:root{
  --bg:#061018;
  --bg-2:#0a1a24;
  --panel:#0d232e;
  --line:#173743;
  --fg:#e4f2f4;
  --muted:#8fadb8;
  --accent:#38e1c6;
  --accent-2:#6aa6ff;
  --serif:"Iowan Old Style",Georgia,"Times New Roman",serif;
  --sans:ui-sans-serif,-apple-system,"Segoe UI",Inter,system-ui,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,monospace;
  --radius:18px;
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:
    radial-gradient(1200px 600px at 15% -10%, #0b2b36 0%, transparent 60%),
    radial-gradient(900px 500px at 90% 0%, #0a2233 0%, transparent 55%),
    var(--bg);
  color:var(--fg);font:16px/1.65 var(--sans);-webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;line-height:1.1}
h1{font-family:var(--serif);font-weight:500;font-size:clamp(2.8rem,6.4vw,4.9rem);letter-spacing:-.02em}
h2{font-family:var(--serif);font-weight:500;font-size:clamp(1.9rem,3.6vw,2.8rem);letter-spacing:-.01em}
h3{font-size:1.08rem;font-weight:600}
p{margin:0}
.skip{position:absolute;left:-999px;background:var(--accent);color:#04161a;padding:.6rem 1rem;z-index:99}
.skip:focus{left:1rem;top:1rem}

.nav{
  position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:2rem;
  max-width:var(--max);margin:0 auto;padding:1.05rem 1.5rem;
  backdrop-filter:blur(14px);background:rgba(6,16,24,.72);border-bottom:1px solid transparent;transition:border-color .25s;
}
.nav.scrolled{border-color:var(--line)}
.brand{display:flex;align-items:center;gap:.55rem;font-weight:600;letter-spacing:-.01em}
.brand svg{width:25px;height:25px;fill:none;stroke:var(--accent);stroke-width:1.4}
.nav-links{display:flex;gap:1.6rem;margin-left:auto;font-size:.92rem;color:#bcd3da}
.nav-links a:hover{color:var(--accent)}
.nav-cta{display:flex;gap:.7rem;align-items:center}
.ghost{font-size:.92rem;color:#bcd3da}
.ghost:hover{color:#fff}
.menu{display:none;margin-left:auto;background:none;border:0;cursor:pointer;padding:.4rem}
.menu span{display:block;width:22px;height:2px;background:var(--fg);margin:5px 0}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  background:var(--accent);color:#04161a;border:1px solid var(--accent);border-radius:999px;
  padding:.8rem 1.45rem;font-size:.94rem;font-weight:600;transition:transform .18s,box-shadow .18s,background .18s;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 12px 30px -16px rgba(56,225,198,.8)}
.btn-sm{padding:.55rem 1.05rem;font-size:.86rem}
.btn-outline{background:transparent;color:var(--fg);border-color:var(--line)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-light{background:#eafffb;color:#04161a;border-color:#eafffb}

.hero{max-width:var(--max);margin:0 auto;padding:clamp(3rem,7vw,6rem) 1.5rem 2rem;display:grid;grid-template-columns:1.08fr .92fr;gap:3.5rem;align-items:center}
.eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:1.2rem}
.hero h1 em{font-style:italic;color:#bff5ea}
.lede{color:#b6ccd3;font-size:1.08rem;max-width:46ch;margin-top:1.4rem}
.search{
  display:flex;align-items:center;gap:.7rem;margin-top:2rem;background:rgba(10,26,36,.9);
  border:1px solid var(--line);border-radius:999px;padding:.65rem .9rem .65rem 1rem;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
}
.search svg{width:18px;height:18px;fill:none;stroke:var(--muted);stroke-width:1.6}
.search input{flex:1;background:none;border:0;outline:0;color:var(--fg);font-size:.98rem;font-family:var(--sans)}
.search input::placeholder{color:#6f8f9a}
.search kbd{font-family:var(--mono);font-size:.7rem;color:var(--muted);border:1px solid var(--line);border-radius:6px;padding:.15rem .4rem}
.chips{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.9rem}
.chips span{font-size:.76rem;color:#9dbbc3;border:1px solid var(--line);border-radius:999px;padding:.3rem .7rem;background:rgba(13,35,46,.5)}
.micro{font-size:.78rem;color:#6f8f9a;margin-top:1.2rem}

.hero-art{position:relative;min-height:380px;display:grid;place-items:center}
.graph{width:100%;max-width:440px}
.cite-card{
  position:absolute;right:-6px;bottom:0;width:min(300px,88%);background:rgba(10,28,37,.92);
  border:1px solid var(--line);border-radius:14px;padding:1rem 1.1rem;backdrop-filter:blur(10px);
  box-shadow:0 24px 60px -30px #000;
}
.cite-label{font-family:var(--mono);font-size:.66rem;text-transform:uppercase;letter-spacing:.12em;color:var(--accent)}
.cite-card p{font-size:.86rem;color:#d6e8ec;margin:.5rem 0 .6rem;line-height:1.45}
.cite-src{font-family:var(--mono);font-size:.68rem;color:#7fa1ab}

.strip{max-width:var(--max);margin:clamp(2rem,5vw,3.5rem) auto 0;padding:1.5rem 1.5rem;display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.strip div{display:grid;gap:.1rem}
.strip strong{font-family:var(--serif);font-size:1.55rem;color:#dff7f2}
.strip span{font-size:.76rem;color:var(--muted)}

.section{max-width:var(--max);margin:0 auto;padding:clamp(4rem,8vw,6.5rem) 1.5rem}
.section.alt{background:rgba(10,26,36,.55);border:1px solid var(--line);border-radius:28px;max-width:calc(var(--max) + 3rem);padding-inline:clamp(1.5rem,4vw,3rem)}
.section-head{max-width:48ch;margin-bottom:2.8rem}
.section-sub{color:#a9c3ca;margin-top:.9rem}

.features{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.feature{background:rgba(13,35,46,.6);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;display:grid;gap:.6rem}
.feature p{font-size:.9rem;color:#9fbbc3}
.icon{width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;background:rgba(56,225,198,.06)}
.icon svg{width:20px;height:20px;fill:none;stroke:var(--accent);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

.uses{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.use{border-top:1px solid var(--line);padding-top:1.1rem;display:grid;gap:.45rem}
.use p{font-size:.92rem;color:#9fbbc3}
.meta{font-family:var(--mono);font-size:.7rem;color:var(--accent);letter-spacing:.02em}

.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.steps li{border-top:1px solid var(--line);padding-top:1.1rem}
.num{font-family:var(--mono);font-size:.74rem;color:var(--accent);letter-spacing:.14em}
.steps h3{margin:.55rem 0 .45rem}
.steps p{font-size:.92rem;color:#9fbbc3}

.proof{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center;background:linear-gradient(150deg,#0c2833,#081820);border:1px solid var(--line);border-radius:28px;max-width:calc(var(--max) + 3rem);padding-inline:clamp(1.5rem,4vw,3rem)}
.proof p{color:#a9c3ca;margin-top:1rem;max-width:44ch}
.badges{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:1.4rem}
.badges span{font-size:.74rem;color:#bfe6df;border:1px solid #1d4a45;background:rgba(56,225,198,.08);border-radius:999px;padding:.3rem .7rem}
.quote{margin:0;background:rgba(6,16,24,.6);border:1px solid var(--line);border-radius:var(--radius);padding:1.7rem}
.quote blockquote{margin:0;font-family:var(--serif);font-size:1.15rem;line-height:1.5;color:#e9fbf7}
.quote figcaption{display:grid;gap:.1rem;margin-top:1.1rem;font-size:.78rem;color:#7fa1ab}
.quote figcaption strong{color:#dff7f2;font-size:.86rem}

.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;align-items:start}
.price-card{border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;background:rgba(13,35,46,.55);display:grid;gap:.65rem}
.price-card.featured{border-color:#2a6b64;background:linear-gradient(160deg,rgba(56,225,198,.1),rgba(13,35,46,.8));transform:translateY(-6px)}
.price{font-family:var(--serif);font-size:2.3rem;color:#eafffb}
.price span{font-family:var(--sans);font-size:.85rem;color:var(--muted)}
.pill{justify-self:start;font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:#9dbbc3;border:1px solid var(--line);border-radius:999px;padding:.2rem .6rem}
.pill.solid{background:var(--accent);color:#04161a;border-color:var(--accent)}
.muted{color:var(--muted);font-size:.88rem}
.price-card .btn{justify-content:center;margin-top:.5rem}

.cta{max-width:calc(var(--max) + 3rem);margin:0 auto 4rem;padding:0 1.5rem}
.cta-inner{background:linear-gradient(130deg,#0e3a44,#0a2233 55%,#123a52);border:1px solid #1d4a45;border-radius:28px;padding:clamp(2.4rem,5vw,3.8rem);text-align:center}
.cta-inner p{color:#a9c3ca;margin:.9rem 0 1.6rem}
.cta-inner .btn{margin-inline:auto}

.foot{max-width:var(--max);margin:0 auto;padding:2rem 1.5rem 3rem;border-top:1px solid var(--line)}
.foot-top{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;margin-bottom:1.2rem}
.foot nav{display:flex;gap:1.2rem;font-size:.86rem;color:#a9c3ca}

.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
}
@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:2.5rem}
  .hero-art{min-height:320px;order:2}
  .cite-card{right:0}
  .features,.steps,.pricing{grid-template-columns:1fr 1fr}
  .proof{grid-template-columns:1fr;gap:2rem}
  .strip{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .nav-links,.nav-cta{display:none}
  .menu{display:block}
  .nav-links.open{display:flex;position:absolute;top:100%;left:1rem;right:1rem;flex-direction:column;gap:1rem;background:#0b1e28;border:1px solid var(--line);border-radius:14px;padding:1.1rem}
  .features,.steps,.pricing,.uses{grid-template-columns:1fr}
  .price-card.featured{transform:none}
  .cite-card{position:static;width:auto;margin-top:1rem}
}