/* Shared physical-property baseline: iOS 12 / Chrome 60, with readable no-Grid fallback. */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}body{min-width:280px}main,section,article,aside,fieldset,form{min-width:0}img{max-width:100%}svg.icon{display:inline-block;width:20px;height:20px;vertical-align:middle;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
button,input,select,textarea{font-size:16px}button,.button{min-height:44px}input[type=checkbox]{flex-shrink:0}button:focus,a:focus,input:focus,select:focus,textarea:focus,summary:focus{outline:2px solid #1689ee;outline-offset:3px}
.hero h1{font-size:56px}.interior .page-heading h1{font-size:46px}.auth-editorial h2{font-size:40px}.site-shell-top,.site-shell-navigation,.unified-footer{padding-left:4%;padding-right:4%}.interior .page{padding-left:4%;padding-right:4%}
.search input{min-width:0;width:100%}.search button{flex-shrink:0}.parameter-panel legend{float:none;display:block}.parameter-panel legend .spec-icon{display:inline-block;vertical-align:top;margin-right:12px}.parameter-panel legend>span:last-child{display:inline-block;vertical-align:top}.parameter-fields{clear:both}.parameter-fields label{display:block}.parameter-fields input,.parameter-fields select{width:100%;min-width:0;font-size:16px;min-height:46px}.supplier-status{word-wrap:break-word}.share>a,.share>button{min-height:44px}.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}.source-reference{word-wrap:break-word;word-break:break-word}.technical-keyfacts{border-top:1px solid #d8e3ec;border-bottom:1px solid #d8e3ec}.section-tabs{overflow-x:auto;-webkit-overflow-scrolling:touch}.section-tabs a{flex-shrink:0;min-height:44px}.auth-panel-inner{min-width:0}.auth-form input{font-size:16px}
/* Use margins on flexible rows on every engine; no flex-gap dependency. */
.site-shell-top,.site-shell-utility,.site-shell-navigation>nav,.site-shell-tools,.unified-brand,.share,.protocol-options,.tabs,.hero-actions,.parameter-actions,.footer-bottom,.mobile-utility{gap:0}
.unified-symbol{margin-right:10px}.site-shell-context{margin-left:30px}.site-shell-utility>a{margin-left:28px}.site-shell-navigation>nav>a{margin-right:26px}.site-shell-tools>a{margin-left:18px}.share>a,.share>button{margin:5px 18px 5px 0}.share>strong{margin-right:20px}.share .icon{margin-right:8px!important}.protocol-options label{margin:5px 16px 5px 0}.protocol-options input{margin-right:7px}.tabs>a{margin:4px 0 4px 8px}.hero-actions>a{margin:8px 20px 8px 0}.parameter-actions>*{margin-top:6px;margin-bottom:6px}.parameter-actions .clear-filters{margin-right:16px}.parameter-actions .button{margin-left:auto}.footer-bottom>*{margin-right:20px}.mobile-utility>a{margin-right:24px}.auth-google svg{margin-right:12px}.auth-steps>div>span{margin-right:16px}.auth-back .icon{margin-left:10px}.auth-form{grid-row-gap:9px}.spec-columns{grid-gap:26px}.parameter-fields{grid-gap:14px 17px}.unified-footer{grid-gap:40px}
/* Tablet is a directory workspace, not a stretched phone. */
@media(min-width:701px) and (max-width:1100px){
 .site-shell-top{min-height:78px}.site-shell-context{display:none}.site-shell-utility{display:flex;font-size:14px}.site-shell-utility>a{margin-left:20px}.site-menu-toggle{display:none}.site-shell-navigation,.site-shell-header.is-open .site-shell-navigation{display:flex;flex-direction:row;flex-wrap:wrap;padding:0 4%;min-height:54px}.site-shell-navigation>nav{display:flex;flex-wrap:wrap;grid-gap:0}.site-shell-navigation>nav>a{font-size:14px;min-height:52px;margin-right:22px}.site-shell-tools{display:flex;flex-wrap:wrap;width:100%;border-top:1px solid #36506a;padding:10px 0}.site-shell-tools>a{margin:0 22px 0 0;min-height:40px}.mobile-utility{display:none}
 .hero{display:grid;grid-template-columns:minmax(0,1fr) 220px;grid-gap:28px;padding:34px 4% 48px;min-height:0}.hero h1{font-size:42px;letter-spacing:-1.4px;line-height:1.12}.hero p{font-size:18px}.hero .search{height:auto;min-height:48px}.hero .search button{min-width:88px;padding:0 12px}.hero .search input{font-size:16px;padding-left:10px}.hero .search>svg{margin-left:12px;margin-right:6px}.hero-evidence{margin:0;padding:0 0 0 24px;border-top:0;border-left:1px solid #42607e}.hero-evidence h2{font-size:17px}.hero-evidence a{font-size:14px}.hero-evidence p{font-size:13px!important}
 .parameter-panel{padding:26px 24px 20px;margin:-18px 4% 30px}.spec-columns{display:grid;grid-template-columns:1fr 1fr;grid-gap:24px}.parameter-panel fieldset{padding:0;border:0;margin:0;min-width:0}.parameter-panel fieldset:last-child{grid-column:1/-1;border-top:1px solid #d8e3ec;padding-top:22px}.parameter-panel legend{font-size:21px;margin-bottom:16px}.parameter-fields{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px 16px}.parameter-panel fieldset:last-child .parameter-fields{grid-template-columns:repeat(4,minmax(0,1fr))}.parameter-title{display:block}.parameter-title>span{display:block;margin-top:8px}.parameter-actions{display:flex;flex-wrap:wrap}.include-unknown{width:auto;max-width:48%;margin-right:12px}.parameter-actions .button{flex:none}.parameter-footnote{margin-top:12px}
 .directory .supplier-row{grid-template-columns:140px minmax(0,1fr) 24px 145px;grid-gap:14px;min-height:116px;padding:20px 8px}.supplier-row .supplier-name{grid-column:2;grid-row:1}.supplier-row .save{grid-column:3;grid-row:1}.supplier-row>.button{grid-column:4;grid-row:1}.supplier-row .supplier-status{display:block;grid-column:2/5;grid-row:2;padding:0;border:0}.supplier-grid-head{display:none}.supplier-row .supplier-category{display:none}.supplier-row .evidence-link{display:block}.supplier-row .evidence-link>*{margin-right:8px}.bottom-grid{display:block}.unified-footer{grid-template-columns:1fr 1fr;grid-gap:32px}
 .catalog-layout{grid-template-columns:170px minmax(0,1fr);grid-gap:24px}.drive-result{grid-template-columns:105px minmax(0,1fr);grid-gap:20px}.drive-result-actions{grid-column:2;flex-direction:row;flex-wrap:wrap}.drive-result-actions>*{margin:6px 12px 0 0}.dossier-layout{display:block}.dossier-aside{display:grid;grid-template-columns:1fr 1fr;grid-gap:24px;margin:28px 0}.technical-cover{grid-template-columns:32% minmax(0,1fr)}.technical-stage{padding:20px}.technical-stage img{height:220px}.technical-intro{padding:28px}.technical-intro h2{font-size:30px}.reading-layout{grid-template-columns:180px minmax(0,1fr);grid-gap:30px}.reading-body{min-width:0}.auth-layout{max-width:680px;display:block;margin:16px auto 30px;min-height:0}.auth-editorial{display:none}.auth-panel{padding:40px}.auth-panel-inner{max-width:500px}
}
@media(max-width:700px){
 .site-shell-top{min-height:72px;padding:14px 20px}.unified-brand{font-size:21px;letter-spacing:-.6px}.unified-brand small{font-size:14px}.unified-symbol{width:65px;height:28px;margin-right:6px}.unified-symbol img{width:84px!important;left:-9px;top:-25px}.site-shell-context,.site-shell-utility{display:none}.site-menu-toggle{display:flex;min-height:44px;padding:8px 10px;margin-left:auto;font-size:14px}.site-menu-toggle .icon{margin-left:10px}.site-shell-navigation{display:none}.site-shell-header.is-open .site-shell-navigation{display:block;padding:8px 20px 22px}.site-shell-navigation>nav{display:block}.site-shell-navigation>nav>a{display:flex;margin:0;min-height:48px;border-bottom:1px solid #35516b;padding:10px 0;font-size:16px;white-space:normal}.site-shell-tools{display:flex;flex-wrap:wrap;padding:14px 0 0}.site-shell-tools>a{margin:6px 20px 6px 0;min-height:44px;font-size:14px}.mobile-utility{display:flex;flex-wrap:wrap}.mobile-utility>a{min-height:44px;display:inline-flex;align-items:center}
 .hero{display:block;padding:30px 20px 40px}.hero h1{font-size:36px;line-height:1.12;letter-spacing:-1.2px;overflow-wrap:break-word}.hero p{font-size:17px;line-height:1.6}.hero .search{height:auto;min-height:50px}.hero .search input{padding:12px 6px;font-size:16px}.hero .search>svg{width:19px;height:19px;margin-left:12px;margin-right:6px}.hero .search button{min-width:75px;padding:0 12px;font-size:14px}.hero-evidence{padding:22px 0 0;margin:24px 0 0;border-left:0;border-top:1px solid #36516a}.hero-evidence a{min-height:44px}.hero-evidence p{margin-bottom:0}
 .parameter-panel{margin:-12px 12px 26px;padding:22px 16px 18px}.parameter-title{display:block}.parameter-title h2{font-size:25px;line-height:1.25}.parameter-title>span{display:block;margin-top:9px;font-size:14px}.spec-columns{display:block}.parameter-panel fieldset,.parameter-panel fieldset:last-child{margin:0 0 22px;padding:0 0 22px;border:0;border-bottom:1px solid #d8e3ec}.parameter-panel legend{font-size:21px;margin-bottom:16px}.parameter-fields,.extra-filters .parameter-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:16px 12px}.parameter-fields label{font-size:14px;line-height:1.5}.protocol-options{display:flex;flex-wrap:wrap}.protocol-options label{min-height:38px;font-size:14px;margin-right:14px}.parameter-actions{display:flex;flex-wrap:wrap}.parameter-actions .include-unknown{width:100%;max-width:none;order:1;margin:0 0 16px}.parameter-actions .clear-filters{order:2;margin-right:10px;min-height:46px;display:inline-flex;align-items:center}.parameter-actions .button{order:3;min-height:46px;flex:1;margin-left:0;padding:10px;font-size:14px}.parameter-actions .button .icon{margin-right:8px}.parameter-footnote{margin-top:15px}
 .browse-layout,.bottom-grid{margin-left:20px;margin-right:20px}.directory .section-heading{display:block}.section-heading h2{font-size:27px;line-height:1.3}.tabs{display:flex;flex-wrap:wrap;margin:10px 0}.tabs>a{margin:0 8px 8px 0;font-size:14px}.results-note{display:block;font-size:14px}.results-note>span{display:block;max-width:none!important;margin-bottom:6px}.directory .supplier-row{display:grid;grid-template-columns:110px minmax(0,1fr);grid-gap:14px;padding:22px 0}.supplier-row .factory-logo{width:110px!important}.supplier-row .supplier-name{grid-column:2;grid-row:1;font-size:16px}.supplier-row .supplier-category{display:none}.supplier-row .supplier-status{display:block;grid-column:1/-1;grid-row:2;padding:0;border:0}.supplier-row .evidence-link{display:block}.evidence-link strong,.evidence-link small{display:block;margin:4px 0}.supplier-row .save{grid-column:1;grid-row:3;min-height:44px;display:flex;align-items:center}.supplier-row .save:after{content:'Save';font-size:14px;margin-left:8px}.supplier-row>.button{grid-column:2;grid-row:3;min-height:44px;justify-self:end}.supplier-grid-head{display:none}.pagination{flex-wrap:wrap}.pagination>div{display:flex;flex-wrap:wrap}.pagination a{margin:4px}
 .interior .page{padding:24px 20px 36px}.interior .page-heading h1{font-size:32px;line-height:1.2;word-wrap:break-word}.catalog-layout,.dossier-layout,.reading-layout,.information-layout,.technical-cover{display:block}.catalog-sidebar,.article-outline,.information-navigation{position:static;margin-bottom:24px}.catalog-sidebar form{display:flex;flex-wrap:wrap}.catalog-sidebar form>*{margin-right:12px;max-width:100%}.drive-result{display:grid;grid-template-columns:90px minmax(0,1fr);grid-gap:16px}.drive-result-image{min-height:120px}.drive-result-actions{grid-column:1/-1;display:flex;flex-direction:row;flex-wrap:wrap;align-items:center}.drive-result-actions>*{margin:5px 14px 5px 0}.technical-stage{padding:22px}.technical-stage img{height:220px}.technical-intro{padding:24px 18px}.technical-intro h2{font-size:28px}.technical-keyfacts{grid-gap:16px}.specification-table>div{grid-template-columns:43% minmax(0,1fr);grid-gap:12px;padding:13px 10px}.dossier-aside{margin-top:24px}.article-outline{display:none}.reading-body{max-width:100%;font-size:17px}.reading-body h2{font-size:25px}.article-cover{width:100%;height:auto}.information-navigation{display:none}.editorial-cta{display:block;padding:24px}.editorial-cta .button{margin-top:18px}.manufacturer-directory-row{grid-template-columns:100px minmax(0,1fr);grid-gap:18px}.manufacturer-directory-row .directory-evidence{grid-column:1/-1}.manufacturer-directory-row .directory-actions{grid-column:1/-1}
 .share,.interior .share{margin:28px 20px;padding:18px 0;display:flex;flex-wrap:wrap}.share>strong{width:100%;margin-bottom:8px}.share>a,.share>button{margin:4px 15px 4px 0;font-size:14px}.unified-footer{padding:32px 20px 22px;grid-template-columns:1fr 1fr;grid-gap:28px 20px}.footer-intro{grid-column:1/-1}.footer-bottom{display:flex;flex-wrap:wrap}.footer-bottom>*{margin-bottom:10px}.consent{left:10px;right:10px;bottom:10px;padding:12px;font-size:13px;line-height:1.5}.consent>button{min-height:40px}.auth-top{padding:20px}.auth-layout{display:block;border:0;border-radius:0;box-shadow:none;margin:0;min-height:0}.auth-editorial{display:none}.auth-panel{padding:28px 20px}.auth-panel-inner{max-width:480px}.auth-footer{padding:20px;margin:0}.auth-footer nav>a{display:inline-block;margin:6px 12px 6px 0}
}
@media(max-width:359px){.site-shell-top{padding-left:12px;padding-right:12px}.unified-brand{font-size:18px}.unified-brand small{font-size:12px}.unified-symbol{width:54px;margin-right:4px}.unified-symbol img{width:72px!important;left:-8px;top:-21px}.hero h1{font-size:31px}.hero,.interior .page{padding-left:16px;padding-right:16px}.parameter-fields,.extra-filters .parameter-fields{grid-template-columns:1fr}.parameter-actions .button{flex-basis:100%;margin-top:10px}.parameter-actions .clear-filters{width:100%;justify-content:center}.auth-mode{display:block}.auth-mode>a{display:block;margin-top:8px}}
/* No CSS Grid: preserve the same content and controls in a linear reading order. */
.no-grid .spec-columns,.no-grid .parameter-fields,.no-grid .catalog-layout,.no-grid .dossier-layout,.no-grid .reading-layout,.no-grid .technical-cover,.no-grid .information-layout,.no-grid .auth-layout,.no-grid .auth-form,.no-grid .form,.no-grid .grid2,.no-grid .stats,.no-grid .unified-footer,.no-grid .hero{display:block}
.no-grid .parameter-panel fieldset{border:0;border-bottom:1px solid #d8e3ec;margin-bottom:22px;padding:0 0 22px}.no-grid .parameter-fields>label{display:inline-block;vertical-align:top;width:47%;margin:0 2% 16px 0}.no-grid .parameter-fields label input,.no-grid .parameter-fields label select{display:block}.no-grid .supplier-row,.no-grid .manufacturer-directory-row,.no-grid .drive-result,.no-grid .technical-keyfacts,.no-grid .specification-table>div{display:block!important}.no-grid .supplier-row>*{margin-bottom:12px}.no-grid .supplier-status{padding:0;border:0}.no-grid .drive-result-image{display:block;width:160px}.no-grid .unified-footer>div{display:inline-block;vertical-align:top;width:46%;margin:0 3% 24px 0}.no-grid .unified-footer .footer-bottom{width:100%;display:block}.no-grid .auth-form>*{margin-bottom:12px}.no-grid .form>*{margin-bottom:16px}.no-grid .hero-evidence{border-left:0;margin-top:24px;padding-left:0}.no-grid .specification-table dd{margin-top:6px}.no-grid .catalog-sidebar,.no-grid .article-outline{position:static}.no-grid .supplier-grid-head{display:none}
.no-vars body{background:#fff;color:#102c49}.no-vars .panel,.no-vars .auth-panel{background:#fff;color:#102c49;border-color:#d8e3ec}.no-vars .button{background:#0077ee;color:#fff}.no-vars .auth-editorial{background:#072643;color:white}.no-vars input,.no-vars select,.no-vars textarea{color:#102c49}.no-vars .page-heading p{color:#536c82}
@media(max-width:359px){.no-grid .parameter-fields>label{width:100%;margin-right:0}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media(min-width:701px) and (max-width:1100px){.site-shell-navigation,.site-shell-header.is-open .site-shell-navigation{gap:0}.parameter-panel fieldset:last-child .parameter-fields{margin-top:0}.parameter-panel fieldset:last-child legend{margin-bottom:16px}}
@media(max-width:700px){.bottom-grid .section-heading{display:block}.bottom-grid .section-heading h2{white-space:normal;font-size:25px;line-height:1.3}.bottom-grid .section-heading>span{display:block;margin:8px 0 0}.parameter-panel .include-unknown{display:flex;align-items:flex-start}.include-unknown input{margin-right:8px;margin-top:3px}.site-shell-top .unified-brand{flex-shrink:1}}
@media(max-width:700px){.supplier-row .supplier-name{display:flex!important;min-width:0}.supplier-row .supplier-name span{display:block}.no-grid .supplier-row .supplier-name{display:block!important}}

/* Pointer clicks stay clean; keyboard navigation retains the visible focus ring. */
a:focus:not(:focus-visible),button:focus:not(:focus-visible),summary:focus:not(:focus-visible){outline:none}
.pointer-focus a:focus,.pointer-focus button:focus,.pointer-focus summary:focus{outline:none}

/* Keep the Google brand visible at every screen size, including flex-gap-free browsers. */
a.auth-google{gap:0;font-size:16px;font-weight:600;min-height:52px}
a.auth-google svg.google-brand-icon{display:block;width:24px;height:24px;min-width:24px;max-width:24px;flex:0 0 24px;margin:0 12px 0 0;stroke:none;opacity:1;visibility:visible}