:root{
  --bg:#0b1020; --bg-soft:#111832; --card:#151d3b; --line:#233056;
  --ink:#eef2ff; --ink-soft:#9fb0d9; --ink-dim:#6f82b0;
  --brand:#4f7cff; --brand-2:#22d3a6; --warn:#ffb020;
  --radius:14px; --max:1140px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* header */
header{position:sticky;top:0;z-index:50;background:rgba(11,16,32,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo .mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center;font-size:15px;color:#07122a;font-weight:800}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{color:var(--ink-soft);font-size:15px;font-weight:500}
.nav-links a:hover{color:var(--ink);text-decoration:none}
.nav-cta{display:flex;gap:10px;align-items:center}
.btn{display:inline-block;padding:10px 18px;border-radius:10px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;transition:.15s}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:#3d6bf0}
.btn-ghost{border-color:var(--line);color:var(--ink-soft)}
.btn-ghost:hover{border-color:var(--brand);color:var(--ink)}
.btn-lg{padding:14px 26px;font-size:16px}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:8px 12px;font-size:18px}

/* hero */
.hero{padding:86px 0 70px;background:radial-gradient(900px 420px at 15% -10%,rgba(79,124,255,.20),transparent 60%),radial-gradient(700px 380px at 90% 0%,rgba(34,211,166,.13),transparent 55%)}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-2);border:1px solid rgba(34,211,166,.3);background:rgba(34,211,166,.08);padding:6px 12px;border-radius:999px;margin-bottom:22px}
h1{font-size:clamp(34px,5.2vw,54px);line-height:1.12;font-weight:800;letter-spacing:-.02em;margin-bottom:20px}
h1 .grad{background:linear-gradient(120deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{font-size:19px;color:var(--ink-soft);max-width:640px;margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:22px}
.hero-note{font-size:14px;color:var(--ink-dim)}

/* sections */
section{padding:74px 0;border-top:1px solid var(--line)}
.sec-head{max-width:680px;margin-bottom:44px}
h2{font-size:clamp(26px,3.4vw,36px);font-weight:750;letter-spacing:-.015em;margin-bottom:14px}
h3{font-size:19px;font-weight:650;margin-bottom:10px}
.sub{color:var(--ink-soft);font-size:17px}
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.card p{color:var(--ink-soft);font-size:15px}
.ico{width:42px;height:42px;border-radius:11px;background:rgba(79,124,255,.13);border:1px solid rgba(79,124,255,.28);display:grid;place-items:center;margin-bottom:16px;font-size:20px}

/* steps */
.steps{counter-reset:s}
.step{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.step:last-child{border-bottom:0}
.step-n{flex:0 0 38px;height:38px;border-radius:50%;background:rgba(79,124,255,.13);border:1px solid rgba(79,124,255,.35);color:var(--brand);display:grid;place-items:center;font-weight:700}
.step p{color:var(--ink-soft);font-size:15px}

/* table */
table{width:100%;border-collapse:collapse;font-size:15px}
th,td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--line)}
th{color:var(--ink-dim);font-size:13px;letter-spacing:.05em;text-transform:uppercase;font-weight:600}
td{color:var(--ink-soft)}
td strong{color:var(--ink)}

/* cta band */
.band{background:linear-gradient(120deg,rgba(79,124,255,.14),rgba(34,211,166,.10));border:1px solid var(--line);border-radius:18px;padding:46px;text-align:center}
.band h2{margin-bottom:12px}
.band p{color:var(--ink-soft);max-width:560px;margin:0 auto 26px}

/* footer */
footer{border-top:1px solid var(--line);padding:52px 0 30px;background:var(--bg-soft)}
.f-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:34px;margin-bottom:34px}
.f-col h4{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-dim);margin-bottom:14px;font-weight:600}
.f-col a{display:block;color:var(--ink-soft);font-size:15px;margin-bottom:9px}
.f-col a:hover{color:var(--ink);text-decoration:none}
.f-about{color:var(--ink-soft);font-size:15px;max-width:330px;margin-top:12px}
.f-bot{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--ink-dim);font-size:14px}

/* content pages */
.page{padding:60px 0 20px}
.page h1{font-size:clamp(30px,4.2vw,42px)}
.prose{max-width:780px}
.prose h2{font-size:24px;margin:38px 0 12px}
.prose h3{font-size:18px;margin:26px 0 8px}
.prose p,.prose li{color:var(--ink-soft);font-size:16px;margin-bottom:13px}
.prose ul,.prose ol{padding-left:22px;margin-bottom:16px}
.prose strong{color:var(--ink)}
.updated{color:var(--ink-dim);font-size:14px;margin-bottom:8px}
.callout{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:10px;padding:18px 20px;margin:22px 0}
.callout p{margin:0;font-size:15px}

@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}.f-grid{grid-template-columns:1fr 1fr}}
@media(max-width:680px){
  .nav-links{display:none}.menu-btn{display:block}
  .g3,.g4,.g2{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr}
  .band{padding:32px 22px}
  section{padding:54px 0}
  .hero{padding:58px 0 50px}
}