core/themes/olivero/css/components/header-sticky-toggle.css
/*
 * DO NOT EDIT THIS FILE.
 * See the following change record for more information,
 * https://www.drupal.org/node/3084859
 * @preserve
 */

/**
 * @file
 * Sticky Header Toggle Button.
 *
 * This button shows on the left hand side of the header (in LTR layouts), and
 * toggles fixing the header to the top of the viewport.
 */

.sticky-header-toggle {
  display: none;
}

@media (min-width: 75rem) {
  .sticky-header-toggle {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    width: var(--content-left);
    height: var(--sp6);
    pointer-events: none;
    opacity: 0;
    border: 0;
    outline: 0;
    background-color: var(--color--primary-50);
  }

  .sticky-header-toggle:focus {
    cursor: pointer;
    pointer-events: auto;
    opacity: 1;
    outline: solid 2px var(--color--white);
    outline-offset: -4px;
  }
}

@media (min-width: 75rem) {
  body:not(.is-always-mobile-nav) .is-fixed .sticky-header-toggle {
    visibility: visible;
  }
}

@media (min-width: 75rem) {
  body.is-always-mobile-nav .sticky-header-toggle {
    visibility: hidden;
  }
}

.sticky-header-toggle__icon {
  --icon-bar-height: 0.1875rem;
  --icon-bar-space: 0.4375rem;

  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: var(--sp2);
  height: calc((var(--icon-bar-height) * 3) + (var(--icon-bar-space) * 2));
  /* Height = 3 bars + 2 spaces */
  transition: opacity 0.2s;
  pointer-events: none;
  transform-style: preserve-3d;
}

.sticky-header-toggle__icon > span {
  display: block;
  width: 100%;
  height: var(--icon-bar-height);
  transition: transform 0.2s;
  transform-origin: center;
  background-color: var(--color--white);
}

.is-fixed .sticky-header-toggle {
  cursor: pointer;
  pointer-events: auto;
  opacity: 1;
}

:is([aria-checked="true"] .sticky-header-toggle__icon) > span:nth-child(1) {
  transform: translateY(calc(var(--icon-bar-height) + var(--icon-bar-space))) rotate(-45deg);
}

:is([aria-checked="true"] .sticky-header-toggle__icon) > span:nth-child(2) {
  opacity: 0;
}

:is([aria-checked="true"] .sticky-header-toggle__icon) > span:nth-child(3) {
  transform: translateY(calc(0px - var(--icon-bar-height) - var(--icon-bar-space))) rotate(45deg);
}
