.reading-debt-container { width: 100%; }
.chart-header {
  display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 0.5rem;
  .chart-title {
    flex: 1;
    h3 { color: var(--text-color, #ffffff); font-size: 1.25rem; font-weight: 500; margin: 0 0 0.5rem 0; display: flex; align-items: center; gap: 0.5rem; }
    .chart-description { color: var(--text-secondary-color); font-size: 0.9rem; margin: 0; line-height: 1.4; }
  }
}
.reading-debt-icon { font-size: 1.5rem; color: #ef5350; }
.stats-row {
  display: flex; gap: 0.75rem; margin-bottom: 1rem; flex-wrap: wrap;
  .stat-card {
    display: flex; flex-direction: column; align-items: center;
    background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px; padding: 0.5rem 1rem; flex: 1; min-width: 80px;
    .stat-value { font-size: 1.5rem; font-weight: 600; color: var(--text-color, #ffffff); }
    .stat-label { font-size: 0.75rem; color: var(--text-secondary-color); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 0.25rem; }
    &.backlog .stat-value { color: #ffc107; }
    &.trend .stat-value { color: #42a5f5; }
  }
}
.chart-wrapper { position: relative; height: 350px; width: 100%; }
.no-data-message {
  display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 3rem; text-align: center; color: var(--text-secondary-color);
  i { font-size: 2.5rem; margin-bottom: 1rem; opacity: 0.5; }
  p { font-size: 1rem; margin: 0 0 0.5rem 0; color: var(--text-color, #ffffff); }
  small { font-size: 0.85rem; opacity: 0.7; }
}
@media (max-width: 768px) { .chart-wrapper { height: 280px; } }
@media (max-width: 480px) { .chart-header .chart-title h3 { font-size: 1rem; } }
