:root{
  --paper:#f3f1ee;
  --paper-2:#ebe7e2;
  --white:#ffffff;
  --teal:#0e4f67;
  --teal-deep:#123f52;
  --taupe:#a48e80;
  --taupe-deep:#89756a;
  --text:#405156;
  --heading:#29434e;
  --muted:#6f7f86;
  --line:#d5d3cf;
  --red:#e22429;
  --shadow:0 18px 45px rgba(31,56,66,.10);
  --shadow-soft:0 10px 30px rgba(31,56,66,.08);
  --radius:24px;
  --radius-sm:16px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Source Sans 3",Arial,sans-serif;background:var(--paper);color:var(--text);line-height:1.65}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0 0 16px;font-family:"Cormorant Garamond",Georgia,serif;color:var(--heading);line-height:1.02;font-weight:500}
h1{font-size:clamp(3.2rem,7vw,6rem);letter-spacing:-.03em}
h2{font-size:clamp(2.5rem,4.5vw,4.2rem);letter-spacing:-.025em}
h3{font-size:2rem}
h4{font-size:1.25rem}
p{margin:0 0 16px;color:var(--text)}
strong{font-weight:700}
small{font-size:.9rem}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.section{padding:96px 0}
.section-sm{padding:54px 0}
.bg-white{background:var(--white)}
.bg-paper-2{background:var(--paper-2)}
.bg-dark{background:linear-gradient(160deg,#133f4d,#0a2f3e);color:#eef4f6}
.bg-dark h2,.bg-dark h3{color:#fff}
.bg-dark p,.bg-dark li{color:#d4e2e7}
.lead{font-size:1.18rem;color:var(--muted);max-width:760px}
.eyebrow{font-size:.95rem;letter-spacing:.22em;text-transform:uppercase;color:var(--taupe-deep);font-weight:700;margin-bottom:12px}
.section-head{max-width:860px;margin-bottom:42px}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto}
.section-head.center .lead{margin-left:auto;margin-right:auto}

.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(243,241,238,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(165,149,138,.18)}
.nav-wrap{width:min(1280px,calc(100% - 40px));height:88px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:14px;min-width:0}
.logo img{width:260px;max-width:46vw;height:auto}
.logo-tag{display:flex;flex-direction:column;gap:2px;font-size:.86rem;color:var(--muted)}
.logo-tag strong{font-size:.96rem;color:var(--taupe-deep);letter-spacing:.08em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:26px;font-size:1rem;font-weight:600;color:var(--heading)}
.main-nav a{position:relative}
.main-nav a:not(.btn):after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1px;background:var(--taupe-deep);transition:.25s}
.main-nav a:hover:after,.main-nav a.active:after{width:100%}
.menu-toggle{display:none;background:none;border:0;padding:8px}
.menu-toggle span{display:block;width:24px;height:2px;background:var(--heading);margin:5px 0}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 22px;border-radius:999px;border:1px solid transparent;font-size:1rem;font-weight:700;transition:.22s ease}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--teal);color:#fff;box-shadow:var(--shadow-soft)}
.btn-secondary{background:var(--taupe);color:#fff}
.btn-light{background:rgba(255,255,255,.9);color:var(--teal-deep)}
.btn-outline{border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline-dark{border-color:var(--taupe);color:var(--taupe-deep);background:transparent}
.nav-cta{min-height:42px;padding:0 18px}

.hero,.page-hero{position:relative;overflow:hidden;padding-top:88px}
.hero{min-height:100vh;background:linear-gradient(110deg,rgba(243,241,238,.92) 0%,rgba(243,241,238,.88) 45%,rgba(243,241,238,.55) 100%),url('img/planta-1-wide.jpg') center/cover no-repeat;display:flex;align-items:center}
.page-hero{min-height:76vh;background:linear-gradient(120deg,rgba(243,241,238,.95),rgba(243,241,238,.74)),url('img/planta-2-wide.jpg') center/cover no-repeat;display:flex;align-items:center}
.hero-inner{width:min(var(--max),calc(100% - 48px));margin:auto;padding:72px 0 92px;position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(360px,.85fr);gap:52px;align-items:center}
.hero-brand{max-width:560px;margin-bottom:20px}
.hero-kicker{font-size:1.08rem;color:var(--teal);font-weight:700;letter-spacing:.04em;margin-bottom:12px}
.hero p.lead{color:#576970;max-width:760px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-top:26px}
.hero-panel{background:rgba(255,255,255,.72);border:1px solid rgba(14,79,103,.16);backdrop-filter:blur(8px);border-radius:32px;padding:28px;box-shadow:var(--shadow)}
.hero-panel h3{font-size:2.15rem;color:var(--teal-deep)}
.hero-panel ul{padding-left:18px;margin:18px 0 0}
.hero-panel li{margin-bottom:8px;color:var(--text)}
.breadcrumb{font-size:.95rem;color:var(--muted);margin-bottom:10px}

.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:38px}
.stat-card{background:rgba(255,255,255,.82);border:1px solid rgba(165,149,138,.18);border-radius:22px;padding:18px 18px 16px;box-shadow:var(--shadow-soft)}
.stat-card strong{display:block;font-size:2rem;line-height:1;color:var(--teal);margin-bottom:8px}
.stat-card span{display:block;color:var(--muted);font-size:.98rem}

.brand-ecosystem{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.brand-card{background:var(--white);border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:var(--shadow-soft)}
.brand-card .mini-label{font-size:.85rem;letter-spacing:.18em;text-transform:uppercase;color:var(--taupe-deep);font-weight:700;margin-bottom:16px}
.brand-card img{height:52px;width:auto;object-fit:contain;margin-bottom:18px}
.brand-card img.logo-gbt{height:24px;width:auto}
.brand-card p{margin-bottom:0}

.split{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:54px;align-items:center}
.split.reverse{grid-template-columns:minmax(0,.94fr) minmax(0,1.06fr)}
.image-frame{background:var(--white);padding:18px;border-radius:34px;box-shadow:var(--shadow);border:1px solid rgba(165,149,138,.14)}
.image-frame img{border-radius:24px;width:100%;object-fit:cover}
.checks{list-style:none;padding:0;margin:24px 0 0}
.checks li{padding-left:28px;position:relative;margin-bottom:10px}
.checks li:before{content:"";position:absolute;left:0;top:.55em;width:12px;height:12px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(14,79,103,.12)}

.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--white);border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:var(--shadow-soft)}
.card h3{font-size:1.8rem;margin-bottom:10px;color:var(--teal-deep)}
.card p{margin-bottom:0}
.number{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;border:1px solid rgba(14,79,103,.22);color:var(--teal);font-size:1rem;font-weight:700;margin-bottom:18px;background:rgba(14,79,103,.04)}

.sector-card{text-align:center;padding-top:22px}
.sector-badge{width:126px;height:126px;border-radius:50%;margin:0 auto 20px;border:1.5px solid rgba(14,79,103,.28);display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#fff, #f4f6f7);box-shadow:0 22px 35px rgba(44,60,65,.12)}
.sector-badge span{width:102px;height:102px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.05rem;font-weight:700;color:var(--teal);border:1px solid rgba(164,142,128,.25);background:#fff;padding:14px;line-height:1.15}
.sector-card p{font-size:1rem;color:var(--muted)}

.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:26px;padding:24px}
.metric strong{display:block;font-size:2.4rem;line-height:1;margin-bottom:10px;color:#fff;font-family:"Cormorant Garamond",Georgia,serif}
.metric span{display:block;color:#dce8ec;font-size:1rem}
.metric.light{background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.metric.light strong{color:var(--teal)}
.metric.light span{color:var(--muted)}

.callout{background:var(--white);border:1px solid rgba(165,149,138,.2);border-left:4px solid var(--taupe);padding:18px 20px;border-radius:18px;color:var(--text)}
.compare{width:100%;border-collapse:separate;border-spacing:0;background:var(--white);border:1px solid var(--line);border-radius:26px;overflow:hidden;box-shadow:var(--shadow-soft)}
.compare th,.compare td{padding:18px 20px;text-align:left;border-bottom:1px solid var(--line)}
.compare th{background:#f7f5f2;color:var(--taupe-deep);font-size:1rem}
.compare tr:last-child td{border-bottom:0}
.compare td:last-child{font-weight:600;color:var(--teal-deep)}

.logo-showcase{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:18px}
.logo-showcase img{height:46px;width:auto;object-fit:contain}
.logo-showcase img.logo-gbt{height:22px;width:auto}

.cta{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:36px;border-radius:32px;background:linear-gradient(120deg,var(--teal),#1b6f8b);box-shadow:var(--shadow)}
.cta h2,.cta p{color:#fff}
.cta p{margin-bottom:0;max-width:680px}

.contact-layout{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:40px;align-items:start}
.contact-card{background:var(--white);border:1px solid var(--line);border-radius:30px;padding:30px;box-shadow:var(--shadow-soft)}
.contact-form h3,.contact-card h3{font-size:2rem;color:var(--teal-deep)}
.field-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:.96rem;font-weight:700;color:var(--heading);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:14px 16px;border-radius:16px;border:1px solid var(--line);background:#fbfaf8;font:inherit;color:var(--text)}
.field textarea{min-height:140px;resize:vertical}
.privacy{display:flex;gap:10px;align-items:flex-start;font-size:.94rem;color:var(--muted);margin-top:4px}
.privacy input{margin-top:4px}
.contact-list{display:grid;gap:16px;margin-top:24px}
.contact-item{background:var(--white);border:1px solid var(--line);border-radius:22px;padding:18px 20px}
.contact-item strong{display:block;color:var(--teal-deep);font-size:1.04rem;margin-bottom:4px}

.site-footer{background:#f0ece7;border-top:1px solid rgba(165,149,138,.18);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.35fr .85fr .85fr 1fr;gap:34px}
.footer-logo img{width:260px;max-width:100%;height:auto;margin-bottom:18px}
.footer-partners{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin-top:20px}
.footer-partners img{height:34px;width:auto;object-fit:contain}
.footer-partners img.logo-gbt{height:18px;width:auto}
.site-footer h4{font-size:1rem;letter-spacing:.16em;text-transform:uppercase;color:var(--taupe-deep);margin-bottom:14px}
.site-footer a,.site-footer p{color:var(--text);font-size:1rem}
.site-footer a{display:block;margin:10px 0}
.footer-bottom{margin-top:34px;padding-top:18px;border-top:1px solid rgba(165,149,138,.24);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:.96rem}

@media (max-width: 1050px){
  .hero-grid,.brand-ecosystem,.grid-4,.grid-3,.contact-layout,.footer-grid,.metric-grid,.stat-row{grid-template-columns:repeat(2,1fr)}
  .split,.split.reverse{grid-template-columns:1fr}
}
@media (max-width: 900px){
  .main-nav{display:none;position:absolute;top:88px;left:0;right:0;padding:24px;background:rgba(243,241,238,.98);border-bottom:1px solid rgba(165,149,138,.18);flex-direction:column;align-items:flex-start}
  .main-nav.open{display:flex}
  .menu-toggle{display:block}
  .logo img{width:210px;max-width:54vw}
  .hero,.page-hero{min-height:auto}
  .hero-inner{padding:48px 0 70px}
  .hero-grid,.brand-ecosystem,.grid-4,.grid-3,.grid-2,.contact-layout,.footer-grid,.metric-grid,.field-grid,.stat-row{grid-template-columns:1fr}
}
@media (max-width: 600px){
  body{font-size:17px}
  .container,.hero-inner{width:min(100% - 28px,var(--max))}
  .nav-wrap{width:calc(100% - 28px);height:80px}
  .site-header{backdrop-filter:blur(12px)}
  .logo img{width:170px}
  .section{padding:72px 0}
  .card,.brand-card,.contact-card,.hero-panel{padding:24px}
  .image-frame{padding:14px;border-radius:24px}
  .image-frame img{border-radius:18px}
  .cta{flex-direction:column;align-items:flex-start;padding:28px}
  .metric strong{font-size:2rem}
  .footer-bottom{flex-direction:column}
}

/* Extended sections for v3 */
.four-up{grid-template-columns:repeat(4,1fr)}
.text-logo{font-family:"Cormorant Garamond",Georgia,serif;font-size:2rem;color:var(--teal-deep);margin-bottom:18px}
.mini-card h3{font-size:1.55rem;margin-bottom:10px}
.text-center{text-align:center}
.glass-card{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.18)}
.light-checks li:before{background:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.14)}
.tag-chip{display:inline-flex;align-items:center;min-height:38px;padding:0 16px;border-radius:999px;background:#df8d27;color:#fff;font-size:.92rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;margin-bottom:18px}
.benefit-inline{font-size:1.12rem;color:var(--taupe-deep);font-weight:700;display:flex;gap:12px;flex-wrap:wrap;margin:20px 0 14px}
.benefit-inline span{color:#d18d3e}
.mini-feature{padding:14px 0;border-bottom:1px solid rgba(14,79,103,.10)}
.mini-feature:last-child{border-bottom:0;padding-bottom:0}
.mini-feature strong{display:block;color:var(--teal-deep);margin-bottom:4px}
.mini-feature span{display:block;color:var(--text)}
.grid-5{grid-template-columns:repeat(5,1fr)}
.process-grid{gap:18px}
.process-card{padding:22px}
.process-card h4{font-size:1.15rem;margin-bottom:8px;color:var(--teal-deep)}
.icon-row{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;margin-top:26px}
.icon-row.wrap-left{justify-content:flex-start}
.icon-pill{padding:12px 18px;border-radius:999px;background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow-soft);font-weight:600;color:var(--teal-deep)}
.detail-list{list-style:none;padding:0;margin:0}
.detail-list li{position:relative;padding-left:22px;margin-bottom:10px}
.detail-list li:before{content:"•";position:absolute;left:0;top:0;color:#d18d3e;font-weight:700}
.table-card h3{margin-bottom:18px}
.compact-table{width:100%;border-collapse:collapse;font-size:.98rem}
.compact-table th,.compact-table td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left}
.compact-table th{color:var(--taupe-deep);background:#f7f5f2;font-size:.95rem}
.compact-table tr:last-child td{border-bottom:0}
.family-card h3{color:var(--teal-deep);margin-bottom:6px}
.family-card p{font-weight:700;color:var(--taupe-deep);margin-bottom:8px}
.family-card span{display:block;color:var(--muted)}
.two-col-gap{grid-template-columns:repeat(2,1fr);gap:20px;margin-top:28px}
.acqua-hero{background:linear-gradient(120deg,rgba(243,241,238,.96),rgba(243,241,238,.84)),url('img/planta-2-wide.jpg') center/cover no-repeat}

@media (max-width:1050px){
  .four-up,.grid-5{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .four-up,.grid-5,.two-col-gap{grid-template-columns:1fr}
  .benefit-inline{font-size:1rem}
}

/* v4: home content refinement and stronger photography */
.logo img{width:245px;max-width:44vw;height:64px;object-fit:contain;object-position:left center}
.hero{min-height:auto;background:linear-gradient(100deg,rgba(243,241,238,.97) 0%,rgba(243,241,238,.92) 58%,rgba(243,241,238,.72) 100%),url('img/planta-2-wide.jpg') center/cover no-repeat;align-items:center}
.hero-inner{padding:96px 0 70px}
.hero-copy{max-width:940px}
.hero-copy h1{max-width:980px;margin-bottom:28px}
.hero-copy .lead{max-width:860px}
.hero-summary{display:grid;grid-template-columns:1.15fr .8fr 1.15fr;gap:20px;margin-top:42px;align-items:stretch}
.summary-card{background:rgba(255,255,255,.9);border:1px solid rgba(14,79,103,.13);border-radius:26px;padding:26px;box-shadow:var(--shadow-soft);backdrop-filter:blur(8px)}
.summary-card h3{font-size:1.65rem;margin-bottom:12px;color:var(--teal-deep)}
.summary-card p{margin-bottom:0;color:var(--muted)}
.summary-card ul{margin:0;padding-left:20px;color:var(--text)}
.summary-card li{margin:7px 0}
.summary-value{font-family:"Cormorant Garamond",Georgia,serif;font-size:3.35rem;line-height:.95;color:var(--teal);margin-bottom:10px;font-weight:600}
.photo-story{position:relative;display:grid;grid-template-columns:1.65fr .75fr;min-height:620px;background:#fff;overflow:hidden}
.photo-story img{width:100%;height:100%;object-fit:cover}
.photo-main{min-height:620px}
.photo-stack{display:grid;grid-template-rows:1fr 1fr;gap:8px;padding-left:8px}
.photo-stack>div{min-height:0}
.photo-caption{position:absolute;left:max(28px,calc((100vw - var(--max))/2));bottom:34px;background:rgba(243,241,238,.92);backdrop-filter:blur(10px);border-radius:20px;padding:18px 22px;box-shadow:var(--shadow);max-width:420px}
.photo-caption span{display:block;text-transform:uppercase;letter-spacing:.16em;font-size:.82rem;color:var(--taupe-deep);font-weight:700;margin-bottom:5px}
.photo-caption strong{font-family:"Cormorant Garamond",Georgia,serif;font-size:1.8rem;line-height:1.05;color:var(--teal-deep)}
.brand-ecosystem.four-up{grid-template-columns:repeat(2,1fr)}
.brand-card{min-height:285px}
.brand-card img{max-width:100%}
.image-frame img{min-height:420px}

@media(max-width:1050px){
  .hero-summary{grid-template-columns:1fr 1fr}
  .summary-card-wide{grid-column:1/-1}
  .photo-story{grid-template-columns:1fr;min-height:auto}
  .photo-main{min-height:500px}
  .photo-stack{display:none}
}
@media(max-width:900px){
  .logo img{width:205px;height:58px;max-width:58vw}
  .hero-inner{padding:64px 0 56px}
  .hero-summary{grid-template-columns:1fr}
  .summary-card-wide{grid-column:auto}
  .brand-ecosystem.four-up{grid-template-columns:1fr}
}
@media(max-width:600px){
  .logo img{width:175px;height:52px}
  .summary-card{padding:22px}
  .summary-value{font-size:2.8rem}
  .photo-main{min-height:380px}
  .photo-caption{left:14px;right:14px;bottom:14px;max-width:none}
  .photo-caption strong{font-size:1.5rem}
}

/* v5: opening photography and logo refinements */
.site-header .logo img{
  width:270px;
  height:70px;
  max-width:47vw;
  object-fit:contain;
  object-position:left center;
}
.opening-photo{
  padding:112px 26px 28px;
  background:var(--paper);
}
.opening-photo-frame{
  position:relative;
  width:min(1450px,100%);
  height:clamp(430px,67vh,760px);
  margin:0 auto;
  padding:16px;
  background:linear-gradient(145deg,#fff 0%,#f7f5f2 48%,#e6e1dc 100%);
  border:1px solid rgba(255,255,255,.95);
  border-radius:34px;
  box-shadow:
    0 28px 70px rgba(31,56,66,.18),
    inset 2px 2px 0 rgba(255,255,255,.95),
    inset -2px -2px 0 rgba(164,142,128,.16);
  overflow:hidden;
}
.opening-photo-frame:before{
  content:"";
  position:absolute;
  inset:8px;
  z-index:1;
  pointer-events:none;
  border-radius:27px;
  border:1px solid rgba(255,255,255,.9);
  box-shadow:inset 0 0 22px rgba(255,255,255,.55);
}
.opening-photo-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  border-radius:23px;
}
.opening-photo-caption{
  position:absolute;
  z-index:2;
  left:42px;
  bottom:38px;
  max-width:460px;
  padding:17px 21px;
  border-radius:18px;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);
  box-shadow:0 12px 34px rgba(23,50,61,.15);
  border:1px solid rgba(255,255,255,.9);
}
.opening-photo-caption span{
  display:block;
  color:var(--taupe-deep);
  font-size:.82rem;
  text-transform:uppercase;
  letter-spacing:.17em;
  font-weight:700;
  margin-bottom:4px;
}
.opening-photo-caption strong{
  display:block;
  color:var(--teal-deep);
  font:600 1.75rem/1.05 "Cormorant Garamond",Georgia,serif;
}
.hero{
  background:var(--paper);
  min-height:auto;
}
.hero-inner{
  padding:62px 0 76px;
}
.hero-copy{
  max-width:980px;
}
.hero-copy h1{
  max-width:1050px;
}
.technology-layout{
  display:grid;
  grid-template-columns:minmax(330px,.85fr) minmax(0,1.65fr);
  gap:34px;
  align-items:stretch;
}
.technology-layout .grid-3{
  grid-template-columns:repeat(2,1fr);
}
.technology-photo{
  min-height:100%;
}
.technology-photo img{
  height:100%;
  min-height:620px;
  object-fit:cover;
}
.brand-card img.logo-gbt{
  width:145px;
  height:auto;
  max-height:none;
  object-fit:contain;
  object-position:left center;
  margin-bottom:22px;
}
.logo-showcase img.logo-gbt,
.footer-partners img.logo-gbt{
  width:auto;
  height:38px;
  max-width:150px;
  object-fit:contain;
  object-position:left center;
}

@media(max-width:1050px){
  .technology-layout{grid-template-columns:1fr}
  .technology-photo img{min-height:440px}
}
@media(max-width:900px){
  .site-header .logo img{width:225px;height:62px;max-width:61vw}
  .opening-photo{padding:98px 16px 18px}
  .opening-photo-frame{height:clamp(380px,56vh,580px);padding:12px;border-radius:26px}
  .opening-photo-frame img{border-radius:18px}
  .opening-photo-caption{left:28px;right:28px;bottom:26px;max-width:none}
  .technology-layout .grid-3{grid-template-columns:1fr}
}
@media(max-width:600px){
  .site-header .logo img{width:188px;height:54px}
  .opening-photo{padding:88px 10px 10px}
  .opening-photo-frame{height:400px;padding:9px;border-radius:20px}
  .opening-photo-frame:before{inset:5px;border-radius:16px}
  .opening-photo-frame img{border-radius:13px}
  .opening-photo-caption{left:18px;right:18px;bottom:18px;padding:14px 16px}
  .opening-photo-caption strong{font-size:1.42rem}
  .hero-inner{padding:48px 0 62px}
}

/* v6 refinements */
.opening-photo{padding:112px 26px 12px;background:var(--paper)}
.opening-photo-wrap{width:min(1450px,100%);margin:0 auto}
.opening-figure{margin:0}
.opening-photo-frame{position:relative;width:100%;height:clamp(430px,67vh,760px);margin:0 auto;padding:16px;background:linear-gradient(145deg,#fff 0%,#f7f5f2 48%,#e6e1dc 100%);border:1px solid rgba(255,255,255,.95);border-radius:34px;box-shadow:0 28px 70px rgba(31,56,66,.18), inset 2px 2px 0 rgba(255,255,255,.95), inset -2px -2px 0 rgba(164,142,128,.16);overflow:hidden}
.opening-photo-frame:before{content:"";position:absolute;inset:8px;z-index:1;pointer-events:none;border-radius:27px;border:1px solid rgba(255,255,255,.9);box-shadow:inset 0 0 22px rgba(255,255,255,.55)}
.opening-photo-frame img{width:100%;height:100%;object-fit:cover;object-position:center;border-radius:23px}
.opening-photo-note{margin-top:14px;padding-left:6px;color:var(--muted);font-size:.98rem;letter-spacing:.01em}
.opening-photo-caption{display:none}
.hero{background:var(--paper)}
.hero-inner{padding:34px 0 76px}
.hero-summary{display:grid;grid-template-columns:1.15fr .95fr 1.1fr;gap:20px;margin-top:42px;align-items:stretch}
.summary-card h3{font-size:1.55rem}
.summary-card ul{margin:0;padding-left:20px}
.summary-card li{margin:7px 0}
.brand-ecosystem.brand-ordered .brand-card img{height:48px}
.brand-ecosystem.brand-ordered .brand-card img.logo-gbt{height:22px;width:auto;max-width:140px}
#tecnologia .section-head .lead{max-width:950px}
.applications-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.app-card{text-align:center;padding-top:22px}
.app-badge{width:180px;height:180px;border-radius:50%;margin:0 auto 22px;display:flex;align-items:center;justify-content:center;padding:14px;background:linear-gradient(180deg,#fff, #f2f0ed);box-shadow:0 18px 36px rgba(44,60,65,.14);border:1px solid rgba(14,79,103,.18);overflow:hidden}
.app-badge img{width:100%;height:100%;object-fit:contain;object-position:center center;display:block}
.app-card h3{font-size:1.8rem;color:var(--teal-deep);margin-bottom:10px}
.acqua-highlight .split{align-items:center}
.eps-actions{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:26px 0 10px}
.eps-action{padding:18px 18px;border-radius:18px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(8px);box-shadow:0 12px 28px rgba(0,0,0,.08)}
.eps-action strong{display:block;color:#fff;font-size:1.08rem;font-weight:700}

@media(max-width:1200px){
  .applications-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:1050px){
  .hero-summary{grid-template-columns:1fr 1fr}
  .summary-card-wide{grid-column:1/-1}
}
@media(max-width:900px){
  .opening-photo{padding:98px 16px 10px}
  .opening-photo-frame{height:clamp(380px,56vh,580px);padding:12px;border-radius:26px}
  .opening-photo-frame img{border-radius:18px}
  .hero-inner{padding:24px 0 56px}
  .hero-summary{grid-template-columns:1fr}
  .summary-card-wide{grid-column:auto}
  .applications-grid{grid-template-columns:1fr}
  .eps-actions{grid-template-columns:1fr}
}
@media(max-width:600px){
  .opening-photo{padding:88px 10px 8px}
  .opening-photo-frame{height:400px;padding:9px;border-radius:20px}
  .opening-photo-frame:before{inset:5px;border-radius:16px}
  .opening-photo-frame img{border-radius:13px}
  .opening-photo-note{font-size:.93rem}
  .app-badge{width:156px;height:156px;padding:12px}
}

/* v7 refinements */
.acqua-section{
  background:linear-gradient(145deg,#446974 0%,#5f848e 52%,#78979b 100%);
}
.acqua-section .eyebrow{color:#e8d8c9}
.acqua-section .lead{color:#edf4f4}
.acqua-section .eps-action{
  background:rgba(255,255,255,.14);
  border-color:rgba(255,255,255,.28);
  box-shadow:0 12px 28px rgba(32,63,70,.13);
}
.app-badge img{
  object-position:center center;
  object-fit:contain;
  transform:none;
}

/* v9 refinements */
.app-badge{
  padding:0;
}
.app-badge img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center center;
  display:block;
}
.brand-card img.logo-gbt,
.brand-ecosystem.brand-ordered .brand-card img.logo-gbt{
  height:32px !important;
  width:auto;
  max-width:180px;
}
.logo-showcase img.logo-gbt,
.footer-partners img.logo-gbt{
  height:24px !important;
  width:auto;
}

/* v12: plant video */
.opening-photo-note{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.video-link{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-weight:700;white-space:nowrap}
.video-link:hover{color:var(--teal-deep)}
.video-section{background:var(--white)}
.video-frame{width:min(1080px,100%);margin:0 auto;padding:16px;border-radius:32px;background:linear-gradient(145deg,#fff 0%,#f6f3ef 48%,#e4ded8 100%);border:1px solid rgba(255,255,255,.95);box-shadow:0 28px 70px rgba(31,56,66,.16),inset 2px 2px 0 rgba(255,255,255,.95),inset -2px -2px 0 rgba(164,142,128,.16)}
.video-frame video{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:22px;background:#0d1f26}
@media(max-width:600px){
  .opening-photo-note{align-items:flex-start}
  .video-frame{padding:9px;border-radius:20px}
  .video-frame video{border-radius:13px}
}

/* v13 content and contact refinements */
.summary-title{
  font-family:"Cormorant Garamond",Georgia,serif;
  font-size:2rem;
  line-height:1.05;
  color:var(--teal-deep);
  margin:0 0 18px;
  font-weight:600;
}
.summary-card:first-child .summary-title{
  color:var(--teal);
}
.summary-card ul{
  padding-left:20px;
}
.summary-card li{
  margin-bottom:10px;
}
.contact-hero{
  min-height:62vh;
}
.contact-hero-copy{
  max-width:960px;
}
.contact-hero-copy h1{
  max-width:960px;
  color:var(--teal-deep);
}
.contact-form-container{
  max-width:900px;
}
.contact-form-wide{
  width:100%;
  padding:40px;
}
.contact-form-wide h3{
  font-size:2.45rem;
  margin-bottom:26px;
}
@media(max-width:600px){
  .summary-title{font-size:1.72rem}
  .contact-form-wide{padding:24px}
  .contact-hero-copy h1{font-size:clamp(2.7rem,12vw,4rem)}
}

/* v14 refinements */
.opening-photo-note{
  align-items:center;
}
.opening-photo-label{
  color:var(--teal);
  font-weight:700;
  font-size:1rem;
  letter-spacing:.02em;
}
.proposal-visual{
  width:100%;
}
.proposal-visual img{
  width:100%;
  height:auto;
  display:block;
  border-radius:28px;
  box-shadow:none;
}
.technology-collage{
  position:relative;
  min-height:640px;
  padding:24px 0 24px 24px;
}
.technology-collage:before{
  content:"";
  position:absolute;
  inset:30px 30px 40px 0;
  border-radius:40px;
  background:linear-gradient(145deg,rgba(14,79,103,.08),rgba(164,142,128,.08));
  filter:blur(.2px);
}
.tech-main,
.tech-float{
  position:relative;
  overflow:hidden;
  border-radius:32px;
  background:#fff;
  box-shadow:0 28px 60px rgba(25,51,61,.14);
}
.tech-main{
  width:84%;
  z-index:1;
}
.tech-main img{
  width:100%;
  height:auto;
  display:block;
}
.tech-float{
  width:64%;
  position:absolute;
  right:0;
  bottom:0;
  z-index:2;
  border:8px solid rgba(255,255,255,.92);
}
.tech-float img{
  width:100%;
  height:auto;
  display:block;
}
.acqua-visual{
  position:relative;
  width:100%;
  max-width:560px;
  margin-left:auto;
}
.acqua-product-frame{
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.18);
  border-radius:34px;
  padding:18px;
  box-shadow:0 20px 42px rgba(16,39,47,.18);
  backdrop-filter:blur(8px);
}
.acqua-product-frame img{
  width:100%;
  max-height:640px;
  object-fit:cover;
  border-radius:24px;
}
.acqua-cell-inset{
  position:absolute;
  left:-44px;
  bottom:24px;
  width:210px;
  border-radius:28px;
  overflow:hidden;
  border:8px solid rgba(255,255,255,.92);
  box-shadow:0 18px 36px rgba(16,39,47,.24);
  background:#0d1b21;
}
.acqua-cell-inset img{
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
}
@media(max-width:1050px){
  .technology-collage{min-height:auto;padding:12px 0 0}
  .technology-collage:before{inset:18px 16px 18px 0}
  .tech-main{width:78%}
  .tech-float{width:58%}
  .acqua-visual{max-width:none;margin:0 auto}
}
@media(max-width:900px){
  .proposal-visual img{border-radius:22px}
  .technology-collage{padding:0;display:grid;gap:18px}
  .technology-collage:before{display:none}
  .tech-main,.tech-float{position:relative;width:100%;right:auto;bottom:auto;border-radius:24px}
  .tech-float{border-width:0}
  .acqua-cell-inset{left:auto;right:14px;bottom:14px;width:150px;border-width:6px}
}
@media(max-width:600px){
  .opening-photo-label{font-size:.94rem}
  .acqua-product-frame{padding:10px;border-radius:20px}
  .acqua-product-frame img{border-radius:14px}
  .acqua-cell-inset{width:122px;border-radius:18px}
}

/* v15 technology showcase redesign */
.technology-showcase{
  display:grid;
  grid-template-columns:1.15fr 0.85fr 0.95fr;
  grid-template-areas:
    "process-main process-main process-secondary"
    "control-wide control-wide control-panel";
  gap:22px;
  margin-top:30px;
  margin-bottom:34px;
}
.tech-tile{
  position:relative;
  overflow:hidden;
  min-height:260px;
  border-radius:34px;
  background:#0d1f26;
  box-shadow:0 30px 70px rgba(20,42,51,.16);
  isolation:isolate;
}
.tech-tile img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.tech-tile:after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(10,24,31,.05) 0%,rgba(10,24,31,.18) 35%,rgba(10,24,31,.78) 100%);
  z-index:1;
}
.tech-tile-caption{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  z-index:2;
  padding:24px 24px 22px;
}
.tech-tile-caption span{
  display:block;
  margin-bottom:7px;
  color:#d7c5b8;
  font-size:.84rem;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
}
.tech-tile-caption strong{
  display:block;
  color:#fff;
  font-family:"Cormorant Garamond",Georgia,serif;
  font-size:1.6rem;
  line-height:1.05;
  font-weight:500;
}
.tech-tile-process-main{grid-area:process-main;min-height:440px}
.tech-tile-process-secondary{grid-area:process-secondary;min-height:440px}
.tech-tile-control-wide{grid-area:control-wide;min-height:320px}
.tech-tile-control-panel{grid-area:control-panel;min-height:320px}
.tech-tile-control-panel img{object-fit:cover;object-position:center top}
.tech-tile-control-wide img{object-position:center center}
.technology-principles{
  margin-top:8px;
}
.technology-principles.grid-4{
  grid-template-columns:repeat(4,1fr);
}
.technology-principles .card{
  height:100%;
}
.technology-principles .card h3{
  font-size:1.45rem;
}
@media(max-width:1200px){
  .technology-principles.grid-4{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:1050px){
  .technology-showcase{
    grid-template-columns:1fr 1fr;
    grid-template-areas:
      "process-main process-main"
      "process-secondary control-panel"
      "control-wide control-wide";
  }
  .tech-tile-process-main,
  .tech-tile-process-secondary,
  .tech-tile-control-wide,
  .tech-tile-control-panel{min-height:320px}
  .technology-principles.grid-4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .technology-showcase{
    grid-template-columns:1fr;
    grid-template-areas:
      "process-main"
      "process-secondary"
      "control-wide"
      "control-panel";
  }
  .tech-tile{border-radius:24px;min-height:260px}
  .tech-tile-caption{padding:18px 18px 16px}
  .tech-tile-caption strong{font-size:1.35rem}
  .technology-principles.grid-4{grid-template-columns:1fr}
}


/* v16 refinements */
.summary-title-sans{font-family:"Source Sans 3",Arial,sans-serif;letter-spacing:0;font-size:1.55rem;font-weight:700;line-height:1.1;}
.summary-card:first-child .summary-title-sans{font-size:1.6rem;}
.footer-contact{display:flex;flex-direction:column;}
.footer-line{display:block;color:rgba(255,255,255,.9);text-decoration:none;margin:0 0 10px;line-height:1.45;}
.footer-line:hover{color:#fff;}
.footer-partners-right{justify-content:flex-start;margin-top:14px;}
.footer-grid > div:first-child .footer-partners{display:none;}
.technology-principles.grid-4{grid-template-columns:repeat(4,1fr);}
.app-badge img{object-fit:cover;object-position:center center;}
.tech-tile-control-wide img{object-fit:cover;object-position:center center;}
@media(max-width:1200px){.technology-principles.grid-4{grid-template-columns:repeat(3,1fr);}}
@media(max-width:900px){.summary-title-sans{font-size:1.38rem;}.footer-partners-right{justify-content:flex-start;}.footer-line{margin-bottom:8px;}}

/* v19 footer alignment */
.footer-grid > div{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
}
.footer-grid h4{
  min-height:24px;
  margin:0 0 4px;
}
.footer-grid > div > a,
.footer-contact .footer-line{
  display:block;
  min-height:24px;
  margin:10px 0 0;
  line-height:1.5;
  color:var(--text);
}
.footer-contact{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
}
.footer-partners-right{
  margin-top:20px;
}


/* v20 native multilingual navigation */
.language-switcher{display:flex;align-items:center;gap:4px;margin-left:2px;padding:3px;border:1px solid rgba(14,79,103,.20);border-radius:999px;background:rgba(255,255,255,.48);white-space:nowrap}
.language-switcher a{display:flex;align-items:center;justify-content:center;min-width:31px;height:29px;padding:0 8px;border-radius:999px;font-size:.78rem;font-weight:700;letter-spacing:.04em;color:var(--muted)}
.language-switcher a:after{display:none!important}
.language-switcher a:hover,.language-switcher a.active-lang{background:var(--teal);color:#fff}
html[lang="fr"] .main-nav{gap:18px;font-size:.95rem}
html[lang="en"] .main-nav{gap:22px;font-size:.97rem}
@media(max-width:1120px){.nav-wrap{width:min(1360px,calc(100% - 28px))}.main-nav{gap:16px;font-size:.92rem}.nav-cta{padding:0 14px}.site-header .logo img{width:230px}}
@media(max-width:900px){.language-switcher{margin:6px 0 2px}.language-switcher a{min-width:38px;height:34px}.main-nav{font-size:1rem!important}}