@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Manrope:wght@400;500;600;650;700;750;800&display=swap');
:root{--navy:#142e43;--cream:#f8f7f2;--orange:#e87957;--ink:#1d3344;--muted:#62717c;--line:#dce1df;--serif:Georgia,'Times New Roman',serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;color:var(--ink);background:var(--cream);font-family:'DM Sans',Arial,sans-serif;font-size:15px;line-height:1.6}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--orange);outline-offset:4px}button:disabled{opacity:.5;cursor:not-allowed}.preview-bar{padding:7px 5%;background:var(--navy);color:#fff;font-size:9px;letter-spacing:1.5px;display:flex;gap:18px}.preview-bar span{color:#c5d1d9;letter-spacing:.4px}header{height:100px;padding:0 5%;display:flex;align-items:center;gap:35px;border-bottom:1px solid var(--line);background:var(--cream);position:relative;z-index:5}.brand{display:flex;gap:12px;align-items:center;font-family:'Manrope',Arial,sans-serif;font-size:23px;line-height:1.05;letter-spacing:-1px;font-weight:750}.brand svg{width:40px;height:44px}.brand-bottom{display:block}.brand-dot{color:var(--orange)}nav{display:flex;gap:28px;margin-left:auto;font-size:12px;font-weight:550}.basket-button{font-size:12px;background:transparent;border:1px solid #a9b3b8;border-radius:3px;padding:10px 14px;color:var(--navy)}.basket-button span{background:var(--navy);color:#fff;margin-left:8px;padding:2px 6px;border-radius:50%;font-size:10px}.menu{display:none}.hero{display:grid;grid-template-columns:1.05fr 1fr;min-height:615px}.hero-copy{padding:76px 6% 38px 9.5%;display:flex;flex-direction:column;align-items:flex-start}.eyebrow{display:block;font-size:10px;font-weight:650;letter-spacing:1.9px;line-height:1.5}.tiny-line{display:inline-block;width:23px;height:2px;background:var(--orange);vertical-align:middle;margin-right:8px}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:'Manrope',Arial,sans-serif;line-height:1.12;letter-spacing:-2px}h1{font-size:clamp(42px,4.7vw,70px);font-weight:500;margin:26px 0 26px;line-height:1.09}em{font-family:var(--serif);font-weight:400;color:var(--orange);letter-spacing:-1.5px}h2{font-size:clamp(33px,3.4vw,50px);font-weight:500;margin:20px 0}h3{font-size:24px;letter-spacing:-.8px;font-weight:600}.hero-copy>p{max-width:440px;color:var(--muted);font-size:16px;line-height:1.8}.button{background:var(--navy);color:#fff;border:0;padding:16px 20px;display:inline-flex;justify-content:space-between;align-items:center;gap:25px;font-size:12px;font-weight:550;border-radius:2px;line-height:1.4;transition:background .2s,transform .2s}.button:hover{background:#284b64;transform:translateY(-1px)}.button span{font-size:18px}.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin:14px 0 30px}.text-link{font-size:12px;font-weight:600;border-bottom:1px solid #aab7ba;padding-bottom:3px}.hero-foot{margin-top:auto;display:flex;align-items:center;gap:14px;font-size:10px;color:var(--muted);line-height:1.7}.small-logo{border:1px solid #a7b2b8;padding:8px;font-family:var(--serif);font-size:20px;color:var(--navy)}.hero-image{position:relative;overflow:hidden;background:#183247;min-height:100%}.hero-image>img{height:100%;width:100%;object-fit:cover;position:absolute;inset:0}.photo-note{position:absolute;bottom:30px;left:30px;background:#f8f7f2ef;backdrop-filter:blur(10px);display:flex;align-items:center;padding:17px 22px;gap:15px;line-height:1.7;font-size:11px}.note-number{font-family:var(--serif);font-size:30px;color:var(--orange);border-right:1px solid #c6ccca;padding-right:16px}.vertical-note{position:absolute;right:16px;top:28px;color:#fff;writing-mode:vertical-rl;font-size:9px;letter-spacing:3px}.benefit-strip{border-block:1px solid var(--line);padding:23px 5%;display:grid;grid-template-columns:repeat(4,1fr);font-size:11px;gap:20px}.benefit-strip span{display:flex;gap:14px;align-items:center}.benefit-strip i{font-style:normal;color:var(--orange);font-size:10px}.section{padding:88px 5%}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:36px}.section-heading h2{margin-bottom:0}.section-heading>p{max-width:350px;font-size:13px;color:var(--muted);line-height:1.8;margin-bottom:3px}.filter-row{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);margin:40px 0 30px;padding-bottom:20px;gap:15px}.filters{display:flex;gap:8px;flex-wrap:wrap}.filters button{border:1px solid transparent;background:none;color:var(--muted);padding:8px 15px;border-radius:30px;font-size:11px}.filters button.active{background:var(--navy);color:#fff}.collection-count{font-size:11px;color:var(--muted)}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px 24px}.product-card{min-width:0}.product-art{height:220px;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--art);border:0;width:100%;border-radius:3px;cursor:pointer}.product-art svg{width:150px;height:180px;transition:transform .3s}.product-art:hover svg{transform:rotate(-4deg) scale(1.04)}.art-number{position:absolute;top:17px;left:18px;font-family:var(--serif);color:#344e5a77;font-size:26px}.art-tag{position:absolute;bottom:16px;right:16px;border:1px solid #243c4d44;border-radius:20px;font-size:8px;letter-spacing:1.5px;padding:4px 9px;color:var(--navy)}.product-meta{font-size:9px;letter-spacing:1.5px;color:var(--muted);display:flex;justify-content:space-between;margin:18px 0 9px}.product-card h3{font-size:23px;margin:0 0 10px;font-weight:550}.product-card>p{font-size:12px;color:var(--muted);line-height:1.8;max-width:330px;margin-bottom:20px}.product-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:14px;border-top:1px solid var(--line);font-size:11px}.product-bottom strong{font-size:16px;font-weight:550}.product-bottom button{border:0;background:none;font-size:11px;color:var(--navy);padding:8px 0}.collection-footer{display:flex;justify-content:space-between;gap:20px;margin-top:36px;align-items:center;font-size:12px;color:var(--muted)}.collection-footer p{margin:0}.question-section{background:var(--navy);color:white;padding:70px 10%;display:grid;grid-template-columns:1fr 1fr;gap:12%;align-items:center}.question-intro h2{font-size:48px;line-height:1.18}.question-intro>p{color:#b4c6d1;max-width:310px;font-size:13px;margin:25px 0}.light-link{font-size:12px;border-bottom:1px solid #91a4af;padding-bottom:5px}.interactive-demo{background:#fff;color:var(--navy);padding:30px;border-radius:4px;box-shadow:0 20px 60px #0002}.demo-top{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:25px}.pill{font-size:8px;background:#eaf0ee;padding:6px 9px;letter-spacing:1px}.demo-index{font-size:8px;color:var(--muted);letter-spacing:1px}.interactive-demo h3{font-size:27px;font-weight:500}.reaction-visual{display:flex;gap:30px;align-items:center;padding:0 10px 25px}.tube{width:44px;height:125px;border:2px solid #b3c6cd;border-top:5px solid #8dabb8;border-radius:0 0 22px 22px;position:relative;overflow:hidden;flex-shrink:0;background:#f4f8f8}.tube-liquid{position:absolute;bottom:0;left:0;right:0;height:68%;background:#e87957;opacity:.8;transition:height .5s,background .5s}.bubbles i{position:absolute;left:15px;bottom:12px;border:1px solid white;border-radius:100%;height:7px;width:7px;animation:bubble 3s infinite}.bubbles i:nth-child(2){left:8px;animation-delay:1s}.bubbles i:nth-child(3){left:25px;animation-delay:2s}@keyframes bubble{to{transform:translateY(-80px);opacity:0}}.demo-label{font-size:8px;letter-spacing:1.5px;color:var(--muted)}.demo-output strong{display:block;font-family:var(--serif);font-size:34px;font-weight:400}.demo-output p{font-size:11px;line-height:1.6;color:var(--muted);margin:5px 0 0;max-width:200px}.slider-label{font-size:11px;display:flex;justify-content:space-between}input[type=range]{width:100%;accent-color:var(--orange);margin:15px 0 0}.range-labels{display:flex;justify-content:space-between;color:var(--muted);font-size:9px}.demo-disclaimer{font-size:9px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin:18px 0 0}.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:45px}.resource{border:0;border-right:1px solid var(--line);background:none;text-align:left;padding:0 35px;color:inherit}.resource:first-child{padding-left:0}.resource:last-child{border:0}.resource-icon{font-size:35px;display:block;color:var(--orange);line-height:1;margin-bottom:25px}.resource-type{font-size:9px;letter-spacing:1.5px;color:var(--muted)}.resource h3{font-size:24px;line-height:1.3;margin:13px 0}.resource p{font-size:12px;color:var(--muted);max-width:280px;line-height:1.8}.resource .text-link{display:inline-block;margin-top:12px}.teacher-note{border-top:1px solid var(--line);margin-top:45px;padding-top:20px;display:flex;gap:35px;align-items:flex-start}.teacher-note>span{font-size:8px;letter-spacing:1.5px;white-space:nowrap;margin-top:3px}.teacher-note p{font-size:10px;color:var(--muted);margin:0;max-width:760px}.planner-section{padding:75px 10%;background:#e9eeea;display:grid;grid-template-columns:1fr 1.2fr;gap:13%;align-items:center}.planner-copy h2{font-size:50px}.planner-copy>p{color:var(--muted);font-size:13px;max-width:290px}.planner-note{display:flex;gap:15px;font-size:11px;line-height:1.8;margin-top:35px}.planner-note>span{font-size:24px;color:var(--orange)}.planner-note a{border-bottom:1px solid #a6b4af}.planner{padding:32px;background:var(--cream);border:1px solid #d0dbd4;border-radius:4px}.planner-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.planner-top h3{font-size:23px;margin:0}.planner-top>span{font-size:9px;color:var(--muted)}label{display:block;font-size:11px;font-weight:550;margin-bottom:8px}select,input[type=number]{background:transparent;border:1px solid #c7d0cd;padding:12px;width:100%;border-radius:2px;color:var(--ink);font-size:12px;min-height:44px}.planner-inputs{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:22px}.plan-results{border-block:1px solid #c7d0cd;display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:12px;padding:23px 0;margin-top:28px}.plan-results span{font-size:9px;color:var(--muted);display:block}.plan-results strong{font-size:26px;display:block;font-weight:500;margin-top:8px}.small{font-size:11px;color:var(--muted);line-height:1.7}.planner .small{margin:15px 0}.planner .button{width:100%;margin-top:8px}.planner-disclaimer{font-size:9px;color:var(--muted);margin:15px 0 0;line-height:1.7}.ordering{text-align:center}.ordering h2{margin-bottom:50px}.steps{display:grid;grid-template-columns:repeat(3,1fr);text-align:left;gap:45px}.steps article{border-top:1px solid var(--line);padding-top:22px}.steps span{font-size:9px;letter-spacing:1.5px;color:var(--muted)}.steps h3{font-size:23px;margin:15px 0}.steps p{font-size:12px;line-height:1.8;color:var(--muted);max-width:310px}.contact{margin:0 5% 70px;background:#e8a48a;padding:50px 6%;display:flex;align-items:center;justify-content:space-between;gap:40px;border-radius:3px}.contact h2{font-size:41px}.contact p{font-size:13px;max-width:460px;margin-bottom:0}.cream{background:var(--cream);color:var(--navy);white-space:nowrap}.cream:hover{color:white}footer{padding:40px 5%;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:35px;font-size:9px;line-height:2;color:var(--muted)}.footer-brand{font-family:'Manrope',Arial,sans-serif;font-size:25px;letter-spacing:-1.3px;font-weight:650;color:var(--navy)}.footer-brand span{color:var(--orange)}footer a:not(.footer-brand){font-size:10px;border-bottom:1px solid var(--line)}footer p{margin:0}dialog{width:min(760px,94vw);padding:45px;border:0;border-radius:5px;color:var(--ink);background:var(--cream);max-height:90dvh;overflow-y:auto;box-shadow:0 20px 100px #0004}dialog::backdrop{background:#0c2334aa;backdrop-filter:blur(4px)}dialog h2{font-size:36px}dialog h3{font-size:20px}dialog p,dialog li{font-size:13px;color:var(--muted)}.dialog-close{position:absolute;right:18px;top:12px;font-size:30px;background:none;border:0;color:var(--ink)}.detail-labels{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:25px}.detail-labels span{border:1px solid var(--line);padding:5px 10px;border-radius:20px;font-size:10px}.detail-actions{display:flex;gap:10px;flex-wrap:wrap}.secondary{background:transparent;border:1px solid #b6c2c6;color:var(--navy)}.basket-row{padding:20px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:20px}.basket-row h3{font-size:18px;letter-spacing:-.5px;margin-bottom:5px}.basket-row p{margin:0;font-size:11px}.basket-controls{display:flex;gap:12px;align-items:center}.basket-controls button{background:none;border:1px solid var(--line);width:28px;height:28px;color:var(--ink)}.basket-total{display:flex;justify-content:space-between;margin-top:28px;font-size:16px}.toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,20px);background:var(--navy);color:#fff;padding:14px 24px;border-radius:3px;z-index:30;font-size:12px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;box-shadow:0 10px 30px #0002}.toast.visible{opacity:1;transform:translate(-50%,0)}.empty{padding:25px 0;font-size:13px;color:var(--muted)}
@media(min-width:1500px){main,header,footer,.benefit-strip{max-width:1700px;margin-inline:auto}.hero-copy{padding-left:10%}.hero{min-height:690px}}
@media(max-width:1050px){header{gap:20px}nav{gap:15px;font-size:11px}.hero{min-height:570px}.hero-copy{padding-top:55px}h1{font-size:49px}.hero-actions{gap:18px}.hero-copy>p{font-size:14px}.hero-actions .text-link{font-size:11px}.question-section,.planner-section{padding:65px 6%;gap:8%}.question-intro h2{font-size:40px}.product-art{height:200px}.product-card h3{font-size:20px}}
@media(max-width:760px){header{height:82px;padding-inline:6%}.brand{font-size:20px}.brand svg{width:32px}nav{display:none;position:absolute;top:82px;left:0;right:0;padding:25px 6%;background:var(--cream);box-shadow:0 15px 20px #0001}nav.open{display:flex;flex-direction:column;gap:18px;font-size:14px}.basket-button{margin-left:auto;padding:8px 10px;font-size:11px}.menu{display:block;border:0;background:none;color:var(--navy);font-size:21px;padding:3px}.preview-bar{font-size:8px;padding-inline:6%;gap:12px}.preview-bar span{font-size:8px;letter-spacing:0}.hero{grid-template-columns:1fr;min-height:0}.hero-copy{padding:45px 6% 32px}.hero h1{font-size:clamp(43px,8vw,62px);margin:24px 0}.hero-copy>p{font-size:15px;max-width:480px}.hero-foot{margin-top:5px}.hero-image{height:360px}.photo-note{left:6%;bottom:24px}.benefit-strip{grid-template-columns:1fr 1fr;gap:20px;padding:25px 6%;font-size:10px}.section{padding:58px 6%}.section-heading{display:block;margin-bottom:25px}.section-heading>p{margin-top:22px;max-width:450px}h2{font-size:37px}.filter-row{align-items:flex-start;margin-top:26px}.filters{gap:4px}.filters button{padding:7px 10px;font-size:10px}.collection-count{display:none}.product-grid{grid-template-columns:1fr 1fr;gap:30px 16px}.product-art{height:190px}.product-art svg{width:120px;height:155px}.product-meta{font-size:8px;letter-spacing:.7px}.product-card h3{font-size:19px}.product-card>p{font-size:11px;line-height:1.7;margin-bottom:14px}.product-bottom{display:block;padding-top:10px}.product-bottom button{display:block}.product-bottom strong{font-size:15px}.art-number{font-size:22px;left:12px;top:12px}.art-tag{font-size:7px;right:10px;bottom:10px;padding:3px 7px}.collection-footer{display:block;font-size:11px}.collection-footer a{display:inline-block;margin-top:15px}.question-section{grid-template-columns:1fr;padding:52px 6%;gap:32px}.question-intro h2{font-size:42px}.question-intro>p{max-width:100%}.interactive-demo{max-width:500px;width:100%}.resource-grid{grid-template-columns:1fr;gap:30px;margin-top:32px}.resource,.resource:first-child{padding:0 0 28px;border-right:0;border-bottom:1px solid var(--line)}.resource-icon{float:right;font-size:30px}.resource h3{font-size:25px}.resource p{max-width:90%}.teacher-note{display:block;margin-top:22px}.teacher-note p{margin-top:10px}.planner-section{grid-template-columns:1fr;padding:52px 6%;gap:28px}.planner-copy h2{font-size:43px}.planner-copy>p{max-width:430px}.planner-note{margin-top:20px}.planner{padding:25px}.planner-inputs{gap:12px}.plan-results{gap:10px}.plan-results span{font-size:8px}.steps{grid-template-columns:1fr;gap:20px}.steps p{max-width:none}.ordering h2{margin-bottom:30px}.contact{margin:0 6% 45px;padding:35px 7%;display:block}.contact h2{font-size:34px}.contact .button{margin-top:25px}footer{padding:30px 6%;flex-wrap:wrap;gap:22px}.footer-brand{width:100%;font-size:25px}dialog{padding:38px 24px}.detail-actions .button{width:100%}.basket-row{align-items:flex-start}.basket-controls{gap:8px}.toast{max-width:90vw;width:max-content}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
@media print{body>*:not(dialog){display:none!important}dialog[open]{display:block;position:static;width:100%;max-height:none;box-shadow:none;border:0}.dialog-close,.detail-actions{display:none}dialog::backdrop{display:none}}
[hidden]{display:none!important}
/* Education collection */
.skip{position:absolute;top:-80px;left:20px;background:white;padding:12px;z-index:50}.skip:focus{top:10px}.hero{min-height:560px;max-height:720px}.hero-copy{padding-top:50px;padding-bottom:30px}.hero h1{font-size:clamp(44px,4.6vw,68px);margin-block:22px}.hero-copy>p{font-size:15px;line-height:1.75}.hero-actions{gap:16px;margin-bottom:22px}.hero-image>img{object-position:55% center}.hero-foot{margin-top:12px}.audience-section{padding:70px 5% 10px}.audience-intro{display:flex;justify-content:space-between;align-items:center;gap:30px}.audience-intro h2{font-size:36px;margin:0}.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:40px}.audience-grid>a{border-top:1px solid #bbc6c7;padding:25px 0;transition:transform .2s}.audience-grid>a:hover{transform:translateY(-3px)}.audience-grid span,.university-topics span{font-size:9px;letter-spacing:1.7px;color:var(--muted)}.audience-grid h3{font-size:25px;line-height:1.2;margin:16px 0}.audience-grid p{font-size:13px;color:var(--muted);max-width:330px}.audience-grid b{font-size:11px;color:var(--navy)}.featured-kit{background:#eee9df;display:grid;grid-template-columns:1fr 1fr;gap:8%;align-items:center}.kit-image{height:480px;display:flex;justify-content:center;align-items:center;background:#faf8f2;border-radius:4px;overflow:hidden}.kit-image img{height:95%;width:95%;object-fit:contain}.featured-kit p{font-size:13px;color:var(--muted);max-width:510px}.featured-kit .small{font-size:10px}.kit-contents{padding-left:19px;font-size:12px;line-height:2}.kit-buy{display:flex;align-items:center;gap:25px;margin:24px 0 12px}.kit-buy>strong{font-size:29px;font-weight:500}.shelf-section{display:grid;grid-template-columns:1fr 1fr;gap:10%;align-items:center}.shelf-section>div>p{font-size:14px;color:var(--muted);max-width:480px}.shelf-details{border-left:1px solid #cbd4cf;padding-left:50px}.shelf-number{font-family:Georgia,serif;font-size:85px;line-height:1;color:var(--navy);display:block;margin-bottom:22px}.shelf-number>span{font-family:'DM Sans',Arial,sans-serif;font-size:18px;margin-left:12px;letter-spacing:0}.shelf-details h3{font-size:23px}.shelf-details .small{font-size:11px}.calculator-section{padding:75px 7%;background:#e7eeea;display:grid;grid-template-columns:.85fr 1.15fr;gap:9%;align-items:start}.calculator-copy{padding-top:30px}.calculator-copy h2{font-size:clamp(36px,3.5vw,51px)}.calculator-copy>p{font-size:14px;color:var(--muted);max-width:390px}.calc-explainer{display:grid;grid-template-columns:25px 1fr;gap:18px 12px;margin:35px 0}.calc-explainer span{color:var(--orange);font-size:11px;padding-top:2px}.calc-explainer p{font-size:13px;margin:0}.calculator-copy>.small{font-size:11px}.calculator{background:var(--cream);padding:32px;border:1px solid #d0d9d2;border-radius:4px;box-shadow:0 15px 45px #153d2d08}.calc-inputs{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px;margin:22px 0}.calc-inputs label{font-size:10px;min-height:16px}.calculator .small{font-size:10px;margin-top:12px}.cost-hero{padding:25px;background:var(--navy);color:white;display:flex;flex-direction:column;border-radius:3px;text-align:center}.cost-hero>span{font-size:9px;letter-spacing:1px;color:#c8d9dd}.cost-hero>strong{font-family:Georgia,serif;font-weight:400;font-size:62px;line-height:1.2;margin:7px 0;color:#f5bc9a}.cost-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding:25px 0;border-bottom:1px solid var(--line)}.cost-grid span{display:block;font-size:10px;color:var(--muted)}.cost-grid strong{font-size:23px;font-weight:500}.calculator details{font-size:11px;margin:17px 0}.calculator summary{cursor:pointer;font-weight:600}.calculator .button{width:100%;margin-top:15px}.calc-error{color:#9c382b;font-size:12px}.university-section{background:var(--navy);color:white;display:grid;grid-template-columns:1fr 1fr;gap:10%;align-items:center}.university-section>div>p{font-size:14px;color:#c0d0da;max-width:430px;margin-bottom:28px}.university-section .button{background:#f3b49b;color:var(--navy)}.university-topics article{border-bottom:1px solid #ffffff25;padding:20px 0}.university-topics article:last-child{border-bottom:0}.university-topics span{color:#b9cbd4}.university-topics h3{font-size:23px;margin:12px 0}.university-topics p{color:#bdccd5;font-size:12px;margin:0}.hero-image{min-height:0}.teacher-note p{max-width:900px}.product-meta{flex-wrap:wrap;gap:5px}.product-bottom{gap:10px}.product-bottom>span{font-size:10px}.footer-brand{font-size:23px}
@media(max-width:1050px){nav{gap:15px}.brand{font-size:20px}.hero h1{font-size:49px}.hero{max-height:none}.hero-copy{padding-top:42px}.hero-copy>p{font-size:14px}.hero-actions .button{font-size:11px;padding:13px 15px}.calculator-section{gap:5%;padding:60px 5%}.calculator{padding:25px}.kit-image{height:400px}.kit-buy{flex-wrap:wrap;gap:12px}.shelf-details{padding-left:30px}.shelf-number{font-size:70px}}
@media(max-width:760px){.hero{max-height:none}.hero-copy{padding-top:38px}.hero h1{font-size:clamp(43px,9vw,60px)}.hero-image{height:320px}.audience-section{padding:45px 6% 0}.audience-intro{display:block}.audience-intro h2{font-size:32px;margin-top:15px}.audience-grid{grid-template-columns:1fr;gap:5px;margin-top:25px}.audience-grid>a{padding-block:22px}.audience-grid h3{font-size:25px}.audience-grid p{max-width:none}.featured-kit,.shelf-section,.calculator-section,.university-section{grid-template-columns:1fr;gap:32px}.kit-image{height:330px}.kit-buy{gap:22px}.shelf-details{border-left:0;border-top:1px solid #cbd4cf;padding:28px 0 0}.shelf-number{font-size:75px}.calculator-section{padding:45px 6%}.calculator-copy{padding:0}.calculator-copy h2{font-size:38px}.calculator-copy>p{max-width:none}.calc-explainer{margin:25px 0;gap:12px}.calculator{padding:23px 18px}.calc-inputs{gap:17px 12px}.calc-inputs label{font-size:10px;line-height:1.4;min-height:28px}.calculator input{font-size:16px}.calculator select{font-size:13px}.university-section{padding-block:48px}.university-topics h3{font-size:22px}.preview-bar span{max-width:230px}.preview-bar{align-items:center}.benefit-strip{font-size:9px}.product-art{height:185px}.product-card h3{font-size:19px}.kit-buy .button{font-size:11px}.footer-brand{font-size:23px}}
.offer-bar{display:flex;align-items:center;justify-content:center;gap:30px;background:var(--navy);color:white;padding:11px 5%;font-size:11px;line-height:1.5}.offer-bar strong{font-weight:650;color:#f3b49b}.offer-bar a:hover{text-decoration:underline}.offer-divider{height:15px;border-left:1px solid #ffffff45}.multi-kits{background:#edf0e9}.multi-kit-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.multi-kit-card{background:var(--cream);border:1px solid #d9dfd7;border-radius:4px;overflow:hidden}.multi-kit-art{height:300px;position:relative;background:#e2e8df;display:flex;align-items:center;justify-content:center}.multi-kit-card:nth-child(2) .multi-kit-art{background:#e2e8ee}.multi-kit-art img{height:96%;width:82%;object-fit:contain;mix-blend-mode:multiply}.kit-count{position:absolute;z-index:1;top:18px;left:20px;font-family:Georgia,serif;font-size:53px;line-height:1;color:var(--navy)}.kit-count small{font-family:Arial,sans-serif;font-size:8px;letter-spacing:1px;display:block;margin-top:7px}.multi-kit-body{padding:28px}.multi-kit-body h3{font-size:30px;margin-top:12px}.multi-kit-body>p{font-size:13px;color:var(--muted);min-height:65px}.enzyme-chips{display:flex;flex-wrap:wrap;gap:7px;min-height:68px;align-content:start}.enzyme-chips span{font-size:10px;border:1px solid #cbd6cd;padding:5px 9px;border-radius:20px}.multi-kit-bottom{border-top:1px solid var(--line);padding-top:23px;margin-top:15px;display:flex;justify-content:space-between;align-items:center;gap:15px}.multi-kit-bottom>div>span{font-size:9px;color:var(--muted);display:block}.multi-kit-bottom strong{font-size:27px;display:block;font-weight:500}.multi-kit-bottom small{font-size:10px;display:block;color:var(--muted)}.multi-kit-bottom .button{padding:13px 16px;font-size:11px;white-space:nowrap}.education-offers{padding-top:20px;display:grid;grid-template-columns:1fr 1fr;gap:6%}.education-offers article{border-top:2px solid var(--orange);padding:25px 0 0}.education-offers h3{font-size:28px;margin-top:15px;line-height:1.2}.education-offers p{font-size:13px;color:var(--muted);max-width:480px}.discount-toggle{margin-top:20px;display:flex;align-items:center;gap:10px;font-size:12px}.discount-toggle input{width:17px;height:17px;accent-color:var(--navy)}.enzyme-search{width:100%;max-width:550px;border:1px solid #b8c6c3;border-radius:3px;background:#fff9;padding:13px 16px;color:var(--navy);font:inherit;font-size:13px}.collection-guidance{font-size:11px;color:var(--muted);margin:12px 0 28px;max-width:850px}.search-label{font-size:11px}.product-meta{min-height:27px}.product-meta>span:last-child{font-size:8px;letter-spacing:.5px}.product-art svg text{font-size:7px}.product-art svg text:nth-last-of-type(2){font-size:7px}header{gap:25px}nav{gap:20px;font-size:11px}.hero-image>img{object-position:center 42%}
@media(max-width:1100px){.offer-bar{gap:20px;font-size:10px}nav{gap:12px}header{gap:18px}.multi-kit-bottom{align-items:start;flex-direction:column}.multi-kit-art{height:260px}.multi-kit-body{padding:24px}.multi-kit-body h3{font-size:27px}}
@media(max-width:760px){.offer-bar{flex-direction:column;gap:3px;text-align:center;font-size:10px;padding:9px 5%}.offer-divider{display:none}.offer-bar a span{font-size:9px}.offer-bar a:first-child span{display:none}.multi-kit-grid,.education-offers{grid-template-columns:1fr;gap:28px}.multi-kit-art{height:270px}.multi-kit-body>p{min-height:0}.enzyme-chips{min-height:0}.multi-kit-bottom{flex-direction:row;align-items:center;flex-wrap:wrap}.multi-kit-body{padding:23px}.education-offers{padding-top:10px}.enzyme-search{font-size:16px}.product-meta{min-height:38px}.hero-image{height:360px}.hero-image>img{object-position:center 38%}}
.study-guides{background:#ede8df}.study-links{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}.study-links a{border-top:1px solid #bac5c0;padding:18px 0;display:flex;justify-content:space-between;gap:15px;font-size:14px}.study-links b{font-size:10px;white-space:nowrap;color:var(--muted)}.faq{padding-top:20px}.faq details{border-top:1px solid var(--line);padding:20px 0}.faq summary{cursor:pointer;font-size:17px;font-weight:550}.faq details p{font-size:13px;color:var(--muted);max-width:850px;margin:15px 0 0}.guide-page{max-width:1150px;margin:auto;padding:35px 6% 70px}.guide-breadcrumb{font-size:11px;color:var(--muted);margin-bottom:45px}.guide-hero{max-width:900px;padding-bottom:40px}.guide-hero h1{font-size:clamp(39px,4.6vw,65px)}.guide-hero p{font-size:17px;color:var(--muted);max-width:780px}.guide-content h2{font-size:32px;margin:40px 0 20px}.guide-content>p{font-size:14px;color:var(--muted);max-width:850px}.guide-experiments{display:grid;grid-template-columns:1fr 1fr;gap:30px}.guide-experiments article{border-top:1px solid var(--line);padding-top:20px}.guide-experiments h3{font-size:24px;line-height:1.25}.guide-experiments p{font-size:13px;color:var(--muted)}.guide-actions{display:flex;flex-wrap:wrap;gap:15px;margin:25px 0}.product-card h3{font-size:22px}.product-bottom>a{font-size:10px;text-decoration:underline;text-underline-offset:3px}
@media(max-width:760px){.study-links,.guide-experiments{grid-template-columns:1fr}.study-links a{font-size:13px}.faq summary{font-size:16px}.guide-hero h1{font-size:40px}.guide-hero p{font-size:15px}.guide-nav{display:flex;position:static;padding:0;box-shadow:none;font-size:10px;gap:10px;background:none;flex-wrap:wrap}.guide-content h2{font-size:29px}.product-card h3{font-size:18px}}
/* Larger bottles, fitted labels and complete product photography */
.product-art{height:300px;padding:16px 50px;isolation:isolate}.product-art svg{width:225px;height:265px;max-width:95%;flex-shrink:0}.product-art:hover svg{transform:translateY(-3px) scale(1.02)}.product-art .art-tag{z-index:2}.product-card{display:flex;flex-direction:column}.product-card>p{max-width:none}.product-bottom{margin-top:auto}.guide-card-link{font-size:12px;font-weight:600;text-decoration:underline;text-underline-offset:4px;display:inline-block;margin:0 0 22px;align-self:start}.guide-modal-button{margin:6px 0 25px}.multi-kit-art{height:350px;overflow:hidden;position:relative}.multi-kit-art img{position:absolute;inset:0;width:100%;height:100%;max-width:none;object-fit:cover;object-position:50% 50%;mix-blend-mode:multiply}.multi-kit-card:first-child .multi-kit-art img{transform:scale(1.12)}.multi-kit-card{display:flex;flex-direction:column}.multi-kit-body{display:flex;flex-direction:column;flex:1}.multi-kit-bottom{margin-top:auto;padding-top:22px}.enzyme-chips{margin-bottom:22px}.kit-count{font-size:44px;top:16px;left:18px;background:#f8f7f2d9;padding:9px 12px;border-radius:3px}.multi-kit-body>p{min-height:0}.kit-image{padding:18px;height:auto;min-height:360px;aspect-ratio:1/1}.kit-image img{width:100%;height:100%;max-height:520px;object-fit:contain;display:block}.guide-status{background:#edf0e9;border-left:3px solid var(--orange);padding:20px 24px;margin-bottom:35px}.guide-status>strong{font-size:14px}.guide-status p{font-size:12px;color:var(--muted);margin:8px 0 0}.guide-badges{display:flex;flex-wrap:wrap;gap:9px;margin:24px 0}.guide-badges span{font-size:10px;padding:6px 10px;border:1px solid var(--line);border-radius:20px}.timing-panel{display:grid;grid-template-columns:1fr 1fr;gap:25px;border-block:1px solid var(--line);padding:20px 0;margin:25px 0}.timing-panel span{font-size:10px;display:block;color:var(--muted)}.timing-panel strong{font-size:16px;font-weight:550;display:block;margin-top:7px}.experiment-layout{display:grid;grid-template-columns:180px minmax(0,1fr);gap:45px}.guide-toc{position:sticky;top:25px;align-self:start;display:flex;flex-direction:column;gap:12px;font-size:11px}.guide-toc>.eyebrow{margin-bottom:7px}.guide-toc a{border-bottom:1px solid var(--line);padding-bottom:10px}.experiment-layout .guide-content h2{font-size:30px;margin-top:22px}.experiment-layout .guide-content h3{font-size:22px;margin:25px 0 13px;line-height:1.25}.experiment-layout .guide-content section{scroll-margin-top:25px;margin-bottom:38px;border-bottom:1px solid var(--line);padding-bottom:25px}.experiment-layout .guide-content p,.experiment-layout .guide-content li{font-size:13px;line-height:1.85;color:var(--muted)}.experiment-layout ul,.experiment-layout ol{padding-left:23px}.experiment-layout li{padding-left:5px;margin-bottom:12px}.class-method li{padding:12px 0 14px 10px;border-bottom:1px solid var(--line)}.class-method li::marker{color:var(--orange);font-weight:650;font-size:17px}.reaction-equation{background:var(--navy);color:#fff;padding:24px;font-size:18px;line-height:1.7;border-radius:3px;margin-bottom:22px}.dose-note{background:#eee9df;padding:20px;margin-top:25px}.dose-note>strong{font-size:13px}.dose-note p{margin:8px 0 0}.experiment-guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.experiment-guide-card{display:flex;flex-direction:column;background:#edf0e9;padding:28px;border-radius:3px;border-top:2px solid #c4d0c7}.experiment-guide-card h3{font-size:25px;line-height:1.2;margin:15px 0}.experiment-guide-card p{font-size:13px;color:var(--muted)}.guide-card-time{font-size:11px;font-weight:550;color:var(--navy);padding-top:15px;margin-top:auto}.experiment-guide-card b{font-size:12px;margin-top:14px}.table-scroll{overflow:auto}.results-table{border-collapse:collapse;width:100%;font-size:10px;margin:24px 0}.results-table caption{text-align:left;font-size:10px;margin-bottom:10px;color:var(--muted)}.results-table th,.results-table td{border:1px solid #bdc9c4;text-align:left;padding:10px 8px}.results-table th{background:#edf0e9}.full-guide-callout{margin:0 5%;padding:35px;background:#e3eae7;display:flex;align-items:center;gap:30px;justify-content:space-between}.full-guide-callout h3{font-size:27px;margin:13px 0}.full-guide-callout p{font-size:13px;color:var(--muted);margin:0;max-width:650px}.full-guide-callout .button{flex-shrink:0;max-width:260px}.guide-sources a{text-decoration:underline;text-underline-offset:3px}
@media(max-width:1050px){.product-art{padding-inline:25px;height:280px}.product-art svg{height:245px;width:205px}.multi-kit-art{height:300px}.experiment-layout{grid-template-columns:150px minmax(0,1fr);gap:25px}.full-guide-callout{align-items:start;flex-direction:column}.kit-count{font-size:37px}}
@media(max-width:760px){.product-art{padding:14px 10px;height:250px}.product-art svg{width:150px;height:225px;max-width:100%}.art-number{font-size:17px;top:10px;left:10px;z-index:2}.art-tag{display:none}.product-card h3{font-size:18px}.guide-card-link{font-size:11px}.multi-kit-art{height:290px}.multi-kit-card:first-child .multi-kit-art img{transform:scale(1.08)}.kit-count{font-size:33px;padding:8px 10px;left:12px;top:12px}.kit-image{min-height:260px}.experiment-layout{grid-template-columns:1fr;gap:15px}.guide-toc{position:static;display:grid;grid-template-columns:1fr 1fr;gap:9px 18px;margin-bottom:25px}.guide-toc>.eyebrow{grid-column:1/-1}.timing-panel,.experiment-guide-grid{grid-template-columns:1fr;gap:16px}.timing-panel strong{font-size:15px}.experiment-layout .guide-content h2{font-size:27px}.reaction-equation{font-size:15px;padding:19px}.guide-status{padding:18px}.full-guide-callout{margin-inline:6%;padding:25px}.full-guide-callout h3{font-size:25px}.full-guide-callout .button{max-width:100%}.experiment-guide-card{padding:23px}}
@media print{body.experiment-guide>*{display:block!important}body.experiment-guide>header,body.experiment-guide>.offer-bar,body.experiment-guide>footer,.experiment-guide .guide-actions,.experiment-guide .guide-toc,.experiment-guide .guide-breadcrumb,.experiment-guide .skip{display:none!important}.experiment-guide .guide-page{max-width:none;padding:0}.experiment-guide .experiment-layout{display:block}.experiment-guide .guide-hero{padding:0}.experiment-guide h1{font-size:27px!important}.experiment-guide h2{font-size:19px!important}.experiment-guide h3{font-size:15px!important}.experiment-guide p,.experiment-guide li{font-size:10px!important;color:#222!important}.experiment-guide .reaction-equation{color:#111;background:#eee;font-size:13px}.experiment-guide section{break-inside:auto}.experiment-guide h2,.experiment-guide h3{break-after:avoid}.experiment-guide .student-worksheet{break-before:page}.experiment-guide .guide-status{padding:10px}.experiment-guide .timing-panel{gap:12px}.experiment-guide .results-table{width:100%;font-size:9px}.experiment-guide .class-method li{padding:4px 0 5px 5px}}