/* About */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.timeline {
  position: relative;
  margin-top: 2rem;
  padding-left: 1.75rem;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0.65rem;
  width: 2px;
  background: linear-gradient(180deg, rgba(156, 103, 255, 0.7), rgba(255, 213, 128, 0.3));
}

.timeline-item {
  position: relative;
  margin-bottom: 1.75rem;
  padding: 1.5rem;
  border-radius: 20px;
  background: rgba(15, 28, 45, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 15px 35px rgba(9, 15, 28, 0.35);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.timeline-item::before {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--secondary-color);
  border: 3px solid rgba(255, 255, 255, 0.35);
  left: -1.7rem;
  top: 4rem;
}

.timeline-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.skill-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.skill-badges span {
  padding: 0.5rem 0.9rem;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.85rem;
}