@charset "UTF-8";
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@media(max-width:700px){.wrap{width:calc(100% - 40px)}.preview-bar{font-size:8px;letter-spacing:.065em}.header-inner{min-height:82px}.brand{font-size:14px;gap:10px}.brand small{font-size:6.5px}.brand-mark{width:40px;height:42px}.menu-toggle{padding:10px;font-size:11px;gap:10px}.hero{display:flex;flex-direction:column;padding-top:43px;padding-bottom:35px;gap:28px}.hero h1{font-size:60px}.hero .eyebrow{font-size:8px;letter-spacing:.09em;margin-bottom:25px}.hero-intro{font-size:15px;margin-top:22px}.hero-intro br{display:none}.actions{margin-top:26px;flex-direction:row;flex-wrap:wrap;align-items:center;gap:18px}.actions .button{font-size:12px;gap:14px;padding:14px 16px}.hero .text-link{font-size:11px;gap:10px}.hero-foot{margin-top:16px}.hero-photo{margin:0;padding:8px 8px 0}.hero-photo img{height:250px;min-height:0;max-height:none;object-position:center}.hero-photo:before{top:20px;left:20px;font-size:7px}.hero-photo figcaption{left:8px;right:8px;padding:13px;font-size:12px}.hero-photo figcaption span+span{font-size:7px}.elements{grid-template-columns:repeat(4,1fr);padding-block:26px;gap:0}.elements>div{grid-column:1/-1;margin-bottom:22px;display:flex;justify-content:space-between;gap:25px;align-items:center}.elements .eyebrow{margin:0;font-size:8px}.elements>div>p:last-child{font-size:12px}.element{padding:0 12px}.element strong{font-size:34px}.element small{font-size:10px}.element:first-of-type{border-left:0}.section{padding-block:50px}.section-head{display:block;margin-bottom:28px}.section-head>p{margin-top:20px;max-width:none;font-size:14px}.eyebrow{font-size:9px;margin-bottom:18px}h2{font-size:35px}.matrix-row{grid-template-columns:22px 1fr 20px;gap:14px;padding:22px 0}.matrix-row h3{font-size:22px}.matrix-row p{grid-column:2;grid-row:2}.matrix-row>span:last-child{grid-column:3;grid-row:1/3}.row-num{align-self:start;padding-top:6px}.matrix-row p{font-size:12px}.steps{display:block}.steps article{padding-block:22px}.steps article>span{margin-bottom:18px}.steps p{max-width:none}.steps h3{font-size:23px;margin-bottom:13px}.split{display:block}.split>.reading{margin-top:26px}.reading>.large{font-size:21px}.faqs{margin-top:28px}.cta-band{padding:30px 25px;margin-bottom:50px;gap:24px}.cta-band h2{font-size:30px}.cta-band p:not(.eyebrow){font-size:13px}.cta-band .button{font-size:12px}.footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:35px}.footer-brand{grid-column:auto}.footer-bottom{flex-direction:column;gap:8px;padding-block:25px}footer{padding-top:40px}.footer-grid h2{margin-bottom:12px}.page-intro{padding-block:45px 30px}.page-intro h1{font-size:48px}.lead{font-size:16px;margin-top:24px}.breadcrumb{font-size:9px;padding-top:22px;line-height:1.7}.element-details{gap:15px}.element-details article{padding:20px 17px}.element-details h2{font-size:22px}.element-details p{font-size:12px}.symbol{font-size:44px;margin-bottom:20px}.article-grid{display:block}.article-grid article+article{margin-top:42px}.article-grid h2{font-size:28px}.form-layout{display:block}.form-layout>div{margin-top:40px}.form-layout aside h2{font-size:31px}.field-pair{display:block}.analytes{gap:8px}.analytes label{font-size:11px;padding:10px}.form-layout .note{padding:20px}.prose{margin-left:20px}.tight{padding-top:15px}.source{padding-inline:20px}.split .button{margin-bottom:20px}.form-layout aside .eyebrow{margin-bottom:18px}.consent{display:block;padding-left:28px;position:relative}.consent input{position:absolute;left:0;top:0}.consent a{margin-left:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Full-bleed hero without creating horizontal scrolling. */
.hero{background:var(--ink);box-shadow:0 0 0 100vmax var(--ink);clip-path:inset(0 -100vmax)}.hero:before{content:none}

/* Element menu and specific testing pages. */
.range-note{padding:25px 0 4px;display:flex;align-items:center;justify-content:space-between;gap:40px}.range-note p{max-width:790px;font-size:15px;color:#4b5c54}.range-note .text-link{white-space:nowrap}.expanded-elements .element>span{visibility:hidden}.element-catalog{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #b7c7bb;margin:28px 0}.catalog-item{display:flex;align-items:center;gap:20px;padding:20px;border-bottom:1px solid #c9d4ca}.catalog-item>span{font-size:32px;color:#175c54;width:50px;flex-shrink:0;line-height:1.2}.catalog-item strong{font-size:14px;font-weight:500}.guidance-links{padding-block:10px 50px}.guidance-links h2{font-size:20px;margin-bottom:12px}.guidance-links ul{margin:0;padding-left:20px;font-size:13px}.guidance-links li{margin-top:8px}.table-scroll{overflow:auto}.data-table{border-collapse:collapse;width:100%;margin:20px 0;font-size:15px}.data-table caption{text-align:left;font-size:12px;color:#52635b;margin:12px 0}.data-table th,.data-table td{text-align:left;padding:16px 20px;border-bottom:1px solid #b7c7bb}.data-table th{background:#e3e9e1;font-size:13px}.table-intro{font-size:15px;margin-top:22px;max-width:800px}.calculation{margin:28px 0;background:#e3e9e1;border-left:3px solid #175c54;padding:25px}.calculation strong{font-size:22px;font-weight:500;line-height:1.4}.calculation p:last-child{font-size:12px;margin-top:15px}.related-tests .text-link{margin-right:30px}.analytes>.small{flex-basis:100%;margin:0 0 8px}.optional{font-weight:400;font-size:11px}.analytes{gap:9px}.analytes label{font-weight:400;min-height:44px}.range-note+.section{padding-top:64px}
@media(max-width:950px){.element-catalog{grid-template-columns:repeat(3,1fr)}.range-note{gap:20px}.range-note p{font-size:13px}.range-note .text-link{font-size:12px}.catalog-item{gap:10px;padding:16px 8px}.catalog-item>span{width:42px}.catalog-item strong{font-size:12px}}
@media(max-width:700px){.range-note{display:block;padding-top:24px}.range-note p{font-size:14px}.range-note .text-link{margin-top:8px}.element-catalog{grid-template-columns:repeat(2,1fr)}.catalog-item>span{font-size:28px;width:40px}.catalog-item strong{font-size:12px}.catalog-item{padding:15px 5px;gap:7px}.data-table th,.data-table td{padding:12px 9px;font-size:12px}.data-table th:last-child{max-width:140px}.calculation{padding:20px}.calculation strong{font-size:19px}.related-tests .text-link{display:flex;margin-right:0}.range-note+.section{padding-top:45px}.guidance-links li{overflow-wrap:anywhere}}

#element-menu>.text-link{display:table;margin-block:20px}
@media(min-width:701px) and (max-width:950px){.hero-photo{align-self:center;padding-bottom:66px}.hero-photo img{height:auto;min-height:0;max-height:none;object-fit:contain}}

.social-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.social-links a{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid #52645f;color:#a7e5d9;text-decoration:none}.social-links a:hover{color:#142022;background:#77d7c8;border-color:#77d7c8}.social-links svg{fill:currentColor;display:block;flex:none}