.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-primary), var(--accent-secondary));
  border-radius: 1px;
}

.timeline-item {
  position: relative;
  margin-bottom: 48px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -46px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-gradient);
  box-shadow: 0 0 15px var(--glow-primary);
}

.timeline-date {
  display: inline-block;
  background: var(--accent-gradient);
  color: white;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.timeline-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all var(--transition-base);
}

.timeline-card:hover {
  border-color: var(--border-color);
  box-shadow: var(--shadow-glow);
  transform: translateX(5px);
}

.timeline-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 4px;
}

.timeline-card h4 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent-primary);
  margin-bottom: 16px;
}

.timeline-card ul li {
  position: relative;
  padding-left: 20px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.timeline-card ul li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
}

@media (max-width: 768px) {
  .timeline { padding-left: 30px; }
  .timeline-item::before { left: -36px; width: 12px; height: 12px; }
}