/* Signal production shell. The design-study chooser stays in the old preview. */
.site-header .theme-toggle { margin-left: 0; min-height: 44px; white-space: nowrap; }
.main-nav { margin-left: auto; }
.button[aria-disabled=true] { pointer-events: none; opacity: .75; }
.content-unavailable { padding: 24px; border: 1px solid var(--line); }
.intake-disabled { padding: 16px 0; color: var(--muted); line-height: 1.6; }
@media(max-width:760px) {
  .site-header { flex-wrap: wrap; min-height: 76px; height: auto; padding-top: 12px; padding-bottom: 12px; }
  .site-header .theme-toggle { font-size: 11px; gap: 5px; padding: 4px 0; }
  .main-nav { gap: 12px; }
}