/* Menú de navegación entre vitrinas — diseño mínimo */
.mhb-nav {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1.4rem;
  background: #fbf8f1;
  border-bottom: 1px solid rgba(31, 30, 27, 0.18);
  position: sticky;
  top: 0;
  z-index: 5;
}
.mhb-nav-btn {
  font: inherit;
  font-size: 0.85em;
  min-height: 44px;
  min-width: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  padding: 0 0.65rem;
  background: transparent;
  color: #1f1e1b;
  border: 1px solid rgba(31, 30, 27, 0.18);
  border-radius: 2px;
  cursor: pointer;
  text-decoration: none;
}
.mhb-nav-btn:hover {
  border-color: #a8832c;
  color: #1f1e1b;
}
.mhb-nav-btn[aria-disabled="true"] {
  opacity: 0.35;
  pointer-events: none;
}
.mhb-nav-sel {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: 0.82em;
  min-height: 44px;
  padding: 0 0.4rem;
  background: transparent;
  color: #1f1e1b;
  border: 1px solid rgba(31, 30, 27, 0.18);
  border-radius: 2px;
}
.mhb-nav-pos {
  font: inherit;
  font-size: 0.78em;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 0.5rem;
  color: #7a6a4e;
  white-space: nowrap;
}
.mhb-nav-btn:focus-visible,
.mhb-nav-sel:focus-visible {
  outline: 3px solid #a8832c;
  outline-offset: 2px;
}
.progreso {
  height: 3px;
  background: rgba(31, 30, 27, 0.12);
}
.progreso i {
  display: block;
  height: 100%;
  width: 0;
  background: #a8832c;
  transition: width 0.2s ease;
}