/* ================= DESIGN TOKENS ================= */
:root{
  --navy-950:#06141F;
  --navy-900:#0A1F33;
  --navy-800:#10293F;
  --navy-700:#1A3A55;
  --steel:#4890A8;
  --steel-light:#8FC4D6;
  --steel-faint:rgba(72,144,168,.16);
  --red:#B01E1E;
  --red-deep:#8E1717;
  --ink:#152230;
  --ink-soft:#44566A;
  --paper:#FFFFFF;
  --paper-tint:#F4F7F9;
  --line:rgba(10,31,51,.12);
  --line-onDark:rgba(255,255,255,.14);
  --display:'Archivo',system-ui,sans-serif;
  --serif:'Source Serif 4',Georgia,serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --max:1240px;
  --pad:clamp(20px,4.5vw,56px);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--serif);
  font-size:17px;line-height:1.65;
  color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none}
::selection{background:var(--steel);color:#fff}

h1,h2,h3,h4{font-family:var(--display);line-height:1.12;letter-spacing:-.015em;color:var(--navy-900);font-weight:600}
.on-dark h1,.on-dark h2,.on-dark h3,.on-dark h4{color:#fff}

/* ================= CHART ANNOTATION SYSTEM (signature) ================= */
.eyebrow{
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--steel);
  display:flex;align-items:center;gap:14px;margin-bottom:18px;
}
.eyebrow::before{content:'';width:34px;height:1px;background:var(--steel)}
.eyebrow .coord{color:var(--ink-soft);letter-spacing:.08em}
.on-dark .eyebrow{color:var(--steel-light)}
.on-dark .eyebrow .coord{color:rgba(255,255,255,.5)}

.chart-grid{
  background-image:
    linear-gradient(rgba(143,196,214,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(143,196,214,.07) 1px,transparent 1px);
  background-size:72px 72px;
}

/* ================= LAYOUT PRIMITIVES ================= */
.wrap{max-width:var(--max);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.section{padding:clamp(64px,9vw,120px) 0}
.section-tint{background:var(--paper-tint)}
.section-dark{background:var(--navy-900);color:rgba(255,255,255,.85)}
.section-head{max-width:720px;margin-bottom:clamp(36px,5vw,64px)}
.section-head h2{font-size:clamp(28px,3.6vw,44px);margin-bottom:14px}
.section-head p{font-size:18px;color:var(--ink-soft)}
.section-dark .section-head p{color:rgba(255,255,255,.72)}

/* ================= HEADER ================= */
header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  background:rgba(255,255,255,.96);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{max-width:var(--max);margin:0 auto;padding:0 var(--pad);height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center}
.brand img{height:46px;width:auto;display:block}
nav.main-nav{display:flex;gap:2px}
nav.main-nav a{
  font-family:var(--display);font-size:13.5px;font-weight:500;letter-spacing:.05em;
  color:var(--ink-soft);padding:9px 12px;border-radius:2px;
  transition:color .2s,background .2s;text-transform:uppercase;
}
nav.main-nav a:hover{color:var(--navy-900);background:var(--paper-tint)}
nav.main-nav a.active{color:var(--navy-900);box-shadow:inset 0 -2px 0 var(--red)}
.nav-cta{
  font-family:var(--display);font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  background:var(--red);color:#fff;padding:11px 20px;border-radius:2px;transition:background .2s;white-space:nowrap;
}
.nav-cta:hover{background:var(--red-deep)}
.burger{display:none;flex-direction:column;gap:5px;padding:8px}
.burger span{width:24px;height:2px;background:var(--navy-900);transition:.25s}

/* ================= BUTTONS ================= */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--display);font-weight:600;font-size:14px;letter-spacing:.05em;text-transform:uppercase;
  padding:15px 28px;border-radius:2px;transition:.2s;
}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-deep);transform:translateY(-1px)}
.btn-ghost{border:1px solid rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn-navy{border:1px solid var(--navy-900);color:var(--navy-900)}
.btn-navy:hover{background:var(--navy-900);color:#fff}
.btn .arr{font-family:var(--mono);font-weight:400}

/* ================= PAGE ROUTER ================= */
.page{display:block}

/* ================= HERO ================= */
.hero{
  min-height:92vh;display:flex;align-items:center;
  background:linear-gradient(168deg,var(--navy-950) 0%,var(--navy-900) 55%,#0D2A42 100%);
  position:relative;overflow:hidden;padding:150px 0 90px;
}
.hero .waterline{
  position:absolute;left:0;right:0;bottom:23%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(143,196,214,.5) 30%,rgba(143,196,214,.5) 70%,transparent);
}
.hero .waterline::after{
  content:'WATERLINE — DATUM 0.0 M';position:absolute;right:var(--pad);top:8px;
  font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:rgba(143,196,214,.45);
}
.hero-inner{position:relative;z-index:2;max-width:var(--max);margin:0 auto;padding:0 var(--pad);width:100%}
.hero h1{
  font-size:clamp(34px,5.2vw,66px);font-weight:600;color:#fff;
  max-width:17ch;letter-spacing:-.02em;margin:22px 0 26px;
}
.hero h1 em{font-style:normal;color:var(--steel-light)}
.hero p.sub{font-size:clamp(17px,1.6vw,21px);color:rgba(255,255,255,.74);max-width:58ch;margin-bottom:42px}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap}
.hero-meta{
  margin-top:72px;display:flex;gap:clamp(24px,5vw,72px);flex-wrap:wrap;
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:rgba(143,196,214,.6);
  border-top:1px solid var(--line-onDark);padding-top:22px;
}

/* ================= CARDS / GRIDS ================= */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line)}
.cell{background:var(--paper);padding:36px 32px}
.section-tint .cell{background:var(--paper-tint)}
.cell h3{font-size:19px;margin:16px 0 10px}
.cell p{font-size:15.5px;color:var(--ink-soft)}
.cell .idx{font-family:var(--mono);font-size:12px;color:var(--steel);letter-spacing:.12em}

/* stat band (draft-mark figures) */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-onDark)}
.stat{background:var(--navy-900);padding:38px 30px;position:relative}
.stat::before{content:'';position:absolute;left:30px;top:30px;width:18px;height:3px;background:var(--red)}
.stat b{
  font-family:var(--display);font-weight:700;font-size:clamp(34px,3.4vw,48px);
  color:#fff;display:block;letter-spacing:-.02em;margin-top:18px;
}
.stat b small{font-size:.5em;color:var(--steel-light);font-weight:600}
.stat span{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.55);display:block;margin-top:8px}

/* service rows */
.svc-row{
  border-top:1px solid var(--line);padding:0;
}
.svc-row:last-child{border-bottom:1px solid var(--line)}
.svc-head{
  width:100%;display:grid;grid-template-columns:84px 1fr auto;align-items:center;gap:20px;
  padding:26px 6px;text-align:left;transition:background .2s;
}
.svc-head:hover{background:var(--paper-tint)}
.svc-head .num{font-family:var(--mono);font-size:13px;color:var(--steel);letter-spacing:.1em}
.svc-head h3{font-size:clamp(18px,2vw,23px);font-weight:600}
.svc-head .tog{
  font-family:var(--mono);font-size:20px;color:var(--ink-soft);
  width:38px;height:38px;border:1px solid var(--line);border-radius:50%;
  display:flex;align-items:center;justify-content:center;transition:.25s;
}
.svc-row.open .svc-head .tog{transform:rotate(45deg);border-color:var(--red);color:var(--red)}
.svc-body{max-height:0;overflow:hidden;transition:max-height .4s ease}
.svc-body-inner{
  display:grid;grid-template-columns:repeat(4,1fr);gap:32px;
  padding:8px 6px 40px 104px;
}
.svc-body h4{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--steel);font-weight:500;margin-bottom:12px}
.svc-body p,.svc-body li{font-size:14.5px;color:var(--ink-soft);line-height:1.6}
.svc-body ul{list-style:none}
.svc-body li{padding:5px 0 5px 16px;position:relative}
.svc-body li::before{content:'—';position:absolute;left:0;color:var(--steel)}

/* case studies */
.case{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(28px,4vw,64px);
  border:1px solid var(--line);padding:clamp(28px,4vw,52px);margin-bottom:28px;background:var(--paper);
}
.case h3{font-size:clamp(20px,2.4vw,27px);margin:14px 0 22px}
.case .blk{margin-bottom:20px}
.case .blk h4{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--steel);font-weight:500;margin-bottom:8px}
.case .blk p{font-size:15.5px;color:var(--ink-soft)}
.kpis{border-left:1px solid var(--line);padding-left:clamp(24px,3vw,48px);display:flex;flex-direction:column;justify-content:center;gap:26px}
.kpi b{font-family:var(--display);font-size:clamp(28px,3vw,40px);font-weight:700;color:var(--navy-900);display:block;letter-spacing:-.02em}
.kpi b i{font-style:normal;color:var(--red);font-size:.62em;vertical-align:.22em;margin-right:4px}
.kpi span{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}

/* insights */
.insights-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line)}
.insight{background:var(--paper);padding:30px 28px;display:flex;flex-direction:column;gap:14px;min-height:210px;transition:background .2s}
.insight:hover{background:var(--paper-tint)}
.insight .tag{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--red)}
.insight h3{font-size:17.5px;line-height:1.35;font-weight:600;flex:1}
.insight .meta{font-family:var(--mono);font-size:11.5px;color:var(--ink-soft);letter-spacing:.06em}

/* values + about */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,80px);align-items:start}
.lede{font-size:clamp(19px,2vw,23px);line-height:1.55;color:var(--ink)}
.lede strong{color:var(--navy-900)}
.body-copy p{margin-bottom:18px;color:var(--ink-soft)}
.rule-list{list-style:none}
.rule-list li{border-top:1px solid var(--line);padding:20px 0;display:grid;grid-template-columns:56px 1fr;gap:18px}
.rule-list li:last-child{border-bottom:1px solid var(--line)}
.rule-list .k{font-family:var(--mono);font-size:12px;color:var(--steel);letter-spacing:.1em;padding-top:3px}
.rule-list h4{font-size:16.5px;margin-bottom:5px}
.rule-list p{font-size:14.5px;color:var(--ink-soft)}

/* industries */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-onDark)}
.ind{background:var(--navy-900);padding:40px 34px;min-height:300px;display:flex;flex-direction:column;position:relative;overflow:hidden;transition:background .25s}
.ind:hover{background:var(--navy-800)}
.ind .idx{font-family:var(--mono);font-size:12px;color:var(--steel-light);letter-spacing:.12em}
.ind h3{color:#fff;font-size:21px;margin:18px 0 12px}
.ind p{font-size:14.5px;color:rgba(255,255,255,.66);flex:1}
.ind .foot{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:rgba(143,196,214,.55);text-transform:uppercase;margin-top:22px}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,80px)}
.field{margin-bottom:22px}
.field label{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);display:block;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);background:var(--paper);
  padding:13px 14px;font:inherit;font-size:15.5px;color:var(--ink);border-radius:2px;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--steel);outline-offset:-1px}
.contact-card{border-top:1px solid var(--line);padding:22px 0;display:grid;grid-template-columns:130px 1fr;gap:16px}
.contact-card .k{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--steel);padding-top:3px}
.contact-card p{font-size:15.5px;color:var(--ink-soft)}
.contact-card a{color:var(--navy-900);border-bottom:1px solid var(--steel)}

/* page hero (inner pages) */
.page-hero{
  background:linear-gradient(160deg,var(--navy-950),var(--navy-900) 70%);
  padding:170px 0 76px;position:relative;overflow:hidden;
}
.page-hero h1{color:#fff;font-size:clamp(30px,4.4vw,54px);max-width:20ch;margin-top:18px}
.page-hero p{color:rgba(255,255,255,.72);max-width:60ch;margin-top:18px;font-size:18px}

/* CTA band */
.cta-band{background:var(--navy-900);position:relative;overflow:hidden}
.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;padding-top:clamp(48px,6vw,80px);padding-bottom:clamp(48px,6vw,80px)}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,38px);max-width:22ch}
.cta-band .red-tick{display:block;width:44px;height:4px;background:var(--red);margin-bottom:22px}

/* footer */
footer{background:var(--navy-950);color:rgba(255,255,255,.65);padding:70px 0 36px;border-top:1px solid var(--line-onDark)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:54px}
.foot-grid h4{font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--steel-light);font-weight:500;margin-bottom:18px}
.foot-grid a,.foot-grid p{display:block;font-size:14px;color:rgba(255,255,255,.62);padding:5px 0;font-family:var(--display)}
.foot-grid a:hover{color:#fff}
.foot-logo-card{background:#fff;border-radius:3px;padding:14px 18px;display:inline-block;margin-bottom:18px}
.foot-logo-card img{height:44px;width:auto}
.foot-bottom{border-top:1px solid var(--line-onDark);padding-top:26px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;color:rgba(255,255,255,.4)}

/* reveal on scroll */
.rv{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}
:focus-visible{outline:2px solid var(--steel);outline-offset:2px}

/* ================= RESPONSIVE ================= */
@media (max-width:1080px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .grid-3,.insights-grid,.ind-grid{grid-template-columns:repeat(2,1fr)}
  .svc-body-inner{grid-template-columns:repeat(2,1fr);padding-left:6px}
}
@media (max-width:880px){
  nav.main-nav{
    position:fixed;top:80px;left:0;right:0;
    height:calc(100vh - 80px);height:calc(100dvh - 80px);
    background:#fff;flex-direction:column;padding:28px var(--pad);
    transform:translateX(100%);transition:transform .3s;gap:6px;overflow:auto;
  }
  nav.main-nav.openNav{transform:none}
  nav.main-nav a{font-size:17px;padding:15px 10px;border-bottom:1px solid var(--line);color:var(--navy-900)}
  .burger{display:flex}
  .nav-cta{display:none}
  .two-col,.contact-grid,.case{grid-template-columns:1fr}
  .kpis{border-left:none;border-top:1px solid var(--line);padding:26px 0 0;flex-direction:row;flex-wrap:wrap;justify-content:flex-start;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
  #mv-grid{grid-template-columns:1fr !important}
  header{backdrop-filter:none;-webkit-backdrop-filter:none}
}
@media (max-width:600px){
  .grid-3,.grid-2,.insights-grid,.ind-grid,.stats,.svc-body-inner{grid-template-columns:1fr}
  .hero{min-height:auto}
}

/* ================= ILLUSTRATIONS ================= */
.glyph{width:42px;height:42px;color:var(--steel);display:block}
.cell .glyph{margin-bottom:16px}
.cell .glyph.ind-glyph,.ind .glyph.ind-glyph{width:68px;height:48px}
.ind .glyph{color:var(--steel-light);margin-bottom:18px}

.svc-glyph{width:36px;height:36px;color:var(--steel);display:block;justify-self:start}
.svc-head{grid-template-columns:84px 52px 1fr auto}

.hero-ship{
  position:absolute;right:2.5vw;bottom:21%;width:min(52vw,740px);
  color:rgba(143,196,214,.55);pointer-events:none;z-index:1;
  animation:bob 9s ease-in-out infinite;
}
.hero-ship svg{display:block;width:100%;height:auto}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}

.ring-mark{
  position:absolute;right:-90px;top:50%;width:400px;height:400px;
  transform:translateY(-50%) rotate(-18deg);
  color:rgba(143,196,214,.13);pointer-events:none;
}
.page-hero,.cta-band{position:relative}
.page-hero .wrap,.cta-band .wrap{position:relative;z-index:2}

.about-illus{margin-top:40px;max-width:330px;color:var(--steel)}
.about-illus svg{display:block;width:100%;height:auto}

.case{position:relative}
.case-glyph-wrap{position:absolute;top:26px;right:30px;pointer-events:none}
.case-glyph{width:64px;height:45px;color:rgba(72,144,168,.45);display:block}

.contact-illus-wrap{margin:6px 0 24px}
.contact-illus{width:108px;height:108px;color:var(--steel);display:block}

@media (max-width:1100px){
  .hero-ship{width:64vw;right:-6vw;opacity:.45}
}
@media (max-width:880px){
  .svc-head{grid-template-columns:48px 40px 1fr auto;gap:12px}
  .svc-head h3{justify-self:start;text-align:left}
  .ring-mark{width:300px;right:-120px}
  .case-glyph-wrap{display:none}
}
@media (max-width:700px){
  .hero-ship{display:none}
}
@media (prefers-reduced-motion:reduce){
  .hero-ship{animation:none}
}