/* CIBAI site v2.2 - cache-busted assets */

:root{
  --navy:#082d59;
  --navy-2:#041e3b;
  --teal:#0fa88a;
  --teal-dark:#087c6d;
  --cyan:#34b9be;
  --ink:#10233f;
  --muted:#586a82;
  --line:#dce6ee;
  --soft:#f4f8fb;
  --white:#ffffff;
  --shadow:0 18px 50px rgba(5,34,67,.12);
  --serif:Georgia,"Times New Roman",serif;
  --sans:"IBM Plex Sans","Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);font-family:var(--sans);background:#fff;line-height:1.55}
body.menu-open{overflow:hidden}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
button{font:inherit}
.container{width:min(1180px,calc(100% - 40px));margin-inline:auto}
.section{padding:86px 0}
.eyebrow{font-size:.72rem;letter-spacing:.21em;text-transform:uppercase;font-weight:700;color:var(--teal);margin:0 0 12px}
h1,h2,h3,p{margin-top:0}
h1,h2{font-family:var(--serif);letter-spacing:-.025em}
h1{font-size:clamp(2.7rem,5.2vw,5.2rem);line-height:1.02}
h2{font-size:clamp(2.1rem,3.7vw,3.4rem);line-height:1.08}
p{color:var(--muted)}
.skip{position:absolute;left:-9999px;top:auto}
.skip:focus{left:14px;top:14px;background:white;color:var(--navy);padding:10px 14px;border-radius:8px;z-index:999}

.header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,230,238,.92)
}
.header-inner{height:78px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;min-width:310px}
.brand-mark{width:52px;height:52px;flex:0 0 52px}
.brand-name{font-weight:700;color:var(--navy);font-size:2rem;letter-spacing:.04em;line-height:.9}
.brand-desc{font-size:.62rem;color:var(--muted);line-height:1.2;margin-left:4px;max-width:162px}
.nav{margin-left:auto;display:flex;align-items:center;gap:27px;font-size:.82rem;font-weight:600;color:#203d61}
.nav a{padding:29px 0 25px;position:relative;white-space:nowrap}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--teal);transition:.25s}
.nav a:hover::after,.nav a.active::after{right:0}
.lang-switch{display:flex;align-items:center;gap:7px;margin-left:14px;padding-left:18px;border-left:1px solid var(--line);white-space:nowrap}
.lang-switch button{border:0;background:none;padding:4px 1px;cursor:pointer;color:#60758f;font-size:.8rem;font-weight:600}
.lang-switch button.active{color:var(--teal);font-weight:800}
.lang-switch span{color:#a8b7c6}
.hamburger{display:none;margin-left:auto;border:0;background:transparent;color:var(--navy);font-size:1.7rem;cursor:pointer}

.hero{position:relative;height:min(670px,72vh);min-height:560px;overflow:hidden;background:#092d53}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 50%}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(3,27,53,.91) 0%,rgba(4,34,64,.77) 34%,rgba(4,33,59,.30) 62%,rgba(4,33,59,.08) 100%)
}
.hero-content{height:100%;display:flex;align-items:center;position:relative;z-index:2}
.hero-copy{width:min(590px,54vw);color:white;padding-top:12px}
.hero .eyebrow{color:#d5eee9}
.hero h1{margin-bottom:21px;color:white;text-shadow:0 2px 18px rgba(0,0,0,.14)}
.hero-lead{color:#e1eaf2;font-size:1.08rem;max-width:550px;margin-bottom:29px}
.hero-actions{display:flex;gap:13px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;justify-content:center;padding:13px 19px;border-radius:4px;border:1px solid transparent;font-weight:700;font-size:.9rem;transition:.22s}
.btn-teal{background:var(--teal);color:white}
.btn-teal:hover{background:#0b947b;transform:translateY(-1px)}
.btn-ghost{border-color:rgba(255,255,255,.64);color:white;background:rgba(255,255,255,.05)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.hero-footer{
  position:absolute;z-index:3;bottom:18px;right:max(30px,calc((100vw - 1180px)/2));
  color:rgba(255,255,255,.85);font-size:.65rem;letter-spacing:.2em;text-transform:uppercase
}

.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;align-items:center;gap:60px}
.about-copy h2{margin-bottom:22px}
.about-meta{display:inline-flex;align-items:center;gap:10px;margin:-2px 0 18px;color:#5c768f;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700}
.about-meta::before{content:"";width:28px;height:2px;background:var(--teal);display:inline-block}
.about-copy p{font-size:1.03rem}
.quote{margin-top:28px;padding:22px 24px;border-left:3px solid var(--teal);background:#f8fbfc}
.quote p{font-family:var(--serif);font-style:italic;color:#38536f;margin-bottom:12px}
.quote strong{display:block;font-size:.86rem;color:var(--navy)}
.quote small{color:var(--muted)}
.about-image-wrap{position:relative;background:#e7f0f5;overflow:hidden;min-height:580px}
.about-image{width:100%;height:100%;min-height:580px;object-fit:cover;object-position:center 35%;filter:saturate(.90) contrast(1.02)}
.about-image-wrap::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 65%,rgba(7,45,85,.07))}
.about-side-note{position:absolute;right:22px;top:50%;transform:translateY(-50%);z-index:2;color:#143c65;font-family:var(--serif);font-size:1.12rem;line-height:1.35;width:90px}
.about-side-note::before,.about-side-note::after{content:"";display:block;width:30px;height:2px;background:var(--teal);margin:0 0 17px}
.about-side-note::after{margin:17px 0 0}

.research{background:#f7fafc}
.section-head{display:flex;justify-content:space-between;gap:45px;align-items:flex-end;margin-bottom:34px}
.section-head h2{margin-bottom:0;max-width:760px}
.section-intro{max-width:520px;margin-bottom:3px}
.research-grid{display:grid;grid-template-columns:repeat(6,1fr);border:1px solid var(--line);background:white}
.research-card{padding:25px 18px 24px;min-height:276px;border-right:1px solid var(--line);transition:.2s}
.research-card:last-child{border-right:0}
.research-card:hover{background:#f9fcfd;transform:translateY(-3px);box-shadow:0 12px 30px rgba(8,45,89,.06);z-index:2}
.r-icon{width:47px;height:47px;margin-bottom:17px;color:var(--teal)}
.r-icon svg{width:100%;height:100%;stroke:currentColor}
.research-card h3{font-family:var(--serif);font-size:1.03rem;line-height:1.15;color:var(--navy);margin-bottom:10px}
.research-card p{font-size:.82rem;line-height:1.5;margin-bottom:0}

.infrastructure{background:#fff}
.infra-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.photo-card{position:relative;overflow:hidden;min-height:420px;background:#102a45}
.photo-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .55s}
.photo-card:hover img{transform:scale(1.018)}
.photo-card::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(2,21,40,.82) 0%,rgba(2,21,40,.08) 62%)}
.photo-caption{position:absolute;z-index:2;left:28px;right:28px;bottom:24px;color:white}
.photo-caption h3{font-family:var(--serif);font-size:1.55rem;margin-bottom:7px}
.photo-caption p{color:#d9e5ed;margin:0;max-width:560px;font-size:.9rem}
.concept-tag{
  display:inline-block;margin-bottom:10px;padding:5px 8px;border:1px solid rgba(255,255,255,.48);
  font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:#edf7f6;background:rgba(4,32,59,.35)
}

.collab{position:relative;background:linear-gradient(90deg,#073250,#07556b);color:white;overflow:hidden}
.collab::after{
  content:"";position:absolute;right:-6%;top:-120%;width:650px;height:650px;border-radius:50%;
  background:radial-gradient(circle,rgba(44,195,169,.23),transparent 64%)
}
.collab-inner{min-height:165px;display:flex;align-items:center;justify-content:space-between;gap:40px;position:relative;z-index:2}
.collab h2{font-size:2rem;color:white;margin-bottom:9px}
.collab p{color:#dcecf3;margin:0;max-width:700px}
.btn-white{background:white;color:var(--navy);min-width:190px}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 10px 25px rgba(0,0,0,.12)}

.contact{padding:70px 0;background:#f8fbfd}
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:start}
.contact h2{margin-bottom:20px}
.contact-details{border-left:1px solid var(--line);padding-left:35px}
.contact-item{margin-bottom:23px}
.contact-item b{display:block;color:var(--navy);font-size:.84rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:5px}
.contact-item a,.contact-item span{color:var(--muted)}
.contact-item a:hover{color:var(--teal)}

.footer{background:white;border-top:1px solid var(--line);padding:34px 0 22px}
.footer-top{display:grid;grid-template-columns:1.2fr .9fr 1.15fr;gap:35px;align-items:center;padding-bottom:28px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand img{width:46px}
.footer-name{font-size:1.8rem;font-weight:700;color:var(--navy);letter-spacing:.03em}
.footer-desc{font-size:.62rem;line-height:1.25;color:var(--muted);max-width:190px}
.footer-en{font-size:.7rem;color:#63758c;line-height:1.4;border-left:1px solid var(--line);padding-left:24px}
.footer-links{display:flex;gap:18px;justify-content:flex-end;font-size:.72rem;color:#506982;flex-wrap:wrap}
.footer-links a:hover{color:var(--teal)}
.footer-bottom{border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#78889b;font-size:.68rem}
.footer-legal{display:flex;flex-direction:column;gap:5px}
.footer-meta{color:#5f738a}
.footer-motto{text-transform:uppercase;letter-spacing:.2em;color:#5c768f}
.footer-motto::before{content:"";display:inline-block;width:32px;height:2px;background:var(--teal);vertical-align:middle;margin-right:14px}

.reveal{opacity:0;transform:translateY(12px);transition:.55s ease}
.reveal.is-visible{opacity:1;transform:none}

@media (max-width:1080px){
  .brand{min-width:auto}
  .brand-desc{display:none}
  .nav{gap:17px}
  .research-grid{grid-template-columns:repeat(3,1fr)}
  .research-card{border-bottom:1px solid var(--line)}
  .research-card:nth-child(3n){border-right:0}
  .research-card:nth-child(n+4){border-bottom:0}
}
@media (max-width:860px){
  .header-inner{height:70px}
  .brand-mark{width:44px;height:44px;flex-basis:44px}
  .brand-name{font-size:1.7rem}
  .hamburger{display:block}
  .nav{
    display:none;position:fixed;inset:70px 0 auto 0;background:white;border-bottom:1px solid var(--line);
    padding:20px;flex-direction:column;align-items:flex-start;gap:0;box-shadow:var(--shadow)
  }
  .nav.open{display:flex}
  .nav a{width:100%;padding:13px 4px}
  .nav a::after{display:none}
  .lang-switch{margin:12px 0 2px;padding:12px 4px 0;border-left:0;border-top:1px solid var(--line);width:100%}
  .hero{height:640px}
  .hero::after{background:linear-gradient(90deg,rgba(3,27,53,.88),rgba(4,34,64,.62) 58%,rgba(4,33,59,.22))}
  .hero-copy{width:min(620px,88vw)}
  .about-grid,.contact-grid{grid-template-columns:1fr}
  .about-image-wrap{min-height:520px}
  .about-image{min-height:520px}
  .section-head{display:block}
  .section-intro{margin-top:18px}
  .infra-grid{grid-template-columns:1fr}
  .photo-card{min-height:390px}
  .collab-inner{padding:35px 0;align-items:flex-start;flex-direction:column}
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-links{grid-column:1/-1;justify-content:flex-start}
}
@media (max-width:620px){
  .container{width:min(100% - 28px,1180px)}
  .section{padding:64px 0}
  .hero{height:620px;min-height:620px}
  .hero-bg{object-position:63% center}
  .hero::after{background:linear-gradient(90deg,rgba(3,27,53,.92),rgba(4,34,64,.71) 67%,rgba(4,33,59,.35))}
  .hero-copy{width:100%}
  h1{font-size:2.65rem}
  h2{font-size:2.2rem}
  .hero-lead{font-size:1rem}
  .hero-footer{left:14px;right:auto;font-size:.56rem}
  .about-side-note{display:none}
  .research-grid{grid-template-columns:1fr}
  .research-card{border-right:0;border-bottom:1px solid var(--line)!important;min-height:auto}
  .research-card:last-child{border-bottom:0!important}
  .about-image-wrap,.about-image{min-height:430px}
  .photo-card{min-height:330px}
  .footer-top{grid-template-columns:1fr}
  .footer-en{border-left:0;padding-left:0}
  .footer-bottom{flex-direction:column}
}