:root{
  --bg:#0b0d12; --bg2:#10131a; --card:#151922; --line:#252934;
  --text:#f8fafc; --muted:#9299ab; --accent:#818cf8; --accent2:#38bdf8;
  --r:16px;
  --font:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 var(--font);-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{width:min(1120px,100% - 32px);margin-inline:auto}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:#0b0d12;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}

/* topbar */
.topbar{position:sticky;top:0;z-index:50;background:rgba(11,13,18,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:1.1rem;letter-spacing:-.01em}
.brand b{color:var(--accent);font-weight:700}
.nav{display:flex;align-items:center;gap:26px;font-size:.94rem;color:var(--muted)}
.nav a:not(.btn):hover{color:var(--text)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:#0b0d12;font-weight:600;padding:13px 24px;border-radius:12px;border:1px solid transparent;transition:transform .15s,box-shadow .15s,background .15s;cursor:pointer}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px -10px rgba(129,140,248,.7)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--accent2);outline-offset:3px}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{background:var(--card);box-shadow:none}
.btn-sm{padding:8px 16px;font-size:.9rem;color:#0b0d12}
.btn-lg{padding:16px 34px;font-size:1.05rem}

/* hero */
.hero{position:relative;overflow:hidden;padding:104px 0 88px;
  background:radial-gradient(800px 420px at 80% -10%,rgba(129,140,248,.22),transparent 60%),
             radial-gradient(600px 360px at 0% 20%,rgba(56,189,248,.10),transparent 60%)}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;opacity:.18;mask-image:radial-gradient(ellipse at 50% 30%,#000 20%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse at 50% 30%,#000 20%,transparent 70%)}
.hero-in{position:relative}
.hero-in h1{max-width:820px}
.eyebrow{margin:0 0 14px;color:var(--accent);font-weight:600;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase}
h1{margin:0 0 20px;font-size:clamp(2.1rem,5.4vw,3.7rem);line-height:1.1;letter-spacing:-.03em}
.grad{background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{margin:0 0 30px;color:var(--muted);font-size:clamp(1.02rem,2vw,1.2rem);max-width:640px}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.chips{list-style:none;margin:40px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.chips li{border:1px solid var(--line);background:rgba(21,25,34,.7);padding:7px 14px;border-radius:999px;font-size:.88rem;color:var(--muted)}

/* sections */
.section{padding:88px 0}
.section.alt{background:var(--bg2);border-block:1px solid var(--line)}
h2{margin:0 0 40px;font-size:clamp(1.7rem,3.6vw,2.4rem);line-height:1.2;letter-spacing:-.02em;max-width:640px}
h3{margin:0 0 8px;font-size:1.12rem;letter-spacing:-.01em}
p{margin:0}
.grid{display:grid;gap:18px;grid-template-columns:repeat(2,1fr)}
.grid.g3{grid-template-columns:repeat(3,1fr)}
.card,.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px;transition:border-color .2s,transform .2s}
.card:hover,.feat:hover{border-color:var(--accent);transform:translateY(-3px)}
.card p,.feat p,.steps p{color:var(--muted);font-size:.97rem}
.ico{display:grid;place-items:center;width:46px;height:46px;border-radius:12px;background:rgba(129,140,248,.12);margin-bottom:18px}
.ico svg{width:24px;height:24px;fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.steps{list-style:none;margin:0;padding:0;display:grid;gap:18px;grid-template-columns:repeat(4,1fr)}
.steps li{border-top:2px solid var(--accent);padding-top:18px}
.num{display:block;font-size:.85rem;font-weight:700;color:var(--accent);margin-bottom:10px;letter-spacing:.1em}

.cta-final{background:radial-gradient(700px 300px at 50% 100%,rgba(129,140,248,.22),transparent 70%)}
.center{text-align:center}
.center h2,.center .lead{margin-inline:auto}
.center .lead{margin-bottom:28px}

.footer{border-top:1px solid var(--line);padding:26px 0;color:var(--muted);font-size:.88rem}
.foot-in{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}

/* mobile */
@media (max-width:860px){
  .steps{grid-template-columns:repeat(2,1fr)}
  .grid.g3{grid-template-columns:1fr}
}
@media (max-width:640px){
  .nav a:not(.btn){display:none}
  .hero{padding:72px 0 60px}
  .section{padding:64px 0}
  .grid,.steps{grid-template-columns:1fr}
  .cta .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important}
}