@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600&display=swap');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#07101e;
  --bg2:#0b1829;
  --surf:#0f2035;
  --surf2:#142843;
  --border:rgba(255,255,255,0.08);
  --border2:rgba(255,255,255,0.14);
  --text:#dde6f0;
  --text2:#9db3c8;
  --text3:#6b88a4;
  --accent:#5fa8ff;
  --nav:88px;
  --r:10px;
}

body{background:var(--bg);color:var(--text);font-family:'Montserrat',sans-serif;line-height:1.6;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}

.nav{position:fixed;top:0;left:0;right:0;z-index:200;width:100%;height:82px;border:none;background:rgba(7,16,30,.16);backdrop-filter:none;-webkit-backdrop-filter:none;border-radius:0;padding:0 30px;display:flex;align-items:center;transition:background .3s ease,transform .3s ease}
.nav.hidden{transform:translateY(-100%)}
.nav.scrolled{background:rgba(7,16,30,.38)}
.nav-inner{width:100%;max-width:1320px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center}
.nav-logo img{height:115px;width:auto;display:block;margin-top:4px}
.nav-links{display:flex;list-style:none;gap:38px}
.nav-links a{font-size:13px;letter-spacing:.01em;text-transform:none;color:var(--text2)}
.nav-links a.active,.nav-links a:hover{color:var(--text)}
.nav-burger{display:none;background:none;border:0}
.nav-burger span{display:block;width:20px;height:1px;background:var(--text);margin:4px 0}
.nav-mob{display:none;position:fixed;top:88px;left:15px;right:15px;z-index:199;background:rgba(7,16,30,.95);border:1px solid var(--border);border-radius:18px;overflow:hidden}
.nav-mob.open{display:block}
.nav-mob a{display:block;padding:12px 16px;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--text2);border-bottom:1px solid var(--border)}
.nav-mob a:last-child{border-bottom:0}
.nav-mob a.active{color:var(--text)}

.hero{position:relative;min-height:460px;height:66vh;max-height:560px;padding-top:96px;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.78}
.hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(102deg,rgba(7,16,30,.62) 0%,rgba(7,16,30,.35) 46%,rgba(7,16,30,.05) 100%)}
.hero-content{position:relative;z-index:1;max-width:1320px;margin:0 auto;width:100%;padding:0 30px}
.eyebrow{font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:#93c5fd;margin-bottom:14px}
.hero h1{position:relative;margin-left:-14px;padding-left:14px;font-size:clamp(2.4rem,4.5vw,4.2rem);font-weight:300;line-height:1.05;letter-spacing:-.02em;max-width:980px;margin-top:0;margin-bottom:0}
.hero h1::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:2px;height:calc(100% - 0.18em);background:var(--accent)}
.hero-sub{font-size:clamp(0.95rem,1.15vw,1.2rem);font-weight:300;color:#d0dcea;max-width:880px;margin-top:16px;line-height:1.65}
.btn{margin-top:22px;display:inline-flex;align-items:center;justify-content:center;padding:14px 28px;background:var(--accent);color:#fff;border:none;border-radius:3px;font-size:15px;font-weight:500;transition:background .2s ease,transform .2s ease}
.btn:hover{background:#4a90e2}

.wrap{max-width:1320px;margin:0 auto;padding:0 30px}
.sect{padding:44px 0}
.divider{border:0;border-top:1px solid var(--border)}
.label{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:#93c5fd;margin-bottom:12px}
.body-text{font-size:14px;font-weight:300;color:var(--text2);line-height:1.72}
.body-text p+p{margin-top:12px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.split-img{border-radius:14px;overflow:hidden;border:1px solid var(--border);min-height:280px}
.split-img img{width:100%;height:100%;object-fit:cover}

.svc-grid,.ref-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:14px;overflow:hidden}
.svc-card,.ref-card{background:var(--surf);padding:22px;position:relative;min-height:112px}
.svc-card:hover,.ref-card:hover{background:var(--surf2)}
.card-t{font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:var(--text)}
.card-b{font-size:13px;color:var(--text2);margin-top:8px}

.svc-card::before{content:'';position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);transition:width .55s ease}
.svc-card:hover::before{width:100%}
.svc-card .card-t{transition:transform .35s ease,color .35s ease}
.svc-card:hover .card-t{transform:translateY(-2px);color:#bcdcff}

.ref-grid{grid-template-columns:repeat(4,1fr);margin-top:26px}
.ref-card{cursor:pointer}
.ref-progress{position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent)}
.ref-card.loading .ref-progress{transition:width .95s linear}
.ref-card.loading .ref-progress.go{width:100%}

.globe{background:var(--surf);border:1px solid var(--border);border-radius:14px;padding:20px;min-height:340px;display:flex;align-items:center;justify-content:center}

.energy-compact .hero{min-height:430px;height:58vh;max-height:500px}
.energy-compact .hero-content{padding-top:46px}
.energy-inline{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;max-width:960px}

.ops-diagram{background:var(--surf);border:1px solid var(--border);border-radius:14px;padding:20px}

footer{border-top:1px solid var(--border)}
.foot{max-width:1320px;margin:0 auto;padding:24px 30px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.foot-copy{font-size:10px;color:var(--text3);letter-spacing:.08em}
.foot-links{display:flex;list-style:none;gap:14px;flex-wrap:wrap;justify-content:center}
.foot-links a{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--text3)}

@media(max-width:980px){
  .nav-links{display:none}
  .nav-burger{display:block}
  .split,.energy-inline{grid-template-columns:1fr}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .ref-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:680px){
  .hero{height:62vh;min-height:420px}
  .wrap,.hero-content,.foot{padding-left:18px;padding-right:18px}
  .foot{flex-direction:column-reverse;align-items:center;gap:20px}
  .svc-grid,.ref-grid{grid-template-columns:1fr}
}