:root{--bg:#0b0f17;--panel:#111827;--panel2:#0f1623;--line:#1f2a3a;--text:#e6ebf2;--muted:#93a1b5;--green:#22c55e;--green2:#16a34a;--red:#ef4444;--blue:#3b82f6;--gold:#e0b341;--cyan:#38bdf8}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font-family:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--green);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
header.top{border-bottom:1px solid var(--line);background:rgba(11,15,23,.92);position:sticky;top:0;z-index:5;backdrop-filter:blur(6px)}
.bar{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--text)}
.brand:hover{text-decoration:none}
.brand svg{width:30px;height:30px}
.brand b{color:var(--green)}
.bar-r{display:flex;align-items:center;gap:14px}
.guide-link{color:var(--text);font-weight:600;font-size:14px}
.pill{font-size:11px;font-weight:600;letter-spacing:.8px;text-transform:uppercase;color:var(--gold);border:1px solid rgba(224,179,65,.45);border-radius:999px;padding:4px 10px;white-space:nowrap}
.layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:36px;padding-top:28px;padding-bottom:40px}
.side{position:sticky;top:76px;align-self:start;max-height:calc(100vh - 96px);overflow:auto}
.navbox summary{font-size:12px;letter-spacing:.8px;text-transform:uppercase;color:var(--muted);font-weight:600;cursor:pointer;list-style:none;margin-bottom:8px}
.navbox summary::-webkit-details-marker{display:none}
.toc{display:flex;flex-direction:column;gap:2px}
.toc a{color:var(--muted);padding:7px 10px;border-radius:8px;font-size:14.5px;border-left:2px solid transparent}
.toc a:hover{color:var(--text);background:var(--panel);text-decoration:none}
.toc a[aria-current]{color:var(--text);background:var(--panel);border-left-color:var(--green)}
.doc{min-width:0;max-width:860px}
.doc h1{font-size:clamp(28px,4vw,40px);line-height:1.15;margin:0 0 10px;letter-spacing:-.4px}
.doc .lead{color:var(--muted);font-size:17.5px;margin:0 0 22px}
.doc h2{font-size:24px;margin:44px 0 10px;padding-top:6px;letter-spacing:-.2px;scroll-margin-top:80px}
.doc h3{font-size:17.5px;margin:28px 0 6px;scroll-margin-top:80px}
.doc p{margin:0 0 14px}
.doc ul,.doc ol{margin:0 0 16px;padding-left:22px}
.doc li{margin:4px 0}
.doc code,.k{font-family:Consolas,"Cascadia Mono",Menlo,monospace;font-size:.92em;background:var(--panel);border:1px solid var(--line);border-radius:5px;padding:1px 6px;white-space:nowrap}
.onpage{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:0 0 26px}
.onpage b{display:block;font-size:12px;letter-spacing:.8px;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.onpage ul{margin:0;padding-left:18px;columns:2;column-gap:28px}
.onpage li{margin:2px 0;break-inside:avoid}
figure{margin:18px 0 26px;background:var(--panel2);border:1px solid var(--line);border-radius:12px;overflow:hidden}
figure img{display:block;width:100%;height:auto;max-width:100%}
figure.narrow{max-width:560px}
figure.mid{max-width:760px}
figcaption{font-size:13.5px;color:var(--muted);padding:9px 14px;border-top:1px solid var(--line)}
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.scroll img{width:auto;max-width:none;height:auto}
table.opts{width:100%;border-collapse:collapse;margin:8px 0 22px;font-size:15px}
table.opts th,table.opts td{text-align:left;vertical-align:top;padding:9px 12px;border-bottom:1px solid var(--line)}
table.opts th{font-size:12px;letter-spacing:.6px;text-transform:uppercase;color:var(--muted);font-weight:600;background:var(--panel2)}
table.opts td:first-child{white-space:nowrap;font-weight:600;color:var(--text);width:1%}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px;margin:8px 0 22px}
.tablewrap table.opts{margin:0}
.tablewrap table.opts tr:last-child td{border-bottom:0}
.callout{border:1px solid;border-radius:12px;padding:14px 18px;margin:16px 0 22px}
.callout p:last-child{margin-bottom:0}
.callout.warn{border-color:rgba(239,68,68,.45);background:rgba(239,68,68,.07)}
.callout.info{border-color:rgba(56,189,248,.35);background:rgba(56,189,248,.06)}
.callout.good{border-color:rgba(34,197,94,.35);background:rgba(34,197,94,.06)}
.callout strong:first-child{display:block;margin-bottom:4px}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0 10px}
.cards a{display:block;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px;color:var(--text)}
.cards a:hover{border-color:#2d5a3f;text-decoration:none}
.cards a b{display:block;font-size:16.5px;margin-bottom:4px}
.cards a span{color:var(--muted);font-size:14.5px}
.pn{display:flex;justify-content:space-between;gap:12px;margin-top:48px;padding-top:18px;border-top:1px solid var(--line)}
.pn a{font-weight:600}
footer{border-top:1px solid var(--line);padding:26px 0 40px;color:var(--muted);font-size:13px}
footer p{margin:0 0 10px;max-width:920px}
footer .row{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;margin-top:14px}
@media (max-width:900px){
  .layout{grid-template-columns:1fr;gap:10px;padding-top:16px}
  .side{position:static;max-height:none}
  .navbox{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:10px 12px}
  .navbox summary{margin:0}
  .navbox[open] summary{margin-bottom:8px}
  .onpage ul{columns:1}
}
@media (max-width:560px){
  .cards{grid-template-columns:1fr}
  .pill{display:none}
  table.opts td:first-child{white-space:normal}
}
a.zoom{display:block;cursor:zoom-in}
a.zoom:hover{text-decoration:none}
/* ---- shared header links ---- */
.nav{display:flex;align-items:center;gap:18px}
.nav a{color:var(--text);font-weight:600;font-size:14px}
.nav a[aria-current]{color:var(--green)}
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:8px;background:var(--panel);padding:8px 12px;border-radius:8px;z-index:9}
/* ---- breadcrumbs ---- */
.crumbs{font-size:13.5px;color:var(--muted);margin:0 0 14px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--text)}
/* ---- home ---- */
.home h1{font-size:clamp(34px,5.4vw,56px);line-height:1.06;margin:0 0 18px;letter-spacing:-.6px}
.home h1 span{color:var(--green)}
.hero{padding:44px 0 26px;max-width:880px}
.hero .lead{font-size:clamp(16.5px,2vw,19.5px);color:var(--muted);margin:0 0 26px}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn{display:inline-block;background:var(--green2);color:#fff;font-weight:600;padding:12px 20px;border-radius:10px;border:1px solid var(--green)}
.btn:hover{background:var(--green);text-decoration:none}
.btn.ghost{background:transparent;color:var(--text);border-color:#2d3b50}
.btn.ghost:hover{background:var(--panel)}
.shot{margin:10px 0 0;background:var(--panel2);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 24px 70px rgba(0,0,0,.5)}
.shot .chrome{display:flex;gap:6px;padding:9px 12px;border-bottom:1px solid var(--line)}
.shot .chrome i{width:10px;height:10px;border-radius:50%;background:#2a3547;display:block}
.shot .chrome span{margin-left:8px;font-size:12px;color:var(--muted)}
.shot img{display:block;width:100%;height:auto}
.shot figcaption{border-top:1px solid var(--line)}
.home section{padding:46px 0}
.home h2{font-size:clamp(24px,3vw,32px);margin:0 0 8px;letter-spacing:-.3px}
.sub{color:var(--muted);margin:0 0 26px;max-width:760px}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px}
.card h3{margin:0 0 6px;font-size:17px}
.card p{margin:0 0 10px;color:var(--muted);font-size:15px}
.card .more{font-size:14px;font-weight:600}
.strip{display:flex;flex-wrap:wrap;gap:10px}
.tag{border:1px solid var(--line);background:var(--panel2);border-radius:999px;padding:7px 14px;font-size:14px}
.split{display:grid;grid-template-columns:1.35fr 1fr;gap:28px;align-items:start}
.side-intro{margin-top:46px}
.notify{background:linear-gradient(135deg,#0f1a14,#111827);border:1px solid #1d3a2a;border-radius:16px;padding:30px;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
.notify h2{margin:0 0 6px}
.notify p{margin:0;color:var(--muted)}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:0 0 10px}
.faq summary{cursor:pointer;font-weight:600}
.faq details p{margin:10px 0 0;color:var(--muted)}
/* ---- video player and library ---- */
.player{position:relative;background:#000;border:1px solid var(--line);border-radius:12px;overflow:hidden;aspect-ratio:16/9}
.player video{display:block;width:100%;height:100%;background:#000}
.player.tall{aspect-ratio:9/16;max-width:300px}
.vmeta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:14px;color:var(--muted);margin:12px 0 20px}
.vmeta b{color:var(--text);font-weight:600}
.chapters{list-style:none;padding:0;margin:0 0 22px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.chapters li{margin:0;border-bottom:1px solid var(--line)}
.chapters li:last-child{border-bottom:0}
.chapters button{all:unset;box-sizing:border-box;display:flex;gap:14px;width:100%;padding:10px 14px;cursor:pointer;color:var(--text);font-size:15px}
.chapters button:hover,.chapters button:focus-visible{background:var(--panel)}
.chapters time{font-family:Consolas,"Cascadia Mono",Menlo,monospace;color:var(--green);min-width:44px}
.shortbox{display:grid;grid-template-columns:auto minmax(0,1fr);gap:22px;align-items:start;background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:16px;margin:8px 0 24px}
.shortbox p{margin:0 0 8px;color:var(--muted)}
.transcript{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:12px 18px;margin:0 0 22px}
.transcript summary{cursor:pointer;font-weight:600}
.transcript h3{font-size:15.5px;margin:16px 0 4px}
.transcript p{color:var(--muted)}
.vgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:14px 0 30px}
.vcard{display:block;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;color:var(--text)}
.vcard:hover{border-color:#2d5a3f;text-decoration:none}
.vcard img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line)}
.vcard b{display:block;padding:10px 12px 2px;font-size:15px;line-height:1.35}
.vcard span{display:block;padding:0 12px 12px;color:var(--muted);font-size:13px}
.watch{display:flex;flex-direction:column;gap:6px;background:var(--panel2);border:1px solid var(--line);border-left:3px solid var(--green);border-radius:10px;padding:10px 14px;margin:6px 0 18px;font-size:14.5px}
.watch a{font-weight:600}
.watch a::before{content:"\25B6\00a0";font-size:11px;vertical-align:1px}
.watch small{color:var(--muted)}
.full{max-width:none}
@media (max-width:900px){.grid,.vgrid{grid-template-columns:1fr 1fr}.split{grid-template-columns:1fr}.side-intro{margin-top:0}}
@media (max-width:560px){.grid,.vgrid{grid-template-columns:1fr}.shortbox{grid-template-columns:1fr}.player.tall{max-width:none;width:70%;margin:0 auto}.nav{gap:12px}.home section{padding:34px 0}}
/* ---- Lite page: how-to steps ---- */
.steps{list-style:none;counter-reset:st;padding:0;margin:0;display:grid;gap:12px}
.steps li{counter-increment:st;position:relative;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px 16px 64px}
.steps li::before{content:counter(st);position:absolute;left:18px;top:16px;width:30px;height:30px;border-radius:50%;background:var(--green2);color:#fff;font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center}
.steps h3{margin:0 0 4px;font-size:17px}
.steps p{margin:0;color:var(--muted);font-size:15px}
.steps .vids{display:flex;flex-wrap:wrap;gap:4px 16px;margin-top:8px;font-size:14px;font-weight:600}
.home .tablewrap{background:var(--panel)}
@media (max-width:560px){.steps li{padding:14px 14px 14px 56px}.steps li::before{left:14px}}
.nav a{white-space:nowrap}
@media (max-width:430px){.bar{padding:12px 14px;gap:8px}.nav{gap:11px}.nav a{font-size:13px}.brand span{font-size:16px}.brand svg{width:28px;height:28px}}
/* 11 Oct 2026: the header's 'What you need' link is in the footer on phones (the bar has no room) */
@media (max-width:560px){.nav a.hm{display:none}}