:root{
  --navy:#0a2a5e; --navy-d:#071c40; --blue:#1553a8; --blue-m:#2f7fd0; --sky:#2fb6f0; --light:#e8f1fb; --lighter:#f4f8fd;
  --ink:#0d1b33; --muted:#55657f; --line:#d6e2f2; --white:#fff;
  --r:6px; --max:1200px; --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:'Manrope',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;color:var(--ink);background:var(--white);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,p{margin:0}
a{color:inherit}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:8px 14px;z-index:100;border-radius:4px}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--sky);outline-offset:3px}
.ic{width:20px;height:20px;flex:none}
.ci{width:34px;height:34px;color:var(--blue)}
section[id]{scroll-margin-top:72px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 24px;border-radius:var(--r);font:600 15px/1 'Manrope',sans-serif;letter-spacing:.01em;text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:background .25s,color .25s,border-color .25s,transform .25s var(--ease),box-shadow .25s}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--blue);transform:translateY(-2px);box-shadow:0 10px 24px -10px rgba(10,42,94,.55)}
.btn-ghost{border-color:var(--navy);color:var(--navy);background:transparent}
.btn-ghost:hover{background:var(--navy);color:#fff;transform:translateY(-2px)}
.btn-ghost-d{border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost-d:hover{background:#fff;color:var(--navy);transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn:active{transform:translateY(0)}

/* Header */
.site-header{position:fixed;inset:0 0 auto 0;z-index:50;background:rgba(255,255,255,.97);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand img{height:52px;width:auto;mix-blend-mode:multiply}
.header-r{display:flex;align-items:center;gap:22px}
.status{display:flex;align-items:center;gap:8px;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--sky);box-shadow:0 0 0 0 rgba(47,182,240,.6);animation:ping 2.2s infinite}
@keyframes ping{70%{box-shadow:0 0 0 9px rgba(47,182,240,0)}100%{box-shadow:0 0 0 0 rgba(47,182,240,0)}}

/* Hero */
.hero{position:relative;min-height:100vh;min-height:100svh;padding:68px 0 0;display:flex;align-items:center;background:linear-gradient(120deg,#fff 0%,var(--lighter) 55%,var(--light) 100%);overflow:hidden;isolation:isolate}
.hero-grid{position:absolute;inset:0;z-index:-2;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;opacity:.5;-webkit-mask-image:linear-gradient(90deg,#000 0,transparent 65%);mask-image:linear-gradient(90deg,#000 0,transparent 65%);animation:grid 40s linear infinite}
@keyframes grid{to{background-position:56px 56px}}
.hero-visual{position:absolute;top:0;right:0;bottom:0;width:56%;z-index:-1;clip-path:polygon(24% 0,100% 0,100% 100%,0 100%);}
.hero-img{position:absolute;inset:0;background:url(../assets/img/hero-building.jpg) 60% 40%/cover;}
.hero-img::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(10,42,94,.05),rgba(10,42,94,.55))}
.airflow{position:absolute;inset:0;width:100%;height:100%}
.flow{stroke-width:2;opacity:.55;stroke-dasharray:60 340;animation:flow 7s linear infinite}
.f2{opacity:.35;animation-duration:9s;animation-delay:-3s;stroke-width:1.5}
.f3{opacity:.4;animation-duration:8s;animation-delay:-5s}
.f4{opacity:.25;animation-duration:11s;animation-delay:-2s;stroke-width:1.5}
@keyframes flow{to{stroke-dashoffset:-800}}
.hero-in{position:relative;padding-top:48px;padding-bottom:64px}
.hero-copy{max-width:640px}
.eyebrow{font-size:12.5px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--blue);display:flex;align-items:center;gap:14px}
.eyebrow::before{content:"";width:36px;height:2px;background:var(--sky)}
.hero h1{font-size:clamp(40px,6.4vw,84px);line-height:1.04;font-weight:300;letter-spacing:-.025em;color:var(--ink);margin-top:24px}
.hero h1 b{font-weight:800;color:var(--navy)}
.lead{margin-top:26px;font-size:clamp(16px,1.5vw,19px);color:var(--muted);max-width:520px}
.soon{display:inline-flex;align-items:center;gap:12px;margin-top:28px;padding:10px 16px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--sky);font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--navy)}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-tag{position:absolute;right:24px;bottom:48px;display:flex;flex-direction:column;gap:2px;font-size:clamp(18px,2vw,28px);font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#fff;text-align:right;line-height:1.2}

/* Section common */
section{position:relative}
.sec-head{margin-bottom:44px}
.kicker{font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--blue);margin-bottom:14px;display:flex;align-items:center;gap:12px}
.kicker::before{content:"";width:28px;height:2px;background:var(--sky)}
.kicker.light{color:var(--sky)}
h2{font-size:clamp(28px,3.6vw,44px);line-height:1.15;font-weight:300;letter-spacing:-.02em;color:var(--navy)}
.engvis,.solutions,.industries,.clients,.why,.contact{padding:96px 0}

/* Engineering visual */
.eng-stage{position:relative;border-radius:var(--r);overflow:hidden;background:var(--navy-d)}
.eng-stage img{width:100%;aspect-ratio:2.9/1;object-fit:cover}
.eng-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,28,64,.78),rgba(10,42,94,.2) 55%,rgba(7,28,64,.5))}
.eng-lines{position:absolute;inset:0;width:100%;height:100%}
.draw{stroke-dasharray:400;stroke-dashoffset:400;opacity:.8}
.eng-stage.in .draw{animation:draw 1.6s var(--ease) forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.eng-labels li{position:absolute;left:var(--x);top:var(--y);transform:translateX(-50%);color:#fff;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;white-space:nowrap;padding:6px 10px;border:1px solid rgba(255,255,255,.4);background:rgba(7,28,64,.55);backdrop-filter:blur(4px)}
.eng-labels small{color:var(--sky);margin-right:8px;font-size:11px}
.phases{display:flex;flex-wrap:wrap;gap:0;margin-top:28px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.phases li{flex:1 1 140px;text-align:center;padding:16px 10px;font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--navy);background:var(--lighter);position:relative}
.phases li+li{border-left:1px solid var(--line)}
.phases li:nth-child(odd){background:#fff}

/* Cards */
.solutions{background:var(--lighter)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:32px 28px;position:relative;transition:transform .35s var(--ease),border-color .3s,box-shadow .35s}
.card:hover{transform:translateY(-4px);border-color:var(--blue-m);box-shadow:0 18px 36px -22px rgba(10,42,94,.35)}
.card::before{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--sky);transition:width .5s var(--ease)}
.card:hover::before{width:100%}
.num{position:absolute;top:26px;right:26px;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--sky)}
.card h3{margin-top:22px;font-size:20px;line-height:1.25;font-weight:700;color:var(--navy)}
.card h3 small{font-size:inherit;font-weight:300}
.card p{margin-top:12px;font-size:15px;color:var(--muted)}
.card-note{background:var(--navy);border-color:var(--navy);display:flex;align-items:center}
.card-note:hover{transform:none;box-shadow:none;border-color:var(--navy)}
.card-note p{margin:0;color:#fff;font-size:20px;font-weight:300;line-height:1.4}
.range{margin-top:64px}
.range-h{font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--blue);margin-bottom:20px}
.range-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.range-grid li{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.range-grid img{aspect-ratio:16/10;width:100%;object-fit:cover;transition:transform .6s var(--ease)}
.range-grid li:hover img{transform:scale(1.05)}
.range-grid li{overflow:hidden}
.range-grid span{display:block;padding:10px 12px;font-size:12.5px;font-weight:600;color:var(--navy);line-height:1.35;background:#fff;position:relative}

/* Why */
.why{background:linear-gradient(135deg,var(--navy-d),var(--navy) 60%,#0f3a80);color:#fff;overflow:hidden}
.why::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border:1px solid rgba(255,255,255,.1);border-radius:50%;box-shadow:0 0 0 60px rgba(255,255,255,.03),0 0 0 120px rgba(255,255,255,.02)}
.why h2{color:#fff}
.why-in{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:center;position:relative;z-index:1}
.why .sec-head{margin:0}
.why-list{display:grid;gap:0}
.why-list li{display:flex;align-items:center;gap:16px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.14);font-size:17px;font-weight:500}
.why-list li:first-child{border-top:1px solid rgba(255,255,255,.14)}
.why-list .ic{width:30px;height:30px;padding:6px;border-radius:50%;background:rgba(47,182,240,.18);color:var(--sky)}

/* Industries */
.ind-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}
.ind-grid li{background:#fff;padding:32px 24px;display:flex;flex-direction:column;gap:18px;min-height:150px;font-weight:700;font-size:16px;line-height:1.3;color:var(--navy);transition:background .3s}
.ind-grid li:hover{background:var(--light)}
.ind-grid .ci{width:36px;height:36px}

/* Clients */
.clients{background:var(--lighter)}
.logo-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:12px}
.logo-grid li{background:#fff;border:1px solid var(--line);border-radius:var(--r);aspect-ratio:3/2;display:flex;align-items:center;justify-content:center;padding:10px 12px;overflow:hidden}
.logo-grid img{max-height:100%;width:auto;object-fit:contain;filter:grayscale(1);opacity:.7;transition:filter .3s,opacity .3s}
.logo-grid li:hover img{filter:none;opacity:1}

/* Coming soon */
.soon-sec{padding:120px 0;background:var(--navy-d);color:#fff;text-align:center;overflow:hidden;isolation:isolate}
.soon-grid{position:absolute;inset:0;z-index:-1;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:radial-gradient(ellipse at center,#000 20%,transparent 75%);mask-image:radial-gradient(ellipse at center,#000 20%,transparent 75%)}
.soon-in{max-width:760px}
.soon-in .kicker{justify-content:center}
.soon-in h2{color:#fff;font-weight:300}
.soon-in p:not(.kicker){margin-top:22px;color:#b9c9e3;font-size:17px}
.pulse{position:relative;width:76px;height:76px;margin:0 auto 34px;display:grid;place-items:center;color:var(--sky)}
.pulse svg{width:34px;height:34px;fill:none}
.pulse i{position:absolute;inset:0;border:1px solid var(--sky);border-radius:50%;opacity:0;animation:pulse 3.6s infinite}
.pulse i:nth-child(2){animation-delay:1.2s}.pulse i:nth-child(3){animation-delay:2.4s}
@keyframes pulse{0%{transform:scale(.45);opacity:.8}100%{transform:scale(1.7);opacity:0}}
.bar{width:min(320px,80%);height:3px;margin:38px auto 0;background:rgba(255,255,255,.15);overflow:hidden;border-radius:2px;position:relative}
.bar span{position:absolute;top:0;left:0;height:100%;width:35%;background:linear-gradient(90deg,transparent,var(--sky),transparent);animation:scan 2.6s ease-in-out infinite}
@keyframes scan{0%{transform:translateX(-100%)}100%{transform:translateX(300%)}}

/* Contact */
.ct-card{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;background:var(--navy);color:#fff;border-radius:var(--r);padding:44px;position:relative;overflow:hidden}
.ct-card::after{content:"";position:absolute;right:-60px;bottom:-60px;width:220px;height:220px;border-radius:50%;border:1px solid rgba(255,255,255,.1)}
.ct-list{display:grid;gap:22px}
.ct-list li{display:flex;gap:16px;align-items:flex-start}
.ct-list .ic{width:42px;height:42px;padding:10px;border-radius:50%;background:rgba(255,255,255,.1);color:var(--sky)}
.ct-list strong{display:block;font-size:18px;font-weight:700}
.ct-list span{display:block;font-size:14px;color:#b9c9e3}
.ct-list a{font-size:18px;font-weight:600;text-decoration:none;overflow-wrap:anywhere;line-height:42px}
.ct-list a:hover{color:var(--sky)}
.ct-btns{display:grid;gap:12px;position:relative;z-index:1}
.ct-btns .btn-primary{background:var(--sky);color:var(--navy-d)}
.ct-btns .btn-primary:hover{background:#fff}

/* Footer */
.site-footer{background:var(--navy-d);color:#b9c9e3;padding:40px 0;font-size:14px}
.site-footer strong{color:#fff;font-size:17px}
.foot-in{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.foot-r{text-align:right}

/* Reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}.d4{transition-delay:.4s}
.no-js .reveal{opacity:1;transform:none}

/* Responsive */
@media (max-width:1024px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .range-grid{grid-template-columns:repeat(4,1fr)}
  .logo-grid{grid-template-columns:repeat(5,1fr)}
  .ind-grid{grid-template-columns:repeat(2,1fr)}
  .why-in{grid-template-columns:1fr;gap:36px}
  .hero-visual{width:64%}
}
@media (max-width:760px){
  .wrap{padding:0 18px}
  .header-in{height:60px}.brand img{height:42px}
  .status span{display:none}.status{gap:0}
  .site-header+main .hero{padding-top:60px}
  section[id]{scroll-margin-top:60px}
  .hero{min-height:auto;align-items:flex-start}
  .hero-visual{width:100%;height:220px;bottom:auto;top:60px;clip-path:none;order:-1}
  .hero-img::after{background:linear-gradient(180deg,rgba(10,42,94,.05),rgba(244,248,253,1) 98%)}
  .hero-in{padding-top:236px;padding-bottom:48px}
  .hero-tag{display:none}
  .hero h1{margin-top:18px}
  .cta .btn{flex:1 1 100%}
  .engvis,.solutions,.industries,.clients,.why,.contact{padding:64px 0}
  .soon-sec{padding:80px 0}
  .sec-head{margin-bottom:30px}
  .eng-stage img{aspect-ratio:4/5;object-position:60% 50%}
  .eng-lines{display:none}
  .eng-labels{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;gap:10px;padding:18px}
  .eng-labels li{position:static;transform:none;align-self:flex-start;font-size:11px}
  .phases li{flex:1 1 50%;border-top:1px solid var(--line)}
  .phases li:nth-child(even){border-left:1px solid var(--line)}
  .phases li:nth-child(odd){border-left:0}
  .cards{grid-template-columns:1fr}
  .range-grid{grid-template-columns:repeat(2,1fr)}
  .ind-grid{grid-template-columns:repeat(2,1fr)}
  .ind-grid li{padding:22px 16px;min-height:130px;font-size:14.5px}
  .logo-grid{grid-template-columns:repeat(3,1fr);gap:8px}
  .why-list li{font-size:15.5px;padding:15px 0}
  .ct-card{grid-template-columns:1fr;padding:28px 22px;gap:28px}
  .ct-list a,.ct-list strong{font-size:15px}.ct-list a{line-height:1.3;display:inline-block;padding-top:10px}
  .foot-r{text-align:left}
}
@media (max-width:380px){.ind-grid{grid-template-columns:1fr}.logo-grid{grid-template-columns:repeat(2,1fr)}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .draw{stroke-dashoffset:0}
}