/* ============================================================
 * BioQuest — 用户中心页面样式
 * ============================================================ */

.user-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  min-width: 0;
  overflow: visible; /* 让内部 card 自己处理 */
}

/* 强制所有用户中心内容不溢出 */
.user-grid > * {
  min-width: 0;
  max-width: 100%;
}

.user-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;
  box-sizing: border-box; /* 确保padding不会撑破 */
}

/* 用户中心的行级元素全部防溢出 */
.user-setting-row,
.user-data-action,
.user-record-item,
.user-fav-item {
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

/* 文字截断 */
.user-setting-label,
.user-data-action-label,
.user-record-info,
.user-fav-id {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
  max-width: 100%;
}

.user-record-left,
.wrong-book-item-left {
  min-width: 0;
  overflow: hidden;
}

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

.user-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;
}

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

.user-setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light, #ece8e1);
  min-width: 0;
}

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

.user-setting-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary, #1a1a1a);
}

.user-setting-desc {
  font-size: 0.75rem;
  color: var(--text-muted, #8a8a8a);
  margin-top: 2px;
}

.user-theme-select {
  padding: 8px 14px;
  border: 1px solid var(--border-default, #e0dcd5);
  border-radius: var(--radius-sm, 6px);
  background: var(--surface-secondary, #faf7f2);
  font-size: 0.85rem;
  color: var(--text-primary, #1a1a1a);
  cursor: pointer;
  transition: border-color var(--transition-fast, 0.15s ease);
}

.user-theme-select:focus {
  border-color: var(--color-amber, #c4956a);
  outline: none;
}

.user-data-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.user-data-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light, #ece8e1);
  min-width: 0;
}

.user-data-action:last-child {
  border-bottom: none;
}

.user-data-action-info {
  flex: 1;
}

.user-data-action-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary, #1a1a1a);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-data-action-desc {
  font-size: 0.75rem;
  color: var(--text-muted, #8a8a8a);
  margin-top: 2px;
}

.user-import-input {
  display: none;
}

.user-confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.2s ease;
}

.user-confirm-dialog {
  background: var(--surface-primary, #ffffff);
  border-radius: var(--radius-lg, 20px);
  padding: 32px;
  max-width: 420px;
  width: 90%;
  box-shadow: var(--shadow-lg, 0 8px 32px rgba(26,58,42,0.12));
  text-align: center;
}

.user-confirm-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.user-confirm-title {
  font-family: var(--font-serif, 'Noto Serif SC', serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-deep, #1a3a2a);
  margin-bottom: 8px;
}

.user-confirm-text {
  font-size: 0.9rem;
  color: var(--text-secondary, #4a4a4a);
  margin-bottom: 24px;
  line-height: 1.6;
}

.user-confirm-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}

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

.user-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;
}

.user-record-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  min-width: 0;
}

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

.user-record-type {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-full, 9999px);
}

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

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

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

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

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

.user-fav-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.user-fav-group {
  margin-bottom: 4px;
}

.user-fav-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);
}

.user-fav-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;
  min-width: 0;
}

.user-fav-id {
  font-size: 0.85rem;
  color: var(--text-primary, #1a1a1a);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-fav-go-btn {
  font-size: 0.78rem;
  padding: 6px 14px;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--color-amber, #c4956a);
  background: transparent;
  color: var(--color-amber, #c4956a);
  cursor: pointer;
  font-weight: 500;
  white-space: nowrap;
  transition: all var(--transition-fast, 0.15s ease);
}

.user-fav-go-btn:hover {
  background: rgba(196, 149, 106, 0.1);
}

.user-storage-info {
  padding: 16px;
  background: var(--surface-secondary, #faf7f2);
  border-radius: var(--radius-md, 12px);
  border: 1px solid var(--border-light, #ece8e1);
}

.user-storage-bar {
  height: 8px;
  background: var(--surface-tertiary, #f0ebe0);
  border-radius: 4px;
  overflow: hidden;
  margin: 10px 0;
}

.user-storage-fill {
  height: 100%;
  background: var(--color-sage, #5a7d5c);
  border-radius: 4px;
  transition: width 0.4s ease;
}

.user-storage-text {
  font-size: 0.78rem;
  color: var(--text-muted, #8a8a8a);
  font-family: var(--font-mono, monospace);
}

.user-empty-state {
  text-align: center;
  padding: 32px 16px;
  color: var(--text-muted, #8a8a8a);
}

.user-empty-state-icon {
  font-size: 2rem;
  margin-bottom: 8px;
}

.user-empty-state-text {
  font-size: 0.9rem;
}

.user-toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-deep, #1a3a2a);
  color: var(--text-inverse, #ffffff);
  padding: 12px 24px;
  border-radius: var(--radius-md, 12px);
  font-size: 0.88rem;
  font-weight: 500;
  z-index: 2000;
  animation: userToastIn 0.3s ease, userToastOut 0.3s ease 1.7s forwards;
  box-shadow: var(--shadow-lg, 0 8px 32px rgba(26,58,42,0.12));
}

@keyframes userToastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes userToastOut {
  to { opacity: 0; transform: translateX(-50%) translateY(10px); }
}

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

  .user-grid > * {
    max-width: none; /* 单列时不限制宽度 */
  }
}

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