:root{
  --navy:#0A1F44;
  --steel:#3B6FAB;
  --steel-light:#C9D6E8;
  --ink:#22304A;
  --gray:#5A6B85;
  --bg:#FFFFFF;
  --bg-soft:#F6F8FB;
  --hairline:#E3E9F2;
  --bar:linear-gradient(90deg,#1E3A6E 0%,#3B6FAB 45%,#9FBEE3 100%);
  --glow:radial-gradient(ellipse 70% 55% at 85% 0%,rgba(59,111,171,0.11) 0%,transparent 65%);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',-apple-system,sans-serif;
  color:var(--ink);
  background:
    var(--glow),
    radial-gradient(ellipse 50% 40% at 0% 100%,rgba(59,111,171,0.05) 0%,transparent 60%),
    var(--bg);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--steel-light)}

/* ---------- Typography ---------- */
h1,h2,h3,.wordmark,.eyebrow{font-family:'Archivo',sans-serif}
h1{font-weight:300;font-size:clamp(2rem,5vw,3.4rem);line-height:1.18;color:var(--navy);letter-spacing:-0.01em}
h2{font-weight:400;font-size:clamp(1.5rem,3.2vw,2.2rem);line-height:1.25;color:var(--navy)}
h3{font-weight:500;font-size:1.08rem;color:var(--navy);letter-spacing:0.02em}
p{color:var(--gray);font-weight:400}
.lead{font-size:1.12rem;line-height:1.7}
.math{font-family:'STIX Two Text',serif;font-style:italic;color:var(--steel)}
.eyebrow{
  display:block;font-size:0.72rem;font-weight:500;letter-spacing:0.28em;
  text-transform:uppercase;color:var(--steel);margin-bottom:1.1rem;
}

/* ---------- Signature bar (echo of the logo) ---------- */
.bar{height:3px;width:64px;background:var(--bar);border-radius:2px;margin:1.6rem 0}
.bar.center{margin-left:auto;margin-right:auto}

/* ---------- Layout ---------- */
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
section{padding:96px 0}
@media(max-width:720px){section{padding:64px 0}}

/* ---------- Nav ---------- */
nav{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,0.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--hairline);
  transition:box-shadow .25s ease;
}
nav.scrolled{box-shadow:0 4px 24px rgba(10,31,68,0.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:48px}
.wordmark{
  font-weight:400;font-size:1.05rem;letter-spacing:0.42em;color:var(--navy);
  text-decoration:none;display:flex;align-items:center;gap:12px;
}
.logo-mark{display:inline-block;width:30px;aspect-ratio:320/340;background:url(../images/logo-mark.png) no-repeat center/contain;flex-shrink:0}
.logo-word{display:inline-block;height:14px;aspect-ratio:514/72;background:url(../images/logo-word.png) no-repeat center/contain}
.logo-techins{display:inline-block;height:36px;aspect-ratio:420/97;background:url(../images/logo-techins.png) no-repeat center/contain}
.nav-links{display:flex;gap:22px;align-items:center}
.nav-links a{
  text-decoration:none;color:var(--gray);font-size:0.84rem;font-weight:500;
  letter-spacing:0.02em;transition:color .2s;padding:4px 0;border-bottom:2px solid transparent;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--navy)}
.nav-links a.active{color:var(--navy);border-bottom-color:var(--steel)}
.burger{display:none;background:none;border:none;cursor:pointer;padding:8px}
.burger span{display:block;width:22px;height:2px;background:var(--navy);margin:5px 0;transition:.25s}
@media(max-width:840px){
  .nav-links{
    display:none;position:absolute;top:68px;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;border-bottom:1px solid var(--hairline);padding:8px 0;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:14px 24px;width:100%;border-bottom:none}
  .burger{display:block}
}

/* ---------- Hero ---------- */
.hero{
  padding:120px 0 90px;position:relative;overflow:hidden;
  background:
    linear-gradient(180deg,var(--bg-soft) 0%,var(--bg) 100%);
}
@media(max-width:720px){.hero{padding:72px 0 56px}}
.hero::before{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:.45;
  background-image:
    linear-gradient(var(--hairline) 1px,transparent 1px),
    linear-gradient(90deg,var(--hairline) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000 20%,transparent 75%);
}
.hero-ring,.hero-ring-2{
  position:absolute;border-radius:50%;pointer-events:none;
  animation:ringDrift 18s ease-in-out infinite;
}
.hero-ring{
  right:-140px;top:-140px;width:460px;height:460px;
  border:1.5px solid var(--steel-light);opacity:.55;
}
.hero-ring::after{
  content:'';position:absolute;inset:60px;border:1px solid var(--hairline);border-radius:50%;
}
.hero-ring-2{
  right:40px;top:20px;width:220px;height:220px;
  border:1px solid var(--steel-light);opacity:.35;
  animation-delay:-6s;animation-duration:22s;
}
.hero .wrap{position:relative;z-index:1}
.hero .wrap > *{
  animation:fadeUp .7s ease backwards;
}
.hero .wrap > *:nth-child(1){animation-delay:.08s}
.hero .wrap > *:nth-child(2){animation-delay:.18s}
.hero .wrap > *:nth-child(3){animation-delay:.28s}
.hero .wrap > *:nth-child(4){animation-delay:.38s}
.hero .lead{max-width:560px;margin-top:1.2rem}

/* Inner-page header band */
main:not(:has(.hero)) > section:first-of-type{
  background:linear-gradient(180deg,var(--bg-soft) 0%,transparent 100%);
  border-bottom:1px solid var(--hairline);
}

/* ---------- Two pillars ---------- */
.pillars{
  display:grid;grid-template-columns:1fr 1px 1fr;gap:0;margin-top:72px;
  border:1px solid var(--hairline);background:var(--bg);
  box-shadow:0 12px 40px rgba(10,31,68,0.04);
}
.pillars .divider{background:var(--hairline)}
.pillar{
  padding:52px 48px;transition:background .3s,transform .3s,box-shadow .3s;
  position:relative;overflow:hidden;
}
.pillar::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--bar);transform:scaleX(0);transform-origin:left;
  transition:transform .35s ease;
}
.pillar:hover{
  background:var(--bg-soft);transform:translateY(-3px);
  box-shadow:0 16px 40px rgba(10,31,68,0.07);
}
.pillar:hover::before{transform:scaleX(1)}
.pillar .roman{
  font-family:'STIX Two Text',serif;font-size:2.1rem;color:var(--steel-light);
  line-height:1;margin-bottom:1.4rem;display:block;
}
.pillar h2{font-size:1.45rem;margin-bottom:.8rem}
.pillar p{font-size:.98rem;margin-bottom:1.6rem}
.pillar a{font-size:.9rem}
@media(max-width:840px){
  .pillars{grid-template-columns:1fr}
  .pillars .divider{height:1px;width:100%}
  .pillar{padding:40px 28px}
}

/* ---------- Links & buttons ---------- */
.link{
  color:var(--steel);text-decoration:none;font-weight:500;letter-spacing:.03em;
  border-bottom:1px solid var(--steel-light);padding-bottom:2px;
  transition:border-color .2s,color .2s;
}
.link:hover{border-bottom-color:var(--steel);color:var(--navy)}
.btn{
  display:inline-block;background:var(--navy);color:#fff;text-decoration:none;
  font-family:'Archivo',sans-serif;font-weight:500;font-size:.88rem;letter-spacing:.08em;
  padding:14px 34px;transition:background .2s,transform .2s,box-shadow .2s;
}
.btn:hover{background:#132c5c;transform:translateY(-1px);box-shadow:0 6px 20px rgba(10,31,68,0.18)}
.btn.ghost{background:transparent;color:var(--navy);border:1px solid var(--navy);box-shadow:none}
.btn.ghost:hover{background:var(--bg-soft);transform:translateY(-1px);box-shadow:0 4px 16px rgba(10,31,68,0.06)}

/* ---------- Philosophy strip ---------- */
.philosophy{
  background:
    radial-gradient(circle at 15% 50%,rgba(59,111,171,0.18) 0%,transparent 45%),
    radial-gradient(circle at 85% 50%,rgba(59,111,171,0.12) 0%,transparent 45%),
    var(--navy);
  color:#fff;text-align:center;position:relative;overflow:hidden;
}
.philosophy::before{
  content:'∀ ∫ ∑';position:absolute;inset:0;pointer-events:none;
  font-family:'STIX Two Text',serif;font-size:clamp(6rem,18vw,11rem);
  color:rgba(255,255,255,0.025);letter-spacing:.2em;
  display:flex;align-items:center;justify-content:center;
}
.philosophy .wrap{position:relative;z-index:1}
.philosophy .math-line{
  font-family:'STIX Two Text',serif;font-style:italic;font-size:1.15rem;
  color:var(--steel-light);margin-bottom:2rem;letter-spacing:.02em;
}
.philosophy h2{color:#fff;max-width:760px;margin:0 auto 1.4rem;font-weight:300}
.philosophy p{color:#AFC2DE;max-width:640px;margin:0 auto;font-size:1.02rem}

/* ---------- Generic grid ---------- */
.grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:1px;
  background:var(--hairline);border:1px solid var(--hairline);margin-top:3rem;
  box-shadow:0 8px 32px rgba(10,31,68,0.03);
}
.cell{
  background:var(--bg);padding:38px 34px;
  transition:background .25s,transform .25s;
}
.cell:hover{background:var(--bg-soft);transform:translateY(-2px)}
.cell h3{margin-bottom:.6rem}
.cell p{font-size:.95rem}
.cell .glyph{
  font-family:'STIX Two Text',serif;color:var(--steel);font-size:1.3rem;
  margin-bottom:1rem;display:block;transition:color .25s,transform .25s;
}
.cell:hover .glyph{color:var(--navy);transform:scale(1.08)}

/* ---------- Split section ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start}
@media(max-width:840px){.split{grid-template-columns:1fr;gap:40px}}

/* ---------- Lists ---------- */
.deflist{margin-top:2.4rem;border-top:1px solid var(--hairline)}
.deflist .row{
  display:grid;grid-template-columns:220px 1fr;gap:32px;
  padding:26px 0;border-bottom:1px solid var(--hairline);
}
.deflist .row h3{padding-top:2px}
.deflist .row p{font-size:.96rem}
@media(max-width:720px){.deflist .row{grid-template-columns:1fr;gap:8px}}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--hairline);padding:56px 0 44px;background:var(--bg-soft)}
.foot{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;align-items:flex-start}
.foot .wordmark{font-size:.92rem}
.foot-meta{font-size:.8rem;color:var(--gray);line-height:1.9}
.foot-partner{display:flex;align-items:center}
.foot-links{display:flex;flex-direction:column;gap:8px}
.foot-links a{color:var(--gray);text-decoration:none;font-size:.85rem}
.foot-links a:hover{color:var(--navy)}

/* ---------- Flow (lifecycle steps) ---------- */
.flow{margin-top:3rem;border-top:1px solid var(--hairline)}
.flow .step{
  display:grid;grid-template-columns:88px 240px 1fr;gap:28px;
  padding:30px 0;border-bottom:1px solid var(--hairline);align-items:start;
  transition:padding-left .25s ease;
}
.flow .step:hover{padding-left:8px}
.flow .num{
  font-family:'STIX Two Text',serif;font-style:italic;font-size:1.7rem;
  color:var(--steel-light);line-height:1.2;
}
.flow .step h3{padding-top:4px}
.flow .step p{font-size:.96rem}
.flow .step .tag{
  display:inline-block;font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--steel);margin-top:.5rem;font-family:'Archivo',sans-serif;font-weight:500;
}
@media(max-width:840px){
  .flow .step{grid-template-columns:56px 1fr;gap:14px}
  .flow .step p{grid-column:2}
}

/* ---------- Principle strip ---------- */
.principle{
  border-left:3px solid var(--steel);background:var(--bg-soft);
  padding:28px 34px;margin-top:3rem;
  box-shadow:0 4px 24px rgba(10,31,68,0.04);
}
.principle p{color:var(--ink);font-size:1.02rem}
.principle strong{color:var(--navy);font-weight:600}

/* ---------- Legal pages ---------- */
.legal{max-width:760px}
.legal .updated{font-size:.85rem;color:var(--gray);margin:1.4rem 0 2.2rem}
.legal h2{font-size:1.12rem;margin:2.2rem 0 .6rem}
.legal p,.legal li{color:var(--gray);font-size:.95rem;line-height:1.7}
.legal p{margin-bottom:.9rem}
.legal ul{padding-left:1.3rem;margin-bottom:1rem}
.legal li{margin-bottom:.45rem}
.legal table{width:100%;border-collapse:collapse;margin:1rem 0 1.4rem;font-size:.88rem}
.legal th,.legal td{border:1px solid var(--hairline);padding:10px 14px;text-align:left;color:var(--gray);vertical-align:top}
.legal th{color:var(--navy);font-family:'Archivo',sans-serif;font-weight:500;background:var(--bg-soft)}
@media(max-width:600px){.legal table{font-size:.8rem}.legal th,.legal td{padding:8px 8px}}

/* ---------- Footer link columns ---------- */
.foot-links .head{
  font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--navy);
  font-family:'Archivo',sans-serif;font-weight:500;margin-bottom:6px;
}
.foot-links a{cursor:pointer}

/* ---------- Cookie banner & settings ---------- */
.cookiebar{
  position:fixed;bottom:0;left:0;right:0;z-index:100;background:var(--navy);
  padding:20px 0;display:none;box-shadow:0 -4px 24px rgba(10,31,68,.18);
}
.cookiebar.show{display:block}
.cookiebar .inner{display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cookiebar p{color:#C9D6E8;font-size:.87rem;margin:0;max-width:620px;line-height:1.55}
.cookiebar p a{color:#fff;text-decoration:underline;text-underline-offset:3px}
.cookiebar .btns{display:flex;gap:10px;flex-wrap:wrap}
.cbtn{
  font-family:'Archivo',sans-serif;font-size:.82rem;letter-spacing:.04em;
  padding:10px 20px;cursor:pointer;border:1px solid #fff;background:#fff;color:var(--navy);
}
.cbtn.ghost{background:transparent;color:#fff}
.cbtn:hover{opacity:.88}
.cookie-modal{
  position:fixed;inset:0;background:rgba(10,31,68,.55);z-index:101;
  display:none;align-items:center;justify-content:center;padding:20px;
}
.cookie-modal.show{display:flex}
.cookie-card{background:#fff;max-width:540px;width:100%;padding:36px;max-height:88vh;overflow:auto}
.cookie-card h3{margin-bottom:.4rem}
.cookie-card>p{font-size:.9rem;margin-bottom:1.4rem}
.cookie-row{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;padding:16px 0;border-top:1px solid var(--hairline)}
.cookie-row div p{font-size:.85rem;margin-top:2px}
.cookie-row label{font-family:'Archivo',sans-serif;font-weight:500;color:var(--navy);font-size:.95rem}
.cookie-row input{width:18px;height:18px;accent-color:var(--steel);margin-top:3px;flex-shrink:0}
.cookie-card .actions{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap}
.cookie-card .cbtn{border-color:var(--navy)}
.cookie-card .cbtn.ghost{color:var(--navy)}

/* ---------- Contact ---------- */
.contact-card{border:1px solid var(--hairline);padding:44px;margin-top:2.5rem}
.contact-card .row{display:grid;grid-template-columns:160px 1fr;gap:20px;padding:14px 0;border-bottom:1px solid var(--hairline);font-size:.95rem}
.contact-card .row:last-child{border-bottom:none}
.contact-card .row span:first-child{color:var(--gray);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;padding-top:2px}
.contact-card .row span:last-child{color:var(--navy);font-weight:500}
@media(max-width:600px){.contact-card{padding:28px 22px}.contact-card .row{grid-template-columns:1fr;gap:4px}}

/* ---------- Nav CTA & language switcher ---------- */
.nav-links a.nav-cta{padding:11px 24px;font-size:.78rem;color:#fff;white-space:nowrap;margin-left:6px;border-bottom:none}
.nav-links a.nav-cta:hover{color:#fff;transform:none}
.lang-switch{display:flex;gap:2px;margin-left:2px;border-left:1px solid var(--hairline);padding-left:10px}
.lang-switch a{
  font-family:'Archivo',sans-serif;font-size:.72rem;font-weight:500;letter-spacing:.08em;
  color:var(--gray);text-decoration:none;padding:4px 6px;border-bottom:none;
}
.lang-switch a:hover{color:var(--navy)}
.lang-switch a.active{color:var(--steel);font-weight:600}
@media(max-width:1080px){
  .nav-links{
    display:none;position:absolute;top:68px;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;border-bottom:1px solid var(--hairline);padding:8px 0;
    align-items:stretch;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:14px 24px;width:100%;border-bottom:none}
  .nav-links a.nav-cta{margin:10px 24px;width:auto;text-align:center}
  .lang-switch{margin:6px 24px 10px;border-left:none;padding-left:0}
  .lang-switch a{padding:6px 10px;width:auto}
  .burger{display:block}
}

/* ---------- Pillars as links ---------- */
a.pillar{display:block;text-decoration:none;color:inherit}
a.cell{display:block;text-decoration:none;color:inherit}

/* ---------- Highlighted capability row ---------- */
.deflist .row.highlight{
  border-left:3px solid var(--steel);
  padding-left:22px;
  background:linear-gradient(90deg,var(--bg-soft) 0%,transparent 70%);
}
@media(max-width:720px){.deflist .row.highlight{padding-left:16px}}

/* ---------- Product blocks ---------- */
.product{
  display:grid;grid-template-columns:110px 1fr;gap:34px;align-items:start;
  border:1px solid var(--hairline);padding:52px 48px;background:var(--bg);
  box-shadow:0 8px 32px rgba(10,31,68,0.03);
}
.product .pnum{
  font-family:'STIX Two Text',serif;font-style:italic;font-size:2.6rem;
  color:var(--steel-light);line-height:1;
}
.product h2{font-size:1.5rem;margin-bottom:.4rem}
.product .psub{color:var(--navy);font-weight:500;margin-bottom:1rem}
.product p{font-size:.98rem}
.product .principle{margin-top:1.8rem}
@media(max-width:720px){
  .product{grid-template-columns:1fr;gap:12px;padding:34px 24px}
}

/* ---------- Checklist (two-column bullets) ---------- */
.checklist{
  list-style:none;padding:0;margin:1.6rem 0 0;
  display:grid;grid-template-columns:1fr 1fr;gap:10px 32px;
}
.checklist li{
  color:var(--gray);font-size:.93rem;padding-left:24px;position:relative;line-height:1.5;
}
.checklist li::before{
  content:'⊢';position:absolute;left:0;color:var(--steel);
  font-family:'STIX Two Text',serif;
}
@media(max-width:720px){.checklist{grid-template-columns:1fr}}

/* ---------- Case study ---------- */
.case{max-width:760px}
.case-block{padding:34px 0;border-bottom:1px solid var(--hairline)}
.case-block:last-child{border-bottom:none}
.case-block h2{font-size:1.25rem;margin-bottom:.8rem}
.case-block p{font-size:.98rem}

/* ---------- Team grid ---------- */
.team-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1px;
  background:var(--hairline);border:1px solid var(--hairline);margin-top:3rem;
  box-shadow:0 8px 32px rgba(10,31,68,0.03);
}
.member{background:var(--bg);padding:34px 30px;transition:background .25s}
.member:hover{background:var(--bg-soft)}
.member h3{margin-bottom:2px}
.member .role{
  display:block;font-family:'Archivo',sans-serif;font-size:.76rem;font-weight:500;
  letter-spacing:.1em;text-transform:uppercase;color:var(--steel);margin-bottom:.8rem;
}
.member p{font-size:.9rem;line-height:1.6}

/* ---------- Contact form ---------- */
.contact-split{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:start}
@media(max-width:900px){.contact-split{grid-template-columns:1fr;gap:36px}}
.cform label{
  display:block;font-family:'Archivo',sans-serif;font-size:.8rem;font-weight:500;
  letter-spacing:.06em;color:var(--navy);margin-bottom:18px;
}
.cform input,.cform select,.cform textarea{
  display:block;width:100%;margin-top:6px;padding:12px 14px;
  border:1px solid var(--hairline);background:var(--bg);color:var(--ink);
  font-family:'Inter',sans-serif;font-size:.95rem;border-radius:0;
  transition:border-color .2s;
}
.cform input:focus,.cform select:focus,.cform textarea:focus{
  outline:none;border-color:var(--steel);
}
.cform .frow2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:600px){.cform .frow2{grid-template-columns:1fr}}
.cform button{margin-top:6px;cursor:pointer;border:none}

/* ---------- Light button on dark strip ---------- */
.btn.light{background:#fff;color:var(--navy)}
.btn.light:hover{background:var(--steel-light)}

/* ---------- Expand note ---------- */
.expand-note{
  border-top:1px solid var(--hairline);padding-top:56px;
}

/* ---------- Motion & reveal ---------- */
@keyframes fadeUp{
  from{opacity:0;transform:translateY(14px)}
  to{opacity:1;transform:none}
}
@keyframes ringDrift{
  0%,100%{transform:translate(0,0) rotate(0deg)}
  50%{transform:translate(-12px,8px) rotate(2deg)}
}
.reveal{
  opacity:0;transform:translateY(20px);
  transition:opacity .6s ease,transform .6s ease;
}
.reveal.visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .hero .wrap > *,.reveal,.hero-ring,.hero-ring-2{animation:none!important;transition:none!important;opacity:1!important;transform:none!important}
  .flow .step:hover{padding-left:0}
  .pillar:hover,.cell:hover,.btn:hover{transform:none;box-shadow:none}
}