/* --- Theme toggle switch --- */
.theme-toggle {
  --clr-toggle-track-bg--light: #e0e0e0;
  --clr-toggle-track-bg--dark: #4a4a6a;
  --clr-toggle-knob-bg--light: #ffffff;
  --clr-toggle-knob-bg--dark: #e8e8e8;

  display: inline-flex;
  cursor: pointer;
  user-select: none;
}

.theme-toggle__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.theme-toggle__track {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: 4.5rem;
  height: 2.25rem;
  border-radius: 9999px;
  background-color: light-dark(var(--clr-toggle-track-bg--light), var(--clr-toggle-track-bg--dark));
  padding: 0 0.3rem;
  justify-content: space-between;
  transition: background-color 0.3s ease;
}

.theme-toggle__icon {
  font-size: 1rem;
  line-height: 1;
  z-index: 0;
}

.theme-toggle__knob {
  position: absolute;
  top: 50%;
  left: 0.2rem;
  transform: translateY(-50%);
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background-color: light-dark(var(--clr-toggle-knob-bg--light), var(--clr-toggle-knob-bg--dark));
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  transition: left 0.3s ease;
  z-index: 1;
}

.theme-toggle__input:checked + .theme-toggle__track .theme-toggle__knob {
  left: calc(100% - 1.75rem - 0.2rem);
}

.theme-toggle__input:focus-visible + .theme-toggle__track {
  outline: 2px solid light-dark(var(--clr-accent--light), var(--clr-accent--dark));
  outline-offset: 2px;
}