/* ── Image Viewer Overlay ───────────────────────────── */
.image-viewer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 8000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: audioPlayerFadeIn 0.2s ease-out;
}

.image-viewer-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.92);
  cursor: pointer;
}

.image-viewer-close {
  position: absolute;
  top: 16px;
  right: 20px;
  z-index: 10;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.2s;
  line-height: 1;
}
.image-viewer-close:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.1);
}

.image-viewer-spinner {
  position: absolute;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.image-viewer-spinner.hidden { display: none; }
.image-viewer-spinner .spinner-ring {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 255, 255, 0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: audioPlayerSpin 0.8s linear infinite;
}

.image-viewer-container {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: 100%;
  height: 100%;
  padding: 48px 32px 32px;
  user-select: none;
}

.image-viewer-display {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 0;
  position: relative;
  overflow: hidden;
}

.image-viewer-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.2s ease, opacity 0.3s ease;
  cursor: grab;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.4);
  border-radius: 4px;
}
.image-viewer-image:active { cursor: grabbing; }
.image-viewer-image.loading { opacity: 0.3; }

.image-viewer-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: #fff;
  padding: 8px 0;
}
.image-viewer-filename {
  font-size: 15px;
  font-weight: 500;
  color: #fff;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 40%;
}
.image-viewer-dimensions {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.image-viewer-counter {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
  white-space: nowrap;
}

.image-viewer-controls {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 12px;
}

.image-viewer-btn {
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s, transform 0.2s;
  opacity: 0.8;
  padding: 6px;
  border-radius: 6px;
}
.image-viewer-btn:hover { opacity: 1; transform: scale(1.12); background: rgba(255,255,255,0.1); }
.image-viewer-btn:disabled { opacity: 0.3; cursor: default; transform: none; background: none; }
.image-viewer-btn.active { opacity: 1; color: #34d399; }

.image-viewer-btn-zoom { opacity: 0.7; }
.image-viewer-btn-zoom:hover { opacity: 1; }
.image-viewer-zoom-level {
  min-width: 44px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  font-variant-numeric: tabular-nums;
}

.image-viewer-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 48px;
  height: 80px;
  border: none;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  border-radius: 8px;
  opacity: 0.6;
}
.image-viewer-nav:hover { background: rgba(255, 255, 255, 0.15); opacity: 1; }
.image-viewer-nav:disabled { opacity: 0.15; cursor: default; background: transparent; }
.image-viewer-nav-prev { left: 16px; }
.image-viewer-nav-next { right: 16px; }