-box img { -webkit-user-drag: none; }
.zoom-box.is-moving > :not(.zoom-box-ui) { will-change: translate, scale; }
.zoom-box.is-easing > :not(.zoom-box-ui) { transition: translate 0.28s cubic-bezier(0.2, 0.8, 0.2, 1), scale 0.28s cubic-bezier(0.2, 0.8, 0.2, 1); }
.zoom-box:focus-visible { outline: 2px solid var(--accent, #0057ff); outline-offset: 2px; }

.zoom-box-bar {
  position: absolute;
  right: var(--zoom-ui-inset, 10px);
  bottom: var(--zoom-ui-inset, 10px);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  background: var(--zoom-ui-bg, rgba(0, 0, 0, 0.6));
  color: var(--zoom-ui-fg, #fff);
  border-radius: var(--zoom-ui-radius, 0px);
  font: 12px/1 system-ui, -apple-system, "Segoe UI", sans-serif;
  cursor: var(--cursor-default, default);
}
.zoom-box-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  background: none;
  border: 0;
  border-radius: 0;
  color: inherit;
  font: inherit;
  font-size: 17px;
  cursor: var(--cursor-pointer, pointer);
}
.zoom-box-btn:hover { background: rgba(255, 255, 255, 0.15); }
.zoom-box-btn:focus-visible { outline: 2px solid currentColor; outline-offset: -2px; }
.zoom-box-level { min-width: 42px; text-align: center; font-variant-numeric: tabular-nums; opacity: 0.85; }

.zoom-box-hint {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 3;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.72);
  color: #fff;
  border-radius: var(--zoom-ui-radius, 0px);
  font: 13px/1.3 system-ui, -apple-system, "Segoe UI", sans-serif;
  white-space: nowrap;
  pointer-events: none;
  transform: translate(-50%, -50%);
}

@media (prefers-reduced-motion: reduce) {
  .zoom-box.is-easing > :not(.zoom-box-ui) { transition: none; }
}