/* Workspace navigation and embedded pages share one page header. */
.chat-main:is(.skills-workspace-mode, .library-workspace-mode, .scheduled-workspace-mode, .settings-workspace-mode, .project-workspace-mode) #openArtifact {
  display: none;
}
.settings-workspace-mode .settings-head > h2 { display: none; }
.mobile-session-label,
.mobile-session-backdrop { display: none; }
@media (max-width: 840px) {
  .app-shell .sidebar {
    display: block;
    flex: 0 0 auto;
    width: 100%;
    padding: 0;
  }
  .app-shell .sidebar .sidebar-topbar {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 4px;
    padding: 8px 12px;
  }
  .app-shell .sidebar .sidebar-product {
    grid-column: 1 / -1;
    min-height: 36px;
    padding: 0 92px 0 4px;
    margin-bottom: 4px;
  }
  .app-shell .sidebar .sidebar-product-name { display: inline; }
  .app-shell .sidebar .sidebar-toggle {
    position: static;
    display: inline-flex;
    flex: 0 0 auto;
    width: auto;
    height: 36px;
    padding: 0 8px;
    gap: 5px;
    border-radius: 8px;
    font-size: 13px;
    opacity: 1;
  }
  .app-shell .sidebar .mobile-session-label { display: inline; }
  .app-shell .sidebar .sidebar-toggle svg,
  .app-shell.sidebar-collapsed .sidebar .sidebar-toggle svg { transform: rotate(-90deg); }
  .app-shell.mobile-sessions-open .sidebar .sidebar-toggle svg { transform: rotate(90deg); }
  .app-shell.mobile-sessions-open .sidebar .sidebar-toggle { background: var(--sidebar-hover) !important; }
  .app-shell.mobile-sessions-open .mobile-session-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 70;
    border: 0 !important;
    border-radius: 0 !important;
    padding: 0;
    background: rgba(32, 33, 36, 0.18) !important;
  }
  .app-shell.mobile-sessions-open .sidebar .chat-session-panel {
    display: flex;
    position: absolute;
    top: calc(100% + 6px);
    left: 12px;
    right: 12px;
    max-height: calc(100dvh - 180px);
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 14px 10px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--sidebar-bg) !important;
    box-shadow: 0 14px 36px rgba(32, 33, 36, 0.16);
  }
  .app-shell.mobile-sessions-open .sidebar .session-list { flex: 0 0 auto; overflow: visible; }
  .app-shell.mobile-sessions-open .sidebar .chat-session-panel > * { flex-shrink: 0; }
  .app-shell.mobile-sessions-open .sidebar .row-more { opacity: 1; }
  .app-shell .sidebar .sidebar-action-row { display: flex; min-width: 0; }
  .app-shell .sidebar .session-new,
  .app-shell .sidebar .sidebar-library-link {
    width: 100%;
    min-width: 0;
    min-height: 40px;
    justify-content: center;
    padding: 0 4px;
    gap: 4px;
    font-size: 13px;
    white-space: nowrap;
  }
  .app-shell .sidebar .session-new span,
  .app-shell .sidebar .sidebar-library-link span { display: inline; }
  .app-shell .sidebar .session-new svg,
  .app-shell .sidebar .sidebar-library-link svg { width: 14px; height: 14px; flex: 0 0 14px; }
  .app-shell .sidebar .sidebar-footer {
    position: absolute;
    top: 8px;
    right: 12px;
    bottom: auto;
    display: flex;
    align-items: center;
    width: auto;
    height: 36px;
    margin: 0;
    padding: 0 !important;
    gap: 4px;
    overflow: visible;
  }
  .app-shell .sidebar .sidebar-footer .sidebar-user { width: 36px; min-height: 36px; padding: 6px; justify-content: center; }
  .app-shell .sidebar .sidebar-footer .sidebar-user-name,
  .app-shell .sidebar .sidebar-footer .sidebar-user-caret { display: none; }
  .app-shell .sidebar .sidebar-footer .sidebar-user-menu { top: calc(100% + 8px); bottom: auto; left: auto; right: 0; }
  .app-shell .sidebar .sidebar-footer .sidebar-user-menu-item { max-width: none; min-height: 40px; justify-content: flex-start; }
  .app-shell .sidebar .sidebar-footer .sidebar-user-menu-item span { display: inline; }
}
/* English labels need more room than the Chinese labels on phone screens. */
@media (max-width: 480px) {
  html:lang(en) .app-shell .sidebar .sidebar-topbar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 360px) {
  .app-shell .sidebar .session-new,
  .app-shell .sidebar .sidebar-library-link { font-size: 12px; gap: 3px; }
}