:root{
  --bg:#04070f; --bg2:#081120; --card:#0b1a2e; --card2:#0e2238;
  --line:#1c3a55; --text:#f4faff; --muted:#a9c3d9;
  --ice:#7ee7fc; --cyan:#22c8f5; --blue:#2f7df6; --deep:#0a4d8f;
  --radius:18px; --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}

/* Header */
header.site{position:sticky;top:0;z-index:60;background:rgba(4,7,15,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:64px}
.brand{font-weight:900;font-size:1.3rem;letter-spacing:.04em;text-decoration:none;white-space:nowrap;text-transform:uppercase}
.brand span{background:linear-gradient(90deg,var(--ice),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.brand small{display:block;font-size:.62rem;font-weight:700;letter-spacing:.24em;color:var(--muted)}
nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
nav ul a{display:block;padding:10px 12px;text-decoration:none;border-radius:10px;font-weight:600;font-size:.95rem;color:var(--muted)}
nav ul a:hover,nav ul a[aria-current="page"]{color:#fff;background:var(--card)}
.nav-cta{background:linear-gradient(90deg,var(--cyan),var(--blue));color:#04121f!important;font-weight:800}
.menu-btn{display:none;background:var(--card);color:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 14px;font-size:1rem;cursor:pointer}
@media (max-width:860px){
  .menu-btn{display:block}
  nav.main{display:none;position:absolute;left:0;right:0;top:64px;background:var(--bg2);border-bottom:1px solid var(--line);padding:10px 20px 16px}
  nav.main.open{display:block}
  nav.main ul{flex-direction:column}
  nav.main ul a{padding:12px}
}

/* Hero */
.hero{position:relative;padding:84px 0 120px;text-align:center;background:
  radial-gradient(700px 340px at 50% -10%,rgba(126,231,252,.28),transparent 60%),
  radial-gradient(900px 500px at 85% 10%,rgba(47,125,246,.20),transparent 55%),
  radial-gradient(700px 420px at 8% 20%,rgba(34,200,245,.14),transparent 55%),
  linear-gradient(180deg,#071426,var(--bg));border-bottom:1px solid var(--line);overflow:hidden}
.hero h1{font-size:clamp(2.9rem,10vw,6.2rem);line-height:.98;margin:0 0 10px;letter-spacing:-.02em;text-transform:uppercase;font-weight:900}
.hero h1 .freeze{background:linear-gradient(92deg,#fff,var(--ice) 55%,var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .tagline{font-size:clamp(1.25rem,4.6vw,2rem);font-weight:800;margin:0 0 14px;color:var(--ice)}
.lede{font-size:clamp(1.02rem,2.2vw,1.22rem);color:var(--muted);max-width:44rem;margin:0 auto 26px}
.lede strong{color:var(--text)}
.btns{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.btn{display:inline-block;padding:15px 24px;border-radius:999px;text-decoration:none;font-weight:800;border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:1rem}
.btn.primary{background:linear-gradient(90deg,var(--ice),var(--cyan) 60%,var(--blue));color:#03101d;border-color:transparent;box-shadow:0 8px 30px rgba(34,200,245,.35)}
.btn:hover{transform:translateY(-1px)}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:28px}
.chips span{border:1px solid var(--line);border-radius:999px;padding:6px 13px;background:rgba(126,231,252,.06);color:var(--ice);font-size:.88rem;font-weight:700}
/* animated plume wisps */
.plume{position:absolute;left:50%;top:-40px;width:150px;height:340px;transform:translateX(-50%);pointer-events:none;filter:blur(28px);opacity:.55}
.plume i{position:absolute;inset:0;border-radius:50%;background:radial-gradient(closest-side,rgba(255,255,255,.75),rgba(126,231,252,.25),transparent);animation:drift 5.5s ease-in-out infinite}
.plume i:nth-child(2){animation-delay:1.4s;transform:scale(.8)}
.plume i:nth-child(3){animation-delay:2.8s;transform:scale(1.15)}
@keyframes drift{0%{transform:translateY(-30px) scale(1);opacity:0}25%{opacity:.9}100%{transform:translateY(190px) scale(1.5);opacity:0}}
@media (prefers-reduced-motion:reduce){.plume i{animation:none}.btn:hover{transform:none}}

/* Sections */
section{padding:56px 0}
section.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:clamp(1.65rem,5vw,2.4rem);margin:0 0 10px;line-height:1.15;letter-spacing:-.01em}
h2 .hl{color:var(--ice)}
.sub{color:var(--muted);max-width:44rem;margin:0 0 28px;font-size:1.05rem}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card h3{margin:0 0 8px;font-size:1.14rem}
.card p{margin:0;color:var(--muted)}
.card p+p{margin-top:10px}
.icon{font-size:1.8rem;line-height:1;margin-bottom:12px}
.stat{text-align:center}
.stat b{display:block;font-size:clamp(2rem,6vw,2.9rem);line-height:1;background:linear-gradient(90deg,#fff,var(--ice));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{color:var(--muted);font-size:.94rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
@media (max-width:820px){.split{grid-template-columns:1fr}}
ul.check{list-style:none;margin:0;padding:0}
ul.check li{padding:9px 0 9px 32px;position:relative;color:var(--muted)}
ul.check li::before{content:"❄";position:absolute;left:0;color:var(--ice)}
ul.check li strong{color:var(--text)}
ol.steps{list-style:none;margin:0;padding:0;counter-reset:step}
ol.steps li{counter-increment:step;padding:14px 0 14px 58px;position:relative;color:var(--muted);border-bottom:1px solid var(--line)}
ol.steps li:last-child{border-bottom:0}
ol.steps li::before{content:counter(step);position:absolute;left:0;top:10px;width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--blue));color:#03101d;font-weight:900;display:flex;align-items:center;justify-content:center;font-size:1.1rem}
ol.steps li>strong:first-child{color:var(--text);display:block;font-size:1.05rem}
ol.steps li strong{color:var(--text)}

/* Media */
figure.shot{margin:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--card)}
figure.shot img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
figure.shot figcaption{padding:10px 14px;color:var(--muted);font-size:.86rem}
.video{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/9;background:#000}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}

/* Myth/fact + tables */
.myth{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:720px){.myth{grid-template-columns:1fr}}
.myth .card.bad{border-color:#5b2b3a}
.myth .card.good{border-color:#1e5b4a}
.tag{display:inline-block;font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;padding:4px 10px;border-radius:999px;margin-bottom:10px}
.tag.myth-t{background:#3d1622;color:#ff9db1}
.tag.fact-t{background:#0d3527;color:#7df0c3}

/* Page hero */
.page-hero{padding:56px 0 8px;text-align:left}
.page-hero h1{font-size:clamp(2.1rem,7vw,3.4rem);line-height:1.05;margin:0 0 12px;text-transform:uppercase;font-weight:900}
.page-hero h1 .freeze{background:linear-gradient(92deg,#fff,var(--ice) 55%,var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{color:var(--ice);font-weight:800;letter-spacing:.2em;text-transform:uppercase;font-size:.76rem;margin:0 0 12px}
.prose{max-width:48rem;color:var(--muted)}
.prose strong{color:var(--text)}
.prose a{color:var(--ice)}

/* CTA band */
.cta{background:linear-gradient(120deg,var(--deep),var(--blue) 55%,var(--cyan));border-radius:var(--radius);padding:36px 28px;text-align:center;color:#eaf7ff}
.cta h2{margin-bottom:8px}
.cta p{margin:0 auto 20px;max-width:36rem;color:#d6efff}
.cta .btn{background:#fff;color:#06345f;border-color:#fff;box-shadow:none}

/* Form */
form.netlify{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:780px}
form.netlify .full{grid-column:1/-1}
label{display:block;font-weight:700;margin-bottom:6px;font-size:.95rem}
label .opt{color:var(--muted);font-weight:500}
input,select,textarea{width:100%;padding:13px 14px;border-radius:12px;border:1px solid var(--line);background:var(--bg2);color:var(--text);font:inherit;font-size:16px}
textarea{min-height:120px;resize:vertical}
button[type=submit]{background:linear-gradient(90deg,var(--ice),var(--cyan) 60%,var(--blue));color:#03101d;border:0;padding:15px 26px;border-radius:999px;font-weight:900;font:inherit;cursor:pointer;width:100%}
@media (min-width:641px){button[type=submit]{width:auto}}
@media (max-width:640px){form.netlify{grid-template-columns:1fr}}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}

/* Footer + sticky mobile bar */
footer{border-top:1px solid var(--line);background:var(--bg2);padding:38px 0 96px;color:var(--muted);font-size:.93rem}
@media (min-width:821px){footer{padding-bottom:38px}}
.foot{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between}
footer a{color:var(--text);text-decoration:none;font-weight:700}
footer a:hover{text-decoration:underline}
.small{font-size:.84rem;color:#7390ab}
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;gap:10px;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(4,7,15,.94);backdrop-filter:blur(10px);border-top:1px solid var(--line)}
.mobile-cta a{flex:1;text-align:center;padding:13px 8px;border-radius:999px;text-decoration:none;font-weight:800;border:1px solid var(--line);background:var(--card)}
.mobile-cta a.go{background:linear-gradient(90deg,var(--ice),var(--blue));color:#03101d;border-color:transparent}
@media (max-width:820px){.mobile-cta{display:flex}}
.note{background:rgba(126,231,252,.07);border:1px solid var(--line);border-radius:12px;padding:16px 18px;color:var(--muted)}
.note strong{color:var(--text)}