/* Practice web page - Modal Style (Musicca-inspired) */

/* 页面全局样式 */
body {
  background: #FFFFFF;
  overflow: hidden;
}

/* 弹窗遮罩层 */
.practice-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
}

/* 弹窗主容器 */
.practice-modal-container {
  width: 100%;
  max-width: 960px;
  max-height: 90vh;
  background: #FFFFFF;
  border-radius: 24px;
  border: 1px solid #E5E7EB;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.18);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

/* 头部：统计 + 按钮 */
.practice-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid #E5E7EB;
  background: #FFFFFF;
  flex-shrink: 0;
}

.practice-stats-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.practice-stat-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.practice-stat-main .stat-main-label {
  font-size: 12px;
  font-weight: 500;
  color: #6B7280;
}

.practice-stat-main .stat-main-value {
  font-size: 26px;
  font-weight: 700;
  color: #111827;
}

.practice-stat-main .stat-main-sub {
  font-size: 12px;
  color: #6B7280;
}

.practice-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.practice-btn-secondary {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  background: #FFFFFF;
  border: 1px solid #E5E7EB;
  color: #111827;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.practice-btn-secondary:hover {
  background: #F9FAFB;
  border-color: #D1D5DB;
}

.practice-btn-secondary svg {
  width: 16px;
  height: 16px;
  stroke: #6B7280;
}

.practice-btn-primary {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  background: #3B82F6;
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
  transition: all 0.15s ease;
}

.practice-btn-primary:hover {
  background: #2563EB;
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.45);
}

.practice-btn-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: #F9FAFB;
  border: 1px solid #E5E7EB;
  color: #6B7280;
  cursor: pointer;
  transition: all 0.15s ease;
}

.practice-btn-close:hover {
  background: #E5E7EB;
  border-color: #D1D5DB;
}

.practice-btn-close svg {
  width: 16px;
  height: 16px;
  stroke: #6B7280;
}

/* 主体区域 */
.practice-modal-main {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

/* 五线谱卡片 */
.practice-staff-card {
  border-radius: 20px;
  padding: 16px;
  background: #F9FAFB;
  border: 1px solid #E5E7EB;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

.staff-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.staff-title-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.staff-title {
  font-size: 16px;
  font-weight: 600;
  color: #111827;
}

.staff-subtitle {
  font-size: 12px;
  font-weight: 400;
  color: #6B7280;
}

/* 播放当前乐谱按钮（有 xmlRenderer 的工具才显示，由 BasePracticeController 控制） */
.practice-play-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  color: #2563EB;
  background: #EFF6FF;
  border: 1px solid #BFDBFE;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
}

.practice-play-btn:hover {
  background: #DBEAFE;
  color: #1D4ED8;
}

.practice-play-btn:active {
  background: #BFDBFE;
}

.practice-play-icon {
  flex-shrink: 0;
}

.mode-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #DCFCE7;
  color: #166534;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.mode-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #22C55E;
}

.notation-area {
  border-radius: 16px;
  height: 200px;
  background: #FFFFFF;
  border: 1px solid #E5E7EB;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9CA3AF;
  font-size: 13px;
}

/* 让 Verovio 渲染出的 SVG 在卡片中水平/垂直视觉居中 */
.notation-area > svg {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  max-height: 100%;
}

.feedback-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.feedback-text {
  font-size: 13px;
  color: #111827;
}

.feedback-text.is-correct {
  color: #166534;
}

.feedback-text.is-incorrect {
  color: #B91C1C;
}

.next-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  background: #3B82F6;
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.next-btn:hover {
  background: #2563EB;
}

.next-btn svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
}

/* 答案区域 */
.practice-answer-panel {
  border-radius: 20px;
  padding: 16px;
  background: #F9FAFB;
  border: 1px solid #E5E7EB;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.answer-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.answer-title {
  font-size: 14px;
  font-weight: 500;
  color: #111827;
}

.answer-hint {
  font-size: 11px;
  font-weight: 400;
  color: #9CA3AF;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .practice-modal-overlay {
    padding: 16px;
  }

  .practice-modal-container {
    max-height: 95vh;
    border-radius: 20px;
  }

  .practice-modal-header {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 16px;
  }

  .practice-stats-row {
    justify-content: center;
  }

  .practice-header-actions {
    justify-content: flex-end;
  }

  .practice-modal-main {
    padding: 16px;
  }

  .notation-area {
    height: 180px;
  }

  .practice-stat-pill {
    flex: 1;
    min-width: 0;
  }
}

/* -----------------------------
 * Settings drawer (web)
 * ----------------------------- */

.practice-settings-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
  z-index: 20;
}

.practice-settings-drawer {
  position: absolute;
  top: 0;
  right: 0;
  width: 380px;
  max-width: 100%;
  height: 100%;
  background: #FFFFFF;
  border-left: 1px solid #E5E7EB;
  box-shadow: -12px 0 30px rgba(0, 0, 0, 0.12);
  transform: translateX(100%);
  transition: transform 200ms ease;
  z-index: 30;
  display: flex;
  flex-direction: column;
}

body.practice-settings-open .practice-settings-overlay {
  opacity: 1;
  pointer-events: auto;
}

body.practice-settings-open .practice-settings-drawer {
  transform: translateX(0);
}

.settings-header {
  padding: 16px 16px 12px;
  border-bottom: 1px solid #E5E7EB;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: linear-gradient(180deg, #FFFFFF 0%, #FBFDFF 100%);
}

.settings-title {
  font-size: 16px;
  font-weight: 900;
  color: #0F172A;
}

.settings-close {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  border: 1px solid #E2E8F0;
  background: #F8FAFC;
  font-size: 18px;
  line-height: 1;
  color: #0F172A;
}
.settings-close:hover {
  background: #EEF2FF;
  border-color: #C7D2FE;
}

.settings-content {
  padding: 16px 18px 20px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.settings-content::-webkit-scrollbar {
  width: 10px;
}
.settings-content::-webkit-scrollbar-thumb {
  background: #E2E8F0;
  border-radius: 999px;
  border: 2px solid #FFFFFF;
}

.settings-segmented {
  display: inline-flex;
  padding: 4px;
  border-radius: 14px;
  background: #F1F5F9;
  border: 1px solid #E2E8F0;
  gap: 4px;
}

.settings-segmented .seg-btn {
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 900;
  color: #0F172A;
}

.settings-segmented .seg-btn.is-active {
  background: #2563EB;
  color: #FFFFFF;
  box-shadow: 0 8px 16px rgba(37, 99, 235, 0.25);
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.settings-pick {
  border: 1px solid #E2E8F0;
  background: #FFFFFF;
  border-radius: 16px;
  padding: 12px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
}

.settings-pick:hover {
  border-color: #CBD5E1;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.06);
}

.settings-pick.is-selected {
  border-color: #93C5FD;
  background: #EEF2FF;
}

.pick-icon {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 900;
  color: #1D4ED8;
  flex: 0 0 auto;
}

.settings-pick.is-selected .pick-icon {
  background: #DBEAFE;
  border-color: #BFDBFE;
}

.pick-text {
  font-size: 13px;
  font-weight: 900;
  color: #0F172A;
}

.settings-section {
  border: 1px solid #E2E8F0;
  background: #F8FAFC;
  border-radius: 16px;
  padding: 14px 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.settings-section .section-title {
  font-size: 13px;
  font-weight: 800;
  color: #0F172A;
  letter-spacing: 0.2px;
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.settings-row .label {
  font-size: 13px;
  color: #334155;
  font-weight: 700;
}

.settings-row .hint {
  font-size: 12px;
  color: #64748B;
  margin-top: 2px;
}

.settings-control {
  display: flex;
  align-items: center;
  gap: 8px;
}

.settings-range-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.settings-range-label {
  display: flex;
  flex-direction: column;
  font-size: 12px;
  color: #64748B;
}

.settings-range {
  margin-top: 4px;
}

.settings-select,
.settings-input {
  border: 1px solid #CBD5E1;
  background: #FFFFFF;
  border-radius: 12px;
  padding: 8px 10px;
  font-size: 13px;
  min-width: 160px;
  outline: none;
}
.settings-select:focus,
.settings-input:focus {
  border-color: #93C5FD;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.settings-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.settings-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid #CBD5E1;
  background: #FFFFFF;
  font-size: 13px;
  font-weight: 800;
  color: #0F172A;
  user-select: none;
}

.settings-chip input {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
}

.settings-chip.is-checked {
  background: #EEF2FF;
  border-color: #C7D2FE;
  color: #1D4ED8;
}

.settings-chip.is-radio {
  padding: 0;
  overflow: hidden;
  border-radius: 14px;
}

.settings-chip.is-radio button {
  padding: 9px 12px;
  font-size: 13px;
  font-weight: 900;
  color: #0F172A;
}

.settings-chip.is-radio button.is-active {
  background: #2563EB;
  color: #FFFFFF;
}

.settings-switch {
  width: 44px;
  height: 26px;
  border-radius: 999px;
  background: #CBD5E1;
  position: relative;
  display: inline-flex;
  align-items: center;
  transition: background 160ms ease;
}
.settings-switch::after {
  content: '';
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: #FFFFFF;
  position: absolute;
  left: 2px;
  top: 2px;
  box-shadow: 0 6px 12px rgba(0,0,0,0.12);
  transition: transform 160ms ease;
}
.settings-switch.is-on {
  background: #2563EB;
}
.settings-switch.is-on::after {
  transform: translateX(18px);
}

/* 统一提示框：与网站风格一致（Inter、主色、圆角、阴影） */
.practice-result-toast {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(0.96);
  max-width: 380px;
  min-width: 260px;
  padding: var(--spacing-md, 16px) var(--spacing-lg, 24px);
  border-radius: var(--radius-lg, 16px);
  font-family: var(--font-family);
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.14), 0 0 0 1px rgba(15, 23, 42, 0.04);
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms cubic-bezier(0.21, 0.47, 0.32, 1),
    transform 220ms cubic-bezier(0.21, 0.47, 0.32, 1);
  z-index: 80;
  border: 1px solid transparent;
}

.practice-result-toast.is-visible {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.practice-result-toast.is-correct {
  background: #FFFFFF;
  color: #0F766E;
  border-color: rgba(20, 184, 166, 0.25);
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.1), 0 0 0 1px rgba(20, 184, 166, 0.12);
}

.practice-result-toast.is-correct .toast-icon-wrap {
  background: linear-gradient(135deg, #14B8A6 0%, #0D9488 100%);
  color: #FFFFFF;
}

.practice-result-toast.is-incorrect {
  background: #FFFFFF;
  color: #B91C1C;
  border-color: rgba(239, 68, 68, 0.2);
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.1), 0 0 0 1px rgba(239, 68, 68, 0.12);
}

.practice-result-toast.is-incorrect .toast-icon-wrap {
  background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
  color: #FFFFFF;
}

.practice-result-toast.is-loading {
  background: #FFFFFF;
  color: #1E40AF;
  border-color: rgba(59, 130, 246, 0.2);
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.1), 0 0 0 1px rgba(59, 130, 246, 0.12);
}

.practice-result-toast.is-loading .toast-icon-wrap {
  background: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
  color: #FFFFFF;
}

.practice-result-toast.is-loading .toast-icon-wrap .toast-icon {
  animation: practice-toast-dots 1.2s ease-in-out infinite;
}

.practice-result-toast.is-error {
  background: #FFFFFF;
  color: #B45309;
  border-color: rgba(245, 158, 11, 0.25);
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.1), 0 0 0 1px rgba(245, 158, 11, 0.2);
}

.practice-result-toast.is-error .toast-icon-wrap {
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  color: #FFFFFF;
}

@keyframes practice-toast-dots {
  0%, 80%, 100% { opacity: 0.4; }
  40% { opacity: 1; }
}

.practice-result-toast .toast-icon-wrap {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

.practice-result-toast .toast-icon {
  display: block;
}

.practice-result-toast .toast-text {
  flex: 1;
  min-width: 0;
}

.practice-result-toast .toast-text-main {
  font-weight: 600;
  font-size: 15px;
  line-height: 1.35;
  color: inherit;
}

.practice-result-toast .toast-text-sub {
  font-size: 13px;
  font-weight: 500;
  opacity: 0.88;
  margin-top: 2px;
  line-height: 1.4;
  color: inherit;
}

.settings-footer {
  padding: 12px 16px;
  border-top: 1px solid #E5E7EB;
  background: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: sticky;
  bottom: 0;
  box-shadow: 0 -10px 22px rgba(15, 23, 42, 0.06);
}

.settings-footer-right {
  display: flex;
  gap: 8px;
}

.btn-chip.danger {
  border-color: #FCA5A5;
  color: #B91C1C;
  background: #FEF2F2;
}
.btn-chip.danger:hover {
  background: #FEE2E2;
}

/* -----------------------------
 * Statistics Modal (web)
 * ----------------------------- */

.practice-statistics-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease;
  z-index: 2000;
}

.practice-statistics-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  width: 90vw;
  max-width: 1000px;
  max-height: 90vh;
  background: #FFFFFF;
  border-radius: 24px;
  border: 1px solid #E5E7EB;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease, transform 200ms ease;
  z-index: 2001;
}

body.practice-statistics-open .practice-statistics-overlay {
  opacity: 1;
  pointer-events: auto;
}

body.practice-statistics-open .practice-statistics-modal {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.statistics-header {
  padding: 20px 24px;
  border-bottom: 1px solid #E5E7EB;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: linear-gradient(180deg, #FFFFFF 0%, #FBFDFF 100%);
  flex-shrink: 0;
}

.statistics-title {
  font-size: 18px;
  font-weight: 700;
  color: #0F172A;
}

.statistics-close {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  border: 1px solid #E2E8F0;
  background: #F8FAFC;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0F172A;
  cursor: pointer;
  transition: all 150ms ease;
}

.statistics-close:hover {
  background: #EEF2FF;
  border-color: #C7D2FE;
}

.statistics-close svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

.statistics-content {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
  background: #FFFFFF;
}

.statistics-content::-webkit-scrollbar {
  width: 10px;
}

.statistics-content::-webkit-scrollbar-thumb {
  background: #E2E8F0;
  border-radius: 999px;
  border: 2px solid #FFFFFF;
}

.statistics-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 60px 20px;
  color: #64748B;
  font-size: 14px;
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid #E2E8F0;
  border-top-color: #3B82F6;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* 统计内容样式（复用 tool-statistics.ejs 的样式） */
.statistics-content .metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.statistics-content .metric-card {
  padding: 18px 16px;
  border-radius: 16px;
  border: 1px solid #E5E7EB;
  background: #F9FAFB;
}

.statistics-content .metric-card h3 {
  font-size: 14px;
  color: #6B7280;
  margin-bottom: 6px;
  font-weight: 500;
}

.statistics-content .metric-value {
  font-size: 28px;
  font-weight: 700;
  color: #3B82F6;
}

.statistics-content .metric-sub {
  font-size: 12px;
  color: #9CA3AF;
  margin-top: 4px;
}

.statistics-content .section-title-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 12px;
  margin-top: 28px;
}

.statistics-content .section-title-row:first-child {
  margin-top: 0;
}

.statistics-content .section-title-row h2 {
  font-size: 18px;
  font-weight: 700;
  color: #111827;
}

.statistics-content .section-title-row p {
  font-size: 13px;
  color: #6B7280;
}

.statistics-content .trend-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
}

.statistics-content .trend-item {
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid #E5E7EB;
  background: #F9FAFB;
  font-size: 12px;
}

.statistics-content .trend-item strong {
  font-size: 13px;
  color: #111827;
  display: block;
  margin-bottom: 4px;
}

.statistics-content .trend-metric {
  margin-top: 4px;
  display: flex;
  justify-content: space-between;
  color: #6B7280;
}

.statistics-content .breakdown-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 6px;
}

.statistics-content .breakdown-card {
  padding: 14px 14px;
  border-radius: 16px;
  border: 1px solid #E5E7EB;
  background: #F9FAFB;
  font-size: 13px;
}

.statistics-content .breakdown-card h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #111827;
}

.statistics-content .breakdown-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.statistics-content .breakdown-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  border-top: 1px solid rgba(148, 163, 184, 0.22);
}

.statistics-content .breakdown-list li:first-child {
  border-top: none;
}

.statistics-content .breakdown-label {
  color: #6B7280;
}

.statistics-content .breakdown-value {
  color: #111827;
  font-weight: 600;
}

.statistics-content .empty-hint {
  padding: 16px 14px;
  border-radius: 14px;
  border: 1px dashed #E5E7EB;
  background: #F9FAFB;
  font-size: 13px;
  color: #6B7280;
}

.statistics-content .mistake-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.statistics-content .mistake-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 6px 0;
  border-top: 1px solid rgba(148, 163, 184, 0.22);
  font-size: 13px;
}

.statistics-content .mistake-item:first-child {
  border-top: none;
}

.statistics-content .mistake-main {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.statistics-content .mistake-meta {
  font-size: 12px;
  color: #9CA3AF;
}

.statistics-content .mistake-count {
  font-weight: 600;
  color: #111827;
}

/* 图表相关样式 */
.chart-type-selector {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  padding: 4px;
  background: #F1F5F9;
  border-radius: 12px;
  border: 1px solid #E2E8F0;
}

.chart-type-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 10px;
  border: none;
  background: transparent;
  color: #64748B;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 150ms ease;
}

.chart-type-btn:hover {
  background: rgba(255, 255, 255, 0.6);
}

.chart-type-btn.active {
  background: #3B82F6;
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.chart-type-btn svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}

.chart-container {
  position: relative;
  padding: 20px;
  background: #FFFFFF;
  border-radius: 16px;
  border: 1px solid #E5E7EB;
  margin-bottom: 24px;
  min-height: 280px;
  display: flex;
  flex-direction: column;
}

.chart-container canvas {
  max-height: 240px;
  width: 100% !important;
  height: auto !important;
}

.chart-info {
  margin-top: 12px;
  text-align: center;
  font-size: 12px;
  color: #64748B;
  padding-top: 12px;
  border-top: 1px solid #E5E7EB;
}

@media (max-width: 768px) {
  .practice-statistics-modal {
    width: 95vw;
    max-height: 95vh;
    border-radius: 20px;
  }

  .statistics-header {
    padding: 16px 20px;
  }

  .statistics-title {
    font-size: 16px;
  }

  .statistics-content {
    padding: 20px 16px;
  }

  .statistics-content .metrics-grid {
    grid-template-columns: 1fr;
  }

  .statistics-content .breakdown-grid {
    grid-template-columns: 1fr;
  }

  .chart-type-selector {
    flex-direction: column;
  }

  .chart-container {
    height: 240px;
    padding: 16px;
  }

  .chart-container canvas {
    max-height: 200px;
  }
}

@media (max-width: 520px) {
  .practice-settings-drawer {
    width: 100vw;
    max-width: 100vw;
    border-left: none;
  }
  .settings-select,
  .settings-input {
    min-width: 140px;
  }
  .settings-grid {
    grid-template-columns: 1fr;
  }

  .settings-footer {
    flex-direction: column;
    align-items: stretch;
  }
  .settings-footer-right {
    width: 100%;
  }
  .settings-footer-right .btn-chip {
    flex: 1;
  }
}