/* ============================================================
   DESURGE — Option B design system
   Dark, engineering-grade water/surge theme
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@500;600;700&family=Inter:wght@400;500;600&family=Space+Mono:wght@400;700&display=swap');

:root{
  --bg:#0a1620;
  --bg-2:#0b1a26;
  --panel:#0e2130;
  --panel-2:#102636;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --teal:#38d6c4;
  --teal-bright:#4fe3d1;
  --teal-dim:#1f9d90;
  --text:#e9f1f4;
  --muted:#8ba2b0;
  --muted-2:#63798a;
  --white:#ffffff;
  --radius:16px;
  --maxw:1180px;
  --mono:'Space Mono',ui-monospace,monospace;
  --head:'Poppins',system-ui,sans-serif;
  --body:'Inter',system-ui,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--body);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:var(--head);font-weight:600;line-height:1.08;margin:0}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{
  font-family:var(--mono);font-size:12px;font-weight:700;
  letter-spacing:.34em;text-transform:uppercase;color:var(--teal);
  display:block;margin-bottom:18px;
}
.section{padding:82px 0}
.section-sm{padding:54px 0}
.center{text-align:center}
.accent{color:var(--teal)}
.lead{color:var(--muted);font-size:18px;max-width:640px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--body);font-weight:600;font-size:15px;
  padding:13px 22px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;transition:.18s ease;white-space:nowrap;
}
.btn-primary{background:var(--teal);color:#052024;border-color:var(--teal)}
.btn-primary:hover{background:var(--teal-bright);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal)}
.btn-link{color:var(--text);font-weight:600}
.btn-link:hover{color:var(--teal)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(9,20,29,.72);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;flex:0 0 auto}
.brand-logo{display:block;width:255px;height:auto;max-height:56px;object-fit:contain}
.brand .logo{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(150deg,var(--teal),var(--teal-dim));
  display:grid;place-items:center;color:#04181b;flex:0 0 auto;
}
.brand .logo svg{width:20px;height:20px}
.brand b{font-family:var(--head);font-weight:700;letter-spacing:.14em;font-size:18px}
.brand small{display:block;font-size:10px;letter-spacing:.18em;color:var(--muted-2);text-transform:uppercase;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:14.5px;color:var(--muted);font-weight:500;transition:.15s}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-item{position:relative;display:flex;align-items:center;height:70px}
.nav-link{display:flex;align-items:center;height:70px}
.has-dropdown > .nav-link::after{
  content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(45deg);margin-left:8px;margin-top:-4px;opacity:.75;
}
.nav-dropdown{
  position:absolute;top:62px;left:50%;width:min(320px,calc(100vw - 48px));max-height:calc(100vh - 96px);
  overflow:auto;transform:translate(-50%,10px);opacity:0;pointer-events:none;z-index:80;
  background:#081118;border:1px solid var(--line-2);border-radius:12px;
  box-shadow:0 24px 70px rgba(0,0,0,.42);padding:10px;transition:opacity .16s ease,transform .16s ease;
}
.has-dropdown:hover .nav-dropdown,
.has-dropdown:focus-within .nav-dropdown{opacity:1;pointer-events:auto;transform:translate(-50%,0)}
.nav-drop-main{
  display:block;padding:10px 12px;margin-bottom:8px;border-radius:8px;background:rgba(56,214,196,.08);
  color:var(--teal) !important;font-weight:600 !important;
}
.nav-drop-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.nav-drop-grid-compact{grid-template-columns:1fr;gap:8px}
.nav-drop-group{border:1px solid var(--line);border-radius:12px;padding:14px;background:rgba(255,255,255,.02)}
.nav-drop-category{
  display:block;color:var(--text) !important;font-weight:700 !important;font-size:14px !important;
  line-height:1.25;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.02);
}
.nav-drop-category:hover{border-color:rgba(56,214,196,.42);color:var(--teal) !important}
.nav-drop-category small{display:block;color:var(--muted);font-size:12px;font-weight:500;line-height:1.35;margin-top:5px}
.nav-drop-product{
  display:block;color:var(--muted) !important;font-size:12.5px !important;font-weight:500 !important;
  line-height:1.35;padding:5px 0;
}
.nav-drop-product:hover{color:var(--teal) !important}
.nav-cta{display:flex;align-items:center;gap:18px}
.nav-toggle{display:none;background:none;border:0;color:var(--text);cursor:pointer;padding:6px}
.nav-toggle svg{width:26px;height:26px}

/* ---------- hero ---------- */
.hero{position:relative;isolation:isolate;padding:92px 0 30px;overflow:hidden;min-height:0}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center 30%;filter:brightness(1.18) contrast(1.06) saturate(1.08)}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(9,19,27,.08) 0%,rgba(9,19,27,.18) 58%,rgba(10,22,32,.56) 100%),
             linear-gradient(90deg,rgba(9,19,27,.76) 0%,rgba(9,19,27,.34) 38%,rgba(9,19,27,.04) 76%);
}
.hero h1{font-size:clamp(40px,6vw,74px);font-weight:700;letter-spacing:-.5px;max-width:15ch}
.hero .eyebrow,.hero h1{text-shadow:0 2px 18px rgba(0,0,0,.48)}
.hero h1 .teal{color:var(--teal)}
.hero-actions{display:flex;gap:16px;margin-top:34px;flex-wrap:wrap}

/* ---------- stats bar ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(15,33,46,.6),rgba(11,24,34,.6));
  overflow:hidden;margin-top:38px;
}
.stat{padding:26px 28px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat .num{font-family:var(--head);font-weight:700;font-size:34px;color:var(--teal);line-height:1}
.stat .num sup{font-size:.5em;top:-.7em}
.stat .lbl{color:var(--muted);font-size:13.5px;margin-top:8px}
.hero + .section-sm{padding-top:34px}

/* ---------- calculator ---------- */
.calc-head h2{font-size:clamp(30px,4vw,44px);max-width:16ch}
.calculator-feature{position:relative}
.calculator-feature-alt{background:linear-gradient(180deg,var(--bg),var(--bg-2))}
.calc-highlight{
  box-shadow:0 24px 80px rgba(0,0,0,.18);
  border-color:rgba(56,214,196,.18);
}
.calc-grid{
  display:grid;grid-template-columns:1.15fr 1fr;gap:0;margin-top:40px;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:var(--panel);
}
.calc-inputs{padding:34px 36px;border-right:1px solid var(--line)}
.calc-results{padding:34px 36px;background:linear-gradient(180deg,rgba(16,38,54,.6),rgba(11,24,34,.3))}
.calc-note{font-size:13px;color:var(--muted);margin-bottom:26px}
.workbook-calc{padding:30px}
.calc-scroll{width:100%;overflow-x:auto;margin-top:18px}
.calc-table{width:100%;border-collapse:collapse;min-width:640px;font-size:13px}
.calc-table th,
.calc-table td{border:1px solid var(--line);padding:10px 11px;text-align:left;vertical-align:middle}
.calc-table th{font-weight:700;color:var(--white);background:rgba(255,255,255,.06)}
.calc-table td:first-child{color:var(--text);font-weight:500}
.calc-table td:nth-child(2){min-width:142px}
.calc-table td:nth-child(3){width:104px}
.calc-table input,
.calc-table select{
  width:100%;height:38px;background:rgba(9,19,27,.72);border:1px solid var(--line-2);
  border-radius:8px;color:var(--text);font-family:var(--body);font-size:13px;padding:8px 10px;
}
.calc-table select{cursor:pointer}
.calc-table input:focus,
.calc-table select:focus{outline:none;border-color:var(--teal)}
.calc-table output{display:block;font-family:var(--mono);font-size:13px;color:var(--teal);white-space:nowrap}
.calc-table .output-row td{background:rgba(107,217,104,.12)}
.calc-table .output-row output{color:#8af27d;font-weight:700}
.formula-list{border:1px solid var(--line);border-radius:12px;margin-top:18px;padding:16px;background:rgba(9,19,27,.42)}
.formula-list h3{font-family:var(--body);font-size:14px;margin-bottom:10px;color:var(--white)}
.formula-list p{display:grid;grid-template-columns:minmax(180px,.9fr) 1fr;gap:12px;margin:8px 0;color:var(--muted);font-size:12.5px}
.formula-list b{color:var(--text);font-weight:600}
.formula-list span{font-family:var(--mono);color:var(--teal)}
.field{margin-bottom:26px}
.field .row{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:12px}
.field label{font-size:14px;color:var(--text);font-weight:500}
.field .val{font-family:var(--mono);color:var(--teal);font-size:15px}
input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:4px;border-radius:4px;
  background:rgba(255,255,255,.12);outline:none;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:18px;height:18px;border-radius:50%;
  background:var(--teal);cursor:pointer;border:3px solid #06222528;
  box-shadow:0 0 0 4px rgba(56,214,196,.18);
}
input[type=range]::-moz-range-thumb{
  width:16px;height:16px;border:0;border-radius:50%;background:var(--teal);cursor:pointer;
}
.seg{display:flex;gap:8px;flex-wrap:wrap;margin-top:4px}
.seg button{
  font-family:var(--body);font-size:13px;font-weight:500;
  padding:9px 15px;border-radius:9px;border:1px solid var(--line-2);
  background:transparent;color:var(--muted);cursor:pointer;transition:.15s;
}
.seg button.on{background:var(--teal);color:#052024;border-color:var(--teal);font-weight:600}
.seg button:hover:not(.on){border-color:var(--teal);color:var(--text)}

/* number inputs inside calculators */
.calc-inputs input[type=number],
.calc-inputs input[type=text]{
  width:100%;background:rgba(9,19,27,.55);border:1px solid var(--line-2);
  border-radius:10px;color:var(--text);font-family:var(--body);font-size:15px;
  padding:11px 14px;-moz-appearance:textfield;transition:border-color .15s;
}
.calc-inputs input[type=number]:focus{outline:none;border-color:var(--teal)}
.calc-inputs input[type=number]::-webkit-outer-spin-button,
.calc-inputs input[type=number]::-webkit-inner-spin-button{opacity:.35;height:22px}

@media (max-width:760px){
  .workbook-calc{padding:24px 18px}
  .formula-list p{grid-template-columns:1fr}
}

.result-eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.3em;color:var(--muted-2);text-transform:uppercase}
.result-big{font-family:var(--head);font-weight:700;font-size:58px;color:var(--white);line-height:1;margin:6px 0 4px}
.result-big small{font-size:22px;color:var(--muted);font-weight:600;margin-left:6px}
.result-sub{color:var(--muted);font-size:13px;margin-bottom:26px}
.result-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:22px}
.result-card{border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:rgba(9,19,27,.4)}
.result-card .rc-num{font-family:var(--head);font-weight:700;font-size:26px;color:var(--teal)}
.result-card .rc-lbl{font-size:12px;color:var(--muted);margin-top:4px}
.advice{
  border:1px solid rgba(56,214,196,.28);background:rgba(56,214,196,.07);
  border-radius:12px;padding:15px 17px;font-size:13.5px;color:var(--text);
}
.advice b{color:var(--teal)}

/* ---------- capability cards ---------- */
.cap-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:44px}
.cap{
  border-radius:var(--radius);overflow:hidden;
  display:block;border:1px solid var(--line);background:var(--panel);
  transition:.2s;
}
.cap:hover{transform:translateY(-3px);border-color:var(--line-2)}
.cap img{width:100%;height:260px;object-fit:cover;background:#fff}
.cap .cap-body{padding:26px 28px}
.cap .cap-cat{font-family:var(--mono);font-size:11px;letter-spacing:.24em;color:var(--teal);text-transform:uppercase}
.cap h3{font-size:23px;margin:0 0 8px}
.cap p{color:#c3d2da;font-size:14px;margin:0;max-width:44ch}

/* ---------- signature product ---------- */
.signature{background:linear-gradient(180deg,var(--bg),var(--bg-2))}
.signature h2{font-size:clamp(32px,4.5vw,50px)}
.zeros{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:44px;max-width:820px;margin-left:auto;margin-right:auto}
.zero{border:1px solid var(--line);border-radius:14px;padding:26px 12px;text-align:center;background:var(--panel)}
.zero .z-num{font-family:var(--head);font-weight:700;font-size:40px;color:var(--teal);line-height:1}
.zero .z-lbl{font-size:12.5px;color:var(--muted);margin-top:8px}

/* ---------- trusted by ---------- */
.chips{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;max-width:840px;margin:40px auto 0}
.chip{
  border:1px solid var(--line-2);border-radius:999px;padding:10px 20px;
  font-size:14px;color:var(--text);background:rgba(255,255,255,.02);transition:.15s;
}
.chip:hover{border-color:var(--teal);color:var(--teal)}

/* ---------- industries / areas ---------- */
.industries-section{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.industry-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:42px 34px;
  margin:48px auto 0;max-width:1080px;text-align:center;
}
.industry-card{min-width:0}
.industry-photo{
  width:min(220px,100%);aspect-ratio:1;margin:0 auto 24px;border-radius:50%;
  padding:10px;border:1px dashed rgba(233,241,244,.36);background:rgba(255,255,255,.04);
  box-shadow:0 20px 60px rgba(0,0,0,.18);
}
.industry-photo::before{
  content:"";display:block;width:100%;height:100%;border-radius:50%;
  border:7px solid rgba(255,255,255,.9);background:var(--industry-image) center/cover no-repeat #fff;
}
.industry-card h3{font-size:22px;line-height:1.25;margin:0 0 12px;color:var(--text)}
.industry-card ul{list-style:none;margin:0;padding:0;color:var(--muted);font-size:14px;line-height:1.75}
.industry-card li{margin:0}
.approvals{margin-top:30px;text-align:center;font-size:13px;color:var(--muted)}
.approvals b{font-family:var(--mono);color:var(--teal);letter-spacing:.16em;font-size:11px;text-transform:uppercase;margin-right:6px}

/* ---------- logo / certificate / gallery / downloads ---------- */
.logo-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  max-width:900px;margin:38px auto 0;
}
.client-logo-grid{
  grid-template-columns:repeat(6,minmax(0,1fr));max-width:1120px;gap:18px;
}
.logo-carousel{
  width:100%;overflow:hidden;margin:38px auto 0;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.logo-track{
  display:flex;gap:16px;width:max-content;
  animation:logo-scroll 72s linear infinite;
}
.logo-carousel:hover .logo-track{animation-play-state:paused}
.logo-tile{
  min-height:112px;width:190px;flex:0 0 190px;border:1px solid var(--line);border-radius:14px;
  background:#fff;display:grid;place-items:center;padding:18px;
}
.logo-tile img{max-height:74px;max-width:100%;object-fit:contain}
.client-logo-grid .logo-tile{width:100%;min-height:116px;flex:initial}
@keyframes logo-scroll{to{transform:translateX(calc(-50% - 8px))}}
@media (prefers-reduced-motion:reduce){
  .logo-carousel{overflow-x:auto;mask-image:none;-webkit-mask-image:none}
  .logo-track{animation:none}
}
.client-chip-wall{max-width:1040px}
.cert-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:36px}
.cert-card{
  border:1px solid var(--line);border-radius:14px;background:var(--panel);
  padding:16px;text-align:left;transition:.18s;display:block;
}
.cert-card:hover{transform:translateY(-3px);border-color:var(--teal)}
.cert-thumb{aspect-ratio:3/4;border-radius:10px;overflow:hidden;background:rgba(255,255,255,.04);margin-bottom:14px}
.cert-thumb img{width:100%;height:100%;object-fit:cover;object-position:top}
.cert-card h3{font-size:17px;margin-bottom:8px}
.cert-card p{font-size:13.5px;color:var(--muted);margin:0}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.gallery-card{
  position:relative;display:block;overflow:hidden;border-radius:14px;border:1px solid var(--line);
  background:var(--panel);aspect-ratio:4/3;transition:.18s;
}
.gallery-card:hover{transform:translateY(-3px);border-color:var(--teal)}
.gallery-card img{width:100%;height:100%;object-fit:cover}
.gallery-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,17,24,0) 42%,rgba(8,17,24,.92) 100%)}
.gallery-caption{position:absolute;left:18px;right:18px;bottom:16px;z-index:1}
.gallery-caption span{font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--teal)}
.gallery-caption h3{font-size:18px;margin-top:5px}
.download-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.download-card{
  border:1px solid var(--line);border-radius:14px;background:var(--panel);
  padding:24px 22px;display:flex;min-height:250px;flex-direction:column;transition:.18s;
}
.download-card:hover{transform:translateY(-3px);border-color:var(--teal)}
.download-icon{
  width:54px;height:54px;border-radius:12px;background:rgba(56,214,196,.1);border:1px solid rgba(56,214,196,.28);
  display:grid;place-items:center;color:var(--teal);font-family:var(--mono);font-weight:700;font-size:13px;margin-bottom:20px;
}
.download-card h3{font-size:20px;margin-bottom:10px}
.download-card p{font-size:14px;color:var(--muted);margin:0 0 18px;flex:1}
.download-card .more{font-size:14px;font-weight:600;color:var(--teal)}

/* ---------- footer ---------- */
.site-footer{background:#081119;border-top:1px solid var(--line);padding:64px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px}
.footer-logo{display:block;width:238px;max-width:100%;height:auto}
.foot-brand b{font-family:var(--head);font-weight:700;letter-spacing:.14em;font-size:22px}
.foot-brand p{color:var(--muted);font-size:14px;max-width:32ch;margin-top:14px}
.foot-col h4{font-family:var(--mono);font-size:11px;letter-spacing:.26em;color:var(--teal);text-transform:uppercase;margin-bottom:18px;font-weight:700}
.foot-col a,.foot-col p{display:block;color:var(--muted);font-size:14.5px;margin-bottom:10px;transition:.15s}
.foot-col a:hover{color:var(--teal)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:52px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted-2);font-size:12.5px;flex-wrap:wrap;gap:10px}
.foot-bottom .ik{font-family:var(--mono);letter-spacing:.14em}
.foot-bottom a{color:var(--muted);font-weight:600}
.foot-bottom a:hover{color:var(--teal)}

/* ---------- generic page / catalog ---------- */
.page-hero{padding:80px 0 46px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.page-hero h1{font-size:clamp(32px,5vw,54px)}
.page-hero .lead{margin-top:18px}
.breadcrumb{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--muted-2);margin-bottom:20px;text-transform:uppercase}
.breadcrumb a:hover{color:var(--teal)}
.prose{max-width:760px;color:#cdd9e0;font-size:16.5px}
.prose h2{font-size:28px;margin:40px 0 14px;color:var(--white)}
.prose h3{font-size:20px;margin:30px 0 10px;color:var(--teal)}
.prose p{margin:0 0 16px}
.prose ul{margin:0 0 20px;padding-left:0;list-style:none}
.prose ul li{position:relative;padding-left:26px;margin-bottom:10px}
.prose ul li::before{content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:2px;background:var(--teal);transform:rotate(45deg)}
.prose strong{color:var(--text)}

.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px}
.card-grid.two{grid-template-columns:repeat(2,1fr)}
.wrap > .card-grid:first-child{margin-top:0}
.pcard{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:var(--panel);transition:.2s;display:flex;flex-direction:column;
}
.pcard:hover{transform:translateY(-3px);border-color:var(--teal)}
.pcard .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--panel-2)}
.pcard .thumb img{width:100%;height:100%;object-fit:cover}
.pcard .pc-body{padding:22px 24px;flex:1;display:flex;flex-direction:column}
.pcard .pc-cat{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--teal);text-transform:uppercase}
.pcard h3{font-size:20px;margin:9px 0 8px}
.pcard p{color:var(--muted);font-size:14px;margin:0 0 16px;flex:1}
.pcard .more{color:var(--teal);font-size:14px;font-weight:600}

.spec-table{width:100%;border-collapse:collapse;margin:26px 0;font-size:14.5px}
.spec-table td{padding:13px 16px;border:1px solid var(--line);vertical-align:top}
.spec-table td:first-child{color:var(--muted);width:38%;font-weight:500}
.spec-table tr:nth-child(odd){background:rgba(255,255,255,.02)}

.two-col{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:start}
.side-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel);position:sticky;top:94px}
.side-card img{width:100%;aspect-ratio:4/5;object-fit:cover}
.side-card .sc-body{padding:22px 24px}

.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.member{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel)}
.member img{width:100%;aspect-ratio:1;object-fit:cover;object-position:top}
.member .m-body{padding:22px 24px}
.member h3{font-size:20px}
.member .role{color:var(--teal);font-size:13px;font-family:var(--mono);letter-spacing:.08em;margin:6px 0 12px}
.member p{color:var(--muted);font-size:14px;margin:0}

.value-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:40px}
.value{border:1px solid var(--line);border-radius:14px;padding:28px 30px;background:var(--panel)}
.value h3{font-size:20px;color:var(--white);margin-bottom:10px}
.value h3 .k{color:var(--teal);font-family:var(--mono);font-size:13px;letter-spacing:.1em;margin-right:8px}
.value p{color:var(--muted);font-size:14.5px;margin:0}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-top:44px}
.contact-info .ci{display:flex;gap:16px;margin-bottom:26px;align-items:flex-start}
.contact-info .ci .ic{width:42px;height:42px;border-radius:10px;background:var(--panel);border:1px solid var(--line);display:grid;place-items:center;color:var(--teal);flex:0 0 auto}
.contact-info .ci h4{font-size:16px;margin-bottom:3px}
.contact-info .ci p,.contact-info .ci a{color:var(--muted);font-size:14.5px;margin:0}
.contact-info .ci a:hover{color:var(--teal)}
.form-card{border:1px solid var(--line);border-radius:var(--radius);padding:30px 32px;background:var(--panel)}
.form-card label{display:block;font-size:13px;color:var(--muted);margin:0 0 8px}
.form-card input,.form-card textarea,.form-card select{
  width:100%;background:rgba(9,19,27,.6);border:1px solid var(--line-2);border-radius:10px;
  color:var(--text);font-family:var(--body);font-size:15px;padding:12px 14px;margin-bottom:20px;
}
.form-card input:focus,.form-card textarea:focus{outline:none;border-color:var(--teal)}
.form-note{font-size:13px;color:var(--muted);margin-top:6px}

/* ---------- misc ---------- */
.divider{height:1px;background:var(--line);border:0;margin:0}
.mobile-menu{display:none}
.mobile-drop-toggle{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  background:transparent;border:0;color:var(--muted);font-family:var(--body);
  font-size:16px;text-align:left;padding:11px 24px;cursor:pointer;
}
.mobile-drop-toggle:hover,.mobile-drop-toggle.open{color:var(--teal)}
.mobile-drop-toggle svg{width:18px;height:18px;transition:transform .16s ease}
.mobile-drop-toggle.open svg{transform:rotate(180deg)}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .nav-links{display:none}
  .nav-toggle{display:block}
  .mobile-menu.open{display:block;border-top:1px solid var(--line);padding:12px 0 16px;max-height:calc(100vh - 70px);overflow:auto}
  .mobile-menu a{display:block;padding:11px 24px;color:var(--muted)}
  .mobile-menu a:hover{color:var(--teal)}
  .mobile-subnav{display:none;gap:8px;margin:2px 24px 10px;padding:0}
  .mobile-subnav.open{display:grid}
  .mobile-subnav .mobile-cat{color:var(--text);font-weight:600;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.02)}
  .mobile-subnav .mobile-cat-main{color:var(--teal)}
  .stats{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .calc-grid{grid-template-columns:1fr}
  .calc-inputs{border-right:0;border-bottom:1px solid var(--line)}
  .cap-grid{grid-template-columns:1fr}
  .industry-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 24px}
  .zeros{grid-template-columns:repeat(2,1fr)}
  .card-grid,.card-grid.two{grid-template-columns:1fr}
  .logo-grid{grid-template-columns:repeat(2,1fr)}
  .client-logo-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cert-grid,.gallery-grid,.download-grid{grid-template-columns:1fr 1fr}
  .two-col{grid-template-columns:1fr}
  .side-card{position:static}
  .team-grid,.value-grid,.contact-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .section{padding:64px 0}
  .section-sm{padding:46px 0}
}
@media (max-width:560px){
  .stats{grid-template-columns:1fr 1fr;margin-top:30px}
  .stat{padding:20px 22px;border-right:1px solid var(--line)}
  .stat:nth-child(even){border-right:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .result-cards{grid-template-columns:1fr}
  .industry-grid{grid-template-columns:1fr;gap:34px;margin-top:34px}
  .industry-photo{width:min(230px,78vw);margin-bottom:18px}
  .industry-card h3{font-size:21px}
  .zeros{grid-template-columns:1fr}
  .cert-grid,.gallery-grid,.download-grid{grid-template-columns:1fr}
  .client-logo-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .client-logo-grid .logo-tile{min-height:98px;padding:14px}
}

/* ---------- page hero background images (inner pages) ---------- */
.page-hero{position:relative;isolation:isolate;overflow:hidden}
.page-hero.has-bg{padding:74px 0 36px;border-bottom:0;min-height:300px;display:flex;align-items:flex-end}
.page-hero.has-bg > .wrap{width:100%;flex:0 0 auto}
.page-hero-bg{position:absolute;inset:0;z-index:-2}
.page-hero-bg picture,.hero-bg picture{display:block;width:100%;height:100%}
.page-hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center 40%;filter:brightness(1.2) contrast(1.06) saturate(1.08)}
.page-hero.has-bg::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(9,20,29,.04),rgba(9,20,29,.16) 68%,rgba(10,22,32,.52) 100%),
             linear-gradient(90deg,rgba(9,20,29,.72),rgba(9,20,29,.28) 42%,rgba(9,20,29,.02) 84%)}
.page-hero .breadcrumb,.page-hero h1,.page-hero .lead,.page-hero .eyebrow{text-shadow:0 2px 18px rgba(0,0,0,.5)}
/* tighten the gap between hero and the first content section */
.page-hero + .section{padding-top:34px}
/* header CTA — shorter, consistent with in-page buttons */
.nav-cta .btn-primary{padding:10px 20px;font-size:14px}

/* ---------- mobile refinements ---------- */
@media (max-width:640px){
  .wrap{padding:0 18px}
  .nav{height:64px}
  .mobile-menu.open{max-height:calc(100vh - 64px)}
  .hero{padding:58px 0 24px;min-height:0}
  .hero-bg img{object-position:center top}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%;justify-content:center}
  .cap img{height:220px}
  .page-hero.has-bg{padding:50px 0 28px;min-height:240px}
  .page-hero-bg img{object-position:center top}
  .page-hero .breadcrumb{font-size:10.5px;margin-bottom:12px}
  .page-hero .lead{font-size:15px;margin-top:12px}
  .page-hero + .section{padding-top:24px}
  .result-cards{grid-template-columns:1fr !important}
  .eyebrow{letter-spacing:.22em}
  .section{padding:52px 0}
  .section-sm{padding:40px 0}
  .hero + .section-sm{padding-top:28px}
  .calc-inputs,.calc-results{padding:26px 22px}
  .prose{font-size:16px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .nav-cta .btn-primary{display:none}   /* Contact lives in the menu on phones */
  .hero h1{font-size:38px}
  .brand-logo{width:206px;max-height:46px}
}
@media (max-width:360px){
  .stats{grid-template-columns:1fr}
  .stat,.stat:nth-child(even){border-right:0}
  .stat:nth-child(n+2){border-top:1px solid var(--line)}
}

/* September 2026 client revisions */
.site-header,.site-footer{--text:#172c37;--muted:#475d68;--muted-2:#52656e;--line:#dce4e8;--line-2:#b8c8cf;--teal:#08776d;background:#fff;color:var(--text)}
.site-header .nav-dropdown{background:#fff;box-shadow:0 12px 36px #172c3726}
.site-header .btn-primary{background:#08776d;color:#fff}
.site-header .nav-links a:hover,.site-header .nav-links a.active{color:#08776d}
.footer-office{display:grid;grid-template-columns:1fr 1.5fr;gap:32px;margin-top:36px;padding-top:32px;border-top:1px solid var(--line)}
.footer-office h3{margin-bottom:14px}.footer-office p{color:var(--muted);margin-bottom:16px}.footer-office a{color:var(--teal);font-weight:600}
.footer-office iframe{width:100%;height:280px;border:0;border-radius:12px}
.company-team-photo{margin:40px auto 0;max-width:1000px}.company-team-photo img{width:100%;height:auto;border-radius:16px}.company-team-photo figcaption{margin-top:12px;color:var(--muted);text-align:center}
.calc-grid,.workbook-calc{min-width:0;max-width:100%}.calc-table{min-width:0;table-layout:fixed}.calc-table th:first-child{width:48%}.calc-table th:nth-child(2){width:30%}.calc-table th:nth-child(3){width:22%}.calc-table td:nth-child(2){min-width:0}.calc-table input,.calc-table select{min-width:0;max-width:100%}.calc-table td{overflow-wrap:anywhere}.calc-table output{white-space:normal}
[hidden]{display:none!important}.calc-submit{margin-top:24px}.calc-status{font-size:14px;color:var(--muted);margin-top:12px}
.logo-track{animation-play-state:paused}.logos-ready .logo-track{animation-play-state:running}.logo-carousel:hover .logo-track,.logo-carousel:focus-within .logo-track{animation-play-state:paused}
.client-group{margin-top:40px}.client-group h3{font-size:24px}.cert-thumb{height:300px}.cert-thumb img{object-fit:contain;background:#fff}
@media(max-width:640px){
 .site-header .brand-logo{width:160px}.nav-cta{gap:6px}.nav-cta .btn-primary{display:inline-flex;padding:9px 12px;font-size:13px}
 .workbook-calc.calc-inputs{padding:20px 12px}.calc-table{font-size:12px}.calc-table th,.calc-table td{padding:9px 5px}.calc-table th:first-child{width:40%}.calc-table th:nth-child(2){width:34%}.calc-table th:nth-child(3){width:26%}.calc-table input,.calc-table select{font-size:16px;padding:8px 4px}.calc-table output{font-size:12px}.calc-submit{width:100%}.footer-office{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){.logo-carousel{overflow-x:auto}.logo-track{animation:none!important}.logo-track [aria-hidden="true"]{display:none}}
.cert-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:900px){.cert-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.cert-grid{grid-template-columns:1fr}}
.cert-card{min-width:0}.cert-thumb{width:100%;aspect-ratio:auto}

/* Keep the complete surge vessel visible in capability and product cards. */

.foot-col .footer-contact-name{margin-top:20px}

/* Show complete equipment photographs, including portrait vessels. */
.cap img,.pcard .thumb img,.side-card img,.gallery-card img{object-fit:contain;object-position:center;background:#f3f5f7}
.industry-photo::before{box-sizing:border-box;background-size:contain;background-origin:content-box;padding:14%}
.calc-note{margin:20px 0 0;font-size:14px;line-height:1.65;color:var(--muted)}
@media(min-width:901px){.industry-card:last-child:nth-child(3n + 1){grid-column:2}}
/* Keep gallery labels below the equipment instead of covering the photograph. */
.gallery-card{aspect-ratio:auto}
.gallery-card img{display:block;aspect-ratio:4/3;height:auto}
.gallery-card::after{display:none}
.gallery-caption{position:static;padding:16px 18px}

.engineering-faq{margin-top:26px;max-width:880px}.engineering-faq details{padding:20px 0;border-bottom:1px solid var(--line)}.engineering-faq summary{cursor:pointer;font-size:18px;font-weight:600;line-height:1.5}.engineering-faq p{margin-top:12px;color:var(--muted);line-height:1.7}.engineering-faq a{color:var(--teal)}

/* Certificate scans keep their native proportions, with no added image mat. */
.certificate-carousel{position:relative;margin-top:28px;min-width:0;padding:0 56px}
.certificate-controls{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:16px}
.certificate-status{font-size:13px;color:var(--muted);margin-right:6px}
.certificate-controls button{position:absolute;top:calc(50% + 16px);transform:translateY(-50%);z-index:1;width:44px;height:44px;border:1px solid var(--line);border-radius:50%;background:var(--panel);color:var(--text);font-size:24px;cursor:pointer}
.certificate-prev{left:0}
.certificate-next{right:0}
.certificate-controls button:hover:not(:disabled){border-color:var(--teal);color:var(--teal)}
.certificate-controls button:disabled{opacity:.3;cursor:default}
.certificate-track.cert-grid{display:flex;gap:18px;margin:0;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;align-items:stretch;padding:3px 0}
.certificate-track::-webkit-scrollbar{display:none}
.certificate-track .cert-card{flex:0 0 calc((100% - 54px)/4);min-width:0;padding:0;overflow:hidden;scroll-snap-align:start;display:flex;flex-direction:column}
.certificate-track .cert-card:hover{transform:none}
.certificate-track .cert-thumb{height:auto;aspect-ratio:auto;margin:0;border-radius:0;background:transparent}
.certificate-track .cert-thumb img{display:block;width:100%;height:auto;aspect-ratio:auto;background:transparent}
.certificate-caption{padding:16px;flex:1}
.certificate-controls button:focus-visible,.certificate-track:focus-visible,.certificate-track .cert-card:focus-visible{outline:2px solid var(--teal);outline-offset:-2px}
@media(max-width:1000px){.certificate-track .cert-card{flex-basis:calc((100% - 18px)/2)}}
@media(max-width:600px){.certificate-carousel{padding:0 40px}.certificate-controls button{width:34px;height:44px}.certificate-track .cert-card{flex-basis:100%}}
.certificate-viewer-open{overflow:hidden}
.certificate-lightbox{width:min(1100px,96vw);max-width:96vw;max-height:94dvh;padding:16px;border:1px solid var(--line);border-radius:14px;background:var(--panel);color:var(--text);margin:auto}
.certificate-lightbox::backdrop{background:rgba(0,0,0,.86)}
.certificate-lightbox-toolbar{display:flex;gap:16px;align-items:center;justify-content:space-between;margin-bottom:12px}
.certificate-lightbox-title{font-size:18px;line-height:1.4;margin:0}
.certificate-lightbox button{flex-shrink:0;width:44px;height:44px;border:1px solid var(--line);border-radius:50%;background:var(--bg);color:var(--text);font-size:26px;cursor:pointer}
.certificate-lightbox button:disabled{opacity:.3;cursor:default}
.certificate-lightbox button:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.certificate-lightbox-body{display:flex;align-items:center;justify-content:space-between;gap:12px}
.certificate-lightbox-image{display:block;min-width:0;width:auto;height:auto;max-width:calc(100% - 112px);max-height:calc(94dvh - 150px);object-fit:contain}
.certificate-lightbox-status{text-align:center;color:var(--muted);font-size:13px;margin:12px 0 0}
@media(max-width:600px){.certificate-lightbox{padding:10px}.certificate-lightbox-body{gap:5px}.certificate-lightbox-body button{width:34px;height:40px}.certificate-lightbox-image{max-width:calc(100% - 78px)}.certificate-lightbox-title{font-size:15px}}

/* Remove added image mats throughout the site; preserve equipment proportions. */
.cap img,.pcard .thumb img,.side-card img,.gallery-card img{display:block;width:100%;height:auto;aspect-ratio:auto;background:transparent}
.pcard .thumb{aspect-ratio:auto;background:transparent}
.industry-photo{width:min(260px,100%);height:auto;aspect-ratio:5 / 4;padding:0;border:0;border-radius:12px;background:transparent;box-shadow:none;overflow:hidden}
.industry-photo::before{display:none}
.industry-photo img{display:block;width:100%;height:100%;object-fit:cover}
/* The supplied square portraits include narrow white side borders in the file. */
.member-photo{overflow:hidden;width:100%}
.member .member-photo img{display:block;width:125%;max-width:none;height:auto;aspect-ratio:auto;margin-left:-12.5%;object-fit:contain}
.logo-tile,.client-logo-grid .logo-tile{padding:0;min-height:0;background:transparent;overflow:hidden;align-self:center}
.logo-tile img{display:block;width:100%;height:auto;max-height:none;max-width:none}

/* Consistent category imagery and compact, aligned product navigation. */
.product-catalog-intro{display:flex;justify-content:space-between;align-items:center;gap:24px}
.product-catalog-intro h2{margin:8px 0 0;font-size:clamp(26px,3vw,36px)}
.product-catalog{gap:28px}
.product-catalog .pcard .thumb{aspect-ratio:5 / 4;flex:none;position:relative}
.product-catalog .pcard .thumb img{width:100%;height:100%;object-fit:cover;object-position:center}
.product-catalog .product-category-fabrication-services .thumb img{width:110%;max-width:none;object-position:center 40%}
.product-catalog .pc-body{padding:24px}
@media(max-width:600px){.product-catalog-intro{align-items:flex-start;flex-direction:column}.product-catalog{gap:24px}.product-catalog .pc-body{padding:20px}}

/* One product image ratio throughout listings, details, related items and gallery. */
.pcard .thumb{aspect-ratio:5 / 4;flex:none}
.pcard .thumb img{display:block;width:100%;height:100%;aspect-ratio:5 / 4;object-fit:cover;object-position:center}
.cap img,.side-card img,.gallery-card img{display:block;width:100%;height:auto;aspect-ratio:5 / 4;object-fit:cover;object-position:center}

/* Full gallery photographs over a soft image backdrop: no cover crop or added white mat. */
.full-photo{position:relative;display:block;aspect-ratio:5 / 4;overflow:hidden;isolation:isolate;background:var(--panel)}
.full-photo::before{content:"";position:absolute;inset:-20px;background-image:var(--photo);background-size:cover;background-position:center;filter:blur(18px) brightness(.6);z-index:-1}
.gallery-card .full-photo img,.pcard .full-photo img{display:block;width:100%;height:100%;aspect-ratio:5 / 4;object-fit:contain;background:transparent}
.gallery-viewer{width:min(1200px,96vw);max-width:96vw;max-height:96dvh;padding:16px;margin:auto;background:var(--panel);border:1px solid var(--line);border-radius:14px;color:var(--text)}
.gallery-viewer::backdrop{background:rgba(0,0,0,.9)}
body.gallery-viewer-open{overflow:hidden}
.gallery-viewer-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px}
.gallery-viewer button{width:44px;height:44px;flex:none;background:var(--bg);border:1px solid var(--line);border-radius:50%;color:var(--text);font-size:25px;cursor:pointer}
.gallery-viewer button:focus-visible,[data-gallery-image]:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.gallery-viewer-stage{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:12px 0;touch-action:pan-y}
.gallery-viewer-image{display:block;width:calc(100% - 112px);height:calc(96dvh - 210px);max-height:720px;object-fit:contain}
.gallery-viewer-caption{text-align:center;overflow-wrap:anywhere}
.gallery-viewer-caption span,.gallery-viewer-count{font-size:13px;color:var(--muted)}
.gallery-viewer-caption h2{font-size:20px;line-height:1.4;margin:6px 0 0}
@media(max-width:600px){.gallery-viewer{padding:10px}.gallery-viewer-stage{gap:5px}.gallery-viewer-stage button{width:34px;height:44px}.gallery-viewer-image{width:calc(100% - 78px);height:calc(96dvh - 220px)}.gallery-viewer-caption h2{font-size:17px}}

/* Client and authority marks share equal square tiles, independent of logo proportions. */
.client-logo-grid .logo-tile{box-sizing:border-box;width:100%;height:auto;min-height:0;aspect-ratio:1 / 1;padding:16px;border:1px solid #e2e8ee;border-radius:16px;background:#fff;display:flex;align-items:center;justify-content:center;align-self:stretch}
.client-logo-grid .logo-tile img{display:block;width:100%;height:100%;max-width:100%;max-height:100%;object-fit:contain;object-position:center}
@media(max-width:600px){.client-logo-grid .logo-tile{padding:14px;border-radius:14px}}