:root {
  --bg: #fdfdfc;
  --fg: #1a1a1a;
  --muted: #666;
  --accent: #6b3f1f;
  --border: #ddd;
  --code-bg: #f4f1ea;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.55;
}

.site-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: .75rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.brand { font-weight: 700; color: var(--accent); text-decoration: none; }
.site-header nav { display: flex; gap: 1rem; flex: 1; }
.site-header nav a { color: var(--fg); text-decoration: none; }
.site-header nav a:hover { color: var(--accent); }
.lang-switch select { padding: .2rem .4rem; }

main { padding: 1.5rem 2rem; max-width: 1200px; margin: 0 auto; }

.home-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1.5rem;
}
@media (max-width: 900px) { .home-split { grid-template-columns: 1fr; } }

.pane { background: #fff; border: 1px solid var(--border); padding: 1rem; border-radius: 6px; }
.pane-tree #tree { min-height: 480px; overflow: auto; }

code { background: var(--code-bg); padding: 1px 4px; border-radius: 3px; font-size: .92em; }
table { border-collapse: collapse; width: 100%; margin: .5rem 0 1rem; }
th, td { text-align: left; padding: .35rem .6rem; border-bottom: 1px solid var(--border); }

.muted { color: var(--muted); }
.lineage header h1 { margin-bottom: .25rem; }
.lineage-summary dl { display: grid; grid-template-columns: max-content 1fr; gap: .25rem 1rem; }

.feedback { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.feedback form { display: grid; gap: .5rem; max-width: 520px; }
.feedback label { display: grid; gap: .25rem; }
.feedback input, .feedback textarea { padding: .4rem; border: 1px solid var(--border); border-radius: 4px; }
.feedback button { padding: .45rem .9rem; background: var(--accent); color: #fff; border: 0; border-radius: 4px; cursor: pointer; }

.site-footer { padding: 1.5rem; text-align: center; color: var(--muted); border-top: 1px solid var(--border); margin-top: 3rem; }

/* D3 tree */
.node circle { fill: #fff; stroke: var(--accent); stroke-width: 2px; cursor: pointer; }
.node text { font-size: 12px; }
.link { fill: none; stroke: #999; stroke-width: 1.2px; }

/* Lineage page sections */
.lineage > section {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0 0.5rem;
  margin-top: 1.5rem;
}
.lineage > section:first-of-type { border-top: 0; margin-top: 0; padding-top: 0; }
.lineage h2 { font-size: 1.25rem; color: var(--accent); margin: 0 0 .75rem; }
.lineage h3 { font-size: 1.05rem; color: var(--fg); margin: 1rem 0 .5rem; }
.lineage-head { margin-bottom: 1.5rem; }
.lineage-head .lin-name { font-weight: 400; color: var(--muted); font-size: .85em; }

dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: .25rem 1rem; margin: .5rem 0; }
dl.kv dt { font-weight: 600; color: var(--muted); }

.badge { display: inline-block; padding: .15rem .5rem; border-radius: 999px; font-size: .75rem; }
.badge-draft { background: #ffe5b4; color: #7a4500; }
.badge-published { background: #c8e6c9; color: #1b5e20; }

details summary { cursor: pointer; color: var(--accent); padding: .25rem 0; }
.marker-list { columns: 2; column-gap: 2rem; font-size: .9em; }
.lineage-prose pre { background: var(--code-bg); padding: .75rem; overflow-x: auto; border-radius: 4px; }
.lineage-prose table { font-size: .92em; }

/* --- Yersinia atlas additions --- */
:root {
  --accent: #7a1f2b;          /* plague red, desaturated for long reading */
  --accent-soft: #f3e4e6;
  --ink: #1d1f21;
  --muted: #5c6166;
  --rule: #d9dcdf;
}
.prototype-banner {
  background: var(--accent-soft); color: var(--accent);
  padding: .5rem 1rem; font-size: .9rem; text-align: center;
  border-bottom: 1px solid var(--rule);
}
.caption { color: var(--muted); font-size: .9rem; margin: .2rem 0 .8rem; }
.lede { font-size: 1.05rem; }
.callout {
  border-left: 3px solid var(--accent); background: #fafafa;
  padding: .7rem 1rem; margin: 1rem 0; font-size: .92rem;
}
.stats { display: flex; flex-wrap: wrap; gap: .8rem; margin: 1.2rem 0; }
.stat {
  border: 1px solid var(--rule); border-radius: 4px; padding: .6rem .9rem;
  min-width: 7rem; text-align: center;
}
.stat b { display: block; font-size: 1.5rem; color: var(--accent); }
.stat span { font-size: .8rem; color: var(--muted); }
.home-split { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
@media (max-width: 900px) { .home-split { grid-template-columns: 1fr; } }
.badge {
  display: inline-block; padding: .1rem .5rem; border-radius: 3px;
  font-size: .78rem; background: #eee; color: var(--muted);
}
.badge.rank-genus { background: #e8eef5; color: #2c4a6b; }
.badge.rank-species { background: #e9f1e9; color: #2f5d34; }
.badge.rank-branch { background: var(--accent-soft); color: var(--accent); }
.badge.kind-cgMLST { background: #e8eef5; color: #2c4a6b; }
.badge.kind-SNP_branch { background: var(--accent-soft); color: var(--accent); }
.badge.kind-plasmid { background: #fdf0e0; color: #8a5a1b; }
.chips { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.chips li { border: 1px solid var(--rule); border-radius: 3px; padding: .2rem .6rem; }
.n { color: var(--muted); font-size: .85rem; }
.src { color: var(--muted); font-size: .82rem; }
table { border-collapse: collapse; width: 100%; margin: .6rem 0 1.2rem; font-size: .92rem; }
th, td { border-bottom: 1px solid var(--rule); padding: .35rem .6rem; text-align: left; }
th { font-weight: 600; color: var(--muted); font-size: .84rem; }
.rep { text-align: center; font-size: .8rem; }
.rep-present { background: #e9f1e9; color: #2f5d34; }
.rep-absent { background: #f6f6f6; color: var(--muted); }
.rep-partial { background: #fdf0e0; color: #8a5a1b; }
.rep-unknown, .rep-none { color: #b9bdc1; }
.auth-unknown { color: #8a5a1b; }
.filters { display: flex; gap: .6rem; margin: 1rem 0; flex-wrap: wrap; }
.filters input, .filters select { padding: .35rem .5rem; border: 1px solid var(--rule); border-radius: 3px; }
.fiche section { margin: 1.6rem 0; }
.fiche h2 { font-size: 1.15rem; border-bottom: 1px solid var(--rule); padding-bottom: .2rem; }
.feedback form { display: flex; flex-direction: column; gap: .5rem; max-width: 34rem; }
.feedback label { display: flex; flex-direction: column; font-size: .88rem; gap: .2rem; }
.api-hint { font-size: .85rem; color: var(--muted); }
.site-footer { border-top: 1px solid var(--rule); margin-top: 2.5rem; padding: 1rem; color: var(--muted); font-size: .85rem; }