:root {
    --clr-fg: #fff7;
    --clr-active-fg: #fff9;
  }
  
  html,
  body {
    margin: 0;
    padding: 0;
  }
  
  canvas {
    position: fixed;
    z-index: -2;
    width: 100%;
    height: auto;
    inset: 0;
    user-select: none;
  }
  
  .control {
    display: grid;
    place-content: center;
    position: absolute;
    width: 200px;
    height: 200px;
    inset: 0;
    margin: auto;
  }
  
  .control_label {
    opacity: 0;
    display: grid;
    place-content: center;
    transition: opacity 1200ms cubic-bezier(0.075, 0.82, 0.165, 1);
  }
  
  .control.initial .control_label {
    opacity: 1;
  }
  
  .control:hover .control_label {
    opacity: 1;
  }
  
  .control_display,
  .control_input {
    grid-row: 1/-1;
    grid-column: 1/-1;
    position: relative;
    cursor: pointer;
  }
  
  .control_display {
    display: grid;
    place-content: center;
    font-size: 0.825em;
    font-weight: 500;
  }
  
  .control_display svg {
    --duration: 50ms;
    display: inline-block;
    stroke-linejoin: round;
    stroke-width: 2px;
    fill: var(--clr-fg);
    transition: var(--duration);
    transform: scale(1.1);
  }
  
  .control_display svg .speaker-vol {
    stroke-linecap: round;
  }
  
  .control_display svg .speaker-on {
    fill: none;
    stroke: none;
    opacity: 0;
    transition: opacity var(--duration);
  }
  
  .control_label:has([type="checkbox"]:checked) svg {
    fill: var(--clr-active-fg);
  }
  
  .control_label:has([type="checkbox"]:checked) svg .speaker-on {
    opacity: 1;
    fill: var(--clr-active-fg);
  }
  
  input[type="checkbox"] {
    -webkit-appearance: none;
    appearance: none;
    background-color: transparent;
    position: relative;
    margin: 0;
    width: 6em;
    height: 6em;
    transform: scale(1);
    font: inherit;
    color: currentColor;
    border-width: 0.15rem;
    border-style: solid;
    border-radius: 50%;
    border-color: var(--clr-fg);
    display: grid;
    place-content: center;
    background: #11111199;
    box-shadow: 0px 0px 12px 0 #a5a5a5;
  }
  
  input[type="checkbox"]:hover {
    transform: scale(1.1);
    transition: 300ms cubic-bezier(0.075, 0.82, 0.165, 1);
  }
  
  input[type="checkbox"]:is(:checked, :active),
  input[type="checkbox"]:is(:checked, :active) + .control_display svg {
    transform: scale(1);
  }
  
  input[type="checkbox"]::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: 0 2px 5px 2px #fff9, 0 2px 10px 10px #fff7, 0 2px 20px 20px #fff5;
    opacity: 0;
    transform: scale(0.95);
    transition: 400ms;
  }
  
  input[type="checkbox"]:hover::after {
    transform: scale(1.05);
    opacity: 1;
  }