:root{--ink:#152126;--muted:#65716f;--paper:#fafbf8;--line:#dce2da;--green:#244e46;--pale:#eaf0e7;--font:Arial,Helvetica,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body.bn-site{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.6}body.bn-site h1,body.bn-site h2,body.bn-site h3,body.bn-site p{margin:0}body.bn-site h1,body.bn-site h2,body.bn-site h3{font-family:var(--font);color:inherit}body.bn-site h1{font-size:clamp(46px,6.1vw,86px);line-height:1.04;letter-spacing:-.055em;font-weight:500}body.bn-site h2{font-size:clamp(32px,3.5vw,50px);line-height:1.12;letter-spacing:-.045em;font-weight:500}body.bn-site h3{font-size:22px;line-height:1.3;letter-spacing:-.025em;font-weight:500}body.bn-site a{color:inherit;text-decoration:none}body.bn-site button,body.bn-site input,body.bn-site textarea,body.bn-site select{font:inherit}body.bn-site 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@media(min-width:1500px){.hero{padding-top:78px;padding-bottom:66px}.hero-visual{min-height:570px}}
@media(max-width:1050px){.wrap{width:calc(100% - 56px)}.nav-wrap{width:calc(100% - 40px)}#main-nav{gap:20px}.brand{width:210px}.brand img{width:230px}.hero{gap:30px}.hero-visual{min-height:510px}.hero-actions{gap:15px}.category-card{padding:22px 16px}.category-card h3{font-size:17px!important}.approach-grid{gap:55px}.footer-top{gap:22px}.detail-grid,.resource-grid,.contact-grid,.story{gap:45px}}
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@media(max-width:440px){.hero h1{font-size:60px!important}.hero-actions{gap:20px}.hero-actions .button{gap:15px;padding:15px 16px}.hero-visual{min-height:345px}.hero-visual figcaption{font-size:7px;padding:12px}.principles{flex-direction:column;gap:7px;padding-block:18px}.category-card{padding:18px;min-height:185px}.category-card h3{font-size:17px!important}.category-card p{font-size:10px}.section-head{flex-direction:column;gap:15px}.application-tiles h3{font-size:22px!important}.line-art{opacity:.3;right:45px}.cta{padding:28px}.cta h2{font-size:30px!important}.footer-top{gap:32px 20px}.page-intro h1{font-size:43px!important}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

body.bn-site a.button,body.bn-site button.button{display:inline-flex;align-items:center;justify-content:space-between;gap:28px;background:var(--ink);color:#fff;padding:16px 22px;border:1px solid var(--ink);border-radius:0;box-shadow:none;line-height:1.5}body.bn-site .button:hover{background:var(--green)}body.bn-site a.button.light{background:#f3f5ed;color:var(--ink);border-color:#f3f5ed}
/* Supplier product catalogue */
.hero-visual{background:#fff}.hero-visual>img{object-fit:contain}.catalogue-section,.featured-range{padding-bottom:90px}.product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.product-card{border:1px solid #dce1da;border-radius:18px;overflow:hidden;background:#fff;transition:transform .2s}.product-card:hover{transform:translateY(-4px)}.product-card[hidden]{display:none}.product-card>a{display:block;color:inherit;text-decoration:none}.product-photo{position:relative;background:#fff;overflow:hidden}.product-photo>img{display:block;width:100%;height:280px;object-fit:contain;padding:24px}.product-card-copy{padding:24px}.product-card h3{font-size:23px;line-height:1.25;margin:10px 0 16px}.product-card p{font-size:14px}.product-card .eyebrow{font-size:10px}.product-card .text-link{display:inline-block;margin-top:14px}.catalogue-tools{display:flex;align-items:end;justify-content:space-between;gap:20px;margin:28px 0}.catalogue-tools label{display:block;max-width:500px;width:100%;font-size:13px}.catalogue-tools input{display:block;margin-top:8px;width:100%;border:1px solid #cbd3c9;border-radius:8px;background:#fff;padding:14px;font:inherit}.filter-bar{flex-wrap:wrap}.data-note{background:#edf1ea;border-radius:12px;padding:24px;margin-top:32px;font-size:14px;line-height:1.65}.data-note p{margin:8px 0 0}.product-detail{padding-top:50px;padding-bottom:70px}.product-hero{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin-top:36px}.product-hero h1{font-size:clamp(32px,3.5vw,50px);line-height:1.1;margin:15px 0 25px}.product-hero .product-photo{border-radius:18px;border:1px solid #e2e6de}.product-hero .product-photo>img{height:480px;padding:30px}.product-features{padding-left:20px;margin:25px 0;line-height:1.8}.image-caption{font-size:12px;color:#667168;line-height:1.6;margin:14px 0}.label-translations{font-size:13px;margin-top:18px}.label-translations summary{cursor:pointer}.label-translations li{margin:8px 0}.size-tag{display:inline-block;background:#e7ece3;padding:8px 12px;border-radius:6px;font-size:14px}.spec-section{margin-top:70px}.spec-section h2,.technical-grid h2{font-size:32px}.table-scroll{overflow-x:auto;border:1px solid #dce1da;border-radius:12px;background:#fff}.product-specs{border-collapse:collapse;width:100%;font-size:13px;margin:0}.product-specs th,.product-specs td{padding:15px 14px;border:0;border-bottom:1px solid #e1e6dc;min-width:95px;white-space:normal}.product-specs th{background:#e8ede4;text-align:left}.product-specs tr:nth-child(even){background:#f8faf5}.confirmation-note{padding:18px;border-left:3px solid #859773;background:#f1f3ed;font-size:14px}.technical-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:55px}.technical-grid figure{margin:0;background:#fff;border:1px solid #e1e6dc;border-radius:16px;padding:25px}.technical-grid img{width:100%;height:290px;object-fit:contain}.technical-grid figcaption{font-size:12px;line-height:1.7;margin-top:20px;color:#667168}.pvc-photo .photo-banner{position:absolute;left:6%;top:2%;width:56%;height:20%;display:flex;align-items:center;justify-content:center;background:#1e5890;color:white;font-size:clamp(9px,1vw,14px);font-weight:700;text-align:center;padding:5px;line-height:1.4}.product-card .pvc-photo .photo-banner{left:11%;top:10%;width:46%;height:15%;font-size:9px}.featured-range .product-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.featured-range{padding-top:40px}.featured-range .product-card h3{font-size:20px}.featured-range .product-photo>img{height:220px}
@media(max-width:1000px){.product-grid,.featured-range .product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.product-hero{gap:28px}.product-hero .product-photo>img{height:360px}}
@media(max-width:650px){.product-grid,.featured-range .product-grid,.product-hero,.technical-grid{grid-template-columns:1fr}.catalogue-tools{align-items:start;flex-direction:column}.product-photo>img{height:290px}.product-hero .product-photo>img{height:320px}.product-detail{padding-top:28px}.product-hero{margin-top:24px}.product-hero h1{font-size:34px}.spec-section{margin-top:45px}.technical-grid img{height:240px}.pvc-photo .photo-banner{font-size:10px}.filter-bar{gap:8px}.filter-bar button{font-size:12px;padding:10px 12px}.catalogue-section{padding-bottom:45px}}
.product-photo{height:280px;display:flex;align-items:center;padding:24px}.photo-media{position:relative;width:100%}.product-photo .photo-media>img{display:block;width:100%;height:auto;max-height:232px;object-fit:contain;padding:0}.product-hero .product-photo{height:480px;padding:30px}.product-hero .photo-media>img{max-height:420px}.product-photo.pvc-photo .photo-banner{left:0;top:0;width:62%;height:24%;font-size:11px}.featured-range .product-photo{height:220px}.featured-range .photo-media>img{max-height:172px}
@media(max-width:1000px){.product-hero .product-photo{height:360px}.product-hero .photo-media>img{max-height:300px}}@media(max-width:650px){.product-hero .product-photo{height:320px}.product-hero .photo-media>img{max-height:260px}}
body.bn-site .product-hero h1{font-size:clamp(32px,3.5vw,50px);line-height:1.12;margin:15px 0 25px;letter-spacing:-.04em}body.bn-site .product-card h3{margin:10px 0 16px}body.bn-site .product-card .text-link{margin-top:14px}body.bn-site .product-detail .image-caption{margin:14px 0}body.bn-site .data-note p{margin:8px 0 0}body.bn-site .spec-section h2,body.bn-site .technical-grid h2{font-size:32px;margin:12px 0 24px}body.bn-site .product-photo.pvc-photo .photo-banner{width:66%}body.bn-site .confirmation-note{margin:20px 0}body.bn-site .size-tag{margin-top:20px}@media(max-width:650px){body.bn-site .product-hero h1{font-size:34px}}
.product-extras{margin-top:55px}.detail-nav{display:flex;flex-wrap:wrap;gap:10px 24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;font-size:13px}.detail-nav a:hover{text-decoration:underline}.detail-module{padding:55px 0 0;scroll-margin-top:120px}body.bn-site .detail-module h2{font-size:clamp(28px,3vw,40px);margin:12px 0 18px;line-height:1.15}body.bn-site .module-intro{max-width:900px;margin-bottom:28px;font-size:17px;line-height:1.75;color:#526059}.detail-figures{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.detail-figures.two-figures{grid-template-columns:repeat(2,minmax(0,1fr))}.detail-figures figure{margin:0;background:white;border:1px solid var(--line);border-radius:16px;padding:22px;min-width:0}.detail-figure-media{height:240px;display:flex;align-items:center;justify-content:center}.detail-figure-media>img{width:100%;height:100%;object-fit:contain}.detail-figure-media>div{width:100%}.detail-figure-media svg{display:block;width:100%;height:auto;max-height:240px}body.bn-site .detail-figures h3{font-size:20px;margin:20px 0 12px;line-height:1.3}body.bn-site .detail-figures p{font-size:14px;line-height:1.65;color:#59675e}.module-steps{margin:28px 0 0;padding-left:23px;max-width:1000px}.module-steps li{padding:7px 0 7px 8px;line-height:1.75}body.bn-site .module-note{font-size:13px;line-height:1.8;color:#5f6c64;margin-top:24px;max-width:1000px}#catalogue-specifications{scroll-margin-top:120px}@media(max-width:900px){.detail-figures{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:650px){.detail-figures,.detail-figures.two-figures{grid-template-columns:1fr}.detail-module{padding-top:35px}.detail-figure-media{height:230px}.detail-nav{font-size:12px}.product-extras{margin-top:35px}}

/* Product discovery and stable image layout. */
body.bn-site .category-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.breadcrumbs{padding-top:26px;font-size:12px;line-height:1.8;color:var(--muted)}.breadcrumbs ol{display:flex;flex-wrap:wrap;list-style:none;padding:0;margin:0;gap:5px 10px}.breadcrumbs li:not(:last-child)::after{content:' /';margin-left:10px;color:#849188}.breadcrumbs a:hover{text-decoration:underline}.breadcrumbs [aria-current]{color:var(--ink)}.related-products{padding-bottom:70px}.related-products .product-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.related-products h2{margin-top:12px!important}@media(max-width:1000px){body.bn-site .category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.related-products .product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:650px){body.bn-site .category-grid,.related-products .product-grid{grid-template-columns:1fr}.breadcrumbs{padding-top:20px}.related-products{padding-bottom:45px}}

.catalogue-tools select{display:block;margin-top:8px;width:100%;border:1px solid #cbd3c9;border-radius:8px;background:#fff;padding:14px;font:inherit;height:55px}.catalogue-tools label{flex:1}.catalogue-tools #product-count{white-space:nowrap}.catalogue-tools{flex-wrap:wrap}@media(max-width:650px){.catalogue-tools label{max-width:none;width:100%}}

body.bn-site .catalogue-tools input[type="search"]{height:55px;padding:14px;border-radius:8px;background:#fff}

/* Shared category registry powers the header disclosure. */
.nav-products{position:relative}.products-toggle{display:flex;align-items:center;gap:7px;background:transparent;border:0;color:inherit;padding:12px 0;font-size:13px;line-height:1.5}.products-toggle span{font-size:17px;transition:transform .15s}.products-toggle[aria-expanded="true"] span{transform:rotate(180deg)}.product-dropdown{position:absolute;left:-20px;top:100%;width:265px;max-height:calc(100vh - 140px);overflow-y:auto;padding:10px 18px;background:var(--paper);border:1px solid var(--line);box-shadow:0 14px 30px rgba(21,33,38,.1);border-radius:6px;z-index:25}.product-dropdown[hidden]{display:none}body.bn-site #main-nav .product-dropdown a{display:block;padding:12px 6px;border:0;font-size:13px;line-height:1.5}.product-dropdown>.product-nav-all{font-weight:600;border-bottom:1px solid var(--line)!important}.product-dropdown>.product-nav-all span{float:right}.product-dropdown a:hover,.product-dropdown a[aria-current]{background:var(--pale)}.products-toggle:focus-visible,.product-dropdown a:focus-visible{outline:2px solid var(--green);outline-offset:4px}@media(max-width:800px){#main-nav.is-open{max-height:calc(100dvh - 72px);overflow-y:auto}.nav-products{width:100%}.products-toggle{width:100%;justify-content:space-between;padding:14px 0}.product-dropdown{position:static;width:100%;max-height:none;box-shadow:none;border:0;border-left:2px solid var(--line);border-radius:0;padding:0 0 0 15px;margin:0 0 12px}body.bn-site #main-nav .product-dropdown a{padding:11px 8px}}

body.bn-site #main-nav .products-toggle,body.bn-site #main-nav .products-toggle:hover,body.bn-site #main-nav .products-toggle:focus{background:transparent;color:var(--ink);border:0;box-shadow:none;border-radius:0}body.bn-site #main-nav .products-toggle[aria-expanded="true"]{color:var(--green)}

/* Categories and their types share the classification registry. */
.nav-wrap{position:relative}.nav-products{position:static}.product-dropdown{left:auto;right:0;width:min(850px,calc(100vw - 40px));max-height:calc(100dvh - 135px);padding:16px 24px}.product-nav-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px 26px;padding-top:16px}.product-nav-group{min-width:0}.product-nav-group ul{list-style:none;padding:0;margin:4px 0 0}body.bn-site #main-nav .product-dropdown .product-nav-category{font-size:14px;font-weight:600;padding:9px 6px}body.bn-site #main-nav .product-nav-group li a{font-size:12px;line-height:1.5;padding:8px 6px;color:#526059}.product-nav-group a{overflow-wrap:anywhere}body.bn-site #main-nav .product-nav-group li a[aria-current]{color:var(--green)}@media(max-width:800px){.product-dropdown{width:100%;padding:0 0 0 12px;max-height:none}.product-nav-groups{grid-template-columns:1fr;gap:14px;padding-top:12px}body.bn-site #main-nav .product-nav-group li a{padding:10px 8px}.product-nav-group ul{border-left:1px solid var(--line);padding-left:10px;margin-left:6px}}

/* Mobile product families expand individually; desktop groups stay visible. */
.product-category-toggle,.product-category-all{display:none}body.bn-site #main-nav .product-category-toggle{width:100%;align-items:center;justify-content:space-between;gap:12px;padding:12px 6px;background:transparent;color:var(--ink);border:0;border-radius:0;box-shadow:none;text-align:left;font-size:14px;font-weight:600;line-height:1.5}.product-category-toggle span{font-size:17px;transition:transform .15s}.product-category-toggle[aria-expanded="true"] span{transform:rotate(180deg)}.product-category-toggle:focus-visible{outline:2px solid var(--green);outline-offset:2px}@media(max-width:800px){body.bn-site #main-nav .product-dropdown .product-nav-category{display:none}.product-category-toggle{display:flex}.product-category-all{display:list-item}.product-nav-group:not(.is-expanded) .product-type-list{display:none}.product-nav-groups{gap:0}.product-nav-group{border-bottom:1px solid var(--line)}.product-nav-group .product-type-list{margin-bottom:12px}.product-category-all a{font-weight:600}}