.panel {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface-2);
  gap: 12px;
  flex-wrap: wrap;
}

.toolbarLeft {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toolBtn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  font-size: 12.5px;
  font-weight: 600;
  background: var(--bg-surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.toolBtn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.toolBtnActive {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  color: white !important;
}

.toolbarDivider {
  width: 1px;
  height: 20px;
  background: var(--border);
}

.iconBtn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.iconBtn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.iconBtn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.zoomLabel {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 36px;
  text-align: center;
}

.opacityControl {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.opacitySlider {
  width: 110px;
  -webkit-appearance: none;
  appearance: none;
  height: 5px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--authentic) 0%, var(--suspect) 50%, var(--ai-generated) 100%);
  cursor: pointer;
  outline: none;
}

.opacitySlider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 2px solid var(--accent);
  cursor: pointer;
  box-shadow: 0 0 0 4px var(--accent-light);
}

.mediaFrame {
  position: relative;
  background: #0e0e14;
  overflow: hidden;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.mediaContainer {
  position: relative;
  display: inline-block;
  transition: transform 0.25s ease, filter 0.2s ease;
  max-width: 100%;
}

.mediaContainerHeatmapOn .mediaEl {
  filter: saturate(calc(0.96 + var(--media-heatmap-strength) * 0.08)) contrast(calc(1 + var(--media-heatmap-strength) * 0.08));
}

.mediaEl {
  display: block;
  max-width: 100%;
  max-height: 420px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.heatmapWrap {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.heatmapOverlay {
  position: absolute;
  inset: 0;
  transition: opacity 0.2s ease;
  mix-blend-mode: screen;
}

.heatmapOverlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.04), transparent 60%);
  opacity: calc(var(--heatmap-strength) * 0.9);
}

.heatmapRegion {
  position: absolute;
  border-radius: 14px;
  transform: scale(var(--region-scale));
  background:
    radial-gradient(circle at center,
      color-mix(in srgb, var(--region-color) calc(var(--region-alpha) * 100%), transparent) 0%,
      color-mix(in srgb, var(--region-color) calc(var(--region-alpha) * 70%), transparent) 42%,
      color-mix(in srgb, var(--region-color) calc(var(--region-alpha) * 35%), transparent) 68%,
      transparent 100%);
  border: 1.5px solid color-mix(in srgb, var(--region-color) calc(var(--region-border-alpha) * 100%), transparent);
  box-shadow:
    0 0 var(--region-ring) color-mix(in srgb, var(--region-color) calc(var(--region-glow-alpha) * 100%), transparent),
    inset 0 0 22px color-mix(in srgb, var(--region-color) calc(var(--region-alpha) * 85%), transparent);
  filter: blur(var(--region-blur)) saturate(1.25);
}

.heatmapLegend {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(20, 24, 32, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 10px 13px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.legendTitle {
  font-size: 10px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.legendItems {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.legendItem {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

.legendDot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dotHigh { background: var(--ai-generated); }
.dotMed { background: var(--suspect); }
.dotLow { background: var(--authentic); }

.regionAnnotations {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.regionHeader {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.7px;
}

.regionGrid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.regionItem {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  padding: 6px 0;
  border-bottom: 1px solid var(--bg-surface-3);
}

.regionItem:last-child {
  border-bottom: none;
}

.regionDot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.regionLabel {
  flex: 1;
  color: var(--text-secondary);
  font-weight: 500;
}

.regionScore {
  color: var(--text-primary);
  font-weight: 700;
  font-size: 12px;
}

.fileInfo {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid var(--border);
}

.fileInfoItem {
  display: flex;
  flex-direction: column;
  padding: 12px 16px;
  flex: 1;
  min-width: 100px;
  border-right: 1px solid var(--border);
  gap: 3px;
}

.fileInfoItem:last-child {
  border-right: none;
}

.fileInfoItem span:first-child {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.fileInfoItem span:last-child {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-primary);
}