:root{
  --abyss:#04070D;
  --hull:#080D17;
  --steel:#0E1523;
  --steel-2:#141D2E;
  --line:rgba(126,166,222,.14);
  --line-hot:rgba(46,155,255,.42);
  --ice:#EAF2FF;
  /* Measured against the card backgrounds, not just the page. The old
     --mute-2 (#61748F) came out at 3.5:1 on #141D2E, which fails for
     normal-size text and was unreadable at the 9-11px these are used at.
     Both are now comfortably past 4.5:1 on the darkest card. */
  --mute:#A8BDD8;
  --mute-2:#93A9C6;
  --volt:#2E9BFF;
  --volt-hot:#6FCBFF;
  --volt-deep:#0B57C4;
  --brass:#D2A93F;
  --rust:#C4562F;
  /* Used by every check mark. It was referenced in three places and defined in
     none, so var(--good) was invalid and the ticks silently inherited --ice and
     rendered white. 8.6:1 on --abyss, 7.2:1 on the darkest card. */
  --good:#39C07C;
  --r:4px;
  --maxw:1240px;
  --glow:0 0 0 1px rgba(46,155,255,.35), 0 0 28px -6px rgba(46,155,255,.55);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--abyss);color:var(--ice);
  font-family:'Barlow',system-ui,sans-serif;font-size:17px;line-height:1.62;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:'Saira Condensed',sans-serif;font-weight:800;line-height:1.04;margin:0;letter-spacing:.012em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}
.mono{font-family:'IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:.18em;font-size:13px;font-weight:500}

/* ---------- decorative grid + scanline atmosphere ---------- */
.grid-bg{position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(126,166,222,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(126,166,222,.045) 1px,transparent 1px);
  background-size:74px 74px;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 10%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 10%,transparent 78%);}
.noise{position:fixed;inset:0;pointer-events:none;z-index:1;opacity:.055;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");}
main,header,footer{position:relative;z-index:2}

/* ---------- ticker ---------- */
.ticker{background:linear-gradient(90deg,var(--volt-deep),#0a3f8f 60%,var(--volt-deep));
  border-bottom:1px solid rgba(255,255,255,.09);overflow:hidden;position:relative;z-index:40}
.ticker-in{display:flex;gap:56px;white-space:nowrap;animation:slide 34s linear infinite;padding:8px 0}
.ticker span{font-family:'IBM Plex Mono',monospace;font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;color:#DCEBFF}
.ticker span::before{content:"★";color:var(--volt-hot);margin-right:12px;font-size:11.5px}
@keyframes slide{to{transform:translateX(-50%)}}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(4,7,13,.78);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);transition:background .3s}
.nav{display:flex;align-items:center;gap:28px;height:76px}
.logo img{height:56px;width:auto}
.nav-links{display:flex;gap:26px;margin-left:auto}
.nav-links a{font-family:'Saira Condensed',sans-serif;font-weight:600;font-size:15.5px;text-transform:uppercase;
  letter-spacing:.06em;color:var(--mute);padding:6px 0;position:relative;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--volt);transition:width .28s}
.nav-links a:hover{color:var(--ice)}
.nav-links a:hover::after{width:100%}
.btn{display:inline-flex;align-items:center;gap:10px;font-family:'Saira Condensed',sans-serif;font-weight:700;
  text-transform:uppercase;letter-spacing:.07em;font-size:15.5px;padding:13px 24px;border-radius:var(--r);
  border:1px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap}
.btn-primary{background:var(--volt);color:#03080F;box-shadow:0 0 24px -6px rgba(46,155,255,.75)}
.btn-primary:hover{background:var(--volt-hot);box-shadow:0 0 34px -4px rgba(111,203,255,.9);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line-hot);color:var(--ice);background:rgba(46,155,255,.05)}
.btn-ghost:hover{background:rgba(46,155,255,.14);border-color:var(--volt)}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--ice);
  border-radius:var(--r);padding:9px 11px;cursor:pointer}
.burger span{display:block;width:20px;height:2px;background:var(--ice);margin:4px 0}

/* ---------- hero ---------- */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden;
  border-bottom:1px solid var(--line)}
.hero-img{position:absolute;inset:0;z-index:0}
.hero-img img{width:100%;height:100%;object-fit:cover;object-position:center;opacity:.6}
.hero-img::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,var(--abyss) 6%,rgba(4,7,13,.9) 38%,rgba(4,7,13,.28) 72%,rgba(4,7,13,.72)),
             linear-gradient(0deg,var(--abyss),transparent 42%)}
.hero-in{position:relative;z-index:2;padding:96px 0 122px;max-width:730px}
/* .hero is display:flex, which makes .wrap a flex item and therefore
   shrink-to-fit rather than the usual 1240 grid. It had been sized by whatever
   the longest headline happened to be; when the headline got shorter the block
   narrowed to 593px and the fourth stat dropped onto its own row. Pin it to the
   width .hero-in actually asks for (730 + the wrap's 2x26 padding). */
.hero .wrap{min-width:min(782px,100%)}
.eyebrow{display:inline-flex;align-items:center;gap:11px;color:var(--volt-hot);margin-bottom:26px}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--volt)}
h1{font-size:clamp(44px,6.6vw,86px);letter-spacing:-.012em}
h1 em{font-style:normal;color:var(--volt);text-shadow:0 0 34px rgba(46,155,255,.6)}
.hero p.lede{font-size:19.5px;color:var(--mute);max-width:560px;margin:26px 0 36px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.spec-strip{display:flex;flex-wrap:wrap;gap:0;margin-top:56px;border-top:1px solid var(--line)}
.spec-strip div{flex:1 1 150px;padding:20px 22px 20px 0;border-right:1px solid var(--line)}
.spec-strip div:last-child{border-right:0}
.spec-strip b{display:block;font-family:'Saira Condensed',sans-serif;font-size:27px;font-weight:800;color:var(--ice);line-height:1}
.spec-strip small{display:block;color:var(--mute-2);margin-top:7px;font-family:'IBM Plex Mono',monospace;
  font-size:12px;letter-spacing:.15em;text-transform:uppercase}
.spec-strip .tick{color:var(--good);font-family:'Barlow',sans-serif;font-weight:700;
  font-size:.66em;margin-right:10px;vertical-align:.12em}

/* ---------- generic section ---------- */
section{padding:104px 0;position:relative}
.sec-head{max-width:720px;margin-bottom:56px}
.sec-head .mono{color:var(--volt);display:block;margin-bottom:16px}
.sec-head h2{font-size:clamp(32px,4.4vw,54px)}
.sec-head p{color:var(--mute);font-size:18px;margin:20px 0 0}

/* ---------- problem ---------- */
.problem{background:
  radial-gradient(ellipse 70% 90% at 88% 50%,rgba(196,86,47,.14),transparent 62%),
  linear-gradient(180deg,var(--hull),var(--abyss))}
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:64px;align-items:center}
.figure{position:relative;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  box-shadow:0 40px 90px -50px #000}
.figure img{width:100%;height:100%;object-fit:cover}
.figure figcaption{position:absolute;left:0;bottom:0;right:0;padding:16px 18px;
  background:linear-gradient(0deg,rgba(4,7,13,.94),transparent);color:var(--mute);
  font-family:'IBM Plex Mono',monospace;font-size:12.5px;letter-spacing:.13em;text-transform:uppercase}
.corner{position:absolute;width:16px;height:16px;border:1px solid var(--volt);z-index:3}
.corner.tl{top:10px;left:10px;border-right:0;border-bottom:0}
.corner.br{bottom:10px;right:10px;border-left:0;border-top:0}
.pain{border-left:2px solid var(--line);padding:2px 0 2px 26px;margin-bottom:30px;transition:border-color .3s}
.pain:hover{border-color:var(--volt)}
.pain h3{font-size:22px;margin-bottom:9px}
.pain h3 span{font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--volt);
  letter-spacing:.16em;margin-right:12px;vertical-align:middle}
.pain p{color:var(--mute);margin:0;font-size:16.5px}

/* ---------- how it works ---------- */
.how{background:var(--hull);border-block:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.step{padding:40px 34px;border-right:1px solid var(--line);position:relative;background:
  linear-gradient(180deg,rgba(46,155,255,.045),transparent 55%);transition:background .35s}
.step:last-child{border-right:0}
.step:hover{background:linear-gradient(180deg,rgba(46,155,255,.13),transparent 65%)}
.step .num{font-family:'Saira Condensed',sans-serif;font-weight:800;font-size:60px;line-height:.85;
  color:transparent;-webkit-text-stroke:1.4px var(--line-hot);margin-bottom:22px;display:block}
.step:hover .num{-webkit-text-stroke-color:var(--volt);color:rgba(46,155,255,.08)}
.step h3{font-size:23px;margin-bottom:11px}
.step p{color:var(--mute);font-size:16px;margin:0}

/* ---------- engine configurator (signature piece) ---------- */
.config{background:linear-gradient(180deg,var(--abyss),var(--hull) 60%,var(--abyss))}
.panel{border:1px solid var(--line);border-radius:var(--r);background:
  linear-gradient(160deg,var(--steel-2),var(--steel) 60%,var(--hull));
  box-shadow:0 60px 120px -70px #000, inset 0 1px 0 rgba(255,255,255,.045);overflow:hidden}
.panel-top{display:flex;align-items:center;gap:14px;padding:15px 22px;border-bottom:1px solid var(--line);
  background:rgba(4,7,13,.5)}
.led{width:8px;height:8px;border-radius:50%;background:var(--volt);box-shadow:0 0 12px var(--volt);
  animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.32}}
.panel-top .mono{color:var(--mute)}
.panel-top .mono.right{margin-left:auto;color:var(--volt-hot)}
.panel-body{display:grid;grid-template-columns:1fr 1.25fr;gap:0}
.panel-ctrl{padding:38px 34px;border-right:1px solid var(--line)}
.panel-ctrl h3{font-size:27px;margin-bottom:8px}
.panel-ctrl>p{color:var(--mute);font-size:16px;margin:0 0 28px}
.dial{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:30px}
.dial button{width:52px;height:52px;border-radius:var(--r);border:1px solid var(--line);
  background:rgba(4,7,13,.6);color:var(--mute);font-family:'Saira Condensed',sans-serif;font-weight:800;
  font-size:21px;cursor:pointer;transition:.22s}
.dial button:hover{border-color:var(--line-hot);color:var(--ice)}
.dial button[aria-pressed="true"]{background:var(--volt);color:#03080F;border-color:var(--volt);
  box-shadow:0 0 22px -4px rgba(46,155,255,.85)}
.readout{border:1px solid var(--line);border-radius:var(--r);background:rgba(4,7,13,.55)}
.readout div{display:flex;justify-content:space-between;gap:16px;padding:12px 16px;border-bottom:1px solid var(--line)}
.readout div:last-child{border-bottom:0}
.readout dt{color:var(--mute-2);font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.15em;text-transform:uppercase;margin:0}
.readout dd{margin:0;font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--volt-hot);font-weight:500}
.panel-vis{padding:34px;display:flex;align-items:center;justify-content:center;background:
  radial-gradient(ellipse 60% 70% at 50% 50%,rgba(46,155,255,.11),transparent 70%)}
.panel-vis svg{width:100%;height:auto;max-height:400px}
.port-body{fill:#0B1220;stroke:rgba(126,166,222,.28);stroke-width:1.4}
.port-body.on{stroke:var(--volt);filter:drop-shadow(0 0 7px rgba(46,155,255,.9))}
.port-label{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.1em;fill:var(--mute-2)}
.port-label.on{fill:var(--volt-hot)}
.hose{fill:none;stroke:rgba(126,166,222,.2);stroke-width:3.4;stroke-linecap:round}
.hose.on{stroke:url(#flowgrad);stroke-dasharray:9 11;animation:flow 1.05s linear infinite}
@keyframes flow{to{stroke-dashoffset:-20}}
/* The unit flushes one engine at a time, so a running cycle shows three
   states: flushing now (.on, animated), already finished (.done, steady
   green), and still waiting its turn (.queued, dim). */
.hose.done{stroke:rgba(57,192,124,.55)}
.hose.queued{stroke:rgba(126,166,222,.18)}
.eng{fill:#0A1120;stroke:rgba(126,166,222,.22);stroke-width:1.2}
.eng.on{stroke:var(--volt);fill:rgba(46,155,255,.09)}
.eng.active{stroke:var(--volt-hot);stroke-width:2;fill:rgba(46,155,255,.18);
  filter:drop-shadow(0 0 9px rgba(46,155,255,.55))}
.eng.done{stroke:rgba(57,192,124,.6);fill:rgba(57,192,124,.08)}

/* ---------- features ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.feat{background:var(--hull);padding:32px 26px;transition:background .3s}
.feat:hover{background:var(--steel)}
.feat svg{width:26px;height:26px;stroke:var(--volt);fill:none;stroke-width:1.6;margin-bottom:18px}
.feat h3{font-size:18.5px;margin-bottom:9px}
.feat p{color:var(--mute);font-size:15.5px;margin:0}

/* ---------- warranty band ---------- */
.band{position:relative;overflow:hidden;border-block:1px solid var(--line)}
.band-img{position:absolute;inset:0}
.band-img img{width:100%;height:100%;object-fit:cover;opacity:.3}
.band-img::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,var(--abyss) 12%,rgba(4,7,13,.72) 52%,rgba(4,7,13,.45))}
.band .wrap{position:relative;z-index:2}
.band-in{max-width:640px;padding:96px 0}
.band-in h2{font-size:clamp(30px,4vw,48px);margin-bottom:20px}
.band-in p{color:var(--mute);font-size:18px;margin:0 0 30px}

/* ---------- specs table ---------- */
.specs{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px}
.specs dl{margin:0;display:contents}
.spec-row{display:flex;justify-content:space-between;gap:20px;padding:16px 0;border-bottom:1px solid var(--line)}
.spec-row dt{color:var(--mute);font-size:16px;margin:0}
.spec-row dd{margin:0;font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--ice);
  letter-spacing:.06em;text-align:right}
.spec-row dd.yes{color:var(--volt-hot)}

/* ---------- trust ---------- */
.trust{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tcard{border:1px solid var(--line);border-radius:var(--r);padding:34px 30px;
  background:linear-gradient(170deg,var(--steel),var(--hull));position:relative;overflow:hidden;transition:.3s}
.tcard::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--line-hot),transparent);opacity:0;transition:opacity .35s}
.tcard:hover{transform:translateY(-4px);border-color:var(--line-hot)}
.tcard:hover::before{opacity:1}
.tcard .mono{color:var(--brass);display:block;margin-bottom:16px}
.tcard h3{font-size:21px;margin-bottom:11px}
.tcard p{color:var(--mute);font-size:16px;margin:0}
.tcard a{color:var(--volt-hot);border-bottom:1px solid rgba(111,203,255,.35)}

/* ---------- CTA ---------- */
.cta{text-align:center;background:
  radial-gradient(ellipse 60% 100% at 50% 100%,rgba(46,155,255,.18),transparent 68%),var(--hull);
  border-top:1px solid var(--line)}
.cta h2{font-size:clamp(34px,5vw,62px);margin-bottom:20px}
.cta p{color:var(--mute);font-size:19px;max-width:520px;margin:0 auto 34px}
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- footer ---------- */
footer{background:var(--abyss);border-top:1px solid var(--line);padding:64px 0 30px}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr .8fr;gap:40px;margin-bottom:48px}
@media(max-width:1000px){.f-grid{grid-template-columns:1fr 1fr;gap:34px}}
footer img.flogo{height:46px;margin-bottom:20px}
footer p{color:var(--mute);font-size:15.5px;margin:0 0 8px}
footer h4{font-size:15px;color:var(--ice);margin-bottom:16px;letter-spacing:.08em}
footer ul{list-style:none;padding:0;margin:0}
footer li{margin-bottom:10px}
footer li a{color:var(--mute);font-size:15.5px;transition:color .2s}
footer li a:hover{color:var(--volt-hot)}
.f-bot{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;color:var(--mute-2);font-family:'IBM Plex Mono',monospace;font-size:12px;
  letter-spacing:.13em;text-transform:uppercase}

/* ---------- demo notice ---------- */
.demo-note{background:rgba(210,169,63,.09);border:1px solid rgba(210,169,63,.32);border-radius:var(--r);
  padding:15px 20px;margin:0 auto 0;max-width:var(--maxw);color:#E7CE86;font-family:'IBM Plex Mono',monospace;
  font-size:13px;letter-spacing:.09em;line-height:1.7}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .nav-links{display:none}
  .nav-links.open{display:flex;position:absolute;top:76px;left:0;right:0;flex-direction:column;
    background:var(--hull);border-bottom:1px solid var(--line);padding:18px 26px;gap:4px}
  .nav-links.open a{padding:11px 0;font-size:17px}
  .burger{display:block}
  .nav .btn-primary{display:none}
  .split{grid-template-columns:1fr;gap:40px}
  .steps{grid-template-columns:1fr}
  .step{border-right:0;border-bottom:1px solid var(--line)}
  .step:last-child{border-bottom:0}
  .panel-body{grid-template-columns:1fr}
  .panel-ctrl{border-right:0;border-bottom:1px solid var(--line)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .trust{grid-template-columns:1fr}
  .specs{grid-template-columns:1fr;gap:0}
  .f-grid{grid-template-columns:1fr;gap:32px}
}
@media(max-width:560px){
  body{font-size:16px}
  section{padding:72px 0}
  .hero{min-height:auto}
  .hero-in{padding:64px 0 56px}
  .hero-img img{object-position:center;opacity:.4}
  .feat-grid{grid-template-columns:1fr}
  .spec-strip div{flex:1 1 50%;border-right:0;padding:16px 0}
  .btn{width:100%;justify-content:center}
  .cta-row .btn,.hero-cta .btn{width:100%}
}
@media(prefers-reduced-motion:reduce){
  .flow{display:none}
  *{animation:none!important;transition:none!important}
  .rv{opacity:1;transform:none}
}

/* ============================================================
   EXCITEMENT LAYER
   ============================================================ */

/* scroll progress */
.progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:99;
  background:linear-gradient(90deg,var(--volt-deep),var(--volt),var(--volt-hot));
  box-shadow:0 0 14px rgba(46,155,255,.8);transition:width .08s linear}

/* --- hero drama --- */
.hero-img img{transform:scale(1.03)}
/* Flow arrows riding the hoses in the hero photograph. The overlay has to crop
   identically to the image beneath it, so it carries the same scale as
   .hero-img img and relies on preserveAspectRatio="slice" to match object-fit:cover. */
/* width/height are not optional here. An <svg> is a replaced element, so
   inset:0 alone does NOT stretch it — it falls back to its intrinsic size
   (viewBox ratio x the container width), which left the overlay 26px lower
   than the photograph and the arrows floating beside the hoses. */
.flow{position:absolute;inset:0;width:100%;height:100%;z-index:1;pointer-events:none;
  mix-blend-mode:screen;transform:scale(1.03)}
.flow .chev path{
  fill:none;stroke:#DCF1FF;stroke-width:4;stroke-linecap:round;stroke-linejoin:round;
  filter:drop-shadow(0 0 4px #9BDBFF) drop-shadow(0 0 12px #2E9BFF) drop-shadow(0 0 22px #2E9BFF);
}

/* headline word reveal */
h1 .w{display:inline-block;opacity:0;transform:translateY(28px) rotate(2deg);
  animation:wordin .78s cubic-bezier(.16,.9,.3,1) forwards}
@keyframes wordin{to{opacity:1;transform:none}}
h1 em{position:relative}
h1 em::after{content:"";position:absolute;left:0;bottom:.06em;height:4px;width:0;
  background:linear-gradient(90deg,var(--volt),transparent);
  animation:ul 1.1s .9s cubic-bezier(.2,.8,.3,1) forwards}
@keyframes ul{to{width:100%}}

.hero .eyebrow,.hero p.lede,.hero-cta,.spec-strip{opacity:0;animation:fadeUp .8s cubic-bezier(.16,.9,.3,1) forwards}
.hero .eyebrow{animation-delay:.05s}
.hero p.lede{animation-delay:.62s}
.hero-cta{animation-delay:.78s}
.spec-strip{animation-delay:.94s}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}

/* scroll cue */
.cue{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:9px;opacity:0;
  animation:fadeUp .8s 1.5s forwards}
.cue span{font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--mute-2)}
.cue i{display:block;width:1px;height:38px;background:linear-gradient(var(--volt),transparent);
  position:relative;overflow:hidden}
.cue i::after{content:"";position:absolute;top:-38px;left:0;width:1px;height:38px;
  background:var(--volt-hot);animation:cuedrop 1.9s ease-in-out infinite}
@keyframes cuedrop{0%{top:-38px}60%,100%{top:38px}}

/* buttons: shine sweep */
.btn-primary{position:relative;overflow:hidden}
.btn-primary::after{content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);animation:shine 4.6s ease-in-out infinite}
@keyframes shine{0%,68%{left:-120%}86%,100%{left:180%}}

/* --- kinetic marquee band --- */
.kinetic{padding:0;border-block:1px solid var(--line);overflow:hidden;
  background:linear-gradient(180deg,var(--abyss),var(--hull));position:relative}
.kinetic::before,.kinetic::after{content:"";position:absolute;top:0;bottom:0;width:16%;z-index:2;pointer-events:none}
.kinetic::before{left:0;background:linear-gradient(90deg,var(--abyss),transparent)}
.kinetic::after{right:0;background:linear-gradient(270deg,var(--abyss),transparent)}
.kin-row{display:flex;white-space:nowrap;gap:0;padding:26px 0}
.kin-row b{font-family:'Saira Condensed',sans-serif;font-weight:800;text-transform:uppercase;
  font-size:clamp(38px,6.4vw,84px);line-height:1;letter-spacing:-.01em;padding-right:34px;
  color:transparent;
  /* The outline was 1.3px at 34% alpha, which measures 1.83:1 against the band
     and was unreadable on a phone. 72% lands at 4.5:1 - clearly legible but
     still below the solid words at 7:1, so the hierarchy survives.
     The shorthand carries a flat 2.4px for browsers without max(); the line
     after it scales the stroke with the type where max() is supported. */
  -webkit-text-stroke:2.4px rgba(126,166,222,.72);
  -webkit-text-stroke-width:max(2.4px,.042em)}
.kin-row b.kin-hot{color:var(--volt);-webkit-text-stroke:0;text-shadow:0 0 40px rgba(46,155,255,.6)}
.kin-a{animation:kin 26s linear infinite}
.kin-b{animation:kin 34s linear infinite reverse}
@keyframes kin{to{transform:translateX(-50%)}}

/* --- stats count-up --- */
.stats{background:var(--hull);border-block:1px solid var(--line)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.stat{background:var(--abyss);padding:44px 30px;text-align:center;position:relative;overflow:hidden}
.stat::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;background:var(--volt);
  transform:translateX(-50%);transition:width .6s cubic-bezier(.2,.8,.3,1)}
.stat:hover::after{width:70%}
.stat b{display:block;font-family:'Saira Condensed',sans-serif;font-weight:800;
  font-size:clamp(44px,5.4vw,66px);line-height:1;
  background:linear-gradient(180deg,#fff,var(--volt));-webkit-background-clip:text;
  background-clip:text;color:transparent}
.stat small{display:block;margin-top:12px;color:var(--mute);font-family:'IBM Plex Mono',monospace;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase}

/* --- hotspots on the corrosion figure --- */
.hot{position:absolute;width:26px;height:26px;border-radius:50%;z-index:4;cursor:pointer;
  border:1px solid var(--volt);background:rgba(4,7,13,.55);padding:0;
  display:grid;place-items:center;transition:.25s}
.hot::before{content:"";position:absolute;inset:-1px;border-radius:50%;border:1px solid var(--volt);
  animation:ping 2.6s cubic-bezier(0,.5,.5,1) infinite}
.hot i{width:5px;height:5px;border-radius:50%;background:var(--volt-hot);display:block}
.hot:hover,.hot[aria-expanded="true"]{background:var(--volt);transform:scale(1.16)}
.hot:hover i,.hot[aria-expanded="true"] i{background:#03080F}
@keyframes ping{0%{transform:scale(1);opacity:.9}70%,100%{transform:scale(2.5);opacity:0}}
.hot-note{position:absolute;z-index:5;max-width:236px;padding:13px 15px;border-radius:var(--r);
  background:rgba(6,11,20,.96);border:1px solid var(--line-hot);color:var(--ice);font-size:14px;
  line-height:1.5;box-shadow:0 20px 44px -20px #000;opacity:0;visibility:hidden;
  transform:translateY(8px);transition:.25s;pointer-events:none}
.hot-note.show{opacity:1;visibility:visible;transform:none}
.hot-note b{display:block;font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.15em;
  text-transform:uppercase;color:var(--volt-hot);margin-bottom:6px}

/* --- feature card tilt --- */
.feat{position:relative;transform-style:preserve-3d;transition:transform .3s ease,background .3s}
.feat::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .3s;
  background:radial-gradient(220px circle at var(--mx,50%) var(--my,50%),rgba(46,155,255,.16),transparent 70%)}
.feat:hover::after{opacity:1}
.feat svg{transition:transform .35s cubic-bezier(.2,.8,.3,1)}
.feat:hover svg{transform:translateY(-3px) scale(1.12)}

/* --- section heading sweep --- */
.sec-head h2{position:relative;display:inline-block}
.sec-head.in h2::after{content:"";position:absolute;left:0;bottom:-14px;height:2px;width:0;
  background:linear-gradient(90deg,var(--volt),transparent);
  animation:sweep 1s .18s cubic-bezier(.2,.8,.3,1) forwards}
@keyframes sweep{to{width:88px}}

/* --- CTA aurora --- */
.cta{overflow:hidden;position:relative}
.cta::before{content:"";position:absolute;left:50%;bottom:-320px;width:900px;height:620px;
  transform:translateX(-50%);border-radius:50%;pointer-events:none;
  background:radial-gradient(closest-side,rgba(46,155,255,.34),transparent 72%);
  animation:aurora 7.5s ease-in-out infinite}
@keyframes aurora{0%,100%{opacity:.55;transform:translateX(-50%) scale(1)}
  50%{opacity:1;transform:translateX(-52%) scale(1.14)}}

/* --- staggered reveal children --- */
.stagger>*{opacity:0;transform:translateY(22px)}
.stagger.in>*{animation:fadeUp .66s cubic-bezier(.16,.9,.3,1) forwards}
.stagger.in>*:nth-child(1){animation-delay:.02s}
.stagger.in>*:nth-child(2){animation-delay:.08s}
.stagger.in>*:nth-child(3){animation-delay:.14s}
.stagger.in>*:nth-child(4){animation-delay:.2s}
.stagger.in>*:nth-child(5){animation-delay:.26s}
.stagger.in>*:nth-child(6){animation-delay:.32s}
.stagger.in>*:nth-child(7){animation-delay:.38s}
.stagger.in>*:nth-child(8){animation-delay:.44s}

@media(max-width:960px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .flow{opacity:.5}
}
@media(max-width:560px){
  .cue{display:none}
  .figure figcaption{font-size:11.5px;padding:11px 13px}
  .hot{width:22px;height:22px}
  .stat{padding:32px 18px}
}
@media(prefers-reduced-motion:reduce){
  .flow{display:none}
  .kin-a,.kin-b,.btn-primary::after,.cta::before,.hot::before{animation:none!important}
  h1 .w,.hero .eyebrow,.hero p.lede,.hero-cta,.spec-strip,.stagger>*{opacity:1!important;transform:none!important;animation:none!important}
}


/* Footer social links. Built as a list so adding Instagram or YouTube later
   is one more <li>, not a rethink. */
footer ul.social{list-style:none;padding:0;margin:0}
footer ul.social li{margin-bottom:10px}
footer ul.social a{display:inline-flex;align-items:center;gap:10px;
  color:var(--mute);text-decoration:none;transition:color .18s}
footer ul.social a:hover{color:var(--volt-hot)}
footer ul.social svg{flex:none;opacity:.9}


/* Which section am I on? The owner asked for this - without it the menu gives
   no feedback at all as you scroll. Applied by the scrollspy in index.html and
   set directly with class="on" on the standalone pages. */
.nav-links a{position:relative}
.nav-links a.on{color:var(--volt-hot)}
.nav-links a.on::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:linear-gradient(90deg,var(--volt),var(--volt-hot));border-radius:2px;
}
@media(max-width:880px){.nav-links a.on::after{display:none}}


/* The three problem cards became a checklist, so the numbers are now ticks. */
.pain h3 .tick{
  color:var(--good);
  -webkit-text-fill-color:var(--good);
  background:none;
  font-size:.85em;
  margin-right:10px;
}