/* JAIGR public site. System fonts only (strict CSP, no third-party requests). */
:root {
  /* NUS blue #003D7C and NUS orange #EF7C00 */
  --paper: #fafbfc; --paper-2: #eef2f7; --card: #ffffff; --ink: #14202e; --ink-2: #44505e; --ink-3: #66707d;
  --rule: #dce2ea; --accent: #003D7C; --accent-ink: #ffffff; --link: #003D7C; --focus: #EF7C00;
  --brand-2: #EF7C00; --brand-2-ink: #14202e; --brand-2-text: #a85600;
  --ok: #1e6b3a; --ok-bg: #e5f2e8; --part: #8a5a00; --part-bg: #fbefd6; --bad: #a3231c; --bad-bg: #fbe4e1;
  --none: #5b5470; --none-bg: #ece9f3; --unk: #5d6670; --unk-bg: #eceef0;
  --serif: "Iowan Old Style", "Charter", "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --measure: 70ch;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0f1620; --paper-2: #16202c; --card: #1a2533; --ink: #e7ebf0; --ink-2: #b6c0cc; --ink-3: #8b97a5;
    --rule: #2a3646; --accent: #7fb0ea; --accent-ink: #0b1420; --link: #8fbcf0; --focus: #ff9a2e;
    --brand-2: #EF7C00; --brand-2-ink: #14202e; --brand-2-text: #ffa54a;
    --ok: #7fcf98; --ok-bg: #1b3324; --part: #e7b65c; --part-bg: #3a2e14; --bad: #f08a80; --bad-bg: #3d1d1a;
    --none: #bdb3dc; --none-bg: #2a2638; --unk: #b3bcc6; --unk-bg: #262b31;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.6 var(--sans); min-height: 100vh; display: flex; flex-direction: column; }
#root { display: flex; flex-direction: column; flex: 1; }
main { flex: 1; }
a { color: var(--link); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 2px; }
h1, h2, h3 { font-family: var(--serif); line-height: 1.2; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.9rem, 1.4rem + 2vw, 2.7rem); margin: 0 0 .5em; }
h2 { font-size: 1.45rem; margin: 2em 0 .6em; }
h3 { font-size: 1.15rem; margin: 1.5em 0 .4em; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: var(--measure); padding-top: 3rem; padding-bottom: 4rem; }
.skip { position: absolute; left: -999px; } .skip:focus { left: 16px; top: 8px; background: var(--card); padding: 8px 12px; z-index: 10; }
.muted, .empty { color: var(--ink-3); }

/* Masthead */
.masthead { border-top: 4px solid var(--brand-2); border-bottom: 1px solid var(--rule); background: var(--paper); position: sticky; top: 0; z-index: 5; }
.masthead-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.wordmark { display: flex; align-items: baseline; gap: 10px; text-decoration: none; color: var(--ink); }
.wm-short { font: 800 1.25rem/1 var(--serif); letter-spacing: .06em; color: var(--accent); }
.wm-long { font: 600 .95rem/1.2 var(--serif); color: var(--ink-2); }
.masthead nav { display: flex; gap: 4px 18px; flex-wrap: wrap; align-items: center; font-size: .93rem; }
.masthead nav a { color: var(--ink-2); text-decoration: none; padding: 6px 0; }
.masthead nav a[aria-current] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--accent); }
.masthead nav a:hover { color: var(--ink); }
.masthead nav .nav-cta { background: var(--brand-2); color: var(--brand-2-ink); padding: 6px 14px; border-radius: 999px; font-weight: 600; }
.masthead nav .nav-cta:hover, .masthead nav .nav-cta[aria-current] { color: var(--brand-2-ink); box-shadow: none; }
.masthead nav .nav-cta:hover { filter: brightness(1.08); }
@media (max-width: 640px) { .wm-long, .nav-secondary { display: none; } .masthead-inner { flex-wrap: nowrap; } .masthead nav { flex-wrap: nowrap; gap: 14px; } }

/* Buttons */
.button { display: inline-block; background: var(--accent); color: var(--accent-ink); padding: 11px 20px; border-radius: 6px; text-decoration: none; font-weight: 600; border: 1px solid var(--accent); }
.button.secondary { background: transparent; color: var(--accent); }
.button:hover { filter: brightness(1.08); }

/* Home */
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
section.wrap { padding-bottom: 2rem; }

/* Article cards */
.article-cards { list-style: none; padding: 0; margin: 0 0 3rem; display: grid; gap: 0; }
.article-card { border-top: 1px solid var(--rule); padding: 22px 0; }
.article-card h3 { font-size: 1.3rem; margin: .25em 0 .3em; }
.article-card h3 a { color: var(--ink); text-decoration: none; }
.article-card h3 a:hover { color: var(--link); text-decoration: underline; }
.card-meta, .card-ai { font-size: .85rem; color: var(--ink-3); margin: 0; }
.card-author { margin: 0 0 .4em; font-weight: 600; font-size: .95rem; }
.card-abstract { margin: 0 0 .4em; color: var(--ink-2); font-family: var(--serif); }
.subject { color: var(--accent); font-weight: 600; }
.flag { display: inline-block; background: var(--bad-bg); color: var(--bad); font-weight: 700; font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; padding: 2px 8px; border-radius: 4px; margin: 0 0 .4em; }
.is-retracted h3 a { text-decoration: line-through; text-decoration-thickness: 1px; }

/* Article list */
.list-layout { display: grid; grid-template-columns: 240px 1fr; gap: 48px; padding-top: 2.5rem; }
.filters h2 { font-size: .8rem; font-family: var(--sans); text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); margin-top: .6rem; }
.filters ul { list-style: none; padding: 0; margin: 0; font-size: .93rem; }
.filters a { display: flex; justify-content: space-between; gap: 8px; padding: 5px 8px; border-radius: 6px; color: var(--ink-2); text-decoration: none; }
.filters a[aria-current] { background: var(--paper-2); color: var(--ink); font-weight: 600; }
.count { color: var(--ink-3); font-variant-numeric: tabular-nums; }
.pager { display: flex; gap: 20px; align-items: center; justify-content: center; margin-bottom: 3rem; color: var(--ink-3); }
@media (max-width: 800px) { .list-layout { grid-template-columns: 1fr; gap: 8px; } }

/* Article */
.article { max-width: 820px; padding-top: 2.5rem; padding-bottom: 4rem; }
.article-head { border-bottom: 1px solid var(--rule); padding-bottom: 1.5rem; margin-bottom: 1.5rem; }
.article-type { font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); font-weight: 600; margin: 0 0 .8rem; }
.byline { font-size: 1.05rem; margin: 0 0 1.2rem; }
.byline .author { font-weight: 650; }
.byline .affil { color: var(--ink-2); font-size: .95rem; }
.orcid { font-size: .8rem; margin-left: 6px; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px 24px; margin: 0; font-size: .9rem; }
.facts dt { color: var(--ink-3); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; }
.facts dd { margin: 0; font-weight: 600; font-variant-numeric: tabular-nums; }
.abstract { background: var(--paper-2); border-radius: 10px; padding: 4px 24px 16px; }
.abstract h2 { font-size: 1rem; text-transform: uppercase; letter-spacing: .1em; font-family: var(--sans); color: var(--ink-3); margin-top: 1.2em; }
.abstract p { font-family: var(--serif); font-size: 1.05rem; }
.keywords { font-family: var(--sans) !important; font-size: .9rem !important; color: var(--ink-2); }
.keywords span { font-weight: 700; }
.assessment-summary { border: 1px solid var(--rule); border-radius: 10px; padding: 4px 24px 12px; margin-top: 1.5rem; background: var(--card); }
.assessment-summary h2 { font-size: 1.05rem; margin-top: 1em; }
.tally { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; margin: .6rem 0; }
.tally li { padding: 4px 12px; border-radius: 999px; font-size: .9rem; font-weight: 600; }
.tally .n { font-variant-numeric: tabular-nums; font-weight: 800; margin-right: 2px; }
.caveat { font-size: .88rem; color: var(--ink-3); }
.article-body { font-family: var(--serif); font-size: 1.12rem; line-height: 1.72; max-width: var(--measure); margin-top: 2rem; }
.article-body h2 { font-size: 1.5rem; }
.article-body table { border-collapse: collapse; font-family: var(--sans); font-size: .9rem; margin: 1.5em 0; display: block; overflow-x: auto; }
.article-body th, .article-body td { border-bottom: 1px solid var(--rule); padding: 6px 10px; text-align: left; }
.article-body blockquote { margin: 1.2em 0; padding-left: 1em; border-left: 3px solid var(--rule); color: var(--ink-2); }
.article-body pre { overflow-x: auto; background: var(--paper-2); padding: 12px; border-radius: 6px; font-size: .85rem; }
.xref { font-family: var(--sans); font-size: .82em; white-space: nowrap; }
.xref a { text-decoration: none; }

/* Verdicts */
.badge { display: inline-block; font: 700 .76rem/1.4 var(--sans); padding: 2px 9px; border-radius: 4px; letter-spacing: .02em; }
.v-supported { background: var(--ok-bg); color: var(--ok); }
.v-partially_supported { background: var(--part-bg); color: var(--part); }
.v-contradicted { background: var(--bad-bg); color: var(--bad); }
.v-unsupported { background: var(--none-bg); color: var(--none); }
.v-unverifiable, .v-none { background: var(--unk-bg); color: var(--unk); }
.claims { padding-left: 1.4em; }
.claim { margin: 0 0 1.4rem; padding-bottom: 1rem; border-bottom: 1px dashed var(--rule); }
.claim-text { font-family: var(--serif); font-size: 1.04rem; margin: 0 0 .5rem; }
.verdict { margin: .5rem 0 0 0; font-size: .93rem; }
.verdict p { margin: .2rem 0; }
.verdict blockquote { margin: .4rem 0; padding: 8px 12px; background: var(--paper-2); border-left: 3px solid var(--accent); font-family: var(--serif); border-radius: 0 6px 6px 0; }
.page { font-family: var(--sans); font-size: .8rem; color: var(--ink-3); white-space: nowrap; }
.unverified, .numflag { display: block; color: var(--bad); font-family: var(--sans); font-size: .82rem; font-weight: 600; }
.rationale { color: var(--ink-2); }
.references ol { padding-left: 2.2em; font-size: .95rem; }
.references li { margin-bottom: .5em; overflow-wrap: anywhere; }
.references li:target { background: var(--part-bg); }
.declarations h3 { font-family: var(--sans); font-size: .95rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); }
.workflow { white-space: pre-wrap; font: .85rem/1.5 var(--mono); background: var(--paper-2); padding: 12px; border-radius: 6px; overflow-x: auto; }
details summary { cursor: pointer; color: var(--link); }
.citation { font-family: var(--serif); background: var(--paper-2); padding: 14px 18px; border-radius: 8px; overflow-wrap: anywhere; }
.versions code { font-size: .8rem; color: var(--ink-3); }

/* Notices */
.notice { border-radius: 8px; padding: 12px 18px; margin-bottom: 1rem; border: 1px solid; }
.notice p { margin: .2rem 0; }
.notice-kind { font-weight: 800; text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; }
.notice-retraction { background: var(--bad-bg); color: var(--bad); border-color: currentColor; }
.notice-expression_of_concern { background: var(--part-bg); color: var(--part); border-color: currentColor; }
.notice-correction, .notice-version { background: var(--paper-2); border-color: var(--rule); }

/* Policies */
.policy-layout { display: grid; grid-template-columns: 220px 1fr; gap: 48px; padding-top: 2.5rem; padding-bottom: 4rem; }
.policy-nav { display: flex; flex-direction: column; gap: 2px; position: sticky; top: 84px; align-self: start; font-size: .93rem; }
.policy-nav a { padding: 6px 10px; border-radius: 6px; color: var(--ink-2); text-decoration: none; }
.policy-nav a[aria-current] { background: var(--paper-2); color: var(--ink); font-weight: 600; }
.prose { max-width: var(--measure); }
.prose p, .prose li, .prose dd { font-family: var(--serif); font-size: 1.06rem; }
.updated { color: var(--ink-3); font-size: .88rem; font-family: var(--sans) !important; }
.defs dt { margin-top: .8rem; } .defs dd { margin-left: 0; }
@media (max-width: 800px) { .policy-layout { grid-template-columns: 1fr; gap: 8px; } .policy-nav { position: static; flex-direction: row; flex-wrap: wrap; } }

/* Footer */
.colophon { border-top: 1px solid var(--rule); background: var(--paper-2); padding: 36px 0 44px; font-size: .9rem; color: var(--ink-2); }
.colophon-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 32px; }
.colophon-name { font: 700 1.05rem var(--serif); color: var(--ink); }
.colophon nav { display: flex; flex-direction: column; gap: 4px; }
.colophon nav a { color: var(--ink-2); }
@media (max-width: 700px) { .colophon-grid { grid-template-columns: 1fr; } }
@media print { .masthead, .colophon, .skip { display: none; } body { background: #fff; color: #000; } .article { max-width: none; } }

/* ---- Home ---- */
.btn { display: inline-block; padding: 12px 22px; border-radius: 4px; font-weight: 650; text-decoration: none; border: 2px solid transparent; line-height: 1.2; }
.btn-primary { background: var(--brand-2); color: var(--brand-2-ink); }
.btn-primary:hover { background: #ff8d1a; }
.btn-ghost { color: #fff; border-color: rgba(255,255,255,.55); }
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.08); }

.lead { background: #003D7C; color: #fff; padding: clamp(40px, 7vw, 96px) 0 clamp(44px, 7vw, 88px); position: relative; overflow: hidden; }
.lead::after { content: ""; position: absolute; inset: auto 0 0 0; height: 6px; background: var(--brand-2); }
.lead-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.lead h1 { color: #fff; font-size: clamp(2rem, 1.2rem + 3.2vw, 3.5rem); line-height: 1.08; letter-spacing: -0.015em; max-width: 17ch; margin: 0 0 .55em; }
.lead-text { color: #d6e2f0; font-size: clamp(1.02rem, .95rem + .3vw, 1.18rem); max-width: 54ch; margin: 0 0 1.8rem; }
.lead-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 0; }
.lead a:focus-visible { outline-color: var(--brand-2); }

.specimen { margin: 0; background: #fff; color: #14202e; border-radius: 6px; padding: 26px 26px 22px; box-shadow: 0 24px 60px -24px rgba(0, 16, 40, .55); font-size: .98rem; }
.specimen figcaption { font-size: .82rem; color: #66707d; margin-bottom: 14px; }
.specimen figcaption a { color: #003D7C; }
.specimen-claim { font-family: var(--serif); font-size: 1.22rem; line-height: 1.45; margin: 0 0 18px; }
.specimen-cite { background: none; color: #a85600; font-weight: 700; border-bottom: 3px solid var(--brand-2); padding: 0 1px; }
.specimen-evidence { border-left: 3px solid var(--brand-2); padding-left: 16px; }
.specimen-verdict { margin: 0 0 8px; font-size: .86rem; color: #44505e; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.specimen blockquote { margin: 0 0 10px; font-family: var(--serif); font-style: italic; color: #2b3644; line-height: 1.55; }
.specimen-source { margin: 0; font-size: .82rem; color: #66707d; }

.facts { border-bottom: 1px solid var(--rule); background: var(--card); }
.facts-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0 auto; padding-top: 0; padding-bottom: 0; }
.facts-row > div { padding: 22px 20px 22px 0; }
.facts-row > div + div { border-left: 1px solid var(--rule); padding-left: 20px; }
.facts dt { font: 400 .84rem/1.3 var(--sans); text-transform: none; letter-spacing: 0; color: var(--ink-3); margin-bottom: 4px; }
.facts dd { margin: 0; font-weight: 600; color: var(--ink); line-height: 1.35; }

.process { padding-top: clamp(48px, 7vw, 88px); padding-bottom: clamp(32px, 5vw, 56px); display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(24px, 5vw, 64px); }
.process-intro h2 { font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.2rem); margin-top: 0; }
.process-intro p { color: var(--ink-2); }
.process-steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; gap: 0; }
.process-steps li { counter-increment: step; display: grid; grid-template-columns: 52px 1fr; column-gap: 18px; padding: 0 0 26px; position: relative; }
.process-steps li::before { content: counter(step); grid-row: span 2; width: 40px; height: 40px; border-radius: 50%; border: 2px solid var(--accent); color: var(--accent); display: grid; place-items: center; font-weight: 700; background: var(--paper); position: relative; z-index: 1; }
.process-steps li:not(:last-child)::after { content: ""; position: absolute; left: 20px; top: 40px; bottom: 0; width: 2px; background: var(--rule); }
.process-steps li:last-child::before { background: var(--accent); color: var(--accent-ink); }
.process-steps h3 { margin: 6px 0 4px; font-size: 1.15rem; }
.process-steps p { margin: 0; color: var(--ink-2); max-width: 60ch; }

.latest { padding-bottom: clamp(40px, 6vw, 72px); }
.latest-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; border-top: 2px solid var(--ink); padding-top: 18px; }
.latest-head h2 { margin: 0 0 8px; }

.standards { background: var(--paper-2); border-top: 1px solid var(--rule); }
.standards-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(16px, 5vw, 64px); padding-top: 36px; padding-bottom: 36px; align-items: baseline; }
.standards h2 { margin: 0; font-size: 1.35rem; }
.standards p { margin: 0; color: var(--ink-2); max-width: 70ch; }

@media (max-width: 900px) {
  .lead-grid, .process, .standards-grid { grid-template-columns: minmax(0, 1fr); }
  .facts-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts-row > div:nth-child(3) { border-left: 0; padding-left: 0; }
  .facts-row > div:nth-child(n+3) { border-top: 1px solid var(--rule); }
}
@media (max-width: 520px) {
  .facts-row { grid-template-columns: minmax(0, 1fr); }
  .facts-row > div, .facts-row > div + div { border-left: 0; padding-left: 0; }
  .facts-row > div + div { border-top: 1px solid var(--rule); }
  .specimen { padding: 20px 18px; }
}
@media (prefers-color-scheme: dark) {
  .lead { background: #062a52; }
}
.byline { list-style: none; padding: 0; margin: .4rem 0 1rem; display: flex; flex-wrap: wrap; gap: 6px 28px; }
.byline .corr { color: var(--brand-2-text); margin-left: 2px; font-weight: 700; }
.avatar { width: 30px; height: 30px; border-radius: 50%; object-fit: cover; vertical-align: middle; }
.avatar-initials { display: inline-grid; place-items: center; background: var(--accent); color: var(--accent-ink); font: 700 .75rem/1 var(--sans); }
.masthead nav .nav-me { padding: 0; display: inline-flex; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.ed-who .avatar { width: 26px; height: 26px; margin-right: 6px; border: 1px solid rgba(255,255,255,.5); }