body.v15 .nav a.nav-special-center{background:#0b6f88;color:#fff}
body.v15 .nav a.nav-special-center:hover{background:#0a6076}
body.v15 .nav a.nav-special-petro{background:#8a672c;color:#fff}
body.v15 .nav a.nav-special-petro:hover{background:#775821}
body.v15 .nav a.nav-special-center,body.v15 .nav a.nav-special-petro{font-weight:900}
body.v15 .microsites-home-section{padding:34px 0 54px;background:#eef4f8}
body.v15 .microsites-carousel-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:18px}
body.v15 .microsites-carousel-head h2{margin:4px 0 0;font-size:32px;color:#0a3b60}
body.v15 .microsites-carousel-head p{max-width:610px;margin:0;color:#5e7485;font-size:13px}
body.v15 .microsites-carousel{display:grid;grid-template-columns:1fr 1fr;gap:16px}
body.v15 .microsite-slide{min-height:390px;position:relative;overflow:hidden;border-radius:3px;background-size:cover;background-position:center;color:#fff;padding:30px;display:flex;flex-direction:column;justify-content:flex-end;box-shadow:0 10px 26px rgba(4,39,68,.12)}
body.v15 .microsite-slide:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,31,55,.96),rgba(2,42,69,.70) 58%,rgba(2,42,69,.12))}
body.v15 .microsite-slide.petro:before{background:linear-gradient(90deg,rgba(255,255,255,.98),rgba(255,255,255,.84) 57%,rgba(255,255,255,.18))}
body.v15 .microsite-slide>*{position:relative;z-index:1}
body.v15 .microsite-slide .mini-label{font-size:10px;letter-spacing:.13em;text-transform:uppercase;font-weight:900;color:#9ad7f7;margin-bottom:8px}
body.v15 .microsite-slide.petro .mini-label{color:#8b672b}
body.v15 .microsite-slide h3{font-size:30px;line-height:1.08;margin:0 0 12px;color:#fff;max-width:570px}
body.v15 .microsite-slide.petro h3{color:#0a4167}
body.v15 .microsite-slide p{font-size:13px;max-width:580px;color:#d7e8f2;margin:0 0 16px}
body.v15 .microsite-slide.petro p{color:#3f6076}
body.v15 .microsite-tags{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 18px}
body.v15 .microsite-tags span{font-size:10px;border:1px solid rgba(255,255,255,.34);padding:5px 7px;background:rgba(255,255,255,.06)}
body.v15 .petro .microsite-tags span{border-color:#c8d9e3;background:rgba(255,255,255,.75);color:#355c73}


body.v15 .subsite-bar{position:relative;z-index:45}
body.v15 .subsite-row{display:block;padding:10px 0 0;min-height:0}
body.v15 .subsite-title{font-size:16px;padding:0 0 9px;display:flex;align-items:center;gap:10px}
body.v15 .subsite-title:before{content:"";width:5px;height:24px;background:#7dd8ef}
body.v15.microsite-petrochemical-institute .subsite-title:before{background:#f0c46d}
body.v15 .subsite-menu{display:flex;flex-wrap:nowrap;justify-content:flex-start;gap:0;overflow-x:auto;scrollbar-width:thin;border-top:1px solid rgba(255,255,255,.14)}
body.v15 .subsite-menu a{flex:0 0 auto;padding:10px 11px 9px;border-radius:0;border-bottom:3px solid transparent}
body.v15 .subsite-menu a:hover,body.v15 .subsite-menu a.active{background:rgba(255,255,255,.10);border-bottom-color:#fff}
body.v15 .subsite-hero{padding:48px 0 46px;background:linear-gradient(100deg,#06334f,#0a6d87);color:#fff;position:relative;overflow:hidden}
body.v15 .subsite-hero.petro-site{background:linear-gradient(100deg,#4d3b22,#9a742e)}
body.v15 .subsite-hero:after{content:"";position:absolute;inset:0 0 0 58%;background:url('../images/generated/lab_corrosion.png') center/cover no-repeat;opacity:.23}
body.v15 .subsite-hero.petro-site:after{background-image:url('../images/generated/hero_main.png');opacity:.30}
body.v15 .subsite-hero .container{position:relative;z-index:1}
body.v15 .subsite-hero h1{font-size:clamp(34px,4vw,55px);line-height:1.05;color:#fff;margin:8px 0 14px;max-width:1000px}
body.v15 .subsite-hero p{font-size:16px;color:#e0eef4;max-width:850px}
body.v15 .subsite-hero .site-menu{display:none}
body.v15 .microsite-dashboard{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
body.v15 .microsite-dashboard a{display:block;border:1px solid #d4e1e9;background:#fff;padding:20px;min-height:150px;border-radius:3px;position:relative}
body.v15 .microsite-dashboard a:hover{transform:translateY(-2px);box-shadow:var(--r-shadow)}
body.v15 .microsite-dashboard small{display:block;color:#1887c9;text-transform:uppercase;letter-spacing:.08em;font-weight:900;font-size:9px;margin-bottom:8px}
body.v15 .microsite-dashboard h3{font-size:18px;color:#0a4167;margin:0 0 8px;line-height:1.2}
body.v15 .microsite-dashboard p{font-size:12px;color:#647c8d;margin:0}
body.v15 .microsite-dashboard .go{position:absolute;right:14px;bottom:10px;color:#1183ca;font-weight:900}
body.v15 .microsite-section-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
body.v15 .microsite-section-card{border:1px solid #d5e1e8;background:#fff;border-radius:3px;padding:22px;min-height:170px}
body.v15 .microsite-section-card h3{font-size:19px;color:#0a4167;margin:0 0 8px}
body.v15 .microsite-section-card p{font-size:12px;color:#60798a;margin:0 0 12px}
body.v15 .microsite-section-card a{font-size:11px;font-weight:900;color:#0c7bb8}
body.v15 .microsite-catalog{display:grid;gap:10px}
body.v15 .microsite-catalog-item{display:grid;grid-template-columns:130px minmax(0,1fr) 26px;gap:14px;align-items:center;border:1px solid #d5e1e8;background:#fff;padding:14px 16px;border-radius:3px}
body.v15 .microsite-catalog-item .type{font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:#0d7dbb;font-weight:900}
body.v15 .microsite-catalog-item h3{font-size:16px;margin:0 0 4px;color:#0b4166}
body.v15 .microsite-catalog-item p{font-size:11px;color:#6b8190;margin:0}
body.v15 .microsite-catalog-item .go{font-size:18px;color:#158bd1}
body.v15 .subsite-note{border-left:4px solid #1488cd;background:#eef6fa;padding:16px 18px;color:#526c7d;font-size:12px;margin:0 0 22px}
body.v15.microsite-petrochemical-institute .subsite-note{border-left-color:#a47a30;background:#faf6ed}

@media(max-width:1360px){body.v15 .nav a{padding-left:9px;padding-right:9px;font-size:10.5px}}
@media(max-width:1080px){body.v15 .microsite-dashboard{grid-template-columns:repeat(2,1fr)}body.v15 .microsite-section-grid{grid-template-columns:1fr 1fr}}
@media(max-width:980px){body.v15 .microsites-carousel{grid-template-columns:1fr}body.v15 .subsite-row{padding-top:8px}.subsite-title{padding-left:0!important}}
@media(max-width:620px){body.v15 .microsite-dashboard,body.v15 .microsite-section-grid{grid-template-columns:1fr}body.v15 .microsite-catalog-item{grid-template-columns:1fr 24px}.microsite-catalog-item .type{grid-column:1}.microsite-catalog-item>div:nth-child(2){grid-column:1}.microsite-catalog-item .go{grid-column:2;grid-row:1/3}.microsites-carousel-head{align-items:flex-start!important;flex-direction:column}}



.people-grid .person-photo img.official-photo,
.roster-photo img.official-photo {
  object-fit: contain !important;
  object-position: center center !important;
  width: 100% !important;
  height: 100% !important;
  background: #eef3f7;
}
.profile-photo img.official-photo {
  object-fit: contain !important;
  object-position: center center !important;
  background: #eef3f7;
}


body.v15 .brand-logo{
  width:170px;
  height:auto;
  display:block;
  flex:0 0 auto;
  object-fit:contain;
  filter: drop-shadow(0 0 2px rgba(255,255,255,.20))
          drop-shadow(0 0 8px rgba(110,190,255,.28))
          drop-shadow(0 0 18px rgba(45,140,220,.18));
}
body.v15 .masthead .brand-logo{
  filter: drop-shadow(0 0 3px rgba(255,255,255,.24))
          drop-shadow(0 0 10px rgba(110,190,255,.34))
          drop-shadow(0 0 22px rgba(45,140,220,.24));
}
body.v15 .footer .brand-logo{
  width:145px;
  filter: drop-shadow(0 0 2px rgba(255,255,255,.18))
          drop-shadow(0 0 7px rgba(110,190,255,.24))
          drop-shadow(0 0 16px rgba(45,140,220,.16));
}
@media(max-width:900px){
  body.v15 .brand-logo{width:135px}
}
@media(max-width:620px){
  body.v15 .brand-logo{width:110px}
}


body.v15 .lang a{color:inherit;text-decoration:none;opacity:.72} body.v15 .lang a:hover{opacity:1}



body.v15 .masthead-row{min-height:100px;}
body.v15 .masthead .brand{max-width:620px;overflow:hidden;}
body.v15 .masthead .brand-logo{width:170px!important;max-width:170px!important;height:auto!important;flex:0 0 170px!important;}
body.v15 .masthead .brand-copy{min-width:0;}
body.v15 .masthead .brand-copy strong{overflow-wrap:anywhere;}
body.v15 .footer .brand-logo{width:145px!important;max-width:145px!important;flex:0 0 145px!important;}
@media(max-width:900px){body.v15 .masthead .brand-logo{width:135px!important;max-width:135px!important;flex-basis:135px!important}}
@media(max-width:620px){body.v15 .masthead .brand-logo{width:110px!important;max-width:110px!important;flex-basis:110px!important}}


.material-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:20px 0}
.material-card{border:1px solid var(--line);border-radius:14px;background:#fff;padding:20px}
.material-card h3{margin:0 0 10px;color:#0b3557}.material-card p{margin:0;color:#4e6576;line-height:1.6}
.material-list{display:grid;gap:10px;margin:14px 0}.material-list>div{border:1px solid var(--line);border-radius:10px;padding:14px;background:#fff}
.material-list strong{display:block;color:#0b3557;margin-bottom:5px}.material-list small{display:block;color:#667f91;line-height:1.45}
.person-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:18px 0}
.person-card{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden}.person-card img{width:100%;height:240px;object-fit:cover;background:#eef3f7}.person-card .pc-body{padding:16px}.person-card h3{font-size:18px;margin:0 0 6px}.person-card p{font-size:14px;color:#5d7485;line-height:1.55;margin:0 0 8px}.person-card a{text-decoration:none}
.table-wrap{overflow:auto;margin:16px 0}.data-table{width:100%;border-collapse:collapse;font-size:14px;background:#fff}.data-table th,.data-table td{border:1px solid #d9e3ea;padding:10px 12px;vertical-align:top;text-align:left}.data-table th{background:#eef5f9;color:#0b3557}
.news-note{border-left:4px solid #1388c9;background:#f1f8fc;padding:16px 18px;margin:18px 0;border-radius:0 10px 10px 0}
.photo-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.photo-gallery figure{margin:0;border-radius:12px;overflow:hidden;background:#fff;border:1px solid var(--line)}.photo-gallery img{width:100%;height:240px;object-fit:cover;display:block}.photo-gallery figcaption{padding:10px 12px;font-size:13px;color:#597084}
@media(max-width:900px){.person-cards,.photo-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}.material-grid{grid-template-columns:1fr}}
@media(max-width:620px){.person-cards,.photo-gallery{grid-template-columns:1fr}}


body.v15 .partner-strip{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:0;background:#fff;border:1px solid #d8e2ea}
body.v15 .partner-logo{min-height:94px;display:flex;align-items:center;justify-content:center;gap:8px;padding:12px;border-right:1px solid #d8e2ea;text-decoration:none;overflow:hidden}
body.v15 .partner-logo:last-child{border-right:0}
body.v15 .partner-logo img{display:block;max-width:120px;max-height:56px;width:auto;height:auto;object-fit:contain}
body.v15 .partner-logo span{display:none}
@media(max-width:980px){body.v15 .partner-strip{grid-template-columns:repeat(3,1fr)}}
@media(max-width:620px){body.v15 .partner-strip{grid-template-columns:repeat(2,1fr)}body.v15 .partner-logo{min-height:82px}}



body.v15 .partner-strip{display:grid!important;grid-template-columns:repeat(6,minmax(0,1fr))!important;gap:0!important;align-items:stretch!important;background:#fff!important;border:1px solid #d8e2ea!important;overflow:hidden!important}
body.v15 .partner-logo{height:112px!important;min-height:112px!important;max-height:112px!important;display:flex!important;align-items:center!important;justify-content:center!important;padding:14px 18px!important;overflow:hidden!important;text-decoration:none!important;box-sizing:border-box!important}
body.v15 .partner-logo img{display:block!important;width:auto!important;height:auto!important;max-width:150px!important;max-height:62px!important;object-fit:contain!important;margin:0 auto!important}
body.v15 .partner-logo span{display:none!important}
@media(max-width:980px){body.v15 .partner-strip{grid-template-columns:repeat(3,1fr)!important}body.v15 .partner-logo{height:104px!important;min-height:104px!important}}
@media(max-width:620px){body.v15 .partner-strip{grid-template-columns:repeat(2,1fr)!important}body.v15 .partner-logo{height:92px!important;min-height:92px!important}body.v15 .partner-logo img{max-width:125px!important;max-height:52px!important}}
.flagship-wrap{display:grid;grid-template-columns:1.45fr .8fr .8fr;gap:18px}
.flagship-main,.flagship-side{position:relative;overflow:hidden;border-radius:18px;min-height:280px;text-decoration:none;display:flex;flex-direction:column;justify-content:flex-end;padding:28px;color:#fff;background:#073b60;box-shadow:0 12px 34px rgba(11,49,77,.16)}
.flagship-main{min-height:370px;background:linear-gradient(180deg,rgba(3,35,58,.12),rgba(3,35,58,.94)),url('../images/generated/lab_reactors.png') center/cover no-repeat}
.flagship-main:after,.flagship-side:after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,transparent 35%,rgba(25,153,224,.16));pointer-events:none}
.flagship-main>* ,.flagship-side>*{position:relative;z-index:1}
.flagship-kicker{font-size:11px;letter-spacing:.12em;text-transform:uppercase;font-weight:800;color:#8ed7ff;margin-bottom:10px}
.flagship-main h3,.flagship-side h3{font-size:30px;line-height:1.08;margin:0 0 12px;color:#fff}.flagship-side h3{font-size:23px}
.flagship-main p,.flagship-side p{margin:0 0 14px;color:#d8ebf6;max-width:720px}.flagship-arrow{font-weight:800;color:#fff}
.flagship-side.ecology{background:linear-gradient(160deg,#0b5264,#0a2e49)}
.flagship-side.nnh{background:linear-gradient(160deg,#684318,#243c54)}
.impact-chain{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid #d9e6ee;border-radius:16px;overflow:hidden;background:#fff}
.impact-step{padding:24px;border-right:1px solid #d9e6ee}.impact-step:last-child{border-right:0}.impact-step b{display:block;font-size:28px;color:#168fd0;margin-bottom:8px}.impact-step h3{font-size:18px;margin:0 0 7px}.impact-step p{margin:0;color:#526676;font-size:14px}
.page-feature{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}.page-feature-card{background:#fff;border:1px solid #d8e4ec;border-radius:16px;padding:24px}.page-feature-visual{border-radius:16px;background:linear-gradient(160deg,#0b5264,#092c48);padding:28px;color:#fff;display:flex;flex-direction:column;justify-content:flex-end;min-height:260px}.page-feature-visual h2{color:#fff;margin:0 0 10px}.page-feature-visual p{color:#d9edf7}
.project-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:22px}.project-fact{border:1px solid #d8e4ec;border-radius:12px;padding:16px;background:#fff}.project-fact small{display:block;color:#6b8190;margin-bottom:5px}.project-fact strong{font-size:18px;color:#0c4267}
.orp-hero-row{display:grid;grid-template-columns:150px 1fr;gap:24px;align-items:center}.orp-hero-logo{width:150px;height:150px;object-fit:contain;border-radius:14px;background:#fff;padding:8px;box-shadow:0 10px 28px rgba(0,0,0,.12)}
.nnh-focus{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.nnh-focus a{display:block;padding:18px;background:#fff;border:1px solid #d8e2ea;border-radius:12px;text-decoration:none}.nnh-focus a b{display:block;color:#0a4c76;margin-bottom:7px}.nnh-focus a span{font-size:13px;color:#536979}
@media(max-width:1050px){.flagship-wrap{grid-template-columns:1fr 1fr}.flagship-main{grid-column:1/-1}.project-facts,.impact-chain{grid-template-columns:1fr 1fr}.nnh-focus{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.flagship-wrap,.page-feature{grid-template-columns:1fr}.project-facts,.impact-chain,.nnh-focus{grid-template-columns:1fr}.impact-step{border-right:0;border-bottom:1px solid #d9e6ee}.impact-step:last-child{border-bottom:0}.orp-hero-row{grid-template-columns:1fr}.orp-hero-logo{width:110px;height:110px}}


.person-img.official-photo,.profile-img.official-photo,.roster-photo img.official-photo{object-fit:cover;object-position:center top;}



body.v15 .topbar{position:sticky;top:0;z-index:1200;background:#f3f8fb;box-shadow:0 1px 0 rgba(12,68,103,.10)}
body.v15 .topbar .lang{white-space:nowrap}
body.v15 .subsite-hero.petro-site{padding:34px 0 38px;min-height:0;background:linear-gradient(105deg,#4d3b22,#8a682d)}
body.v15 .subsite-hero.petro-site:after{display:none}
body.v15 .petro-hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);gap:30px;align-items:stretch}
body.v15 .petro-hero-copy{display:flex;flex-direction:column;justify-content:center;min-width:0}
body.v15 .petro-hero-copy .breadcrumbs{margin-bottom:14px}
body.v15 .petro-hero-copy .eyebrow{margin-bottom:8px}
body.v15 .petro-hero-copy .orp-hero-logo{width:112px;height:112px;margin:0 0 12px}
body.v15 .petro-hero-copy h1{font-size:clamp(34px,3.4vw,56px);line-height:1.02;margin:0 0 12px;max-width:900px}
body.v15 .petro-hero-copy p{margin:0;max-width:820px}
body.v15 .petro-hero-gallery{display:grid;grid-template-columns:1.25fr .75fr;grid-template-rows:1fr 1fr;gap:8px;min-height:330px;max-height:390px}
body.v15 .petro-hero-gallery img{width:100%;height:100%;object-fit:cover;display:block;border-radius:12px;filter:saturate(.92) contrast(1.03)}
body.v15 .petro-hero-gallery .petro-wide{grid-row:1/3}
body.v15 #flagship-initiatives .flagship-wrap{grid-template-columns:1fr 1fr}
body.v15 #flagship-initiatives .flagship-side{min-height:245px}
@media(max-width:900px){body.v15 .petro-hero-grid{grid-template-columns:1fr}body.v15 .petro-hero-gallery{min-height:280px;max-height:320px}}
@media(max-width:620px){body.v15 .petro-hero-gallery{grid-template-columns:1fr 1fr;grid-template-rows:180px 120px;min-height:0}body.v15 .petro-hero-gallery .petro-wide{grid-column:1/3;grid-row:auto}body.v15 .petro-hero-copy h1{font-size:34px}}


@media(min-width:901px){
  body.v15 .topbar{position:sticky!important;top:0!important;z-index:1300!important}
  body.v15 > .header{display:contents!important}
  body.v15 .masthead{position:sticky!important;top:34px!important;z-index:1250!important;background:#fff!important;box-shadow:0 1px 0 rgba(4,50,83,.10)!important}
  body.v15 .primary-nav{position:relative!important;z-index:80!important}
  body.v15 .masthead-row{min-height:82px!important}
}
body.v15 .page-hero{padding:28px 0 30px!important}
body.v15 .page-hero .breadcrumbs{margin-bottom:12px!important}
body.v15 .page-hero .hero-kicker{margin-bottom:8px!important}
body.v15 .page-hero h1{font-size:clamp(32px,3.2vw,48px)!important;line-height:1.04!important;margin-bottom:10px!important;max-width:920px!important}
body.v15 .page-hero p{font-size:15px!important;line-height:1.45!important;max-width:850px!important}
body.v15 .page-hero .quick-stats{margin-top:18px!important;gap:10px!important}
body.v15 .page-hero .quick-stat{padding:13px 16px!important;min-height:68px!important}
body.v15 .page-hero .quick-stat strong{font-size:22px!important}
body.v15 .page-hero .quick-stat span{font-size:11px!important}
@media(max-width:900px){
 body.v15 .page-hero{padding:24px 0 26px!important}
 body.v15 .page-hero h1{font-size:34px!important}
}


body.v15 .page-hero{
  background:linear-gradient(105deg,#eaf5fa 0%,#d9edf6 55%,#c4e2ef 100%)!important;
  color:#0b3557!important;
  border-bottom:1px solid #b9d5e2!important;
}
body.v15 .page-hero:after{
  opacity:.10!important;
  mix-blend-mode:multiply!important;
  filter:saturate(.65) contrast(.9)!important;
}
body.v15 .page-hero h1{color:#083d63!important}
body.v15 .page-hero p{color:#385d73!important}
body.v15 .page-hero .breadcrumbs,
body.v15 .page-hero .breadcrumbs a{color:#53778c!important}
body.v15 .page-hero .hero-kicker{color:#0b6f96!important}
body.v15 .page-hero .quick-stat{
  background:rgba(255,255,255,.88)!important;
  border:1px solid #bdd7e3!important;
  box-shadow:0 3px 12px rgba(25,82,112,.06)!important;
}
body.v15 .page-hero .quick-stat strong{color:#0a5b88!important}
body.v15 .page-hero .quick-stat span{color:#647e8e!important}


@media(min-width:901px){
  body.v15 .primary-nav{
    position:sticky!important;
    top:116px!important;
    z-index:1240!important;
    box-shadow:0 2px 8px rgba(4,39,68,.10)!important;
  }
}


body.v15 .nav a.nav-special-center,
body.v15 .nav a[href*="corrosion-center"]{background:#8a672c!important;color:#fff!important}
body.v15 .nav a.nav-special-center:hover,
body.v15 .nav a[href*="corrosion-center"]:hover{background:#74531d!important}
body.v15 .nav a.nav-special-petro{background:#0b6f88!important;color:#fff!important}


.ifce-people{display:grid;grid-template-columns:repeat(auto-fit,minmax(245px,1fr));gap:16px;margin:20px 0}.ifce-person{padding:20px;background:#f4f9fc;border:1px solid #d7e6ed;border-radius:8px}.ifce-person h3{font-size:17px;line-height:1.4;margin:0 0 8px;color:#073d61}.ifce-person p{margin:0 0 12px;color:#47677a}.ifce-person a{overflow-wrap:anywhere;color:#096da4}.ifce-source{margin-top:20px;font-size:13px;color:#557082}

/* Legacy content archive */
.legacy-archive{padding:38px 0 70px}.legacy-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.legacy-card{background:#fff;border:1px solid #dbe6ee;border-radius:12px;padding:18px;text-decoration:none;color:#103d5d;box-shadow:0 5px 16px rgba(15,62,91,.06)}.legacy-card:hover{transform:translateY(-1px)}.legacy-card small{display:block;color:#6c8393;margin-bottom:6px}.legacy-content{background:#fff;border:1px solid #dbe6ee;border-radius:14px;padding:28px;line-height:1.65}.legacy-content img{max-width:100%;height:auto}.legacy-content table{max-width:100%;overflow:auto}.legacy-content a{overflow-wrap:anywhere}@media(max-width:760px){.legacy-list{grid-template-columns:1fr}.legacy-content{padding:18px}}

/* Final public palette: light main site, brown Corrosion Center, light turquoise NII NNH */
body.v15.home-page .home-hero{background:#eaf5fa!important;color:#073d61!important}
body.v15.home-page .home-hero-bg{background:linear-gradient(90deg,rgba(239,248,252,.98) 0%,rgba(229,243,249,.94) 54%,rgba(221,239,247,.82) 100%),url('../images/generated/lab_reactors.png') center/cover no-repeat!important;opacity:1!important}
body.v15.home-page .home-hero-copy h1{color:#073d61!important;text-shadow:none!important}
body.v15.home-page .home-hero-copy p{color:#355f78!important;text-shadow:none!important}
body.v15.home-page .home-hero-kicker{color:#0b7895!important;text-shadow:none!important}
body.v15.home-page .hero-stat{border-color:rgba(8,77,112,.18)!important}
body.v15.home-page .hero-stat strong{color:#075b82!important;text-shadow:none!important}
body.v15.home-page .hero-stat span{color:#496f83!important;text-shadow:none!important}

body.v15.section-corrosion-center .subsite-bar{background:#8a672c!important;color:#fff!important}
body.v15.section-corrosion-center .subsite-title:before{background:#d7b56b!important}
body.v15.section-corrosion-center .subsite-hero{background:linear-gradient(105deg,#5f431d 0%,#846126 58%,#a47b32 100%)!important;color:#fff!important}
body.v15.section-corrosion-center .subsite-hero:after{opacity:.13!important}
body.v15.section-corrosion-center .subsite-hero h1,body.v15.section-corrosion-center .subsite-hero p,body.v15.section-corrosion-center .subsite-hero .breadcrumbs,body.v15.section-corrosion-center .subsite-hero .breadcrumbs a,body.v15.section-corrosion-center .subsite-hero .eyebrow{color:#fff!important}
body.v15.section-corrosion-center .subnav a.active{color:#79571f!important;border-bottom-color:#8a672c!important}
body.v15.section-corrosion-center .eyebrow{color:#8a672c!important}
body.v15.section-corrosion-center .eyebrow:before{background:#8a672c!important}

body.v15.microsite-petrochemical-institute .subsite-bar{background:#7dcbd0!important;color:#073d4a!important}
body.v15.microsite-petrochemical-institute .subsite-title,body.v15.microsite-petrochemical-institute .subsite-bar a{color:#073d4a!important}
body.v15.microsite-petrochemical-institute .subsite-title:before{background:#167f8c!important}
body.v15.microsite-petrochemical-institute .subsite-hero.petro-site{background:linear-gradient(105deg,#dff5f5 0%,#bfe9eb 58%,#9fdde1 100%)!important;color:#073d4a!important}
body.v15.microsite-petrochemical-institute .subsite-hero.petro-site h1,body.v15.microsite-petrochemical-institute .subsite-hero.petro-site p,body.v15.microsite-petrochemical-institute .subsite-hero.petro-site .breadcrumbs,body.v15.microsite-petrochemical-institute .subsite-hero.petro-site .breadcrumbs a,body.v15.microsite-petrochemical-institute .subsite-hero.petro-site .eyebrow{color:#073d4a!important}
body.v15.microsite-petrochemical-institute .subsite-note{background:#e8f8f8!important;border-left-color:#49aeb7!important}
body.v15 .nav a.nav-special-petro{background:#7dcbd0!important;color:#073d4a!important}
body.v15 .nav a.nav-special-petro:hover{background:#68bcc3!important;color:#073d4a!important}

/* ORP institute information */
.orp-expanded{background:#f3fbfc;color:#163a4b;padding:55px 0}.orp-expanded h2{color:#086b79;margin:30px 0 18px}.orp-expanded .orp-lead{max-width:1050px;font-size:1.13rem;line-height:1.7}.orp-facts{display:grid;grid-template-columns:1fr 1fr;gap:18px}.orp-facts article{background:white;padding:24px;border-radius:14px;border:1px solid #cce6e9}.orp-facts h3{color:#096d78}.orp-focus{display:grid;grid-template-columns:1fr 1fr;gap:12px 30px;line-height:1.6}.orp-photos{display:grid;grid-template-columns:1fr 1fr 0.7fr;gap:14px}.orp-photos img{width:100%;height:265px;object-fit:cover;border-radius:14px}.orp-docs{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.orp-docs a{background:#fff;border:1px solid #b7e0e3;border-radius:10px;padding:15px 20px;color:#096977;text-decoration:none}@media(max-width:700px){.orp-facts,.orp-focus,.orp-docs{grid-template-columns:1fr}.orp-photos{grid-template-columns:1fr 1fr}.orp-photos img{height:180px}}

/* Modern compact navigation */
body.v15 .primary-nav{background:linear-gradient(90deg,#063a5d,#07547a)!important}
body.v15 .primary-nav-row{min-height:48px!important;gap:10px!important}
body.v15 .nav-modern{display:flex;align-items:stretch;gap:2px;min-width:0}
body.v15 .nav-modern>a,body.v15 .nav-group-toggle{position:relative;display:flex;align-items:center;gap:5px;min-height:48px;padding:0 10px;border:0;background:transparent;color:#fff;font:inherit;font-size:13px;font-weight:650;text-decoration:none;white-space:nowrap;cursor:pointer}
body.v15 .nav-modern>a:not(.nav-special-petro):not(.nav-special-center):after,body.v15 .nav-group-toggle:after{content:"";position:absolute;left:10px;right:10px;bottom:0;height:2px;background:#8fd5ed;transform:scaleX(0);transform-origin:center;transition:transform .2s ease}
body.v15 .nav-modern>a:hover:after,body.v15 .nav-group:hover>.nav-group-toggle:after{transform:scaleX(1)}
body.v15 .nav-modern>a:hover,body.v15 .nav-group-toggle:hover{background:rgba(255,255,255,.07)}
body.v15 .nav-group{position:relative;display:flex}
body.v15 .nav-chevron{font-size:12px;opacity:.8;transition:transform .2s ease}
body.v15 .nav-group:hover .nav-chevron{transform:rotate(180deg)}
body.v15 .nav-dropdown{position:absolute;top:calc(100% - 1px);left:0;min-width:245px;padding:8px;background:#fff;border:1px solid #d5e3eb;border-radius:0 0 10px 10px;box-shadow:0 14px 32px rgba(4,42,67,.18);opacity:0;visibility:hidden;transform:translateY(6px);transition:.18s ease;z-index:1400}
body.v15 .nav-group:hover>.nav-dropdown,body.v15 .nav-group.open>.nav-dropdown{opacity:1;visibility:visible;transform:translateY(0)}
body.v15 .nav-dropdown a{display:block;padding:10px 12px;border-radius:7px;color:#123f5b!important;text-decoration:none;font-size:13px;line-height:1.25;background:transparent!important}
body.v15 .nav-dropdown a:hover{background:#edf6fa!important;color:#075b82!important}
body.v15 .nav-modern>a.nav-special-petro{align-self:center;min-height:36px;margin:6px 2px;border-radius:7px;background:#7dcbd0!important;color:#073d4a!important;padding:0 12px}
body.v15 .nav-modern>a.nav-special-center{align-self:center;min-height:36px;margin:6px 2px;border-radius:7px;background:#8a672c!important;color:#fff!important;padding:0 12px}
body.v15 .contact-cta{display:none!important}
@media(max-width:1100px){body.v15 .nav-modern>a,body.v15 .nav-group-toggle{padding-left:8px;padding-right:8px;font-size:12px}}
@media(max-width:900px){body.v15 .nav-modern{display:none;position:absolute;left:0;right:0;top:100%;background:#073f63;padding:8px 12px 14px;box-shadow:0 12px 25px rgba(0,0,0,.18);max-height:72vh;overflow:auto}body.v15 .nav-modern.open{display:block}body.v15 .nav-group{display:block}body.v15 .nav-modern>a,body.v15 .nav-group-toggle{width:100%;min-height:44px;padding:0 10px;justify-content:space-between}body.v15 .nav-dropdown{position:static;display:none;min-width:0;padding:0 0 6px 12px;border:0;border-radius:0;box-shadow:none;background:rgba(255,255,255,.05);opacity:1;visibility:visible;transform:none}body.v15 .nav-group.open>.nav-dropdown{display:block}body.v15 .nav-dropdown a{color:#fff!important;background:transparent!important}body.v15 .nav-dropdown a:hover{background:rgba(255,255,255,.08)!important;color:#fff!important}body.v15 .nav-modern>a.nav-special-petro,body.v15 .nav-modern>a.nav-special-center{margin:4px 0;min-height:42px}}

/* v8 luminous navigation interaction */
body.v15 .nav-modern>a,body.v15 .nav-group-toggle{overflow:hidden;isolation:isolate;transition:background .22s ease,text-shadow .22s ease,transform .16s ease}
body.v15 .nav-modern>a:not(.nav-special-petro):not(.nav-special-center):before,body.v15 .nav-group-toggle:before{content:"";position:absolute;top:-35%;bottom:-35%;left:-42%;width:30%;background:linear-gradient(105deg,transparent 0%,rgba(255,255,255,.06) 25%,rgba(210,245,255,.7) 50%,rgba(255,255,255,.06) 75%,transparent 100%);transform:skewX(-18deg);opacity:0;pointer-events:none}
body.v15 .nav-modern>a:hover:not(.nav-special-petro):not(.nav-special-center):before,body.v15 .nav-group-toggle:hover:before{animation:navShimmer .62s ease-out}
body.v15 .nav-modern>a:hover,body.v15 .nav-group-toggle:hover{text-shadow:0 0 9px rgba(177,231,255,.5)}
@keyframes navShimmer{0%{left:-42%;opacity:0}18%{opacity:.9}100%{left:116%;opacity:0}}
.nav-spark{position:fixed;z-index:9999;width:4px;height:4px;border-radius:50%;background:#dff8ff;box-shadow:0 0 7px #9eeaff;pointer-events:none;animation:navSpark .32s ease-out forwards}
.nav-spark.petro{background:#c9ffff;box-shadow:0 0 7px #69d9de}.nav-spark.corrosion{background:#ffe1a2;box-shadow:0 0 7px #d7a44a}
@keyframes navSpark{0%{opacity:1;transform:translate(0,0) scale(1)}100%{opacity:0;transform:translate(var(--dx),var(--dy)) scale(.15)}}
@media(prefers-reduced-motion:reduce){body.v15 .nav-modern>a:before,body.v15 .nav-group-toggle:before{display:none!important}.nav-spark{display:none!important}}

.admin-login-link{display:none!important}