/* Development timeline: connected milestones with strong interactive feedback. */
.about-v14-history { padding-bottom: 144px; }

.about-v14-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3.5vw, 54px);
  margin-top: 76px;
  padding-top: 0;
}

.about-v14-timeline-rail {
  position: absolute;
  z-index: 0;
  top: 118px;
  right: 7%;
  left: 7%;
  height: 2px;
  background: linear-gradient(90deg, #1476e8 0%, #67ace4 52%, #b9d9ef 100%);
}

.about-v14-timeline article {
  position: relative;
  z-index: 1;
  min-width: 0;
  padding: 24px 25px 28px;
  border-radius: 4px;
  background: transparent;
  transition: background-color .3s ease, box-shadow .3s ease, transform .3s ease;
}

.about-v14-year { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; min-height: 70px; }

.about-v14-year strong {
  color: #bddcf2;
  font-size: clamp(52px, 5.3vw, 76px);
  font-weight: 800;
  line-height: .88;
  letter-spacing: -.055em;
  transition: color .3s ease, transform .3s ease;
}

.about-v14-year span {
  margin-bottom: 4px;
  color: #5685ab;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
}

.about-v14-node {
  position: relative;
  display: block;
  width: 18px;
  height: 18px;
  margin: 34px 0 0 8px;
  border: 5px solid #fff;
  border-radius: 50%;
  background: #7eb8e7;
  box-shadow: 0 0 0 2px #7eb8e7;
  transition: background-color .3s ease, box-shadow .3s ease, transform .3s ease;
}

.about-v14-timeline article:first-of-type .about-v14-node { background: #1476e8; box-shadow: 0 0 0 2px #1476e8, 0 0 0 8px rgb(20 118 232 / 12%); }

.about-v14-copy { margin-top: 32px; padding-left: 8px; }
.about-v14-copy h3 { margin: 0; color: #203e5b; font-size: 21px; font-weight: 800; letter-spacing: -.02em; transition: color .3s ease; }
.about-v14-copy p { min-height: 52px; max-width: 285px; margin: 13px 0 0; color: #6d849b; font-size: 14px; line-height: 1.82; transition: color .3s ease; }
.about-v14-copy > div { display: flex; flex-wrap: wrap; gap: 9px 20px; margin-top: 24px; }
.about-v14-copy > div span { position: relative; color: #5685ab; font-size: 12px; font-weight: 700; }
.about-v14-copy > div span + span::before { position: absolute; top: 50%; left: -11px; width: 3px; height: 3px; content: ""; border-radius: 50%; background: #8dbde4; transform: translateY(-50%); }

.about-v14-timeline article:hover {
  background: #edf7fe;
  box-shadow: 0 18px 38px rgb(26 93 151 / 14%);
  transform: translateY(-10px);
}

.about-v14-timeline article:hover .about-v14-year strong { color: #1476e8; transform: translateY(-3px); }
.about-v14-timeline article:hover .about-v14-node { background: #1476e8; box-shadow: 0 0 0 2px #1476e8, 0 0 0 10px rgb(20 118 232 / 14%); transform: scale(1.12); }
.about-v14-timeline article:hover .about-v14-copy h3 { color: #1476e8; }
.about-v14-timeline article:hover .about-v14-copy p { color: #547592; }

@media (max-width: 900px) {
  .about-v14-timeline { gap: 18px; margin-top: 58px; }
  .about-v14-timeline-rail { top: 105px; }
  .about-v14-timeline article { padding-right: 18px; padding-left: 18px; }
  .about-v14-year strong { font-size: 54px; }
  .about-v14-node { margin-top: 31px; }
  .about-v14-copy { margin-top: 28px; }
  .about-v14-copy p { min-height: 76px; }
}

@media (max-width: 620px) {
  .about-v14-history { padding-bottom: 88px; }
  .about-v14-timeline { grid-template-columns: 1fr; gap: 18px; margin-top: 44px; padding-left: 28px; }
  .about-v14-timeline-rail { top: 28px; right: auto; bottom: 28px; left: 8px; width: 2px; height: auto; }
  .about-v14-timeline article { padding: 22px 20px 24px; background: #f7fbfe; }
  .about-v14-year { min-height: 0; }
  .about-v14-year strong { font-size: 43px; }
  .about-v14-node { position: absolute; top: 29px; left: -28px; width: 16px; height: 16px; margin: 0; border-width: 4px; }
  .about-v14-copy { margin-top: 25px; padding-left: 0; }
  .about-v14-copy h3 { font-size: 19px; }
  .about-v14-copy p { min-height: 0; max-width: none; font-size: 13px; }
  .about-v14-copy > div { margin-top: 17px; }
  .about-v14-timeline article:hover { transform: translateX(4px); }
}

@media (prefers-reduced-motion: reduce) {
  .about-v14-timeline article, .about-v14-year strong, .about-v14-node, .about-v14-copy h3, .about-v14-copy p { transition: none; }
}