:root{--page-background:#ffffff;--surface:#ffffff;--soft:#f6f8fa;--navy:#102b4e;--ink:#17283c;--muted:#738294;--line:#e1e8ed;--cyan:#45aeb2;--link-color:#317c87;--header-background:#ffffff;--topline-background:#f4f7f9;--topline-text:#6a7685;--nav-text:#40536a;--input-background:#ffffff;--input-text:#33465a;--placeholder-color:#68717b;--input-border:#bac6d0;--purple:#583a9b;--search-text:#ffffff;--logo-icon:#79d4ce;--hero-start:#0e294a;--hero-middle:#123456;--hero-end:#1b4d68;--hero-title:#ffffff;--hero-text:#c5d3df;--hero-accent:#8cdbd3;--illustration-accent:#65c6c2;--hero-outline-background:#23455f;--hero-outline-text:#ffffff;--hero-outline-border:#7791a7;--primary-background:#59bcb8;--primary-text:#0b2b46;--primary-hover:#79d4cc;--secondary-background:#ffffff;--secondary-text:#102b4e;--secondary-border:#d1dce4;--quick-add-background:#102b4e;--quick-add-text:#ffffff;--whatsapp-background:#299f64;--whatsapp-text:#ffffff;--email-background:#ffffff;--email-text:#375b70;--filter-background:#ffffff;--product-image-start:#f8fbfc;--product-image-end:#eff5f6;--product-image-circle:#e8f2f1;--product-title:#263c53;--product-badge-background:#ffffff;--product-badge-text:#48637c;--quote-button-background:#f2faf9;--quote-button-text:#276e76;--quote-button-border:#a9d7d4;--info-background:#f0f7f6;--info-text:#667e83;--toast-background:#102b4e;--toast-text:#ffffff;--category-0-background:#eaf6f3;--category-0-text:#287b83;--category-1-background:#eef2f8;--category-1-text:#36547d;--category-2-background:#f0f4f6;--category-2-text:#5b8091;--category-3-background:#f0edf9;--category-3-text:#7560a9;--category-4-background:#f4f4ef;--category-4-text:#788358;--faq-answer:#607286;--faq-icon-background:#eaf6f3;--faq-icon-text:#287e87;--brand-sigma:#4d9697;--brand-merck:#2186a0;--brand-supelco:#517bb3;--brand-millipore:#569a47;--about-background:#102b4e;--about-title:#ffffff;--about-text:#bdccda;--about-icon:#78d1c9;--footer-background:#f3f6f8;--footer-heading:#344a60;--footer-text:#7b8996;--white:var(--surface);}
/* Theme color layer. Layout remains in the component stylesheets. */
body,body.catalog-page,body.articles-page{background:var(--page-background)!important;color:var(--ink)}
.topline{background:var(--topline-background)!important;color:var(--topline-text)!important}
.site-header{background:var(--header-background)!important;border-color:var(--line)!important}
.nav,.nav-parent-link,.nav>a,.article-header nav{color:var(--nav-text)!important}
.nav a:hover,.nav-parent-link:hover,.article-header nav a:hover,.article-header nav a[aria-current=page]{color:var(--link-color)!important}
.nav>a:hover:after{background:var(--cyan)!important}
.brand,.brand-name,.section-head h2,.catalog-page .catalog-section .section-head h2,.catalog-category-heading h3,.category-text b,.filter-heading,.filter-group>b,.detail-content h2,.drawer-head h2,.seo-guide h2,.articles-intro h1,.public-article h1,.public-article h2,.public-article h3,.public-article h4,.public-article-card h2,.article-empty-state b{color:var(--navy)!important}
.brand-mark,.quote-trigger b{background:var(--navy)!important}
.brand-mark svg{stroke:var(--logo-icon)!important}
.articles-footer .brand-mark{color:var(--logo-icon)!important}
.quote-trigger{background:var(--header-background)!important;color:var(--navy)!important;border-color:var(--line)!important}
.quote-trigger b{color:var(--quick-add-text)!important}
.menu-toggle{color:var(--navy)!important}
.searchbar,.searchbar input,.filter-search input,.catalog-sort-label select,.sigma-cas-form input,.sigma-cas-form,.quote-send textarea,.qty-control input,.articles-list-tools input{background:var(--input-background)!important;color:var(--input-text)!important;border-color:var(--input-border)!important}
.searchbar,.search-select{border-color:var(--input-border)!important}
input::placeholder,textarea::placeholder{color:var(--placeholder-color)!important;opacity:1}
.search-select span{color:var(--link-color)!important}
.search-submit{background:var(--purple)!important;color:var(--search-text)!important}
.search-submit:hover{background:color-mix(in srgb,var(--purple) 87%,black)!important}
.nav-dropdown{background:var(--header-background)!important;border-color:var(--line)!important}
.nav-dropdown a,.nav-dropdown-heading{color:var(--nav-text)!important}
.nav-dropdown a:hover,.nav-dropdown-heading>a{color:var(--link-color)!important}
.nav-category-symbol{color:var(--cyan)!important;background:var(--info-background)!important}
.nav-dropdown-heading{border-color:var(--line)!important}
.nav-category-description,.nav-category-link small{color:var(--muted)!important}
.hero{background:linear-gradient(105deg,var(--hero-start),var(--hero-middle) 53%,var(--hero-end))!important;color:var(--hero-title)!important}
.hero h1,.hero .visual-caption b{color:var(--hero-title)!important}
.hero-copy>p,.hero .visual-caption small{color:var(--hero-text)!important}
.hero .eyebrow,.hero h1 em{color:var(--hero-accent)!important}
.hero .eyebrow i{background:var(--hero-accent)!important}
.hero-visual{background:radial-gradient(ellipse at 50% 55%,color-mix(in srgb,var(--illustration-accent) 23%,transparent),transparent 65%)}
.molecule svg{stroke:var(--illustration-accent)}
.molecule i{background:var(--illustration-accent);box-shadow:0 0 15px color-mix(in srgb,var(--illustration-accent) 65%,transparent)}
.molecule i:nth-of-type(2){background:color-mix(in srgb,var(--illustration-accent) 45%,white)}
.molecule i:nth-of-type(4){background:color-mix(in srgb,var(--illustration-accent) 25%,white)}
.liquid{background:linear-gradient(90deg,color-mix(in srgb,var(--illustration-accent) 45%,transparent),color-mix(in srgb,var(--illustration-accent) 35%,transparent))}
.caption-icon{color:var(--hero-accent);background:color-mix(in srgb,var(--illustration-accent) 25%,transparent)}
.visual-label{color:color-mix(in srgb,var(--hero-text) 75%,transparent)}
.orb-one{border-color:color-mix(in srgb,var(--illustration-accent) 35%,transparent);box-shadow:0 0 0 23px color-mix(in srgb,var(--illustration-accent) 4%,transparent),0 0 0 48px color-mix(in srgb,var(--illustration-accent) 3%,transparent)}
.orb-two{background:radial-gradient(circle at 35% 30%,color-mix(in srgb,var(--illustration-accent) 28%,transparent),color-mix(in srgb,var(--illustration-accent) 7%,transparent) 60%,transparent)}
.button-primary{background:var(--primary-background)!important;color:var(--primary-text)!important;border-color:transparent!important}
.button-primary:hover{background:var(--primary-hover)!important}
.button-outline,.button-light,.category-more,.catalog-load-more,.public-article-share a{background:var(--secondary-background)!important;color:var(--secondary-text)!important;border-color:var(--secondary-border)!important}
.button-outline:hover,.button-light:hover,.category-more:hover,.catalog-load-more:hover{background:color-mix(in srgb,var(--secondary-background) 90%,var(--cyan))!important}
.hero .button-outline{background:var(--hero-outline-background)!important;color:var(--hero-outline-text)!important;border-color:var(--hero-outline-border)!important}
.quick-add,.public-article-share button{background:var(--quick-add-background)!important;color:var(--quick-add-text)!important}
.eyebrow,.product-category,.catalog-category-heading .eyebrow{color:var(--cyan)!important}
.hero .eyebrow{color:var(--hero-accent)!important}
.text-link,.back-to-articles,.public-article-body a,.public-article-card-copy>b,.quote-item-info small a,.filter-heading button,.category-empty a,.pubchem-source{color:var(--link-color)!important}
.section-subtitle,.result-count,.category-text small,.catalog-category-count,.catalog-sort-label,.product-meta,.price-contact,.empty-state,.detail-description,.detail-brand,.detail-note,.drawer-intro,.quote-empty p,.quote-quantity-label,.qty-control .remove-item,.quote-send>p,.quote-send label,.seo-breadcrumbs,.seo-guide p,.articles-intro>p,.public-article-card p,.public-article-meta,.articles-list-tools,.public-article-excerpt{color:var(--muted)!important}
.category-arrow,.nav-item-arrow{color:var(--muted)!important}
.catalog-section{background:var(--soft)!important}
.product-card,.category-card,.catalog-category-group,.brand-tile,.faq-item,.public-article-card,.public-article,.article-empty-state,.quote-drawer,.detail-modal,.quote-item,.suggestions,.suggestions button{background:var(--surface)!important;border-color:var(--line)!important}
.filters{background:var(--filter-background)!important;border-color:var(--line)!important}
.filter-heading,.filter-group,.filter-brand-group,.product-meta>div,.product-bottom,.detail-fields,.detail-fields>div,.quote-item,.drawer-head,.quote-send,.public-article-share{border-color:var(--line)!important}
.check-row,.filter-search,.detail-fields span,.detail-fields b,.product-meta span,.product-meta b{color:var(--muted)!important}
.check-row input{border-color:var(--input-border)!important}
.check-row input:checked{border-color:var(--cyan)!important}
.check-row input:checked:after{background:var(--cyan)!important}
.filter-subcategory-toggle,.filter-brand-group>b,.active-filters button{color:var(--link-color)!important}
.active-filters button{background:var(--info-background)!important;border-color:var(--line)!important}
.filter-note,.catalog-page .filter-note,.pubchem-status,.suggestion-pubchem-status,.suggestion-icon,.sigma-search-link,.category-empty,.detail-art,.public-article-excerpt,.public-article-body blockquote,.public-article-tags span{background:var(--info-background)!important;color:var(--info-text)!important;border-color:var(--line)!important}
.filter-note p,.pubchem-status,.sigma-search-link small,.sigma-cas-form>small,.category-empty p{color:var(--info-text)!important}
.product-visual,.catalog-page .product-visual{background:linear-gradient(145deg,var(--product-image-start),var(--product-image-end))!important}
.product-visual:after,.catalog-page .product-visual:after{background:var(--product-image-circle)!important}
.product-brand,.catalog-page .product-brand{background:var(--product-badge-background)!important;color:var(--product-badge-text)!important;border-color:var(--line)!important}
.product-title,.catalog-page .product-title{color:var(--product-title)!important}
.product-title:hover,.catalog-page .product-title:hover{color:var(--link-color)!important}
.add-quote,.catalog-page .add-quote{background:var(--quote-button-background)!important;color:var(--quote-button-text)!important;border-color:var(--quote-button-border)!important}
.add-quote:hover,.catalog-page .add-quote:hover{background:color-mix(in srgb,var(--quote-button-background) 85%,var(--cyan))!important}
.category-icon,.cat-0 .category-icon{background:var(--category-0-background)!important;color:var(--category-0-text)!important}
.cat-1 .category-icon{background:var(--category-1-background)!important;color:var(--category-1-text)!important}
.cat-2 .category-icon{background:var(--category-2-background)!important;color:var(--category-2-text)!important}
.cat-3 .category-icon{background:var(--category-3-background)!important;color:var(--category-3-text)!important}
.cat-4 .category-icon{background:var(--category-4-background)!important;color:var(--category-4-text)!important}
.brand-symbol,.sigma .brand-symbol,.nav-brand-link.sigma .nav-brand-symbol{color:var(--brand-sigma)!important}
.merck .brand-symbol,.nav-brand-link.merck .nav-brand-symbol{color:var(--brand-merck)!important}
.supelco .brand-symbol,.nav-brand-link.supelco .nav-brand-symbol{color:var(--brand-supelco)!important}
.millipore .brand-symbol,.nav-brand-link.millipore .nav-brand-symbol{color:var(--brand-millipore)!important}
.brand-tile b{color:var(--navy)!important}.brand-tile small{color:var(--muted)!important}
.nav-brand-symbol{background:var(--info-background)!important}
.faq-item summary{color:var(--navy)!important}
.faq-item summary>span:first-child{color:inherit!important;background:transparent!important}
.faq-item summary>span[aria-hidden=true]{background:var(--faq-icon-background)!important;color:var(--faq-icon-text)!important}
.faq-answer,.faq-answer p,.faq-answer bdi{color:var(--faq-answer)!important}
.about-band{background:var(--about-background)!important;color:var(--about-title)!important}
.about-band h2{color:var(--about-title)!important}.about-band .eyebrow{color:var(--cyan)!important}
.about-band p{color:var(--about-text)!important}
footer,.articles-footer{background:var(--footer-background)!important;border-color:var(--line)!important}
.footer-main h3{color:var(--footer-heading)!important}
.footer-brand>p,.footer-main>div:not(.footer-brand)>a:not(.contact-action),.footer-main .contact-line,.footer-bottom,.articles-footer>.container{color:var(--footer-text)!important}
.footer-bottom{border-color:var(--line)!important}
.footer-main>div>a:hover,.footer-main .contact-action{color:var(--link-color)!important}
.public-article-body{color:var(--ink)!important}
.public-article-excerpt,.public-article-body blockquote{border-inline-start-color:var(--cyan)!important;border-right-color:var(--cyan)!important}
.public-article-meta span{color:var(--cyan)!important}
.article-card-placeholder{background:linear-gradient(145deg,var(--info-background),var(--soft))!important;color:var(--cyan)!important}
.suggestions button:hover{background:var(--info-background)!important;color:var(--input-text)!important}
.suggestions b,.sigma-cas-form label{color:var(--input-text)!important}.suggestions small,.suggestion-empty{color:var(--muted)!important}
.sigma-cas-form button{background:var(--quick-add-background)!important;color:var(--quick-add-text)!important}
.quote-empty b,.quote-item-info b{color:var(--navy)!important}
.detail-close,#quote-close{background:var(--surface)!important;color:var(--navy)!important;border-color:var(--line)!important}
.contact-action{border-color:var(--line)!important}

.button-whatsapp{background:var(--whatsapp-background)!important;color:var(--whatsapp-text)!important}
.button-whatsapp:hover{background:color-mix(in srgb,var(--whatsapp-background) 88%,black)!important}
.button-email{background:var(--email-background)!important;color:var(--email-text)!important;border-color:var(--secondary-border)!important}
.toast{background:var(--toast-background)!important;color:var(--toast-text)!important}
.about-icon svg{stroke:var(--about-icon)!important}
.quote-item-art{background:var(--info-background)!important}
.product-illustration .art-halo{fill:var(--product-image-circle)!important}
.product-illustration .art-lines{stroke:var(--illustration-accent)!important}
.product-illustration .art-dot{fill:var(--illustration-accent)!important}
.product-illustration stop:first-child{stop-color:color-mix(in srgb,var(--illustration-accent) 20%,white)}
.product-illustration stop:last-child{stop-color:var(--illustration-accent)}