/* AI News — builds on site.css tokens. Signature move: the receipts rail.
   Each numbered marker in the article links to its source; the byline meter counts
   the sources you have actually passed while reading. */
.news-index .page-hero, .news-article .art-head{padding-top:130px}
.n-rss{font-family:var(--mono);font-size:.82rem;color:var(--grey);margin-top:18px}
.n-rss a{color:var(--blue-bright)}
.n-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding-bottom:96px}
.n-card a{display:block;color:inherit;text-decoration:none;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--panel);height:100%;transition:border-color .2s,transform .2s}
.n-card a:hover,.n-card a:focus-visible{border-color:var(--blue);transform:translateY(-2px)}
.n-card img{display:block;width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;border-bottom:1px solid var(--line)}
.n-card .n-meta,.n-card h2,.n-card p{padding:0 22px}
.n-card .n-meta{font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--blue-bright);margin:18px 0 8px;display:flex;gap:12px}
.n-card .n-meta time{color:var(--grey)}
.n-card h2{font-family:var(--display);font-size:1.3rem;line-height:1.2;margin:0 0 10px}
.n-card p{color:var(--grey);line-height:1.55;margin:0 0 12px}
.n-card .n-src{font-family:var(--mono);font-size:.74rem;color:var(--grey);padding-bottom:20px;margin:0}
.n-card.lead{grid-column:1/-1}
.n-card.lead a{display:grid;grid-template-columns:1.25fr 1fr;align-items:center}
.n-card.lead img{border-bottom:0;border-right:1px solid var(--line);height:100%}
.n-card.lead h2{font-size:clamp(1.5rem,2.6vw,2.1rem)}

.art-head{max-width:860px}
.crumbs{font-family:var(--mono);font-size:.78rem;color:var(--grey);text-transform:uppercase;letter-spacing:.06em}
.crumbs a{color:var(--blue-bright)}
.art-head h1{font-family:var(--display);font-size:clamp(2rem,4.4vw,3.2rem);line-height:1.08;letter-spacing:-.02em;margin:14px 0 16px}
.byline{display:flex;flex-wrap:wrap;gap:8px 20px;font-family:var(--mono);font-size:.8rem;color:var(--grey);margin:22px 0 8px;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.byline a{color:var(--white)}
.meter{color:var(--blue-bright)}
.meter-n{font-weight:700;color:var(--white)}
.art-grid{display:grid;grid-template-columns:minmax(0,68ch) minmax(260px,1fr);gap:56px;align-items:start;padding-top:28px;padding-bottom:40px}
.art-body{font-size:1.08rem;line-height:1.7}
.art-body p{margin:0 0 1.15em}
.art-body h2{font-family:var(--display);font-size:1.45rem;margin:1.8em 0 .6em}
.art-body ul{margin:0 0 1.2em;padding-left:1.2em}
.art-body li{margin-bottom:.5em}
.rcpt{display:inline-grid;place-items:center;min-width:1.45em;height:1.45em;margin-left:.2em;padding:0 .3em;border:1px solid var(--blue);border-radius:3px;font-family:var(--mono);font-size:.7em;font-weight:700;color:var(--blue-bright);text-decoration:none;vertical-align:.25em;transition:background .15s,color .15s}
.rcpt:hover,.rcpt:focus-visible,.rcpt.on{background:var(--blue);color:#fff}
.todo{margin-top:2.4em;padding:24px 26px;border:1px solid var(--line);border-left:3px solid var(--blue);background:var(--panel);border-radius:4px}
.todo h2{margin-top:.2em}
.receipts{position:sticky;top:96px;max-height:calc(100vh - 120px);overflow:auto;padding:4px 4px 4px 22px;border-left:1px solid var(--line)}
.receipts ol{list-style:none;margin:12px 0 0;padding:0}
.src{display:grid;grid-template-columns:28px 1fr;gap:10px;padding:12px 0;border-bottom:1px solid var(--line);opacity:.55;transition:opacity .25s}
.src.seen,.src:target,.src.on{opacity:1}
.src:target,.src.on{background:rgba(47,128,237,.08)}
.src-n{font-family:var(--mono);font-weight:700;color:var(--blue-bright)}
.src a{color:var(--white);font-weight:600;line-height:1.35}
.src-meta{display:block;font-family:var(--mono);font-size:.7rem;color:var(--grey);margin:4px 0 6px}
.src-meta b{color:var(--blue-bright);font-weight:600}
.src q{display:block;font-size:.86rem;color:var(--grey);line-height:1.45}
.rcpt-note{font-size:.82rem;color:var(--grey);margin-top:14px}
.rcpt-note a{color:var(--blue-bright)}
.art-cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;padding:28px 0 96px;border-top:1px solid var(--line)}
.art-cta p{margin:0;color:var(--grey);max-width:60ch}
.standards{max-width:72ch;padding-bottom:96px;font-size:1.05rem;line-height:1.7}
.standards h2{font-family:var(--display);margin:1.6em 0 .5em}
@media (max-width:900px){
  .n-grid{grid-template-columns:1fr}
  .n-card.lead a{display:block}
  .n-card.lead img{border-right:0;border-bottom:1px solid var(--line);height:auto}
  .art-grid{grid-template-columns:1fr;gap:32px}
  .receipts{position:static;max-height:none;border-left:0;padding-left:0;border-top:1px solid var(--line)}
  .src{opacity:1}
}
@media (prefers-reduced-motion:reduce){
  .n-card a,.src,.rcpt{transition:none}
  .n-card a:hover{transform:none}
  .src{opacity:1}
}
/* page-hero and section reset horizontal padding; restore the container gutter */
.news-index .page-hero.container,.n-grid.container,.art-head.container,.art-grid.container,.art-cta.container,main.standards{padding-left:24px;padding-right:24px}
.n-grid.container{padding-top:0}
main.standards .page-hero{padding-left:0;padding-right:0}
/* answer-first lead, key facts, related + topic hubs (auto news, 10/16) */
.answer{font-size:1.12em;line-height:1.55;padding:18px 22px;border-left:3px solid var(--blue);background:var(--panel);border-radius:4px;margin:0 0 1.4em}
.keyfacts{margin:0 0 1.8em;padding:18px 24px;border:1px solid var(--line);border-radius:4px}
.keyfacts h2{margin-top:.1em;font-size:1.05em;letter-spacing:.04em;text-transform:uppercase}
.keyfacts ul{margin:.4em 0 0;padding-left:1.1em}
.related{margin-top:2.6em;padding-top:1.4em;border-top:1px solid var(--line)}
.related ul{padding-left:1.1em}.related li{margin:.45em 0}
.hubs{margin-top:1em;color:var(--grey,#93A3B8)}
.n-list ul{list-style:none;padding:0}.n-list li{padding:14px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:20px}