/* ============================================================
   FULL THREE-PANE APP REPLICA — sidebar / topbar / composer /
   panel-tabs / right-panel + .cm-full layout
   Scoped under .cm-app, LIGHT theme resolved.
   ============================================================ */

/* ---- Supplemental LIGHT theme tokens (not in base .cm-app set) ---- */
.cm-app {
  --text-quiet: rgba(31, 35, 43, 0.76);
  --text-subtle: rgba(82, 91, 109, 0.6);
  --text-fainter: rgba(118, 127, 144, 0.44);
  --surface-topbar: rgb(255, 255, 255);
  --surface-composer: rgb(255, 255, 255);
  --surface-control-hover: rgb(238, 242, 247);
  --surface-control-disabled: rgb(242, 244, 247);
  --surface-card-strong: rgb(255, 255, 255);
  --surface-card-muted: rgb(250, 251, 253);
  --surface-item: rgb(255, 255, 255);
  --surface-command: rgb(255, 255, 255);
  --surface-context-core: rgb(255, 255, 255);
  --surface-popover: rgb(255, 255, 255);
  --surface-raised: rgb(255, 255, 255);
  --surface-quiet: rgb(250, 251, 253);
  --surface-sidebar-opaque: rgb(255, 255, 255);
  --border-muted: rgba(17, 24, 39, 0.08);
  --border-quiet: rgba(17, 24, 39, 0.28);
  --accent-soft: rgba(37, 99, 235, 0.12);
  --control-radius: 8px;
  --control-shadow: none;
  --control-focus-ring: rgba(37, 99, 235, 0.18);
  --button-secondary-border: rgba(17, 24, 39, 0.14);
  --workflow-running: #167da3;
  --workflow-reviewing: #6b5dd3;
  --workflow-waiting: #2878ff;
  --workflow-ready: #66758f;
  --semantic-error: #c94a43;
  --semantic-warning: #a96800;
  --semantic-success: #16865a;
  --status-success: #16865a;
  --status-warning: #a96800;
  --status-error: #c94a43;
  --status-unknown: rgba(17, 20, 28, 0.25);

  /* cm derivations used below (resolve to existing base tokens) */
  --cm-surface-panel-strong: color-mix(in srgb, var(--surface-card) 94%, var(--surface-messages));
  --cm-surface-panel-solid: var(--surface-card);
  --cm-surface-panel-quiet: color-mix(in srgb, var(--surface-card) 88%, var(--surface-messages));
  --cm-surface-panel-elevated: var(--surface-card);
  --cm-surface-panel-hover: color-mix(in srgb, var(--surface-hover) 64%, var(--surface-card));
  --cm-surface-topbar: var(--surface-topbar);
  --cm-surface-composer: var(--surface-composer);
  --cm-border-strong: color-mix(in srgb, var(--border-strong) 78%, transparent);
  --cm-border-hover: color-mix(in srgb, var(--border-stronger) 92%, transparent);
  --cm-border-elevated: color-mix(in srgb, var(--border-strong) 88%, transparent);
  --cm-border-contrast: color-mix(in srgb, var(--border-subtle) 100%, transparent);
  --cm-control-radius: var(--control-radius, 10px);
  --cm-shadow-panel: 0 16px 44px color-mix(in srgb, #000 16%, transparent);

  --ds-panel-gap: 8px;
  --ds-panel-header-min-height: 26px;
  --ds-panel-header-text: var(--text-subtle);
  --ds-spinner-dur: 0.7s;
  --main-topbar-height: 44px;
  --sidebar-width: 280px;
  --right-panel-width: 300px;
}

/* ---- .cm-full three-pane grid ---- */
.cm-app.cm-full {
  display: grid;
  grid-template-columns: var(--sidebar-width, 280px) 1fr;
  width: 1280px;
  height: 760px;
  background: var(--surface-messages);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  isolation: isolate;
}

/* ===================== SIDEBAR ===================== */
.cm-app .sidebar {
  --sidebar-padding: 16px;
  --sidebar-control-radius: 8px;
  --sidebar-item-radius: 10px;
  --sidebar-small-radius: 4px;
  --sidebar-status-processing: var(--workflow-running);
  --sidebar-status-reviewing: var(--workflow-reviewing);
  --sidebar-status-unread: var(--workflow-waiting);
  --sidebar-status-ready: var(--workflow-ready);
  --sidebar-status-error: var(--semantic-error);
  --sidebar-status-border: color-mix(in srgb, var(--border-accent) 36%, transparent);
  padding: 18px var(--sidebar-padding) 18px;
  background: var(--surface-sidebar);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 0;
  overflow: hidden;
  position: relative;
}

.cm-app .sidebar-header {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 34px;
  padding: 0;
  margin-bottom: 2px;
  position: relative;
  z-index: 6;
}
.cm-app .sidebar-header-title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}
.cm-app .sidebar-title-group {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.cm-app .sidebar-title-button {
  min-width: 0;
  margin-left: 0;
  padding: 4px 2px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: var(--sidebar-control-radius);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-strong);
}
.cm-app .sidebar-title-add {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 1px solid var(--border-subtle);
  background: var(--surface-card);
  color: var(--text-muted);
  line-height: 1;
  border-radius: var(--sidebar-control-radius);
  box-shadow: var(--cm-edge-highlight);
  cursor: pointer;
  flex-shrink: 0;
}
.cm-app .sidebar-title-add svg { width: 16px; height: 16px; }

.cm-app .sidebar-header-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.cm-app .sidebar-sort-toggle,
.cm-app .sidebar-capabilities-toggle,
.cm-app .sidebar-refresh-toggle,
.cm-app .sidebar-search-toggle {
  width: 30px;
  height: 30px;
  padding: 0;
  border-radius: var(--sidebar-control-radius);
  border: none;
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  cursor: pointer;
}
.cm-app .sidebar-sort-toggle svg,
.cm-app .sidebar-capabilities-toggle svg,
.cm-app .sidebar-refresh-toggle svg,
.cm-app .sidebar-search-toggle svg { width: 14px; height: 14px; }
.cm-app .sidebar-capabilities-toggle span { display: none; }

.cm-app .sidebar-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
}
.cm-app .workspace-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cm-app .workspace-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-x: hidden;
}
.cm-app .workspace-card-content-inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 2px;
  overflow: hidden;
  min-height: 0;
}

.cm-app .workspace-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  min-height: 64px;
  padding: 12px 12px;
  border-radius: 0;
  border: none;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
  overflow-x: hidden;
  position: relative;
  isolation: isolate;
}
.cm-app .workspace-row::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--sidebar-item-radius);
  background: var(--surface-card);
  border: 1px solid color-mix(in srgb, var(--border-subtle) 72%, transparent);
  box-shadow: none;
  z-index: -1;
}
.cm-app .workspace-row.active::before {
  background: var(--surface-active);
  border-color: var(--border-accent-soft);
  box-shadow: inset 3px 0 0 var(--text-accent), var(--cm-edge-highlight);
}
.cm-app .workspace-row.active .workspace-name { color: var(--text-strong); }

.cm-app .workspace-copy {
  min-width: 0;
  padding-right: 4px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.cm-app .workspace-actions {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  flex-shrink: 0;
}
.cm-app .workspace-name-row {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}
.cm-app .workspace-title {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}
.cm-app .workspace-name {
  font-weight: 600;
  font-size: 13px;
  line-height: 1.25;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cm-app .workspace-toggle {
  width: 22px;
  height: 22px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  line-height: 1;
  padding: 0;
  border-radius: var(--sidebar-control-radius);
  opacity: 0.52;
  cursor: pointer;
}
.cm-app .workspace-toggle-icon { display: inline-block; }
.cm-app .workspace-toggle.expanded .workspace-toggle-icon { transform: rotate(90deg); }
.cm-app .workspace-meta {
  display: flex;
  align-items: center;
  min-width: 0;
}
.cm-app .workspace-meta-summary { max-width: 100%; }
.cm-app .workspace-summary {
  margin-top: 0;
  font-size: 11px;
  line-height: 1.35;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cm-app .workspace-add {
  width: auto;
  min-width: 56px;
  height: 28px;
  gap: 5px;
  padding: 0 10px;
  border-radius: var(--sidebar-control-radius);
  border: 1px solid var(--border-subtle);
  background: var(--surface-control);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
  flex-shrink: 0;
  cursor: pointer;
}
.cm-app .workspace-add span:first-child { font-size: 14px; line-height: 1; }

/* thread list + rows */
.cm-app .thread-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-left: 0;
}
.cm-app .thread-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px 10px calc(10px + var(--thread-indent, 0px));
  border-radius: var(--sidebar-item-radius);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-quiet);
  font-size: 12px;
  text-align: left;
  cursor: pointer;
  min-width: 0;
  position: relative;
}
.cm-app .thread-row.active {
  background: var(--surface-active);
  border-color: var(--border-accent-soft);
  color: var(--text-strong);
  box-shadow: inset 3px 0 0 var(--text-accent), var(--cm-edge-highlight);
}
.cm-app .thread-status {
  width: 9px;
  height: 9px;
  border-radius: 2px;
  border: 1px solid var(--sidebar-status-border);
  display: inline-block;
  align-self: center;
  flex-shrink: 0;
  background: color-mix(in srgb, var(--text-faint) 42%, transparent);
}
.cm-app .thread-status.processing {
  background: var(--sidebar-status-processing);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--sidebar-status-processing) 18%, transparent);
}
.cm-app .thread-status.reviewing {
  background: var(--sidebar-status-reviewing);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--sidebar-status-reviewing) 18%, transparent);
}
.cm-app .thread-status.ready {
  background: var(--sidebar-status-ready);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--sidebar-status-ready) 12%, transparent);
}
.cm-app .thread-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.cm-app .thread-headline {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.cm-app .thread-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.2;
}
.cm-app .thread-meta {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.cm-app .thread-time {
  color: var(--text-faint);
  font-size: 10px;
  white-space: nowrap;
  padding-top: 2px;
}
.cm-app .thread-more {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  text-align: left;
  padding: 2px 8px 2px 18px;
  cursor: pointer;
}

/* bottom rail */
.cm-app .sidebar-bottom-rail {
  margin-top: 6px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.cm-app .sidebar-usage-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cm-app .sidebar-usage-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 16px;
}
.cm-app .sidebar-usage-kicker {
  color: var(--text-faint);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.cm-app .sidebar-usage-account {
  min-height: 24px;
  padding: 0 10px;
  border-radius: var(--sidebar-small-radius);
  color: var(--text-stronger);
  font-size: 11px;
  font-weight: 700;
  background: color-mix(in srgb, var(--surface-card-muted) 78%, transparent);
  border: 1px solid var(--border-subtle);
  max-width: 70%;
  min-width: 0;
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}
.cm-app .sidebar-bottom-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: stretch;
  width: 100%;
}
.cm-app .sidebar-utility-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
  align-items: stretch;
  gap: 10px;
  width: 100%;
}
.cm-app .sidebar-labeled-button {
  width: 100%;
  height: 36px;
  padding: 0 12px;
  border-radius: var(--sidebar-control-radius);
  border: 1px solid var(--border-quiet);
  background: var(--surface-control);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  white-space: nowrap;
  cursor: pointer;
}
.cm-app .sidebar-utility-button:not(.sidebar-labeled-button) { justify-content: center; }
.cm-app .sidebar-labeled-button-icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cm-app .sidebar-labeled-button-icon svg { width: 14px; height: 14px; }
.cm-app .sidebar-labeled-button span:last-child {
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
}

/* ===================== CENTER (main) ===================== */
.cm-app .main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--right-panel-width, 300px);
  grid-template-rows: auto 1fr auto;
  gap: 0;
  padding: 0;
  background: var(--surface-messages);
  position: relative;
  min-height: 0;
  min-width: 0;
  --main-panel-padding: 28px;
  --conversation-column-width: 900px;
  overflow: hidden;
}

/* topbar */
.cm-app .main-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px var(--main-panel-padding);
  border-bottom: 1px solid var(--cm-border-default);
  background: var(--cm-surface-topbar);
  grid-column: 1;
  grid-row: 1;
  min-height: var(--main-topbar-height);
  box-shadow: 0 1px 0 color-mix(in srgb, #fff 3%, transparent);
}
.cm-app .main-topbar-left {
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
  flex: 1;
}
.cm-app .topbar-leading {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1;
}
.cm-app .topbar-collapse-button {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-control);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
}
.cm-app .topbar-collapse-button svg { width: 15px; height: 15px; }
.cm-app .workspace-title-line {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  white-space: nowrap;
  flex: 1;
}
.cm-app .workspace-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.01em;
  max-width: min(32vw, 420px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-strong);
}
.cm-app .workspace-separator {
  color: var(--text-faint);
  font-size: 10px;
  opacity: 0.7;
}
.cm-app .workspace-branch-static-button {
  border: 1px solid var(--cm-border-elevated);
  background: var(--cm-surface-panel-elevated);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 4px 10px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  justify-content: center;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  max-width: min(44vw, 520px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  box-shadow: var(--cm-edge-highlight);
}
.cm-app .actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}
.cm-app .main-header-action {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-control);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.cm-app .main-header-action svg { width: 15px; height: 15px; }

/* content (conversation) */
.cm-app .content {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  padding: 0;
  grid-column: 1;
  grid-row: 2;
  position: relative;
  background: var(--surface-messages);
  overflow: hidden;
}
.cm-app .chat-pane {
  position: relative;
  display: flex;
  flex: 1;
  min-height: 0;
  min-width: 0;
}
.cm-app .chat-pane-messages {
  display: flex;
  flex: 1;
  min-height: 0;
  min-width: 0;
  overflow-y: auto;
}
.cm-app .messages-scroll {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
  padding: 24px var(--main-panel-padding);
}
.cm-app .messages-column {
  width: min(100%, var(--conversation-column-width, 760px));
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* 此复刻的会话用 .message>.bubble(无 message-stack);.message 默认 flex 行会把
   出图卡片与气泡并排挤窄。改成纵向堆叠 + 用户气泡靠右收窄,贴近真实 app。 */
.cm-app.cm-full .message { flex-direction: column; gap: 6px; }
.cm-app.cm-full .message.user { align-items: flex-end; }
.cm-app.cm-full .message.assistant { align-items: flex-start; }
.cm-app.cm-full .message.user .bubble { max-width: 80%; }
.cm-app.cm-full .message.assistant .bubble { width: 100%; }
.cm-app.cm-full .image-generation-card { max-width: 460px; }

/* ===================== COMPOSER ===================== */
.cm-app .composer {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px var(--main-panel-padding) 20px;
  border-top: 1px solid var(--cm-border-default);
  background: var(--cm-surface-composer);
  grid-column: 1;
  grid-row: 3;
  box-shadow: 0 -1px 0 color-mix(in srgb, #fff 3%, transparent);
}
.cm-app .composer > * {
  width: min(100%, var(--conversation-column-width, 900px));
  margin-inline: auto;
}
.cm-app .composer-quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 4px 0;
}
.cm-app .composer-quick-action {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--cm-border-emphasis);
  background: color-mix(in srgb, var(--cm-surface-panel-soft) 88%, transparent);
  color: var(--text-muted);
  box-shadow: var(--cm-edge-highlight);
  cursor: pointer;
}
.cm-app .composer-quick-action-icon { display: inline-flex; align-items: center; }
.cm-app .composer-input { display: block; }
.cm-app .composer-input-area {
  position: relative;
  min-width: 0;
  border: 1px solid var(--cm-border-emphasis);
  background: color-mix(in srgb, var(--cm-surface-panel-strong) 92%, var(--surface-composer));
  border-radius: 16px;
  padding: 10px 12px 10px 10px;
  box-shadow: var(--cm-edge-highlight);
}
.cm-app .composer-input-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.cm-app .composer-attach {
  border: 1px solid var(--cm-border-strong);
  background: color-mix(in srgb, var(--cm-surface-panel-soft) 92%, transparent);
  color: var(--text-muted);
  padding: 0;
  border-radius: 999px;
  cursor: pointer;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: flex-start;
  margin-top: 5px;
  flex-shrink: 0;
}
.cm-app .composer-attach svg { width: 14px; height: 14px; }
.cm-app .composer textarea {
  min-height: 72px;
  max-height: 120px;
  height: 72px;
  width: 100%;
  flex: 1;
  resize: none;
  border-radius: 0;
  border: none;
  background: transparent;
  color: var(--text-primary);
  padding: 6px 4px 4px;
  font-size: 14px;
  line-height: 1.5;
  font-family: inherit;
  overflow-y: hidden;
}
.cm-app .composer textarea:focus { outline: none; }
.cm-app .composer textarea::placeholder { color: var(--text-muted); }
.cm-app .composer-input-actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  align-self: flex-start;
  flex-shrink: 0;
  padding: 5px 2px 0 8px;
}
.cm-app .composer-action {
  border: 1px solid var(--border-strong);
  background: color-mix(in srgb, var(--cm-surface-panel-soft) 90%, transparent);
  color: var(--text-strong);
  padding: 0;
  border-radius: 999px;
  font-size: 12px;
  cursor: pointer;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: var(--cm-edge-highlight);
}
.cm-app .composer-action svg { width: 12px; height: 12px; }

.cm-app .composer-bar {
  display: flex;
  align-items: center;
  padding-top: 10px;
  border-top: 1px solid var(--cm-border-soft);
  gap: 12px;
}
.cm-app .composer-meta {
  display: flex;
  align-items: center;
  flex: 1 1 auto;
  min-width: 0;
  gap: 7px;
  flex-wrap: nowrap;
  overflow: visible;
}
.cm-app .composer-meta-control {
  box-sizing: border-box;
  flex: 0 0 auto;
  height: 30px;
  min-height: 30px;
}
.cm-app .composer-select-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0 8px;
  border: 1px solid var(--button-secondary-border, var(--cm-border-default));
  border-radius: var(--cm-control-radius, 10px);
  background: var(--surface-card);
  width: max-content;
}
.cm-app .composer-plan-toggle-wrap {
  padding: 0 8px;
  min-width: 78px;
  justify-content: center;
}
.cm-app .composer-plan-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 100%;
  font-size: 11px;
  cursor: pointer;
}
.cm-app .composer-plan-toggle-icon {
  display: inline-flex;
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  color: var(--text-muted);
}
.cm-app .composer-plan-toggle-icon svg { width: 14px; height: 14px; }
.cm-app .composer-plan-toggle-label {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1;
}
.cm-app .composer-icon {
  display: inline-flex;
  width: 14px;
  height: 14px;
  color: var(--text-muted);
}
.cm-app .composer-icon svg { width: 14px; height: 14px; }
.cm-app .composer-select {
  border: none;
  background: transparent;
  color: var(--text-subtle);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 0;
  cursor: pointer;
  height: 100%;
  white-space: nowrap;
  line-height: 1;
}
.cm-app .composer-select .ds-chevron {
  width: 12px;
  height: 12px;
  color: var(--text-faint);
}
.cm-app .composer-context {
  margin-left: auto;
  padding-left: 4px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-width: max-content;
  font-size: 10px;
  color: var(--text-muted);
}
.cm-app .composer-context-meter {
  --context-used: 4;
  --context-meter-color: var(--border-accent);
  --context-meter-track: color-mix(in srgb, var(--border-strong) 42%, transparent);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 3px 6px 3px 4px;
  border-radius: 999px;
  color: var(--text-subtle);
}
.cm-app .composer-context-ring {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  background:
    radial-gradient(circle, var(--surface-context-core) 54%, transparent 56%),
    conic-gradient(
      from 180deg,
      var(--context-meter-color) calc(var(--context-used) * 1%),
      var(--context-meter-track) 0
    );
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--border-strong) 56%, transparent),
    0 0 0 1px color-mix(in srgb, var(--surface-context-core) 88%, transparent);
}
.cm-app .composer-context-value {
  font-size: 9px;
  font-weight: 700;
  line-height: 1;
  color: var(--text-quiet);
}
.cm-app .composer-context-copy {
  display: grid;
  gap: 1px;
  line-height: 1.1;
  white-space: nowrap;
}
.cm-app .composer-context-label {
  color: var(--text-stronger);
  font-size: 10px;
  font-weight: 700;
}
.cm-app .composer-context-tokens {
  color: var(--text-faint);
  font-size: 9px;
  font-weight: 600;
}

/* ===================== RIGHT PANEL ===================== */
.cm-app .right-panel {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  border-left: 1px solid var(--cm-border-default);
  background: var(--surface-right-panel);
  height: 100%;
  grid-column: 2;
  grid-row: 1 / -1;
  min-height: 0;
  overflow: hidden;
}
.cm-app .right-panel-top {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* panel frame / tabs */
.cm-app .ds-panel {
  display: flex;
  flex-direction: column;
  gap: var(--ds-panel-gap);
  background: transparent;
  padding: 12px;
  min-height: 0;
  flex: 1;
}
.cm-app .ds-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: var(--ds-panel-header-min-height);
  color: var(--ds-panel-header-text);
}
.cm-app .ds-panel-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 34px;
  color: var(--ds-panel-header-text);
}
.cm-app .ds-panel-toolbar .ds-panel-meta {
  flex: 1;
  justify-content: space-between;
  min-width: 0;
}
.cm-app .ds-panel-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-faint);
}

.cm-app .panel-tabs {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 4px;
  border-radius: 8px;
  background: var(--surface-control);
  border: 1px solid var(--border-subtle);
  max-width: 100%;
  overflow-x: auto;
  box-shadow: var(--cm-edge-highlight);
}
.cm-app .ds-panel-header .panel-tabs { width: 100%; }
.cm-app .panel-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex: 1 1 0;
  min-width: 0;
  padding: 5px 7px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-subtle);
  font-size: 11px;
  font-weight: 650;
  white-space: nowrap;
  cursor: pointer;
}
.cm-app .panel-tab.is-active {
  background: var(--surface-control-hover);
  color: var(--text-emphasis);
}
.cm-app .panel-tab-icon { display: none; align-items: center; flex: 0 0 auto; }
.cm-app .panel-tab-label { min-width: 0; }

/* file tree panel */
.cm-app .file-tree-panel { gap: 10px; }
.cm-app .file-tree-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-faint);
  width: 100%;
  justify-content: space-between;
}
.cm-app .file-tree-count {
  font-size: 11px;
  color: var(--text-faint);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cm-app .file-tree-toolbar-actions {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.cm-app .file-tree-refresh,
.cm-app .file-tree-toggle {
  padding: 4px;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--text-faint);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.cm-app .file-tree-refresh svg,
.cm-app .file-tree-toggle svg { width: 14px; height: 14px; }

.cm-app .ds-panel-search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 10px;
  background: var(--surface-raised);
  border: 1px solid var(--border-subtle);
  color: var(--text-faint);
  box-shadow: var(--cm-edge-highlight);
}
.cm-app .ds-panel-search-icon {
  width: 14px;
  height: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.cm-app .ds-panel-search-icon svg { width: 14px; height: 14px; }
.cm-app .ds-panel-search-input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 12px;
  outline: none;
  font-family: inherit;
}
.cm-app .ds-panel-search-input::placeholder { color: var(--text-faint); }
.cm-app .file-tree-search-filter {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 7px;
  padding: 0;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-faint);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.cm-app .file-tree-search-filter svg { width: 14px; height: 14px; }

.cm-app .file-tree-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
  flex: 1;
  padding-right: 2px;
  min-height: 0;
}
.cm-app .file-tree-row-wrap {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 28px;
}
.cm-app .file-tree-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-emphasis);
  font-size: 11px;
  text-align: left;
  width: 100%;
}
.cm-app .file-tree-row.is-file { padding-left: 24px; }
.cm-app .file-tree-row.is-folder { font-weight: 600; }
.cm-app .file-tree-spacer { width: 14px; height: 14px; }
.cm-app .file-tree-icon {
  color: var(--text-faint);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.cm-app .file-tree-icon svg { width: 12px; height: 12px; }
.cm-app .file-tree-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cm-app .file-tree-meta-date {
  margin-left: auto;
  font-size: 10px;
  color: var(--text-fainter);
  flex-shrink: 0;
  padding-left: 8px;
}