.bgm-toggle{position:fixed;left:.5rem;bottom:max(.5rem,env(safe-area-inset-bottom));z-index:80;display:grid;place-items:center;width:44px;height:44px;padding:0;border:0;border-radius:50%;background:transparent;color:#fff;opacity:.7;filter:drop-shadow(0 1px 4px rgb(0 0 0/.8));cursor:pointer;touch-action:manipulation;transition:opacity .2s,background-color .2s}
.bgm-toggle:hover{background:rgb(255 255 255/.1);opacity:1}
.bgm-toggle:focus-visible{outline:2px solid #fff;outline-offset:3px}
.bgm-toggle svg{width:22px;height:22px}
.bgm-toggle.is-playing .bgm-muted,.bgm-toggle:not(.is-playing) .bgm-wave{display:none}
.bgm-toggle--header,.bgm-toggle--pulse{position:static;flex:none;filter:none}
.bgm-toggle--pulse{color:#b5ccd8}
@media(max-width:380px){.bgm-toggle--header{width:36px}}