/* ==========================================================================
   Energy Flow Solutions — division site
   Single-line-diagram aesthetic: technical, data-dense. No stock photography.
   Navy #12274B · Green #609336 · Blue #4293CE
   ========================================================================== */

:root{
  --navy:#12274B;
  --navy-2:#1B3766;
  --navy-deep:#0C1B36;
  --gold:#609336;
  --gold-hi:#6FA742;
  --steel:#6C86A5;
  --ink:#141F33;
  --body:#4F5F77;
  --paper:#F3F6FA;
  --line:#DCE2EB;
  --white:#fff;
  --blue:#4293CE;
  --wrap:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --ff-display:"Saira","Arial Narrow",Arial,sans-serif;
  --ff-body:"Barlow","Helvetica Neue",Arial,sans-serif;
  --ff-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--ff-body);font-size:17px;line-height:1.62;color:var(--ink);
  background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 28px}
h1,h2,h3,h4{font-family:var(--ff-display);font-weight:700;line-height:1.1;letter-spacing:-.01em;margin:0}
.section{padding:92px 0}

.eyebrow{font-family:var(--ff-mono);font-size:12px;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--gold);margin:0 0 14px;display:flex;align-items:center;gap:11px}
.eyebrow::after{content:"";flex:1;height:1px;max-width:56px;background:linear-gradient(90deg,var(--gold),transparent)}
.section-head{max-width:680px;margin:0 0 48px}
.section-head h2{font-size:clamp(28px,3.3vw,40px);color:var(--navy)}
.section-head p{color:var(--body);margin:14px 0 0;font-size:18px}

/* ---------- parent bar ---------- */
.parentbar{background:var(--navy-deep);color:#fff}
.parentbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;height:42px;font-size:13px}
.parentbar__txt{color:#A9BBC7}
.parentbar__txt b{color:#fff}
.parentbar a{display:inline-flex;align-items:center;gap:9px;color:#fff;font-family:var(--ff-mono);
  font-size:11.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase}
.parentbar a img{height:19px;width:auto}
.parentbar a:hover{color:var(--gold)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(150%) blur(9px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:82px;gap:20px}
.nav__brand img{height:58px;width:auto}
.nav__links{display:flex;align-items:center;gap:28px}
.nav__links a{font-family:var(--ff-display);font-size:13px;font-weight:600;letter-spacing:.12em;
  text-transform:uppercase;color:var(--navy);position:relative;padding:6px 0}
.nav__links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--gold);
  transition:width .3s var(--ease)}
.nav__links a:hover::after{width:100%}
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--ff-display);font-size:13.5px;
  font-weight:600;letter-spacing:.09em;text-transform:uppercase;padding:14px 22px;border-radius:2px;
  border:1px solid transparent;transition:.26s var(--ease);white-space:nowrap}
.btn--wa{background:#1FA855;color:#fff}
.btn--wa:hover{background:#178F47;transform:translateY(-2px)}
.btn--gold{background:var(--gold);color:var(--navy)}
.btn--gold:hover{background:var(--gold-hi);transform:translateY(-2px)}
.btn--ghost{border-color:var(--navy);color:var(--navy)}
.btn--ghost:hover{background:var(--navy);color:#fff}
.btn--ghost-l{border-color:rgba(255,255,255,.4);color:#fff}
.btn--ghost-l:hover{border-color:var(--gold);color:var(--gold)}
.btn i{transition:transform .26s var(--ease)}
.btn:hover i{transform:translateX(3px)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--paper);padding:80px 0 88px;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:54px 54px;opacity:.6;
  mask-image:radial-gradient(circle at 74% 42%,#000 22%,transparent 70%)}
.hero__grid{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
.hero__logo img{width:100%;max-width:400px;margin:0 auto;filter:drop-shadow(0 20px 40px rgba(16,40,56,.16))}
.hero__slogan{font-family:var(--ff-mono);font-size:13px;font-weight:600;letter-spacing:.12em;
  text-transform:uppercase;color:var(--gold);margin:0 0 16px}
.hero h1{font-size:clamp(31px,3.9vw,50px);color:var(--navy)}
.hero__sub{margin:22px 0 0;max-width:560px;font-size:18.5px;color:var(--body)}
.hero__actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:32px}
.hero__note{margin-top:20px;font-family:var(--ff-mono);font-size:12.5px;color:var(--steel)}

/* ---------- flowsheet (dark band) ---------- */
.flow{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.flow::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:40px 40px}
.flow .wrap{position:relative;z-index:2}
.flow .section-head h2{color:#fff}
.flow .section-head p{color:#A9BCC9}
.flow__svg{width:100%;height:auto;margin-top:8px}
.flow__hint{font-family:var(--ff-mono);font-size:12px;color:var(--steel);margin-top:16px;letter-spacing:.06em}
.fs-node{cursor:pointer}
.fs-node rect{fill:#1B3766;stroke:#2E4F86;stroke-width:1.5;transition:.25s var(--ease)}
.fs-node text{font-family:var(--ff-display);font-size:13px;font-weight:600;fill:#E8EFF6;letter-spacing:.02em}
.fs-node .fs-i{font-family:var(--ff-mono);font-size:10px;fill:var(--gold);letter-spacing:.1em}
.fs-node:hover rect{fill:var(--gold);stroke:var(--gold)}
.fs-node:hover text{fill:var(--navy)}
.fs-node:hover .fs-i{fill:var(--navy)}
.fs-arrow{stroke:#4A6E9E;stroke-width:1.6;fill:none;marker-end:url(#ah)}
.fs-side text{font-family:var(--ff-mono);font-size:10.5px;fill:var(--steel);letter-spacing:.08em}

/* ---------- equipment ---------- */
.equip{background:var(--white)}
.eq{border-top:1px solid var(--line);padding:44px 0}
.eq:first-of-type{border-top:0}
.eq__grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.eq__no{font-family:var(--ff-mono);font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--gold);
  margin-bottom:9px;display:block}
.eq h3{font-size:26px;color:var(--navy);margin:0 0 12px}
.eq p{margin:0 0 16px;color:var(--body)}
.eq ul{margin:0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:7px}
.eq ul li{font-family:var(--ff-mono);font-size:12px;color:var(--navy);background:var(--paper);
  border:1px solid var(--line);border-radius:2px;padding:5px 9px}

/* chip list (standalone, outside .eq) */
.chips{list-style:none;padding:0;margin:22px 0 0;display:flex;flex-wrap:wrap;gap:7px}
.chips li{font-family:var(--ff-mono);font-size:12px;color:var(--navy);background:#fff;
  border:1px solid var(--line);border-radius:2px;padding:5px 9px}

/* spec box — the competence proof */
.spec{background:var(--navy);border-left:3px solid var(--gold);padding:24px 26px;border-radius:2px}
.spec h4{font-family:var(--ff-mono);font-size:11.5px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--gold);margin:0 0 14px}
.spec dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:9px 16px}
.spec dt{font-family:var(--ff-mono);font-size:12px;color:#8FA6B4;white-space:nowrap}
.spec dd{margin:0;font-family:var(--ff-mono);font-size:12.5px;color:#E6EEF3}
.spec__foot{margin:16px 0 0;font-size:13.5px;color:#8FA6B4;font-family:var(--ff-body)}

/* ---------- spares ---------- */
.spares{background:var(--paper);border-top:1px solid var(--line)}
.spares__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.spares .spec{background:var(--white);border:1px solid var(--line);border-left:3px solid var(--gold)}
.spares .spec h4{color:var(--navy)}
.spares .spec dt{color:var(--steel)}
.spares .spec dd{color:var(--navy)}
.spares .spec__foot{color:var(--body)}

/* ---------- process (dark) ---------- */
.process{background:var(--navy-deep);color:#fff;position:relative;overflow:hidden}
.process::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:72px 100%}
.process .wrap{position:relative;z-index:2}
.process .section-head h2{color:#fff}
.process .section-head p{color:#A9BCC9}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
.step{border-top:1px solid rgba(96,147,54,.55);padding-top:18px}
.step b{display:block;font-family:var(--ff-mono);font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--gold);margin-bottom:9px}
.step h3{font-size:17px;color:#fff;margin:0 0 6px}
.step p{margin:0;color:#93A9B8;font-size:15px}

/* ---------- honesty block ---------- */
.stance{background:var(--white)}
.stance__grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.notlist{margin:0;padding:0;list-style:none}
.notlist li{display:flex;gap:14px;padding:15px 0;border-bottom:1px solid var(--line)}
.notlist li:last-child{border-bottom:0}
.notlist b{font-family:var(--ff-mono);font-size:12px;letter-spacing:.1em;color:var(--gold);
  min-width:58px;padding-top:3px}
.notlist span{color:var(--body)}
.notlist strong{color:var(--navy);font-weight:600}
.backed{background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--gold);padding:30px}
.backed h3{font-size:20px;color:var(--navy);margin:0 0 12px}
.backed p{margin:0 0 14px;color:var(--body);font-size:16px}
.backed dl{margin:16px 0 0;display:grid;grid-template-columns:auto 1fr;gap:9px 18px;
  padding-top:16px;border-top:1px solid var(--line)}
.backed dt{font-family:var(--ff-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--steel)}
.backed dd{margin:0;color:var(--navy);font-weight:600;font-size:15px}

/* ---------- enquiry ---------- */
.enq{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.enq::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:46px 46px;
  mask-image:radial-gradient(circle at 80% 50%,#000 20%,transparent 68%)}
.enq .wrap{position:relative;z-index:2}
.enq__grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.enq h2{font-size:clamp(28px,3.3vw,40px);color:#fff}
.enq p{color:#A9BCC9;margin:14px 0 0}
.enq__actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}
.sendlist{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-left:3px solid var(--gold);padding:26px 28px;border-radius:2px}
.sendlist h4{font-family:var(--ff-mono);font-size:11.5px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--gold);margin:0 0 15px}
.sendlist ol{margin:0;padding:0;list-style:none;counter-reset:s}
.sendlist li{counter-increment:s;display:flex;gap:13px;padding:9px 0;
  border-bottom:1px dashed rgba(255,255,255,.12);font-size:15px;color:#D3E0E8}
.sendlist li:last-child{border-bottom:0}
.sendlist li::before{content:counter(s,decimal-leading-zero);font-family:var(--ff-mono);font-size:11.5px;
  color:var(--gold);padding-top:3px}

/* ---------- contact ---------- */
.contact{background:var(--paper);border-top:1px solid var(--line)}
.contact__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.contact__item{background:#fff;border:1px solid var(--line);padding:28px}
.contact__item b{display:block;font-family:var(--ff-mono);font-size:11.5px;font-weight:600;
  letter-spacing:.13em;text-transform:uppercase;color:var(--steel);margin-bottom:9px}
.contact__item a,.contact__item span{color:var(--navy);font-size:17px;font-weight:500}
.contact__item a:hover{color:var(--gold)}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-deep);color:#8DA3B2;padding:56px 0 26px;font-size:14.5px}
.footer__top{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:32px;
  border-bottom:1px solid rgba(255,255,255,.1)}
.footer__brand>img{height:72px;width:auto;background:#fff;padding:9px 13px;border-radius:3px}
.footer__brand p{margin:14px 0 0;max-width:330px}
.site-footer h4{font-family:var(--ff-mono);font-size:11.5px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--gold);margin:0 0 14px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:9px}
.site-footer a:hover{color:#fff}
.endorse{display:flex;align-items:center;gap:12px;margin-top:22px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.1)}
.endorse img{height:32px;width:auto}
.endorse span{font-size:13.5px;color:#A0B4C2}
.endorse b{color:#fff;font-weight:600}
.footer__bottom{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;padding-top:22px;
  font-size:13px;color:#6C8091}
.footer__bottom em{color:var(--gold);font-style:italic}

/* ---------- responsive ---------- */
@media(max-width:1024px){
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .hero__grid,.eq__grid,.spares__grid,.stance__grid,.enq__grid,.contact__grid,.footer__top{grid-template-columns:1fr}
  .hero__logo{order:-1}
  .hero__logo img{max-width:290px}
  .nav__links{display:none}
  .section{padding:60px 0}
  .steps{grid-template-columns:1fr}
  .parentbar .wrap{height:auto;padding-top:9px;padding-bottom:9px;flex-wrap:wrap;gap:8px}
  .spec dl,.backed dl{grid-template-columns:1fr}
  .spec dt{color:var(--gold)}
}