*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:#f4f5f6;color:#1f2429;font:16px/1.6 Arial,Helvetica,sans-serif}
a{color:#1a5f8a}
main a{text-decoration:underline}
:focus{outline:2px solid #1a5f8a;outline-offset:2px}
.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:8px 12px;z-index:20}
.skip:focus{left:8px;top:8px}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.archive-grid>*,.art>*,.topic-grid>*,.kb-foot .cols>*,ol.ledger li>*,dl.paths>div>*{min-width:0}
.body,.plain,.rail,.stackrow,pre{max-width:100%}
ol.ledger a,ul.recent a,.arch-list a,.plain ul.rows a{overflow-wrap:anywhere}

/* header */
.kb-head{background:#1f2429;color:#fff;border-bottom:3px solid #1a5f8a}
.kb-head a{color:#fff;text-decoration:none}
.kb-head .wrap{display:flex;align-items:center;gap:16px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
.kb-ident{display:flex;align-items:center;gap:12px}
.kb-ident img{display:block;width:38px;height:38px}
.kb-name{font:700 22px/1.1 Verdana,Geneva,sans-serif;letter-spacing:.06em;text-transform:uppercase}
.kb-role{font:400 12px/1.4 Courier New,monospace;color:#aeb6bd;margin-top:4px;letter-spacing:.02em}
.kb-nav{margin-left:auto;display:flex;gap:20px;flex-wrap:wrap}
.kb-nav a{font:700 13px/1 Arial,Helvetica,sans-serif;letter-spacing:.08em;text-transform:uppercase;padding:6px 0;border-bottom:2px solid transparent}
.kb-nav a:hover,.kb-nav a[aria-current]{border-bottom-color:#1a5f8a}

/* browse band */
.kb-browse{background:#eceef0;border-bottom:1px solid #d8dcdf}
.kb-browse .wrap{padding-top:36px;padding-bottom:32px}
.kb-browse h1{font:700 40px/1.15 Arial,Helvetica,sans-serif;margin:0 0 10px}
.kb-browse p{margin:0 0 20px;max-width:70ch;color:#4a525a}
.chips{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin:0;padding:0}
.chips a{display:block;background:#fff;border:1px solid #d8dcdf;padding:9px 14px;font-size:14px;text-decoration:none;color:#1a5f8a}
.chips a:hover{border-color:#1a5f8a}

section{padding:34px 0;border-bottom:1px solid #d8dcdf;background:#f4f5f6}
section:last-of-type{border-bottom:0}
.sec-title{font:700 15px/1 Arial,Helvetica,sans-serif;letter-spacing:.12em;text-transform:uppercase;color:#626a72;margin:0 0 18px}

/* topic index */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.topic-col{background:#fff;border:1px solid #d8dcdf;padding:18px}
.topic-col h3{font:700 22px/1.25 Arial,Helvetica,sans-serif;margin:0 0 6px}
.topic-col h3 a{text-decoration:none}
.topic-col .scope{font-size:13px;color:#626a72;margin:0 0 12px}
.topic-col ul{list-style:none;margin:0;padding:0}
.topic-col li{border-top:1px solid #eceef0;padding:7px 0;font-size:15px}

/* numbered ledger */
ol.ledger{list-style:none;margin:0;padding:0;counter-reset:kb}
ol.ledger li{counter-increment:kb;display:flex;gap:14px;align-items:baseline;border-bottom:1px solid #d8dcdf;padding:10px 2px}
ol.ledger li:before{content:counter(kb,decimal-leading-zero);font:700 13px/1.6 Courier New,monospace;color:#1a5f8a;min-width:26px}
ol.ledger a{font-size:16px}
.ledger-2{columns:2;column-gap:40px}
.ledger-2 li{break-inside:avoid}

/* troubleshooting */
dl.paths{margin:0}
dl.paths div{border-bottom:1px solid #d8dcdf;padding:10px 0;display:flex;gap:16px;flex-wrap:wrap}
dl.paths dt{font-weight:700;flex:1 1 340px;margin:0}
dl.paths dd{margin:0;flex:1 1 300px;font-size:15px}

/* recent */
ul.recent{list-style:none;margin:0;padding:0;columns:2;column-gap:40px}
ul.recent li{break-inside:avoid;border-bottom:1px solid #d8dcdf;padding:10px 0}
ul.recent .meta{display:block;font:400 12px/1.5 Courier New,monospace;color:#626a72;margin-top:3px}

/* archive */
.archive-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.stackrow{background:#fff;border:1px solid #d8dcdf;padding:14px;font:400 14px/1.9 Courier New,monospace;overflow-x:auto}
.arch-list{list-style:none;margin:14px 0 0;padding:0}
.arch-list li{border-top:1px solid #d8dcdf;padding:8px 0;font-size:15px}
.arch-list .meta{display:block;font:400 12px/1.5 Courier New,monospace;color:#626a72;letter-spacing:.06em;text-transform:uppercase;margin-top:3px}
.topic-col:nth-child(4){grid-column:span 2}
.topic-col:nth-child(4) ul{columns:2;column-gap:28px}
.topic-col:nth-child(4) li{break-inside:avoid}

/* footer */
.kb-foot{background:#1f2429;color:#c6ccd2;padding:34px 0 22px;font-size:14px}
.kb-foot a{color:#9ec6de}
.kb-foot .cols{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.kb-foot h2{font:700 12px/1 Arial,Helvetica,sans-serif;letter-spacing:.12em;text-transform:uppercase;color:#8d959c;margin:0 0 12px}
.kb-foot ul{list-style:none;margin:0;padding:0}
.kb-foot li{padding:4px 0}
.kb-copy{border-top:1px solid #39414a;margin-top:26px;padding-top:14px;font:400 12px/1.6 Courier New,monospace;color:#8d959c}

/* article */
.crumb{font:400 12px/1.6 Courier New,monospace;color:#626a72;padding:14px 0}
.crumb a{color:#1a5f8a}
.art{display:grid;grid-template-columns:250px minmax(0,780px);gap:40px;align-items:start;padding-bottom:40px}
.rail{background:#fff;border:1px solid #d8dcdf;padding:16px}
.rail h2{font:700 12px/1 Arial,Helvetica,sans-serif;letter-spacing:.12em;text-transform:uppercase;color:#626a72;margin:0 0 10px}
.rail ul{list-style:none;margin:0 0 18px;padding:0}
.rail li{border-top:1px solid #eceef0;padding:6px 0;font-size:14px}
.rail li.here{font-weight:700}
.rail li.here span{color:#1f2429}
.rail .facts{font:400 12px/1.7 Courier New,monospace;color:#4a525a;margin:0}
.body{background:#fff;border:1px solid #d8dcdf;padding:28px 32px}
.body h1{font:700 32px/1.2 Arial,Helvetica,sans-serif;margin:0 0 10px}
.body .metarow{font:400 12px/1.7 Courier New,monospace;color:#626a72;border-bottom:1px solid #d8dcdf;padding-bottom:12px;margin-bottom:18px}
.body .lede{font-size:18px;color:#3a424a;margin:0 0 22px}
.body h2{font:700 22px/1.3 Arial,Helvetica,sans-serif;margin:26px 0 10px}
.body h3{font:700 17px/1.3 Arial,Helvetica,sans-serif;margin:22px 0 8px}
.body p{max-width:70ch;margin:0 0 14px}
.body ol.steps{max-width:70ch;padding-left:22px}
.body ol.steps li{margin:0 0 8px}
pre{background:#eceef0;border:1px solid #d8dcdf;padding:14px;overflow-x:auto;font:400 13px/1.6 Courier New,monospace;margin:0}
figure{margin:0 0 18px}
figure img{max-width:100%;height:auto;display:block;border:1px solid #d8dcdf;background:#fff}
figcaption,.codecap{font:400 12px/1.6 Courier New,monospace;color:#626a72;margin-top:6px}
.callout{border-left:4px solid #1a5f8a;background:#eef4f8;padding:12px 16px;margin:20px 0;max-width:70ch}
.callout strong{display:block;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:#1a5f8a;margin-bottom:4px}
.prevnext{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid #d8dcdf;margin-top:28px;padding-top:16px;font-size:15px}
.returnbar{margin-top:18px;font-size:15px}
.related{margin-top:24px}
.related h2{font:700 12px/1 Arial,Helvetica,sans-serif;letter-spacing:.12em;text-transform:uppercase;color:#626a72;margin:0 0 10px}
.plain{background:#fff;border:1px solid #d8dcdf;padding:28px 32px;margin-bottom:40px}
.plain h1{font:700 32px/1.2 Arial,Helvetica,sans-serif;margin:0 0 12px}
.plain h2{font:700 20px/1.3 Arial,Helvetica,sans-serif;margin:26px 0 10px}
.plain p{max-width:70ch}
.plain ul.rows{list-style:none;margin:0;padding:0}
.plain ul.rows li{border-top:1px solid #d8dcdf;padding:10px 0}
.plain ul.rows .meta{display:block;font:400 12px/1.5 Courier New,monospace;color:#626a72;margin-top:3px}

@media (max-width:900px){
  .art{grid-template-columns:1fr;gap:22px}
  .topic-grid{grid-template-columns:1fr}
  .topic-col:nth-child(4){grid-column:auto}
  .topic-col:nth-child(4) ul{columns:1}
  .archive-grid{grid-template-columns:1fr}
  .kb-foot .cols{grid-template-columns:1fr 1fr}
  .ledger-2,ul.recent{columns:1}
}
@media (max-width:640px){
  .wrap{padding:0 16px}
  .kb-head .wrap{align-items:flex-start}
  .kb-nav{margin-left:0;width:100%;overflow-x:auto;gap:16px;flex-wrap:nowrap;padding-bottom:2px}
  .kb-nav a{white-space:nowrap}
  .kb-browse h1{font-size:28px}
  .chips a{font-size:13px}
  .body,.plain{padding:20px 16px}
  .body h1,.plain h1{font-size:26px}
  .kb-foot .cols{grid-template-columns:1fr}
}