.image-frame,
.video-frame {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

button.viewer-nav-button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

/* buttons.css resets `transform: none` on hover; keep these vertically centered. */
button.viewer-nav-button:not(:disabled):hover {
  transform: translateY(-50%);
}

.viewer-nav-prev {
  left: 16px;
}

.viewer-nav-next {
  right: 16px;
}

.viewer-panel.controls-visible button.viewer-nav-button:not(:disabled) {
  opacity: 1;
  pointer-events: auto;
}

.video-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: none;
  z-index: 1;
}

.video-placeholder {
  color: var(--muted);
  text-align: center;
  padding: 24px;
  z-index: 1;
}

.image-frame[hidden],
.video-frame[hidden] {
  display: none !important;
}

.image-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(255,255,255,0.02), transparent 45%);
  pointer-events: none;
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: none;
  z-index: 1;
}

.image-placeholder {
  color: var(--muted);
  text-align: center;
  padding: 24px;
  z-index: 1;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.meta-row span {
  background: rgba(255,255,255,0.04);
  padding: 10px 14px;
}