:root{
  color-scheme:dark;
  --bg:#080d14;
  --card:#101823;
  --line:#233246;
  --text:#eef5ff;
  --muted:#91a3b8;
  --accent:#56d9ff;
}
*{box-sizing:border-box}
body{
  margin:0;
  background:radial-gradient(circle at 50% -250px,#153149 0,#080d14 560px);
  color:var(--text);
  font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;
}
a{color:var(--accent);text-decoration:none}
.wrap{width:min(900px,calc(100% - 32px));margin:auto}
header{
  min-height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{color:var(--text);font-size:23px;font-weight:900;letter-spacing:-.03em}
.brand span{color:var(--accent)}
.back{color:var(--muted);font-size:14px}
main{padding:55px 0 90px}
.eyebrow{color:var(--accent);font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}
h1{margin:12px 0 18px;font-size:clamp(36px,6vw,58px);line-height:1;letter-spacing:-.05em}
.intro{max-width:760px;color:var(--muted);font-size:17px;line-height:1.65;margin-bottom:38px}
.doc{padding:30px;border:1px solid var(--line);border-radius:20px;background:rgba(16,24,35,.88)}
h2{margin:38px 0 14px;font-size:24px;letter-spacing:-.025em}
h2:first-child{margin-top:0}
h3{margin:24px 0 10px}
p,li{color:#c2cede;line-height:1.7}
li{margin:7px 0}
strong{color:var(--text)}
.note{margin:24px 0;padding:16px 18px;border:1px solid #29445e;border-radius:12px;background:#0d1c29}
.links{display:flex;gap:10px;flex-wrap:wrap;margin-top:35px}
.links a{padding:10px 13px;border:1px solid var(--line);border-radius:10px;color:#b9c9da}
footer{padding:25px 0 38px;border-top:1px solid var(--line);color:var(--muted);font-size:13px;line-height:1.6}
.footer-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.footer-links a{color:#b9c9da}
@media(max-width:650px){header{flex-direction:column;align-items:flex-start;padding:20px 0}main{padding-top:35px}.doc{padding:20px}}