/* Same-event timeline: hidden until JS validates and rebuilds the module. */
.article-related {
  display: none;
}

.topic-timeline.is-ready {
  display: block;
  margin: 22px 0 26px;
  padding: 18px 20px;
  border: 1px solid #e5e7eb;
  border-left: 4px solid #c81d25;
  border-radius: 12px;
  background: linear-gradient(180deg, #fff 0%, #fffaf8 100%);
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.05);
}

.topic-timeline__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.topic-timeline__header h2 {
  margin: 0;
  color: #172033;
  font-size: 20px;
  line-height: 1.3;
}

.topic-timeline__count {
  flex: 0 0 auto;
  color: #6b7280;
  font-size: 13px;
}

.topic-timeline__list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.topic-timeline__list::before {
  content: "";
  position: absolute;
  top: 12px;
  bottom: 12px;
  left: 7px;
  width: 2px;
  background: #e5e7eb;
}

.topic-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 12px;
  padding: 9px 0;
}

.topic-timeline__item[hidden] {
  display: none;
}

.topic-timeline__marker {
  position: relative;
  z-index: 1;
  width: 12px;
  height: 12px;
  margin-top: 5px;
  border: 3px solid #fff;
  border-radius: 50%;
  background: #94a3b8;
  box-shadow: 0 0 0 2px #cbd5e1;
}

.topic-timeline__item.is-current .topic-timeline__marker {
  background: #c81d25;
  box-shadow: 0 0 0 2px rgba(200, 29, 37, 0.24);
}

.topic-timeline__content {
  min-width: 0;
}

.topic-timeline__title,
.topic-timeline__title:visited {
  display: inline;
  color: #1f2937;
  font-size: 15px;
  font-weight: 650;
  line-height: 1.55;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.topic-timeline__title:hover {
  color: #c81d25;
  text-decoration: underline;
}

.topic-timeline__item.is-current .topic-timeline__title {
  color: #111827;
  font-weight: 750;
}

.topic-timeline__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 4px;
  color: #6b7280;
  font-size: 12px;
  line-height: 1.45;
}

.topic-timeline__badge {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #f1f5f9;
  color: #475569;
  font-weight: 650;
}

.topic-timeline__item.is-current .topic-timeline__badge {
  background: #fee2e2;
  color: #b91c1c;
}

.topic-timeline__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #eef2f7;
}

.topic-timeline__toggle,
.topic-timeline__more {
  border: 0;
  background: transparent;
  color: #c81d25;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
}

.topic-timeline__toggle:hover,
.topic-timeline__more:hover {
  text-decoration: underline;
}

.topic-timeline__toggle:focus-visible,
.topic-timeline__more:focus-visible,
.topic-timeline__title:focus-visible {
  outline: 2px solid rgba(200, 29, 37, 0.55);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (max-width: 600px) {
  .topic-timeline.is-ready {
    margin: 16px 0 20px;
    padding: 14px 14px 12px;
    border-radius: 10px;
  }

  .topic-timeline__header {
    margin-bottom: 8px;
  }

  .topic-timeline__header h2 {
    font-size: 18px;
  }

  .topic-timeline__item {
    gap: 10px;
    padding: 8px 0;
  }

  .topic-timeline__title,
  .topic-timeline__title:visited {
    font-size: 14px;
    line-height: 1.5;
  }

  .topic-timeline__actions {
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .topic-timeline * {
    scroll-behavior: auto !important;
  }
}