:root{
  --void:#060607;
  --carbon:#0C0D10;
  --ash:#14161B;
  --line:#22252C;
  --line-soft:#171A20;
  --steel:#878D9C;
  --steel-dim:#5A606E;
  --chalk:#F2F3F6;
  --volt:#1B4BFF;
  --volt-lite:#6B8CFF;
  --volt-deep:#050F33;
  --gut:clamp(16px,4.5vw,64px);
  --disp:"Oswald",Impact,sans-serif;
  --body:"Onest",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--void);
  color:var(--chalk);
  font-family:var(--body);
  font-weight:300;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.wrap{max-width:900px;margin:0 auto;padding-inline:var(--gut)}

/* topbar */
.topbar{
  position:sticky;top:0;z-index:40;
  background:rgba(6,6,7,.86);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.topbar .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:58px;
}
.back{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:10px;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;
  color:var(--steel);text-decoration:none;
  transition:color .2s;
}
.back:hover{color:var(--volt-lite)}
.back svg{width:13px;height:13px;flex:none}
.brand{
  font-family:var(--mono);font-size:10px;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--steel-dim);
}
@media(max-width:560px){.brand{display:none}}

/* head */
.dochead{
  padding-block:clamp(44px,7vw,92px) clamp(26px,3.6vw,44px);
  border-bottom:1px solid var(--line);
}
.kicker{
  font-family:var(--mono);font-size:10px;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;color:var(--volt-lite);
  margin:0 0 18px;
}
.dochead h1{
  font-family:var(--disp);
  font-size:clamp(28px,5.4vw,56px);
  font-weight:600;line-height:1.05;letter-spacing:.01em;
  text-transform:uppercase;margin:0;
}
.docmeta{
  margin:20px 0 0;
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--steel-dim);
  line-height:1.9;
}

/* body */
.docbody{padding-block:clamp(30px,4.5vw,56px) clamp(54px,7vw,100px)}
.docbody h2{
  font-family:var(--disp);
  font-size:clamp(17px,2.4vw,24px);
  font-weight:600;line-height:1.15;letter-spacing:.02em;
  text-transform:uppercase;
  margin:clamp(38px,5vw,60px) 0 18px;
  padding-top:clamp(20px,3vw,30px);
  border-top:1px solid var(--line-soft);
  color:var(--chalk);
}
.docbody h2:first-child{margin-top:0;border-top:0;padding-top:0}
.docbody h3{
  font-family:var(--body);
  font-size:15px;font-weight:700;
  margin:28px 0 12px;color:var(--chalk);
}
.docbody p,.docbody li{
  font-size:15px;line-height:1.72;color:#C4C8D2;
}
.docbody p{margin:0 0 14px}
.docbody ol,.docbody ul{margin:0 0 16px;padding-left:22px}
.docbody li{margin-bottom:9px}
.docbody b,.docbody strong{color:var(--chalk);font-weight:600}
.docbody a{color:var(--volt-lite);text-decoration:none;border-bottom:1px solid rgba(107,140,255,.35)}
.docbody a:hover{border-bottom-color:var(--volt-lite)}
.num{
  font-family:var(--mono);font-size:11px;font-weight:500;
  color:var(--steel-dim);letter-spacing:.06em;margin-right:8px;
}
.plate{
  border:1px solid var(--line);
  background:var(--carbon);
  padding:clamp(18px,2.6vw,26px);
  margin:22px 0;
}
.plate p:last-child{margin-bottom:0}
.plate-volt{
  border-color:rgba(27,75,255,.45);
  background:linear-gradient(160deg,rgba(27,75,255,.10),rgba(5,15,51,.35));
}
.req{font-family:var(--mono);font-size:12px;line-height:2;color:#C4C8D2;letter-spacing:.02em}
.req b{color:var(--chalk)}

/* footer */
.docfoot{
  border-top:1px solid var(--line);
  background:var(--carbon);
  padding-block:30px;
}
.docfoot .wrap{
  display:flex;flex-wrap:wrap;gap:14px 26px;
  align-items:center;justify-content:space-between;
}
.docfoot a{
  font-size:13px;color:var(--steel);text-decoration:none;
  border-bottom:1px solid transparent;transition:color .2s,border-color .2s;
}
.docfoot a:hover{color:var(--volt-lite);border-bottom-color:rgba(107,140,255,.4)}
.docfoot .mono{
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--steel-dim);
}
.doclinks{display:flex;flex-wrap:wrap;gap:8px 22px}