.resource-page{max-width:1240px;margin:auto;padding:70px 40px 90px}.resource-intro{padding:10px 0 50px;border-bottom:1px solid #d6dada}.resource-intro h1{max-width:850px;margin:18px 0 22px}.resource-intro p{max-width:680px;color:#636769;font-size:18px}.resource-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:42px 0}.resource-cards>a{padding:34px;background:#f4f5f5;border:1px solid #d6dada;color:#30383b;text-decoration:none;transition:border-color .2s}.resource-cards>a:hover{border-color:#f47920}.resource-symbol{font-size:20px;color:#9b470d;font-weight:700}.resource-cards h2{font-size:29px;margin:26px 0 15px}.resource-cards p{font-size:16px;color:#636769;max-width:430px}.resource-cards strong{display:block;margin-top:28px;font-size:14px;color:#954610}.resource-help{padding:35px 0;border-top:1px solid #d6dada}.resource-help h2{font-size:30px}.resource-help p{color:#636769}.resource-help>a{display:inline-block;margin-top:12px;text-decoration:none}.resource-nav{position:relative;display:flex;align-items:center;gap:3px}.resource-menu{position:absolute;top:calc(100% + 15px);left:0;min-width:235px;padding:14px;background:#202729;border:1px solid #50595b;border-top:3px solid #f47920;z-index:90}.resource-menu a{display:block;padding:15px!important;color:#f0f2f2!important;white-space:nowrap;text-decoration:none}.resource-menu a:hover{background:#ffffff10}.eloi-premium .nav .resource-nav>a[aria-current]{color:#ffad6d!important;border-bottom:3px solid #f47920;padding:8px 8px 6px;font-weight:700}.viscosity-guide{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px;padding:55px 0;border-bottom:1px solid #d6dada}.viscosity-guide h2{font-size:34px}.viscosity-guide p,.academy-page .article-block p{font-size:16px;color:#555f63;line-height:1.75}.viscosity-controls{display:grid;grid-template-columns:1fr 1fr;gap:20px}.viscosity-controls label{font-size:14px;display:grid;gap:10px}.viscosity-controls select{width:100%;padding:12px;border:1px solid #9fa8ab;border-radius:2px;background:#fff;font-size:17px}.viscosity-result{background:#f3f5f5;border-left:3px solid #f47920;padding:26px;margin-top:24px}.viscosity-result>strong{font-size:27px}.academy-page .academy-note{font-size:14px}.academy-page .article-block{padding:36px 0;border-bottom:1px solid #d6dada;max-width:900px}.academy-page .article-block h2{font-size:30px}.academy-page .article-block a{color:#97480e}
@media(max-width:1099px){.resource-nav{flex-wrap:wrap}.resource-menu{position:static;width:100%;margin-top:10px}}
@media(max-width:700px){.resource-page{padding:40px 24px 55px}.resource-cards,.viscosity-guide{grid-template-columns:1fr;gap:22px}.resource-cards>a{padding:26px}.resource-intro{padding-bottom:30px}.resource-intro p{font-size:16px}.viscosity-guide{padding:35px 0}}
/* Shared nav typography and toggle geometry. */
.eloi-premium .nav .resource-nav>a{font-size:14px}.resource-nav{gap:3px}
.eloi-premium .nd-quality{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:56px;align-items:center}.about-quality-photo{margin:0;align-self:stretch;display:flex;flex-direction:column;background:#202729;min-height:440px}.about-quality-photo img{width:100%;height:440px;object-fit:cover;flex:1;min-height:0}.about-quality-photo figcaption{padding:20px 24px;font-size:14px;color:#d2d7d8;line-height:1.6}.quality-evidence{margin-top:28px;border-top:1px solid #ccd2d4}.quality-evidence a{display:block;padding:19px 0;border-bottom:1px solid #ccd2d4;text-decoration:none;color:#30383b}.quality-evidence strong{display:block;font-size:17px;margin-bottom:6px}.quality-evidence span{color:#636769;font-size:14px;line-height:1.6}.quality-evidence a:hover strong{color:#a3490d}
[data-grade]{--grade-colour:#636769}[data-grade="5W-30"]{--grade-colour:#f47920}[data-grade="0W-30"]{--grade-colour:#76ce22}[data-grade="5W-40"]{--grade-colour:#2374d5}[data-grade="10W-40"]{--grade-colour:#db343d}.viscosity-result{border-left:6px solid var(--grade-colour);position:relative}.viscosity-result>strong{display:block;padding-bottom:16px;border-bottom:4px solid var(--grade-colour);color:#30383b}.grade-colours{padding:45px 0;border-bottom:1px solid #d6dada}.grade-colours h2,.grade-reading>h2{font-size:34px;margin:15px 0}.grade-colours>p{color:#636769;max-width:760px;font-size:16px}.grade-swatches{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:28px 0}.grade-swatches button{background:#f4f5f5;border:1px solid #d0d5d6;border-top:8px solid var(--grade-colour);padding:24px 20px;text-align:left;color:#30383b;cursor:pointer;transition:box-shadow .2s}.grade-swatches strong{display:block;font-size:28px}.grade-swatches span{display:block;margin-top:8px;font-size:14px;color:#555f63}.grade-swatches button[aria-pressed=true]{box-shadow:inset 0 0 0 2px var(--grade-colour)}.grade-swatches button:hover{background:#fff}.grade-reading{padding:40px 0;border-bottom:1px solid #d6dada}.grade-reading>div{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;margin:28px 0}.grade-reading article{padding:24px;background:#f4f5f5;border-top:2px solid #636769}.grade-reading h3{font-size:21px;line-height:1.3;margin:0 0 15px}.grade-reading p{font-size:16px;color:#555f63;line-height:1.75}.grade-reading details{padding:20px 0;border-top:1px solid #d6dada}.grade-reading summary{font-size:17px;font-weight:600;cursor:pointer}
@media(max-width:850px){.eloi-premium .nd-quality{grid-template-columns:1fr;gap:30px}.about-quality-photo{min-height:0}.about-quality-photo img{height:320px;flex:none}.grade-reading>div{grid-template-columns:1fr}.grade-swatches{grid-template-columns:1fr 1fr}.grade-swatches strong{font-size:25px}}

/* One shared toggle rule for both primary navigation groups. */
.eloi-premium .nav .eloi-products-nav>.eloi-products-toggle{display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box;width:30px;height:40px;min-width:30px;min-height:40px;flex:0 0 30px;margin:0;padding:0;border:0;border-radius:0;background:transparent;color:#fff;font:400 19px/1 Arial,Helvetica,sans-serif;box-shadow:none;cursor:pointer;appearance:none}.eloi-premium .nav .eloi-products-nav>.eloi-products-toggle>span{display:block;font:inherit;line-height:1;transform:none}.eloi-premium .nav .eloi-products-nav>.eloi-products-toggle:hover,.eloi-premium .nav .eloi-products-nav>.eloi-products-toggle[aria-expanded=true]{color:#ff7900;background:transparent}.eloi-premium .nav .eloi-products-nav>.eloi-products-toggle:focus-visible{outline:2px solid #ffad6d;outline-offset:2px}
/* Resource dropdown shares the Products mega-menu surface and spacing. */
.eloi-premium .nav .eloi-resource-mega{background:#fff;color:#30383b}.eloi-resource-mega .eloi-mega-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.eloi-resource-mega .eloi-mega-grid p{font-size:15px;line-height:1.65;color:#636769;margin:0 0 12px;max-width:320px}.eloi-premium .nav .eloi-resource-mega .eloi-mega-grid section>a:first-child{background:#fff1e5;color:#a6480a!important;padding:12px 14px}.eloi-premium .nav .eloi-resource-mega .eloi-mega-top>a{background:#fff1e5;padding:12px 14px}
/* Brand meaning: original letter artwork, white on the ELOI grey. */
.eloi-premium .brand-story{background:#636769;padding:52px 42px;border:0;color:#fff;border-radius:3px}.eloi-premium .brand-story>h2,.eloi-premium .brand-story>.eyebrow{color:#fff}.eloi-premium .brand-story>.content-lead{color:#fff;max-width:880px}.eloi-premium .brand-story .brand-values{gap:24px}.eloi-premium .brand-story .brand-values article{background:transparent;border:0;min-width:0}.eloi-premium .nd-about .brand-story .brand-values .brand-letter{filter:brightness(0) invert(1)!important;object-fit:contain}.eloi-premium .brand-story .brand-values h3{color:#ff7900;font-size:28px;background:#30383b;padding:20px 20px 0;margin:16px 0 0}.eloi-premium .brand-story .brand-values p{color:#ff7900;background:#30383b;padding:14px 20px 22px;margin:0;font-size:16px;line-height:1.7;min-height:135px}.eloi-premium .brand-story>.btn{margin-top:28px}
@media(max-width:1099px){.eloi-premium .nav .eloi-resource-mega{position:static;padding:24px;box-shadow:none}.eloi-resource-mega .eloi-mega-top{flex-wrap:wrap}}
@media(max-width:700px){.eloi-resource-mega .eloi-mega-grid{grid-template-columns:1fr;gap:24px}.eloi-premium .brand-story{padding:32px 20px}.eloi-premium .brand-story .brand-values{grid-template-columns:1fr 1fr;gap:24px 14px}.eloi-premium .brand-story .brand-values h3{font-size:22px;padding:16px 12px 0}.eloi-premium .brand-story .brand-values p{padding:12px 12px 18px;font-size:15px;min-height:0}.eloi-premium .nav .nav-links.open{overscroll-behavior:contain}.eloi-premium .nav .eloi-mega-top{gap:18px;align-items:flex-start;flex-direction:column}.eloi-premium input,.eloi-premium select,.eloi-premium textarea{font-size:16px}.eloi-premium .resource-page,.eloi-premium .nd-main{min-width:0}.eloi-premium .nd-actions a{white-space:normal}.eloi-premium .viscosity-controls{gap:12px}.eloi-premium .hero-brandline{max-width:100%}.eloi-premium .application-tile h3{overflow-wrap:anywhere}.eloi-premium .nd-detail-grid>*,.eloi-premium .nd-specs dd{min-width:0;overflow-wrap:anywhere}}
@media(max-width:400px){.eloi-premium .brand-story .brand-values{grid-template-columns:1fr}.eloi-premium .hero-wordmark{width:148px}.eloi-premium .grade-swatches{gap:10px}.eloi-premium .grade-swatches button{padding:18px 12px}}