footer { align-items: center; padding-bottom: 40px; }
.footer-brand { display: inline-flex; align-items: center; gap: 9px; }
.footer-contact {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  color: #85858f;
  transition: color .2s ease, background-color .2s ease;
}
.footer-contact svg { width: 15px; height: 15px; }
.audio-toggle {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 20;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid rgba(255,255,255,.19);
  border-radius: 11px;
  background: rgba(255,255,255,.055);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: inset 0 1px rgba(255,255,255,.1), 0 4px 16px rgba(0,0,0,.2);
  color: #a1a1aa;
  cursor: pointer;
  transition: color .2s ease, background-color .2s ease, border-color .2s ease;
}
.audio-toggle[hidden] { display: none; }
.audio-toggle svg { width: 16px; height: 16px; }
.audio-toggle .audio-on, .audio-toggle[data-active="true"] .audio-off { display: none; }
.audio-toggle[data-active="true"] .audio-on { display: inline; }
.audio-toggle:focus-visible, .footer-contact:focus-visible { outline: 2px solid #ceb0ed; outline-offset: 3px; }
@media (hover: hover) {
  .footer-contact:hover { color: #fff; background: rgba(255,255,255,.06); }
  .audio-toggle:hover { color: #fff; background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.35); }
}
@media (pointer: coarse) {
  .audio-toggle::before { content: ''; position: absolute; inset: -5px; }
}
@media (prefers-reduced-motion: reduce) {
  .audio-toggle, .footer-contact { transition: none; }
}