:root{
  --black:#0E0E0E;--black-2:#161616;--yellow:#F4C400;--ink:#F2F2F0;
  --muted:#c3c5c8;--metall:#8C9096;--line:rgba(242,242,240,.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--black);color:var(--ink);
  font-family:"IBM Plex Sans",system-ui,sans-serif;font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--yellow)}
.wrap{max-width:820px;margin:0 auto;padding:0 22px}

/* Topbar */
.top{position:sticky;top:0;z-index:20;background:rgba(14,14,14,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;justify-content:space-between;height:62px;max-width:820px;margin:0 auto;padding:0 22px}
.brand{display:flex;align-items:center;gap:10px;font-family:"Archivo",system-ui,sans-serif;font-weight:900;font-size:22px;letter-spacing:.06em;color:var(--ink);text-decoration:none}
.brand i{width:14px;height:14px;background:var(--yellow);display:inline-block;transform:skewX(-12deg)}
.back{font-size:14.5px;font-weight:500;text-decoration:none;color:var(--muted)}
.back:hover{color:var(--ink)}

/* Content */
main{padding:48px 0 30px}
h1{font-family:"Archivo",system-ui,sans-serif;font-weight:900;letter-spacing:-.02em;
  font-size:clamp(32px,6vw,50px);line-height:1.05;margin:0 0 8px;color:#fff}
.lead{color:var(--muted);margin:0 0 34px}
h2{font-family:"Archivo",system-ui,sans-serif;font-weight:800;font-size:clamp(20px,3vw,25px);
  margin:38px 0 10px;color:var(--ink);letter-spacing:-.01em}
h3{font-family:"Archivo",system-ui,sans-serif;font-weight:700;font-size:18px;margin:22px 0 6px;color:var(--ink)}
p{margin:0 0 14px}
ul{margin:0 0 14px;padding-left:22px}li{margin:4px 0}
.muted{color:var(--metall);font-size:14.5px}
.card{background:var(--black-2);border:1px solid var(--line);border-radius:6px;padding:22px 24px;margin:0 0 22px}
.card p{margin:2px 0}
.note{border-left:3px solid var(--yellow);padding:12px 16px;background:rgba(244,196,0,.06);border-radius:0 4px 4px 0;color:var(--muted);font-size:14.5px;margin:20px 0}

footer{border-top:1px solid var(--line);margin-top:40px}
footer .wrap{padding:26px 22px;color:var(--metall);font-size:14px;display:flex;gap:18px;flex-wrap:wrap;justify-content:space-between}
footer a{color:var(--metall);text-decoration:none;margin-right:16px}
footer a:hover{color:var(--ink)}