/* Timeline Page Specific Styles */

/* Timeline Intro Section */
.timeline-intro {
  padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.timeline-nav {
  display: flex;
  justify-content: center;
  margin-top: var(--spacing-lg);
  gap: var(--spacing-sm);
}

.timeline-nav-btn {
  padding: 0.5rem 1.25rem;
  background-color: var(--color-cream-dark);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-quick);
}

.timeline-nav-btn:hover {
  background-color: var(--color-sepia-light);
}

.timeline-nav-btn.active {
  background-color: var(--color-navy);
  color: var(--color-white);
}

/* Timeline Section */
.timeline-container {
  position: relative;
  padding: var(--spacing-xl) 0;
  max-width: 1000px;
  margin: 0 auto;
}

.timeline-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background-color: var(--color-sepia);
  transform: translateX(-50%);
}

.timeline-events {
  position: relative;
}

.timeline-event {
  margin-bottom: var(--spacing-xl);
  position: relative;
  opacity: 1;
  transition: opacity var(--transition-medium);
}

.timeline-event.hidden {
  display: none;
  opacity: 0;
}

.timeline-date {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-family: var(--font-serif);
  z-index: 2;
}

.timeline-content {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  max-width: calc(50% - 30px);
  margin-top: var(--spacing-lg);
  position: relative;
}

.timeline-content::after {
  content: '';
  position: absolute;
  top: 20px;
  width: 20px;
  height: 20px;
  background-color: var(--color-white);
  transform: rotate(45deg);
}

.timeline-event:nth-child(odd) .timeline-content {
  margin-left: auto;
}

.timeline-event:nth-child(odd) .timeline-content::after {
  left: -10px;
}

.timeline-event:nth-child(even) .timeline-content::after {
  right: -10px;
}

.timeline-content h3 {
  color: var(--color-navy);
  margin-bottom: var(--spacing-md);
}

.timeline-media {
  margin-top: var(--spacing-md);
}

.timeline-media img {
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.timeline-media figcaption {
  font-size: 0.875rem;
  color: var(--color-gray-dark);
  margin-top: var(--spacing-sm);
  font-style: italic;
}

/* Responsive Timeline */
@media (max-width: 992px) {
  .timeline-line {
    left: 30px;
  }
  
  .timeline-date {
    left: 30px;
    transform: none;
    white-space: nowrap;
  }
  
  .timeline-content {
    max-width: calc(100% - 80px);
    margin-left: 80px !important;
  }
  
  .timeline-event:nth-child(odd) .timeline-content::after,
  .timeline-event:nth-child(even) .timeline-content::after {
    left: -10px;
    right: auto;
  }
}

@media (max-width: 576px) {
  .timeline-nav {
    flex-wrap: wrap;
  }
  
  .timeline-nav-btn {
    flex: 1 0 calc(50% - var(--spacing-sm));
    margin-bottom: var(--spacing-sm);
  }
  
  .timeline-content {
    padding: var(--spacing-md);
  }
  
  .timeline-date {
    font-size: 0.875rem;
    padding: 0.25rem 0.75rem;
  }
}