/* General */

body .tl {
  font-size: 0.875rem;
  list-style: none;
  margin: 0;
  position: relative;
}

/* marker and tl track */

.tl__marker {
  background-color: rgb(var(--color-primary));
  height: 29px;
  margin: 0 0 -29px -2px;
  position: sticky;
  top: 50%;
  width: 4px;
}

.tl::before {
  content: '';
  width: 1px;
  background-color: rgb(var(--color-foreground), 0.2);
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
}

/* timeline event */

.tl-event {
  background: var(--theme-card-background);
  border-radius: var(--card-radius);
  color: var(--theme-card-foreground);
  list-style-type: none;
  margin: 0 0 var(--site-gutter, 20px) var(--site-gutter, 20px);
  padding: var(--card-padding-sm);
  position: relative;
}

/* timeline event: marker */

.tl-event__marker {
  background: rgb(var(--color-background-alt, 255, 255, 255));
  border: 1px solid rgb(var(--color-foreground), 0.4);
  border-radius: 50%;
  box-shadow: 0 0 0 0.3rem rgb(var(--color-background));
  display: block;
  height: 1rem;
  left: calc((var(--site-gutter) + 0.5rem) * -1);
  position: absolute;
  top: var(--card-padding-sm);
  transition: background 0.2s ease-in-out;
  width: 1rem;
}

html:not(.hs-inline-edit) .tl-event__marker--active {
  background: rgb(var(--color-primary));
}

/* timeline event: background image */

.tl-event__bg-img {
  margin-bottom: 1rem;
}

/* timeline event: content */

.tl-event__content {
  display: grid;
  gap: 1rem;
  position: relative;
}

.tl-event__year {
  font-size: 1.3em;
  line-height: 1;
  order: -1;
}

.tl-event__title {
  font-weight: 600;
  font-size: 1.1em;
  margin-top: 0;
  margin-bottom: 0;
  text-transform: none;
}

.tl-event__description {
  font-size: 0.9em;
  margin-top: 1em;
}

.tl-event__description p:last-child {
  margin-bottom: 0;
}

.tl-event__thumbnail {
  width: 100%;
}

/* 2 column breakpoint */

@media (min-width: 768px) {
  .tl:before {
    left: 50%;
    transform: translateX(-50%);
  }

  .tl__marker {
    margin: 0 auto 2em;
  }

  body .tl {
    margin: 0 0 0 0;
  }

  .tl-event {
    background: transparent;
    border-radius: 0;
    color: inherit;
    margin: 0;
    padding: 3em 1px;
    position: relative;
    width: 100%;
  }

  .tl-event--bg-image {
    padding: 6em var(--site-gutter);
  }

  .tl-event__bg-img {
    bottom: 0;
    display: block;
    left: 0;
    height: 100%;
    margin-bottom: 0;
    object-fit: cover;
    position: absolute;
    right: 0;
    top: 0;
    width: 100%;
  }

  .tl-event--default .tl-event__content {
    align-items: center;
    grid-template-columns: 1fr 1fr;
    gap: 0 6rem;
  }

  .tl-event--bg-image .tl-event__content {
    background: rgb(var(--color-background));
    color: rgb(var(--color-foreground));
    max-width: 580px;
    padding: var(--card-padding, 2rem);
  }

  .tl-event--pull-right .tl-event__content {
    margin-left: auto;
  }
  
  .tl-event--default::before,
  .tl-event__marker {
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }

  .tl-event--bg-image .tl-event__marker {
    display: none;
  }

  /* default year */

  .tl-event--default .tl-event__year {
    font-size: 3em;
    margin-bottom: 0;
    order: 0;
    text-align: right;
  }

  .tl-event--default .tl-event__thumbnail ~ .tl-event__year {
    align-self: end;
  }

  .tl-event--default:nth-child(2n) .tl-event__year {
    text-align: left;
  }

  /* default copy */
  
  .tl-event--default .tl-event__copy {
    max-width: 500px;
  }

  .tl-event--default .tl-event__thumbnail ~ .tl-event__copy {
    align-self: start;
    justify-self: end;
    margin-top: 1rem;
    text-align: right;
  }

  .tl-event--default:nth-child(2n) .tl-event__copy {
    justify-self: end;
    order: -1;
    text-align: right;
  }

  .tl-event--default:nth-child(2n) .tl-event__thumbnail ~ .tl-event__copy {
    justify-self: start;
    order: 3;
    text-align: left;
  }

  /* default thumbnail */

  .tl-event--default .tl-event__thumbnail {
    grid-column: 2;
    grid-row: 1 / 3;
  }

  .tl-event--default:nth-child(2n) .tl-event__thumbnail {
    grid-column: 1;
  }
}

/* animations */

.js .tl-event[data-mh-animation] {
  will-change: auto!important;
}

.js .tl-event[data-mh-animation] .tl-event__bg-img,
.js .tl-event[data-mh-animation] .tl-event__year,
.js .tl-event[data-mh-animation] .tl-event__copy,
.js .tl-event[data-mh-animation] .tl-event__thumbnail {
  opacity: 0;
  will-change: opacity, transform;
}

.tl-event.animated .tl-event__bg-img,
.tl-event.animated .tl-event__year,
.tl-event.animated .tl-event__copy,
.tl-event.animated .tl-event__thumbnail {
  animation: var(--animation-name) 1s cubic-bezier(0.46, 0.52, 0.09, 1.01) forwards;
  animation-delay: var(--animation-stagger, 0s);
}