@import url("https://fonts.googleapis.com/css2?family=Cormorant:ital,wght@0,500;0,600;0,700&family=Hanken+Grotesk:wght@300;400;500;600;700&display=swap");
:root{
  --night:#0d1320;
  --night-2:#141d30;
  --card:rgba(255,255,255,.04);
  --card-brd:rgba(255,255,255,.09);
  --blue:#5b8cff;
  --blue-soft:#9db9ff;
  --blue-deep:#2f4ed8;
  --accent:#5b8cff;
  --accent-2:#3a63e0;
  --ink:#eef2fb;
  --muted:rgba(238,242,251,.66);
  --faint:rgba(238,242,251,.42);
  --font-head:'Cormorant',Georgia,serif;
  --font-body:'Hanken Grotesk',system-ui,sans-serif;
  --maxw:1080px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--night);color:var(--ink);
  font-family:var(--font-body);font-weight:400;line-height:1.72;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;position:relative;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.wordmark{
  font-family:var(--font-head);font-weight:600;letter-spacing:-.02em;
  background:linear-gradient(100deg,var(--blue-deep) 6%,var(--blue) 50%,var(--blue-soft) 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  display:inline-block;padding-right:.12em;
}

/* nav */
nav{
  position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  padding:16px 28px;background:rgba(13,19,32,.78);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.07);
}
nav .brand{font-size:26px}
nav .back{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--muted);
  padding:9px 16px;border:1px solid var(--card-brd);border-radius:999px;transition:color .25s,border-color .25s,background .25s;
}
nav .back:hover{color:var(--ink);border-color:rgba(91,140,255,.45);background:rgba(255,255,255,.04)}
nav .back svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8}

/* hero band */
.doc-hero{position:relative;overflow:hidden;padding:84px 0 54px;border-bottom:1px solid rgba(255,255,255,.06)}
.doc-hero .glow{position:absolute;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,78,216,.35),transparent 65%);
  top:-280px;left:50%;transform:translateX(-50%);filter:blur(70px);pointer-events:none}
.doc-hero .eyebrow{
  font-size:12px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);
  display:inline-flex;align-items:center;gap:10px;margin-bottom:18px;position:relative;
}
.doc-hero .eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,transparent,var(--accent))}
.doc-hero h1{font-family:var(--font-head);font-weight:600;font-size:clamp(40px,6vw,68px);line-height:1.02;
  letter-spacing:-.01em;position:relative;margin-bottom:16px}
.doc-hero .updated{color:var(--faint);font-size:14px;position:relative}
.doc-hero .updated b{color:var(--muted);font-weight:600}

/* layout */
.doc-layout{display:grid;grid-template-columns:236px 1fr;gap:56px;padding:64px 0 100px;align-items:start}

/* toc */
.toc{position:sticky;top:92px}
.toc h5{font-size:11px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);margin-bottom:16px}
.toc a{display:block;font-size:14px;color:var(--muted);padding:7px 0 7px 14px;border-left:2px solid rgba(255,255,255,.08);
  transition:color .2s,border-color .2s}
.toc a:hover{color:var(--ink);border-color:var(--accent)}
.toc a.on{color:var(--accent);border-color:var(--accent);font-weight:600}

/* content */
.doc-body{max-width:680px}
.doc-body .lead{font-size:18px;color:var(--muted);margin-bottom:40px;
  padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.07)}
.doc-body section{margin-bottom:44px;scroll-margin-top:96px}
.doc-body h2{font-family:var(--font-head);font-weight:600;font-size:30px;letter-spacing:-.01em;
  margin-bottom:16px;display:flex;align-items:baseline;gap:14px}
.doc-body h2 .n{font-size:15px;font-weight:600;color:var(--accent);font-family:var(--font-body);
  border:1px solid rgba(91,140,255,.35);border-radius:8px;padding:2px 9px;flex:none;align-self:center}
.doc-body h3{font-family:var(--font-body);font-weight:600;font-size:17px;color:var(--ink);margin:24px 0 8px}
.doc-body p{color:var(--muted);font-size:16px;margin-bottom:14px}
.doc-body ul{list-style:none;margin:0 0 16px;padding:0}
.doc-body li{color:var(--muted);font-size:16px;padding-left:26px;position:relative;margin-bottom:10px}
.doc-body li::before{content:"";position:absolute;left:6px;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--accent)}
.doc-body a.link{color:var(--blue-soft);border-bottom:1px solid rgba(157,185,255,.4);transition:border-color .25s}
.doc-body a.link:hover{border-color:var(--blue-soft)}
.doc-body strong{color:var(--ink);font-weight:600}
.callout{background:var(--card);border:1px solid var(--card-brd);border-radius:16px;padding:22px 24px;margin:8px 0 16px;
  display:flex;gap:14px;align-items:flex-start}
.callout svg{width:22px;height:22px;flex:none;stroke:var(--accent);fill:none;stroke-width:1.6;margin-top:2px}
.callout p{margin:0;font-size:15px;color:var(--muted)}
.callout p b{color:var(--ink)}
.contact-card{background:var(--card);border:1px solid var(--card-brd);border-radius:18px;padding:26px 28px;margin-top:8px}
.contact-card h4{font-family:var(--font-head);font-weight:600;font-size:21px;margin-bottom:10px}
.contact-card .mail{display:inline-flex;align-items:center;gap:9px;color:var(--ink);font-size:15px;font-weight:500;
  padding-bottom:3px;border-bottom:1px solid rgba(91,140,255,.45);transition:border-color .3s}
.contact-card .mail:hover{border-color:var(--accent)}
.contact-card .mail svg{width:17px;height:17px;stroke:var(--accent);fill:none;stroke-width:1.6}

/* other docs */
.more-docs{border-top:1px solid rgba(255,255,255,.07);padding:36px 0 0;margin-top:8px}
.more-docs h5{font-size:11px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);margin-bottom:16px}
.more-docs .row{display:flex;flex-wrap:wrap;gap:12px}
.more-docs a{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);
  padding:10px 16px;border:1px solid var(--card-brd);border-radius:12px;transition:color .25s,border-color .25s,background .25s}
.more-docs a:hover{color:var(--ink);border-color:rgba(91,140,255,.45);background:rgba(255,255,255,.04)}

/* footer */
footer{border-top:1px solid rgba(255,255,255,.07);padding:40px 0;color:var(--faint);font-size:13px}
footer .row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px}
footer a:hover{color:var(--muted)}

@media (max-width:860px){
  .doc-layout{grid-template-columns:1fr;gap:0;padding-top:44px}
  .toc{display:none}
}
@media (max-width:560px){
  .wrap{padding:0 20px}
  nav{padding:14px 20px}
  .doc-hero{padding:60px 0 40px}
}