@charset "UTF-8";
:root{--ink:#163746;--muted:#526875;--blue:#006e88;--cyan:#cceef0;--line:#dce5e8;--paper:#f7fafb;--nav:#102e3b;--orange:#dd7644;--sans:"Segoe UI",Arial,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.65 var(--sans)}a{color:var(--blue);text-underline-offset:3px}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #edab40;outline-offset:4px}button{cursor:pointer}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.2;letter-spacing:-.03em}h1{font-size:44px}h2{font-size:26px}h3{font-size:21px}img{max-width:100%;height:auto}small{font-size:12px}.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}.skip{position:fixed;top:-80px;left:20px;background:white;padding:12px;z-index:100}.skip:focus{top:12px}.sidebar{position:fixed;inset:0 auto 0 0;width:250px;background:var(--nav);color:#dce8eb;padding:32px 22px 20px;display:flex;flex-direction:column;z-index:20;overflow:auto}.brand{display:flex;align-items:center;gap:12px;color:white;text-decoration:none;font-size:20px;font-weight:850;letter-spacing:.08em;line-height:1.1;margin-bottom:34px}.brand small{display:block;font-size:9px;letter-spacing:.16em;color:#97c7d1;margin-top:9px}.brand-mark{display:grid;place-items:center;background:#36c6d5;color:#102e3b;border-radius:11px;width:38px;height:44px;font-size:27px;font-style:italic;letter-spacing:-.15em;padding-right:5px;flex:none}.sidebar nav>a{display:flex;align-items:center;gap:12px;color:#ccdbe0;text-decoration:none;font-size:13px;font-weight:550;padding:10px 12px;border-radius:6px;margin:3px -4px}.sidebar nav>a:hover{background:#204553}.sidebar nav>a.active{background:#275967;color:white;box-shadow:inset 3px 0 #43d2df}.nav-home{justify-content:space-between;margin-bottom:23px!important}.nav-num{font-size:10px;color:#8db9c4;font-weight:400}.nav-label{font-size:9px;font-weight:700;letter-spacing:.16em;color:#8fa9b3;margin:24px 8px 10px}.sidebar-bottom{margin-top:auto;padding-top:35px;color:#bad0d7;font-size:12px}.sidebar-bottom small{display:block;color:#829eaa;margin-top:8px;line-height:1.8}.local-dot,.support-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#4dc6b2;margin-right:7px}.site-main{margin-left:250px}.topbar{height:82px;position:sticky;top:0;background:#ffffffed;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:26px;padding:0 44px;z-index:10;backdrop-filter:blur(12px)}.topbar-label{font-size:10px;font-weight:750;letter-spacing:.1em;white-space:nowrap}.topbar-label span{margin:0 12px;color:#9ab1bb}.header-search{margin-left:auto;display:flex;border-bottom:1px solid #c5d6db;max-width:225px}.header-search input{background:transparent;border:0;min-width:0;width:100%;font-size:12px;padding:7px 0}.header-search button{border:0;background:none;font-size:23px;color:var(--muted);padding:0 5px}.support{display:flex;align-items:center;text-decoration:none;white-space:nowrap;font-size:11px;line-height:1.35;color:var(--muted)}.support b{display:block;font-size:14px;color:var(--ink);font-weight:650;margin-top:3px}.menu-button{display:none}.home main{max-width:1540px;margin:auto}.home-hero{padding:64px 48px 48px;display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:44px;background:linear-gradient(120deg,#eaf5f7 0,#f3fafb 66%,#e5f1f3 100%);border-bottom:1px solid var(--line)}.eyebrow{font-size:10px;font-weight:750;letter-spacing:.16em;color:var(--blue);margin-bottom:22px}.home-hero h1{font-size:clamp(34px,3.4vw,56px);line-height:1.08;margin-bottom:25px;letter-spacing:-.045em}.home-hero h1 span{color:var(--blue)}.lede{font-size:17px;line-height:1.65;color:var(--muted);max-width:760px}.hero-search{display:flex;align-items:center;background:white;border:1px solid #bdced4;border-radius:8px;padding:6px 6px 6px 18px;margin:30px 0 15px;box-shadow:0 7px 20px #1e526109;max-width:730px}.hero-search>span{font-size:27px;color:var(--blue);margin-right:12px}.hero-search input{min-width:0;flex:1;padding:10px 0;border:0;outline-offset:0;font-size:14px}.hero-search button,.primary-button{background:var(--ink);color:white;border:0;border-radius:5px;padding:11px 18px;font-size:13px;font-weight:650}.hero-search button span{margin-left:15px}.try-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap;font-size:12px}.try-links>span{font-size:8px;letter-spacing:.12em;color:var(--muted);font-weight:700}.try-links a{text-decoration:none;border-bottom:1px solid #bdd4da}.hero-aside{border-left:1px solid #c9dfe4;padding-left:34px;align-self:stretch;display:flex;flex-direction:column;justify-content:center}.edition{font-size:9px;letter-spacing:.18em;color:#5e818e;margin-bottom:36px}.route-diagram{position:relative;display:grid;grid-template-columns:30px 1fr;align-items:center;gap:26px 11px}.route-diagram i{font-size:11px;font-style:normal;background:#edf8fa;border:1px solid #a0c7d1;width:29px;height:29px;display:grid;place-items:center;border-radius:50%;z-index:1}.route-diagram b{font-weight:600;font-size:12px}.route-line{position:absolute;width:1px;left:14px;top:0;bottom:0;background:#a0c7d1}.hero-aside>p{font-size:11px;line-height:1.9;color:#66818b;margin:32px 0 0}.section{padding:34px 48px 0}.section-title{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin-bottom:20px}.section-title h2{font-size:25px;margin:0}.section-title>span{font-size:9px;letter-spacing:.13em;color:var(--muted)}.section-title>a{font-size:12px;text-decoration:none;font-weight:650}.category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.category-card{position:relative;display:block;min-height:176px;padding:23px 24px;background:white;border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--ink);transition:transform .15s,box-shadow .15s}.category-card:hover{transform:translateY(-3px);box-shadow:0 8px 18px #193f4a0c;border-color:#99bcc7}.category-no{font-size:10px;font-weight:650;letter-spacing:.11em;color:var(--blue)}.category-card h3{margin:20px 0 10px;font-size:20px}.category-card p{font-size:13px;line-height:1.65;color:var(--muted);margin:0;max-width:260px}.card-arrow{position:absolute;right:22px;top:18px;font-size:22px;color:#82a5b0}.help-card{background:#e9f3f3;border-color:#c6dfe2}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.article-card{display:block;padding:24px;background:white;border:1px solid var(--line);border-radius:7px;text-decoration:none;color:var(--ink)}.article-card:hover{border-color:#95b6c1;background:#fbfeff}.card-meta{display:flex;align-items:center;gap:10px;font-size:10px;letter-spacing:.055em;color:var(--blue);margin-bottom:16px;text-transform:uppercase}.article-card h3{font-size:18px;line-height:1.3;margin-bottom:13px}.article-card h3>span{font-size:17px;color:#8ea9b3}.article-card p{font-size:13px;color:var(--muted);line-height:1.65;margin-bottom:0}.split-banner{margin:36px 48px 20px;display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);background:#fff;border-radius:8px}.split-banner>div{padding:28px 30px}.split-banner>div+div{border-left:1px solid var(--line)}.split-banner .eyebrow{margin-bottom:15px;font-size:9px}.split-banner h2{font-size:23px}.split-banner p:not(.eyebrow){font-size:13px;color:var(--muted)}.text-link{font-size:13px;font-weight:650;text-decoration:none}.edition-note{font-size:11px;color:var(--muted);margin:25px 48px 40px;max-width:800px}footer{padding:24px 44px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:25px;font-size:10px;color:var(--muted)}footer a{color:var(--muted)}.listing main{padding:44px 48px 64px;max-width:1400px;margin:auto;min-height:calc(100vh - 150px)}.page-heading{margin-bottom:28px;max-width:850px}.page-heading .eyebrow{margin-bottom:16px}.page-heading h1{font-size:43px;margin-bottom:20px}.note{background:#edf5f6;border:1px solid #cddfe4;border-left:3px solid #318398;border-radius:4px;padding:18px 22px;margin:22px 0;color:#355865;font-size:14px}.list-count{font-size:11px;color:var(--muted);margin:26px 0 16px}.tag{display:inline-block;border:1px solid #bcd5dc;background:#edf7f8;color:#245e6e;border-radius:4px;padding:4px 8px;font-size:10px;font-weight:650;letter-spacing:.05em}.tag.muted{font-size:9px;padding:3px 6px;background:#faf3e5;color:#82652c;border-color:#ead9b9}.breadcrumbs{font-size:11px;color:var(--muted);display:flex;gap:11px;margin:30px 0}.breadcrumbs a{text-decoration:none;color:var(--muted)}.article-page main{padding:0 48px 64px;max-width:1480px;margin:auto}.article-layout{display:grid;grid-template-columns:minmax(0,850px) 200px;gap:52px}.article-heading{border-bottom:1px solid var(--line);padding-bottom:24px;margin-bottom:30px}.article-badges{display:flex;align-items:center;gap:12px;margin-bottom:23px;flex-wrap:wrap}.status{font-size:11px;color:#866b37}.article-heading h1{font-size:43px;line-height:1.1;margin-bottom:22px}.article-tools{display:flex;gap:20px;align-items:center;justify-content:space-between;font-size:11px;color:var(--muted);margin-top:25px}.print-button{border:1px solid #c7d7dd;background:white;border-radius:4px;padding:7px 11px;color:var(--ink);font-size:11px}.prose{font-size:16px;line-height:1.8;color:#2d4855;overflow-wrap:anywhere}.prose h2{color:var(--ink);font-size:25px;margin:36px 0 16px}.prose h3{margin-top:30px;font-size:20px}.prose p,.prose ul,.prose ol{margin:0 0 22px}.prose ol,.prose ul{padding-left:26px}.prose li{padding-left:5px;margin:9px 0}.prose blockquote{margin:25px 0;background:#fff4e8;border-left:4px solid #ca7941;padding:20px 23px;color:#754820}.prose blockquote p{margin:0}.prose img{border:1px solid #d9e2e7;border-radius:5px;background:white}.prose pre{padding:18px 20px;background:#153644;color:#e5f4f7;overflow-x:auto;border-radius:6px;line-height:1.7;font-size:13px}.prose code{font-family:Consolas,monospace;font-size:.86em;background:#e8f0f3;padding:2px 5px;border-radius:3px}.prose pre code{background:none;padding:0;font-size:inherit;color:inherit}.table-scroll{overflow-x:auto;margin-bottom:24px}.prose table{border-collapse:collapse;width:100%;background:white;font-size:13px;line-height:1.65}.prose th,.prose td{border:1px solid var(--line);padding:13px 15px;text-align:left;vertical-align:top}.prose th{background:#eaf2f5;color:#214654;font-weight:650}.toc{align-self:start;position:sticky;top:115px;border-left:1px solid var(--line);padding-left:23px;margin-top:15px;max-height:calc(100vh - 140px);overflow:auto}.toc>p{font-size:9px;letter-spacing:.16em;font-weight:750;color:var(--muted);margin-bottom:18px}.toc>a{display:block;text-decoration:none;font-size:12px;line-height:1.6;color:#5a7682;margin:0 0 14px}.toc>a:hover{color:var(--blue)}.toc-help{border-top:1px solid var(--line);padding-top:20px;margin-top:28px;font-size:12px}.toc-help a{display:block;margin-top:12px;text-decoration:none}.source-box{margin-top:42px;padding:23px 26px;background:#edf3f6;border:1px solid var(--line);border-radius:6px;font-size:12px;line-height:1.8}.source-box h2{font-size:18px;margin-bottom:14px}.source-box p{margin-bottom:12px}.source-box ul{padding-left:18px;margin:0}.related{margin-top:33px}.related h2{font-size:21px}.related>a{display:block;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;text-decoration:none}.source-record{padding:28px 0;border-bottom:1px solid var(--line);font-size:13px}.source-record h2{font-size:21px}.source-record code,.source-path{overflow-wrap:anywhere;color:var(--muted);font-size:12px}.source-record details{margin-bottom:15px}.search-panel{padding:24px;background:white;border:1px solid var(--line);border-radius:8px}.search-panel form{display:flex;gap:12px}.search-panel input{flex:1;min-width:0;border:1px solid #a6c1cb;padding:12px 15px;border-radius:5px}.filters{display:flex;gap:30px;flex-wrap:wrap;margin-top:18px}.filters label{font-size:12px;color:var(--muted)}.filters select{display:block;font-size:13px;margin-top:6px;border:1px solid var(--line);padding:8px;background:var(--paper);border-radius:4px;min-width:170px}#result-count{font-size:13px;color:var(--muted);margin:25px 0}.search-result{display:block;background:white;padding:24px 26px;border:1px solid var(--line);margin-bottom:13px;border-radius:6px;text-decoration:none}.search-result:hover{border-color:#91b6c4}.search-result h2{font-size:21px;margin:0 0 12px;color:var(--ink)}.search-result p{font-size:14px;color:var(--muted);margin:0}.search-result .card-meta{margin-bottom:12px}
@media(min-width:1700px){.home-hero{padding-top:78px;padding-bottom:65px}.category-card{min-height:195px}.section{padding-top:44px}}
@media(max-width:1250px){.topbar-label{display:none}.topbar{padding:0 32px}.header-search{margin-left:0;margin-right:auto}.home-hero{grid-template-columns:1fr;padding:44px 32px}.hero-aside{display:none}.section{padding-left:32px;padding-right:32px}.split-banner{margin-left:32px;margin-right:32px}.article-layout{gap:28px;grid-template-columns:minmax(0,1fr) 160px}.article-page main{padding:0 32px 45px}.listing main{padding:35px 32px 45px}.article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-heading h1{font-size:36px}.home .article-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.home .article-card{padding:20px}}
@media(max-width:950px){.sidebar{width:220px;padding-left:18px;padding-right:18px}.site-main{margin-left:220px}.article-layout{display:block}.toc{display:none}.home .article-grid{grid-template-columns:1fr}.split-banner{display:block}.split-banner>div+div{border-left:0;border-top:1px solid var(--line)}.category-card h3{font-size:18px}.brand{font-size:17px}.topbar{gap:15px}.support b{font-size:12px}}
@media(max-width:720px){.sidebar{transform:translateX(-100%);width:260px;transition:transform .18s}.site-main{margin-left:0}.menu-open .sidebar{transform:translateX(0);box-shadow:12px 0 50px #102e3b40}.menu-open .menu-button{margin-left:248px}.menu-button{display:block;background:transparent;border:0;font-size:21px;color:var(--ink);padding:8px;flex:none}.topbar{padding:0 18px;height:70px;gap:13px}.header-search{max-width:170px}.support-dot{display:none}.support{font-size:9px}.support b{font-size:11px}.home-hero{padding:34px 24px}.home-hero h1{font-size:37px}.home-hero .lede{font-size:15px}.hero-search{padding-left:10px}.hero-search input{font-size:12px}.hero-search button{padding:11px;font-size:12px}.hero-search button span{display:none}.hero-search>span{margin-right:6px}.try-links{font-size:11px;gap:13px}.section{padding:28px 24px 0}.section-title h2{font-size:22px}.section-title>span{display:none}.category-grid{gap:11px}.category-card{padding:19px 16px;min-height:180px}.category-card h3{font-size:18px;margin-top:20px}.category-card p{font-size:12px}.card-arrow{right:15px}.split-banner{margin:28px 24px 20px}.edition-note{margin:25px 24px}.listing main{padding:32px 24px}.page-heading h1{font-size:34px}.article-grid{grid-template-columns:1fr}.article-page main{padding:0 24px 40px}.article-heading h1{font-size:34px}.article-heading .lede{font-size:16px}.prose{font-size:15px}.prose h2{font-size:23px}.prose td,.prose th{padding:11px;min-width:100px}.article-tools{gap:8px;font-size:10px}footer{padding:22px 24px;display:block;font-size:10px}footer>a{display:block;margin-top:10px}.search-panel{padding:16px}.search-panel form{gap:8px}.search-panel input{font-size:13px}.filters{gap:14px}.filters select{min-width:130px;max-width:100%}.search-result{padding:20px}.source-box{padding:20px}.breadcrumbs{margin-top:22px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{body{background:white;color:black;font-size:11pt}.sidebar,.topbar,.toc,.print-button,footer,.related,.skip{display:none!important}.site-main{margin:0}.article-page main{padding:0;max-width:none}.article-layout{display:block}.article-heading h1{font-size:26pt}.article-heading{margin-bottom:18px}.prose{font-size:10.5pt;line-height:1.6}.prose h2{font-size:17pt;break-after:avoid}.prose pre{white-space:pre-wrap;background:#eee;color:black}.table-scroll{overflow:visible}.prose table{font-size:9pt}.prose tr,img{break-inside:avoid}.source-box{break-inside:avoid}.home-hero{display:block}.hero-search,.try-links{display:none}a{color:inherit}.status{color:black}.article-tools{margin-top:12px}.home main,.listing main{padding:0}.category-grid,.article-grid{grid-template-columns:1fr 1fr}}

/* Origin and editorial-review states */
.card-meta{flex-wrap:wrap;gap:7px}.origin-tag{font-size:9px;letter-spacing:0;text-transform:none;padding:3px 7px;line-height:1.5;border:1px solid #bbd2dc;border-radius:4px;background:#edf4f8;color:#2d607b}.origin-connected{background:#f1edfa;border-color:#d1c4e9;color:#654993}.origin-suggested{background:#fff4e3;border-color:#e5cea4;color:#805d24}.origin-original{background:#e9f5ec;border-color:#b9d9c3;color:#306c45}.origin-explanation{background:#f0f5f7;border-left:3px solid #65899e;padding:16px 20px;margin:22px 0;font-size:12px;color:#476472}.origin-explanation p{margin:7px 0}.origin-explanation a{font-size:11px}.draft-banner{padding:20px 24px;background:#fff5e7;border:1px solid #e8cfaa;border-left:4px solid #bc7e31;border-radius:5px;margin:22px 0 28px;color:#795c31;font-size:14px}.draft-banner p{margin:8px 0}.draft-count{font-size:10px;border-radius:10px;padding:0 6px;background:#51717e;color:white;margin-left:auto}.include-drafts{display:flex;align-items:center;gap:8px;align-self:flex-end;padding-bottom:8px}.include-drafts input{flex:none;width:16px;height:16px}.filters{column-gap:20px;row-gap:16px}.filters select{min-width:145px}

/* Equipment photographs and local navigation */
.equipment-link{text-decoration-line:underline;text-decoration-style:dotted;text-decoration-thickness:1px;text-underline-offset:4px;font-weight:600}
.equipment-link:hover{text-decoration-style:solid;color:#004d62}
.equipment-photo{display:block;width:100%;aspect-ratio:4/3;background:#edf3f5;border-radius:8px;overflow:hidden;position:relative}
.equipment-photo>img{display:block;width:100%;height:100%;object-fit:contain}
.equipment-crop>img{position:absolute;height:auto!important;border-radius:0!important}
.equipment-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:24px 0}
.equipment-card{display:block;min-width:0;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px;text-decoration:none;color:var(--ink)}
.equipment-card:hover{border-color:#79a7b4;box-shadow:0 6px 20px #17394712}
.equipment-card .equipment-photo{aspect-ratio:4/3!important}
.equipment-card .equipment-crop{aspect-ratio:auto!important}
.equipment-card-copy{display:block;padding:15px 7px 7px}
.equipment-card-copy strong{display:block;font-size:17px;line-height:1.4;margin-bottom:8px}
.equipment-card-copy>span{display:block;color:var(--muted);font-size:12px;line-height:1.6}
.equipment-hero{max-width:540px;margin:26px 0 32px}
.equipment-hero figcaption{font-size:11px;color:var(--muted);margin-top:9px}
.equipment-preview{position:fixed;width:285px;max-width:calc(100vw - 24px);padding:12px;background:white;color:var(--ink);border:1px solid #b6cdd6;border-radius:12px;box-shadow:0 12px 40px #102e3b33;z-index:80;line-height:1.4}
.equipment-preview[hidden]{display:none}
.equipment-preview .equipment-photo{max-height:195px}
.equipment-preview>strong{display:block;font-size:15px;margin:12px 2px 5px}
.equipment-preview-caption{display:block;font-size:11px;color:var(--muted);margin:0 2px 10px}
.equipment-preview-hint{display:block;padding-top:9px;border-top:1px solid var(--line);font-size:11px;color:var(--blue)}
.origin-explanation{padding:10px 15px;margin:16px 0;font-size:11px;border-left-width:2px;background:#f0f5f7}
.origin-explanation summary{cursor:pointer;font-weight:600}
@media(max-width:1100px){.equipment-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.equipment-grid{grid-template-columns:1fr}.equipment-hero{margin-inline:0}.equipment-card .equipment-photo{max-height:230px}}
@media print{.equipment-preview{display:none!important}.equipment-grid{grid-template-columns:1fr 1fr}.equipment-hero{max-width:330px}.equipment-link{text-decoration:none;color:inherit}}

.equipment-photo>svg{display:block;width:100%;height:100%}.equipment-diagram{position:relative}.equipment-diagram>img{display:block;width:100%}.equipment-diagram .equipment-hotspot{position:absolute;display:block;border-radius:5px;outline-offset:1px}.equipment-diagram .equipment-hotspot:hover{background:#39bccb20;box-shadow:inset 0 0 0 2px #006e88}.equipment-diagram .equipment-hotspot:focus-visible{outline:3px solid #edab40}@media print{.equipment-diagram .equipment-hotspot{display:none}}
.equipment-gallery{margin:28px 0 40px}.equipment-gallery h2{font-size:23px}.equipment-gallery figure{margin:15px 0;max-width:540px}.equipment-gallery img{display:block;max-height:520px;width:100%;object-fit:contain;background:#edf3f5;border-radius:8px}.equipment-gallery figcaption{margin-top:9px;font-size:11px;color:var(--muted)}

.network-flow{display:flex;align-items:center;gap:14px;margin:28px 0}.network-flow>div{flex:1;border:1px solid #bfd4df;border-top:4px solid #00758b;padding:22px 18px;border-radius:7px;background:#f1f8fa}.network-flow a{font-weight:750}.network-flow p{font-size:14px;margin:12px 0 0}.network-flow>span{font-size:25px}@media(max-width:750px){.network-flow{flex-direction:column;align-items:stretch}.network-flow>span{text-align:center;transform:rotate(90deg)}}