:root{--bg:#0b0e14;--pnl:#121722;--ink:#eef2f8;--mut:#9aa6b8;--ln:#212836;--ac:#39d0d8;--ac2:#5b8cff;--ok:#37d67a}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--ac);text-decoration:none}a:hover{text-decoration:underline}
.w{max-width:1100px;margin:0 auto;padding:0 24px}
header{position:sticky;top:0;z-index:20;background:rgba(11,14,20,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--ln)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink)}
.brand:hover{text-decoration:none}
.logo{width:26px;height:26px;border-radius:7px;background:linear-gradient(135deg,var(--ac),var(--ac2))}
nav.links{display:flex;gap:24px;font-size:15px}nav.links a{color:var(--mut)}nav.links a:hover{color:var(--ink);text-decoration:none}
.btn{display:inline-block;background:linear-gradient(135deg,var(--ac),var(--ac2));color:#08121a;font-weight:700;padding:11px 20px;border-radius:10px;border:0;cursor:pointer}
.btn:hover{opacity:.92;text-decoration:none}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--ln)}
h1{font-size:52px;line-height:1.06;letter-spacing:-1.1px;margin:0 0 18px}
h2{font-size:32px;letter-spacing:-.4px;margin:0 0 10px}
h3{margin:0 0 6px;font-size:19px}
.lead{color:var(--mut);font-size:20px;max-width:60ch;margin:0 0 28px}
.sub{color:var(--mut);font-size:17px;margin:0 0 34px;max-width:62ch}
section{padding:60px 0;border-top:1px solid var(--ln)}
.center{text-align:center}.center .lead,.center .sub{margin-left:auto;margin-right:auto}
footer{border-top:1px solid var(--ln);padding:44px 0;color:var(--mut);font-size:14px}
.fcols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px;margin-bottom:24px}
.fcols h4{margin:0 0 12px;font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink)}
.fcols a{display:block;color:var(--mut);margin-bottom:8px}
@media(max-width:820px){h1{font-size:38px}nav.links{display:none}.fcols{grid-template-columns:1fr}}