:root {
  --bg: #fbfaf8;
  --bg-raised: #ffffff;
  --text: #1c1917;
  --text-dim: #5f5a54;
  --border: #e4dfd8;
  --accent: #2f5d4f;
  --accent-bg: #e7f0ec;
  --chip-official-bg: #eef1ed;
  --chip-official-text: #3a4a3f;
  --chip-thread-bg: #f3ecda;
  --chip-thread-text: #6b5323;
  --chip-editorial-bg: #ece7f5;
  --chip-editorial-text: #4a3b73;
  --danger: #8a3324;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(28, 25, 23, 0.06), 0 1px 8px rgba(28, 25, 23, 0.04);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17161a;
    --bg-raised: #201f24;
    --text: #eae7e2;
    --text-dim: #a6a1998a;
    --text-dim: #a29c93;
    --border: #34323a;
    --accent: #7fc4a8;
    --accent-bg: #1e2e28;
    --chip-official-bg: #202a24;
    --chip-official-text: #a9d4b8;
    --chip-thread-bg: #2c2618;
    --chip-thread-text: #d8bd7e;
    --chip-editorial-bg: #241f30;
    --chip-editorial-text: #bcaee0;
    --danger: #e0897a;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 8px rgba(0, 0, 0, 0.25);
  }
}

:root[data-theme="dark"] {
  --bg: #17161a; --bg-raised: #201f24; --text: #eae7e2; --text-dim: #a29c93;
  --border: #34323a; --accent: #7fc4a8; --accent-bg: #1e2e28;
  --chip-official-bg: #202a24; --chip-official-text: #a9d4b8;
  --chip-thread-bg: #2c2618; --chip-thread-text: #d8bd7e;
  --chip-editorial-bg: #241f30; --chip-editorial-text: #bcaee0;
  --danger: #e0897a; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 1px 8px rgba(0,0,0,.25);
}
:root[data-theme="light"] {
  --bg: #fbfaf8; --bg-raised: #ffffff; --text: #1c1917; --text-dim: #5f5a54;
  --border: #e4dfd8; --accent: #2f5d4f; --accent-bg: #e7f0ec;
  --chip-official-bg: #eef1ed; --chip-official-text: #3a4a3f;
  --chip-thread-bg: #f3ecda; --chip-thread-text: #6b5323;
  --chip-editorial-bg: #ece7f5; --chip-editorial-text: #4a3b73;
  --danger: #8a3324; --shadow: 0 1px 2px rgba(28,25,23,.06), 0 1px 8px rgba(28,25,23,.04);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg-raised);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 20px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand h1 { margin: 0; font-size: 20px; letter-spacing: -0.01em; }
.tagline { margin: 2px 0 0; color: var(--text-dim); font-size: 13.5px; }
.origin-note { margin: 4px 0 0; color: var(--text-dim); font-size: 12px; }
.header-links { display: flex; gap: 18px; font-size: 13.5px; white-space: nowrap; }

/* Status / loading */
.status-banner {
  margin: 20px 0;
  padding: 12px 16px;
  border-radius: var(--radius);
  background: var(--chip-thread-bg);
  color: var(--chip-thread-text);
  font-size: 13.5px;
}
.status-banner.error { background: color-mix(in srgb, var(--danger) 15%, var(--bg-raised)); color: var(--danger); }

/* Controls */
.controls { margin: 24px 0 18px; }

/* Quickstart: the two plain-English questions everyone sees. */
.quickstart {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 14px;
}
.quickstart[hidden] { display: none; }
.quickstart-row h4 {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 600;
}

.toggle { display: flex; align-items: center; gap: 7px; font-size: 13.5px; color: var(--text-dim); cursor: pointer; margin-bottom: 4px; }
.toggle input { accent-color: var(--accent); width: 15px; height: 15px; }

.facet-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.facet-chip {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12.5px;
  cursor: pointer;
}
.facet-chip:hover { border-color: var(--accent); }
.facet-chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-raised);
}

.controls-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--text-dim);
}
.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 12.5px;
  padding: 0;
}
.link-btn:hover { text-decoration: underline; }

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 14px;
  margin-bottom: 40px;
}
.card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.card.is-adjacent { opacity: 0.92; }

/* byre: pinned to the top of its results, given a glow, and immediately
   disclosed as the dataset author's own project — see the .byre-note copy
   for the actual disclosure. Respects reduced-motion. */
.card.is-byre {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 0 16px 1px color-mix(in srgb, var(--accent) 40%, transparent), var(--shadow);
  animation: byre-glow 2.6s ease-in-out infinite alternate;
}
@keyframes byre-glow {
  from { box-shadow: 0 0 0 1px var(--accent), 0 0 10px 0px color-mix(in srgb, var(--accent) 30%, transparent), var(--shadow); }
  to   { box-shadow: 0 0 0 1px var(--accent), 0 0 26px 3px color-mix(in srgb, var(--accent) 55%, transparent), var(--shadow); }
}
@media (prefers-reduced-motion: reduce) {
  .card.is-byre { animation: none; }
}
.byre-note {
  margin: 0;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--accent-bg);
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
}

.card-header { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.card-title { margin: 0; font-size: 16px; }
.card-title-link { color: inherit; }
.card-title-link:hover { color: var(--accent); text-decoration: underline; }
.card-role {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.card-tagline { margin: 0; color: var(--text-dim); font-size: 13.5px; }

.card-facet-table { border-collapse: collapse; width: 100%; font-size: 12.5px; }
.card-facet-table td { padding: 3px 0; vertical-align: middle; }
.card-facet-table .facet-icon { width: 20px; color: var(--text-dim); text-align: center; font-size: 12px; }
.card-facet-table .facet-label { color: var(--text-dim); padding-right: 10px; white-space: nowrap; }
.card-facet-table .facet-value { color: var(--text); font-weight: 500; }
.card-facet-table .facet-value.ev-thread { color: var(--chip-thread-text); }
.card-facet-table .facet-value.ev-editorial { color: var(--chip-editorial-text); }
.card-facet-table .facet-value[title] { border-bottom: 1px dotted currentColor; cursor: default; }

.card-facts {
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  font-size: 12.5px;
}
.card-facts dt { color: var(--text-dim); }
.card-facts dd { margin: 0; }

.card-limitations {
  font-size: 12.5px;
  color: var(--text-dim);
}
.card-limitations ul { margin: 4px 0 0; padding-left: 18px; }
.card-limitations li { margin-bottom: 2px; }

.card-details-toggle {
  align-self: flex-start;
  font-size: 11.5px;
}

/* Details modal: a single shared <dialog>, populated per-card on open. */
.details-modal {
  width: min(560px, calc(100vw - 40px));
  max-height: min(80vh, 720px);
  margin: auto;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-raised);
  color: var(--text);
  box-shadow: var(--shadow);
}
.details-modal::backdrop { background: rgba(20, 18, 15, 0.55); }
.details-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-raised);
}
.details-modal-header h3 { margin: 0; font-size: 15px; }
#detailsModalClose {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
}
#detailsModalClose:hover { color: var(--text); }

.card-details {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px 16px;
  font-size: 12.5px;
  overflow-y: auto;
}
.detail-row-head { display: flex; align-items: baseline; gap: 4px; flex-wrap: wrap; }
.detail-label { color: var(--text-dim); }
.detail-ev {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--chip-official-bg);
  color: var(--chip-official-text);
}
.detail-ev.ev-thread { background: var(--chip-thread-bg); color: var(--chip-thread-text); }
.detail-ev.ev-editorial { background: var(--chip-editorial-bg); color: var(--chip-editorial-text); }
.detail-source { color: var(--text-dim); font-size: 11.5px; }
.detail-basis { color: var(--text-dim); font-size: 11.5px; font-style: italic; }

.card-footer {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}
.card-primary-link {
  font-weight: 600;
  font-size: 12.5px;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 4px 12px;
  white-space: nowrap;
}
.card-primary-link:hover {
  background: var(--accent);
  color: var(--bg-raised);
  text-decoration: none;
}
.card-links { display: flex; flex-wrap: wrap; gap: 10px; color: var(--text-dim); }
.card-links a { color: var(--text-dim); }
.card-links a:hover { color: var(--accent); }

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-dim);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-raised);
  padding: 24px 0 36px;
  margin-top: 20px;
}
.footer-inner p { max-width: 720px; font-size: 13px; color: var(--text-dim); margin: 0 0 10px; }
.footer-plug { font-size: 12.5px !important; }

@media (max-width: 640px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
}