/* 學習分析頁 */
.analytics-page {
  padding: 0.75rem 1rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.analytics-page__head {
  margin-bottom: 1rem;
}

.analytics-page__title {
  margin: 0.25rem 0;
  font-size: 1.35rem;
}

.analytics-page__lead {
  margin: 0;
  color: var(--sw-muted, #64748b);
  font-size: 0.92rem;
}

.analytics-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.75rem 0 1rem;
  align-items: center;
}

.analytics-kpis {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(7.5rem, 1fr));
  gap: 0.65rem;
  margin-bottom: 1.25rem;
}

.analytics-kpi {
  background: linear-gradient(160deg, #e0f2fe 0%, #f8fafc 70%);
  border: 1px solid #bae6fd;
  border-radius: 10px;
  padding: 0.75rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.analytics-kpi__n {
  font-size: 1.45rem;
  font-weight: 700;
  color: #0369a1;
}

.analytics-kpi__l {
  font-size: 0.78rem;
  color: #475569;
}

.analytics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

@media (max-width: 800px) {
  .analytics-grid {
    grid-template-columns: 1fr;
  }
}

.analytics-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 0.85rem 1rem 1rem;
  min-height: 8rem;
}

.analytics-card__title {
  margin: 0 0 0.65rem;
  font-size: 1rem;
}

.analytics-empty {
  margin: 0;
  color: #94a3b8;
  font-size: 0.9rem;
}

.analytics-attention-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
  width: 100%;
  text-align: left;
  border: 0;
  border-bottom: 1px solid #f1f5f9;
  background: transparent;
  padding: 0.55rem 0.2rem;
  cursor: pointer;
  font: inherit;
}

.analytics-attention-row:hover {
  background: #f0f9ff;
}

.analytics-attention-row span {
  font-size: 0.82rem;
  color: #64748b;
}

.analytics-tag {
  display: inline-block;
  font-size: 0.7rem;
  background: #fef3c7;
  color: #92400e;
  padding: 0.05rem 0.35rem;
  border-radius: 4px;
  font-weight: 600;
}

.analytics-heat-row {
  display: grid;
  grid-template-columns: 5.5rem 1fr 2rem;
  gap: 0.4rem;
  align-items: center;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
}

.analytics-heat-row__bar {
  height: 0.55rem;
  border-radius: 4px;
  background: #e2e8f0;
  position: relative;
  overflow: hidden;
}

.analytics-heat-row__bar::after {
  content: '';
  display: block;
  height: 100%;
  width: var(--w, 10%);
  background: linear-gradient(90deg, #38bdf8, #0284c7);
  border-radius: 4px;
}

.analytics-heat-row__n {
  text-align: right;
  color: #64748b;
}

.analytics-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.analytics-table th,
.analytics-table td {
  border-bottom: 1px solid #e2e8f0;
  padding: 0.4rem 0.35rem;
  text-align: left;
}

.analytics-tl-item {
  border-left: 3px solid #38bdf8;
  padding: 0.45rem 0 0.45rem 0.75rem;
  margin-bottom: 0.55rem;
}

.analytics-tl-item header {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.8rem;
  margin-bottom: 0.2rem;
}

.analytics-tl-type {
  font-weight: 600;
  color: #0369a1;
}

.analytics-tl-item p {
  margin: 0;
  font-size: 0.88rem;
  color: #334155;
}

.analytics-timeline-wrap {
  margin-top: 0.5rem;
}