/* assets/css/timeline.css
   Clean vertical timeline, matches site link color via --link-color (fallback used)
*/

:root {
  --link-color: #5a8f7b; /* fallback, will be overridden if your site sets the variable */
  --muted: #6b7280;
  --card-bg: #fafafa;
  --card-border: rgba(0,0,0,0.03);
}

/* Page / container */
.page-header .lead {
  color: var(--muted);
  margin-bottom: 1rem;
}

.timeline-container {
  max-width: 900px;
  margin: 2.5rem auto;
  padding: 1rem;
}

/* Vertical spine */
.timeline {
  position: relative;
  margin-left: 3rem;
  padding-left: 2rem;
  border-left: 4px solid var(--link-color);
}

/* Individual item */
.timeline-item {
  position: relative;
  margin-bottom: 2rem;
  padding-left: 1rem;
}

.timeline-marker {
  position: absolute;
  left: -3.625rem; /* aligns marker left of the spine */
  top: 0.5rem;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  border: 4px solid var(--link-color);
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

/* Body card */
.timeline-body {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 0.9rem 1rem;
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.03);
}

.timeline-year {
  display: block;
  font-weight: 700;
  color: var(--link-color);
  margin-bottom: 0.25rem;
}

.timeline-title {
  margin: 0 0 0.35rem 0;
  font-size: 1.05rem;
}

.timeline-description {
  margin: 0;
  line-height: 1.5;
  color: #374151;
}

.timeline-characters {
  margin-top: 0.5rem;
  color: #4b5563;
  font-style: italic;
  font-size: 0.95rem;
}

/* Type color accents (marker border and a thin left border on the card) */
.type-b { border-color: #1e88e5 !important; } /* Birth */
.type-f { border-color: #43a047 !important; } /* Family */
.type-h { border-color: #e53935 !important; } /* History */
.type-s { border-color: #8e24aa !important; } /* Society/Story */
.type-t { border-color: #fbc02d !important; } /* Technology/Other */

/* apply same accent to the card left edge for stronger visual cue */
.type-b + .timeline-body { box-shadow: none; border-left: 6px solid #1e88e5; }
.type-f + .timeline-body { box-shadow: none; border-left: 6px solid #43a047; }
.type-h + .timeline-body { box-shadow: none; border-left: 6px solid #e53935; }
.type-s + .timeline-body { box-shadow: none; border-left: 6px solid #8e24aa; }
.type-t + .timeline-body { box-shadow: none; border-left: 6px solid #fbc02d; }

/* Responsive */
@media (max-width: 700px) {
  .timeline {
    margin-left: 1rem;
    padding-left: 1rem;
    border-left-width: 3px;
  }
  .timeline-marker {
    left: -2.5rem;
  }
  .type-b + .timeline-body,
  .type-f + .timeline-body,
  .type-h + .timeline-body,
  .type-s + .timeline-body,
  .type-t + .timeline-body {
    border-left-width: 4px;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --card-bg: #1f2937;
    --card-border: rgba(255,255,255,0.04);
    --muted: #9CA3AF;
  }
  .timeline-body { color: #e6eef8; }
  .timeline-description { color: #cbd5e1; }
  .timeline-characters { color: #9aa7b2; }
}