/* ============================================================
 * BioQuest — 学习分析页面样式
 * ============================================================ */

.analytics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
  min-width: 0;
}

.analytics-card {
  background: var(--surface-primary, #ffffff);
  border: 1px solid var(--border-light, #ece8e1);
  border-radius: var(--radius-lg, 20px);
  padding: 28px;
  box-shadow: var(--shadow-sm, 0 1px 3px rgba(26,58,42,0.06));
  min-width: 0;
  overflow: hidden;
}

.analytics-card--full {
  grid-column: 1 / -1;
}

.analytics-card-title {
  font-family: var(--font-serif, 'Noto Serif SC', serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-deep, #1a3a2a);
  margin-bottom: 4px;
}

.analytics-card-subtitle {
  font-size: 0.82rem;
  color: var(--text-muted, #8a8a8a);
  margin-bottom: 20px;
}

.radar-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 16px 0;
}

.radar-svg {
  max-width: 100%;
  height: auto;
}

.radar-axis-label {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  fill: var(--text-secondary, #4a4a4a);
  text-anchor: middle;
}

.radar-value-label {
  font-family: var(--font-mono, monospace);
  font-size: 0.7rem;
  font-weight: 600;
  fill: var(--color-amber, #c4956a);
  text-anchor: middle;
}

.radar-polygon-fill {
  fill: rgba(196, 149, 106, 0.25);
  stroke: var(--color-deep, #1a3a2a);
  stroke-width: 2;
  stroke-linejoin: round;
}

.radar-grid-polygon {
  fill: none;
  stroke: var(--border-light, #ece8e1);
  stroke-width: 1;
}

.radar-axis-line {
  stroke: var(--border-light, #ece8e1);
  stroke-width: 1;
}

.wrong-book-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.wrong-book-group {
  margin-bottom: 8px;
}

.wrong-book-group-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-sage, #5a7d5c);
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-light, #ece8e1);
}

.wrong-book-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--surface-secondary, #faf7f2);
  border: 1px solid var(--border-light, #ece8e1);
  border-radius: var(--radius-md, 12px);
  gap: 12px;
  flex-wrap: wrap;
}

.wrong-book-item-left {
  flex: 1;
  min-width: 0;
}

.wrong-book-stem {
  font-size: 0.88rem;
  color: var(--text-primary, #1a1a1a);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}

.wrong-book-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.wrong-book-module {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 2px 10px;
  border-radius: var(--radius-full, 9999px);
  background: rgba(90, 125, 92, 0.1);
  color: var(--color-sage, #5a7d5c);
}

.wrong-book-count {
  font-size: 0.72rem;
  color: var(--color-error, #c0553a);
  font-weight: 600;
}

.wrong-book-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.wrong-book-btn {
  font-size: 0.78rem;
  padding: 6px 14px;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--border-default, #e0dcd5);
  background: var(--surface-primary, #ffffff);
  color: var(--text-secondary, #4a4a4a);
  cursor: pointer;
  font-weight: 500;
  transition: all var(--transition-fast, 0.15s ease);
  white-space: nowrap;
}

.wrong-book-btn:hover {
  border-color: var(--color-amber, #c4956a);
  color: var(--color-amber, #c4956a);
}

.wrong-book-btn--danger:hover {
  border-color: var(--color-error, #c0553a);
  color: var(--color-error, #c0553a);
}

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted, #8a8a8a);
}

.empty-state-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.empty-state-text {
  font-size: 0.95rem;
}

.stats-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stats-summary-item {
  text-align: center;
  padding: 20px 16px;
  background: var(--surface-secondary, #faf7f2);
  border-radius: var(--radius-md, 12px);
  border: 1px solid var(--border-light, #ece8e1);
}

.stats-summary-num {
  font-family: var(--font-mono, monospace);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-deep, #1a3a2a);
  margin-bottom: 4px;
}

.stats-summary-label {
  font-size: 0.78rem;
  color: var(--text-muted, #8a8a8a);
}

.stats-accuracy-bar {
  margin-bottom: 24px;
}

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

.stats-accuracy-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary, #4a4a4a);
}

.stats-accuracy-value {
  font-family: var(--font-mono, monospace);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-sage, #5a7d5c);
}

.stats-accuracy-track {
  height: 10px;
  background: var(--surface-tertiary, #f0ebe0);
  border-radius: 5px;
  overflow: hidden;
}

.stats-accuracy-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-sage, #5a7d5c), var(--color-amber, #c4956a));
  border-radius: 5px;
  transition: width 0.6s ease;
}

.stats-bar-chart {
  margin-bottom: 24px;
}

.stats-bar-chart-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary, #4a4a4a);
  margin-bottom: 16px;
}

.stats-bar-row {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
  gap: 10px;
  min-width: 0;
}

.stats-bar-label {
  width: 120px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary, #4a4a4a);
  flex-shrink: 0;
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stats-bar-track {
  flex: 1;
  height: 24px;
  background: var(--surface-tertiary, #f0ebe0);
  border-radius: var(--radius-sm, 6px);
  overflow: hidden;
}

.stats-bar-fill {
  height: 100%;
  border-radius: var(--radius-sm, 6px);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 8px;
  font-size: 0.7rem;
  font-weight: 600;
  color: #fff;
  transition: width 0.6s ease;
  min-width: 0;
}

.stats-bar-fill--1 { background: var(--color-sage, #5a7d5c); }
.stats-bar-fill--2 { background: var(--color-olive, #8ba888); }
.stats-bar-fill--3 { background: var(--color-amber, #c4956a); }
.stats-bar-fill--4 { background: var(--color-amber-light, #d4a574); }

.stats-record-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stats-record-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--surface-secondary, #faf7f2);
  border: 1px solid var(--border-light, #ece8e1);
  border-radius: var(--radius-md, 12px);
  gap: 12px;
  flex-wrap: wrap;
  min-width: 0;
}

.stats-record-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  min-width: 0;
}

.stats-record-date {
  font-family: var(--font-mono, monospace);
  font-size: 0.78rem;
  color: var(--text-muted, #8a8a8a);
  min-width: 80px;
}

.stats-record-type {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-full, 9999px);
}

.stats-record-type--practice {
  background: rgba(90, 125, 92, 0.1);
  color: var(--color-sage, #5a7d5c);
}

.stats-record-type--exam {
  background: rgba(196, 149, 106, 0.1);
  color: var(--color-amber, #c4956a);
}

.stats-record-info {
  font-size: 0.8rem;
  color: var(--text-secondary, #4a4a4a);
}

.stats-record-accuracy {
  font-family: var(--font-mono, monospace);
  font-size: 0.85rem;
  font-weight: 700;
}

.stats-record-accuracy--good { color: var(--color-success, #3a8c5c); }
.stats-record-accuracy--mid { color: var(--color-amber, #c4956a); }
.stats-record-accuracy--low { color: var(--color-error, #c0553a); }

@media (max-width: 900px) {
  .analytics-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .analytics-grid {
    grid-template-columns: 1fr;
  }

  .stats-summary {
    grid-template-columns: repeat(3, 1fr);
  }

  .stats-bar-label {
    width: 80px;
    font-size: 0.7rem;
  }

  .wrong-book-item {
    flex-direction: column;
    align-items: stretch;
  }

  .wrong-book-actions {
    justify-content: flex-end;
  }
}

@media (max-width: 480px) {
  .stats-summary {
    grid-template-columns: 1fr 1fr;
  }

  .stats-summary-item:last-child {
    grid-column: 1 / -1;
  }
}

/* ============================================================
 * Bio Score — KDA式综合评分卡片
 * ============================================================ */
.bioscore-card {
  background: linear-gradient(135deg, rgba(26, 58, 42, 0.04), rgba(196, 149, 106, 0.06));
  border: 1px solid var(--border-light, #ece8e1);
  border-radius: var(--radius-lg, 20px);
  padding: 24px 28px;
  margin-bottom: 24px;
}

.bioscore-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.bioscore-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.bioscore-title {
  font-family: var(--font-serif, 'Noto Serif SC', serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-deep, #1a3a2a);
}

.bioscore-grade {
  font-family: var(--font-mono, monospace);
  font-size: 1.1rem;
  font-weight: 800;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.bioscore-grade--s {
  background: linear-gradient(135deg, #c4956a, #e8a830);
  color: #fff;
  box-shadow: 0 4px 16px rgba(196, 149, 106, 0.35);
}

.bioscore-grade--a {
  background: linear-gradient(135deg, #5a7d5c, #3a8c5c);
  color: #fff;
  box-shadow: 0 4px 16px rgba(90, 125, 92, 0.3);
}

.bioscore-grade--b {
  background: linear-gradient(135deg, #5a7d5c, #8ba888);
  color: #fff;
}

.bioscore-grade--c {
  background: var(--color-amber, #c4956a);
  color: #fff;
}

.bioscore-grade--d {
  background: var(--border-default, #e0dcd5);
  color: var(--text-muted, #8a8a8a);
}

.bioscore-letter {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted, #8a8a8a);
}

.bioscore-score-num {
  font-family: var(--font-mono, monospace);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-deep, #1a3a2a);
  line-height: 1;
}

.bioscore-score-max {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-muted, #8a8a8a);
}

.bioscore-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.bioscore-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--surface-secondary, #faf7f2);
  border: 1px solid var(--border-light, #ece8e1);
  transition: box-shadow 0.2s;
}
.bioscore-metric:hover {
  box-shadow: 0 2px 8px rgba(26,58,42,0.06);
}

.bioscore-metric-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.bioscore-metric-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-deep, #1a3a2a);
  white-space: nowrap;
}
.bioscore-metric-label strong {
  font-size: 0.95rem;
  margin-right: 4px;
  color: var(--color-sage, #5a7d5c);
}

.bioscore-metric-bar {
  height: 6px;
  background: var(--surface-tertiary, #f0ebe0);
  border-radius: 3px;
  overflow: hidden;
}

.bioscore-metric-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  background: linear-gradient(90deg, var(--color-sage, #5a7d5c), var(--color-amber, #c4956a));
}

.bioscore-metric-val {
  font-family: var(--font-mono, monospace);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-deep, #1a3a2a);
  text-align: right;
}

.bioscore-metric-detail {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 4px;
}
.bioscore-metric-full {
  font-size: 0.7rem;
  color: var(--text-muted, #8a8a8a);
  font-weight: 500;
}
.bioscore-metric-formula {
  font-size: 0.68rem;
  font-family: var(--font-mono, monospace);
  color: var(--color-sage, #5a7d5c);
  background: rgba(90,125,92,0.06);
  padding: 2px 6px;
  border-radius: 4px;
  display: inline-block;
  width: fit-content;
}
.bioscore-metric-desc {
  font-size: 0.68rem;
  color: var(--text-secondary, #4a4a4a);
  line-height: 1.45;
}

/* 评分标准面板 */
.bioscore-criteria {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--border-light, #ece8e1);
}
.bioscore-criteria-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted, #8a8a8a);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.bioscore-criteria-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0;
  font-size: 0.78rem;
  line-height: 1.5;
}
.bioscore-criteria-grade {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 20px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.72rem;
  color: #fff;
  flex-shrink: 0;
}
.bioscore-criteria-splus { background: linear-gradient(135deg, #c4956a, #d4a574); }
.bioscore-criteria-s { background: #c4956a; }
.bioscore-criteria-aplus { background: #3a8c5c; }
.bioscore-criteria-a { background: #4a9c6c; }
.bioscore-criteria-bplus { background: #5a7d5c; }
.bioscore-criteria-b { background: #6b9e6d; }
.bioscore-criteria-cplus { background: #8ba888; }
.bioscore-criteria-c { background: #9aba98; }
.bioscore-criteria-dplus { background: #b0aea8; }
.bioscore-criteria-d { background: #8a8a8a; }
.bioscore-criteria-range {
  font-family: var(--font-mono, monospace);
  color: var(--text-secondary, #4a4a4a);
  min-width: 48px;
  font-size: 0.74rem;
}
.bioscore-criteria-desc {
  color: var(--text-muted, #8a8a8a);
  font-size: 0.74rem;
}
.bioscore-criteria-weights {
  margin-top: 8px;
  font-size: 0.72rem;
  color: var(--text-muted, #8a8a8a);
  font-family: var(--font-mono, monospace);
  opacity: 0.8;
}

/* 新增等级样式 */
.bioscore-grade--splus {
  background: linear-gradient(135deg, #c4956a, #d4a574);
  color: #fff;
}
.bioscore-grade--aplus {
  background: #3a8c5c;
  color: #fff;
}
.bioscore-grade--bplus {
  background: #5a7d5c;
  color: #fff;
}
.bioscore-grade--cplus {
  background: #8ba888;
  color: #fff;
}
.bioscore-grade--dplus {
  background: #b0aea8;
  color: #fff;
}

@media (max-width: 768px) {
  .bioscore-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .bioscore-score-num {
    font-size: 1.8rem;
  }

  .bioscore-criteria-row {
    font-size: 0.72rem;
  }
}

@media (max-width: 480px) {
  .bioscore-card {
    padding: 18px 20px;
  }
}