/* ── Timeline block ── vertical year-first list; token-only. */
.block-timeline {
  background: var(--color-surface);
  padding: clamp(80px, 11vh, 120px) var(--space-section-x);
}

.block-timeline .tl-header { max-width: 760px; margin-bottom: 56px; }
.block-timeline .tl-intro {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.2vw, 17px);
  line-height: 1.7;
  color: var(--color-fg-muted);
  margin-top: 20px;
}

.block-timeline .tl-list {
  list-style: none;
  max-width: 900px;
  margin: 0;
  padding: 0;
  position: relative;
}
/* Vertical hairline running down the year column. */
.block-timeline .tl-list::before {
  content: '';
  position: absolute;
  top: 8px; bottom: 8px;
  left: 110px;
  width: 1px;
  background: var(--color-border-soft);
}

.block-timeline .tl-entry {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 48px;
  padding: 28px 0;
  position: relative;
}
.block-timeline .tl-entry:not(:last-child) {
  border-bottom: 1px solid var(--color-border);
}
/* Dot on the rule, aligned to the year row. */
.block-timeline .tl-entry::before {
  content: '';
  position: absolute;
  left: 105px; top: 38px;
  width: 9px; height: 9px;
  background: var(--color-accent);
  border-radius: 50%;
  z-index: 1;
}

.block-timeline .tl-year {
  font-family: var(--font-eyebrow);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding-top: 4px;
}

.block-timeline .tl-headline {
  font-family: var(--font-display);
  font-size: clamp(20px, 1.8vw, 26px);
  font-weight: 400;
  line-height: 1.25;
  color: var(--color-fg);
  margin-bottom: 8px;
}
.block-timeline .tl-headline em {
  color: var(--color-accent);
  font-style: italic;
}
.block-timeline .tl-body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-fg-muted);
}

@media (max-width: 700px) {
  .block-timeline { padding: 56px 20px; }
  .block-timeline .tl-list::before { left: 0; }
  .block-timeline .tl-entry {
    grid-template-columns: 1fr;
    gap: 8px;
    padding-left: 24px;
  }
  .block-timeline .tl-entry::before { left: -4px; top: 36px; }
}