.home {
  display: grid;
  gap: 44px;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 200px;
  gap: 44px;
  align-items: start;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.intro h2,
.timeline-section h2 {
  margin: 0;
  color: var(--text);
  font-size: 1.7rem;
  font-weight: 650;
  line-height: 1.25;
}

.intro-copy {
  max-width: 640px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.intro-image {
  width: 100%;
  max-width: 200px;
  margin-top: 28px;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--line);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  padding-top: 4px;
}

.summary-grid h3,
.timeline h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.summary-grid p,
.timeline p {
  margin: 0;
  color: var(--muted);
}

.timeline {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.timeline li {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 22px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.timeline-chapter {
  color: var(--muted);
}

.timeline-entry {
  min-width: 0;
}

.timeline-entry summary {
  display: flex;
  gap: 16px;
  align-items: baseline;
  justify-content: space-between;
  cursor: pointer;
  list-style: none;
}

.timeline-entry summary::-webkit-details-marker {
  display: none;
}

.timeline-entry summary:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 4px;
}

.timeline-entry h3 {
  flex: 1;
  margin: 0;
}

.timeline-marker::before {
  content: "+";
  display: inline-block;
  width: 1ch;
  color: var(--link);
}

.timeline-entry[open] .timeline-marker::before {
  content: "-";
}

.timeline-entry p {
  max-width: 720px;
  margin-top: 12px;
}

.timeline time {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

@media (max-width: 720px) {
  .intro {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .intro-image {
    max-width: 180px;
    margin-top: 0;
  }

  .summary-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .timeline li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .timeline-entry summary {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px 10px;
  }

  .timeline-entry time {
    grid-column: 2;
  }
}