@charset "UTF-8";
:root { color-scheme: light; --paper:#f8f7f2; --ink:#202d30; --muted:#657170; --line:#dcded5; --accent:#126657; --tint:#e7efe8; --white:#fffefa; --mono:ui-monospace,SFMono-Regular,Consolas,monospace; --sans:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
@media print{.sidebar,.topbar,.mobile-header,.page-toc,.main-footer,.chapter-toolbar{display:none}main{margin:0;padding:0}.route-section[hidden]{display:none}.prose{font-size:11pt}.prose a{color:inherit}.prose pre{color:black;background:#eee;white-space:pre-wrap}.prose h2{break-after:avoid}.table-scroll{overflow:visible}}
.topbar>div{display:flex;gap:24px}.diagram-source{margin:24px 0}.diagram-source figcaption{font:600 11px var(--mono);text-transform:uppercase;letter-spacing:.8px;color:var(--accent)}.diagram-note{font-size:12px!important;color:var(--muted)}
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.toc-disclosure>summary{cursor:pointer}.prose img[src$=".svg"]{display:block;width:100%;height:auto;margin:24px 0;border-radius:7px}.page-toc:has(details:not([open])){max-height:none;padding-bottom:8px}
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.diagram-frame{display:block;min-width:0;max-width:760px;margin:24px 0}.diagram-scroll{display:block;max-width:100%;overflow-x:auto;border-radius:7px}.diagram-pan-hint{display:none}.prose .diagram-scroll img[src$=".svg"]{margin:0;max-width:760px}
@media(max-width:760px){.prose .diagram-scroll img[src$=".svg"]{min-width:640px}.diagram-pan-hint{display:block;font:11px/1.6 var(--sans);color:var(--muted);margin-bottom:8px}}
.nav-parent{display:flex;align-items:stretch;margin:1px -9px;border-radius:4px}.nav-parent>a{flex:1;padding:6px 9px;font-size:12px;color:#445350;text-decoration:none;border-radius:4px}.nav-parent>a:hover{background:#e0e6dc}.nav-parent:has(a[aria-current=page]){background:#dae8dd;box-shadow:inset 3px 0 var(--accent)}.nav-parent>a[aria-current=page],.nav-parent.branch-active>a{color:#095442;font-weight:650}.nav-disclosure{display:flex;align-items:center;justify-content:center;width:32px;flex-shrink:0;padding:4px;border:0;background:transparent}.nav-disclosure svg{transition:transform .15s ease}.nav-disclosure[aria-expanded=true] svg{transform:rotate(90deg)}
.nav-submenu{list-style:none;margin:7px 0 14px 2px;padding:0 0 0 12px;border-left:1px solid #c9d5ca}.nav-submenu li{margin:2px 0}.nav-submenu a{display:block;padding:5px 8px;font-size:11px;line-height:1.5;color:#52625c;text-decoration:none;border-radius:4px}.nav-submenu a:hover{background:#e0e6dc;color:var(--accent)}.nav-submenu a[aria-current=page]{background:#dae8dd;color:#095442;font-weight:650}
.topic-overview>ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;list-style:none;padding:0;margin:24px 0}.topic-overview>ul>li{position:relative;margin:0;padding:20px;background:var(--white);border:1px solid var(--line);border-radius:7px;font-size:13px;line-height:1.75;color:#52625c}.topic-overview>ul>li strong{display:block;font-size:17px;line-height:1.4;margin-bottom:9px}.topic-overview>ul>li a{text-decoration:none}.topic-overview>ul>li a::after{content:'';position:absolute;inset:0;border-radius:7px}.topic-overview>ul>li:has(a:hover){border-color:var(--accent);background:var(--tint)}.topic-overview>ul>li:focus-within{outline:3px solid #c29037;outline-offset:3px}
@media(max-width:760px),(pointer:coarse){.nav-submenu a,.nav-parent>a{min-height:44px;display:flex;align-items:center}.nav-disclosure{width:44px;min-height:44px}}
@media(max-width:760px){.topic-overview>ul{grid-template-columns:1fr}}