/* ============ Landing page ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#060818; --panel:#0e1226; --panel-2:#161b35;
  --text:#eef1fb; --muted:#9aa2bd;
  --primary:#7c5cff; --primary-2:#5d3fff;
  --accent:#00d4ff; --success:#22c55e;
  --border:rgba(255,255,255,.08);
}
html{scroll-behavior:smooth}
body{
  font:15px/1.6 'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:var(--bg); color:var(--text); overflow-x:hidden;
}
a{color:var(--accent); text-decoration:none}
h1,h2,h3,h4{font-family:'Sora','Inter',sans-serif; font-weight:700; letter-spacing:-.02em}
.container{max-width:1180px; margin:0 auto; padding:0 24px}
.container--narrow{max-width:760px}

/* 3D canvas - fixed behind hero */
#hero3d{
  position:fixed; top:0; left:0; width:100%; height:100vh; z-index:-1; pointer-events:none;
}

/* Nav */
.nav{
  position:sticky; top:0; z-index:30; backdrop-filter:blur(16px);
  background:rgba(6,8,24,.6); border-bottom:1px solid var(--border);
}
.nav__inner{
  max-width:1180px; margin:0 auto; padding:14px 24px;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.nav__logo{display:flex; align-items:center; gap:10px; color:var(--text); font-weight:700; font-size:17px}
.logo__img{display:block; width:34px; height:34px; border-radius:9px; box-shadow:0 4px 14px -2px var(--primary)}
.logo__mark{
  width:34px; height:34px; border-radius:9px; display:grid; place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent)); color:#fff; font-size:18px;
  box-shadow:0 4px 14px -2px var(--primary);
}
.logo__text strong{background:linear-gradient(135deg,var(--primary),var(--accent)); -webkit-background-clip:text; background-clip:text; color:transparent}
.nav__links{display:flex; align-items:center; gap:18px; font-size:14px}
.nav__links a{color:var(--muted); transition:.2s}
.nav__links a:hover{color:var(--text); text-decoration:none}

/* Mobile hamburger */
.nav__toggle{
  display:none; width:40px; height:40px; padding:0; background:transparent;
  border:1px solid var(--border); border-radius:9px; cursor:pointer;
  flex-direction:column; gap:4px; align-items:center; justify-content:center;
}
.nav__toggle span{
  display:block; width:18px; height:2px; background:var(--text); border-radius:1px;
  transition:.25s;
}
.nav__toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav__toggle.is-open span:nth-child(2){opacity:0}
.nav__toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; gap:6px; padding:10px 18px; border-radius:9px;
  border:1px solid var(--border); background:transparent; color:var(--text); font-size:14px; font-weight:500;
  cursor:pointer; text-decoration:none; transition:.2s;
}
.btn:hover{border-color:var(--primary); text-decoration:none}
.btn--primary{background:linear-gradient(135deg,var(--primary),var(--primary-2)); border-color:transparent; color:#fff; font-weight:600; box-shadow:0 8px 24px -8px var(--primary)}
.btn--primary:hover{filter:brightness(1.1); transform:translateY(-1px)}
.btn--ghost{background:rgba(255,255,255,.04)}
.btn--lg{padding:14px 28px; font-size:15px}

/* Hero */
.hero{
  min-height:100vh; display:flex; align-items:center; justify-content:center;
  padding:140px 24px 100px; text-align:center; position:relative;
}
.hero__inner{max-width:920px; margin:0 auto; position:relative; z-index:2}
.hero__badge{
  display:inline-block; padding:6px 14px; border-radius:999px;
  background:rgba(124,92,255,.12); border:1px solid rgba(124,92,255,.3);
  color:#c4b5ff; font-size:12px; font-weight:600; margin-bottom:24px;
}
.hero__title{
  font-size:clamp(36px,5vw,68px); line-height:1.05; font-weight:800; margin-bottom:24px;
  letter-spacing:-.03em;
}
.hero__title em{font-style:italic; color:var(--accent); font-weight:700}
.grad{
  background:linear-gradient(135deg,var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent; display:inline-block;
}
.hero__sub{font-size:clamp(16px,1.5vw,19px); color:var(--muted); max-width:680px; margin:0 auto 36px; line-height:1.6}
.hero__cta{display:flex; gap:14px; justify-content:center; flex-wrap:wrap; margin-bottom:60px}
.hero__stats{display:flex; gap:48px; justify-content:center; flex-wrap:wrap}
.stat__value{font-size:30px; font-weight:800; background:linear-gradient(135deg,var(--primary),var(--accent)); -webkit-background-clip:text; background-clip:text; color:transparent}
.stat__label{font-size:12px; color:var(--muted); margin-top:4px; text-transform:uppercase; letter-spacing:.05em}

/* Sections */
.section{padding:100px 0; position:relative}
.section--alt{background:linear-gradient(180deg,transparent, rgba(124,92,255,.04) 50%, transparent)}
.section__head{text-align:center; max-width:680px; margin:0 auto 60px}
.eyebrow{
  display:inline-block; padding:4px 12px; border-radius:999px;
  background:rgba(0,212,255,.1); border:1px solid rgba(0,212,255,.3);
  color:#67e8f9; font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:.1em; margin-bottom:16px;
}
.section__head h2{font-size:clamp(28px,3.5vw,42px); margin-bottom:14px}
.section__head p{color:var(--muted); font-size:16px}

/* Grid */
.grid{display:grid; gap:20px}
.grid--3{grid-template-columns:repeat(3,1fr)}

.card{
  background:var(--panel); border:1px solid var(--border); border-radius:14px;
  padding:28px; transition:.3s; position:relative; overflow:hidden;
}
.card::before{
  content:""; position:absolute; inset:0; border-radius:14px; padding:1px;
  background:linear-gradient(135deg,rgba(124,92,255,.3),transparent 40%);
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor; mask-composite:exclude; opacity:0; transition:.3s;
}
.card:hover{transform:translateY(-3px); border-color:rgba(124,92,255,.3)}
.card:hover::before{opacity:1}
.card__icon{
  width:48px; height:48px; border-radius:11px; display:grid; place-items:center; font-size:22px;
  background:linear-gradient(135deg,rgba(124,92,255,.2),rgba(0,212,255,.1)); color:var(--accent);
  margin-bottom:16px;
}
.card h3{font-size:17px; margin-bottom:8px}
.card p{color:var(--muted); font-size:14px; line-height:1.6}

/* Steps */
.steps{display:grid; grid-template-columns:repeat(4,1fr); gap:20px}
.step{position:relative; padding:24px; background:var(--panel); border:1px solid var(--border); border-radius:14px}
.step__num{
  width:40px; height:40px; border-radius:50%; display:grid; place-items:center; font-weight:800;
  background:linear-gradient(135deg,var(--primary),var(--accent)); color:#fff; margin-bottom:14px;
}
.step h3{font-size:16px; margin-bottom:8px}
.step p{color:var(--muted); font-size:14px}
.step code{background:rgba(255,255,255,.06); padding:1px 6px; border-radius:4px; font-size:12px; color:var(--accent)}

/* FAQ */
.faq{display:flex; flex-direction:column; gap:12px}
.faq details{
  background:var(--panel); border:1px solid var(--border); border-radius:11px; padding:18px 22px;
  transition:.2s;
}
.faq details[open]{border-color:rgba(124,92,255,.3)}
.faq summary{cursor:pointer; font-weight:600; font-size:15px; list-style:none; display:flex; justify-content:space-between; align-items:center}
.faq summary::after{content:"+"; color:var(--accent); font-size:18px; transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin-top:12px; color:var(--muted); line-height:1.6}
.faq details p a{color:var(--accent)}

/* Footer */
.footer{
  padding:60px 0 30px; border-top:1px solid var(--border);
  background:linear-gradient(180deg,transparent, rgba(124,92,255,.04));
}
.footer__inner{display:grid; grid-template-columns:2fr 1fr; gap:40px; margin-bottom:40px}
.footer__tagline{color:var(--muted); font-size:13px; margin-top:10px; max-width:380px}
.footer__cols{display:grid; grid-template-columns:1fr 1fr; gap:30px}
.footer__cols h4{font-size:13px; margin-bottom:14px; color:var(--text)}
.footer__cols a{display:block; color:var(--muted); font-size:13px; padding:3px 0; transition:.2s}
.footer__cols a:hover{color:var(--accent)}
.footer__bottom{text-align:center; color:var(--muted); font-size:12px; padding-top:24px; border-top:1px solid var(--border)}

/* Responsive */
@media(max-width:980px){
  .grid--3{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .footer__inner{grid-template-columns:1fr}
  .hero{padding:120px 20px 80px}
  .hero__title{font-size:clamp(28px,5.5vw,48px)}
  .hero__stats{gap:24px}
}
@media(max-width:768px){
  .nav__inner{padding:12px 16px}
  .nav__toggle{display:flex}
  .nav__links{
    position:absolute; top:100%; left:0; right:0; flex-direction:column;
    background:rgba(6,8,24,.98); backdrop-filter:blur(20px);
    border-bottom:1px solid var(--border); padding:16px; gap:8px;
    transform:translateY(-10px); opacity:0; pointer-events:none; transition:.25s;
  }
  .nav__links.is-open{transform:translateY(0); opacity:1; pointer-events:auto}
  .nav__links a{padding:10px 14px; border-radius:8px; width:100%}
  .nav__links a:hover{background:rgba(255,255,255,.04)}
  .nav__links .btn{width:100%; justify-content:center; margin-top:6px}
  .grid--3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .section{padding:70px 0}
  .section__head{margin-bottom:40px}
  .hero__cta{flex-direction:column; align-items:stretch}
  .hero__cta .btn{width:100%; justify-content:center}
  .footer__cols{grid-template-columns:1fr 1fr; gap:20px}
}
@media(max-width:480px){
  .hero{padding:100px 16px 60px}
  .hero__title{font-size:30px}
  .hero__sub{font-size:15px}
  .hero__stats{flex-direction:column; gap:18px}
  .stat__value{font-size:24px}
  .container{padding:0 16px}
  .card{padding:20px}
  .section__head h2{font-size:24px}
  .footer__cols{grid-template-columns:1fr}
}