@import 'variables';

/**
 * Lightbox link
 *
 */

.tobii-zoom {
  border: 0;
  box-shadow: none;
  display: inline-block;
  position: relative;
  text-decoration: none;


  & img {
    display: block;
  }

  &__icon {
    align-items: center;
    background-color: var(--tobii-zoom-icon-background);
    top: 0.5em;
    color: var(--tobii-zoom-icon-color);
    display: flex;
    justify-content: center;
    line-height: 1;
    position: absolute;
    right: 0.5em;
    width: 1.78em;
    height: 1.78em;


    & svg {
      fill: none;
      height: 1.5em;
      pointer-events: none;
      stroke-linecap: round;
      stroke-linejoin: round;
      stroke-width: 1.5;
      stroke: currentColor;
      width: 1.5em;
    }
  }
}

// Hide scrollbar if lightbox is displayed
body.tobii-is-open {
  overflow-y: hidden;
}

// Prevent background scrolling on Safari iOS devices.
.tobii-is-open,
.tobii-image {
  touch-action: none;
}

/**
 * Lightbox
 *
 */

.tobii {
  background-color: var(--tobii-lightbox-background);
  bottom: 0;
  box-sizing: border-box;
  contain: strict;
  font-size: var(--tobii-base-font-size);
  left: 0;
  line-height: 1.5;
  overflow: hidden;
  position: fixed;
  right: 0;
  top: 0;
  z-index: var(--tobii-lightbox-z-index);


  &[aria-hidden='true'] {
    display: none;
  }

  & *,
  & *::before,
  & *::after {
    box-sizing: inherit;
  }
}


/**
 * Slider
 *
 */

.tobii__slider {
  bottom: 0;
  left: 0;
  position: absolute;
  right: 0;
  top: 3.125em;
  will-change: transform;

  &[aria-hidden='true'] {
    display: none;
  }

  @media screen and (prefers-reduced-motion: no-preference) {
    &--animate:not(&--is-dragging) {
      transition-duration: var(--tobii-transition-duration);
      transition-property: transform;
      transition-timing-function: var(--tobii-transition-timing-function);
    }
  }

  &--is-draggable [data-type] {
    cursor: grab;
  }

  &--is-dragging [data-type] {
    cursor: grabbing;
  }

  &--is-moving [data-type] {
    cursor: move;
  }
}

/**
 * Slide
 *
 */

.tobii__slide {
  align-items: center;
  display: flex;
  height: 100%;
  justify-content: center;
  width: 100%;

  & [data-type] {
    max-height: 100%;
    max-width: var(--tobii-slide-max-width);
    overflow: hidden;
    overscroll-behavior: contain;
  }

  & iframe,
  & video {
    display: block !important;
  }

  & figure {
    margin: 0;
    position: relative;


    & > img {
      display: block;
      height: auto;
      max-height: var(--tobii-slide-max-height);
      max-width: var(--tobii-slide-max-width);
      width: auto;
    }

    & > figcaption {
      background-color: var(--tobii-caption-background);
      bottom: 0;
      color: var(--tobii-caption-color);
      padding: 0.25em 0.5em;
      position: absolute;
      white-space: pre-wrap;
      width: 100%;
      font-size: 1.125em;
      transition: background-color 0.3s ease-in-out, color 0.3s ease-in-out;

      &.caption-hidden {
        color: transparent;
        background-color: transparent;

        & > button.caption-toggle {
          &::after {
            opacity: 0.6;
          }

          &:hover::after {
            opacity: 1;
          }
        }
      }

      & > button.caption-toggle {
        position: absolute;
        z-index: 2;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        margin: 0;
        padding: 0 3em 0 0;
        cursor: pointer;
        color: transparent;
        border: none;
        background: transparent;

        &::after {
          position: absolute;
          right: 0.25em;
          bottom: 0.25em;
          display: flex;
          align-items: center;
          justify-content: center;
          width: 1.75em;
          height: 1.75em;
          content: 'ⓘ';
          transition: opacity 0.3s ease-in-out;
          pointer-events: none;
          opacity: 0;
          color: var(--tobii-caption-color);
          border-radius: 50%;
          background-color: var(--tobii-caption-background);
          font-size: medium;
          font-weight: bold;
          line-height: 1;
        }
      }
    }
  }

  & [data-type='html'] {
    overflow-y: auto;

    & video {
      cursor: auto;
      max-height: var(--tobii-slide-max-height);
      max-width: var(--tobii-slide-max-width);
    }

    & audio {
      max-width: 100%;
    }
  }

  & [data-type='iframe'] {

    /* Fix iframe scrolling on iOS */
    -webkit-overflow-scrolling: touch;
    transform: translate(0, 0);


    & iframe {
      height: var(--tobii-slide-max-height);
      width: var(--tobii-slide-max-width);
    }
  }
}

/**
 * Buttons
 *
 */

.tobii__btn {
  appearance: none;
  background-color: var(--tobii-button-background);
  border: 1px solid transparent;
  color: var(--tobii-button-color);
  cursor: pointer;
  font: inherit;
  line-height: 1;
  margin: 0;
  opacity: 0.5;
  padding: 0;
  position: absolute;
  touch-action: manipulation;
  will-change: opacity;
  z-index: 1;

  &:hover {
    opacity: 1;
  }

  @media screen and (prefers-reduced-motion: no-preference) {
    transition-duration: var(--tobii-transition-duration);
    transition-property: opacity, transform;
    transition-timing-function: var(--tobii-transition-timing-function);
    will-change: opacity, transform;
  }


  & svg {
    fill: none;
    height: 3.75em;
    pointer-events: none;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1;
    stroke: currentColor;
    width: 3.75em;
  }

  &--previous,
  &--next {
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--tobii-button-navigation-background);
    border-radius: 5px;
  }

  &--previous {
    left: 1em;
  }

  &--next {
    right: 1em;
  }

  &--close {
    right: 0.25em;
    top: 0.25em;
    width: 2.5em;
    height: 2.5em;
    opacity: 0.75;

    & svg {
      transform: scale(1.4);
      width: 100%;
      height: 100%;
    }
  }

  &:disabled,
  &[aria-hidden='true'] {
    visibility: hidden;
    cursor: default;
  }
}

/**
 * Counter
 *
 */

.tobii__counter {
  background-color: var(--tobii-counter-background);
  color: var(--tobii-counter-color);
  font-size: 1.25em;
  left: 0.875em;
  line-height: 1;
  position: absolute;
  top: 0.875em;
  z-index: 1;
  opacity: 0.8;

  &[aria-hidden='true'] {
    display: none;
  }

  & p {
    display: inline;
  }
}

/**
 * Loader
 *
 */

.tobii__loader {
  display: inline-block;
  height: 6em;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 6em;


  &::before {
    animation: spin 1s infinite;
    border-radius: 100%;
    border: 2px solid #949ba3;
    border-top-color: var(--tobii-loader-color);
    bottom: 0;
    content: '';
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    z-index: 1;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.tobii__slide .tobii-html {
  background: #ffffff;
  padding: 10px 20px;
  max-width: 800px;
  font-size: 1.125em;
}

/**
 * Screen Reader
 *
 */

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