.chat-media-viewer {
  overflow: hidden;
  background: #000;
  backdrop-filter: none;
  user-select: none;
}

.chat-media-viewer img {
  max-height: calc(100dvh - 96px - var(--safe-top) - var(--safe-bottom));
  border-radius: 0;
  box-shadow: none;
  cursor: zoom-in;
  touch-action: none;
  transform-origin: center;
  will-change: transform;
}

.chat-media-viewer.zoomed img {
  cursor: grab;
}

.chat-media-viewer.dragging img {
  cursor: grabbing;
  transition: none !important;
}

.chat-media-viewer .chat-media-zoom-hint {
  position: absolute;
  z-index: 2;
  bottom: calc(18px + var(--safe-bottom));
  left: 50%;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(24, 24, 24, .72);
  color: rgba(255, 255, 255, .82);
  font: 700 11px/1.2 system-ui, sans-serif;
  pointer-events: none;
  opacity: 0;
  transform: translateX(-50%);
  transition: opacity .2s ease;
}

.chat-media-viewer.ready:not(.zoomed) .chat-media-zoom-hint {
  opacity: 1;
  animation: chatZoomHint 3s forwards;
}

@keyframes chatZoomHint {
  0%, 70% { opacity: 1; }
  100% { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .chat-media-viewer img,
  .chat-media-viewer .chat-media-zoom-hint { transition: none !important; }
  .chat-media-viewer.ready:not(.zoomed) .chat-media-zoom-hint { animation: none; }
}