:root{
  --navy-950:#0d1830;
  --navy-800:#152847;
  --navy-700:#1d3660;
  --blue-500:#3f6da3;
  --brass-500:#b8893a;
  --brass-300:#d9b676;
  --stone-100:#f1ede3;
  --stone-200:#e7e1d2;
  --paper:#f8f6f0;
  --ink-900:#151913;
  --ink-600:#4c534a;
  --line:rgba(13,24,48,0.14);
  --radius:2px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter',sans-serif;
  color:var(--ink-900);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px;}
h1,h2,h3,h4{font-family:'Oswald',sans-serif;text-transform:uppercase;letter-spacing:0.02em;color:var(--navy-950);font-weight:600;}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:12.5px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--brass-500);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brass-500);}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;letter-spacing:0.06em;text-transform:uppercase;
  padding:14px 26px;border:1px solid var(--navy-950);
  border-radius:var(--radius);
  transition:all .25s ease;
  cursor:pointer;background:none;
}
.btn-solid{background:var(--navy-950);color:var(--paper);}
.btn-solid:hover{background:var(--brass-500);border-color:var(--brass-500);color:var(--navy-950);}
.btn-ghost{color:var(--stone-100);border-color:rgba(241,237,227,0.55);}
.btn-ghost:hover{border-color:var(--brass-300);color:var(--brass-300);}
.btn-dark-ghost{color:var(--navy-950);}
.btn-dark-ghost:hover{background:var(--navy-950);color:var(--paper);}

/* corner brackets, blueprint motif */
.corners{position:relative;}
.corners::before,.corners::after{
  content:"";position:absolute;width:20px;height:20px;
  border:1.5px solid var(--brass-500);opacity:0.8;
}
.corners::before{top:-1px;left:-1px;border-right:none;border-bottom:none;}
.corners::after{bottom:-1px;right:-1px;border-left:none;border-top:none;}

/* ---------- NAV ---------- */
header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(13,24,48,0.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid rgba(184,137,58,0.25);
  transition:background .3s ease;
}
nav{
  display:flex;align-items:center;justify-content:space-between;
  max-width:1180px;margin:0 auto;padding:14px 32px;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand img{height:38px;width:38px;object-fit:contain;}
.brand-text{font-family:'Oswald',sans-serif;color:var(--stone-100);line-height:1.05;}
.brand-text .b1{font-size:15px;font-weight:600;letter-spacing:0.03em;text-transform:uppercase;}
.brand-text .b2{font-size:10px;color:var(--brass-300);letter-spacing:0.12em;text-transform:uppercase;font-family:'IBM Plex Mono',monospace;}
.navlinks{display:flex;align-items:center;gap:30px;}
.navlinks a{
  font-family:'IBM Plex Mono',monospace;font-size:12.5px;letter-spacing:0.06em;
  text-transform:uppercase;color:var(--stone-100);opacity:0.82;
  padding:4px 0;border-bottom:1px solid transparent;
}
.navlinks a:hover{opacity:1;border-color:var(--brass-500);}
.navcta{display:flex;align-items:center;gap:18px;}
.navphone{font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--brass-300);display:none;}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;}
.hamburger span{width:24px;height:2px;background:var(--stone-100);}

/* ---------- HERO ---------- */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:flex-end;
  background:linear-gradient(180deg, rgba(13,24,48,0.55) 0%, rgba(13,24,48,0.72) 55%, rgba(13,24,48,0.94) 100%), url('assets/hero-01-site-walkthrough-engineers-reviewing-drawings.jpg') center/cover no-repeat;
}
.hero-inner{width:100%;padding:180px 0 90px;}
.hero-tag{
  font-family:'IBM Plex Mono',monospace;color:var(--brass-300);font-size:13px;
  letter-spacing:0.16em;text-transform:uppercase;margin-bottom:22px;display:flex;align-items:center;gap:12px;
}
.hero-tag::before{content:"";width:30px;height:1px;background:var(--brass-300);}
.hero h1{
  color:var(--paper);font-size:clamp(38px,6.2vw,78px);line-height:0.98;font-weight:700;
  max-width:920px;letter-spacing:0.005em;
}
.hero h1 em{font-style:normal;color:var(--brass-300);}
.hero p{
  color:var(--stone-200);max-width:520px;margin:26px 0 38px;font-size:17px;font-family:'Inter',sans-serif;
  font-weight:400;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.hero-meta{
  margin-top:64px;display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(241,237,227,0.2);padding-top:26px;max-width:920px;
}
.hero-meta div{padding-right:20px;}
.hero-meta .num{font-family:'IBM Plex Mono',monospace;color:var(--brass-300);font-size:26px;font-weight:600;}
.hero-meta .lbl{font-family:'IBM Plex Mono',monospace;color:var(--stone-200);font-size:11px;letter-spacing:0.06em;text-transform:uppercase;opacity:0.75;margin-top:6px;}

/* ---------- CERT STRIP ---------- */
.certstrip{background:var(--navy-950);border-top:1px solid rgba(184,137,58,0.25);}
.certstrip .wrap{
  display:flex;flex-wrap:wrap;gap:14px 46px;align-items:center;justify-content:space-between;
  padding:22px 32px;
}
.certitem{
  display:flex;align-items:center;gap:10px;font-family:'IBM Plex Mono',monospace;
  color:var(--stone-200);font-size:12px;letter-spacing:0.05em;text-transform:uppercase;opacity:0.85;
}
.certitem .dot{width:6px;height:6px;background:var(--brass-500);border-radius:50%;flex:none;}

/* ---------- SECTION GENERIC ---------- */
section{padding:120px 0;}
.section-head{max-width:640px;margin-bottom:56px;}
.section-head h2{font-size:clamp(28px,3.4vw,44px);line-height:1.06;}
.section-head p{color:var(--ink-600);margin-top:18px;font-size:16px;max-width:560px;}
.divider{height:1px;background:var(--line);margin:0 0 0;}

/* ---------- WHO WE ARE ---------- */
.about{background:var(--stone-100);}
.about-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:70px;align-items:center;}
.about-img-wrap{position:relative;padding:18px;}
.about-img-wrap img{border-radius:var(--radius);}
.about-copy p{color:var(--ink-600);margin-bottom:18px;font-size:16px;max-width:520px;}
.mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;margin-top:38px;border-top:1px solid var(--line);padding-top:32px;}
.mv-grid h4{font-size:14px;letter-spacing:0.08em;color:var(--brass-500);margin-bottom:10px;}
.mv-grid p{font-size:14.5px;color:var(--ink-600);}

/* ---------- SERVICES : BOQ table style (signature element) ---------- */
.services{background:var(--paper);}
.boq{
  border:1px solid var(--navy-950);
}
.boq-head{
  display:grid;grid-template-columns:70px 1fr 210px;
  background:var(--navy-950);color:var(--stone-100);
  font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:0.08em;text-transform:uppercase;
}
.boq-head div{padding:14px 18px;}
.boq-row{
  border-top:1px solid var(--line);
  display:grid;grid-template-columns:70px 1fr 210px;
  cursor:pointer;
  transition:background .2s ease;
}
.boq-row:hover{background:var(--stone-100);}
.boq-row.open{background:var(--stone-100);}
.boq-item{
  font-family:'IBM Plex Mono',monospace;color:var(--brass-500);font-size:14px;
  padding:24px 18px;border-right:1px solid var(--line);display:flex;align-items:flex-start;
}
.boq-desc{padding:24px 18px;border-right:1px solid var(--line);}
.boq-desc h4{font-size:18px;letter-spacing:0.01em;margin-bottom:6px;}
.boq-desc .sub{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--ink-600);text-transform:uppercase;letter-spacing:0.04em;}
.boq-scope{
  padding:24px 18px;font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--ink-600);
  line-height:1.7;
}
.boq-detail{
  grid-column:1 / -1;max-height:0;overflow:hidden;transition:max-height .35s ease;
  border-top:1px solid transparent;
}
.boq-row.open .boq-detail{max-height:400px;border-top:1px solid var(--line);}
.boq-detail-inner{padding:22px 18px 30px 106px;display:grid;grid-template-columns:1fr 1fr;gap:8px 40px;}
.boq-detail-inner div{
  font-size:14px;color:var(--ink-600);padding-left:16px;position:relative;
}
.boq-detail-inner div::before{content:"—";position:absolute;left:0;color:var(--brass-500);}
.boq-toggle{margin-left:auto;font-family:'IBM Plex Mono',monospace;color:var(--navy-950);font-size:18px;padding-top:24px;padding-right:8px;}

/* ---------- APPROACH ---------- */
.approach{background:var(--navy-950);color:var(--stone-100);position:relative;overflow:hidden;}
.approach::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(241,237,227,0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(241,237,227,0.045) 1px, transparent 1px);
  background-size:44px 44px; pointer-events:none;
}
.approach .section-head h2{color:var(--stone-100);}
.approach .section-head p{color:var(--stone-200);opacity:0.8;}
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:20px;}
.timeline::before{
  content:"";position:absolute;top:19px;left:0;right:0;height:1px;
  background:repeating-linear-gradient(90deg, var(--brass-500) 0 8px, transparent 8px 16px);
}
.tstep{position:relative;padding-right:20px;}
.tstep .tdot{
  width:38px;height:38px;border-radius:50%;background:var(--navy-950);border:1.5px solid var(--brass-500);
  display:flex;align-items:center;justify-content:center;font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--brass-300);
  margin-bottom:22px;position:relative;z-index:2;
}
.tstep h4{color:var(--stone-100);font-size:15px;letter-spacing:0.04em;margin-bottom:10px;}
.tstep p{font-size:13.5px;color:var(--stone-200);opacity:0.75;line-height:1.55;}
.goals{
  margin-top:80px;border-top:1px solid rgba(241,237,227,0.15);padding-top:44px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:40px;
}
.goals .g-num{font-family:'IBM Plex Mono',monospace;color:var(--brass-500);font-size:12px;margin-bottom:12px;}
.goals p{font-size:15.5px;color:var(--stone-100);line-height:1.6;max-width:300px;}

/* ---------- PROJECTS ---------- */
.projects{background:var(--stone-100);}
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--navy-950);border:1px solid var(--navy-950);}
.pcard{position:relative;overflow:hidden;background:var(--navy-950);aspect-ratio:4/3.1;}
.pcard img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease, opacity .3s ease;opacity:0.92;}
.pcard:hover img{transform:scale(1.06);opacity:1;}
.pcard-overlay{
  position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;
  padding:22px;background:linear-gradient(180deg, transparent 40%, rgba(13,24,48,0.92) 100%);
}
.pcard-tag{
  font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:var(--brass-300);letter-spacing:0.08em;
  text-transform:uppercase;margin-bottom:6px;
}
.pcard-title{color:var(--stone-100);font-family:'Oswald',sans-serif;font-size:17px;text-transform:uppercase;letter-spacing:0.02em;}
.pcard-role{color:var(--stone-200);font-size:12.5px;opacity:0.75;margin-top:4px;}

/* ---------- INDUSTRIES ---------- */
.industries{background:var(--paper);padding-top:90px;padding-bottom:90px;}
.ind-list{display:flex;flex-wrap:wrap;gap:14px;margin-top:10px;}
.ind-chip{
  font-family:'IBM Plex Mono',monospace;font-size:13px;letter-spacing:0.03em;
  padding:11px 20px;border:1px solid var(--line);border-radius:20px;color:var(--ink-900);
  transition:all .2s ease;
}
.ind-chip:hover{border-color:var(--brass-500);color:var(--brass-500);}

/* ---------- CONTACT FORM ---------- */
.contact-form{margin-bottom:44px;}
.cf-row{margin-bottom:18px;}
.cf-row label{
  display:block;font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:0.08em;
  text-transform:uppercase;color:var(--brass-300);margin-bottom:8px;
}
.cf-row input,.cf-row textarea{
  width:100%;background:rgba(241,237,227,0.05);border:1px solid rgba(241,237,227,0.22);
  border-radius:var(--radius);padding:13px 14px;color:var(--stone-100);font-family:'Inter',sans-serif;
  font-size:15px;transition:border-color .2s ease;
}
.cf-row input:focus,.cf-row textarea:focus{outline:none;border-color:var(--brass-500);}
.cf-row textarea{resize:vertical;}
.cf-honeypot{position:absolute;left:-9999px;top:-9999px;width:1px;height:1px;overflow:hidden;}
.contact-form .btn{margin-top:6px;}
.form-notice{
  font-family:'IBM Plex Mono',monospace;font-size:13px;padding:14px 18px;border-radius:var(--radius);
  margin-bottom:26px;border:1px solid;
}
.form-notice-ok{background:rgba(184,137,58,0.12);border-color:var(--brass-500);color:var(--brass-300);}
.form-notice-err{background:rgba(200,80,80,0.1);border-color:#c85050;color:#e29a9a;}

/* ---------- CONTACT ---------- */
.contact{background:var(--navy-950);color:var(--stone-100);}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:stretch;}
.contact .section-head h2{color:var(--stone-100);}
.contact .section-head p{color:var(--stone-200);opacity:0.82;}
.contact-info{display:flex;flex-direction:column;gap:26px;margin-top:10px;}
.cinfo-row{border-top:1px solid rgba(241,237,227,0.14);padding-top:20px;}
.cinfo-row .lbl{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--brass-300);letter-spacing:0.1em;text-transform:uppercase;margin-bottom:8px;}
.cinfo-row .val{font-size:17px;color:var(--stone-100);}
.cinfo-row a.val:hover{color:var(--brass-300);}
.contact-img{position:relative;}
.contact-img img{width:100%;height:100%;object-fit:cover;min-height:340px;border-radius:var(--radius);}

/* ---------- FOOTER ---------- */
footer{background:var(--navy-950);border-top:1px solid rgba(241,237,227,0.14);padding:38px 0;}
.foot-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;}
.foot-brand{display:flex;align-items:center;gap:12px;color:var(--stone-200);font-family:'IBM Plex Mono',monospace;font-size:12px;}
.foot-brand img{height:26px;width:26px;object-fit:contain;}
.foot-links{display:flex;gap:24px;font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--stone-200);opacity:0.7;}

/* ---------- RESPONSIVE ---------- */
@media(min-width:900px){.navphone{display:block;}}
@media(max-width:900px){
  .navlinks{display:none;}
  .hamburger{display:flex;}
  .about-grid,.contact-grid{grid-template-columns:1fr;gap:40px;}
  .hero-meta{grid-template-columns:repeat(2,1fr);row-gap:24px;}
  .timeline{grid-template-columns:repeat(2,1fr);row-gap:36px;}
  .timeline::before{display:none;}
  .goals{grid-template-columns:1fr;}
  .pgrid{grid-template-columns:repeat(2,1fr);}
  .boq-head{display:none;}
  .boq-row{grid-template-columns:50px 1fr;}
  .boq-scope{display:none;}
  .boq-detail-inner{padding-left:50px;grid-template-columns:1fr;}
}
@media(max-width:600px){
  section{padding:80px 0;}
  .pgrid{grid-template-columns:1fr;}
  .mv-grid{grid-template-columns:1fr;}
  .wrap{padding:0 20px;}
}

/* mobile nav drawer */
.mobile-drawer{
  position:fixed;top:0;right:-100%;width:78%;max-width:320px;height:100vh;
  background:var(--navy-950);z-index:200;transition:right .35s ease;
  padding:100px 32px 32px;display:flex;flex-direction:column;gap:26px;
  border-left:1px solid rgba(184,137,58,0.25);
}
.mobile-drawer.open{right:0;}
.mobile-drawer a{
  font-family:'IBM Plex Mono',monospace;color:var(--stone-100);text-transform:uppercase;
  letter-spacing:0.06em;font-size:14px;
}
.drawer-close{position:absolute;top:28px;right:28px;background:none;border:none;color:var(--stone-100);font-size:22px;cursor:pointer;}