/* ── TIMELINE LINE DRAWING ANIMATION ── */
.about__timeline::before {
  animation: draw-line 1.2s ease-out forwards;
}

@keyframes draw-line {
  0% { clip-path: inset(0 0 100% 0); }
  100% { clip-path: inset(0 0 0 0); }
}

/* ── TIMELINE ITEM STAGGER ── */
.timeline__item.fade-up:nth-child(1) { transition-delay: 0s; }
.timeline__item.fade-up:nth-child(2) { transition-delay: 0.15s; }
.timeline__item.fade-up:nth-child(3) { transition-delay: 0.3s; }
.timeline__item.fade-up:nth-child(4) { transition-delay: 0.45s; }

/* ── TIMELINE MARKER POP-IN ── */
.timeline__item.fade-up .timeline__marker {
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
  transform: scale(0);
}

.timeline__item.fade-up.visible .timeline__marker {
  transform: scale(1);
  transition-delay: inherit;
}