/* ============================================================
   PipeVantage — Engineering Services
   Corporate design system (v2)
   ============================================================ */
:root{
  --navy:      #0B2545;
  --navy-2:    #123262;
  --blue:      #1565C0;
  --blue-2:    #0D47A1;
  --sky:       #4FA9E8;
  --coral:     #E85D3D;
  --paper:     #FFFFFF;
  --paper-2:   #F4F6F9;
  --paper-3:   #EDF1F6;
  --ink:       #1A2B3C;
  --slate:     #5B6B7D;
  --line:      #E1E7EE;

  --display: "Poppins", "Arial", sans-serif;
  --body:    "Inter", -apple-system, sans-serif;

  --max: 1240px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  line-height:1.65;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{
  font-family:var(--display);
  margin:0 0 .45em;
  letter-spacing:-0.015em;
  font-weight:600;
  color:var(--navy);
}
p{margin:0 0 1em;color:var(--slate);}
.wrap{max-width:var(--max);margin:0 auto;padding:0 32px;}
section{padding:96px 0;}
@media(max-width:720px){section{padding:60px 0;} .wrap{padding:0 20px;}}

a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--blue);outline-offset:2px;
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;scroll-behavior:auto !important;}
}

.eyebrow{
  font-family:var(--body);font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--blue);
  text-transform:uppercase;margin-bottom:14px;display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--coral);}
.eyebrow.on-dark{color:var(--sky);}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease, transform .55s ease;}
.reveal.in{opacity:1;transform:none;}

/* ============================================================
   Header
   ============================================================ */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(11,37,69,.98);
}
.nav{
  max-width:var(--max);margin:0 auto;padding:0 32px;
  display:flex;align-items:center;justify-content:space-between;
  height:76px;
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-family:var(--display);font-weight:600;font-size:19px;}
.brand .mark{width:30px;height:30px;flex:none;}
.navlinks{display:flex;gap:2px;align-items:center;}
.navlinks a{
  color:#C7D2E0;font-size:14.5px;padding:10px 16px;
  transition:color .15s;
  font-family:var(--body);font-weight:500;
}
.navlinks a:hover,.navlinks a.active{color:#fff;}
.navlinks a.cta{
  color:#fff;background:var(--coral);margin-left:10px;font-weight:600;border-radius:3px;padding:11px 20px;
}
.navlinks a.cta:hover{background:#D24F31;}
.navtoggle{display:none;background:none;border:none;color:#fff;font-size:26px;cursor:pointer;}
@media(max-width:900px){
  .navlinks{
    position:fixed;inset:76px 0 0 0;background:var(--navy);
    flex-direction:column;align-items:stretch;padding:18px;
    transform:translateY(-110%);transition:transform .25s ease;
  }
  .navlinks.open{transform:translateY(0);}
  .navlinks a{padding:16px 10px;border-bottom:1px solid rgba(255,255,255,.1);}
  .navlinks a.cta{margin:10px 0 0;text-align:center;}
  .navtoggle{display:block;}
}

/* ============================================================
   Hero — full-bleed banner style (CSG/Neilsoft pattern)
   ============================================================ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(115deg, rgba(11,37,69,.96) 0%, rgba(11,37,69,.88) 40%, rgba(21,101,192,.55) 100%),
    linear-gradient(180deg,#0B2545 0%,#123262 100%);
  padding:120px 0 0;
}
/* ============================================================
   Background photo slideshow (hero / pagehero)
   ============================================================ */
.bg-slideshow{position:absolute;inset:0;z-index:0;overflow:hidden;}
.bg-slideshow .slide{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;animation:slidefade 22s infinite;
}
.bg-slideshow .slide:nth-child(1){animation-delay:0s;}
.bg-slideshow .slide:nth-child(2){animation-delay:5.5s;}
.bg-slideshow .slide:nth-child(3){animation-delay:11s;}
.bg-slideshow .slide:nth-child(4){animation-delay:16.5s;}
@keyframes slidefade{
  0%{opacity:0;}
  4%{opacity:1;}
  22%{opacity:1;}
  27%{opacity:0;}
  100%{opacity:0;}
}
.hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(115deg, rgba(11,37,69,.86) 0%, rgba(11,37,69,.66) 45%, rgba(21,101,192,.5) 100%);
}
@media (prefers-reduced-motion: reduce){
  .bg-slideshow .slide{animation:none;opacity:0;}
  .bg-slideshow .slide:nth-child(1){opacity:1;}
}

.hero-pattern{
  position:absolute;inset:0;z-index:2;opacity:.5;
  background-image:radial-gradient(circle at 82% 18%, rgba(79,169,232,.35), transparent 42%),
                    radial-gradient(circle at 15% 85%, rgba(232,93,61,.22), transparent 40%);
}
.hero-inner{position:relative;z-index:3;max-width:760px;padding-bottom:80px;}
.statstrip{position:relative;z-index:3;background:rgba(255,255,255,.06);border-top:1px solid rgba(255,255,255,.14);}
.pagehero .wrap{position:relative;z-index:3;}
.hero h1{color:#fff;font-size:clamp(32px,4.4vw,52px);line-height:1.12;margin-bottom:22px;font-weight:600;}
.hero h1 span{color:var(--sky);}
.hero p.lead{color:#CBD8E8;font-size:18px;max-width:560px;margin-bottom:34px;}
.btnrow{display:flex;gap:14px;flex-wrap:wrap;}
.btn{
  font-family:var(--body);font-weight:600;font-size:14.5px;
  padding:15px 26px;border-radius:3px;display:inline-flex;align-items:center;gap:8px;
  border:1px solid transparent;cursor:pointer;transition:transform .15s, background .15s, border-color .15s;
}
.btn-primary{background:var(--coral);color:#fff;}
.btn-primary:hover{background:#D24F31;transform:translateY(-1px);}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff;background:transparent;}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);}
.btn-outline{border-color:var(--blue);color:var(--blue);background:transparent;}
.btn-outline:hover{background:var(--blue);color:#fff;}

/* stat strip */
.statstrip-inner{
  display:grid;grid-template-columns:repeat(4,1fr);
  max-width:var(--max);margin:0 auto;padding:0 32px;
}
.statstrip-inner > div{padding:34px 24px;border-right:1px solid rgba(255,255,255,.12);}
.statstrip-inner > div:last-child{border-right:none;}
@media(max-width:820px){.statstrip-inner{grid-template-columns:repeat(2,1fr);}
  .statstrip-inner > div:nth-child(2){border-right:none;}}
.statstrip .num{font-family:var(--display);font-size:34px;color:#fff;font-weight:700;line-height:1;}
.statstrip .lbl{font-family:var(--body);font-size:13px;color:#AFC0D4;margin-top:8px;}

/* section headers */
.sec-head{max-width:640px;margin-bottom:52px;}
.sec-head h2{font-size:clamp(26px,3vw,36px);}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-head.center .eyebrow{justify-content:center;}
.sec-head.center .eyebrow::before{display:none;}

/* intro band */
.introband{background:var(--paper-2);}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
@media(max-width:900px){.intro-grid{grid-template-columns:1fr;gap:40px;}}
.intro-visual{
  aspect-ratio:4/3.1;border-radius:6px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--navy) 0%, var(--blue-2) 100%);
}
.intro-visual svg{position:absolute;inset:0;width:100%;height:100%;}
.intro-figs{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:36px;border-top:1px solid var(--line);}
.intro-figs > div{padding:26px 20px 0;}
.intro-figs .num{font-family:var(--display);font-size:30px;font-weight:700;color:var(--navy);}
.intro-figs .lbl{font-size:13px;color:var(--slate);margin-top:4px;}

/* industries */
.ind-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
@media(max-width:900px){.ind-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:520px){.ind-grid{grid-template-columns:1fr;}}
.ind-cell{
  background:#fff;padding:30px 26px;transition:background .15s;position:relative;
}
.ind-cell:hover{background:var(--paper-2);}
.ind-cell .ind-ic{color:var(--blue);margin-bottom:14px;}
.ind-cell h4{font-size:15.5px;margin-bottom:6px;color:var(--navy);}
.ind-cell p{font-size:13px;margin:0;color:var(--slate);}

/* services */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
@media(max-width:900px){.svc-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:600px){.svc-grid{grid-template-columns:1fr;}}
.svc-box{
  background:#fff;padding:40px 34px;transition:background .18s, transform .18s;position:relative;
}
.svc-box:hover{background:var(--navy);transform:translateY(-2px);z-index:2;box-shadow:0 20px 40px -12px rgba(11,37,69,.35);}
.svc-box:hover h3, .svc-box:hover p, .svc-box:hover .svc-link{color:#fff !important;}
.svc-box:hover .svc-ic{background:var(--coral);color:#fff;}
.svc-ic{
  width:52px;height:52px;border-radius:8px;background:var(--paper-3);color:var(--blue);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;transition:background .18s,color .18s;
}
.svc-box h3{font-size:18.5px;margin-bottom:10px;}
.svc-box p{font-size:14px;margin-bottom:16px;}
.svc-link{font-size:13px;font-weight:600;color:var(--blue);display:inline-flex;align-items:center;gap:6px;}

/* tabs */
.tabs{width:100%;}
.tablist{
  display:flex;gap:4px;border-bottom:2px solid var(--line);margin-bottom:44px;
  overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none;
}
.tablist::-webkit-scrollbar{display:none;}
.tablist button{
  font-family:var(--body);font-size:14px;font-weight:600;
  background:none;border:none;padding:16px 22px;color:var(--slate);cursor:pointer;
  border-bottom:3px solid transparent;white-space:nowrap;transition:color .15s,border-color .15s;margin-bottom:-2px;
}
.tablist button:hover{color:var(--navy);}
.tablist button[aria-selected="true"]{color:var(--blue);border-color:var(--coral);}
.tabpanel{display:none;}
.tabpanel.active{display:block;animation:fadein .35s ease;}
@keyframes fadein{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}
.tabpanel-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start;}
@media(max-width:820px){.tabpanel-inner{grid-template-columns:1fr;}}
.tabpanel h3{font-size:24px;}
.deliverlist{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:12px;}
.deliverlist li{
  font-size:14.5px;color:var(--ink);padding-left:26px;position:relative;
}
.deliverlist li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--blue);font-weight:700;font-size:13px;
}

/* process rail */
.rail{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:34px;}
@media(max-width:820px){.rail{grid-template-columns:1fr;}}
.rail-step{
  background:var(--paper-2);padding:32px 26px;border-top:3px solid var(--blue);position:relative;
}
.rail-step .stepnum{
  font-family:var(--display);font-size:34px;font-weight:700;color:var(--line);position:absolute;top:14px;right:18px;
}
.rail-step .tag{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--blue);margin-bottom:10px;}
.rail-step h4{font-size:17px;margin-bottom:8px;}
.rail-step p{font-size:14px;margin:0;}

/* split sections */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
@media(max-width:900px){.split{grid-template-columns:1fr;}}
.split.rev > *:first-child{order:2;}
@media(max-width:900px){.split.rev > *:first-child{order:0;}}

.valuelist{display:grid;gap:26px;margin-top:12px;}
.valuelist .vitem{display:flex;gap:18px;}
.valuelist .vitem .vn{
  font-family:var(--display);color:var(--blue);font-size:15px;font-weight:700;flex:none;width:38px;
  padding-top:2px;
}
.valuelist .vitem h4{font-size:16.5px;margin-bottom:5px;}
.valuelist .vitem p{font-size:14px;margin-bottom:0;}

.panel-visual{
  border-radius:6px;padding:0;position:relative;overflow:hidden;
  background:linear-gradient(150deg,var(--navy) 0%,var(--blue-2) 100%);
  aspect-ratio:4/3.3;
}
.panel-visual svg{position:absolute;inset:0;width:100%;height:100%;}
.panel-caption{
  position:absolute;left:0;right:0;bottom:0;padding:22px 26px;
  background:linear-gradient(0deg,rgba(11,37,69,.92),transparent);
}
.panel-caption .tag{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--sky);margin-bottom:6px;}
.panel-caption h4{color:#fff;font-size:17px;margin:0;}

/* engagement format cards */
.fmt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
@media(max-width:820px){.fmt-grid{grid-template-columns:1fr;}}
.fmt-card{
  border:1px solid var(--line);border-radius:6px;padding:32px;position:relative;
  transition:box-shadow .18s, border-color .18s;
}
.fmt-card:hover{box-shadow:0 16px 32px -10px rgba(11,37,69,.16);border-color:var(--blue);}
.fmt-card .fmt-tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.05em;color:var(--blue);
  background:var(--paper-3);padding:4px 10px;border-radius:3px;margin-bottom:16px;
}
.fmt-card h3{font-size:19px;}
.fmt-card p{font-size:14px;margin:0;}

/* CTA band */
.ctaband{
  background:linear-gradient(120deg,var(--navy) 0%,var(--blue-2) 100%);color:#fff;padding:64px;
  display:flex;justify-content:space-between;align-items:center;gap:32px;position:relative;overflow:hidden;
  border-radius:6px;
}
.ctaband h2{color:#fff;margin-bottom:8px;font-size:28px;}
.ctaband p{color:#CBD8E8;margin:0;}
.ctaband .btnrow{flex:none;}
@media(max-width:720px){.ctaband{flex-direction:column;align-items:flex-start;padding:40px;}}

/* forms */
.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
@media(max-width:620px){.formgrid{grid-template-columns:1fr;}}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-family:var(--body);font-size:13px;font-weight:600;color:var(--navy);}
.field input,.field select,.field textarea{
  font-family:var(--body);font-size:14.5px;padding:13px 15px;border:1px solid var(--line);
  border-radius:4px;background:#fff;color:var(--ink);width:100%;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);}
.field textarea{resize:vertical;min-height:120px;}
.formnote{font-size:12.5px;color:var(--slate);margin-top:16px;}
.formcard{background:#fff;border:1px solid var(--line);border-radius:8px;padding:40px;box-shadow:0 24px 48px -20px rgba(11,37,69,.12);}
.formstatus{display:none;padding:13px 16px;border-radius:4px;font-size:14px;margin-bottom:20px;font-weight:500;}
.formstatus.show{display:block;}
.formstatus.ok{background:#E8F3EC;color:#1E7B42;border:1px solid #BEE3C8;}

/* contact info blocks */
.infoblock{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);}
.infoblock:last-child{border-bottom:none;}
.infoblock .ic{width:40px;height:40px;flex:none;border-radius:6px;background:var(--paper-3);display:flex;align-items:center;justify-content:center;color:var(--blue);}
.infoblock h4{font-size:15px;margin-bottom:4px;}
.infoblock p{font-size:14px;margin-bottom:0;}

/* footer */
footer.site{background:var(--navy);color:#AFC0D4;padding:64px 0 30px;}
.footgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px;}
@media(max-width:820px){.footgrid{grid-template-columns:1fr 1fr;}}
@media(max-width:480px){.footgrid{grid-template-columns:1fr;}}
footer.site h5{font-family:var(--display);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:#fff;margin-bottom:20px;}
footer.site a{display:block;font-size:14px;padding:6px 0;color:#AFC0D4;transition:color .15s;}
footer.site a:hover{color:#fff;}
.footbrand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:600;color:#fff;font-size:19px;margin-bottom:14px;}
.footbottom{border-top:1px solid rgba(255,255,255,.12);padding-top:26px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;color:#7E90A6;}

/* page hero (interior) */
.pagehero{
  background:linear-gradient(115deg, rgba(11,37,69,.97) 0%, rgba(21,101,192,.7) 100%),
             linear-gradient(180deg,#0B2545 0%,#123262 100%);
  color:#fff;padding:68px 0 60px;position:relative;overflow:hidden;
}
.pagehero .wrap{position:relative;}
.pagehero h1{color:#fff;font-size:clamp(28px,4vw,42px);}
.pagehero p{color:#CBD8E8;max-width:580px;font-size:16.5px;}
.breadcrumb{font-family:var(--body);font-size:13px;font-weight:600;color:var(--sky);text-transform:uppercase;letter-spacing:.04em;margin-bottom:16px;}
.breadcrumb a{color:var(--sky);}
.breadcrumb span{color:#4A6485;margin:0 8px;}

/* generic icon-circle */
.icon-circle{width:46px;height:46px;border-radius:50%;background:var(--paper-3);color:var(--blue);display:flex;align-items:center;justify-content:center;}