/* PDF to Image */
.loading-wrap {
  text-align: center;
  padding: 40px 20px;
}

.loading-spinner {
  display: inline-block;
  width: 36px;
  height: 36px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: pdf-to-image-spin 0.8s linear infinite;
}

@keyframes pdf-to-image-spin {
  to { transform: rotate(360deg); }
}

.loading-wrap p {
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.file-info-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.selection-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
  padding: 14px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
}

.selection-count {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

.selection-count span {
  color: var(--color-primary);
}

.quick-select-btns {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.quick-btn {
  padding: 6px 14px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.quick-btn:hover {
  border-color: var(--color-primary-subtle);
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.range-input-group {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.range-input-group input[type="text"] {
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-text);
  background: var(--color-bg);
  width: 240px;
  max-width: 100%;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.range-input-group input[type="text"]:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.range-input-group input[type="text"]::placeholder {
  color: var(--color-text-muted);
}

.apply-range-btn {
  padding: 8px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.apply-range-btn:hover {
  border-color: var(--color-primary-subtle);
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.range-help {
  margin: 8px 0 0;
  font-size: 0.76rem;
  color: var(--color-text-muted);
}

.page-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.page-thumb {
  position: relative;
  border: 3px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--color-surface);
  padding: 0;
}

.page-thumb:hover {
  border-color: var(--color-primary-subtle);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.page-thumb.selected {
  border-color: #2563eb;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.25), 0 2px 8px rgba(37, 99, 235, 0.15);
}

.page-thumb canvas {
  display: block;
  width: 100%;
  height: auto;
}

.page-number {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: center;
  padding: 4px 0;
  background: rgba(255, 255, 255, 0.92);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  border-top: 1px solid var(--color-border-light);
}

.page-thumb.selected .page-number {
  background: #2563eb;
  color: #fff;
  border-top-color: #2563eb;
}

.check-overlay {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #2563eb;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.page-thumb.selected .check-overlay {
  display: flex;
}

.check-overlay svg {
  width: 14px;
  height: 14px;
  stroke: #fff;
  stroke-width: 3;
  fill: none;
}

.setting-stack {
  flex: 1 1 260px;
  align-items: stretch;
}

.format-group,
.resolution-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.format-btn,
.resolution-btn {
  padding: 10px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.format-btn:hover,
.resolution-btn:hover {
  border-color: var(--color-primary-subtle);
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.format-btn.active,
.resolution-btn.active {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.quality-wrap {
  margin-top: 14px;
}

.quality-wrap.is-hidden {
  display: none;
}

.quality-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.quality-readout {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-mono);
}

.quality-wrap input[type="range"] {
  width: 100%;
  accent-color: var(--color-primary);
}

.setting-note {
  margin: 8px 0 0;
  font-size: 0.76rem;
  line-height: 1.45;
  color: var(--color-text-muted);
}

.action-stack {
  justify-content: flex-end;
  align-items: flex-end;
  gap: 12px;
}

.selection-note {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-light);
  background: var(--color-bg);
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.progress-bar-wrap {
  width: 100%;
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
  margin-top: 16px;
  overflow: hidden;
  display: none;
}

.progress-bar-wrap.visible {
  display: block;
}

.progress-bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 3px;
  transition: width 0.3s ease;
  width: 0%;
}

.progress-text {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 8px;
  display: none;
}

.progress-text.visible {
  display: block;
}

.results-section {
  display: none;
  margin-top: 24px;
}

.results-section.visible {
  display: block;
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.results-header h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--color-text);
}

.results-summary {
  margin: 4px 0 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.result-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  transition: all var(--transition-fast);
}

.result-item:hover {
  border-color: var(--color-primary-subtle);
  background: var(--color-primary-light);
}

.result-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 10px;
  flex-shrink: 0;
  font-size: 0.88rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.result-info {
  flex: 1;
  min-width: 0;
}

.result-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.result-meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 2px;
  font-family: var(--font-mono);
}

.result-download-btn {
  padding: 8px 16px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.result-download-btn:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

@media (max-width: 768px) {
  .page-grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 10px;
  }

  .selection-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .range-input-group {
    flex-direction: column;
    align-items: stretch;
  }

  .range-input-group input[type="text"] {
    width: 100%;
  }

  .result-item {
    flex-wrap: wrap;
  }
}