.audio-toggle{
  position:fixed;
  top:18px;
  right:18px;
  z-index:50;
  width:46px;
  height:46px;
  border-radius:50%;
  border:1px solid rgba(201,160,90,.55);
  background:rgba(67,24,43,.56);
  color:#f7dba5;
  backdrop-filter:blur(12px);
  box-shadow:0 14px 40px rgba(0,0,0,.28);
  display:grid;
  place-items:center;
  font-size:20px;
  cursor:pointer;
  transition:transform .22s ease, background .22s ease, border-color .22s ease, opacity .22s ease;
}
.audio-toggle[hidden]{display:none}
.audio-toggle:hover{transform:translateY(-2px) scale(1.04);background:rgba(92,33,64,.68);border-color:rgba(247,219,165,.75)}
.audio-toggle:active{transform:scale(.96)}
.audio-toggle.is-muted{opacity:.72}
.audio-toggle:focus-visible{outline:2px solid rgba(247,219,165,.7);outline-offset:4px}
@media(max-width:560px){.audio-toggle{top:14px;right:14px;width:42px;height:42px;font-size:18px}}