/* ============================================================
   Textmolt Panel Layer — s03 旅程与信息架构（E 路 2026-07-02）
   区块: 1.左面板文档分组   2.会话行升级    3.行内 ⋯ 菜单
         4.归档区           5.记忆入口      6.Temp Chat 可视化
   规范: T5 —— 本文件不定义 --tm-；全部引用 tokens.css v2；
         styles.css 冻结令——左面板/入口新样式全部落本文件。
   Spec: docs/plans/FRONTEND_UIUX_OVERHAUL_2026-07-02/05_PLAN_JOURNEY_PMUX.md
   ============================================================ */

/* ────────────────────────────────────────────────────────────
   1) E-1 文档分组：当前文档组（badge「正在写」）+ 其他文档折叠组
   ──────────────────────────────────────────────────────────── */
.lp-doc-groups {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.lp-doc-group-header {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  padding: 6px 8px;
  border-radius: var(--tm-radius-sm);
  color: var(--text-secondary);
  font-size: var(--tm-text-sm);
}
.lp-doc-group.current > .lp-doc-group-header {
  color: var(--text-primary);
  font-weight: var(--tm-weight-medium);
}
.lp-doc-group-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lp-doc-badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 8px;
  border-radius: var(--tm-radius-full);
  font-size: var(--tm-text-2xs);
  font-weight: var(--tm-weight-semibold);
  color: var(--tm-brand-purple);
  background: var(--tm-brand-purple-alpha-10);
}
.lp-doc-badge::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: var(--tm-radius-full);
  background: currentColor;
}
.lp-doc-count {
  flex-shrink: 0;
  font-size: var(--tm-text-2xs);
  color: var(--text-muted);
}
.lp-doc-group .lp-collapse-header {
  cursor: pointer;
}
.lp-unbound-label {
  margin-top: var(--tm-space-2);
}

/* ────────────────────────────────────────────────────────────
   2) E§3.4 会话行升级：pin 标 + 模型徽点 + 双行（标题/预览）+
      相对时间 + hover 显现的 ⋯ 菜单按钮 + 行内重命名
   ──────────────────────────────────────────────────────────── */
.lp-history-row {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 6px;
}
.lp-row-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.lp-history-row-title {
  display: flex;
  align-items: center;
  gap: 5px;
  min-width: 0;
}
.lp-row-title-text {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lp-row-doc-badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  max-width: min(132px, 100%);
  padding: calc(var(--tm-space-1) * 0.5) var(--tm-space-2);
  border: 1px solid var(--tm-border-default);
  border-radius: var(--tm-radius-full);
  background: var(--tm-surface-2);
  color: var(--tm-text-muted);
  font-size: var(--tm-text-2xs);
  font-weight: var(--tm-weight-medium);
  line-height: var(--tm-leading-tight);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lp-row-preview {
  font-size: var(--tm-text-xs);
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lp-row-preview--with-badge {
  display: flex;
  align-items: center;
  gap: var(--tm-space-1);
  min-width: 0;
}
.lp-row-preview-text {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lp-row-time {
  flex-shrink: 0;
  padding-top: 2px;
  font-size: var(--tm-text-2xs);
  color: var(--text-muted);
}
.lp-row-model-dot {
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: var(--tm-radius-full);
}
.lp-row-pin-mark {
  flex-shrink: 0;
  display: inline-flex;
  color: var(--tm-brand-purple);
  opacity: 0.85;
}
.lp-row-menu-btn {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  border-radius: var(--tm-radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  font-size: var(--tm-text-md);
  line-height: 1;
  opacity: 0;
  transition: opacity var(--tm-dur-fast) var(--tm-ease-out),
    background var(--tm-dur-fast) var(--tm-ease-out),
    color var(--tm-dur-fast) var(--tm-ease-out);
}
.lp-history-row:hover .lp-row-menu-btn,
.lp-history-row:focus-within .lp-row-menu-btn,
.lp-history-row.active .lp-row-menu-btn {
  opacity: 1;
}
.lp-row-menu-btn:hover {
  background: var(--tm-brand-purple-alpha-08);
  color: var(--text-primary);
}
.lp-rename-input {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: var(--tm-text-sm);
  color: var(--text-primary);
  background: var(--tm-bg-2);
  border: 1px solid var(--tm-brand-purple-alpha-28);
  border-radius: var(--tm-radius-xs);
  padding: 1px 6px;
}
.lp-rename-input:focus-visible {
  outline: var(--tm-focus-ring-outline);
  outline-offset: 1px;
}

/* ────────────────────────────────────────────────────────────
   3) 行内 ⋯ 菜单（body 挂载 fixed 定位：重命名/置顶/归档/删除）
   ──────────────────────────────────────────────────────────── */
.lp-row-menu {
  position: fixed;
  z-index: var(--tm-z-modal-top);
  min-width: 148px;
  display: flex;
  flex-direction: column;
  padding: 4px;
  background: var(--tm-glass-bg-strong);
  backdrop-filter: blur(var(--tm-glass-blur)) saturate(var(--tm-glass-saturate));
  -webkit-backdrop-filter: blur(var(--tm-glass-blur)) saturate(var(--tm-glass-saturate));
  border: 1px solid var(--tm-border-default);
  border-radius: var(--tm-radius-lg);
  box-shadow: var(--tm-shadow-3);
  animation: tm-menu-pop var(--tm-dur-fast) var(--tm-ease-out) both;
}
@keyframes tm-menu-pop {
  from {
    opacity: 0;
    transform: translateY(-4px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.lp-row-menu-item {
  border: none;
  background: transparent;
  text-align: left;
  cursor: pointer;
  padding: 7px 10px;
  border-radius: var(--tm-radius-sm);
  font-size: var(--tm-text-sm);
  color: var(--text-secondary);
  transition: background var(--tm-dur-instant) var(--tm-ease-out),
    color var(--tm-dur-instant) var(--tm-ease-out);
}
.lp-row-menu-item:hover {
  background: var(--tm-brand-purple-alpha-08);
  color: var(--text-primary);
}
.lp-row-menu-item.danger {
  color: var(--tm-status-danger);
}
.lp-row-menu-item.danger:hover {
  background: var(--tm-status-danger-bg);
  color: var(--tm-status-danger-fg);
}
@supports not ((backdrop-filter: blur(1px))) {
  .lp-row-menu {
    background: var(--tm-glass-fallback-bg);
  }
}

/* ────────────────────────────────────────────────────────────
   4) 真归档区（动态计数 + 恢复/删除，hover 显现操作）
   ──────────────────────────────────────────────────────────── */
.lp-archive-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.lp-archive-item {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  padding: 5px 8px;
  border-radius: var(--tm-radius-sm);
  font-size: var(--tm-text-sm);
  color: var(--text-secondary);
}
.lp-archive-item:hover {
  background: var(--tm-brand-purple-alpha-08);
}
.lp-archive-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lp-row-icon-btn {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  border-radius: var(--tm-radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--tm-dur-fast) var(--tm-ease-out),
    background var(--tm-dur-fast) var(--tm-ease-out),
    color var(--tm-dur-fast) var(--tm-ease-out);
}
.lp-archive-item:hover .lp-row-icon-btn,
.lp-archive-item:focus-within .lp-row-icon-btn {
  opacity: 1;
}
.lp-row-icon-btn:hover {
  background: var(--tm-brand-purple-alpha-08);
  color: var(--text-primary);
}

/* ────────────────────────────────────────────────────────────
   6) E-8 Temp Chat 可视化：header 幽灵徽标 + composer 虚线 +
      左面板按钮 active 态（状态源 #temp-chat-toggle.active 不变）
   ──────────────────────────────────────────────────────────── */
.temp-chat-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: var(--tm-radius-full);
  color: var(--tm-brand-purple);
  background: var(--tm-brand-purple-alpha-10);
  border: 1px dashed var(--tm-brand-purple-alpha-28);
  animation: tm-menu-pop var(--tm-dur-fast) var(--tm-ease-out) both;
}
.temp-chat-badge.hidden {
  display: none;
}
#app.temp-chat-mode .composer-glass-panel {
  border-style: dashed;
  border-color: var(--tm-brand-purple-alpha-28);
}
.lp-action-btn.lp-temp-chat.active {
  color: var(--tm-brand-purple);
  background: var(--tm-brand-purple-alpha-10);
  border-color: var(--tm-brand-purple-alpha-28);
}

/* ────────────────────────────────────────────────────────────
   R2-s03 U11 模型切换器 cost reference：纯展示徽标，不参与锁定判定
   ──────────────────────────────────────────────────────────── */
.model-option-tail {
  margin-left: auto;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--tm-space-2);
  padding-top: var(--tm-space-1);
}

.model-option-tail .model-option-check {
  margin-left: 0;
  margin-top: 0;
}

.model-option-cost-ref {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--tm-space-1);
  border: 1px solid color-mix(in srgb, var(--tm-text-muted) 32%, var(--tm-border-default));
  border-radius: var(--tm-radius-full);
  background: color-mix(in srgb, var(--tm-surface-2) 72%, var(--tm-surface-3));
  color: var(--tm-text-secondary);
  font-family: var(--tm-font-mono);
  font-size: var(--tm-text-2xs);
  font-weight: var(--tm-weight-medium);
  line-height: var(--tm-leading-none);
  white-space: nowrap;
}