/**
 * 个人中心专用样式
 *
 * 定位：只补充个人中心特有的结构（分区导航、资料卡、设备行、足迹时间线、
 * 内容标签页、头像选择器），配色与圆角统一复用 listenwrite-common.css 的设计令牌，
 * 避免与全站视觉割裂。
 */

/* ===== 布局骨架：桌面端左侧分区导航 + 右侧内容 ===== */
.pf-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: start;
}

@media (min-width: 1024px) {
  .pf-shell {
    grid-template-columns: 13.5rem minmax(0, 1fr);
  }
}

/* ===== 分区导航 ===== */
.pf-nav {
  background: #fff;
  border: 1px solid var(--lw-border, #e5e6eb);
  border-radius: 0.75rem;
  padding: 0.5rem;
  /* 移动端：横向滚动标签条，粘在页头下方 */
  position: sticky;
  top: 5.5rem;
  z-index: 10;
}

@media (max-width: 1023px) {
  .pf-nav {
    display: flex;
    gap: 0.375rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .pf-nav::-webkit-scrollbar {
    display: none;
  }
}

@media (min-width: 1024px) {
  .pf-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }
}

.pf-nav-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: none;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  color: #4b5563;
  white-space: nowrap;
  transition: background-color 200ms ease, color 200ms ease;
}

.pf-nav-item:hover {
  background: #f3f4f6;
}

.pf-nav-item.is-active {
  background: rgba(59, 130, 246, 0.1);
  color: #2563eb;
  font-weight: 600;
}

.pf-nav-item i {
  width: 1rem;
  text-align: center;
}

.pf-nav-badge {
  margin-left: auto;
  min-width: 1.25rem;
  padding: 0 0.375rem;
  border-radius: 999px;
  background: #ef4444;
  color: #fff;
  font-size: 0.6875rem;
  line-height: 1.25rem;
  text-align: center;
}

.pf-nav-badge[hidden] {
  display: none;
}

/* 锚点跳转时给粘性页头留出空间，避免标题被盖住 */
.pf-section {
  scroll-margin-top: 8.5rem;
}

@media (min-width: 1024px) {
  .pf-section {
    scroll-margin-top: 5rem;
  }
}

/* ===== 卡片与面板 ===== */
.pf-panel {
  background: #fff;
  border: 1px solid var(--lw-border, #e5e6eb);
  border-radius: 0.75rem;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  padding: 1.25rem;
}

@media (min-width: 768px) {
  .pf-panel {
    padding: 1.5rem;
  }
}

.pf-panel + .pf-panel {
  margin-top: 1.25rem;
}

.pf-panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.pf-panel-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: #1f2937;
}

.pf-panel-sub {
  font-size: 0.8125rem;
  color: #6b7280;
}

/* ===== 资料卡 ===== */
.pf-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

@media (min-width: 640px) {
  .pf-hero {
    flex-direction: row;
    text-align: left;
    align-items: flex-start;
  }
}

.pf-avatar {
  width: 5.5rem;
  height: 5.5rem;
  flex: none;
  border-radius: 999px;
  object-fit: cover;
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
  background: #f3f4f6;
}

.pf-hero-name {
  font-size: 1.375rem;
  font-weight: 700;
  color: #111827;
  line-height: 1.75rem;
}

.pf-hero-meta {
  font-size: 0.8125rem;
  color: #6b7280;
  margin-top: 0.25rem;
}

/* ===== 徽章 ===== */
.pf-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 600;
  line-height: 1.25rem;
  white-space: nowrap;
}

.pf-badge.is-admin {
  background: rgba(139, 92, 246, 0.15);
  color: #6d28d9;
}

.pf-badge.is-user {
  background: rgba(59, 130, 246, 0.12);
  color: #2563eb;
}

.pf-badge.is-ok {
  background: rgba(16, 185, 129, 0.14);
  color: #047857;
}

.pf-badge.is-warn {
  background: rgba(245, 158, 11, 0.16);
  color: #b45309;
}

.pf-badge.is-danger {
  background: rgba(239, 68, 68, 0.14);
  color: #b91c1c;
}

.pf-badge.is-muted {
  background: #f3f4f6;
  color: #6b7280;
}

/* ===== 统计卡 ===== */
.pf-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

@media (min-width: 1024px) {
  .pf-stat-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.pf-stat {
  background: #fff;
  border: 1px solid var(--lw-border, #e5e6eb);
  border-radius: 0.75rem;
  padding: 0.875rem 1rem;
}

.pf-stat-label {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  color: #6b7280;
}

.pf-stat-value {
  margin-top: 0.375rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: #111827;
  line-height: 1.875rem;
}

.pf-stat-hint {
  margin-top: 0.125rem;
  font-size: 0.75rem;
  color: #9ca3af;
}

.pf-stat.is-loading .pf-stat-value {
  color: transparent;
  background: linear-gradient(90deg, #eef1f5 25%, #e2e8f0 37%, #eef1f5 63%);
  background-size: 400% 100%;
  border-radius: 0.375rem;
  animation: pf-shimmer 1.4s ease infinite;
}

@keyframes pf-shimmer {
  0% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0 50%;
  }
}

/* ===== 标签页（我的内容 / 消息筛选） ===== */
.pf-tabs {
  display: flex;
  gap: 0.375rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
  scrollbar-width: none;
}

.pf-tabs::-webkit-scrollbar {
  display: none;
}

.pf-tab {
  flex: none;
  padding: 0.375rem 0.875rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  color: #4b5563;
  background: #f3f4f6;
  transition: background-color 200ms ease, color 200ms ease;
}

.pf-tab:hover {
  background: #e5e7eb;
}

.pf-tab.is-active {
  background: #3b82f6;
  color: #fff;
}

/* ===== 列表行 ===== */
.pf-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.875rem 0;
  border-bottom: 1px solid #f3f4f6;
}

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

.pf-row-title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: #1f2937;
  word-break: break-word;
}

.pf-row-meta {
  margin-top: 0.25rem;
  font-size: 0.8125rem;
  color: #6b7280;
}

.pf-row-actions {
  display: flex;
  flex: none;
  align-items: center;
  gap: 0.5rem;
}

/* ===== 表单 ===== */
.pf-field + .pf-field {
  margin-top: 1rem;
}

.pf-field-label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #374151;
}

.pf-input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  font-size: 0.9375rem;
  color: #111827;
  background: #fff;
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

.pf-input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.18);
}

.pf-input:disabled {
  background: #f9fafb;
  color: #6b7280;
  cursor: not-allowed;
}

.pf-field-error {
  display: none;
  margin-top: 0.375rem;
  font-size: 0.75rem;
  color: #dc2626;
}

.pf-field.has-error .pf-input {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12);
}

.pf-field.has-error .pf-field-error {
  display: block;
}

.pf-field-hint {
  margin-top: 0.375rem;
  font-size: 0.75rem;
  color: #9ca3af;
}

.pf-field-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 768px) {
  .pf-field-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.pf-field-grid .pf-field + .pf-field {
  margin-top: 0;
}

/* 联系方式的展示 + 编辑两态 */
.pf-contact-value {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: #1f2937;
}

/* ===== 头像选择器 ===== */
.pf-avatar-picker {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.625rem;
}

@media (min-width: 640px) {
  .pf-avatar-picker {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

.pf-avatar-option {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 999px;
  overflow: hidden;
  border: 2px solid transparent;
  transition: border-color 200ms ease, transform 200ms ease;
}

.pf-avatar-option img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.pf-avatar-option:hover {
  transform: translateY(-2px);
}

.pf-avatar-option.is-active {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* ===== 成就 ===== */
.pf-achievement-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .pf-achievement-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.pf-achievement {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 0.5rem;
  border-radius: 0.75rem;
  background: #f9fafb;
  text-align: center;
}

.pf-achievement-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 999px;
  background: #e5e7eb;
  color: #9ca3af;
  font-size: 1.25rem;
}

.pf-achievement.is-unlocked {
  background: rgba(59, 130, 246, 0.06);
}

.pf-achievement.is-unlocked .pf-achievement-icon {
  background: rgba(59, 130, 246, 0.16);
  color: #2563eb;
}

.pf-achievement-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: #374151;
}

.pf-achievement-desc {
  font-size: 0.6875rem;
  color: #9ca3af;
}

/* ===== 时间线（学习足迹） ===== */
.pf-timeline-day {
  padding-left: 1.25rem;
  border-left: 2px solid #e5e7eb;
  position: relative;
}

.pf-timeline-day + .pf-timeline-day {
  margin-top: 1.25rem;
}

.pf-timeline-day::before {
  content: '';
  position: absolute;
  left: -0.4375rem;
  top: 0.375rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 999px;
  background: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.16);
}

.pf-timeline-date {
  font-size: 0.875rem;
  font-weight: 600;
  color: #374151;
  margin-bottom: 0.5rem;
}

.pf-timeline-item {
  display: flex;
  gap: 0.5rem;
  padding: 0.375rem 0;
  font-size: 0.8125rem;
  color: #4b5563;
}

.pf-timeline-item i {
  width: 1rem;
  text-align: center;
  color: #9ca3af;
  margin-top: 0.125rem;
}

.pf-timeline-time {
  flex: none;
  min-width: 3rem;
  color: #9ca3af;
  font-variant-numeric: tabular-nums;
}

/* ===== 分页器 ===== */
.pf-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.875rem;
  padding-top: 0.875rem;
  border-top: 1px solid #f3f4f6;
  font-size: 0.8125rem;
  color: #6b7280;
}

/* ===== 按钮 ===== */
.pf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.4375rem 0.875rem;
  border-radius: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  transition: background-color 200ms ease, color 200ms ease, opacity 200ms ease;
}

.pf-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.pf-btn-primary {
  background: #3b82f6;
  color: #fff;
}

.pf-btn-primary:hover:not(:disabled) {
  background: #2563eb;
}

.pf-btn-ghost {
  background: #f3f4f6;
  color: #374151;
}

.pf-btn-ghost:hover:not(:disabled) {
  background: #e5e7eb;
}

.pf-btn-danger {
  background: rgba(239, 68, 68, 0.1);
  color: #b91c1c;
}

.pf-btn-danger:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.18);
}

.pf-btn-link {
  color: #2563eb;
  padding: 0;
}

.pf-btn-link:hover:not(:disabled) {
  text-decoration: underline;
}

/* ===== 空态 ===== */
.pf-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 2rem 1rem;
  color: #9ca3af;
  font-size: 0.875rem;
  text-align: center;
}

.pf-empty i {
  font-size: 1.75rem;
  color: #d1d5db;
}

/* ===== 弹窗 ===== */
.pf-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(17, 24, 39, 0.45);
}

.pf-modal-backdrop[hidden] {
  display: none;
}

.pf-modal-panel {
  width: 100%;
  max-width: 26rem;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  background: #fff;
  border-radius: 0.875rem;
  box-shadow: 0 20px 40px -12px rgba(15, 23, 42, 0.35);
}

.pf-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid #f3f4f6;
  font-weight: 600;
  color: #1f2937;
}

.pf-modal-body {
  padding: 1.25rem;
}

.pf-modal-foot {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  padding: 0.875rem 1.25rem;
  border-top: 1px solid #f3f4f6;
}

/* ===== 深色模式 ===== */
.dark .pf-nav,
.dark .pf-panel,
.dark .pf-stat,
.dark .pf-modal-panel,
.dark .pf-input {
  background: #1f2937;
  border-color: #374151;
  color: #e5e7eb;
}

.dark .pf-nav-item,
.dark .pf-row-title,
.dark .pf-panel-title,
.dark .pf-hero-name,
.dark .pf-stat-value,
.dark .pf-contact-value,
.dark .pf-timeline-date {
  color: #e5e7eb;
}

.dark .pf-nav-item:hover,
.dark .pf-tab,
.dark .pf-btn-ghost,
.dark .pf-achievement {
  background: #374151;
}

.dark .pf-tab {
  color: #d1d5db;
}

.dark .pf-stat-hint,
.dark .pf-row-meta,
.dark .pf-panel-sub,
.dark .pf-hero-meta,
.dark .pf-timeline-item {
  color: #9ca3af;
}

.dark .pf-row,
.dark .pf-pager,
.dark .pf-modal-head,
.dark .pf-modal-foot {
  border-color: #374151;
}

/* ===== 无障碍：尊重系统的「减少动效」设置 ===== */
@media (prefers-reduced-motion: reduce) {
  .pf-nav-item,
  .pf-tab,
  .pf-btn,
  .pf-avatar-option,
  .pf-input {
    transition: none;
  }

  .pf-stat.is-loading .pf-stat-value {
    animation: none;
  }

  .pf-avatar-option:hover {
    transform: none;
  }
}