/* Qihui V68: return-to-home link in the workbench top bar */
.qh-home-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-left: 12px;
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1;
  color: #4b5563;
  text-decoration: none;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.qh-home-link::before {
  content: "←";
  font-size: 14px;
  line-height: 1;
}
.qh-home-link:hover {
  background: #f3f4f6;
  color: #111827;
}
[data-theme="dark"] .qh-home-link {
  color: #cbd5e1;
}
[data-theme="dark"] .qh-home-link:hover {
  background: #1f2937;
  color: #f9fafb;
}
@media (max-width: 640px) {
  .qh-home-link {
    margin-left: 2px;
    padding: 4px 6px;
    font-size: 12px;
  }
}

/* Qihui V71: the sidebar close (X) duplicates the header hamburger; keep one toggle */
.app-shell .sidebar .sidebar-top { display: none !important; }
.app-shell .sidebar .sidebar-nav { padding-top: 28px !important; }