.loading-spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-primary);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  padding: 40px;
  color: var(--text-secondary);
}

.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

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

.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 10px;
  background: var(--bg-tooltip);
  color: var(--text-inverse);
  font-size: var(--font-size-xs);
  border-radius: var(--border-radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.tooltip:hover::after {
  opacity: 1;
}

.empty-state-large {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  color: var(--text-tertiary);
  text-align: center;
}

.empty-state-large svg {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  opacity: 0.3;
}

.empty-state-large h3 {
  font-size: var(--font-size-xl);
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.empty-state-large p {
  font-size: var(--font-size-md);
  max-width: 450px;
  margin-bottom: 24px;
}

/* Settings page */
.settings-page {
  padding: 32px;
  max-width: 800px;
}

.settings-page h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 24px;
}

.settings-section {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  padding: 24px;
  margin-bottom: 20px;
}

.settings-section h3 {
  font-size: var(--font-size-md);
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-primary);
}

.settings-row:last-child {
  border-bottom: none;
}

.settings-row .label {
  font-size: var(--font-size-base);
  color: var(--text-primary);
}

.settings-row .description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: 2px;
}

/* Toggle switch */
.toggle-switch {
  position: relative;
  width: 48px;
  height: 26px;
  cursor: pointer;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: 13px;
  transition: all var(--transition-fast);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  left: 2px;
  bottom: 2px;
  background: white;
  border-radius: 50%;
  transition: transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--primary);
  border-color: var(--primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(22px);
}

/* About page */
.about-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 32px;
  text-align: center;
}

.about-page .about-logo {
  width: 80px;
  height: 80px;
  color: var(--primary);
  margin-bottom: 24px;
}

.about-page h1 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: 8px;
}

.about-page .version {
  font-size: var(--font-size-md);
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.about-page .about-info {
  max-width: 500px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 32px;
}

.about-page .about-details {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  padding: 24px;
  width: 100%;
  max-width: 400px;
}

.about-page .about-details .detail-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: var(--font-size-sm);
}

.about-page .about-details .detail-row .detail-label {
  color: var(--text-secondary);
}

.about-page .about-details .detail-row .detail-value {
  font-weight: 600;
  color: var(--text-primary);
}

/* Backup page */
.backup-page {
  padding: 32px;
  max-width: 900px;
}

.backup-page h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 24px;
}

.backup-actions {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.backup-action-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.backup-action-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.backup-action-card .bac-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-bg);
  color: var(--primary);
}

.backup-action-card .bac-icon svg {
  width: 22px;
  height: 22px;
}

.backup-action-card h4 {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--text-primary);
}

.backup-action-card p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.backup-list h3 {
  font-size: var(--font-size-md);
  font-weight: 600;
  margin-bottom: 16px;
}

/* Reports page */
.reports-page {
  padding: 32px;
  max-width: 1200px;
}

.reports-page h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 24px;
}

.reports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.report-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.report-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.report-card .rc-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-bg);
  color: var(--primary);
}

.report-card .rc-icon svg {
  width: 22px;
  height: 22px;
}

.report-card h4 {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--text-primary);
}

.report-card p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}