/* ===== Preview Mode Layout ===== */
.preview-body {
  flex: 1;
  display: flex;
  min-height: 0;
}

.preview-sidebar {
  width: 280px;
  padding: 12px;
  border-right: 1px solid var(--border-color);
  background: var(--bg-panel);
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  flex-shrink: 0;
}

.preview-sidebar section h2 {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.preview-sidebar .info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 8px;
  font-size: 12px;
}

.preview-sidebar .info-grid > div {
  padding: 5px 8px;
  background: #2d2d30;
  border-radius: 4px;
}

.preview-sidebar .info-grid span {
  display: block;
  font-size: 10px;
  color: var(--text-secondary);
  margin-bottom: 1px;
}

.preview-sidebar select,
.preview-sidebar input[type="number"] {
  margin-top: 4px;
}

.preview-sidebar .range-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}

.preview-sidebar .range-wrap input[type="range"] {
  flex: 1;
}

.preview-sidebar .range-wrap input[type="number"] {
  width: 50px;
  margin-top: 0;
}

.preview-sidebar .control-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 6px;
}

.preview-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  background: var(--bg-primary);
}

.canvas-area {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.canvas-area canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.canvas-placeholder {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  border: 2px dashed #3c3c3c;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #555;
  font-size: 13px;
  gap: 8px;
  pointer-events: none;
}

.canvas-placeholder.hidden {
  display: none;
}

.drop-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px;
  background: rgba(0, 0, 0, 0.6);
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s;
}

.drop-overlay.visible { opacity: 1; }

.timeline {
  height: 72px;
  background: var(--bg-panel);
  border-top: 1px solid var(--border-color);
  padding: 10px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-shrink: 0;
}

.timeline-info {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-secondary);
  font-family: monospace;
}

.timeline-bar {
  height: 4px;
  background: var(--border-light);
  border-radius: 2px;
  position: relative;
  cursor: pointer;
}

.timeline-bar-fill {
  height: 100%;
  background: var(--accent-blue);
  border-radius: 2px;
  width: 0%;
}

.timeline-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.timeline-controls button {
  width: auto;
  padding: 5px 14px;
  font-size: 12px;
  background: var(--button-primary);
  border: none;
  color: #fff;
}

.timeline-controls button:hover {
  background: var(--button-primary-hover);
}

.timeline-controls input[type="range"] {
  flex: 1;
}

/* Source hint (shown when jumping from replace mode) */
.source-hint {
  padding: 8px 10px;
  background: var(--accent-blue-bg);
  border-radius: 4px;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.source-hint span:first-child {
  cursor: pointer;
  color: var(--accent-blue-light);
}

.source-hint span:first-child:hover {
  text-decoration: underline;
}

.animation-rename-modal {
  width: min(760px, calc(100vw - 48px));
}

.animation-rename-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.animation-rename-note,
.animation-rename-status {
  margin: 0;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.5;
}

.animation-rename-summary {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-secondary);
  font-size: 12px;
}

.animation-rename-list {
  display: grid;
  gap: 8px;
  max-height: min(48vh, 480px);
  overflow-y: auto;
  padding-right: 4px;
}

.animation-rename-row {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-secondary);
}

.animation-rename-row.is-changed {
  border-color: var(--accent-blue);
}

.animation-rename-index {
  color: var(--text-secondary);
  font-family: monospace;
  text-align: center;
}

.animation-rename-original {
  overflow: hidden;
  color: var(--text-secondary);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.animation-rename-row input {
  min-width: 0;
}

.animation-rename-row input.is-invalid {
  border-color: var(--accent-red);
}

.animation-rename-row button {
  width: auto;
  padding: 4px 8px;
}

.animation-rename-status.is-error {
  color: var(--accent-red);
}

.animation-rename-status.is-ok {
  color: var(--accent-green);
}

@media (max-width: 640px) {
  .animation-rename-row {
    grid-template-columns: 28px minmax(0, 1fr) auto;
  }

  .animation-rename-original {
    display: none;
  }
}