.timeline__container {
  position: relative;
  list-style-type: none;
}

.timeline__container::before {
  background-color: var(--clr-muted);
  content: "";
  margin-left: -1px;
  position: absolute;
  top: 0;
  left: 2em;
  width: 2px;
  height: 100%;
}

.timeline__event-icon {
  background-color: var(--clr-muted);
  outline: 10px solid var(--clr-dark);
  display: block;
  margin: 0.5em 0.5em 0.5em -0.5em;
  position: absolute;
  top: 0;
  left: 2em;
  width: 1em;
  height: 1em;
  transform: rotate(45deg);
  transition: transform 0.2s ease-in;
}

.timeline__event-thumbnail {
  font-size: var(--size-sm);
  background-color: var(--clr-dark);
  box-shadow: inset 0 0 0 0em #69798a;
  display: inline-block;
  margin-bottom: 1.2em;
  padding: 0.25em 1em 0.2em 1em;
  transition: box-shadow 0.5s ease-in 0.1s;
}

.timeline__event {
  position: relative;
}

.timeline__event:hover {
  .timeline__event-icon {
    transform: rotate(-45deg);
    background-color: var(--clr-neutral350);
  }

  .timeline__event-thumbnail {
    box-shadow: inset 40em 0 0 0 var(--clr-neutral350);
  }
}

.timeline__event-container {
  padding: 2em;
  position: relative;
  top: -1.875em;
  left: 4em;
  width: 80%;
}

.timeline__event-title {
  font-size: var(--size-xl);
}

.timeline__event-subtitle {
  font-family: var(--font-secondary);
  font-size: var(--size-base);
  color: var(--clr-neutral1000);
  margin-bottom: 1rem;
}

.timeline__event-description {
  font-family: var(--font-secondary);
  font-size: var(--size-sm);
  color: var(--clr-muted);
  padding-bottom: 1rem;
}

/* xs */
/* @media (min-width: 475px) {} */

/* sm */
@media (min-width: 640px) {
  .timeline__event-description {
    padding-bottom: 0.75rem;
  }
}

/* md */
@media (min-width: 768px) {
  .timeline__event-thumbnail {
    font-size: var(--size-lg);
  }
  .timeline__event-title {
    font-size: var(--size-2xl);
  }

  .timeline__event-subtitle {
    font-size: var(--size-lg);
  }

  .timeline__event-description {
    font-size: var(--size-base);
  }
}

/* lg */
/* @media (min-width: 1024px) {} */

/* xl */
@media (min-width: 1280px) {
  .timeline__container {
    max-width: 768px;
    margin-inline: auto;
  }
}

/* 2xl */
/* @media (min-width: 1536px) {} */