:root{--navy:#003859;--navy-2:#00283f;--orange:#ff8000;--orange-2:#e66f00;--ink:#122631;--muted:#5f6f78;--line:#d8e1e6;--soft:#f2f6f8;--white:#fff;--radius:3px;--shadow:0 18px 50px rgba(0,40,63,.12);--shell:min(1180px,calc(100% - 40px));font-family:Montserrat,"Segoe UI",Arial,sans-serif;color:var(--ink);background:#fff;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-size:16px;line-height:1.65}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}svg{width:1.15em;height:1.15em;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.shell{width:var(--shell);margin-inline:auto}.skip{position:fixed;left:16px;top:-100px;background:var(--orange);color:#101010;padding:10px 16px;z-index:1000;font-weight:700}.skip:focus{top:16px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.utility{background:var(--navy-2);color:#eaf3f6;font-size:.78rem}.utility-inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:20px}.utility-inner div{display:flex;gap:14px}.utility a:hover{text-decoration:underline}.site-header{background:#fff;position:relative;z-index:20;border-bottom:1px solid var(--line)}.nav-row{min-height:92px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:17px}.brand img{width:218px}.brand>span{display:block;border-left:1px solid var(--line);padding-left:17px;color:var(--navy);line-height:1}.brand strong{font-size:1.05rem;letter-spacing:.1em}.brand small{display:block;margin-top:8px;color:var(--muted);font-size:.68rem;text-transform:uppercase;letter-spacing:.12em}.site-header nav{display:flex;align-items:center;gap:24px;color:var(--navy);font-size:.9rem;font-weight:650}.site-header nav>a,.nav-group>button{position:relative;padding:13px 0}.site-header nav>a:not(.nav-cta)::after,.nav-group>button::after{content:"";position:absolute;left:0;right:100%;bottom:5px;height:2px;background:var(--orange);transition:.2s}.site-header nav>a:hover::after,.site-header nav>a:focus-visible::after,.nav-group>button:hover::after,.nav-group>button:focus-visible::after,.nav-group.open>button::after{right:0}.nav-group{position:relative}.nav-group>button{display:flex;align-items:center;gap:5px;background:none;border:0;color:var(--navy);font-weight:650;cursor:pointer}.nav-group>button svg{width:15px;height:15px;transition:transform .2s}.nav-group.open>button svg{transform:rotate(180deg)}.nav-dropdown{position:absolute;top:calc(100% + 15px);left:-22px;width:250px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--orange);padding:10px;box-shadow:0 18px 45px rgba(0,40,63,.16);opacity:0;visibility:hidden;transform:translateY(-6px);transition:.18s;z-index:30}.nav-dropdown::before{content:"";position:absolute;left:0;right:0;top:-18px;height:18px}.nav-group.open .nav-dropdown{opacity:1;visibility:visible;transform:none}.nav-dropdown a{display:block;padding:10px 12px;border-radius:2px;color:var(--navy);font-size:.84rem}.nav-dropdown a:hover,.nav-dropdown a:focus-visible{background:var(--soft);color:var(--orange-2)}.nav-dropdown .dropdown-lead{background:var(--navy);color:#fff;margin-bottom:7px;padding:14px}.nav-dropdown .dropdown-lead:hover,.nav-dropdown .dropdown-lead:focus-visible{background:var(--navy-2);color:#fff}.dropdown-lead strong,.dropdown-lead span{display:block}.dropdown-lead span{margin-top:3px;color:#c8d7de;font-size:.72rem;font-weight:500}.nav-cta,.button{display:inline-flex!important;align-items:center;justify-content:center;gap:10px;background:var(--orange);color:#151515!important;padding:13px 18px!important;font-weight:750;border:0;border-radius:var(--radius);transition:.2s}.nav-cta:hover,.button:hover{background:var(--orange-2);transform:translateY(-1px)}.nav-toggle{display:none;background:none;border:0;color:var(--navy);padding:10px}.nav-toggle svg{width:28px;height:28px}.nav-close{display:none}
@media(min-width:1025px){.nav-group:hover .nav-dropdown,.nav-group:focus-within .nav-dropdown{opacity:1;visibility:visible;transform:none}}
.nav-group>summary{list-style:none;display:flex;align-items:center;gap:5px;position:relative;padding:13px 0;background:none;border:0;color:var(--navy);font-weight:650;cursor:pointer}.nav-group>summary::-webkit-details-marker{display:none}.nav-group>summary::after{content:"";position:absolute;left:0;right:100%;bottom:5px;height:2px;background:var(--orange);transition:.2s}.nav-group>summary:hover::after,.nav-group>summary:focus-visible::after,.nav-group[open]>summary::after{right:0}.nav-group>summary svg{width:15px;height:15px;transition:transform .2s}.nav-group[open]>summary svg{transform:rotate(180deg)}.nav-group[open] .nav-dropdown{opacity:1;visibility:visible;transform:none}
.breadcrumb-bar{background:#f7f9fa;border-bottom:1px solid var(--line)}.breadcrumbs{min-height:48px;display:flex;align-items:center}.breadcrumbs ol{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0;color:var(--muted);font-size:.78rem;white-space:nowrap;overflow:hidden}.breadcrumbs li{display:flex;align-items:center;min-width:0}.breadcrumbs li+li::before{content:"";width:6px;height:6px;border-top:1px solid #93a3ab;border-right:1px solid #93a3ab;transform:rotate(45deg);margin:0 13px 0 11px;flex:none}.breadcrumbs a{display:flex;align-items:center;gap:6px;color:var(--navy);font-weight:650}.breadcrumbs a:hover{color:var(--orange-2)}.breadcrumb-home svg{width:15px;height:15px}.breadcrumbs [aria-current="page"]{overflow:hidden;text-overflow:ellipsis;color:#6b7a82}
.eyebrow{display:block;color:var(--orange-2);font-size:.73rem;font-weight:800;letter-spacing:.15em;text-transform:uppercase;margin-bottom:16px}.eyebrow.light{color:#ffad5a}h1,h2,h3{font-family:"Trebuchet MS",Montserrat,sans-serif;color:var(--navy);line-height:1.1;margin:0 0 20px}h1{font-size:clamp(2.65rem,6vw,5.4rem);letter-spacing:-.045em}h2{font-size:clamp(2rem,4vw,3.35rem);letter-spacing:-.03em}h3{font-size:1.35rem}p{margin:0 0 1.2em;color:var(--muted)}.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--navy);font-weight:750;border-bottom:2px solid var(--orange);padding-bottom:3px}.text-link.light{color:#fff}.button.white{background:#fff;color:var(--navy)!important}.button.white:hover{background:#eef5f7}
.hero{background:linear-gradient(120deg,#f5f8fa 0,#fff 58%);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;min-height:690px;align-items:stretch}.hero-copy{padding:88px 60px 65px 0;align-self:center}.hero-copy h1{max-width:760px}.hero-copy>p{font-size:1.16rem;max-width:680px}.hero-actions{display:flex;align-items:center;gap:26px;margin:34px 0 55px}.hero-media{margin:0;position:relative;min-width:0}.hero-media>img{width:100%;height:100%;object-fit:cover;filter:saturate(.72) contrast(1.04)}.hero-media:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,56,89,.1),transparent 35%)}.hero-media figcaption{position:absolute;z-index:2;left:-40px;bottom:35px;width:min(360px,calc(100% - 20px));background:var(--navy);color:#fff;padding:24px 28px;box-shadow:var(--shadow)}.hero-media figcaption span{float:left;margin:4px 15px 25px 0;color:var(--orange)}.hero-media figcaption strong,.hero-media figcaption small{display:block}.hero-media figcaption small{margin-top:5px;color:#cddbe2}.hero-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:0}.hero-facts div{border-left:2px solid var(--orange);padding-left:14px}.hero-facts dt{font-size:1.3rem;color:var(--navy);font-weight:800}.hero-facts dd{margin:4px 0 0;color:var(--muted);font-size:.75rem;line-height:1.4}
.intro{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px;padding-block:110px}.intro h2{max-width:470px}.intro>div:last-child{columns:2;column-gap:40px}.product-section{padding:105px 0;background:var(--soft)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:42px}.section-head h2{max-width:730px}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.product-card{background:#fff;box-shadow:0 1px 0 var(--line);transition:.25s}.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.card-image{aspect-ratio:4/3;overflow:hidden;position:relative}.card-image img{width:100%;height:100%;object-fit:cover;transition:.4s}.product-card:hover .card-image img{transform:scale(1.035)}.card-image span{position:absolute;right:0;bottom:0;background:var(--orange);color:#172027;padding:8px 13px;font-size:.75rem;font-weight:800}.card-body{padding:25px 25px 28px}.card-body h2,.card-body h3{margin-bottom:12px}.card-body p{font-size:.91rem}.card-link{display:flex;align-items:center;gap:8px;color:var(--navy);font-weight:750;font-size:.83rem}.data-band,.technical-panel{background:var(--navy);color:#fff;padding:95px 0}.data-band h2,.data-band p,.technical-panel h2{color:#fff}.data-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:85px;align-items:center}.identity-grid{display:grid;grid-template-columns:1fr 1fr;border:1px solid rgba(255,255,255,.25)}.identity-grid div{padding:24px 28px;border:1px solid rgba(255,255,255,.14)}.identity-grid span,.identity-grid strong{display:block}.identity-grid span{color:#aac0ca;font-size:.73rem;text-transform:uppercase;letter-spacing:.15em}.identity-grid strong{font-size:1.65rem;margin-top:8px}.applications{padding-block:110px}.application-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line)}.application-grid article{padding:32px;border-right:1px solid var(--line)}.application-grid article:last-child{border:0}.application-grid article>span{color:var(--orange-2);display:block;margin-bottom:45px}.application-grid svg{width:28px;height:28px}.application-grid p{font-size:.9rem}.cta{background:var(--orange)}.cta-inner{padding-block:65px;display:flex;align-items:center;justify-content:space-between;gap:50px}.cta h2,.cta p{color:#122631}.cta p{margin:0;max-width:670px}.cta-actions{display:flex;align-items:center;gap:24px;flex:none}
.page-hero{background:linear-gradient(125deg,var(--navy) 0,var(--navy) 69%,#004a70 69%);color:#fff;padding:92px 0 100px;position:relative;overflow:hidden}.page-hero:after{content:"310S";position:absolute;right:2vw;top:50%;transform:translateY(-50%);font-size:12rem;font-weight:900;letter-spacing:-.08em;color:rgba(255,255,255,.035)}.page-hero h1,.page-hero p{color:#fff;max-width:900px;position:relative;z-index:1}.page-hero h1{font-size:clamp(2.7rem,5vw,4.8rem)}.page-hero p{font-size:1.13rem;max-width:710px}.listing{padding-block:95px}.product-detail{padding-block:100px;display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.detail-media{position:relative}.detail-media:before{content:"";position:absolute;left:-18px;bottom:-18px;width:45%;height:45%;background:var(--orange);z-index:-1}.detail-media img{width:100%;aspect-ratio:4/3;object-fit:cover}.detail-copy>p{font-size:1.05rem}.check-list{list-style:none;padding:0;margin:30px 0;display:grid;gap:13px}.check-list li{display:flex;align-items:flex-start;gap:12px}.check-list svg{color:var(--orange-2);flex:none;margin-top:5px}.two-col{display:grid;grid-template-columns:.8fr 1.2fr;gap:100px}.spec-list{border-top:1px solid rgba(255,255,255,.25)}.spec-list div{display:grid;grid-template-columns:.55fr 1.45fr;gap:25px;padding:20px 0;border-bottom:1px solid rgba(255,255,255,.18)}.spec-list strong{color:#ffb66f}.spec-list span{color:#fff}.spec-list a{text-decoration:underline}
.technical-content{padding-block:90px}.note{padding:25px 30px;border-left:4px solid var(--orange);background:var(--soft);margin-bottom:70px}.note p{margin:5px 0 0}.note.warning{background:#fff4e8}.table-block{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;margin-bottom:90px}.table-wrap{overflow:auto;border:1px solid var(--line)}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:14px 17px;border-bottom:1px solid var(--line)}th{background:var(--navy);color:#fff;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}tr:last-child td{border-bottom:0}.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);margin-bottom:60px}.content-grid article{background:#fff;padding:36px}.content-grid h2{font-size:1.5rem}.source-note{background:var(--navy);padding:32px;color:#fff}.source-note h2,.source-note p{color:#fff}.source-note p:last-child{margin:0}.standards-list{border-top:1px solid var(--line)}.standards-list article{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;padding:32px 0;border-bottom:1px solid var(--line);align-items:start}.standards-list span{font-size:.72rem;text-transform:uppercase;color:var(--orange-2);font-weight:800}.standards-list h2{font-size:1.6rem;margin:8px 0 0}.standards-list p{margin:0}.editorial{max-width:820px;padding:80px 0}.editorial h2{font-size:2.3rem}.retired{padding-block:90px}.resource-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;padding-block:90px}.resource-grid>a{border:1px solid var(--line);padding:38px;transition:.2s}.resource-grid>a:hover{border-color:var(--orange);box-shadow:var(--shadow);transform:translateY(-3px)}.resource-grid>a>span{display:block;color:var(--orange-2);margin-bottom:40px}.resource-grid>a>span svg{width:30px;height:30px}.resource-grid h2{font-size:1.7rem}.resource-grid b{display:flex;align-items:center;gap:8px;color:var(--navy);font-size:.83rem}
.calculator-wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:30px;padding-block:90px;align-items:stretch}.calculator{border:1px solid var(--line);padding:35px}.calc-fields,.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:25px}label{display:grid;gap:8px;color:var(--navy);font-size:.82rem;font-weight:750}input,select,textarea{width:100%;border:1px solid #aebdc4;background:#fff;color:var(--ink);padding:12px 13px;border-radius:2px}input:focus,select:focus,textarea:focus{outline:3px solid rgba(255,128,0,.25);border-color:var(--orange-2)}.form-error{color:#9c2c18;font-weight:700;font-size:.85rem;margin:12px 0 0}.result{background:var(--navy);color:#fff;padding:40px;display:flex;flex-direction:column;justify-content:center}.result span,.result strong,.result small{display:block}.result span{color:#aac0ca;text-transform:uppercase;letter-spacing:.12em;font-size:.75rem}.result strong{font-size:3.2rem;line-height:1.1;margin:16px 0;color:#fff}.result small{color:#cbd9df}.faq-list{max-width:900px;padding-block:90px}.faq-list details{border-top:1px solid var(--line)}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{list-style:none;padding:25px 0;font-size:1.12rem;font-weight:750;color:var(--navy);display:flex;justify-content:space-between;gap:20px;cursor:pointer}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary span{color:var(--orange-2);font-size:1.5rem}.faq-list details[open] summary span{transform:rotate(45deg)}.faq-list details p{padding:0 50px 25px 0}.editorial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding-block:90px}.editorial-grid article{background:var(--soft);padding:32px}.editorial-grid article>span{color:var(--orange-2);text-transform:uppercase;letter-spacing:.1em;font-size:.72rem;font-weight:800}.editorial-grid h2{font-size:1.7rem;margin-top:18px}.contact-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:30px;padding-block:90px}.quote-form{border:1px solid var(--line);padding:36px}.quote-form>label{margin-bottom:25px}.form-note{font-size:.8rem;margin:15px 0 0}.contact-card{background:var(--navy);color:#fff;padding:40px}.contact-card h2{color:#fff}.contact-card>a{display:flex;gap:12px;align-items:center;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.2)}.contact-card address{font-style:normal;margin-top:28px;color:#cbd9df}.sitemap-list{display:grid;grid-template-columns:repeat(3,1fr);gap:50px;padding-block:90px}.sitemap-list h2{font-size:1.45rem}.sitemap-list a{display:block;padding:9px 0;border-bottom:1px solid var(--line);text-transform:capitalize;color:var(--muted)}.sitemap-list a:hover{color:var(--orange-2)}
.phone-field{border:0;padding:0;margin:0;min-width:0}.phone-field legend{color:var(--navy);font-size:.82rem;font-weight:750;margin-bottom:8px}.phone-field>div{display:grid;grid-template-columns:104px 1fr;gap:8px}.phone-field select{padding-inline:8px}.hp-field{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}.form-status{padding:13px 15px;margin:0 0 20px;border-left:4px solid;font-size:.9rem;font-weight:700}.form-status.success{background:#edf8f2;border-color:#237a4b;color:#185b37}.form-status.error{background:#fff0ed;border-color:#b33a25;color:#8a2b1b}
footer{background:var(--navy-2);color:#d5e1e6;padding:75px 0 20px}.footer-grid{display:grid;grid-template-columns:1.2fr .65fr .65fr 1fr;gap:55px}.footer-grid img{filter:brightness(0) invert(1);margin-bottom:22px}.footer-grid p{color:#b8c9d1}.footer-grid h2{color:#fff;font-size:.95rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:20px}.footer-grid a{display:block;color:#cbd9df;margin:8px 0;font-size:.86rem}.footer-grid a:hover{color:#ffad5a}.footer-grid address{font-style:normal}.footer-bottom{border-top:1px solid rgba(255,255,255,.15);margin-top:55px;padding-top:20px;display:flex;justify-content:space-between;font-size:.78rem;color:#9bb1bb}
@media(max-width:1024px){:root{--shell:min(100% - 34px,960px)}.utility{display:none}.nav-row{min-height:78px}.brand img{width:190px}.brand>span{display:none}.nav-toggle{display:block}.site-header nav{display:none;position:absolute;top:78px;left:0;right:0;max-height:calc(100vh - 78px);overflow:auto;background:#fff;padding:18px 24px 28px;box-shadow:var(--shadow);align-items:stretch;flex-direction:column;gap:4px}.site-header nav.open{display:flex}.site-header nav>a{padding:12px!important}.nav-group{border-bottom:1px solid var(--line)}.nav-group>button{width:100%;justify-content:space-between;padding:13px 2px}.nav-group>button::after{display:none}.nav-dropdown{position:static;width:auto;border:0;border-left:2px solid var(--orange);box-shadow:none;margin:0 0 14px 5px;padding:0 0 0 10px;opacity:1;visibility:visible;transform:none;display:none}.nav-group.open .nav-dropdown{display:block}.nav-dropdown::before{display:none}.nav-dropdown .dropdown-lead{margin-top:2px}.nav-toggle[aria-expanded="true"] .nav-open{display:none}.nav-toggle[aria-expanded="true"] .nav-close{display:inline}.hero-grid{grid-template-columns:1fr;min-height:0}.hero-copy{padding:75px 0 55px}.hero-media{height:430px}.hero-media figcaption{left:25px}.product-grid{grid-template-columns:repeat(2,1fr)}.application-grid{grid-template-columns:1fr 1fr}.application-grid article:nth-child(2){border-right:0}.application-grid article{border-bottom:1px solid var(--line)}.data-grid,.two-col,.table-block{gap:45px}.cta-inner{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr}.contact-grid{grid-template-columns:1fr}.page-hero:after{font-size:8rem}}
@media(max-width:1024px){.nav-group>summary{width:100%;justify-content:space-between;padding:13px 2px}.nav-group>summary::after{display:none}.nav-group[open] .nav-dropdown{display:block}}
@media(max-width:768px){:root{--shell:calc(100% - 28px)}h1{font-size:2.85rem}.hero-copy{padding-top:58px}.hero-actions{align-items:flex-start;flex-direction:column}.hero-facts{grid-template-columns:1fr}.hero-media{height:330px}.intro,.data-grid,.product-detail,.two-col,.table-block,.calculator-wrap{grid-template-columns:1fr;gap:45px}.intro{padding-block:75px}.intro>div:last-child{columns:1}.product-section,.applications,.technical-content,.listing{padding-block:75px}.product-grid{grid-template-columns:1fr}.section-head{align-items:flex-start;flex-direction:column}.application-grid{grid-template-columns:1fr}.application-grid article{border-right:0}.identity-grid{grid-template-columns:1fr 1fr}.page-hero{padding:65px 0 72px}.product-detail{padding-block:75px}.technical-panel,.data-band{padding-block:70px}.content-grid{grid-template-columns:1fr}.standards-list article{grid-template-columns:1fr;gap:15px}.resource-grid,.editorial-grid,.sitemap-list{grid-template-columns:1fr;padding-block:70px}.contact-grid,.calculator-wrap{padding-block:70px}.footer-grid{grid-template-columns:1fr;gap:35px}.footer-bottom{gap:20px;flex-direction:column}.cta-actions{align-items:flex-start;flex-direction:column}.page-hero:after{display:none}}
@media(max-width:480px){.brand img{width:165px}.nav-row{min-height:70px}.site-header nav{top:70px;max-height:calc(100vh - 70px)}.breadcrumbs{min-height:44px}.breadcrumb-home span{display:none}.breadcrumbs li+li::before{margin-inline:10px 9px}.hero-copy h1{font-size:2.55rem}.hero-media{height:280px}.hero-media figcaption{left:14px;bottom:14px;padding:18px}.identity-grid,.calc-fields,.field-grid{grid-template-columns:1fr}.spec-list div{grid-template-columns:1fr;gap:4px}.quote-form,.calculator{padding:24px}.contact-card{padding:28px}.result strong{font-size:2.45rem}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media print{.utility,.nav-toggle,.site-header nav,.cta,footer{display:none}.site-header{position:static}.page-hero{background:#fff;color:#000;padding:20px 0}.page-hero h1,.page-hero p{color:#000}}

/* Premium visual system */
:root{
  --radius:12px;
  --shadow:0 24px 70px rgba(0,40,63,.14);
  --soft-blue:#eaf3f7;
}

body{
  background:#fbfdfe;
}

.site-header{
  box-shadow:0 8px 28px rgba(0,40,63,.06);
}

.hero{
  position:relative;
  isolation:isolate;
  background:
    radial-gradient(circle at 18% 12%,rgba(0,131,170,.25),transparent 33%),
    radial-gradient(circle at 88% 82%,rgba(255,128,0,.16),transparent 28%),
    linear-gradient(125deg,#001f33 0%,#003859 55%,#00283f 100%);
}

.hero::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  opacity:.32;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(90deg,#000,transparent 78%);
}

.hero-grid{
  min-height:720px;
  gap:54px;
  padding-block:34px;
}

.hero-copy{
  padding-right:0;
}

.hero-copy h1,
.hero-copy > p,
.hero-copy .text-link,
.hero-facts dt{
  color:#fff;
}

.hero-copy > p,
.hero-facts dd{
  color:#c8d8df;
}

.hero-media{
  overflow:visible;
  margin:26px 0;
  border:1px solid rgba(255,255,255,.14);
  border-radius:22px;
  box-shadow:0 34px 90px rgba(0,0,0,.34);
}

.hero-media picture{
  display:block;
  width:100%;
  height:100%;
  overflow:hidden;
  border-radius:21px;
}

.hero-media picture img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.96) contrast(1.04);
}

.hero-media::after{
  border-radius:21px;
  background:linear-gradient(90deg,rgba(0,40,63,.26),transparent 48%);
}

.hero-media figcaption{
  left:-28px;
  bottom:30px;
  border:1px solid rgba(255,255,255,.13);
  border-radius:12px;
  background:rgba(0,40,63,.92);
  backdrop-filter:blur(14px);
}

.intro{
  position:relative;
}

.intro::after{
  content:"";
  position:absolute;
  right:3%;
  bottom:18%;
  width:150px;
  height:150px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,128,0,.11),transparent 68%);
  pointer-events:none;
}

.product-section{
  background:linear-gradient(145deg,#edf5f8 0%,#f9fbfc 48%,#eef4f6 100%);
}

.product-card,
.resource-grid > a,
.editorial-grid article{
  overflow:hidden;
  border:1px solid rgba(0,56,89,.1);
  border-radius:14px;
  box-shadow:0 12px 34px rgba(0,40,63,.07);
}

.card-image::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 54%,rgba(0,40,63,.25));
  pointer-events:none;
}

.data-band,
.technical-panel{
  background:
    radial-gradient(circle at 80% 20%,rgba(0,130,170,.22),transparent 34%),
    linear-gradient(125deg,#00283f,#003859 62%,#002b43);
}

.application-grid{
  overflow:hidden;
  border-radius:14px;
  box-shadow:0 18px 54px rgba(0,40,63,.08);
}

.application-grid article{
  background:linear-gradient(150deg,#fff,#f5f9fa);
  transition:transform .25s ease,background .25s ease;
}

.application-grid article:hover{
  z-index:1;
  transform:translateY(-5px);
  background:#fff;
}

.page-hero{
  background:
    radial-gradient(circle at 15% 15%,rgba(0,140,180,.26),transparent 30%),
    linear-gradient(125deg,#00283f 0%,#003859 68%,#004a70 68%);
}

.cta{
  background:linear-gradient(120deg,#ff8a15,#ffb057);
}

/* Motion is progressive enhancement; content remains visible without JavaScript. */
.js .reveal{
  opacity:0;
  transform:translateY(22px);
  transition:opacity .7s ease,transform .7s cubic-bezier(.2,.75,.2,1);
}

.js .reveal.is-visible{
  opacity:1;
  transform:none;
}

.hero-copy > *{
  animation:hero-rise .75s both cubic-bezier(.2,.75,.2,1);
}

.hero-copy > :nth-child(2){animation-delay:.08s}
.hero-copy > :nth-child(3){animation-delay:.16s}
.hero-copy > :nth-child(4){animation-delay:.24s}
.hero-copy > :nth-child(5){animation-delay:.32s}
.hero-media{animation:hero-image .9s .12s both cubic-bezier(.2,.75,.2,1)}

@keyframes hero-rise{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:none}
}

@keyframes hero-image{
  from{opacity:0;transform:translateX(26px) scale(.985)}
  to{opacity:1;transform:none}
}

@media(max-width:1024px){
  .hero-grid{gap:0;padding-block:0 40px}
  .hero-media{margin:0;height:480px}
}

@media(max-width:768px){
  .hero-media{height:350px;border-radius:16px}
  .hero-media picture,.hero-media::after{border-radius:15px}
}

@media(prefers-reduced-motion:reduce){
  .hero-copy > *,
  .hero-media{
    animation:none!important;
  }
  .js .reveal{
    opacity:1;
    transform:none;
  }
}

/* Keep the expanded nine-product menu usable on shorter screens. */
.nav-dropdown{
  max-height:calc(100vh - 140px);
  overflow:auto;
}