:root {
  --navy:#1b2a4e;
  --navy-2:#263b69;
  --orange:#e85d3c;
  --orange-dark:#c84826;
  --paper:#ffffff;
  --mist:#f4f6f9;
  --cream:#faf8f4;
  --ink:#1b2a4e;
  --muted:#5e687b;
  --line:#e1e5ec;
  --shadow:0 18px 45px rgba(27,42,78,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);line-height:1.65;background:var(--paper)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
h1,h2,h3,h4{line-height:1.13;letter-spacing:-.02em}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.topbar{background:var(--navy);color:#fff;border-top:4px solid #a83a56;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;gap:20px;padding:7px 0}
.topbar-links{display:flex;gap:22px}
.site-nav{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.nav-inner{min-height:84px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.logo img{width:148px;height:auto}
.nav-links{display:flex;align-items:center;justify-content:flex-end;gap:26px;font-size:14px;font-weight:600}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--orange)}
.nav-cta{background:var(--orange);color:#fff!important;padding:12px 18px;border-radius:4px}
.nav-cta:hover{background:var(--orange-dark)}
.eyebrow{color:var(--orange);font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:#727c8f;font-size:13px;padding-top:26px}
.crumbs a:hover{color:var(--orange)}
.category-hero{background:linear-gradient(90deg,#f4f6f9 0%,#fff 78%);padding-bottom:24px;border-bottom:1px solid var(--line)}
.category-hero-grid{display:block;padding-top:18px}
.category-hero h1{font-size:clamp(30px,3vw,42px);max-width:780px}
.category-hero .lead{color:var(--muted);font-size:15px;max-width:820px;margin-top:10px}
.category-hero .hero-media,.category-hero .hero-points{display:none}
.category-hero{padding-bottom:30px}.selection{padding-top:26px}.selection>.container>.section-head{display:none}
.hero-points{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.hero-points span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 12px;font-size:12px;font-weight:700}
.hero-media{height:430px;border-radius:10px;overflow:hidden;box-shadow:var(--shadow);position:relative;background:var(--navy)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 48%,rgba(8,18,42,.55))}
.hero-media-label{position:absolute;z-index:2;left:24px;bottom:22px;color:#fff;font-size:13px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
.selection{padding:42px 0 74px;background:#fff}
.section-head{display:grid;grid-template-columns:1fr minmax(280px,430px);gap:44px;align-items:end;margin-bottom:40px}
.section-head h2{font-size:clamp(34px,4vw,50px)}
.section-head p{color:var(--muted)}
.choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.choice-card{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;display:grid;grid-template-columns:210px 1fr;min-height:250px;transition:.25s}
.choice-card:hover{transform:translateY(-4px);border-color:#f0aa99;box-shadow:var(--shadow)}
.choice-image{min-height:250px;overflow:hidden;background:var(--navy)}
.choice-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.choice-card:hover img{transform:scale(1.035)}
.choice-body{padding:26px;display:flex;flex-direction:column}
.choice-kicker{font-size:11px;color:var(--orange);letter-spacing:.12em;font-weight:800;text-transform:uppercase}
.choice-body h3{font-size:24px;margin:8px 0 12px}
.choice-body p{color:var(--muted);font-size:14px}
.choice-meta{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.choice-meta span{font-size:11px;background:var(--mist);padding:5px 8px;border-radius:3px}
.text-link{color:var(--orange);font-size:14px;font-weight:800;border-bottom:1px solid var(--orange);align-self:flex-start;margin-top:auto;padding-top:8px}
.guide{background:var(--mist);padding:76px 0}
.guide-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}
.guide h2{font-size:clamp(34px,4vw,48px)}
.guide-copy>p{color:var(--muted);margin-top:18px}
.guide-list{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line)}
.guide-item{padding:22px 18px 22px 0;border-bottom:1px solid var(--line)}
.guide-item:nth-child(even){padding-left:22px;border-left:1px solid var(--line)}
.guide-item strong{display:block;font-size:14px}
.guide-item span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.cta-band{background:var(--navy);color:#fff;padding:62px 0}
.cta-band .container{display:flex;align-items:center;justify-content:space-between;gap:36px}
.cta-band h2{font-size:clamp(30px,4vw,44px);color:#fff;max-width:760px}
.cta-band p{color:rgba(255,255,255,.68);margin-top:10px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:14px 20px;border-radius:4px;background:var(--orange);color:#fff;font-weight:800;white-space:nowrap}
.button:hover{background:var(--orange-dark)}
.button.outline{background:transparent;border:1px solid rgba(255,255,255,.5)}
.button.outline:hover{border-color:#fff;background:#fff;color:var(--navy)}

/* Detail pages: intentionally different from category pages */
.overview,.build-up,.applications,.performance{display:none}
.detail-hero{background:linear-gradient(135deg,#f7f4ee,#f2f5f8);color:var(--ink);padding-bottom:44px;border-bottom:1px solid var(--line)}
.detail-hero .crumbs{color:#727c8f}
.detail-hero .crumbs a:hover{color:var(--orange)}
.detail-hero-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:48px;align-items:center;padding-top:28px}
.detail-hero h1{font-size:clamp(42px,5vw,64px);color:var(--ink)}
.detail-hero .lead{font-size:17px;color:var(--muted);margin-top:18px;max-width:600px}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.detail-media{border-radius:10px;overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);position:relative}
.detail-media img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#fff}
.layer-key{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border-top:1px solid var(--line);background:#fff}
.layer-key span{display:flex;gap:9px;align-items:center;padding:10px 12px;color:var(--muted);font-size:11px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.layer-key span:nth-child(even){border-right:0}.layer-key span:nth-last-child(-n+2){border-bottom:0}
.layer-key b{color:var(--orange);font-size:10px;letter-spacing:.08em}
.fact-strip{margin-top:0;position:relative;z-index:3;background:#fff;padding:20px 0}
.fact-strip-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow)}
.fact{padding:20px 22px;border-right:1px solid var(--line)}
.fact:last-child{border-right:0}
.fact small{display:block;color:#8a93a6;font-size:10px;letter-spacing:.12em;text-transform:uppercase;font-weight:800}
.fact strong{display:block;font-size:14px;margin-top:5px}
.detail-gallery{padding:82px 0 42px;background:#fff}
.gallery-heading{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:28px}
.gallery-heading h2{font-size:clamp(34px,4vw,48px)}
.gallery-heading p{max-width:420px;color:var(--muted);font-size:14px}
.gallery-grid{display:grid;grid-template-columns:1.35fr .825fr .825fr;grid-template-rows:360px;gap:14px}
.gallery-card{position:relative;overflow:hidden;border-radius:8px;background:var(--navy)}
.gallery-card img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.gallery-card:hover img{transform:scale(1.035)}
.gallery-card::after{content:"";position:absolute;inset:48% 0 0;background:linear-gradient(180deg,transparent,rgba(6,15,34,.75))}
.gallery-card figcaption{position:absolute;z-index:2;left:18px;right:18px;bottom:16px;color:#fff;font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}
.overview{padding:92px 0 70px}
.overview-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:80px;align-items:start}
.overview h2,.build-up h2,.applications h2,.documents h2{font-size:clamp(34px,4vw,48px)}
.overview-copy p{color:var(--muted);margin-top:18px}
.benefit-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.benefit{border:1px solid var(--line);padding:20px;border-radius:6px;background:var(--cream)}
.benefit b{display:block;font-size:14px}
.benefit span{display:block;color:var(--muted);font-size:13px;margin-top:5px}
.build-up{background:var(--mist);padding:78px 0}
.build-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:74px}
.build-intro p{color:var(--muted);margin-top:18px}
.build-note{font-size:12px;color:#737d90;border-left:3px solid var(--orange);padding-left:14px;margin-top:24px}
.layers{counter-reset:layer;display:grid;gap:10px}
.layer{counter-increment:layer;background:#fff;border:1px solid var(--line);border-radius:6px;padding:17px 18px 17px 62px;position:relative}
.layer::before{content:counter(layer,decimal-leading-zero);position:absolute;left:18px;top:17px;color:var(--orange);font-size:11px;font-weight:900;letter-spacing:.1em}
.layer strong{font-size:14px}
.layer p{color:var(--muted);font-size:13px;margin-top:4px}
.applications{padding:78px 0}
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:32px}
.app{padding:22px;background:var(--cream);border-top:3px solid var(--navy);min-height:128px}
.app strong{font-size:15px}
.app p{font-size:13px;color:var(--muted);margin-top:6px}
.performance{background:var(--navy);color:#fff;padding:74px 0}
.performance-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:start}
.performance h2{font-size:clamp(34px,4vw,48px);color:#fff}
.performance-copy p{color:rgba(255,255,255,.68);margin-top:18px}
.performance-list{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid rgba(255,255,255,.16)}
.performance-item{padding:20px 18px 20px 0;border-bottom:1px solid rgba(255,255,255,.16)}
.performance-item:nth-child(even){padding-left:22px;border-left:1px solid rgba(255,255,255,.16)}
.performance-item strong{display:block;font-size:14px;color:#fff}
.performance-item span{display:block;font-size:12px;color:rgba(255,255,255,.58);margin-top:5px}
.documents{padding:42px 0 82px;background:#fff}
.documents-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
.documents-head h2{font-size:clamp(34px,4vw,48px)}
.detail-gallery .gallery-heading h2,.documents-head h2{display:none}
.detail-gallery .gallery-heading,.documents-head{align-items:center;margin-bottom:20px}
.detail-gallery .gallery-heading .eyebrow,.documents-head .eyebrow{font-size:12px}
.cta-band h2{font-size:22px;line-height:1.25}
.documents-head p{display:none}
.doc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.doc{border:1px solid var(--line);border-radius:6px;padding:22px;background:var(--mist);position:relative;min-height:126px;transition:.2s}
.doc:hover{border-color:#f0aa99;transform:translateY(-2px)}
.doc small{display:block;color:var(--orange);font-size:10px;font-weight:900;letter-spacing:.12em}
.doc strong{display:block;font-size:14px;margin-top:7px}
.doc span{display:block;color:var(--orange);font-size:12px;font-weight:800;margin-top:10px}
.doc-request{background:#fff8f4;border-style:dashed}
.related{padding:70px 0;background:var(--cream)}
.related-top{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
.related-top h2{font-size:34px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-card{background:#fff;border:1px solid var(--line);border-radius:6px;padding:20px;transition:.2s}
.related-card:hover{transform:translateY(-3px);border-color:#f0aa99}
.related-card small{color:var(--orange);font-weight:800;font-size:10px;letter-spacing:.1em}
.related-card h3{font-size:18px;margin:7px 0}
.related-card p{color:var(--muted);font-size:13px}
footer{background:#0d1831;color:rgba(255,255,255,.62);padding:36px 0;font-size:13px}
.footer-grid{display:flex;align-items:center;justify-content:space-between;gap:24px}
.footer-grid img{width:132px;filter:brightness(0) invert(1);opacity:.92}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-links a:hover{color:#fff}
@media(max-width:980px){
  .nav-links{gap:14px;font-size:12px}.detail-hero-grid,.overview-grid,.build-grid,.performance-grid,.guide-grid{grid-template-columns:1fr}.hero-media{height:360px}.choice-card{grid-template-columns:170px 1fr}.section-head{grid-template-columns:1fr}.fact-strip-grid{grid-template-columns:repeat(2,1fr)}.fact:nth-child(2){border-right:0}.fact:nth-child(-n+2){border-bottom:1px solid var(--line)}.doc-grid{grid-template-columns:repeat(2,1fr)}.gallery-grid{grid-template-columns:1.2fr .8fr;grid-template-rows:310px 240px}.gallery-card:first-child{grid-row:1 / span 2}
}
@media(max-width:720px){
  .topbar{display:none}.nav-inner{min-height:72px}.logo img{width:122px}.nav-links a:not(.nav-cta){display:none}.container{width:min(100% - 28px,1180px)}.category-hero{padding-bottom:18px}.detail-hero{padding-bottom:38px}.category-hero-grid,.detail-hero-grid{gap:26px;padding-top:20px}.selection,.overview,.build-up,.applications,.documents{padding:48px 0}.choice-grid,.benefit-grid,.app-grid,.related-grid{grid-template-columns:1fr}.choice-card{grid-template-columns:1fr}.choice-image{height:220px;min-height:0}.guide-list,.performance-list{grid-template-columns:1fr}.guide-item:nth-child(even),.performance-item:nth-child(even){padding-left:0;border-left:0}.cta-band .container,.documents-head,.footer-grid,.gallery-heading{align-items:flex-start;flex-direction:column}.fact-strip{margin-top:0;background:var(--mist);padding-top:20px}.fact-strip-grid{grid-template-columns:1fr}.fact{border-right:0!important;border-bottom:1px solid var(--line)}.fact:last-child{border-bottom:0}.doc-grid{grid-template-columns:1fr}.related-top{align-items:flex-start;flex-direction:column}.detail-gallery{padding:52px 0 24px}.gallery-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px}.gallery-card,.gallery-card:first-child{flex:0 0 84%;height:320px;grid-row:auto;scroll-snap-align:start}.layer-key{grid-template-columns:1fr}.layer-key span{border-right:0}.layer-key span:nth-last-child(-n+2){border-bottom:1px solid var(--line)}.layer-key span:last-child{border-bottom:0}
}