:root {
  --line-thickness: 4px;
  --line-color: rgb(121, 34, 89);
  --label-gradient-color: rgb(219, 68, 51);
  --card-distance-to-line: 2.5rem;
}

.timeline-container {
  margin: 4rem 0;
}

.timeline {
  position: relative;
  display: grid;
  gap: 5rem;
}

ul ul {
  margin: 1.2rem 0;
}

.timeline-line {
  inline-size: var(--line-thickness);
  block-size: 100%;
  background-color: var(--line-color);
  position: absolute;
  inset-block-start: 0;
  inset-block-end: 0;
}

.timeline-section {
  display: grid;
  gap: 2.5rem;
}

.timeline-section-title {
  inline-size: fit-content;
  padding: 0.5rem 0.8rem;
  background: linear-gradient(
    90deg,
    var(--line-color) 0px,
    var(--label-gradient-color)
  );
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
}

.timeline-entries {
  display: grid;
  gap: 2.5rem;
  padding-inline-start: var(--card-distance-to-line);
}

.timeline-entry {
  position: relative;
  isolation: isolate;
}

.timeline-card-container {
  background-color: #fff;
}

/* Entry line */
.timeline-card-container::before {
  content: "";
  inline-size: 100%;
  block-size: var(--line-thickness);
  background-color: var(--line-color);
  position: absolute;
  inset-block-start: 2.3rem;
  inset-inline-start: calc(-1 * var(--card-distance-to-line));
  z-index: -1;
}

.timeline-card {
  display: grid;
  border-inline-start: var(--line-thickness) solid var(--line-color);
  border-radius: 2px;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.12), 0 1px 2px 0 rgba(0, 0, 0, 0.24);
  padding: 1.5rem 1.5rem 1.25rem;
}

.timeline-card-intro {
  display: grid;
  gap: 1rem;
}

.timeline-card-label {
  grid-row: 1 / 1;
  inline-size: fit-content;
  padding: 0.5rem 0.8rem 0.4rem;
  background-color: #f0f0f0;
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  color: #000;
}

.timeline-card-body {
  margin: 1rem;
}

.screen-reader-text {
  width: 1px;
  height: 1px;
  padding: 0;
  border: none;
  position: absolute;
  clip-path: rect(1px, 1px, 1px, 1px);
  overflow: hidden;
}