/* MJB Guidebook — framework-free stylesheet. Themes via [data-theme]. */
/* Layout: field-guide reading column + instrument rail; depth dial as the page's regulator.
   Palette: lab-notebook grey paper, record-ink navy, signal amber for actions, claim colours by evidence type. */
:root{
  --serif: "Newsreader","Iowan Old Style","Palatino Linotype",Georgia,serif;
  --sans: "IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono: "IBM Plex Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --bg:#f1f3f1; --surface:#fbfcfb; --surface2:#e6eae7; --ink:#18212b; --muted:#56606b; --line:#cfd6d2;
  --accent:#1d4f7a; --accent-ink:#ffffff; --hot:#b85a12; --focus:#d17a00;
  --l-guidance:#1f6f5c; --l-research:#1d4f7a; --l-institution:#6b4e16; --l-patient:#7a3b6e;
  --l-hypothesis:#7a5c00; --l-contested:#a33a2b; --l-missing:#5d6470; --l-finding:#18212b;
  --e-action:#b85a12; --e-related:#1d4f7a; --e-deeper:#1f6f5c;
  --radius:10px; --shadow:0 1px 2px rgba(10,20,30,.06),0 6px 24px rgba(10,20,30,.07);
  --measure:44rem; color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#11161b; --surface:#171d23; --surface2:#1f262e; --ink:#e6eaee; --muted:#9fa8b2; --line:#2c353f;
  --accent:#86b6e6; --accent-ink:#0b1117; --hot:#f0a35e; --focus:#ffb454;
  --l-guidance:#5fc9a8; --l-research:#86b6e6; --l-institution:#d9b46a; --l-patient:#d892c8;
  --l-hypothesis:#e6c75a; --l-contested:#ff8b78; --l-missing:#9fa8b2; --l-finding:#e6eaee;
  --e-action:#f0a35e; --e-related:#86b6e6; --e-deeper:#5fc9a8; color-scheme:dark; --shadow:none}}
:root[data-theme="dark"],:root[data-theme="ink"]{
  --bg:#11161b; --surface:#171d23; --surface2:#1f262e; --ink:#e6eaee; --muted:#9fa8b2; --line:#2c353f;
  --accent:#86b6e6; --accent-ink:#0b1117; --hot:#f0a35e; --focus:#ffb454;
  --l-guidance:#5fc9a8; --l-research:#86b6e6; --l-institution:#d9b46a; --l-patient:#d892c8;
  --l-hypothesis:#e6c75a; --l-contested:#ff8b78; --l-missing:#9fa8b2; --l-finding:#e6eaee;
  --e-action:#f0a35e; --e-related:#86b6e6; --e-deeper:#5fc9a8; color-scheme:dark; --shadow:none}
:root[data-theme="paper"]{
  --bg:#f1f3f1; --surface:#fbfcfb; --surface2:#e6eae7; --ink:#18212b; --muted:#56606b; --line:#cfd6d2;
  --accent:#1d4f7a; --accent-ink:#ffffff; --hot:#b85a12; --focus:#d17a00;
  --l-guidance:#1f6f5c; --l-research:#1d4f7a; --l-institution:#6b4e16; --l-patient:#7a3b6e;
  --l-hypothesis:#7a5c00; --l-contested:#a33a2b; --l-missing:#5d6470; --l-finding:#18212b;
  --e-action:#b85a12; --e-related:#1d4f7a; --e-deeper:#1f6f5c; color-scheme:light}
:root[data-theme="terminal"]{
  --serif: var(--mono); --bg:#050806; --surface:#0a110c; --surface2:#0f1a13; --ink:#c9f5d6; --muted:#7fb592; --line:#1f3a2a;
  --accent:#57f28d; --accent-ink:#04110a; --hot:#ffcc4d; --focus:#ffcc4d;
  --l-guidance:#57f28d; --l-research:#6fd3ff; --l-institution:#ffcc4d; --l-patient:#ff9ee0;
  --l-hypothesis:#e8f06a; --l-contested:#ff7a6b; --l-missing:#8aa294; --l-finding:#ffffff;
  --e-action:#ffcc4d; --e-related:#6fd3ff; --e-deeper:#57f28d; color-scheme:dark; --shadow:none}
:root[data-theme="contrast"]{
  --bg:#ffffff; --surface:#ffffff; --surface2:#f0f0f0; --ink:#000; --muted:#222; --line:#000;
  --accent:#00008b; --accent-ink:#fff; --hot:#8b2500; --focus:#ff8c00;
  --l-guidance:#004d00; --l-research:#00008b; --l-institution:#5a3a00; --l-patient:#5c005c;
  --l-hypothesis:#5a4a00; --l-contested:#8b0000; --l-missing:#333; --l-finding:#000;
  --e-action:#8b2500; --e-related:#00008b; --e-deeper:#004d00; --shadow:none; color-scheme:light}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-padding-top:7rem}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.0625rem/1.65 var(--sans)}
a{color:var(--accent);text-underline-offset:.18em}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:4px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--accent-ink);padding:.5rem 1rem;z-index:99}
.skip:focus{left:.5rem}
button{font:inherit;color:inherit}
kbd{font:600 .7rem var(--mono);border:1px solid var(--line);border-radius:4px;padding:0 .3rem;color:var(--muted)}

/* top bar */
.topbar{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;display:flex;align-items:center;gap:1rem;justify-content:space-between;padding:.6rem max(1rem,env(safe-area-inset-left));background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.brand{white-space:nowrap;display:flex;align-items:baseline;gap:.5rem;text-decoration:none;color:var(--ink)}
.brand-mark{width:.9rem;height:.9rem;border-radius:3px;background:linear-gradient(135deg,var(--accent),var(--hot));align-self:center}
.brand-name{font:700 1.05rem var(--serif);letter-spacing:.01em}
.brand-sub{font:500 .78rem var(--mono);color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.topnav{display:flex;gap:.35rem;align-items:center}
.tb{display:flex;align-items:center;gap:.4rem;background:none;border:1px solid transparent;border-radius:8px;padding:.35rem .55rem;cursor:pointer;color:var(--ink)}
.tb:hover{border-color:var(--line);background:var(--surface)}
.ico{width:1rem;height:1rem;display:inline-block;background:currentColor;-webkit-mask:var(--m) center/contain no-repeat;mask:var(--m) center/contain no-repeat}
.ico-search{--m:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2.4"><circle cx="10" cy="10" r="6.5"/><path d="M15 15l6 6"/></svg>')}
.ico-atlas{--m:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2.2"><circle cx="5" cy="6" r="2.5"/><circle cx="19" cy="6" r="2.5"/><circle cx="12" cy="18" r="2.5"/><path d="M7 7l4 9M17 7l-4 9M7.5 6h9"/></svg>')}
.ico-path{--m:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2.2"><circle cx="5" cy="19" r="2"/><circle cx="19" cy="5" r="2"/><path d="M7 19h6a4 4 0 0 0 0-8h-2a4 4 0 0 1 0-8h6"/></svg>')}
.theme-pick select{font:500 .85rem var(--sans);background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:.3rem .4rem}
@media (max-width:640px){.tb-l,.tb kbd,.brand-sub{display:none}.topbar{position:static;flex-wrap:wrap;gap:.5rem}.topnav{width:100%;justify-content:space-between}}

/* layout */
.layout{max-width:78rem;margin:0 auto;padding:1.25rem max(1rem,env(safe-area-inset-left)) 3rem;display:grid;grid-template-columns:minmax(0,1fr) 19rem;gap:2.5rem}
.layout.wide{grid-template-columns:minmax(0,1fr)}
@media (max-width:1000px){.layout{grid-template-columns:minmax(0,1fr)}}
main{min-width:0;outline:none}
main:focus,main:focus-visible{outline:none}
.rail{min-width:0;position:sticky;top:4.2rem;align-self:start;max-height:calc(100vh - 5rem);overflow:auto;display:flex;flex-direction:column;gap:1rem;padding-bottom:1rem}
@media (max-width:1000px){.rail{position:static;max-height:none;overflow:visible;border-top:1px solid var(--line);padding-top:1.25rem}}
.layout.wide .rail{display:none}

.foot{max-width:78rem;margin:0 auto;padding:1.5rem 1rem 3rem;color:var(--muted);font-size:.85rem;border-top:1px solid var(--line)}

/* article */
.crumbs{font:500 .82rem var(--sans);color:var(--muted);display:flex;flex-wrap:wrap;gap:.35rem;align-items:center;margin:0 0 .5rem}
.crumbs a{color:var(--muted)} .crumbs .sep{opacity:.5}
.ent-tag{font:600 .7rem var(--mono);text-transform:uppercase;letter-spacing:.08em;padding:.12rem .45rem;border-radius:99px;border:1px solid currentColor}
h1.title{text-wrap:balance;font:600 clamp(1.9rem,4.4vw,2.7rem)/1.12 var(--serif);margin:.2rem 0 .6rem;letter-spacing:-.01em;max-width:var(--measure)}
.lede{font:400 1.2rem/1.55 var(--serif);color:var(--ink);max-width:var(--measure);margin:0 0 1rem}
.meta{display:flex;flex-wrap:wrap;gap:.4rem .9rem;font:500 .8rem var(--mono);color:var(--muted);margin-bottom:1.1rem}
.meta b{color:var(--ink);font-weight:600}
.status{padding:.08rem .45rem;border-radius:4px;background:var(--surface2)}
.prose{max-width:var(--measure)}
.prose p,.prose li{font-family:var(--serif);font-size:1.08rem}
.prose h3{font:600 1.15rem var(--sans);margin:1.6rem 0 .4rem}
.prose h4{font:600 1rem var(--sans);margin:1.2rem 0 .3rem;color:var(--muted)}
.prose ul,.prose ol{padding-left:1.3rem}
.prose li{margin:.25rem 0}
.prose li.check{list-style:none;margin-left:-1.3rem}
.prose li.check input{width:1.05rem;height:1.05rem;accent-color:var(--accent);vertical-align:-2px}
.prose blockquote{margin:1rem 0;padding:.4rem 1rem;border-left:3px solid var(--accent);background:var(--surface);border-radius:0 var(--radius) var(--radius) 0}
.prose code{font:.9em var(--mono);background:var(--surface2);padding:.05rem .3rem;border-radius:4px}
.tablewrap{overflow-x:auto;margin:1rem 0;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.prose table{border-collapse:collapse;width:100%;font:400 .92rem/1.45 var(--sans)}
.prose th,.prose td{padding:.55rem .7rem;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
.prose thead th{font-weight:650;background:var(--surface2)}
.prose tbody th{font-weight:600}
.callout{margin:1.1rem 0;padding:.8rem 1rem;border-radius:var(--radius);border:1px solid var(--line);background:var(--surface)}
.callout>b{display:block;font:650 .95rem var(--sans);margin-bottom:.2rem}
.callout p{margin:.35rem 0}
.callout-warn{border-left:4px solid var(--hot)} .callout-key{border-left:4px solid var(--accent)} .callout-ask{border-left:4px solid var(--e-deeper)} .callout-note{border-left:4px solid var(--muted)}

/* claims */
.claim{position:relative;margin:1.1rem 0;padding:.15rem 0 .15rem 1rem;border-left:3px solid var(--lc,var(--muted))}
.claim p{margin:.3rem 0}
.claim .refs{display:inline-flex;flex-wrap:wrap;gap:.25rem}
.chip{display:inline-flex;gap:.35rem;align-items:center;font:650 .68rem/1 var(--mono);text-transform:uppercase;letter-spacing:.07em;color:var(--lc);background:color-mix(in srgb,var(--lc) 10%,transparent);border:1px solid color-mix(in srgb,var(--lc) 45%,transparent);border-radius:99px;padding:.3rem .55rem;cursor:pointer}
.chip i{font-style:normal;font-weight:500;opacity:.8;border-left:1px solid currentColor;padding-left:.35rem}
.chip:hover{background:color-mix(in srgb,var(--lc) 18%,transparent)}
[data-label="guidance"]{--lc:var(--l-guidance)} [data-label="research"]{--lc:var(--l-research)} [data-label="institution"]{--lc:var(--l-institution)}
[data-label="patient"]{--lc:var(--l-patient)} [data-label="hypothesis"]{--lc:var(--l-hypothesis)} [data-label="contested"]{--lc:var(--l-contested)}
[data-label="missing"]{--lc:var(--l-missing)} [data-label="finding"]{--lc:var(--l-finding)}
.claim[data-label="hypothesis"]{border-left-style:dotted} .claim[data-label="contested"]{border-left-style:dashed} .claim[data-label="missing"]{border-left-style:double;border-left-width:4px}
.ref{font:600 .7rem var(--mono);border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:5px;padding:.05rem .32rem;cursor:pointer;margin-left:.15rem}
.ref:hover{color:var(--accent);border-color:var(--accent)}
.labels-off .chip{display:none} .labels-off .claim{border-left-color:transparent;padding-left:0}

/* depth dial — the "regulator" */
.dial{position:sticky;top:3.8rem;z-index:20;margin:0 0 1.2rem;padding:.55rem 0;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.dial-row{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap}
.dial-l{font:600 .72rem var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.steps{display:flex;gap:3px;flex:1;min-width:14rem}
.step{flex:1;min-width:0;border:1px solid var(--line);background:var(--surface);border-radius:6px;padding:.32rem .35rem;cursor:pointer;text-align:left;font:500 .72rem/1.15 var(--sans);color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.step b{font:700 .72rem var(--mono);margin-right:.2rem}
.step.on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.step.seen:not(.on){border-color:var(--accent);color:var(--ink)}
.step[disabled]{opacity:.35;cursor:default}
@media (max-width:640px){.step span{display:none}.step{text-align:center}.dial{top:0}}
.dial-x{display:flex;gap:.4rem}
.mini{font:600 .72rem var(--sans);background:none;border:1px solid var(--line);border-radius:6px;padding:.3rem .5rem;cursor:pointer;color:var(--muted)}
.mini:hover,.mini[aria-pressed="true"]{color:var(--ink);border-color:var(--ink)}

.layer{margin:0 0 1.6rem;max-width:var(--measure)}
.layer-h{display:flex;align-items:baseline;gap:.6rem;margin:1.8rem 0 .4rem;font:650 1.32rem/1.25 var(--sans)}
.layer-h .n{font:700 .78rem var(--mono);color:var(--accent-ink);background:var(--accent);border-radius:5px;padding:.12rem .4rem;transform:translateY(-.15rem)}
.layer.enter{animation:rise .35s ease both}
@keyframes rise{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.layer.enter{animation:none}*{scroll-behavior:auto!important}}
.continue{display:grid;gap:.5rem;max-width:var(--measure);margin:1.2rem 0 2rem}
.cont{display:flex;align-items:center;gap:.75rem;width:100%;text-align:left;border:1px dashed var(--line);background:var(--surface);border-radius:var(--radius);padding:.7rem .9rem;cursor:pointer}
.cont:hover{border-style:solid;border-color:var(--accent)}
.cont .n{font:700 .78rem var(--mono);color:var(--muted);border:1px solid var(--line);border-radius:5px;padding:.08rem .35rem}
.cont .t{font:600 .98rem var(--sans)} .cont .h{font:.85rem var(--sans);color:var(--muted);margin-left:auto}
.cont:first-child{border-style:solid;border-color:var(--accent)} .cont:first-child .n{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}

.endpoint{max-width:var(--measure);margin:1.5rem 0;padding:1rem 1.1rem;border-radius:var(--radius);border:2px solid var(--e-action);background:color-mix(in srgb,var(--e-action) 7%,var(--surface))}
.endpoint h2{margin:0 0 .3rem;font:700 1rem var(--sans)}
.tail{max-width:var(--measure);display:grid;gap:1rem;margin-top:1.5rem}
.tail section{border:1px solid var(--line);border-radius:var(--radius);padding:.8rem 1rem;background:var(--surface)}
.tail h2{font:650 .95rem var(--sans);margin:0 0 .3rem;display:flex;gap:.5rem;align-items:center}
.tail p,.tail li{font-size:.98rem}

.onward{max-width:var(--measure);display:grid;grid-template-columns:repeat(auto-fit,minmax(13rem,1fr));gap:.6rem;margin:1.6rem 0}
.ow{display:block;text-decoration:none;color:var(--ink);border:1px solid var(--line);border-top:4px solid var(--ec);border-radius:var(--radius);padding:.7rem .85rem;background:var(--surface)}
.ow:hover{box-shadow:var(--shadow);border-color:var(--ec)}
.ow small{display:block;font:650 .68rem var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--ec)}
.ow b{font:600 1rem var(--sans)} .ow span{display:block;font-size:.85rem;color:var(--muted);margin-top:.2rem}
.e-action{--ec:var(--e-action)} .e-related{--ec:var(--e-related)} .e-deeper{--ec:var(--e-deeper)}

/* rail cards */
.card{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:.75rem .85rem}
.card h2{font:650 .72rem var(--mono);text-transform:uppercase;letter-spacing:.09em;color:var(--muted);margin:0 0 .5rem}
.card ul{list-style:none;padding:0;margin:0;display:grid;gap:.3rem}
.card li a{text-decoration:none} .card li a:hover{text-decoration:underline}
.card .sub{font-size:.78rem;color:var(--muted)}
.trail{display:flex;flex-wrap:wrap;gap:.25rem;font-size:.82rem}
.trail a{padding:.1rem .4rem;border-radius:5px;background:var(--surface2);text-decoration:none;color:var(--ink)}
.trail .arrow{color:var(--muted)}
.minimap svg{width:100%;height:auto;display:block}
.minimap a text{font:600 10.5px var(--sans);fill:var(--ink)}
.minimap .me circle{fill:var(--accent)} .minimap .me text{fill:var(--accent-ink);font-weight:700}
.legend{display:flex;flex-wrap:wrap;gap:.3rem .7rem;font:.72rem var(--sans);color:var(--muted);margin-top:.4rem}
.legend i{display:inline-block;width:.9rem;height:2px;vertical-align:middle;margin-right:.25rem;background:currentColor}

/* home */
.hero{max-width:52rem;margin:1rem 0 1.5rem}
.hero h1{text-wrap:balance;font:600 clamp(2.1rem,5.5vw,3.4rem)/1.05 var(--serif);margin:0 0 .7rem;letter-spacing:-.015em}
.hero p{font:400 1.2rem/1.55 var(--serif);color:var(--muted);margin:0}
.entrances{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:.9rem;margin:1.5rem 0}
.ent{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:1rem 1.05rem;text-decoration:none;color:var(--ink);position:relative;overflow:hidden}
.ent::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--ec2)}
.ent:hover{box-shadow:var(--shadow);border-color:var(--ec2)}
.ent .q{font:500 .78rem var(--mono);color:var(--ec2);text-transform:uppercase;letter-spacing:.06em}
.ent h2{font:600 1.3rem/1.2 var(--serif);margin:.3rem 0 .4rem}
.ent p{margin:0 0 .6rem;color:var(--muted);font-size:.93rem}
.ent ol{margin:auto 0 0;padding-left:1.1rem;font-size:.86rem;color:var(--ink)}
.ent ol li{margin:.1rem 0}
.ent-understand{--ec2:#7a3b6e}.ent-treatment{--ec2:var(--accent)}.ent-care{--ec2:var(--hot)}.ent-evidence{--ec2:var(--l-guidance)}.ent-accountability{--ec2:var(--l-contested)}.ent-about{--ec2:var(--muted)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .ent-understand{--ec2:#d892c8}}
:root[data-theme="dark"] .ent-understand,:root[data-theme="ink"] .ent-understand{--ec2:#d892c8}
:root[data-theme="terminal"] .ent-understand{--ec2:#ff9ee0}
.shortcut{display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between;border:2px solid var(--hot);border-radius:14px;padding:1rem 1.1rem;background:color-mix(in srgb,var(--hot) 6%,var(--surface));margin:1.5rem 0}
.shortcut b{font:650 1.05rem var(--sans)} .shortcut p{margin:.2rem 0 0;color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:.4rem;font:650 .92rem var(--sans);background:var(--accent);color:var(--accent-ink);border:0;border-radius:9px;padding:.6rem .95rem;text-decoration:none;cursor:pointer}
.btn.alt{background:none;color:var(--ink);border:1px solid var(--line)}
.howto{display:grid;grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:.8rem;margin:1.5rem 0}
.howto div{border-top:2px solid var(--line);padding-top:.6rem}
.howto b{font:650 .95rem var(--sans)} .howto p{margin:.25rem 0 0;font-size:.9rem;color:var(--muted)}

/* atlas */
.atlas-wrap{border:1px solid var(--line);border-radius:14px;background:var(--surface);overflow:auto}
.atlas svg{display:block;min-width:900px;width:100%;height:auto}
.atlas .node rect{fill:var(--surface);stroke:var(--line);stroke-width:1.2}
.atlas .node text{font:600 11px var(--sans);fill:var(--ink)}
.atlas .node .pr{font:700 9px var(--mono);fill:var(--muted)}
.atlas .node:hover rect,.atlas .node:focus rect{stroke:var(--accent);stroke-width:2.5}
.atlas .node.hub rect{fill:var(--surface2)}
.atlas .node.endp rect{stroke:var(--e-action);stroke-width:2}
.atlas .edge{fill:none;stroke:var(--line);stroke-width:1.1;opacity:.6;transition:opacity .15s}
.atlas.focus .edge{opacity:.08} .atlas.focus .edge.hl{opacity:1;stroke:var(--accent);stroke-width:2}
.atlas.focus .node{opacity:.35} .atlas.focus .node.hl{opacity:1}
.atlas .lane{font:700 11px var(--mono);fill:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.atlas-list{columns:16rem;column-gap:1.5rem;margin-top:1rem}
.atlas-list section{break-inside:avoid;margin-bottom:1rem}
.atlas-list h3{font:650 .8rem var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0 0 .3rem}
.atlas-list ol{margin:0;padding-left:1.2rem;font-size:.92rem}

/* drawer + overlay */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:40}
.drawer{position:fixed;z-index:50;right:0;top:0;bottom:0;width:min(30rem,100vw);background:var(--surface);border-left:1px solid var(--line);box-shadow:-10px 0 40px rgba(0,0,0,.18);display:flex;flex-direction:column}
.drawer header{display:flex;align-items:center;justify-content:space-between;padding:.8rem 1rem;border-bottom:1px solid var(--line)}
.drawer h2{font:650 1rem var(--sans);margin:0}
.drawer .body{padding:1rem;overflow:auto;flex:1}
.x{background:none;border:1px solid var(--line);border-radius:8px;width:2.1rem;height:2.1rem;cursor:pointer;font-size:1.1rem}
.src{border:1px solid var(--line);border-radius:var(--radius);padding:.7rem .85rem;margin:0 0 .7rem;background:var(--bg)}
.src .id{font:700 .75rem var(--mono);color:var(--accent)}
.src .ty{font:600 .68rem var(--mono);text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-left:.4rem}
.src p{margin:.3rem 0;font-size:.92rem}
.src .acc{font-size:.8rem;color:var(--muted)}
.src.flash{animation:flash 1.2s ease}
@keyframes flash{0%{box-shadow:0 0 0 3px var(--focus)}100%{box-shadow:none}}
.labeldef{border-left:3px solid var(--lc);padding:.2rem 0 .2rem .7rem;margin:0 0 .8rem;font-size:.92rem}

/* search */
.search{position:fixed;z-index:60;left:50%;top:9vh;transform:translateX(-50%);width:min(40rem,94vw);background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:0 20px 60px rgba(0,0,0,.3);display:flex;flex-direction:column;max-height:76vh}
.search input{font:500 1.1rem var(--sans);padding:1rem 1.1rem;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--ink);border-radius:14px 14px 0 0}
.search input:focus{outline:none}
.search ol{list-style:none;margin:0;padding:.4rem;overflow:auto}
.search li a{display:block;padding:.55rem .7rem;border-radius:8px;text-decoration:none;color:var(--ink)}
.search li a[aria-selected="true"],.search li a:hover{background:var(--surface2)}
.search li small{display:block;color:var(--muted);font-size:.82rem}
.search mark{background:color-mix(in srgb,var(--hot) 30%,transparent);color:inherit;border-radius:3px}
.search .hint{font:.75rem var(--mono);color:var(--muted);padding:.5rem 1rem;border-top:1px solid var(--line)}

/* link preview (Wikipedia-style) */
.preview{position:fixed;z-index:55;width:min(22rem,90vw);background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 40px rgba(0,0,0,.22);padding:.8rem .9rem;pointer-events:none}
.preview .pe{font:600 .66rem var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.preview b{display:block;font:650 1.02rem var(--serif);margin:.15rem 0 .3rem}
.preview p{margin:0;font-size:.9rem;color:var(--ink)}
.preview .pm{margin-top:.45rem;font:.72rem var(--mono);color:var(--muted)}
a.xl{text-decoration-style:dotted}

/* components: shared */
.cmp{margin:1.4rem 0;border:1px solid var(--line);border-radius:14px;background:var(--surface);overflow:hidden;max-width:56rem}
.cmp-h{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;justify-content:space-between;padding:.7rem .9rem;border-bottom:1px solid var(--line);background:var(--surface2)}
.cmp-h b{font:650 .95rem var(--sans)}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{border:0;background:var(--surface);padding:.3rem .6rem;font:600 .75rem var(--sans);cursor:pointer;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink)}
.cmp-body{padding:.9rem}
.cmp-note{font-size:.8rem;color:var(--muted);padding:.5rem .9rem;border-top:1px solid var(--line)}

/* mechanism ladder */
.ladder{display:grid;gap:.55rem}
.rung{display:grid;grid-template-columns:8.5rem 1fr;gap:.6rem;align-items:start}
@media (max-width:640px){.rung{grid-template-columns:1fr}}
.rung-l{font:650 .72rem var(--mono);text-transform:uppercase;letter-spacing:.07em;color:var(--muted);padding-top:.45rem}
.rung-l small{display:block;text-transform:none;letter-spacing:0;font:400 .72rem var(--sans)}
.items{display:flex;flex-wrap:wrap;gap:.4rem}
.it{border:1px solid var(--line);background:var(--bg);border-radius:8px;padding:.35rem .6rem;font:600 .82rem var(--sans);cursor:pointer;color:var(--ink);position:relative}
.it:hover{border-color:var(--accent)}
.it.sel{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.it.lit{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}
.it.dim{opacity:.3}
.it .drug{position:absolute;top:-.45rem;right:-.35rem;font:700 .6rem var(--mono);background:var(--hot);color:#fff;border-radius:4px;padding:0 .25rem}
.mech-detail{margin-top:.9rem;border-top:1px dashed var(--line);padding-top:.8rem;min-height:5rem}
.mech-detail h4{margin:0 0 .25rem;font:650 1rem var(--sans)}
.mech-detail p{margin:.25rem 0;font:1rem/1.55 var(--serif)}
.linkline{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:.5rem}
.lk{font:600 .74rem var(--sans);border-radius:6px;padding:.15rem .45rem;border:1.5px solid var(--line);background:var(--bg);cursor:pointer;color:var(--ink)}
.lk.established{border-style:solid;border-color:var(--l-research)}
.lk.association{border-style:dashed;border-color:var(--l-institution)}
.lk.hypothesis{border-style:dotted;border-color:var(--l-hypothesis)}
.lk.contested{border-style:dashed;border-color:var(--l-contested)}

/* timeline */
.tl-filters{display:flex;flex-wrap:wrap;gap:.4rem}
.tl{position:relative;display:grid;gap:.7rem}
.tl-row{display:grid;grid-template-columns:6.5rem 1fr;gap:.8rem}
@media (max-width:640px){.tl-row{grid-template-columns:1fr}}
.tl-date{font:700 .78rem var(--mono);color:var(--muted);padding-top:.7rem}
.tl-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:.5rem}
.tl-card{border:1px solid var(--line);border-left:4px solid var(--lc);border-radius:10px;padding:.55rem .7rem;background:var(--bg);font-size:.92rem}
.tl-card .who{font:650 .66rem var(--mono);text-transform:uppercase;letter-spacing:.07em;color:var(--lc)}
.tl-card p{margin:.2rem 0}
.tl-card details{margin-top:.3rem;font-size:.85rem}
.tl-card summary{cursor:pointer;color:var(--muted);font:600 .78rem var(--sans)}
.tl-card dl{display:grid;grid-template-columns:auto 1fr;gap:.15rem .6rem;margin:.4rem 0 0}
.tl-card dt{font:600 .74rem var(--sans);color:var(--muted)} .tl-card dd{margin:0}
.tl-card.dispute{background:repeating-linear-gradient(135deg,var(--bg),var(--bg) 8px,color-mix(in srgb,var(--l-contested) 6%,var(--bg)) 8px,color-mix(in srgb,var(--l-contested) 6%,var(--bg)) 16px)}
.lane-trust{--lc:var(--l-institution)} .lane-patient{--lc:var(--l-patient)} .lane-clinician{--lc:var(--l-guidance)} .lane-missing{--lc:var(--l-missing)}

/* checklist tool */
.tool-out{white-space:pre-wrap;font:.88rem/1.5 var(--mono);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:.8rem;max-height:22rem;overflow:auto}
.tool-grid{display:grid;gap:.7rem}
.tool-grid label{display:grid;gap:.25rem;font:600 .85rem var(--sans)}
.tool-grid input,.tool-grid textarea,.tool-grid select{font:400 .95rem var(--sans);padding:.5rem .6rem;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink)}
.tool-grid textarea{min-height:4.5rem;resize:vertical}

/* embed mode */
.embed .topbar,.embed .foot{display:none} .embed .dial{top:0}

@media print{.topbar,.rail,.dial,.foot,.continue,.onward,.ref{display:none!important}.layer{display:block!important}body{background:#fff;color:#000}.layout{display:block}}

/* Commissioned diagrams have an adjacent caption and text equivalent. */
.guide-visual{margin:1.5rem 0;max-width:100%}.guide-visual img{display:block;width:100%;height:auto;border-radius:.6rem}.guide-visual figcaption{font-size:.95rem;line-height:1.5;margin:.6rem 0;color:var(--muted)}.guide-visual details{margin:.75rem 0}.guide-visual summary{cursor:pointer;font-weight:600}