:root{
  --navy:#0B0F18;
  --navy-2:#0F1420;
  --graphite:#1E2430;
  --line:rgba(248,250,252,.08);
  --papaya:#FF6A00;
  --hot:#FF3D00;
  --white:#F8FAFC;
  --mute:#B4BDCC;
  --display:"Satoshi","Inter",system-ui,sans-serif;
  --body:"Inter",system-ui,-apple-system,sans-serif;
  --gutter:clamp(16px,4vw,48px);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{background:var(--navy);color:var(--white);font-family:var(--body);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column;
  background-image:radial-gradient(ellipse 60% 40% at 80% 0%,rgba(255,106,0,.14),transparent 70%)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
.wrap{max-width:1240px;margin:0 auto;padding:0 var(--gutter);width:100%}
.narrow{max-width:780px}

.nav{position:sticky;top:0;z-index:50;background:rgba(11,15,24,.8);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.nav img{height:42px;width:auto}
.back{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:12px;border:1.5px solid rgba(248,250,252,.18);font-size:14px;font-weight:600;transition:border-color .25s,transform .25s var(--ease)}
.back:hover{border-color:var(--white);transform:translateY(-1px)}

main{flex:1;padding:80px 0 100px}
.eyebrow{font-weight:600;font-size:12px;letter-spacing:.32em;text-transform:uppercase;color:var(--mute)}
.dash{display:block;width:44px;height:4px;border-radius:2px;background:var(--papaya);margin:20px 0;box-shadow:0 0 16px rgba(255,106,0,.8)}
h1{font-family:var(--display);font-weight:900;font-style:italic;text-transform:uppercase;line-height:.92;font-size:clamp(44px,7vw,80px);letter-spacing:-.01em}
h1 .o{background:linear-gradient(100deg,#FFB347 0%,var(--papaya) 45%,var(--hot) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;padding-right:.08em}
.updated{margin-top:18px;color:var(--mute);font-size:14px}
.intro{margin-top:28px;font-size:18px;color:#E6EAF0}

.doc{margin-top:48px;display:grid;gap:14px}
.doc section{background:linear-gradient(160deg,#1C2230,#121722);border:1px solid var(--line);border-radius:20px;padding:26px 28px}
.doc h2{display:flex;gap:14px;align-items:baseline;font-family:var(--display);font-weight:900;font-size:19px;text-transform:uppercase;letter-spacing:.01em;margin-bottom:10px}
.doc h2 b{font-style:italic;color:var(--papaya);font-size:15px}
.doc p,.doc li{color:#D5DBE4;font-size:15.5px}
.doc p+p{margin-top:10px}
.doc ul{margin:10px 0 0 20px;display:grid;gap:6px}
.doc a,.inline-link{color:var(--papaya);font-weight:600}
.doc a:hover,.inline-link:hover{text-decoration:underline}

/* contact */
.contact-grid{margin-top:48px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.tile{background:linear-gradient(160deg,#1C2230,#121722);border:1px solid var(--line);border-radius:20px;padding:24px}
.tile .k{font-size:11px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--mute)}
.tile .v{margin-top:8px;font-weight:600;font-size:17px}
.tile .v a{color:var(--papaya)}
.topics{margin-top:14px;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.topic{display:flex;justify-content:space-between;align-items:center;gap:16px;background:linear-gradient(160deg,#1C2230,#121722);border:1px solid var(--line);border-radius:20px;padding:22px 24px;transition:transform .35s var(--ease),border-color .3s}
.topic:hover{transform:translateY(-4px);border-color:rgba(255,106,0,.5)}
.topic h3{font-family:var(--display);font-weight:900;font-size:17px;text-transform:uppercase}
.topic p{font-size:14px;color:var(--mute);margin-top:2px}
.topic .arrow{flex:none;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,#FFA040,var(--papaya) 50%,var(--hot));color:#140A02;box-shadow:0 8px 24px -6px rgba(255,106,0,.7)}

footer{border-top:1px solid var(--line);padding:32px 0;color:var(--mute);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
footer nav{display:flex;gap:24px}
footer nav a:hover,footer nav a[aria-current]{color:var(--white)}

@media (max-width:760px){
  main{padding:56px 0 72px}
  .doc section{padding:22px 20px}
  .contact-grid,.topics{grid-template-columns:1fr}
}