/* Timeline container */
#timeline-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 20px;
}

/* Timeline event */
.timeline-event {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  transition: background 0.3s;
}

.timeline-event:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Year */
.timeline-year {
  font-weight: bold;
  min-width: 60px;
}

/* Info area */
.timeline-info h3 {
  margin: 0;
  font-size: 1.1em;
}

.timeline-info p.description {
  margin: 5px 0;
}

/* Expand button */
.expand-btn {
  display: inline-block;
  margin-left: 10px;
  cursor: pointer;
  font-weight: bold;
  animation: blink 1s step-start infinite;
}

/* Blinking underscore */
@keyframes blink {
  50% { opacity: 0; }
}