.theme {
  bottom: 0;
  display: none;
  height: var(--space-x-large);
  left: 0;
  place-content: center;
  pointer-events: none;
  position: fixed;
  width: var(--space-x-large);
  z-index: 100;
}

.theme button {
  border-radius: 100%;
  color: var(--color-ink-5);
  cursor: pointer;
  display: grid;
  height: 1.4em;
  pointer-events: auto;
  place-content: center;
  width: 1.4em;
}

.theme svg {
  height: 0.5em;
  overflow: visible;
  pointer-events: none;
  width: auto;
}

@media(hover: hover) {

  .theme button {
    transition:
      backdrop-filter var(--transition),
      -webkit-backdrop-filter var(--transition),
      background var(--transition),
      color var(--transition),
      transform var(--transition)
    ;
  }

  .theme button:focus,
  .theme button:hover {
    backdrop-filter: blur(0.5em);
    -webkit-backdrop-filter: blur(0.5em);
    background: oklch(var(--oklch-ink) / 0.08);
    color: var(--color-ink-4);
  }

  .theme button:active {
    transform: scale(0.9);
  }

}

@media(min-width: 64em) {

  .theme {
    --theme-lift: 0em;
    --theme-size: 1.5em;
    --theme-offset: calc((var(--space-x-large) - var(--theme-size)) / 2);

    aspect-ratio: 1;
    bottom: var(--theme-offset);
    display: grid;
    height: auto;
    left: auto;
    margin-bottom: calc(var(--theme-offset) + var(--theme-lift));
    margin-left: calc(var(--space-medium) + var(--theme-offset));
    margin-top: calc(-1 * (var(--theme-size) + var(--theme-offset) + var(--theme-lift)));
    position: sticky;
    width: var(--theme-size);
  }

  .main:has(> .site--stripped) + .theme {
    --theme-lift: var(--space-medium);
  }

}

@media(prefers-color-scheme: dark) {

  .theme {
    display: none;
  }

}

body.dark .theme {
  display: none;
}