/* ── Prime Ministers — full horizontal timeline (one column per PM) ─────────
   Latest → earliest. Forces N columns side-by-side with horizontal scroll
   instead of the auto-fit grid used by other chronicles. */

.feature.prime-ministers .feature-head .eyebrow { color: var(--chakra); }
.feature.prime-ministers .node-root {
  background: linear-gradient(180deg, color-mix(in srgb, var(--chakra) 12%, var(--card)), var(--card));
}
.feature.prime-ministers .node-root::before {
  background: linear-gradient(90deg, var(--kesari), var(--chakra), var(--harit));
}
.feature.prime-ministers .branch-head .b-emoji {
  border-color: color-mix(in srgb, var(--chakra) 40%, var(--line-strong));
  background: color-mix(in srgb, var(--chakra) 8%, var(--parchment-2));
}
.feature.prime-ministers .branch-head .b-thumb {
  width:56px; height:56px; border-radius:14px;
  border-color: color-mix(in srgb, var(--chakra) 35%, var(--line-strong));
  box-shadow: 0 2px 8px rgba(0,0,128,.12);
}

.feature.prime-ministers .scroll-hint {
  margin-top: .85rem; font: 600 .82rem/1.3 var(--font-body);
  color: var(--ink-faint); letter-spacing: .02em;
}

/* Allow the page body to keep overflow hidden, but give the tree a wide scroller */
.feature.prime-ministers .tree {
  /* break out of .wrap slightly so the scroll track feels full-width */
  width: 100%;
  max-width: none;
  padding-bottom: 2.5rem;
}

.feature.prime-ministers .tree-root {
  position: sticky;
  left: 0;
  z-index: 2;
}

/* THE horizontal timeline: one flex row, no wrap, N equal columns */
.feature.prime-ministers .branches {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-start;
  gap: 1rem;
  overflow-x: auto;
  overflow-y: visible;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: 1rem;
  padding: .4rem .25rem 1.2rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--chakra) var(--parchment-2);
}
.feature.prime-ministers .branches::-webkit-scrollbar { height: 10px; }
.feature.prime-ministers .branches::-webkit-scrollbar-track {
  background: var(--parchment-2); border-radius: 999px;
}
.feature.prime-ministers .branches::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--chakra) 55%, var(--kesari));
  border-radius: 999px;
}

.feature.prime-ministers .branch {
  flex: 0 0 min(300px, 82vw);
  width: min(300px, 82vw);
  max-width: 300px;
  scroll-snap-align: start;
  min-height: 12rem;
  border-top: 3px solid var(--chakra);
  background: var(--card);
}

/* ordinal ribbon on each PM column */
.feature.prime-ministers .branch-head {
  flex-wrap: wrap;
  position: relative;
  padding-top: .7rem;
}
.feature.prime-ministers .branch-head h3 {
  font-size: 1.02rem;
}
.feature.prime-ministers .branch-head .b-period {
  color: var(--chakra);
  font-size: .7rem;
}

/* denser cards under each PM */
.feature.prime-ministers .leaf { margin: .45rem 0; }
.feature.prime-ministers .node-card .nc-summary {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* sources block still full width below the scroller */
.feature.prime-ministers .sources-block {
  margin-top: 1.5rem;
}

@media (min-width: 900px) {
  .feature.prime-ministers .branch {
    flex-basis: 280px;
    width: 280px;
    max-width: 280px;
  }
}