<style>
:root{
  --navy:#1b2a4a; --navy2:#152038; --ink:#101725; --gold:#b8860b; --gold2:#e0b34d;
  --paper:#f4f5f8; --line:#dddddd; --muted:#555566;
  --green:#1e7a3c; --green-bg:#e7f4ea; --amber:#a5670a; --amber-bg:#fdf3e0; --red:#a32020; --red-bg:#fbeaea;
  --blue:#1f5fa8; --blue-bg:#e6eef8;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-size:15px;line-height:1.45}
a{color:var(--gold)}
code,kbd{font-family:Consolas,Menlo,monospace;font-size:.92em;background:#e9ecf3;padding:1px 5px;border-radius:3px}
/* hero */
.hero{background:var(--navy);color:#fff;border-bottom:5px solid var(--gold);padding:22px 28px}
.hero .wrap{max-width:1180px;margin:0 auto;display:flex;gap:18px;align-items:center}
.hero img{width:64px;height:auto}
.hero h1{margin:0;font-size:26px;line-height:1.15}
.hero h1 small{display:block;font-size:14px;font-weight:normal;color:var(--gold2);margin-top:4px}
.hero .meta{font-size:12px;color:#c9d1e3;margin-top:6px}
/* layout */
.layout{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:230px 1fr;gap:26px;padding:22px 20px}
nav.toc{position:sticky;top:12px;align-self:start;background:#fff;border:1px solid var(--line);border-top:4px solid var(--gold);padding:12px 12px 8px;font-size:13px}
nav.toc h3{margin:0 0 8px;font-size:13px;color:var(--navy)}
nav.toc a{display:block;color:var(--ink);text-decoration:none;padding:4px 6px;border-radius:3px}
nav.toc a:hover,nav.toc a:focus{background:var(--blue-bg);outline:none}
nav.toc a .n{color:var(--gold);font-weight:bold;margin-right:6px}
nav.toc a.sub{padding-left:26px;color:var(--muted)}
main{min-width:0}
/* sections */
section{background:#fff;border:1px solid var(--line);margin-bottom:22px;padding:0 0 12px}
.bar{background:var(--navy);color:#fff;padding:10px 16px;display:flex;align-items:center;gap:12px;font-size:17px;font-weight:bold}
.bar .n{color:var(--gold2);font-size:18px}
.bar .tag{margin-left:auto;font-size:11px;font-weight:normal;color:#c9d1e3}
.body{padding:14px 16px 4px}
h3{color:var(--navy);font-size:16px;margin:18px 0 8px;padding-bottom:4px;border-bottom:2px solid var(--gold)}
h4{color:var(--navy);font-size:14px;margin:14px 0 6px}
p{margin:6px 0 10px;max-width:78ch}
/* label tables */
table{border-collapse:collapse;width:100%;margin:8px 0 14px;font-size:13.5px}
td,th{border:1px solid var(--line);padding:6px 9px;vertical-align:top;text-align:left}
th{background:var(--navy);color:#fff;font-weight:bold}
table.lab td:first-child{background:var(--navy);color:#fff;font-weight:bold;width:150px}
table.data tr:nth-child(even) td{background:#f8f9fc}
table.data td b{color:var(--navy)}
/* tags */
.tag{display:inline-block;padding:1px 7px;border-radius:3px;font-size:11.5px;font-weight:bold;white-space:nowrap}
.ok{background:var(--green-bg);color:var(--green)} .warn{background:var(--amber-bg);color:var(--amber)} .bad{background:var(--red-bg);color:var(--red)} .info{background:var(--blue-bg);color:var(--blue)} .navy{background:#e4e8f1;color:var(--navy)}
/* callouts */
.callout{border-left:5px solid var(--gold);background:var(--amber-bg);padding:10px 14px;margin:10px 0 14px;font-size:14px}
.callout.green{border-color:var(--green);background:var(--green-bg)}
.callout.red{border-color:var(--red);background:var(--red-bg)}
.callout.blue{border-color:var(--blue);background:var(--blue-bg)}
.callout b.lead{display:block;margin-bottom:3px}
/* stat strip */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:10px 0 16px}
.stat{background:var(--navy);color:#fff;padding:12px 12px 10px;border-bottom:3px solid var(--gold)}
.stat .v{font-size:22px;font-weight:bold;color:var(--gold2)}
.stat .l{font-size:11.5px;color:#c9d1e3;margin-top:3px}
/* pipeline */
.pipe{display:flex;flex-wrap:wrap;gap:8px;align-items:stretch;margin:12px 0 16px}
.pipe .box{flex:1 1 160px;background:var(--navy);color:#fff;padding:10px 12px;border-bottom:3px solid var(--gold);font-size:13px}
.pipe .box b{display:block;color:var(--gold2);font-size:14px;margin-bottom:4px}
.pipe .arrow{align-self:center;color:var(--gold);font-size:22px;font-weight:bold}
/* figures */
figure{margin:12px 0 18px;border:1px solid var(--line);background:#fff}
figure img{display:block;width:100%;height:auto}
figcaption{padding:7px 10px;font-size:12.5px;color:var(--muted);background:#f8f9fc;border-top:1px solid var(--line)}
figcaption b{color:var(--navy)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
ul{margin:4px 0 10px;padding-left:20px}
li{margin:3px 0}
.legend{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13px;margin:6px 0 12px}
.legend span i{display:inline-block;width:22px;height:4px;vertical-align:middle;margin-right:6px}
footer{text-align:center;color:var(--muted);font-size:12px;padding:20px;border-top:3px solid var(--gold);background:#fff}
footer img{width:36px;vertical-align:middle;margin-right:8px}
@media (max-width:900px){.layout{grid-template-columns:1fr}nav.toc{position:static}.two{grid-template-columns:1fr}}
@media print{nav.toc{display:none}.layout{grid-template-columns:1fr}section{break-inside:avoid-page}}
/* narrated videos at the top of a guide (build_manual_html._videos_block) */
section.videos .vid-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:4px 0 8px}
@media (max-width:900px){section.videos .vid-grid{grid-template-columns:1fr}}
section.videos figure.vid{margin:0;min-width:0}
section.videos video{width:100%;aspect-ratio:16/9;background:#101725;border:1px solid var(--line);border-bottom:3px solid var(--gold);display:block}
section.videos figcaption{font-size:13.5px;color:var(--ink);padding:8px 2px 0;line-height:1.4}
section.videos figcaption b{color:var(--navy)}
section.videos figcaption .dur{float:right;color:var(--muted);font-size:12px;margin-left:10px;font-family:Consolas,Menlo,monospace}
section.videos details.vid-tr{margin:6px 2px 0;font-size:13px;color:var(--muted)}
section.videos details.vid-tr summary{cursor:pointer;color:var(--gold);font-weight:bold}
section.videos details.vid-tr p{max-width:none;margin:6px 0}
</style>
