:root{
  color-scheme: dark;
  --bg:#09100e; --bg2:#0d1714; --panel:#101c18; --panel2:#15231f;
  --text:#edf7f1; --muted:#a9bbb2; --line:#294137;
  --green:#a7f3d0; --green2:#69d5a5; --lilac:#c4b5fd; --lilac2:#9f8cf0;
  --amber:#f1d59a; --red:#f2aaa8; --blue:#a9d7f7;
  --shadow:0 18px 55px rgba(0,0,0,.28);
  --radius:20px; --max:1180px;
}
html[data-theme="light"]{
  color-scheme:light; --bg:#f5faf7; --bg2:#eaf3ee; --panel:#ffffff; --panel2:#f1f7f3;
  --text:#16231d; --muted:#52655b; --line:#cadbd2; --green:#176849; --green2:#23815d;
  --lilac:#624fa8; --lilac2:#755bc2; --amber:#765312; --red:#8a3a38; --blue:#225e83;
  --shadow:0 18px 55px rgba(28,55,42,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:
radial-gradient(circle at 8% 0%,rgba(167,243,208,.08),transparent 30rem),
radial-gradient(circle at 92% 8%,rgba(196,181,253,.08),transparent 28rem),
var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.68}
a{color:var(--green);text-underline-offset:.22em}
a:hover{color:var(--lilac)}
img,svg{max-width:100%;height:auto}
.skip-link{position:absolute;left:-999px;top:0;background:var(--green);color:#08100d;padding:.7rem 1rem;z-index:100}
.skip-link:focus{left:.75rem;top:.75rem}
.site-header{position:sticky;top:0;z-index:30;background:rgba(9,16,14,.88);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
html[data-theme="light"] .site-header{background:rgba(245,250,247,.9)}
.header-inner{max-width:var(--max);margin:auto;padding:.78rem 1rem;display:flex;align-items:center;gap:1rem}
.brand{display:flex;align-items:center;gap:.7rem;color:var(--text);text-decoration:none;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.brand-mark{width:1.1rem;height:1.1rem;border:2px solid var(--green);border-radius:50%;box-shadow:inset 0 0 0 3px var(--bg),0 0 0 1px var(--lilac)}
.nav-toggle,.theme-toggle{border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:999px;padding:.48rem .72rem;cursor:pointer}
.nav-toggle{display:none}
nav{margin-left:auto}
nav ul{display:flex;gap:.15rem;list-style:none;margin:0;padding:0;flex-wrap:wrap;justify-content:flex-end}
nav a{display:block;padding:.46rem .62rem;border-radius:999px;color:var(--muted);text-decoration:none;font-size:.88rem}
nav a:hover,nav a[aria-current="page"]{background:var(--panel2);color:var(--text)}
.theme-toggle{margin-left:.15rem}
main{max-width:var(--max);margin:auto;padding:0 1rem 5rem}
.hero{padding:5.6rem 0 3rem;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);gap:2rem;align-items:end}
.eyebrow{font-size:.78rem;text-transform:uppercase;letter-spacing:.16em;color:var(--green);font-weight:800}
h1,h2,h3{line-height:1.12;letter-spacing:-.025em;text-wrap:balance}
h1{font-size:clamp(2.65rem,7vw,6.25rem);margin:.35rem 0 1rem;max-width:14ch}
h2{font-size:clamp(1.7rem,3vw,2.75rem);margin:3.2rem 0 1rem}
h3{font-size:1.28rem;margin:2.2rem 0 .7rem}
.lede{font-size:clamp(1.1rem,2vw,1.36rem);color:var(--muted);max-width:75ch}
.hero-note,.panel,.card,.callout,.case,.metric,.toc{border:1px solid var(--line);background:linear-gradient(145deg,var(--panel),var(--panel2));border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-note{padding:1.25rem}
.hero-note strong{color:var(--lilac)}
.meta-row{display:flex;gap:.5rem;flex-wrap:wrap;margin:1rem 0}
.pill,.status{display:inline-flex;align-items:center;gap:.35rem;border:1px solid var(--line);border-radius:999px;padding:.28rem .62rem;color:var(--muted);font-size:.78rem;background:rgba(255,255,255,.02)}
.status::before{content:"";width:.52rem;height:.52rem;border-radius:50%;background:currentColor}
.status.fact{color:var(--green)} .status.indicator{color:var(--blue)} .status.hypothesis{color:var(--lilac)} .status.contested{color:var(--amber)}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:1rem}
.card{grid-column:span 4;padding:1.2rem}
.card h3{margin-top:.2rem}.card p{color:var(--muted)}
.card a.stretch{display:inline-block;margin-top:.3rem;font-weight:750;text-decoration:none}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin:1.5rem 0}
.metric{padding:1.1rem}
.metric .value{font-size:clamp(1.8rem,4vw,3rem);font-weight:850;line-height:1;color:var(--green)}
.metric .label{margin-top:.5rem;color:var(--muted);font-size:.9rem}
.metric small{display:block;margin-top:.55rem;color:var(--muted)}
.section-intro{max-width:78ch;color:var(--muted);font-size:1.04rem}
.prose{max-width:84ch}
.prose p{margin:0 0 1.12rem}
.prose li{margin:.4rem 0}
.callout{padding:1.1rem 1.2rem;margin:1.5rem 0;border-left:4px solid var(--lilac)}
.callout.warning{border-left-color:var(--amber)}
.callout.good{border-left-color:var(--green)}
.callout h3{margin:.1rem 0 .5rem}
.toc{padding:1.1rem 1.3rem;margin:1.5rem 0 2rem}
.toc ul{columns:2;gap:2rem;margin:.7rem 0 0;padding-left:1.1rem}
.toc a{text-decoration:none}
table{width:100%;border-collapse:collapse;margin:1.35rem 0;background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;display:block}
thead,tbody,tr{width:100%}
th,td{padding:.8rem .9rem;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
th{color:var(--lilac);font-size:.86rem;text-transform:uppercase;letter-spacing:.05em}
td{color:var(--muted)}
tr:last-child td{border-bottom:0}
.source-link{font-size:.86em;text-decoration-thickness:1px}
.citation-list{padding-left:1.3rem}
.citation-list li{margin:.68rem 0;color:var(--muted)}
.case{padding:1.25rem;margin:1rem 0}
.case header{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.case h3{margin:.1rem 0}
.case .case-meta{font-size:.82rem;color:var(--muted)}
.legend{display:flex;gap:.6rem;flex-wrap:wrap;margin:1rem 0}
figure.diagram{margin:1.5rem 0;padding:1rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:.65rem;align-items:stretch}
.flow .step{padding:.9rem;border:1px solid var(--line);border-radius:14px;background:var(--bg2);position:relative}
.flow .step:not(:last-child)::after{content:"→";position:absolute;right:-.6rem;top:50%;transform:translate(50%,-50%);color:var(--lilac);font-weight:900;z-index:2}
.kicker{font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.12em;color:var(--lilac)}
blockquote{border-left:3px solid var(--green);margin:1.4rem 0;padding:.2rem 0 .2rem 1rem;color:var(--muted)}
details{border:1px solid var(--line);border-radius:14px;padding:.8rem 1rem;margin:.7rem 0;background:var(--panel)}
summary{cursor:pointer;font-weight:750;color:var(--text)}
.glossary dt{font-weight:850;color:var(--lilac);margin-top:1.2rem}
.glossary dd{margin:.3rem 0 0;color:var(--muted);max-width:80ch}
.source-corpus{font-size:.82rem;word-break:break-word}
.source-corpus li{margin:.45rem 0}
footer{border-top:1px solid var(--line);background:var(--bg2)}
.footer-inner{max-width:var(--max);margin:auto;padding:2.2rem 1rem;color:var(--muted);display:grid;grid-template-columns:2fr 1fr;gap:2rem}
.footer-inner a{color:var(--muted)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:920px){
 .hero{grid-template-columns:1fr;padding-top:3.8rem}
 .metric-grid{grid-template-columns:repeat(2,1fr)}
 .card{grid-column:span 6}
 .nav-toggle{display:inline-block;margin-left:auto}
 nav{position:absolute;left:1rem;right:1rem;top:100%;display:none;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:.7rem;box-shadow:var(--shadow)}
 nav.open{display:block}
 nav ul{display:grid;grid-template-columns:1fr 1fr}
 .theme-toggle{margin-left:0}
 .flow{grid-template-columns:1fr}
 .flow .step:not(:last-child)::after{content:"↓";right:50%;top:auto;bottom:-.62rem;transform:translate(50%,50%)}
}
@media(max-width:620px){
 h1{font-size:2.7rem}
 .card{grid-column:1/-1}.metric-grid{grid-template-columns:1fr}
 .toc ul{columns:1}.footer-inner{grid-template-columns:1fr}
 nav ul{grid-template-columns:1fr}
 table{font-size:.9rem}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
@media print{
 .site-header,.theme-toggle,.nav-toggle,footer{display:none!important}
 body{background:white;color:#111;font:11pt Georgia,serif}
 main{max-width:none;padding:0}
 a{color:#111}
 a[href^="http"]::after{content:" (" attr(href) ")";font-size:8pt;word-break:break-all}
 .panel,.card,.callout,.case,.metric,.toc,figure.diagram{box-shadow:none;border:1px solid #bbb;background:white}
}