.toggle-theme {
  position: relative;
  display: block;
  width: 60px;
  height: 34px;
  margin: 0 2em;
  padding: 0;
}

.toggle-theme input {
  width: 0;
  height: 0;
  opacity: 0;
}

.toggle-theme-slider {
  position: absolute;
  inset: 0 0 0 0;
  width: 100%;
  margin-left: 4rem;
  cursor: pointer;
  -webkit-transition: 0.4s;
  transition: 0.4s;
  border: 2px solid transparent;
  border-radius: 34px;
  background-color: var(--light-gray);
}

.toggle-theme-slider:hover,
.toggle-theme-slider:focus {
  border: 2px solid var(--font-color);
}

.toggle-theme-slider::before {
  position: absolute;
  bottom: -1px;
  left: -1px;
  width: 26px;
  height: 26px;
  content: "";
  -webkit-transition: 0.4s;
  transition: 0.4s;
  border: 3px solid var(--font-color);
  background-color: var(--background-color);
}

input:checked + .toggle-theme-slider {
  background-color: var(--dark-gray);
}

input:focus + .toggle-theme-slider {
  box-shadow: 0 0 1px var(--theme-toggle-slider-color);
}

input:checked + .toggle-theme-slider::before {
  -webkit-transform: translateX(30px);
  -ms-transform: translateX(30px);
  transform: translateX(30px);
}

.toggle-theme-slider::before {
  border-radius: 50%;
}