/* SCIENCE — a light editorial desk. Cool bone paper, serif prose, mono
   machinery. The rule: anything the desk *says* is serif; anything the desk
   *measures* is mono. */
:root {
  --paper: #f7f7f4;
  --sheet: #ffffff;
  --ink: #17191c;
  --ink-soft: #4e5359;
  --label: #8b9099;
  --rule: #dedede;
  --rule-soft: #ebebe7;
  --accent: #2c6e54;   /* clinical green — links, live, top tier */
  --amber: #8a6a1f;
  --rust: #9c3b2e;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --gutter: max(22px, calc((100% - 1120px) / 2));
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }

body {
  padding-top: 52px; /* clears the fixed masthead */
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ink); text-decoration-color: var(--rule); text-underline-offset: 3px; }
a:hover { color: var(--accent); text-decoration-color: var(--accent); }
code { background: var(--rule-soft); padding: 1px 4px; font-size: 0.92em; }
::selection { background: #d7e5dd; }

/* ---------------------------------------------------------------- masthead */
#topnav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 11px var(--gutter);
  border-bottom: 3px double var(--rule);
  background: rgba(247, 247, 244, 0.95);
  backdrop-filter: blur(6px);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0.2em;
  font-size: 17px;
  text-decoration: none;
  white-space: nowrap;
}
.nav-brand:hover { color: var(--ink); }
.nav-logo { display: block; width: 24px; height: 24px; border-radius: 5px; }

.nav-links { display: flex; gap: 20px; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; }
.nav-links a { text-decoration: none; color: var(--label); }
.nav-links a:hover { color: var(--accent); }
.nav-links a.active { color: var(--ink); }

/* the dateline — the desk's vitals, always visible */
.nav-status { color: var(--ink-soft); font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-status .sep { margin: 0 7px; color: var(--rule); }

.dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--label);
  margin-right: 7px;
}
.dot.ok { background: var(--accent); animation: pulse 2s ease-in-out infinite; }
.dot.warn { background: var(--amber); }
.dot.err { background: var(--rust); }
@keyframes pulse { 50% { opacity: 0.3; } }
@media (prefers-reduced-motion: reduce) { .dot.ok { animation: none; } }

/* ---------------------------------------------------------------- hero */
#top { padding: 78px var(--gutter) 52px; border-bottom: 1px solid var(--rule); }

#top .kicker {
  font-size: 10.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--label);
  margin-bottom: 20px;
}

#top h1 {
  font-family: var(--serif);
  font-size: clamp(34px, 5.4vw, 54px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.015em;
  max-width: 15ch;
}
#top h1 em { font-style: italic; color: var(--accent); }

.lede {
  margin-top: 22px;
  max-width: 60ch;
  font-family: var(--serif);
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.6;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 42px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}
.stat .n { font-family: var(--serif); font-size: 30px; font-weight: 400; line-height: 1.1; }
.stat .l { color: var(--label); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; margin-top: 5px; }

.cta { display: flex; gap: 10px; margin-top: 34px; flex-wrap: wrap; }
.btn {
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  padding: 9px 18px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); background: transparent; }

/* ---------------------------------------------------------------- sections */
.prose, #live { padding: 54px var(--gutter); border-bottom: 1px solid var(--rule); }

/* label sits on its own hairline — no section numbering */
.sec-label {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--label);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  margin-bottom: 26px;
}
.sec-label::after { content: ""; flex: 1; height: 1px; background: var(--rule); }

.prose p {
  max-width: 64ch;
  font-family: var(--serif);
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.68;
  margin-bottom: 16px;
}
.prose p strong { color: var(--ink); font-weight: 600; }
.prose p em { color: var(--ink); font-style: italic; }
.prose p code { font-family: var(--mono); font-size: 12.5px; }

.sec-sub { max-width: 64ch; font-family: var(--serif); color: var(--ink-soft); font-size: 15px; margin-bottom: 24px; }

p.caveat {
  border-left: 2px solid var(--rust);
  padding-left: 16px;
  color: var(--label);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
}

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 28px 0 20px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; }

.card { border: 1px solid var(--rule); background: var(--sheet); padding: 18px; }
.card-h {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 9px;
}
.grid-2 .card-h { margin-top: 24px; }
.grid-2 .card-h:first-child { margin-top: 0; }
.card p { font-family: var(--serif); font-size: 14.5px; line-height: 1.6; color: var(--ink-soft); margin: 0; }

ul.api { list-style: none; font-size: 12px; color: var(--ink-soft); }
ul.api li { margin: 5px 0; }

/* ---------------------------------------------------------------- ladder */
.rungs { border: 1px solid var(--rule); background: var(--sheet); margin: 26px 0 20px; max-width: 860px; }
.rung { display: flex; gap: 18px; align-items: baseline; padding: 15px 18px; border-bottom: 1px solid var(--rule-soft); flex-wrap: wrap; }
.rung:last-child { border-bottom: 0; }
.rung p { flex: 1 1 380px; font-family: var(--serif); color: var(--ink-soft); font-size: 14.5px; margin: 0; }

.tier {
  display: inline-block;
  font-size: 9.5px;
  letter-spacing: 0.16em;
  padding: 3px 9px;
  border: 1px solid var(--label);
  color: var(--label);
  white-space: nowrap;
}
.tier.CANDIDATE { border-color: var(--amber); color: var(--amber); }
.tier.DOSSIER { border-color: var(--accent); background: var(--accent); color: #fff; }

/* ---------------------------------------------------------------- live page */
.live-grid {
  display: grid;
  grid-template-columns: 1fr 330px;
  height: calc(100vh - 200px);
  min-height: 460px;
  border: 1px solid var(--rule);
  background: var(--sheet);
}
.live-page #live { padding-top: 28px; padding-bottom: 28px; }
.live-page .live-head { max-width: 64ch; margin-bottom: 20px; }
.live-page .live-grid { height: calc(100vh - 250px); min-height: 440px; }

.live-teaser {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  border: 1px solid var(--rule);
  background: var(--sheet);
  padding: 18px 20px;
  margin-top: 26px;
  max-width: 760px;
}
.teaser-status { color: var(--ink-soft); font-size: 11.5px; }
.teaser-status .sep { margin: 0 7px; color: var(--rule); }

/* ---------------------------------------------------------------- terminal */
#terminal { min-width: 0; min-height: 0; position: relative; display: flex; flex-direction: column; border-right: 1px solid var(--rule); }

#lines {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 18px 22px 16px;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}
#lines::-webkit-scrollbar { width: 10px; }
#lines::-webkit-scrollbar-track { background: transparent; }
#lines::-webkit-scrollbar-thumb { background: var(--rule); border: 3px solid var(--sheet); border-radius: 6px; }

#jump-live {
  position: absolute;
  right: 20px; bottom: 16px;
  z-index: 3;
  display: none;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 12px;
  cursor: pointer;
  box-shadow: 0 1px 5px rgba(23, 25, 28, 0.08);
}
#jump-live.show { display: block; }
#jump-live:hover { border-color: var(--accent); color: var(--accent); }

.ln { white-space: pre-wrap; word-break: break-word; margin: 1px 0; font-size: 12.5px; }
.ln .ts { color: var(--label); margin-right: 10px; font-size: 10.5px; }
.ln .pfx { color: var(--rule); margin-right: 2px; }

.ln.sys { color: var(--ink-soft); }
.ln.fetch, .ln.kg, .ln.pmc, .ln.ctgov { color: var(--ink-soft); }
.ln.fetch .pfx, .ln.kg .pfx, .ln.pmc .pfx, .ln.ctgov .pfx { color: var(--accent); }
.ln.paper, .ln.trial { color: var(--ink-soft); }
.ln .new { color: var(--accent); font-size: 9.5px; letter-spacing: 0.12em; margin-right: 6px; }
.ln.desk { color: var(--ink); }
.ln.desk .pfx { color: var(--accent); }
.ln.warn { color: var(--amber); }
.ln.err { color: var(--rust); }

.ln.ledger {
  color: var(--ink);
  margin-top: 12px;
  padding-top: 8px;
  border-top: 1px solid var(--rule-soft);
}
.ln.ledger .pfx { color: var(--accent); }

.cycle-head {
  margin: 20px 0 10px;
  padding: 7px 0 7px 12px;
  border-left: 3px solid var(--accent);
  background: var(--paper);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.cycle-head .sub { color: var(--label); letter-spacing: 0.04em; text-transform: none; }

.sblock { margin: 10px 0 12px; border-left: 1px solid var(--rule); padding-left: 16px; }
.sblock .shead { color: var(--label); font-size: 9.5px; letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: 6px; }
.sblock .shead .model { color: var(--accent); }
.sblock pre { font-family: var(--mono); font-size: 12.5px; white-space: pre-wrap; word-break: break-word; }
.sblock pre.thinking { color: var(--label); font-style: italic; margin-bottom: 8px; }
.sblock pre.answer { color: var(--ink); }
.sblock .aborted-note { color: var(--rust); font-size: 10.5px; margin-top: 3px; }

.stream-cursor {
  display: inline-block;
  width: 6px; height: 12px;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .stream-cursor { animation: none; } }

/* ---------------------------------------------------------------- side panel */
#results { min-width: 0; min-height: 0; display: flex; flex-direction: column; background: var(--paper); }

.panel-head {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 18px;
  border-bottom: 1px solid var(--rule);
  letter-spacing: 0.18em;
  font-size: 9.5px;
  text-transform: uppercase;
  color: var(--label);
}
.panel-head .count { color: var(--accent); }

#panel-body { flex: 1 1 auto; min-height: 0; overflow-y: auto; padding-bottom: 20px; scrollbar-width: thin; scrollbar-color: var(--rule) transparent; }

.empty { color: var(--label); padding: 18px; font-size: 12px; }

.panel-sub {
  padding: 14px 18px 6px;
  color: var(--label);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.lead-row { padding: 11px 18px; border-bottom: 1px solid var(--rule-soft); }
.lead-row .lr-top { display: flex; gap: 9px; align-items: baseline; }
.lead-row .lr-title { font-size: 12px; color: var(--ink); flex: 1; }
.lead-row .lr-cits { color: var(--label); font-size: 10.5px; margin-top: 4px; word-break: break-all; }

.finding { border-bottom: 1px solid var(--rule-soft); padding: 13px 18px; cursor: pointer; }
.finding:hover { background: var(--sheet); }
.finding .f-top { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.finding .f-name { color: var(--accent); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; }
.finding .f-ts { color: var(--label); font-size: 10.5px; white-space: nowrap; }
.finding .f-meta { color: var(--label); font-size: 10.5px; margin-top: 3px; }
.finding .f-summary { font-family: var(--serif); color: var(--ink-soft); font-size: 14px; line-height: 1.55; margin-top: 7px; }
.finding .f-detail { display: none; margin-top: 12px; }
.finding.open .f-detail { display: block; }

/* ---------------------------------------------------------------- archive */
.tabs { display: flex; gap: 28px; border-bottom: 1px solid var(--rule); margin-bottom: 24px; }
.tabbtn {
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--label);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0 0 10px;
  cursor: pointer;
}
.tabbtn.on { color: var(--ink); border-bottom-color: var(--accent); }

.filters { display: flex; gap: 10px; margin-bottom: 22px; flex-wrap: wrap; }
.filters select, .filters input {
  background: var(--sheet);
  border: 1px solid var(--rule);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  padding: 8px 10px;
  min-width: 210px;
}
.filters select:focus, .filters input:focus { outline: 0; border-color: var(--accent); }

#archive-list { border-top: 1px solid var(--rule); }
#archive-list .finding { padding: 16px 2px; border-bottom: 1px solid var(--rule); }
#archive-list .finding:hover { background: transparent; }
#archive-list .f-summary { max-width: 72ch; }

.det-h {
  color: var(--accent);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin: 18px 0 8px;
  padding-top: 10px;
  border-top: 1px solid var(--rule-soft);
}
.notebook { font-family: var(--serif); white-space: pre-wrap; color: var(--ink); font-size: 15px; line-height: 1.68; max-width: 72ch; }
.qline { color: var(--ink-soft); font-size: 12px; margin: 4px 0; }
.move { display: inline-block; border: 1px solid var(--rule); background: var(--sheet); padding: 4px 9px; margin: 3px 5px 3px 0; font-size: 10.5px; color: var(--ink-soft); }
.move .st { letter-spacing: 0.1em; margin-right: 6px; }
.move .st-NEW, .move .st-STRENGTHENED { color: var(--accent); }
.move .st-WEAKENED { color: var(--amber); }
.move .st-RETIRED { color: var(--rust); }

.cit { display: block; font-size: 11.5px; color: var(--ink-soft); margin: 4px 0; }
.cit a { color: var(--ink); }
.cit .new { color: var(--accent); font-size: 9.5px; letter-spacing: 0.1em; margin-left: 7px; }
.cit .uv { color: var(--rust); font-size: 9.5px; letter-spacing: 0.1em; margin-left: 7px; }

.dgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 14px; }
.dcard { border: 1px solid var(--rule); background: var(--sheet); padding: 16px; cursor: pointer; }
.dcard:hover { border-color: var(--accent); }
.dcard h3 { font-family: var(--serif); font-size: 18px; font-weight: 400; }
.dcard .sub { color: var(--label); font-size: 10px; letter-spacing: 0.08em; margin-top: 4px; text-transform: uppercase; }
.dcard .lrow { margin-top: 11px; display: flex; gap: 5px; flex-wrap: wrap; }
.dcard .oq { font-family: var(--serif); color: var(--ink-soft); font-size: 14px; margin-top: 11px; }

.dfull { border: 1px solid var(--rule); background: var(--sheet); padding: 24px; margin-bottom: 20px; }
.dfull .backlink { color: var(--label); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; cursor: pointer; }
.dfull .backlink:hover { color: var(--accent); }
.dfull h2 { font-family: var(--serif); margin: 12px 0 3px; font-size: 26px; font-weight: 400; }
.dfull .sub { color: var(--label); font-size: 11px; letter-spacing: 0.06em; }

.lead-item { border: 1px solid var(--rule-soft); background: var(--paper); padding: 15px 16px; margin-top: 11px; }
.lead-item .lt { display: flex; gap: 11px; align-items: baseline; flex-wrap: wrap; }
.lead-item .lt b { font-family: var(--serif); font-size: 16px; font-weight: 600; flex: 1 1 240px; }
.lead-item .conf { color: var(--label); font-size: 10px; letter-spacing: 0.06em; }
.lead-item .sect { color: var(--ink-soft); font-size: 12.5px; margin-top: 10px; }
.lead-item .sect em { color: var(--label); font-style: normal; font-size: 9.5px; letter-spacing: 0.16em; text-transform: uppercase; display: block; margin-bottom: 3px; }

/* ---------------------------------------------------------------- footer */
footer { padding: 38px var(--gutter) 30px; background: var(--paper); }
.cols { display: flex; gap: 54px; flex-wrap: wrap; }
.col .label { color: var(--accent); font-size: 9.5px; letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 10px; }
.col .kv { color: var(--ink-soft); font-size: 12px; margin: 3px 0; }

.smallprint {
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
  color: var(--label);
  font-size: 10.5px;
  line-height: 1.65;
  max-width: 96ch;
}

/* ---------------------------------------------------------------- mobile */
@media (max-width: 1000px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; gap: 28px; }
  .nav-links { display: none; }
}

@media (max-width: 900px) {
  .live-grid { grid-template-columns: 1fr; grid-template-rows: 1fr 34vh; height: calc(100vh - 190px); }
  #terminal { border-right: 0; }
  #results { border-top: 1px solid var(--rule); }
  #top { padding: 52px 16px 40px; }
  .lede { font-size: 15.5px; }
  .prose p { font-size: 15px; }
  .stats { gap: 26px; }
  .stat .n { font-size: 24px; }
  .prose, #live { padding: 40px 16px; }
  .cols { gap: 26px; }
  .nav-status { font-size: 10px; }
  footer { padding: 28px 16px 22px; }
}