/* Timeline page */
.jump-section {
  padding: 2rem 0;
}

.jump-card {
  background: var(--nbn-light-blue);
  border: 1px solid #CFE0F5;
  padding: 1.5rem;
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-content: space-between;
}

.jump-intro h2 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
}

.jump-intro p {
  margin-bottom: 0;
  color: #405168;
}

.jump-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.jump-links a {
  display: inline-block;
  background: var(--nbn-white);
  border: 1px solid var(--nbn-border);
  color: var(--nbn-navy);
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  font-weight: 700;
  font-size: 0.9rem;
}

.jump-links a:hover,
.jump-links a:focus {
  background: var(--nbn-navy);
  color: var(--nbn-white);
  text-decoration: none;
}

.timeline-wrapper {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
}

.timeline-wrapper::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 220px;
  width: 2px;
  background: var(--nbn-border);
}

.timeline-item {
  display: grid;
  grid-template-columns: 170px 70px 1fr;
  gap: 1.5rem;
  position: relative;
  margin-bottom: 2.5rem;
}

.timeline-date {
  padding-top: 0.5rem;
}

.timeline-year {
  display: block;
  font-size: 1.35rem;
  font-weight: 850;
  color: var(--nbn-navy);
  letter-spacing: -0.03em;
}

.timeline-period {
  display: block;
  color: var(--nbn-muted);
  font-weight: 700;
  font-size: 0.95rem;
}

.timeline-marker {
  z-index: 2;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--nbn-blue);
  color: var(--nbn-white);
  box-shadow: 0 0 0 8px var(--nbn-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.45rem;
}

.timeline-card {
  padding: 1.6rem;
  box-shadow: var(--nbn-shadow-md);
}

.timeline-card.featured {
  border: 2px solid var(--nbn-link);
  background: linear-gradient(135deg, #FFFFFF, #F8FBFF);
}

.timeline-card-header {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.timeline-card h2 {
  font-size: 1.45rem;
  font-weight: 850;
  margin-bottom: 0;
  letter-spacing: -0.03em;
}

.timeline-card ul {
  margin-bottom: 0;
}

.timeline-card li {
  margin-bottom: 0.45rem;
}

.timeline-action {
  margin-top: 1.25rem;
}

@media (max-width: 991.98px) {
  .jump-card {
    display: block;
  }

  .jump-links {
    margin-top: 1rem;
  }

  .timeline-wrapper::before {
    left: 28px;
  }

  .timeline-item {
    grid-template-columns: 58px 1fr;
    gap: 1rem;
  }

  .timeline-date {
    grid-column: 2;
    grid-row: 1;
    padding-top: 0;
  }

  .timeline-marker {
    grid-column: 1;
    grid-row: 1 / span 2;
  }

  .timeline-card {
    grid-column: 2;
  }
}

@media (max-width: 575.98px) {
  .timeline-card-header {
    display: block;
  }

  .timeline-tag {
    margin-top: 0.75rem;
  }
}