/* ============================================
   Timeline Component — Decade-by-Decade Journey
   ============================================ */

.timeline {
  position: relative;
  overflow: hidden;
}

.timeline__intro {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

/* Timeline Navigation */
.timeline__nav {
  display: flex;
  justify-content: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-3xl);
  overflow-x: auto;
  padding: var(--space-sm) 0;
  -webkit-overflow-scrolling: touch;
}

.timeline__nav-item {
  flex-shrink: 0;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-dark-text-light);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.timeline__nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-dark-text);
}

.timeline__nav-item--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* Decade Panels */
.timeline__panels {
  position: relative;
}

.timeline__panel {
  display: none;
  animation: fadeIn 0.5s ease;
}

.timeline__panel--active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.timeline__panel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 768px) {
  .timeline__panel-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.timeline__panel-image {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.timeline__panel-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.timeline__panel-content {
  padding: var(--space-lg) 0;
}

.timeline__decade-label {
  font-family: var(--font-heading);
  font-size: var(--text-6xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-sm);
  opacity: 0.3;
}

.timeline__panel-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-sm);
}

.timeline__panel-subtitle {
  font-size: var(--text-base);
  font-style: italic;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.timeline__panel-text {
  color: var(--color-dark-text-light);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.timeline__highlights {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.timeline__highlight-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-accent);
  border: 1px solid rgba(201, 168, 108, 0.3);
  border-radius: 100px;
}

/* Quote Block */
.timeline__quote {
  margin-top: var(--space-2xl);
  padding: var(--space-lg);
  border-left: 3px solid var(--color-primary);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.timeline__quote-text {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-dark-text);
  margin-bottom: var(--space-sm);
}

.timeline__quote-source {
  font-size: var(--text-sm);
  color: var(--color-dark-text-light);
}