/* The viewer is self-contained. Sent thumbnails and composer attachments keep their baseline styles. */
.aii-dialog {
  --aii-ink: #202020;
  --aii-surface: #fff;
  --aii-line: #d3d3d3;
  position: fixed;
  inset: 0;
  z-index: 1000;
  box-sizing: border-box;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  overflow: hidden;
  background: transparent;
  color: var(--aii-ink);
  font: inherit;
  isolation: isolate;
}
.aii-dialog::backdrop { background: transparent; }
.aii-scrim {
  position: absolute;
  inset: 0;
  background: rgba(240, 240, 238, .96);
  opacity: 0;
  transition: opacity 190ms ease;
}
.aii-visible .aii-scrim { opacity: 1; }
.aii-toolbar {
  position: absolute;
  z-index: 3;
  top: max(12px, env(safe-area-inset-top));
  left: max(16px, env(safe-area-inset-left));
  right: max(16px, env(safe-area-inset-right));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.aii-caption {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14px;
  font-weight: 500;
}
.aii-actions { display: flex; flex: 0 0 auto; gap: 8px; }
.aii-dialog .aii-button {
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  margin: 0;
  padding: 8px 12px;
  border: 1px solid var(--aii-line);
  border-radius: 999px;
  background: var(--aii-surface);
  color: var(--aii-ink);
  font: inherit;
  font-size: 14px;
  line-height: 1.3;
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
  transition: background-color 120ms ease;
}
.aii-dialog .aii-button:active { background: var(--aii-line); }
.aii-dialog .aii-button:focus-visible { outline: 2px solid var(--aii-ink); outline-offset: 3px; }
.aii-viewport {
  position: absolute;
  z-index: 1;
  inset: calc(76px + env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) calc(56px + env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-x pan-y pinch-zoom;
}
.aii-image-space {
  display: grid;
  place-items: center;
  width: max-content;
  height: max-content;
  min-width: 100%;
  min-height: 100%;
}
.aii-dialog .aii-image {
  display: block;
  max-width: none;
  max-height: none;
  margin: 0;
  border-radius: 12px;
  object-fit: contain;
  user-select: none;
  -webkit-user-select: none;
  touch-action: pan-x pan-y pinch-zoom;
}
.aii-frame {
  position: absolute;
  z-index: 2;
  overflow: hidden;
  border-radius: 12px;
  pointer-events: none;
}
.aii-frame[hidden] { display: none; }
.aii-frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: cover;
}
.aii-hint {
  position: absolute;
  z-index: 2;
  bottom: max(12px, env(safe-area-inset-bottom));
  left: 16px;
  right: 16px;
  margin: 0;
  color: var(--aii-ink);
  font-size: 12px;
  line-height: 1.5;
  text-align: center;
  pointer-events: none;
}
@media (max-width: 480px) {
  .aii-toolbar { gap: 8px; }
  .aii-caption { max-width: 28vw; }
  .aii-dialog .aii-button { padding-inline: 10px; }
}
@media (prefers-color-scheme: dark) {
  .aii-dialog { --aii-ink: #f0f0f0; --aii-surface: #252525; --aii-line: #616161; }
  .aii-scrim { background: rgba(14, 14, 14, .97); }
}
@media (prefers-reduced-motion: reduce) {
  .aii-scrim, .aii-dialog .aii-button { transition: none; }
}