/* ============================================================
   CAMPAIGN TIMELINE — timeline.css
============================================================ */

/* Container */
.hbc-timeline {
  position: relative;
  padding: 2rem 0;
  margin: 0 auto;
  max-width: 900px;
}

/* Central spine */
.hbc-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  background: linear-gradient(
    to bottom,
    transparent,
    var(--border-color) 5%,
    var(--border-color) 95%,
    transparent
  );
}

/* ── Individual item ── */
.hbc-timeline__item {
  position: relative;
  width: calc(50% - 2.5rem);
  margin-bottom: 2.5rem;
}

.hbc-timeline__item--left  { margin-left: 0; margin-right: auto; }
.hbc-timeline__item--right { margin-left: auto; margin-right: 0; }

/* ── Node (the circle on the spine) ── */
.hbc-timeline__node {
  position: absolute;
  top: 1.1rem;
  width: 2.4rem;
  height: 2.4rem;
  background: var(--parchment-light);
  border: 2px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  box-shadow: 0 0 0 4px var(--parchment-light), 0 2px 8px rgba(0,0,0,0.25);
}

.hbc-timeline__item--left  .hbc-timeline__node { right: -3.7rem; }
.hbc-timeline__item--right .hbc-timeline__node { left:  -3.7rem; }

.hbc-timeline__icon {
  font-size: 0.9rem;
  line-height: 1;
}

/* ── Connector line from card to node ── */
.hbc-timeline__item::after {
  content: '';
  position: absolute;
  top: 2rem;
  width: 1.3rem;
  height: 1px;
  background: var(--border-color);
}

.hbc-timeline__item--left::after  { right: -1.3rem; }
.hbc-timeline__item--right::after { left:  -1.3rem; }

/* ── Card ── */
.hbc-timeline__card {
  background-color: var(--parchment-light);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='400' height='400' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  border: 1px solid var(--border-color);
  padding: 1rem 1.25rem;
  box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
  position: relative;
  transition: box-shadow 0.2s ease;
}

/* Top accent line — colour varies by type */
.hbc-timeline__card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
}

.evt-type--combat    .hbc-timeline__card::before { background: var(--crimson); }
.evt-type--discovery .hbc-timeline__card::before { background: var(--gold); }
.evt-type--travel    .hbc-timeline__card::before { background: var(--forest); }
.evt-type--npc       .hbc-timeline__card::before { background: var(--gold); }
.evt-type--lore      .hbc-timeline__card::before { background: var(--forest-light); }
.evt-type--milestone .hbc-timeline__card::before { background: linear-gradient(to right, var(--gold), var(--parchment-deep), var(--gold)); }
.evt-type--event     .hbc-timeline__card::before { background: var(--border-color); }

.hbc-timeline__card--expandable {
  cursor: pointer;
  outline: none;
}

.hbc-timeline__card--expandable:hover,
.hbc-timeline__card--expandable:focus {
  box-shadow: 3px 3px 16px rgba(0,0,0,0.3);
  border-color: var(--parchment-deep);
}

/* ── Card header ── */
.hbc-timeline__card-header {
  position: relative;
  padding-right: 1.5rem;
}

.hbc-timeline__dates {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
  margin-bottom: 0.3rem;
}

.hbc-timeline__ig-date {
  font-family: var(--font-smallcaps);
  font-size: 0.72rem;
  color: var(--gold);
  letter-spacing: 0.06em;
}

.hbc-timeline__session {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faded);
  background: rgba(200,146,10,0.1);
  border: 1px solid var(--parchment-deep);
  padding: 0.1em 0.5em;
}

.hbc-timeline__title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-dark);
  margin: 0;
  line-height: 1.3;
}

/* Toggle chevron */
.hbc-timeline__toggle-icon {
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  font-size: 0.6rem;
  color: var(--ink-muted);
  transition: transform 0.25s ease;
}

.hbc-timeline__card[aria-expanded="true"] .hbc-timeline__toggle-icon {
  transform: translateY(-50%) rotate(180deg);
}

/* ── Expandable details ── */
.hbc-timeline__details {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px dotted var(--border-color);
  animation: hbc-slide-down 0.2s ease;
}

.hbc-timeline__details[hidden] { display: none; }

@keyframes hbc-slide-down {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hbc-timeline__desc {
  font-size: 0.88rem;
  color: var(--ink-mid);
  font-style: italic;
  margin: 0 0 0.6rem;
  line-height: 1.6;
}

.hbc-timeline__link {
  font-size: 0.72rem;
  margin-top: 0.4rem;
  display: inline-block;
}

/* ── Milestone special style ── */
.evt-type--milestone .hbc-timeline__card {
  background-color: #fdf6e3;
  border-color: var(--gold);
}

.evt-type--milestone .hbc-timeline__title {
  color: var(--ink-black);
  font-size: 1.05rem;
}

.evt-type--milestone .hbc-timeline__node {
  border-color: var(--gold);
  background: var(--parchment);
  box-shadow: 0 0 0 4px var(--parchment-light), 0 0 12px rgba(200,146,10,0.4);
}

/* ── Empty state ── */
.timeline-empty {
  text-align: center;
  padding: 3rem;
  color: var(--ink-faded);
}

/* ── RESPONSIVE ── */
@media (max-width: 680px) {
  .hbc-timeline::before {
    left: 1.2rem;
  }

  .hbc-timeline__item {
    width: calc(100% - 3.5rem);
    margin-left: 3.5rem !important;
    margin-right: 0 !important;
  }

  .hbc-timeline__node {
    left: -3.2rem !important;
    right: auto !important;
  }

  .hbc-timeline__item::after {
    left: -1rem !important;
    right: auto !important;
    width: 1rem;
  }
}