:root{--ink:#172c38;--muted:#526672;--paper:#fffefa;--line:#dce4e6;--accent:#006b60;--light:#e8f3ef;font:16px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper)}
*{box-sizing:border-box}
body{margin:0}
a{color:var(--accent);text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #d28620;outline-offset:3px}
header{height:78px;display:flex;align-items:center;gap:28px;padding:0 34px;border-bottom:1px solid var(--line);background:var(--paper);position:sticky;top:0;z-index:5}
header>a:last-child{margin-left:auto;font-size:.85rem}
.brand{text-decoration:none;font-size:1.35rem;font-weight:750;display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand-mark{background:var(--ink);color:#8bd2b7;border-radius:12px;width:36px;height:36px;text-align:center;line-height:36px}
.brand-sub{font-weight:400;color:var(--muted)}
.status{font-size:.65rem;letter-spacing:.09em;border:1px solid #abc5bc;border-radius:30px;padding:4px 10px;color:var(--accent);font-weight:700}
.layout{display:grid;grid-template-columns:260px minmax(0,940px) 220px;max-width:1510px;margin:auto}
aside{padding:32px 24px;border-right:1px solid var(--line);height:calc(100vh - 78px);overflow:auto;position:sticky;top:78px}
aside label{font-size:.8rem;font-weight:650}
input{width:100%;padding:10px;border:1px solid #a5b9bf;background:white;border-radius:6px;font:inherit;font-size:.85rem;margin:5px 0 12px}
nav a,#results a{display:block;line-height:1.45;padding:7px 10px;text-decoration:none;font-size:.85rem;color:var(--muted);border-radius:5px}
nav a:hover,nav a[aria-current]{background:var(--light);color:var(--accent)}
nav a[aria-current]{font-weight:700}
.nav-label{font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;font-weight:750;margin:24px 10px 8px;color:var(--ink)}
main{padding:48px 48px 32px;min-width:0}
.eyebrow{color:var(--accent);font-size:.67rem;letter-spacing:.15em;font-weight:750}
h1{font-size:2.55rem;line-height:1.16;letter-spacing:-.035em;margin:12px 0 26px;max-width:800px}
h2{font-size:1.5rem;line-height:1.3;margin:44px 0 18px;letter-spacing:-.02em;border-top:1px solid var(--line);padding-top:26px}
h3{font-size:1.15rem;margin-top:30px}
h1,h2,h3,h4{scroll-margin-top:100px}
p{margin:14px 0}
article>p:first-of-type{font-size:1.1rem}
table{width:100%;border-collapse:collapse;font-size:.87rem;display:block;overflow-x:auto;margin:24px 0}
th,td{text-align:left;padding:12px 14px;vertical-align:top;border-bottom:1px solid var(--line);min-width:120px}
th{background:#edf2f1;font-weight:650}
td:first-child{font-weight:550}
code{font-family:ui-monospace,Consolas,monospace;font-size:.86em;background:#edf2f2;padding:2px 5px;border-radius:3px;overflow-wrap:anywhere}
pre{overflow-x:auto;background:#edf2f2;border:1px solid var(--line);border-radius:8px;padding:18px;font-size:.82rem;line-height:1.6}
pre code{padding:0;background:none}
blockquote{border-left:3px solid var(--accent);margin:24px 0;padding:4px 20px;background:var(--light)}
.diagram{margin:28px 0;padding:16px;border:1px solid var(--line);border-radius:10px;background:white;overflow:auto}
.diagram .mermaid{border:0;background:transparent;padding:0}
.diagram svg{max-width:100%;height:auto}
.diagram details{font-size:.8rem;color:var(--muted)}
summary{cursor:pointer}
.toc{padding:28px 15px;position:sticky;top:78px;height:calc(100vh - 78px);overflow:auto}
.toc a{font-size:.75rem}
.anchor{text-decoration:none;color:#91a8a6;margin-left:8px;font-size:.65em;opacity:0}
h1:hover .anchor,h2:hover .anchor,h3:hover .anchor,.anchor:focus{opacity:1}
img{max-width:100%;height:auto}
footer{border-top:1px solid var(--line);padding-top:22px;margin-top:54px;font-size:.75rem;color:var(--muted)}
.skip{position:fixed;left:10px;top:-100px;z-index:20;background:white;padding:10px}
.skip:focus{top:10px}
#results a{border-left:2px solid var(--accent);margin-bottom:4px}
#results p{font-size:.8rem}
@media(max-width:1200px){.layout{grid-template-columns:240px minmax(0,1fr)}
.toc{display:none}
main{padding:36px}
}
@media(max-width:760px){header{height:auto;min-height:70px;padding:12px 18px;gap:12px;flex-wrap:wrap;position:static}
.status{order:3}
.brand{font-size:1.15rem}
.layout{display:block}
aside{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line);padding:16px}
aside nav{display:flex;flex-wrap:wrap;gap:4px}
aside .nav-label{width:100%;margin:10px}
aside nav a{font-size:.75rem}
main{padding:28px 20px}
h1{font-size:2rem}
.diagram{padding:8px}
th,td{padding:9px;min-width:120px}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}
}

button{font:inherit;font-size:.8rem;padding:6px 12px;border:1px solid #83aaa2;border-radius:5px;background:#e8f3ef;color:#006b60;cursor:pointer}
button:focus-visible{outline:3px solid #d28620;outline-offset:3px}
.expand-diagram{margin:10px 0}
dialog{width:94vw;max-width:1600px;max-height:92vh;border:1px solid #83aaa2;border-radius:12px;padding:20px;color:#172c38}
dialog::backdrop{background:#172c38b0}
.diagram-canvas{overflow:auto;max-height:78vh;margin-top:15px}