$off-background-colour: #d3d3d3;
$on-background-colour: #2f7d32;
$switcher-width: 62px;
$switcher-height: 28px;

.switcher {
  position: relative;
  width: 18rem;
  height: 28px;
  margin: 0;
}

.switcher input {
  position: absolute;
  top: 0;
  inset-inline-start: 0;
  z-index: 2;
  width: $switcher-width;
  height: $switcher-height;
  margin: 0;
  cursor: pointer;
  opacity: 0;
}

.switcher input:checked {
  z-index: 1;
}

.switcher input:checked + label {
  z-index: 0;
  opacity: 1;
}

.switcher input:not(:checked) + label {
  z-index: 3;
  opacity: 0;
}

.switcher input:focus ~ .toggle-outside {
  border-color: var(--focus);
  box-shadow: 0 0 0 .2rem rgba(26, 70, 107, .25);
}

.switcher label {
  position: absolute;
  inset-inline-start: 0;
  display: inline-block;
  width: auto;
  min-width: 6rem;
  height: 100%;
  margin-bottom: 0;
  margin-inline-start: 70px;
  line-height: $switcher-height;
  text-align: start;
  transition: opacity .25s ease;
}

.switcher .toggle-outside {
  position: absolute;
  inset-inline-start: 0;
  box-sizing: border-box;
  width: 58px;
  height: 100%;
  overflow: hidden;
  background: $off-background-colour;
  border: 1px solid rgba(0, 0, 0, .18);
  transition: .2s ease all;
  transform: translate3d(0, 0, 0);
}

.switcher input ~ input:checked ~ .toggle-outside {
  background: $on-background-colour;
}

.switcher .toggle-inside {
  position: absolute;
  left: 0;
  width: ($switcher-width - 6) * .5;
  height: $switcher-height;
  background: #fff;
  transition: .4s ease all;
}

.switcher input ~ input:checked ~ .toggle-outside .toggle-inside {
  left: ($switcher-width * .5) - 1;
}