@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700&family=Poppins:wght@300;400;500;600;700&display=swap');
:root{--blue:#183cc5;--ink:#111a38;--mist:#eef2fa;--line:#d4deed;--muted:#485370;--width:1280px;scroll-padding-top:104px}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:#fff;font:16px/1.65 "Segoe UI",system-ui,sans-serif}a{color:inherit;text-underline-offset:4px}a:focus-visible,summary:focus-visible,select:focus-visible,video:focus-visible{outline:3px solid #2c58e9;outline-offset:4px}.skip{position:absolute;left:8px;top:8px;z-index:10;background:#fff;padding:10px;transform:translateY(-160%)}.skip:focus{transform:none}.shell{width:min(var(--width),calc(100% - 96px));margin-inline:auto}header{position:sticky;top:0;z-index:5;background:#fff;border-bottom:1px solid var(--line)}.bar{min-height:79px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;letter-spacing:.07em;font:700 19px/1 Bahnschrift,"Arial Narrow",sans-serif}.brand b{color:var(--blue)}.brand img{width:40px;height:40px;object-fit:contain}.brand small{display:block;font-size:8px;letter-spacing:.22em;margin-top:5px}.bar nav{display:flex;gap:26px}.bar details{position:relative}.bar summary{cursor:pointer;font-weight:650}.bar details div{position:absolute;min-width:185px;background:#fff;border:1px solid var(--line);box-shadow:0 10px 28px #132c5420;padding:8px;right:0}.bar details a{display:block;padding:6px 9px;text-decoration:none}.bar details a:hover{background:var(--mist);color:var(--blue)}.action{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--blue);color:#fff;text-decoration:none;padding:11px 17px;min-height:46px;border:1px solid var(--blue);font-weight:650}.action:hover{background:#122e9a}.secondary{background:#fff;color:var(--blue)}.secondary:hover{background:var(--mist)}.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);min-height:600px;background:var(--mist)}.intro{align-self:center;padding:clamp(36px,6vw,105px) 28px clamp(36px,6vw,105px) max(48px,calc((100vw - 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@media(max-width:900px){.shell{width:calc(100% - 48px)}.intro{padding-left:24px}.bar nav{gap:11px}.footer{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:670px){:root{scroll-padding-top:125px}.shell{width:calc(100% - 32px)}.bar{display:grid;grid-template-columns:1fr auto;gap:7px;padding-block:9px}.bar nav{grid-row:2;grid-column:1/-1;font-size:14px;justify-content:space-between}.bar details:first-child div{left:0;right:auto}.bar .action{grid-row:1;grid-column:2;min-height:38px;padding:5px 10px}.hero,.field,.materials-grid,.dossier{grid-template-columns:1fr;min-height:0}.intro{padding:44px 16px}.hero-image{min-height:265px}.numbers .shell div{padding:16px 5px}.numbers span{font-size:11px}.directory a{grid-template-columns:1fr auto}.directory a span{grid-row:2;grid-column:1}.directory b{grid-row:1;grid-column:2}.dossier aside{position:static}.footer{overflow-wrap:anywhere}}
:root{--blue:#2d5016;--ink:#182817;--muted:#334155;--mist:#f5f5f5;--line:#d5dfd2;--gold:#d4af37;--surface:#fff;--glass:#ffffffb3;--header:#ffffffb3;--shadow:0 2px 8px #0000001a;color-scheme:light}html[data-theme=dark]{color-scheme:dark;--blue:#b8d897;--ink:#f6f8f3;--muted:#d0dbd1;--mist:#191d18;--line:#485446;--surface:#121212;--glass:#242b22d9;--header:#1a1a1acc}body{background:var(--surface);font:400 16px/1.65 Poppins,system-ui,sans-serif}h1,h2,h3,.brand,.numbers strong{font-family:Poppins,system-ui,sans-serif;letter-spacing:-.04em;font-weight:700;line-height:1.1}h2{font-size:clamp(28px,4vw,36px);color:var(--blue)}h3{font-size:clamp(18px,2vw,24px)}header{background:var(--surface);box-shadow:var(--shadow)}@supports(backdrop-filter:blur(10px)){header{background:var(--header);backdrop-filter:blur(10px) saturate(135%)}}.bar{position:relative}.bar nav{margin-left:auto}.bar .mega{position:static}.bar .mega-panel{position:absolute;inset:100% 0 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@media(max-width:950px){.numbers .shell,.product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.facility-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:670px){.bar{grid-template-columns:1fr auto;gap:8px}.bar nav{grid-column:1;grid-row:2;margin:0}.bar .utilities{grid-column:2;grid-row:2}.bar .mega-panel{grid-template-columns:1fr 1fr;max-height:65vh;overflow:auto;padding:12px}.hero .intro{padding-top:70px}.analytics-grid,.facility-grid{grid-template-columns:1fr}.numbers .shell,.product-grid{gap:12px}.numbers article,.glass{padding:15px}.search-toggle,.theme{font-size:12px;padding:6px 9px}}
@media(prefers-reduced-motion:reduce){*,*::after,*::before{animation:none!important;transition:none!important}}

:root{--blue:#173d69;--ink:#10253e;--muted:#455870;--mist:#f0f3f6;--line:#d0d9e4;--gold:#d4af65;--surface:#fbfaf7;--glass:#fffdf7e8;--header:#fbfaf7e8}html[data-theme=dark]{--blue:#b8d6fb;--ink:#eef3fa;--muted:#c5d1e0;--mist:#142336;--line:#435674;--gold:#e1bf78;--surface:#101b2b;--glass:#1a2d44e8;--header:#101b2bea}h1,h2,.numbers strong{font-family:"Playfair Display",Georgia,serif;letter-spacing:-.035em;line-height:1.08}h2{font-size:clamp(31px,4.5vw,51px)}h3,.brand{font-family:Poppins,system-ui,sans-serif}.eyebrow{letter-spacing:.18em}.brand b{color:var(--blue)}.hero{background:#0a2039}.hero:after{background:linear-gradient(180deg,#07162888 5%,#08192cab 61%,#0a1d37ed 100%)}.hero h1{font-size:clamp(47px,7vw,91px);text-wrap:balance}.hero h1 em{color:#f2d596}.hero .eyebrow{color:#f2d596}.hero .lede{font-weight:400}.hero .action{background:linear-gradient(125deg,#f1d89c,#d4af65);border-color:#d4af65;color:#10253e}.hero .secondary{background:#10253eac;color:#fff;border-color:#d6e2f180}.action{background:#173d69;color:white;border-color:#173d69}.action:hover{background:#0e2d50}.secondary{background:var(--surface);color:var(--blue);border-color:var(--line)}.secondary:hover{background:var(--mist)}.numbers article{border-bottom-color:#173d69}.numbers article:nth-child(even){border-bottom-color:var(--gold)}.numbers article span,.tile{background:var(--mist)}.bar .mega-panel,.timeline{border-top-color:var(--gold)}.inner{background:radial-gradient(ellipse at top right,#c5d7ea70,transparent 68%),var(--mist)}footer{background:#0b2039}.footer .brand b{color:#f2d596}.glass{box-shadow:0 6px 20px #10253e0d}.glass:hover{box-shadow:0 18px 32px #10253e21}.directory a:hover{color:var(--blue);background:var(--mist)}.chart .arc{stroke:var(--blue)}:focus-visible{outline-color:#9a6c18!important}html[data-theme=dark] :focus-visible{outline-color:#f2d596!important}

/* Petra Silicon brand and visible page navigation */
header .bar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 0}
header .brand{gap:13px;letter-spacing:.02em;color:var(--ink)}
.brand-mark{display:grid;place-items:center;width:54px;height:54px;padding:6px;background:#fff;border:1px solid #e0d8c8;border-radius:12px;flex:none}
header .brand-mark img{display:block;width:100%;height:100%;object-fit:contain}
.brand-name{font-size:clamp(17px,2vw,23px);font-weight:700;white-space:nowrap}
.brand-name small{font-size:9px;letter-spacing:.17em;margin-top:6px;color:var(--muted)}
.header-actions{display:flex;align-items:center;gap:8px}
.primary-pages{border-top:1px solid var(--line)}
.primary-pages .shell{display:flex;justify-content:center;flex-wrap:wrap;gap:3px 7px;padding-block:7px}
.primary-pages a{display:grid;place-items:center;min-height:36px;padding:4px 7px;border-radius:8px;text-decoration:none;font-size:clamp(11px,1vw,13px);font-weight:600;line-height:1.3;text-align:center}
.primary-pages a:hover,.primary-pages a[aria-current=page]{background:var(--mist);color:var(--blue)}
.primary-pages a[aria-current=page]{box-shadow:inset 0 -2px 0 var(--gold)}
.search-panel{top:calc(100% + 4px)}
:root{scroll-padding-top:164px}
.dossier aside{top:165px}
@media(max-width:1050px){:root{scroll-padding-top:190px}.dossier aside{top:188px}}
@media(max-width:670px){header{position:relative}:root{scroll-padding-top:18px}.primary-pages .shell{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:3px 5px}.primary-pages a{min-height:34px}.header-actions{gap:4px}.header-actions .action{display:none}.brand-mark{width:42px;height:42px;padding:4px}.brand-name small{font-size:8px}.search-panel{width:min(100%,420px)}}
@media(max-width:360px){header .brand{gap:7px}.brand-name{font-size:15px}.theme,.search-toggle{padding-inline:5px}}

.application-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;border:0}.application-gallery article{display:block;border:1px solid var(--line);border-radius:18px;overflow:hidden;padding:0;background:var(--glass);box-shadow:0 6px 20px #10253e12}.application-gallery img{width:100%;height:auto;display:block;aspect-ratio:16/9;object-fit:cover}.application-gallery .industry-copy{padding:20px}.application-gallery h2{font-size:clamp(23px,3vw,32px)}.petra-icon{width:24px;height:24px;display:block;color:var(--blue);stroke:currentColor;fill:none;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}.petra-icon-tile{width:42px;height:42px;display:grid;place-items:center;background:var(--mist);border-radius:12px}.visual-links{padding-block:clamp(45px,6vw,85px)}.visual-links-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.visual-links-grid a{display:block;text-decoration:none;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:var(--glass)}.visual-links-grid img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}.visual-links-grid strong{display:block;padding:16px}.visual-links-grid a:hover strong{color:var(--blue);text-decoration:underline}.product-image{width:100%;height:auto;display:block}.product-caption{margin-bottom:18px}.visual-links-grid a:focus-visible{outline-offset:4px}@media(max-width:670px){.application-gallery,.visual-links-grid{grid-template-columns:1fr}}

.mining-overview{margin-block:30px;padding:clamp(17px,3vw,32px);background:var(--mist);border:1px solid var(--line);border-radius:18px}.mining-overview>p:not(.eyebrow){color:var(--muted)}.lease-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-block:20px}.lease-grid article{padding:clamp(13px,3vw,24px);background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--gold);border-radius:14px}.lease-grid h3{overflow-wrap:anywhere}.lease-grid strong,.lease-grid span{display:block}.lease-grid strong{font-size:clamp(24px,4vw,41px);color:var(--blue)}.lease-note{font-size:14px}.mining-links{display:flex;flex-wrap:wrap;gap:8px}.mining-links a{border:1px solid var(--line);padding:8px 11px;border-radius:9px;background:var(--surface);text-decoration:none}.mining-links a:hover{text-decoration:underline}@media(max-width:420px){.lease-grid{grid-template-columns:1fr}}

.industry-photo{margin:0 0 20px;background:var(--surface)}.industry-photo img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;display:block}.application-gallery .industry-photo{margin:0}.photo-credit{display:block;font-size:11px;line-height:1.5;color:var(--muted);letter-spacing:0}.visual-photo-card{min-width:0}.visual-photo-card>.photo-credit{padding:7px 5px}.visual-photo-card>.photo-credit a{display:inline;border:0;background:none;text-decoration:underline;border-radius:0}

.view-products .rows article:has(.material-photo){grid-template-columns:minmax(135px,210px) minmax(0,1fr);align-items:start}.material-photo img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;background:var(--mist)}.material-photo figcaption{font-size:11px;letter-spacing:0;line-height:1.5}.material-note{color:var(--muted);font-size:14px;margin-top:18px}@media(max-width:580px){.view-products .rows article:has(.material-photo){grid-template-columns:1fr}.material-photo{max-width:420px}}

.editorial-addition{margin-block:26px;padding:clamp(18px,4vw,34px);background:var(--mist);border:1px solid var(--line);border-top:3px solid var(--gold);border-radius:16px}.editorial-addition>p:not(.eyebrow),.buyer-steps p,.buyer-faq p{color:var(--muted)}.buyer-contact{padding-bottom:55px}.buyer-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.buyer-steps article{padding:18px;border:1px solid var(--line);border-radius:14px;background:var(--surface)}.buyer-steps span{display:block;margin-bottom:9px;color:var(--blue);font-weight:700}.buyer-steps h3{font-size:19px}.buyer-steps a{color:var(--blue);font-weight:600}.buyer-faq details{border-top:1px solid var(--line);padding:12px 0}.buyer-faq summary{cursor:pointer;font-weight:600}.buyer-faq p{margin:8px 0 0}@media(max-width:720px){.buyer-steps{grid-template-columns:1fr}}

.rows .detail-copy{margin-top:10px}.section-context{max-width:66ch;color:var(--muted);margin:0 0 20px}.materials-grid .section-context{margin-bottom:12px}