/* Late-’90s library-web layout: tinted left column, navy link bar, one reading column. */
:root{--ink:#000;--muted:#3d4f55;--link:#0c2470;--visited:#5a2a82;--line:#c9d6d8;--soft:#eef3f3;--side:#7ab3bb;--navy:#0f3440;--mark:#8b1a1a;--sans:Arial,Helvetica,sans-serif;--serif:"Times New Roman",Times,Georgia,serif;--mono:"Courier New",monospace;--side-w:200px;--gutter:8px}

*{box-sizing:border-box}
html{min-height:100%;background:#fff}
body{margin:0;min-height:100vh;color:var(--ink);font:14px/1.45 var(--sans);background:linear-gradient(to right,var(--side) 0 calc(var(--gutter) + var(--side-w)),var(--navy) calc(var(--gutter) + var(--side-w)) calc(var(--gutter) + var(--side-w) + 2px),#fff calc(var(--gutter) + var(--side-w) + 2px))}
.site-sheet{display:grid;grid-template-columns:var(--side-w) minmax(0,700px);grid-template-areas:"mark head" "nav nav" "side main" "side foot";margin-left:var(--gutter)}
a{color:var(--link)}
a:visited{color:var(--visited)}
a:hover{color:var(--mark)}
a:focus-visible{outline:2px solid var(--mark);outline-offset:2px}
img{display:block;max-width:100%;height:auto}
figure{margin:0}
p{margin:0 0 14px}
h1,h2,h3{line-height:1.25;font-weight:bold}
h1{font-size:22px;margin:0 0 10px}
h2{font-size:17px;margin:26px 0 10px}
h3{font-size:14px;margin:20px 0 8px}
.skip{position:absolute;top:-100px;left:12px;background:#fff;padding:10px;z-index:10}
.skip:focus{top:8px}

.wordmark{grid-area:mark;padding:14px 4px 0 2px;font:36px/1 var(--serif);font-variant:small-caps;letter-spacing:1px;color:var(--mark);text-decoration:none}
.wordmark:visited{color:var(--mark)}
.site-header{grid-area:head;display:flex;align-items:stretch;justify-content:space-between;gap:16px;padding:10px 0 4px 16px}
.site-header>div{display:flex;flex-direction:column;justify-content:space-between}
.site-kicker{font-size:12px;color:var(--muted);margin:2px 0 0}
.site-title{font:bold 24px/1.2 var(--sans);margin:0}
.site-lede{font-weight:bold;font-size:13px;margin:0 0 6px}
/* Box-art squares framing the icon, in the site's teal, navy, and ivory. */
.header-art{position:relative;isolation:isolate;flex:0 0 108px;height:90px}
.header-art::before{content:"";position:absolute;top:4px;left:2px;width:70px;height:70px;border:5px solid #408b98;background:#f6f5ee;z-index:-1}
.header-art::after{content:"";position:absolute;bottom:0;right:0;width:58px;height:58px;border:1px solid var(--navy);z-index:-2}
.header-art span{position:absolute;top:0;right:4px;width:26px;height:26px;background:var(--side);z-index:-3}
.header-art img{position:absolute;top:14px;left:12px;width:50px;height:50px}
.main-nav{grid-area:nav;display:flex;flex-wrap:wrap;background:var(--navy);padding:2px 10px}
.main-nav a,.main-nav a:visited{color:#fff;text-decoration:none;font-size:13px;padding:1px 6px}
.main-nav a:hover{text-decoration:underline;color:#fff}
.main-nav a[aria-current]{text-decoration:underline;text-decoration-color:var(--side)}
.main-nav a:focus-visible{outline-color:#fff}

.sidebar{grid-area:side;padding:20px 12px 30px 0;font-size:13px}
.sidebar a[aria-current]{font-weight:bold;color:var(--ink)}
.crumb{border-bottom:2px solid var(--navy);padding-bottom:1px;margin:0 16px 20px 0;font-size:13px}
.crumb a{font-weight:bold}
.side-heading{font-weight:bold;margin:0 0 12px}
.side-list{list-style:none;margin:0 0 20px;padding:0}
.side-list li{position:relative;padding-left:16px;margin:0 0 6px}
.side-list li::before{content:"";position:absolute;left:2px;top:.5em;width:6px;height:6px;background:var(--navy)}
.side-topics li{margin-bottom:3px}

main{grid-area:main;min-height:320px;padding:18px 0 28px 16px}
.site-footer{grid-area:foot;border-top:1px solid var(--line);margin-left:16px;padding:10px 0 14px;display:flex;justify-content:space-between;gap:12px;font-size:11px;color:var(--muted)}
.site-footer p{margin:0}
.site-footer a{margin-left:12px}
.site-footer a.license{margin:0}

.page-heading{margin-bottom:18px}
.page-heading h1{font-size:18px}
.page-heading p:last-child{margin-bottom:0}
.lede{color:var(--muted)}
.eyebrow{font-weight:bold;margin-bottom:6px}
.release-note{padding:8px 10px;border:1px solid var(--navy);background:var(--soft);font-size:12px}
.editor-shot{margin:22px 0}
.editor-shot img{border:1px solid #666}
.editor-shot figcaption{font-size:11px;color:var(--muted);margin-top:6px}
.feature-list{display:grid;grid-template-columns:105px 1fr;gap:9px 16px;font-size:13px}
.feature-list dt{font-weight:bold}
.feature-list dd{margin:0}

.post-list{list-style:none;margin:0 0 20px;padding:0}
.post-list li{margin:0 0 8px}
.post-list time{color:var(--muted);font-size:12px;margin-left:6px}

.prose{overflow-wrap:anywhere}
.standalone{max-width:680px}
.prose h1{font-size:20px}
.prose h2{font-size:16px}
.prose ul,.prose ol{padding-left:24px}
.prose li{margin:4px 0}
.prose code{font:.95em var(--mono);background:var(--soft);padding:1px 3px}
.prose pre{background:var(--soft);border:1px solid var(--line);padding:10px 12px;overflow:auto;line-height:1.4}
.prose pre code{padding:0;background:none;font-size:12px;white-space:pre;overflow-wrap:normal}
.prose blockquote{margin:16px 0 16px 40px;padding:0}
.prose blockquote p:last-child{margin:0}
.prose table{border-collapse:collapse;display:block;max-width:100%;overflow-x:auto;font-size:12px;margin:16px 0}
.prose th,.prose td{border:1px solid var(--line);padding:5px 8px;text-align:left;vertical-align:top}
.prose th{background:var(--soft)}
.prose hr{border:0;border-top:1px solid var(--line);margin:22px 0}
.reading-body{min-width:0}
.source-note{display:flex;flex-wrap:wrap;justify-content:space-between;gap:5px;font-size:10px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:6px;margin-bottom:16px}
.source-note code{font-family:var(--mono)}
.source-prose{font-size:13px}
.adr-index table{overflow-wrap:normal}
.adr-index th:first-child,.adr-index td:first-child,.adr-index th:last-child,.adr-index td:last-child{white-space:nowrap}

.gallery{display:grid;grid-template-columns:1fr 1fr;gap:22px 18px}
.gallery figure{min-width:0}
.gallery img{border:1px solid #666}
.gallery figcaption{display:flex;gap:8px;font-size:11px;margin-top:5px}
.gallery figcaption>span:last-child{margin-left:auto}
.shot-number{color:var(--muted)}
.fine{font-size:11px;color:var(--muted)}
.gallery-note{margin-top:24px}
.extension-table{width:100%;border-collapse:collapse;font-size:12px;line-height:1.45;margin-bottom:22px}
.extension-table th,.extension-table td{padding:7px 8px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.extension-table thead{background:var(--soft)}
.extension-table td:last-child{overflow-wrap:anywhere}
.extension-version{display:block;font-size:10px;font-weight:normal;color:var(--muted);white-space:nowrap;margin-top:2px}
.extension-note{font-size:13px}

/* One column: header, link bar, content, then the section list. */
@media(max-width:700px){
body{background:#fff;font-size:13px}
.site-sheet{grid-template-columns:minmax(0,1fr);grid-template-areas:"mark" "head" "nav" "main" "side" "foot";margin:0}
.wordmark{background:var(--side);padding:10px 12px 8px}
.site-header{padding:8px 12px 6px}
.site-title{font-size:19px}
.header-art{display:none}
.main-nav{padding:3px 6px}
.main-nav a{padding:3px 6px}
main{padding:16px 12px 24px}
.sidebar{background:var(--side);padding:14px 12px 10px;border-top:2px solid var(--navy)}
.crumb{margin-right:0}
.side-list{display:flex;flex-wrap:wrap;gap:4px 16px}
.side-list li{margin:0}
.site-footer{margin:0;padding:10px 12px;flex-wrap:wrap}
.site-footer a{margin:0 12px 0 0}
.gallery{grid-template-columns:1fr}
.feature-list{grid-template-columns:80px 1fr;gap:10px}
.prose pre code{font-size:11px}
}

@media print{
body{background:#fff;font-size:11pt}
.site-sheet{display:block;margin:0}
.wordmark,.site-header,.main-nav,.sidebar,.site-footer,.skip,.source-note{display:none}
main{padding:0}
.prose pre,.prose pre code{white-space:pre-wrap}
.prose table{display:table}
a{color:inherit}
.gallery figure{break-inside:avoid}
}