/* Cabecera y menú compartidos. */
#site-header.menu-preview-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 0 0 18px;
}
.menu-preview-header .site-title {
  min-width: 0;
  gap: 14px;
  font-size: 2.5rem;
  line-height: 1.2;
}
.menu-preview-header .logo-ga { height: 80px; }
.preview-tagline {
  display: block;
  margin-top: 6px;
  color: #111;
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .04em;
}
.preview-environment { color: #b32626; font-size: .65rem; font-weight: 600; letter-spacing: .04em; white-space: nowrap; }
.preview-header-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.preview-header-actions > .preview-disclosure { order: 1; }
.preview-header-actions > .preview-languages { order: 2; }
.preview-languages,
.preview-menu-languages {
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
  color: var(--muted);
  font-size: .95rem;
}
.preview-languages a,
.preview-menu-languages a { text-decoration: none; }
.preview-disclosure summary {
  display: flex;
  align-items: center;
  justify-content: center;
  width: auto;
  min-width: 44px;
  min-height: 44px;
  gap: 10px;
  padding: 0;
  border: 0;
  list-style: none;
  cursor: pointer;
  color: var(--text);
  font: inherit;
  font-size: 1.5rem;
  line-height: 1;
  background: none;
}
.preview-disclosure summary::-webkit-details-marker { display: none; }
.preview-toggle-label {
  font-size: 1rem;
  white-space: nowrap;
}
.preview-menu-close { display: none; }
.preview-disclosure[open] .preview-menu-open { display: none; }
.preview-disclosure[open] .preview-menu-close { display: block; }
.preview-navigation {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  width: max-content;
  max-width: calc(100vw - 36px);
  max-height: calc(100dvh - 160px);
  overflow-y: auto;
  padding: 10px 34px;
  text-align: right;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 12px 28px rgba(0,0,0,.16);
}
.preview-navigation > a {
  display: block;
  padding: .25rem 0;
  border-bottom: 1px solid transparent;
  line-height: 1.2;
  white-space: nowrap;
  text-align: right;
  text-decoration: none;
}
.preview-navigation > a:hover { border-bottom-color: var(--text); }
.preview-navigation > a[aria-current] {
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.preview-menu-languages {
  margin-top: 6px;
  padding-top: 8px;
  border-top: 1px solid #ddd;
}
.preview-menu-languages a { padding: 0; line-height: 1.2; }
.menu-preview-header a:focus-visible,
.preview-disclosure summary:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 3px;
}
@media (min-width: 769px) {
  .preview-tagline { font-size: 14px; }
  .preview-toggle-label { font-size: 18px; }
  .preview-header-actions > .preview-languages {
    font-size: 13px;
    padding-top: 8px;
    border-top: 1px solid #ddd;
  }
}
@media (max-width: 768px) {
  #site-header.menu-preview-header { gap: 8px; padding-bottom: 8px; }
  .menu-preview-header .site-title { gap: 10px; font-size: 25.6px; }
  .menu-preview-header .site-title > span { min-width: 0; }
  .menu-preview-header .logo-ga { height: 50px; flex-shrink: 0; }
  .preview-header-actions > .preview-languages { display: none; }
  .preview-disclosure summary { width: 44px; gap: 0; padding: 0; border: 0; border-radius: 0; background: none; }
  .preview-toggle-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
  .preview-tagline { font-size: 10px; letter-spacing: 0; }
}