/* ========================================
   Favorites CSS - 收藏页（发现二级页）
   风格延续：纯白简约 · 系统感 · 高级留白
   ======================================== */

/* ---- 全屏容器 ---- */
.fav-screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #fff;
  z-index: var(--z-drawer);
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.fav-screen.is-active {
  display: flex;
}

/* ================================================
   1. 顶部导航栏
   ================================================ */
.fav-nav {
  height: var(--status-bar-height);
  margin-top: var(--safe-area-top);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  background-color: #fff;
  flex-shrink: 0;
  position: relative;
}

.fav-nav__back {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  transition: background-color var(--transition-fast);
}

.fav-nav__back:active {
  background-color: rgba(0, 0, 0, 0.04);
}

.fav-nav__back svg {
  width: 22px;
  height: 22px;
}

.fav-nav__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  letter-spacing: 0.3px;
}

.fav-nav__right {
  width: 36px;
  flex-shrink: 0;
}

/* ================================================
   2. 筛选区
   ================================================ */
.fav-filters {
  padding: 8px var(--spacing-lg) 4px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ---- CHAR 选择器按钮 ---- */
.fav-char-picker {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 7px 14px;
  background: #f5f5f5;
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 20px;
  cursor: pointer;
  align-self: flex-start;
  transition: background-color var(--transition-fast);
}

.fav-char-picker:active {
  background: #ebebeb;
}

.fav-char-picker__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  line-height: 1.3;
}

.fav-char-picker__arrow {
  width: 14px;
  height: 14px;
  color: var(--color-text-hint);
  transition: transform var(--transition-fast);
}

.fav-char-picker.is-open .fav-char-picker__arrow {
  transform: rotate(180deg);
}

/* ---- 消息类型切换（Segmented Control） ---- */
.fav-type-tabs {
  display: flex;
  background: #f5f5f5;
  border-radius: 10px;
  padding: 3px;
  gap: 0;
}

.fav-type-tab {
  flex: 1;
  padding: 6px 0;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  line-height: 1.3;
  font-family: var(--font-family);
}

.fav-type-tab.is-active {
  background: #fff;
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.fav-type-tab:active:not(.is-active) {
  background: rgba(0, 0, 0, 0.03);
}

/* ================================================
   3. 内容区
   ================================================ */
.fav-content {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0 var(--spacing-lg);
  padding-bottom: calc(var(--spacing-3xl) + var(--safe-area-bottom));
}

/* ================================================
   4. 空状态
   ================================================ */
.fav-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 28%;
}

.fav-empty__icon {
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
  color: var(--color-text-hint);
  opacity: 0.25;
}

.fav-empty__icon svg {
  width: 100%;
  height: 100%;
}

.fav-empty__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-hint);
  margin-bottom: 6px;
}

.fav-empty__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* ================================================
   5. 收藏列表
   ================================================ */
.fav-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-top: 8px;
}

/* ---- 单条收藏项 ---- */
.fav-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  user-select: none;
  -webkit-user-select: none;
}

.fav-item:last-child {
  border-bottom: none;
}

.fav-item:active {
  background-color: rgba(0, 0, 0, 0.02);
}

/* 长按高亮状态 */
.fav-item.is-longpress {
  background-color: rgba(0, 0, 0, 0.04);
  border-radius: 10px;
}

/* 头像 */
.fav-item__avatar {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #e8e8ee 0%, #d8d8e0 100%);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.fav-item__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-full);
}

.fav-item__avatar svg {
  width: 22px;
  height: 22px;
  color: rgba(255, 255, 255, 0.6);
}

/* 内容区 */
.fav-item__body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* 顶部行：名称 + 时间 */
.fav-item__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.fav-item__name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}

.fav-item__time {
  font-size: var(--font-size-xs);
  color: var(--color-text-hint);
  white-space: nowrap;
  flex-shrink: 0;
}

/* 消息内容摘要 */
.fav-item__text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 底部标签行 */
.fav-item__tags {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
}

/* 来源标签（线上/线下） */
.fav-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: var(--font-weight-regular);
  border-radius: 6px;
  line-height: 1.4;
}

.fav-tag--online {
  background: rgba(52, 199, 89, 0.10);
  color: #30b855;
}

.fav-tag--offline {
  background: rgba(255, 149, 0, 0.10);
  color: #e08600;
}

/* 聊天来源（预留） */
.fav-item__source {
  font-size: 11px;
  color: var(--color-text-light);
}

/* ================================================
   6. CHAR 选择器下拉面板
   ================================================ */
.fav-char-dropdown {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 5;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.fav-char-dropdown.is-open {
  pointer-events: auto;
  opacity: 1;
}

/* 遮罩 */
.fav-char-dropdown__mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.15);
}

/* 面板 */
.fav-char-dropdown__panel {
  position: absolute;
  top: calc(var(--status-bar-height) + var(--safe-area-top) + 52px);
  left: var(--spacing-lg);
  right: var(--spacing-lg);
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.10);
  max-height: 280px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateY(-8px);
  transition: transform var(--transition-fast);
}

.fav-char-dropdown.is-open .fav-char-dropdown__panel {
  transform: translateY(0);
}

/* 下拉列表 */
.fav-char-dropdown__list {
  padding: 6px 0;
}

/* 单项 */
.fav-char-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.fav-char-option:active {
  background-color: rgba(0, 0, 0, 0.03);
}

.fav-char-option.is-selected {
  background-color: rgba(0, 0, 0, 0.02);
}

.fav-char-option__avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #e8e8ee 0%, #d8d8e0 100%);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.fav-char-option__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-full);
}

.fav-char-option__avatar svg {
  width: 16px;
  height: 16px;
  color: rgba(255, 255, 255, 0.6);
}

.fav-char-option__name {
  flex: 1;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-primary);
}

.fav-char-option__check {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-accent);
  opacity: 0;
}

.fav-char-option.is-selected .fav-char-option__check {
  opacity: 1;
}

/* ---- 下拉列表空状态提示 ---- */
.fav-char-empty {
  padding: 20px 16px;
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-hint);
  line-height: 1.4;
}

/* ================================================
   7. 线下收藏按角色分组
   ================================================ */
.fav-group {
  margin-bottom: 8px;
}

.fav-group__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0 6px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  margin-bottom: 2px;
}

.fav-group__name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.fav-group__count {
  font-size: var(--font-size-xs);
  color: var(--color-text-hint);
}

/* ================================================
   8. 长按删除菜单
   ================================================ */

/* 遮罩 */
.fav-delete-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0);
  z-index: 10;
  transition: background 0.2s ease;
}

.fav-delete-overlay.is-visible {
  background: rgba(0, 0, 0, 0.25);
}

/* 菜单面板 */
.fav-delete-menu {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 11;
  padding: 8px 16px calc(16px + var(--safe-area-bottom));
  display: flex;
  flex-direction: column;
  gap: 8px;
  transform: translateY(100%);
  transition: transform 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fav-delete-menu.is-visible {
  transform: translateY(0);
}

/* 菜单按钮 */
.fav-delete-menu__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 0;
  border: none;
  border-radius: 12px;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: background-color 0.15s ease;
  font-family: var(--font-family);
}

.fav-delete-menu__btn svg {
  width: 18px;
  height: 18px;
}

/* 删除按钮（红色） */
.fav-delete-menu__btn--danger {
  background: #fff;
  color: #ff3b30;
}

.fav-delete-menu__btn--danger:active {
  background: #f5f5f5;
}

/* 取消按钮 */
.fav-delete-menu__btn--cancel {
  background: #fff;
  color: var(--color-text-primary);
}

.fav-delete-menu__btn--cancel:active {
  background: #f5f5f5;
}