:root{--ink:#252525;--muted:#737373;--paper:#fff;--tint:#fff0e8;--line:#e5e5e5;--accent:#ff4800;--font:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.75 var(--font)}a{color:var(--accent);text-underline-offset:4px}a:hover{color:#ea580c}a:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.skip{position:absolute;left:-10000px}.skip:focus{left:20px;top:15px;background:#fff;padding:10px;z-index:3}
.edition{padding:10px 4%;display:flex;justify-content:space-between;gap:18px;border-bottom:1px solid var(--line);font-size:11px;color:var(--muted)}.edition>span:last-child{white-space:nowrap}
header{padding:26px 4%;display:flex;align-items:center;justify-content:space-between;gap:30px;border-bottom:1px solid var(--line)}
.brand{font-weight:600;font-size:22px;line-height:1.2;letter-spacing:-.5px;max-width:420px;color:var(--ink);text-decoration:none;overflow-wrap:anywhere}.brand small{display:block;font-size:11px;font-weight:500;line-height:2;color:var(--accent);margin-top:5px}
header nav{display:flex;gap:25px;font-size:13px;font-weight:500}header nav a{color:var(--ink);text-decoration:none}header nav a:hover{color:var(--accent)}
.cta{font-size:13px;font-weight:600;background:var(--accent);color:#fff;border-radius:10px;padding:11px 16px;text-decoration:none;white-space:nowrap}.cta:hover{background:#ea580c;color:#fff}
main{max-width:1450px;margin:auto;padding:30px 4% 80px}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0 0 36px;padding:0;font-size:12px;color:var(--muted)}.crumbs li+li:before{content:'/';margin-right:8px;color:#a3a3a3}.crumbs a{color:inherit}
.grid{display:grid;grid-template-columns:165px minmax(0,1fr) 225px;gap:44px}
.rail{font-size:13px;border-right:1px solid var(--line);padding-right:20px}.rail a{display:block;margin:12px 0;color:var(--ink);text-decoration:none}.rail a:hover{color:var(--accent)}.rail hr,.record hr{border:0;border-top:1px solid var(--line);margin:18px 0}
.rail strong,.eyebrow{font-size:11px;font-weight:600;line-height:1.5;color:var(--accent)}
article{min-width:0}
h1{font-weight:600;font-size:clamp(34px,4.2vw,60px);line-height:1.08;letter-spacing:-1.5px;margin:10px 0 26px;overflow-wrap:anywhere}
h2{font-weight:600;font-size:28px;line-height:1.2;letter-spacing:-.6px;margin:0 0 18px}h3{font-weight:600;font-size:20px;line-height:1.3;letter-spacing:-.3px}
p{margin:0 0 19px}article p,article li{color:#404040}
.answer{padding:22px 24px;background:var(--tint);border-radius:16px;font-size:19px;line-height:1.55}.answer p{margin:8px 0 0;color:var(--ink)}
.note{font-size:12px;color:var(--muted);margin-top:14px}
.toc{border:1px solid var(--line);border-radius:16px;padding:20px 24px;margin:28px 0 36px;font-size:13px}.toc ol{columns:2;padding-left:16px;margin:10px 0 0}.toc li{padding:3px 12px 3px 0;break-inside:avoid}
section{margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}
.record{border:1px solid var(--line);border-radius:16px;padding:20px;font-size:13px;align-self:start}.record h2{font-size:30px;margin-top:6px}.record dt{font-size:11px;color:var(--muted);margin-top:18px}.record dd{margin:4px 0;overflow-wrap:anywhere}
.directory{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px}.entry{display:block;color:var(--ink);text-decoration:none;padding:20px 0;border-top:1px solid var(--line)}.entry[hidden]{display:none}.entry h3{margin:8px 0 10px}.entry p{font-size:14px;line-height:1.65;margin-bottom:8px}.entry small{font-size:11px;font-weight:600;color:var(--accent)}.entry span{font-size:13px;font-weight:600;color:var(--accent)}
.resource-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:24px 0}.resource-list>a{display:block;padding:24px;border:1px solid var(--line);border-radius:16px;text-decoration:none;color:var(--ink)}.resource-list>a:hover{border-color:var(--accent)}.resource-list h3{font-size:22px;margin:10px 0}.resource-list span:last-child{font-size:13px;font-weight:600;color:var(--accent)}
.graph{overflow-x:auto;margin-top:20px}.graph svg{min-width:560px;width:100%;display:block;color:var(--accent)}.graph rect{fill:var(--paper);stroke:var(--accent);rx:12px}.graph text{fill:var(--ink);font:13px var(--font)}.graph a:hover rect{fill:var(--tint)}.graph-caption{font-size:13px;text-align:center;color:var(--muted)}
details{border-bottom:1px solid var(--line);padding:17px 0}summary{cursor:pointer;font-weight:600;line-height:1.4}details p{font-size:14px;margin:14px 0 0}
.paths{display:flex;flex-wrap:wrap;gap:10px}.paths a{border:1px solid var(--line);border-radius:8px;padding:10px 15px;text-decoration:none;font-size:13px;font-weight:500;color:var(--ink)}.paths a:hover{color:var(--accent);border-color:var(--accent)}
.citation{overflow-wrap:anywhere}.network-list li{margin-bottom:14px}
.search-label{display:block;font-weight:600;margin:20px 0 8px}#entry-search{width:100%;padding:16px;font:inherit;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink)}
footer{border-top:1px solid var(--line);padding:38px 4%;font-size:13px;display:grid;grid-template-columns:1fr 1fr;gap:20px}footer small{color:var(--accent)}footer nav{display:flex;justify-content:flex-end;gap:18px;flex-wrap:wrap}footer nav a{color:var(--muted)}footer p{grid-column:1/-1;color:var(--muted);max-width:900px;margin:0}
/* Four layouts, one per domain. */
.lab header{background:var(--ink);color:#fff}.lab .brand,.lab header nav a{color:#fff}.lab .brand small{color:#ffb899}.lab .grid{grid-template-columns:minmax(0,1fr) 240px;max-width:1080px;margin:auto}.lab .rail{display:none}.lab .answer{border-radius:0;border-left:4px solid var(--accent)}.lab .entry{padding:22px;border:1px solid var(--line);border-radius:16px;margin-bottom:16px}
.atlas header{align-items:flex-end;padding-top:38px;padding-bottom:22px}.atlas .brand{font-size:27px;max-width:520px}.atlas .grid{grid-template-columns:215px minmax(0,1fr);grid-template-rows:auto 1fr;gap:32px 62px;max-width:1150px;margin:auto}.atlas .rail{grid-column:1;grid-row:1;border:0;align-self:start}.atlas .record{grid-column:1;grid-row:2}.atlas article{grid-column:2;grid-row:1/span 2}.atlas .answer{background:none;border-radius:0;border-top:2px solid var(--accent);border-bottom:2px solid var(--accent);padding:22px 0}.atlas .directory{display:block}.atlas .edition{background:var(--tint)}
.journal header{border-top:6px solid var(--accent)}.journal .grid{grid-template-columns:170px minmax(0,1fr) 220px;gap:36px}.journal .record{background:#fafafa;border:0;border-top:4px solid var(--accent);border-radius:0}.journal .entry{border-top:1px solid var(--accent)}.journal footer{background:var(--ink);color:#fff}.journal footer a,.journal footer p{color:#d4d4d4}
@media(max-width:1100px){header{flex-wrap:wrap}.grid,.journal .grid{grid-template-columns:minmax(0,1fr) 210px;gap:30px}.rail,.atlas .rail{display:none}.atlas .grid{grid-template-columns:minmax(0,1fr) 210px;grid-template-rows:auto}.atlas article{grid-column:1;grid-row:1}.atlas .record{grid-column:2;grid-row:1}}
@media(max-width:720px){.edition{padding:9px 5%;justify-content:flex-end}.edition>span:first-child{display:none}header{padding:22px 5%;gap:16px}.brand,.atlas .brand{font-size:21px;max-width:100%}header nav{gap:18px;flex-wrap:wrap;order:3;width:100%}.cta{margin-left:auto}main{padding:22px 5% 50px}.grid,.lab .grid,.atlas .grid,.journal .grid{display:flex;flex-direction:column}.record{order:2;width:100%}.crumbs ol{margin-bottom:22px}.toc ol{columns:1}.directory,.resource-list{grid-template-columns:1fr}.answer{font-size:17px}h1{font-size:36px;letter-spacing:-1px}h2{font-size:25px}footer{display:block;padding:28px 5%}footer nav{justify-content:flex-start;margin:18px 0}.graph svg{min-width:500px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}