/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

:host {
  display: grid;
  gap: 8px;
  justify-content: space-between;
  align-items: center;
}

:host([disabled]) {
  opacity: 0.4
}

button,
label {
  grid-row: 1;
}

p {
  grid-row: 2;
  font-size: .85em;
  line-height: 1.25;
  color: var(--in-content-deemphasized-text);
  margin: 0;
  grid-column: 1 / -1;
}

.toggle-button {
  --button-height: 16px;
  --button-half-height: 8px;
  --button-width: 32px;
  --button-border-width: 1px;
  /* dot-size = button-height - 2*dot-margin - 2*button-border-width */
  --dot-size: 12px;
  --dot-margin: 1px;
  /* --dot-transform-x = button-width - 2*dot-margin - dot-size - 2*button-border-width */
  --dot-transform-x: 16px;
  --border-color: #8F8F9D;
}

.toggle-button {
  appearance: none;
  padding: 0;
  margin: 0;
  border: var(--button-border-width) solid var(--border-color);
  height: var(--button-height);
  width: var(--button-width);
  border-radius: var(--button-half-height);
  background-color: var(--in-content-button-background);
  box-sizing: border-box;
}

.toggle-button:focus-visible {
  outline: var(--in-content-focus-outline-width) solid var(--in-content-focus-outline-color);
  outline-offset: var(--in-content-focus-outline-offset);
}

.toggle-button:enabled:hover {
  background-color: var(--in-content-button-background-hover);
  border-color: var(--border-color);
}

.toggle-button:enabled:active {
  background-color: var(--in-content-button-background-active);
  border-color: var(--border-color);
}

.toggle-button[aria-pressed="true"] {
  background-color: var(--in-content-primary-button-background);
  border-color: transparent;
}

.toggle-button[aria-pressed="true"]:enabled:hover {
  background-color: var(--in-content-primary-button-background-hover);
  border-color: transparent;
}

.toggle-button[aria-pressed="true"]:enabled:active,
.toggle-button[aria-pressed="true"].toggle-button:checked:enabled:hover:active {
  background-color: var(--in-content-primary-button-background-active);
  border-color: transparent;
}

.toggle-button::before {
  display: block;
  content: "";
  background-color: var(--border-color);
  height: var(--dot-size);
  width: var(--dot-size);
  margin: var(--dot-margin);
  border-radius: 50%;
  outline: 1px solid transparent;
  outline-offset: -1px;
  translate: 0;
}

.toggle-button[aria-pressed="true"]::before {
  translate: var(--dot-transform-x);
  /* TODO: Bug 1798404 - This color doesn't match the spec in dark mode. This should
  be re-visited when we're defining tokens. */
  background-color: var(--in-content-box-background);
}

.toggle-button[aria-pressed="true"]:-moz-locale-dir(rtl)::before,
.toggle-button[aria-pressed="true"]:dir(rtl)::before {
  translate: calc(-1 * var(--dot-transform-x));
}

.toggle-button[aria-pressed="true"]:not(:active, :hover:active)::before {
  outline-color: var(--in-content-box-background);
}

@media (prefers-reduced-motion: no-preference) {
  .toggle-button::before {
    transition: translate 100ms;
  }
}