.timeline-section {
  padding: 4rem 1.5rem;
  background: #f7f9f8;
  overflow: hidden;
}

.timeline-section h2 {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2.2rem;
  color: #2f4f3a;
}

.timeline-wrapper {
  position: relative;
  max-width: 1200px;
  margin: auto;
}

.timeline-line {
  position: absolute;
  top: 90px;
  left: 0;
  height: 4px;
  width: 0;
  background: linear-gradient(90deg, #3aa17e, #5bbcd6);
  transition: width 1.5s ease;
}

.timeline {
  display: flex;
  gap: 3rem;
  overflow-x: auto;
  padding-bottom: 2rem;
  scroll-behavior: smooth;
}

.timeline-item {
  min-width: 220px;
  background: white;
  border-radius: 18px;
  padding: 1.5rem 1.2rem 2rem;
  text-align: center;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  transform: translateY(40px) scale(0.95);
  opacity: 0;
  transition: all 0.6s ease;
}

.timeline-item.show {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.icon {
  width: 70px;
  height: 70px;
  margin: -15px auto 0.8rem;
  background: #eaf3ef;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  transition: transform 0.4s ease, background 0.4s ease;
}

.timeline-item.show .icon {
  animation: bounce 0.6s ease;
  background: #cfe9dd;
}

.year {
  font-weight: bold;
  color: #3a7f65;
  font-size: 0.9rem;
}

.timeline-item h4 {
  margin: 0.6rem 0;
  color: #2f4f3a;
}

.timeline-item p {
  font-size: 0.9rem;
  color: #555;
}

/* Bounce animation */
@keyframes bounce {
  0% { transform: translateY(0); }
  40% { transform: translateY(-12px); }
  100% { transform: translateY(0); }
}

/* Responsive */
@media (max-width: 768px) {
  .timeline {
    gap: 1.5rem;
  }
}