/* Phase 18 + V4 accessibility, reflow and browser hardening. */
.site-header{isolation:isolate}
.menu-toggle{min-width:44px;min-height:44px}
.speaker-turn.is-muted{opacity:.68}
.scene--signal .mono-label{color:var(--text-muted)}
.knowledge-takeaways .eyebrow,.knowledge-takeaways .mono-label{color:var(--text-muted)}
.quote-group[data-invalid=true]{border-color:var(--state-danger);box-shadow:0 0 0 2px color-mix(in srgb,var(--state-danger) 26%,transparent)}
.quote-group[data-invalid=true] legend{color:var(--state-danger)}
.quote-options button,.conversation-choice,.bloom-output,.speaker-toolbar button,.format-toggle button,.scale-switch button,.knowledge-queries button,.config-step button,.audio-toggle,.subtitle-playback button,.trace-source,.timecode,.text-button{touch-action:manipulation}
.audio-seek,.subtitle-playback input[type=range]{min-height:28px}
.quote-notes textarea{min-height:120px}
.lead-privacy-note{max-width:900px;color:var(--text-muted);font-size:.88rem;line-height:1.58}
.lead-privacy-note a{font-weight:700;color:var(--text-secondary)}
[data-knowledge-result-set][hidden]{display:none!important}

@media(max-width:980px){
  .primary-nav{max-height:calc(100dvh - 96px);overflow:auto;overscroll-behavior:contain}
  .primary-nav a{display:flex;align-items:center;min-height:44px;padding:8px 4px}
  .nav-group{gap:4px}
  .nav-group__label{padding:6px 4px}
  .scene-link{margin-top:28px}
}
@media(max-width:560px){
  .site-header__inner{padding-top:11px;padding-bottom:11px}
  .primary-nav{top:64px;left:10px;right:10px;padding:17px}
  .scene{padding:56px 0}
  .section-heading{margin-bottom:34px}
  .audio-player,.subtitle-file,.quote-group,.quote-result,.contact-next{border-radius:18px}
  .audio-player{padding:17px}
  .demo-turn{padding:18px 15px}
  .trace-demo{padding:20px 15px}
  .quote-result{padding:20px 15px}
  .quote-configurator{padding:56px 0}
  .footer-links{grid-template-columns:1fr}
}
@media(max-width:360px){
  .site-header__inner,.site-footer__inner,.scene__inner,.commercial-shell,.quote-shell{padding-left:16px;padding-right:16px}
  .brand-word{font-size:.96rem}
  .brand-mark{width:27px;height:27px}
  .audio-player__controls{grid-template-columns:44px minmax(0,1fr)}
  .conversation-choice,.bloom-output,.quote-options button,.scale-switch button,.knowledge-queries button,.config-step button{width:100%}
}
@media(forced-colors:active){
  .conversation-choice[aria-pressed=true],.bloom-output[aria-pressed=true],.speaker-toolbar button[aria-pressed=true],.format-toggle button[aria-pressed=true],.quote-options button[aria-pressed=true],.scale-switch button[aria-pressed=true],.knowledge-queries button[aria-pressed=true],.config-step button[aria-pressed=true]{outline:2px solid Highlight;outline-offset:-4px}
  .quote-group[data-invalid=true]{border:2px solid Mark}
}