:root {
  --sfi-ink: #07121f;
  --sfi-ink-2: #0a1b2d;
  --sfi-navy: #071421;
  --sfi-blue: #1268e8;
  --sfi-blue-light: #73afff;
  --sfi-steel: #64788a;
  --sfi-line: #d7e1e7;
  --sfi-paper: #f3f6f8;
  --sfi-white: #fff;
  --sfi-max: 1180px;
  --sfi-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --sfi-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: #fff; color: var(--sfi-ink); font-family: var(--sfi-sans); -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; }
.sfi-container { width: min(var(--sfi-max), calc(100% - 48px)); margin-inline: auto; }
.narrow-container { width: min(820px, calc(100% - 48px)); margin-inline: auto; }
.screen-reader-text { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.screen-reader-text:focus { z-index: 100000; top: 8px; left: 8px; width: auto; height: auto; padding: 12px 16px; clip: auto; color: #fff; background: var(--sfi-blue); }
.sfi-section { padding: 112px 0; }
.sfi-kicker, .sfi-eyebrow { font: 650 11px/1.4 var(--sfi-mono); letter-spacing: .13em; text-transform: uppercase; }
.sfi-kicker { margin: 0 0 18px; color: var(--sfi-blue); }
.sfi-eyebrow { display: flex; align-items: center; gap: 10px; margin: 0; color: var(--sfi-blue-light); }
.sfi-eyebrow > span { width: 25px; height: 1px; background: currentColor; }
.sfi-button { display: inline-flex; align-items: center; justify-content: center; gap: 22px; min-height: 52px; padding: 0 22px; border: 1px solid var(--sfi-blue); border-radius: 0; background: var(--sfi-blue); color: #fff; font-size: 13px; font-weight: 750; transition: transform .2s, background .2s, border-color .2s; }
.sfi-button:hover { transform: translateY(-2px); background: #2878e8; border-color: #2878e8; color: #fff; }
.sfi-text-link { display: inline-flex; align-items: center; gap: 12px; padding-bottom: 8px; border-bottom: 1px solid currentColor; color: #195f9f; font-size: 13px; font-weight: 700; }

.utility-bar { position: relative; z-index: 41; height: 34px; color: #8ea3b3; background: #040d16; border-bottom: 1px solid rgba(255,255,255,.08); font: 550 10px/1 var(--sfi-mono); letter-spacing: .08em; text-transform: uppercase; }
.utility-inner { height: 34px; display: flex; align-items: center; justify-content: space-between; }
.site-header { position: relative; z-index: 40; height: 82px; background: #071421; border-bottom: 1px solid rgba(255,255,255,.1); transition: box-shadow .2s; }
.site-header.is-sticky { position: sticky; top: 0; box-shadow: 0 8px 26px rgba(1,10,18,.16); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 30px; }
.site-brand { display: inline-flex; align-items: center; gap: 11px; color: #fff; }
.custom-logo-link { display: inline-flex; }
.custom-logo { max-width: 210px; max-height: 54px; width: auto; }
.brand-copy { display: grid; line-height: 1; }
.brand-copy strong { font-size: 18px; letter-spacing: -.02em; }
.brand-copy small { margin-top: 5px; color: #7da0ba; font: 650 8px/1 var(--sfi-mono); letter-spacing: .17em; }
.brand-mark { position: relative; width: 37px; height: 37px; display: block; border: 2px solid #3f91ff; border-radius: 50%; }
.brand-mark:before, .brand-mark:after, .brand-mark i { content: ""; position: absolute; border: 2px solid #a9d0ff; border-radius: 50%; }
.brand-mark:before { inset: 6px; }
.brand-mark:after { inset: 12px; background: var(--sfi-blue); border-color: var(--sfi-blue); }
.brand-mark i { width: 6px; height: 6px; border: 0; background: #fff; top: -2px; left: 14px; }
.primary-navigation { margin-left: auto; }
.primary-navigation ul { display: flex; align-items: center; gap: 28px; margin: 0; padding: 0; list-style: none; }
.primary-navigation li { position: relative; }
.primary-navigation a { display: block; padding: 29px 0; color: #b8c8d4; font-size: 13px; transition: color .2s; }
.primary-navigation a:hover, .primary-navigation .current-menu-item > a { color: #fff; }
.primary-navigation ul ul { position: absolute; top: 100%; left: -18px; width: 230px; display: block; padding: 10px 0; visibility: hidden; opacity: 0; transform: translateY(8px); background: #0b1c2a; box-shadow: 0 14px 32px rgba(0,0,0,.25); transition: .2s; }
.primary-navigation li:hover > ul, .primary-navigation li:focus-within > ul { visibility: visible; opacity: 1; transform: translateY(0); }
.primary-navigation ul ul a { padding: 10px 18px; }
.header-rfq { min-height: 42px; padding: 0 17px; gap: 15px; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 0; background: transparent; cursor: pointer; }
.menu-toggle > span:not(.screen-reader-text) { display: block; height: 1px; margin: 5px 0; background: #fff; }

.homepage-hero { --sfi-hero-image: none; position: relative; min-height: 700px; overflow: hidden; color: #fff; background-color: #06111d; background-image: linear-gradient(90deg,rgba(4,14,24,.98),rgba(5,17,30,.88) 51%,rgba(5,17,30,.28)), var(--sfi-hero-image), radial-gradient(circle at 80% 42%, #184a75, #091a2b 38%, #06111d 72%); background-position: center; background-size: cover; }
.hero-grid-pattern { position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(rgba(126,171,204,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(126,171,204,.13) 1px,transparent 1px); background-size: 64px 64px; mask-image: linear-gradient(90deg,transparent,#000 55%,#000); }
.hero-layout { position: relative; z-index: 2; min-height: 610px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 55px; align-items: center; }
.hero-copy { padding: 72px 0 52px; }
.hero-copy h1 { max-width: 720px; margin: 22px 0; font-size: clamp(49px,5vw,75px); line-height: .99; letter-spacing: -.055em; font-weight: 650; }
.hero-lede { max-width: 650px; margin: 0; color: #b8c9d5; font-size: 17px; line-height: 1.72; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 34px; }
.hero-actions .sfi-text-link { color: #d4e1ea; }
.hero-proof { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 51px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.13); }
.hero-proof > div { display: grid; gap: 6px; min-height: 47px; padding-right: 16px; border-right: 1px solid rgba(255,255,255,.12); }
.hero-proof > div + div { padding-left: 18px; }
.hero-proof > div:last-child { border: 0; }
.hero-proof strong { font-size: 15px; font-weight: 600; }
.hero-proof span { color: #718da1; font: 550 9px/1.2 var(--sfi-mono); letter-spacing: .08em; text-transform: uppercase; }
.hero-technical { position: relative; min-height: 480px; }
.technical-orbit { position: absolute; width: 400px; height: 400px; top: 32px; right: -15px; border: 1px solid rgba(124,185,239,.18); border-radius: 50%; box-shadow: inset 0 0 120px rgba(40,123,207,.1); }
.technical-orbit:before, .technical-orbit:after { content: ""; position: absolute; border: 1px solid rgba(124,185,239,.14); border-radius: 50%; }
.technical-orbit:before { inset: 55px; }
.technical-orbit:after { inset: 125px; background: rgba(23,105,191,.12); box-shadow: 0 0 50px rgba(47,140,255,.15); }
.technical-orbit i { position: absolute; width: 8px; height: 8px; border-radius: 50%; background: #55a6f7; box-shadow: 0 0 12px #55a6f7; }
.technical-orbit i:nth-child(1) { top: 61px; left: 63px; }
.technical-orbit i:nth-child(2) { right: 45px; top: 190px; }
.technical-orbit i:nth-child(3) { left: 168px; bottom: 23px; }
.technical-card { position: absolute; z-index: 2; top: 90px; left: 18px; display: grid; gap: 5px; width: 185px; padding: 15px; background: rgba(7,20,33,.77); border: 1px solid rgba(130,182,225,.22); backdrop-filter: blur(10px); }
.technical-card-bottom { top: auto; left: auto; right: 0; bottom: 78px; }
.technical-card small { color: #61a4eb; font: 650 8px/1.2 var(--sfi-mono); letter-spacing: .12em; }
.technical-card strong { font-size: 12px; }
.technical-card span { color: #728b9d; font-size: 10px; }
.capability-strip { position: relative; z-index: 2; height: 58px; display: flex; align-items: center; gap: 24px; color: #718a9e; border-top: 1px solid rgba(255,255,255,.1); font: 550 9px/1 var(--sfi-mono); letter-spacing: .09em; text-transform: uppercase; }
.capability-strip i { width: 3px; height: 3px; border-radius: 50%; background: #2c78c6; }

.category-section { background: var(--sfi-paper); }
.section-heading { margin-bottom: 50px; }
.section-heading h2, .engineering-copy h2, .process-heading h2, .rfq-layout h2 { margin: 0; font-size: clamp(38px,4vw,57px); line-height: 1.06; letter-spacing: -.045em; font-weight: 650; }
.split-heading { display: grid; grid-template-columns: 1.1fr .7fr; gap: 90px; align-items: end; }
.split-heading > p { margin: 0; color: var(--sfi-steel); font-size: 15px; line-height: 1.75; }
.product-category-grid { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid #cbd7df; border-left: 1px solid #cbd7df; }
.category-card { min-height: 365px; display: flex; flex-direction: column; padding: 25px; background: rgba(255,255,255,.42); border-right: 1px solid #cbd7df; border-bottom: 1px solid #cbd7df; transition: background .2s,transform .2s,box-shadow .2s; }
.category-card:hover { z-index: 2; background: #fff; transform: translateY(-4px); box-shadow: 0 24px 50px rgba(30,58,79,.08); }
.category-media { height: 112px; display: flex; align-items: center; justify-content: flex-end; overflow: hidden; }
.category-media img { width: 120px; height: 105px; object-fit: contain; }
.seal-placeholder { position: relative; width: 82px; height: 82px; border: 15px solid #1a3142; border-radius: 50%; box-shadow: inset 3px 4px 5px rgba(255,255,255,.18),8px 13px 14px rgba(24,45,59,.16); }
.seal-placeholder:after { content: ""; position: absolute; inset: -8px; border: 1px solid rgba(24,104,186,.26); border-radius: 50%; }
.category-number { margin-top: -19px; color: #8ba0ae; font: 550 10px/1 var(--sfi-mono); }
.category-card h3 { margin: 23px 0 10px; font-size: 21px; letter-spacing: -.02em; }
.category-card p { margin: 0; color: #687d8c; font-size: 13px; line-height: 1.65; }
.category-card > a { display: flex; justify-content: space-between; margin-top: auto; padding-top: 18px; border-top: 1px solid #e0e8ed; color: #1e65a8; font-size: 12px; font-weight: 700; }

.engineering-section { background: #fff; }
.engineering-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 95px; }
.engineering-copy { align-self: start; position: sticky; top: 112px; }
.engineering-copy > p:not(.sfi-kicker) { margin: 23px 0 28px; color: var(--sfi-steel); font-size: 15px; line-height: 1.8; }
.engineering-inputs { border-top: 1px solid var(--sfi-line); }
.engineering-row { min-height: 86px; display: grid; grid-template-columns: 42px 145px 1fr; gap: 18px; align-items: center; border-bottom: 1px solid var(--sfi-line); }
.engineering-row > span { color: #8ca1af; font: 550 10px/1 var(--sfi-mono); }
.engineering-row strong { font-size: 15px; }
.engineering-row p { margin: 0; color: #6b808f; font-size: 13px; line-height: 1.55; }

.process-section { padding: 105px 0; color: #fff; background: linear-gradient(120deg,#0c2236,#06111d); }
.process-heading { display: grid; grid-template-columns: 1fr 340px; gap: 80px; align-items: end; margin-bottom: 58px; }
.process-heading h2 { margin-top: 17px; }
.process-heading > p { margin: 0; color: #8097a8; font-size: 14px; line-height: 1.7; }
.process-grid { display: grid; grid-template-columns: repeat(5,1fr); }
.process-grid article { min-height: 245px; padding-right: 22px; }
.process-grid article:not(:last-child) { margin-right: 22px; border-right: 1px solid rgba(255,255,255,.12); }
.process-grid span { color: #5897d0; font: 600 10px/1 var(--sfi-mono); }
.process-grid i { display: block; width: 8px; height: 8px; margin: 24px 0 29px; border: 2px solid #5aa7f4; border-radius: 50%; box-shadow: 0 0 0 7px rgba(52,136,219,.11); }
.process-grid h3 { margin: 0 0 12px; font-size: 16px; }
.process-grid p { margin: 0; color: #7b91a2; font-size: 12px; line-height: 1.7; }

.featured-products { background: #fff; }
.resources-section { background: var(--sfi-paper); }
.article-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.article-card { display: flex; flex-direction: column; min-width: 0; background: #fff; border: 1px solid var(--sfi-line); }
.article-image { position: relative; aspect-ratio: 16/10; overflow: hidden; background: #0b1b29; }
.article-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.article-card:hover .article-image img { transform: scale(1.035); }
.article-placeholder { position: absolute; inset: 0; background: radial-gradient(circle at 70% 45%,rgba(56,140,229,.28),transparent 27%),linear-gradient(145deg,#0e2b44,#06121e); }
.article-placeholder:before { content: ""; position: absolute; width: 110px; height: 110px; left: calc(50% - 55px); top: calc(50% - 55px); border: 1px solid rgba(120,181,235,.26); border-radius: 50%; box-shadow: inset 0 0 0 22px rgba(42,121,197,.08),inset 0 0 0 42px rgba(42,121,197,.05); }
.article-card-body { display: flex; flex: 1; flex-direction: column; padding: 24px; }
.post-meta { color: #4b85bb; font: 550 9px/1.4 var(--sfi-mono); letter-spacing: .05em; text-transform: uppercase; }
.article-card h3 { margin: 15px 0 11px; font-size: 20px; line-height: 1.3; letter-spacing: -.02em; }
.article-card p { margin: 0; color: #6b7f8d; font-size: 13px; line-height: 1.7; }
.card-link { display: flex; justify-content: space-between; margin-top: 24px; padding-top: 16px; border-top: 1px solid #e1e7eb; color: #2166a5; font-size: 12px; font-weight: 700; }

.rfq-band { position: relative; padding: 110px 0; overflow: hidden; color: #fff; background: #06111d; }
.rfq-band:before { content: ""; position: absolute; inset: 0; opacity: .18; background-image: linear-gradient(rgba(104,157,196,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(104,157,196,.13) 1px,transparent 1px); background-size: 58px 58px; }
.rfq-layout { position: relative; display: grid; grid-template-columns: .85fr 1.15fr; gap: 90px; align-items: start; }
.rfq-layout h2 { margin: 18px 0 23px; }
.rfq-layout > div:first-child > p:last-child { color: #8ca1b0; font-size: 15px; line-height: 1.8; }

.site-footer { padding: 72px 0 23px; color: #8fa2b0; background: #040c14; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.35fr; gap: 58px; }
.footer-brand { display: inline-flex; }
.footer-about > p { max-width: 300px; margin: 24px 0 0; font-size: 12px; line-height: 1.7; }
.footer-grid > div:not(.footer-about) { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.footer-grid h3 { margin: 0 0 10px; color: #e9f0f4; font: 650 10px/1 var(--sfi-mono); letter-spacing: .1em; text-transform: uppercase; }
.footer-grid a, .footer-grid p { font-size: 11px; line-height: 1.65; }
.footer-grid a:hover { color: #fff; }
.footer-contact p { margin: 0; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 58px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); font: 500 9px/1.5 var(--sfi-mono); }

.archive-hero, .page-hero, .shop-hero, .single-hero { padding: 88px 0; color: #fff; background: radial-gradient(circle at 80% 45%,#153f63,transparent 35%),linear-gradient(120deg,#07131f,#0b2034); }
.archive-hero h1, .page-hero h1, .shop-hero h1, .single-hero h1 { max-width: 900px; margin: 0; font-size: clamp(43px,5vw,70px); line-height: 1.03; letter-spacing: -.05em; }
.archive-hero p, .page-hero > div > p:last-child, .shop-hero p, .single-hero p { max-width: 720px; margin: 21px 0 0; color: #9eb1bf; font-size: 16px; line-height: 1.7; }
.archive-description p { margin-bottom: 0; }
.archive-header { margin-bottom: 45px; }
.archive-header h1 { margin: 0; font-size: clamp(40px,4vw,58px); }
.single-hero .post-meta { margin-bottom: 20px; }
.single-featured { margin-top: 55px; }
.single-featured img { width: 100%; max-height: 660px; object-fit: cover; }
.article-content, .page-content { padding-top: 72px; padding-bottom: 72px; font-size: 17px; line-height: 1.85; }
.page-content { padding-top: 0; padding-bottom: 0; }
.article-content h2, .page-content h2 { margin: 2.1em 0 .7em; font-size: 34px; line-height: 1.2; letter-spacing: -.03em; }
.article-content h3, .page-content h3 { margin: 1.8em 0 .6em; font-size: 24px; }
.article-content a, .page-content a { color: var(--sfi-blue); text-decoration: underline; }
.article-content img, .page-content img { margin-block: 24px; }
.article-content table, .page-content table { width: 100%; border-collapse: collapse; font-size: 14px; }
.article-content th, .article-content td, .page-content th, .page-content td { padding: 12px; border: 1px solid var(--sfi-line); text-align: left; }
.article-footer { padding-bottom: 60px; }
.tag-list a { display: inline-block; margin: 0 6px 6px 0; padding: 6px 9px; border: 1px solid var(--sfi-line); color: var(--sfi-steel); font-size: 11px; }
.post-navigation-wrap { margin-bottom: 90px; }
.nav-links { display: flex; justify-content: space-between; gap: 30px; }
.page-numbers { display: inline-flex; min-width: 38px; height: 38px; align-items: center; justify-content: center; margin: 30px 4px 0 0; border: 1px solid var(--sfi-line); font-size: 12px; }
.page-numbers.current { color: #fff; background: var(--sfi-blue); border-color: var(--sfi-blue); }
.error-page { min-height: 600px; display: flex; align-items: center; padding: 90px 0; }
.error-page h1 { margin: 0 0 20px; font-size: clamp(45px,5vw,72px); line-height: 1; letter-spacing: -.05em; }
.error-page form { margin: 28px 0; }
.search-form { display: flex; max-width: 520px; }
.search-form label { flex: 1; }
.search-form input[type="search"] { width: 100%; height: 48px; padding: 0 13px; border: 1px solid var(--sfi-line); }
.search-form input[type="submit"] { padding: 0 18px; border: 0; color: #fff; background: var(--sfi-blue); cursor: pointer; }

/* WooCommerce catalog */
.woocommerce-main .sfi-section { padding-top: 80px; }
.woocommerce-breadcrumb { margin-bottom: 28px !important; color: #7a8f9e !important; font-size: 11px !important; }
.sfi-shop-intro { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 28px; padding-bottom: 21px; border-bottom: 1px solid var(--sfi-line); }
.sfi-shop-intro .sfi-kicker { margin: 0; }
.sfi-shop-intro > p:last-child { max-width: 600px; margin: 0; color: var(--sfi-steel); font-size: 13px; line-height: 1.6; }
.woocommerce .woocommerce-ordering select { height: 40px; padding: 0 12px; border: 1px solid var(--sfi-line); background: #fff; }
.woocommerce ul.products { display: grid !important; grid-template-columns: repeat(3,1fr); gap: 22px; margin-top: 40px !important; }
.woocommerce ul.products:before, .woocommerce ul.products:after { display: none !important; }
.woocommerce ul.products li.product { width: auto !important; float: none !important; margin: 0 !important; padding: 0 0 22px !important; border: 1px solid var(--sfi-line); background: #fff; }
.woocommerce ul.products li.product a img { aspect-ratio: 1/1; margin: 0 0 21px !important; object-fit: cover; background: var(--sfi-paper); }
.woocommerce ul.products li.product .woocommerce-loop-product__title { padding: 0 21px !important; color: var(--sfi-ink); font-size: 17px !important; line-height: 1.35; }
.woocommerce ul.products li.product .price { display: none; }
.woocommerce ul.products li.product .button { margin: 12px 21px 0 !important; padding: 11px 0 !important; color: #1c67ad !important; background: transparent !important; border-bottom: 1px solid #9fbdd6 !important; border-radius: 0 !important; font-size: 12px !important; }
.woocommerce span.onsale { display: none; }
.single-product div.product { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.single-product div.product .woocommerce-product-gallery, .single-product div.product .summary { width: auto !important; float: none !important; }
.single-product div.product .summary { padding-top: 20px; }
.sfi-product-eyebrow { color: var(--sfi-blue); font: 650 9px/1.4 var(--sfi-mono); letter-spacing: .12em; }
.single-product .product_title { margin: 13px 0 18px; font-size: clamp(36px,4vw,55px); line-height: 1.05; letter-spacing: -.045em; }
.single-product .price, .single-product form.cart { display: none !important; }
.woocommerce-product-details__short-description { color: var(--sfi-steel); font-size: 15px; line-height: 1.8; }
.product_meta { margin-top: 25px; padding-top: 20px; border-top: 1px solid var(--sfi-line); color: #718694; font-size: 11px; line-height: 1.8; }
.woocommerce div.product .woocommerce-tabs { grid-column: 1/-1; padding-top: 45px; }
.woocommerce div.product .woocommerce-tabs ul.tabs { padding: 0 !important; border-bottom: 1px solid var(--sfi-line); }
.woocommerce div.product .woocommerce-tabs ul.tabs:before { display: none !important; }
.woocommerce div.product .woocommerce-tabs ul.tabs li { margin: 0 18px 0 0 !important; padding: 0 !important; border: 0 !important; background: transparent !important; }
.woocommerce div.product .woocommerce-tabs ul.tabs li a { padding: 14px 0 !important; font-size: 13px; }
.woocommerce div.product .woocommerce-tabs ul.tabs li.active a { color: var(--sfi-blue) !important; border-bottom: 2px solid var(--sfi-blue); }
.woocommerce div.product .woocommerce-tabs .panel { max-width: 850px; font-size: 15px; line-height: 1.8; }
.woocommerce-message, .woocommerce-info { border-top-color: var(--sfi-blue) !important; }
.woocommerce-info:before { color: var(--sfi-blue) !important; }

/* Detailed conversion pages and taxonomy sidebars */
.catalog-layout, .content-with-sidebar { display: grid; grid-template-columns: 265px minmax(0,1fr); gap: 48px; align-items: start; }
.catalog-main, .news-main { min-width: 0; }
.sfi-sidebar { position: sticky; top: 120px; }
.sidebar-widget { margin-bottom: 22px; padding: 25px; border: 1px solid var(--sfi-line); background: #fff; }
.sidebar-widget h2 { margin: 0 0 18px; font-size: 17px; line-height: 1.3; letter-spacing: -.02em; }
.sidebar-category-list { margin: 0; padding: 0; list-style: none; }
.sidebar-category-list li { border-top: 1px solid var(--sfi-line); }
.sidebar-category-list a { display: flex; justify-content: space-between; gap: 12px; padding: 12px 0; color: var(--sfi-steel); font-size: 12px; line-height: 1.45; }
.sidebar-category-list a:hover, .sidebar-category-list .current-cat > a, .sidebar-category-list .is-current > a { color: var(--sfi-blue); }
.sidebar-category-list small { color: #8ca0ad; font: 600 9px/1.6 var(--sfi-mono); }
.sidebar-rfq { padding: 28px 25px; color: #fff; background: var(--sfi-navy, #071421); }
.sidebar-rfq small { color: #8eb8da; font: 650 9px/1.4 var(--sfi-mono); letter-spacing: .12em; }
.sidebar-rfq h3 { margin: 12px 0 10px; color: #fff; font-size: 22px; line-height: 1.2; }
.sidebar-rfq p { margin: 0 0 18px; color: #b9c9d4; font-size: 12px; line-height: 1.7; }
.sidebar-rfq a { color: #fff; font-size: 12px; font-weight: 650; border-bottom: 1px solid rgba(255,255,255,.45); }

.detail-hero { padding: 92px 0 84px; color: #fff; background: linear-gradient(118deg,#061522 0%,#0c2b42 72%,#0b395a 100%); }
.detail-hero-grid { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(280px,.75fr); gap: 72px; align-items: end; }
.detail-hero h1 { max-width: 840px; margin: 14px 0 0; color: #fff; font-size: clamp(46px,6vw,82px); line-height: .98; letter-spacing: -.055em; }
.detail-hero-grid > p { margin: 0; padding-left: 25px; border-left: 1px solid rgba(255,255,255,.23); color: #c2d0da; font-size: 15px; line-height: 1.8; }
.intro-section { background: #fff; }
.page-intro-grid { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr); gap: 90px; }
.page-intro-grid h2, .contact-lead h2 { margin: 12px 0 0; font-size: clamp(36px,4.5vw,58px); line-height: 1.04; letter-spacing: -.045em; }
.page-intro-grid > div:last-child { color: var(--sfi-steel); font-size: 15px; line-height: 1.85; }
.detail-cards-section, .material-detail-section, .inspection-section, .capability-page-section, .contact-process { background: var(--sfi-paper); }
.detail-card-grid, .inspection-grid, .capability-page-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; margin-top: 42px; }
.detail-card-grid article, .inspection-grid article, .capability-page-grid article { padding: 30px; border: 1px solid var(--sfi-line); background: #fff; }
.detail-card-grid h3, .inspection-grid h3, .capability-page-grid h3 { margin: 13px 0 12px; font-size: 21px; line-height: 1.25; }
.detail-card-grid p, .inspection-grid p, .capability-page-grid p { margin: 0; color: var(--sfi-steel); font-size: 13px; line-height: 1.75; }
.detail-code { color: var(--sfi-blue); font: 650 10px/1.4 var(--sfi-mono); letter-spacing: .12em; }
.application-card-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
.application-card-grid ul, .material-detail-grid ul { margin: 17px 0 0; padding-left: 18px; color: var(--sfi-steel); font-size: 12px; line-height: 1.8; }

.decision-section { padding: 95px 0; color: #fff; background: var(--sfi-navy, #071421); }
.decision-grid { display: grid; grid-template-columns: minmax(0,.85fr) minmax(0,1.15fr); gap: 88px; }
.decision-grid h2 { margin: 14px 0 18px; color: #fff; font-size: clamp(38px,4.5vw,58px); line-height: 1.04; letter-spacing: -.045em; }
.decision-grid > div:first-child > p:last-child { color: #aebfca; line-height: 1.8; }
.decision-list > div { display: grid; grid-template-columns: 38px 150px 1fr; gap: 15px; padding: 19px 0; border-top: 1px solid rgba(255,255,255,.13); }
.decision-list span { color: #69a7d5; font: 650 10px/1.5 var(--sfi-mono); }
.decision-list strong { color: #fff; font-size: 13px; }
.decision-list p { margin: 0; color: #aebfca; font-size: 12px; line-height: 1.65; }

.faq-page-grid { display: grid; grid-template-columns: minmax(230px,.55fr) minmax(0,1.45fr); gap: 85px; }
.faq-page-grid h2 { margin: 12px 0 0; font-size: clamp(36px,4vw,53px); line-height: 1.05; letter-spacing: -.04em; }
.faq-list details { border-top: 1px solid var(--sfi-line); }
.faq-list details:last-child { border-bottom: 1px solid var(--sfi-line); }
.faq-list summary { position: relative; padding: 22px 42px 22px 0; color: var(--sfi-ink); font-weight: 650; cursor: pointer; list-style: none; }
.faq-list summary:after { content: '+'; position: absolute; right: 6px; color: var(--sfi-blue); font-size: 20px; }
.faq-list details[open] summary:after { content: '−'; }
.faq-list p { margin: -5px 0 23px; color: var(--sfi-steel); font-size: 13px; line-height: 1.75; }
.page-cta { padding: 55px 0; color: #fff; background: var(--sfi-blue); }
.page-cta .sfi-container { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.page-cta h2 { margin: 8px 0 0; color: #fff; font-size: clamp(30px,4vw,46px); letter-spacing: -.04em; }
.light-button { color: var(--sfi-navy, #071421) !important; background: #fff !important; border-color: #fff !important; white-space: nowrap; }

.material-detail-grid { display: grid; gap: 20px; margin-top: 42px; }
.material-detail-grid article { display: grid; grid-template-columns: 105px 1fr; gap: 34px; padding: 36px; border: 1px solid var(--sfi-line); background: #fff; }
.material-badge { display: flex; width: 82px; height: 82px; align-items: center; justify-content: center; color: #fff; background: var(--sfi-blue); font: 700 17px/1 var(--sfi-mono); }
.material-detail-grid h3 { margin: 0 0 12px; font-size: 28px; letter-spacing: -.03em; }
.material-detail-grid h4 { margin: 22px 0 7px; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; }
.material-detail-grid p { color: var(--sfi-steel); font-size: 13px; line-height: 1.75; }
.material-limit { margin-top: 18px; padding: 15px 18px; background: var(--sfi-paper); }
.comparison-section { background: #fff; }
.responsive-table { margin-top: 38px; overflow-x: auto; border: 1px solid var(--sfi-line); }
.responsive-table table { width: 100%; min-width: 760px; border-collapse: collapse; }
.responsive-table th, .responsive-table td { padding: 17px 18px; border-bottom: 1px solid var(--sfi-line); text-align: left; vertical-align: top; font-size: 12px; line-height: 1.6; }
.responsive-table th { color: #fff; background: var(--sfi-navy, #071421); font: 650 10px/1.5 var(--sfi-mono); letter-spacing: .07em; }

.quality-flow-section { background: #fff; }
.quality-flow-grid { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); margin-top: 42px; border: 1px solid var(--sfi-line); }
.quality-flow-grid article { min-height: 225px; padding: 27px 23px; border-right: 1px solid var(--sfi-line); }
.quality-flow-grid article:last-child { border-right: 0; }
.quality-flow-grid span, .contact-process-grid span { color: var(--sfi-blue); font: 650 10px/1.4 var(--sfi-mono); }
.quality-flow-grid h3 { margin: 45px 0 10px; font-size: 18px; }
.quality-flow-grid p { color: var(--sfi-steel); font-size: 12px; line-height: 1.65; }
.company-numbers { padding: 35px 0; color: #fff; background: var(--sfi-blue); }
.company-number-grid { display: grid; grid-template-columns: repeat(3,1fr); }
.company-number-grid div { padding: 10px 28px; border-right: 1px solid rgba(255,255,255,.28); }
.company-number-grid div:last-child { border-right: 0; }
.company-number-grid strong { display: block; color: #fff; font-size: 24px; }
.company-number-grid span { color: #d7e9f6; font-size: 11px; }
.why-section { background: #fff; }
.why-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 80px; }
.why-grid h2 { margin: 12px 0; font-size: clamp(38px,4vw,54px); line-height: 1.04; letter-spacing: -.04em; }
.why-grid > div:last-child { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.why-grid article { padding: 25px; border: 1px solid var(--sfi-line); }
.why-grid article h3 { margin: 0 0 9px; font-size: 18px; }
.why-grid article p { margin: 0; color: var(--sfi-steel); font-size: 12px; line-height: 1.7; }

.contact-information-grid { display: grid; grid-template-columns: minmax(0,.75fr) minmax(0,1.25fr); gap: 75px; }
.contact-lead > p:last-child { color: var(--sfi-steel); font-size: 14px; line-height: 1.8; }
.contact-cards { display: grid; grid-template-columns: repeat(2,1fr); border-top: 1px solid var(--sfi-line); border-left: 1px solid var(--sfi-line); }
.contact-cards article { padding: 25px; border-right: 1px solid var(--sfi-line); border-bottom: 1px solid var(--sfi-line); }
.contact-cards small, .drawing-note small { display: block; margin-bottom: 13px; color: var(--sfi-blue); font: 650 9px/1.4 var(--sfi-mono); letter-spacing: .1em; }
.contact-cards a, .contact-cards strong { display: block; color: var(--sfi-ink); font-size: 14px; line-height: 1.55; overflow-wrap: anywhere; }
.contact-cards p { margin: 10px 0 0; color: var(--sfi-steel); font-size: 11px; line-height: 1.6; }
.rfq-page-section { padding: 95px 0; color: #fff; background: var(--sfi-navy, #071421); }
.rfq-page-grid { display: grid; grid-template-columns: minmax(0,.95fr) minmax(360px,1.05fr); gap: 75px; align-items: start; }
.rfq-guidance h2 { margin: 14px 0 16px; color: #fff; font-size: clamp(38px,4vw,56px); line-height: 1.03; letter-spacing: -.045em; }
.rfq-guidance > p { color: #aebfca; font-size: 13px; line-height: 1.75; }
.rfq-guidance ol { margin: 28px 0 0; padding: 0; counter-reset: rfq; list-style: none; }
.rfq-guidance li { position: relative; padding: 15px 0 15px 42px; border-top: 1px solid rgba(255,255,255,.13); counter-increment: rfq; }
.rfq-guidance li:before { content: '0' counter(rfq); position: absolute; left: 0; top: 18px; color: #69a7d5; font: 650 9px/1.4 var(--sfi-mono); }
.rfq-guidance li strong, .rfq-guidance li span { display: block; }
.rfq-guidance li strong { color: #fff; font-size: 13px; }
.rfq-guidance li span { margin-top: 4px; color: #aebfca; font-size: 11px; line-height: 1.6; }
.drawing-note { margin-top: 22px; padding: 19px; border: 1px solid rgba(255,255,255,.16); }
.drawing-note p { margin: 0; color: #b8c8d2; font-size: 11px; line-height: 1.65; }
.rfq-form-column .sfi-rfq-form { margin: 0; }
.contact-process-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; margin-top: 40px; background: var(--sfi-line); border: 1px solid var(--sfi-line); }
.contact-process-grid article { min-height: 220px; padding: 28px 25px; background: #fff; }
.contact-process-grid h3 { margin: 48px 0 10px; font-size: 19px; }
.contact-process-grid p { color: var(--sfi-steel); font-size: 12px; line-height: 1.65; }
.footer-grid > div:not(.footer-about) > span { display: block; margin-bottom: 9px; color: #a8bac7; font-size: 12px; line-height: 1.55; }

@media (max-width: 1050px) {
  .primary-navigation ul { gap: 18px; }
  .header-rfq { display: none; }
  .hero-layout { grid-template-columns: 1fr .7fr; }
  .product-category-grid { grid-template-columns: repeat(2,1fr); }
  .engineering-layout, .rfq-layout { gap: 52px; }
  .process-grid { grid-template-columns: repeat(3,1fr); row-gap: 40px; }
  .footer-grid { grid-template-columns: repeat(2,1fr); }
  .detail-card-grid, .application-card-grid, .inspection-grid, .capability-page-grid { grid-template-columns: repeat(2,1fr); }
  .quality-flow-grid { grid-template-columns: repeat(3,1fr); }
  .quality-flow-grid article { border-bottom: 1px solid var(--sfi-line); }
  .contact-information-grid, .rfq-page-grid { gap: 45px; }
}

@media (max-width: 820px) {
  .utility-inner > span:last-child { display: none; }
  .utility-inner { justify-content: center; }
  .menu-toggle { display: block; margin-left: auto; }
  .primary-navigation { position: fixed; inset: 116px 0 0; display: none; margin: 0; padding: 28px 24px; overflow-y: auto; background: #071421; }
  .menu-open .primary-navigation { display: block; }
  .primary-navigation ul { display: block; }
  .primary-navigation a { padding: 14px 0; font-size: 16px; border-bottom: 1px solid rgba(255,255,255,.1); }
  .primary-navigation ul ul { position: static; width: auto; display: block; padding: 0 0 0 18px; visibility: visible; opacity: 1; transform: none; box-shadow: none; }
  .hero-layout { grid-template-columns: 1fr; min-height: auto; }
  .hero-copy { padding-top: 90px; }
  .hero-technical { min-height: 280px; }
  .technical-orbit { right: 50%; transform: translateX(50%); width: 330px; height: 330px; }
  .split-heading, .engineering-layout, .process-heading, .rfq-layout { grid-template-columns: 1fr; gap: 32px; }
  .engineering-copy { position: static; }
  .article-grid { grid-template-columns: repeat(2,1fr); }
  .woocommerce ul.products { grid-template-columns: repeat(2,1fr); }
  .single-product div.product { grid-template-columns: 1fr; }
  .catalog-layout, .content-with-sidebar { grid-template-columns: 1fr; }
  .sfi-sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .detail-hero-grid, .page-intro-grid, .decision-grid, .faq-page-grid, .why-grid, .contact-information-grid, .rfq-page-grid { grid-template-columns: 1fr; gap: 42px; }
  .detail-hero-grid > p { padding: 20px 0 0; border-top: 1px solid rgba(255,255,255,.23); border-left: 0; }
  .company-number-grid { grid-template-columns: 1fr; }
  .company-number-grid div { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.28); }
  .company-number-grid div:last-child { border-bottom: 0; }
  .contact-process-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 560px) {
  .sfi-container, .narrow-container { width: min(100% - 32px,var(--sfi-max)); }
  .sfi-section { padding: 76px 0; }
  .site-header { height: 70px; }
  .primary-navigation { inset: 104px 0 0; }
  .homepage-hero { min-height: auto; }
  .hero-copy h1 { font-size: 47px; }
  .hero-lede { font-size: 15px; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 10px; }
  .hero-actions .sfi-text-link { justify-content: center; }
  .hero-proof { grid-template-columns: 1fr; gap: 13px; }
  .hero-proof > div, .hero-proof > div + div { padding: 0 0 12px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .hero-technical { min-height: 230px; transform: scale(.85); transform-origin: top center; margin-bottom: -35px; }
  .capability-strip { overflow-x: auto; white-space: nowrap; }
  .section-heading h2, .engineering-copy h2, .process-heading h2, .rfq-layout h2 { font-size: 40px; }
  .product-category-grid, .article-grid, .woocommerce ul.products { grid-template-columns: 1fr; }
  .category-card { min-height: 335px; }
  .engineering-row { grid-template-columns: 31px 93px 1fr; gap: 9px; }
  .process-grid { grid-template-columns: 1fr; }
  .process-grid article { position: relative; min-height: auto; padding: 0 0 30px 44px; }
  .process-grid article:not(:last-child) { margin: 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .process-grid i { position: absolute; left: 7px; top: 3px; margin: 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 38px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
  .archive-hero, .page-hero, .shop-hero, .single-hero { padding: 66px 0; }
  .archive-hero h1, .page-hero h1, .shop-hero h1, .single-hero h1 { font-size: 44px; }
  .sfi-shop-intro { align-items: flex-start; flex-direction: column; }
  .sfi-sidebar, .detail-card-grid, .application-card-grid, .inspection-grid, .capability-page-grid, .why-grid > div:last-child, .contact-cards, .contact-process-grid, .quality-flow-grid { grid-template-columns: 1fr; }
  .detail-hero { padding: 70px 0 62px; }
  .detail-hero h1 { font-size: 46px; }
  .material-detail-grid article { grid-template-columns: 1fr; padding: 25px; }
  .decision-list > div { grid-template-columns: 32px 1fr; }
  .decision-list p { grid-column: 2; }
  .page-cta .sfi-container { align-items: flex-start; flex-direction: column; }
  .quality-flow-grid article { min-height: auto; border-right: 0; }
  .quality-flow-grid h3, .contact-process-grid h3 { margin-top: 25px; }
  .rfq-page-grid { grid-template-columns: minmax(0,1fr); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*:before,*:after { transition: none !important; }
}