*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:#142034;font:17px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif}a{color:inherit;text-underline-offset:5px}a:hover{color:#2457eb}a:focus-visible{outline:3px solid #2457eb;outline-offset:5px}header,main,footer{max-width:1240px;margin:auto;padding:0 40px}header{display:flex;align-items:center;justify-content:space-between;min-height:100px;border-bottom:1px solid #e1e5ec}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:27px;font-weight:750;letter-spacing:-1.2px;white-space:nowrap}.brand img{width:42px;height:42px}nav{display:flex;gap:30px;font-size:15px;font-weight:600}nav a{text-decoration:none}h1,h2,h3{line-height:1.1;font-weight:650;letter-spacing:-1.5px;margin:0}.eyebrow{font-size:13px;font-weight:700;letter-spacing:1.7px;text-transform:uppercase;color:#2457eb}.prelaunch{background:#142034;color:#fff;padding:8px 40px;font-size:11px;letter-spacing:1.2px;text-align:center}.prelaunch span{color:#c8d99b;margin-left:45px}.intro{padding:55px 0 35px}.intro h1{font-size:clamp(54px,7.6vw,96px);letter-spacing:-5px;margin-top:18px;line-height:.99}.intro h1 em{font-family:Georgia,serif;font-weight:400;color:#2457eb}.intro-bottom{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-top:22px}.intro-bottom p{margin:0;color:#566173;font-size:18px}.textlink{font-size:14px;font-weight:650;white-space:nowrap}.featured{display:grid;grid-template-columns:1fr 1fr;background:#edf2ff;border-radius:16px;overflow:hidden;min-height:365px}.featurecopy{padding:42px}.tag{font-size:12px;letter-spacing:1.5px;font-weight:750;color:#2457eb}.featurecopy h2{font-size:38px;margin:20px 0 14px}.featurecopy p{font-size:17px;color:#526077}.button{display:inline-flex;align-items:center;justify-content:center;background:#2457eb;color:#fff;padding:12px 22px;border-radius:6px;font-size:15px;font-weight:650;text-decoration:none;transition:background .15s}.button:hover{background:#173caf;color:white}.featuremeta{display:block;font-size:10px;letter-spacing:1.2px;margin-top:24px;color:#5d6b80}.featureimage{margin:0;position:relative;background:#2457eb;min-height:320px}.featureimage img{width:100%;height:100%;position:absolute;object-fit:cover}.featureimage figcaption{position:absolute;bottom:0;padding:8px 12px;background:#142034d9;color:#fff;font-size:10px;width:100%}.topics{display:grid;grid-template-columns:repeat(3,1fr);margin:30px 0 65px;border:1px solid #dfe4ed;border-radius:12px;overflow:hidden}.topics a{padding:24px;text-decoration:none;display:flex;flex-direction:column;border-right:1px solid #dfe4ed;transition:background .15s}.topics a:last-child{border:none}.topics a:hover{background:#f2f5fe}.topics small{font-size:11px;font-weight:700;letter-spacing:1px;color:#657184}.topics strong{font-size:25px;letter-spacing:-.8px;margin:6px 0}.topics span{font-size:14px;color:#657184}.sectionhead{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:28px}.sectionhead h2{font-size:35px;margin-top:12px}.count{font-size:11px;color:#657184;letter-spacing:1px;white-space:nowrap}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.card{border:1px solid #e0e5ec;border-radius:12px;padding:26px;position:relative;text-decoration:none;display:flex;flex-direction:column;align-items:start;transition:transform .18s,box-shadow .18s}.card:hover{transform:translateY(-4px);box-shadow:0 12px 25px #1420340c;color:#142034}.card .num{position:absolute;right:22px;top:21px;font-size:13px;color:#8390a3}.pill{font-size:10px;padding:5px 9px;border-radius:4px;font-weight:750;letter-spacing:.6px}.collagen{background:#fce9df;color:#923d15}.creatine{background:#eaf0ff;color:#2049bd}.amino{background:#e6f4e1;color:#3f641e}.card h3{font-size:24px;letter-spacing:-.6px;margin:25px 0 12px;line-height:1.2}.card p{font-size:15px;color:#647083;margin:0 0 25px}.card>span{font-size:14px;font-weight:650;margin-top:auto;color:#2457eb}.strip{background:#142034;color:#fff;display:grid;grid-template-columns:1fr 1fr;gap:55px;margin:65px 0 45px;border-radius:16px;padding:45px}.strip .eyebrow{color:#d5ee68}.strip h2{font-size:38px;margin:18px 0 25px}.light{background:#d5ee68;color:#142034}.light:hover{background:#e1f59a;color:#142034}.principles p{display:flex;gap:18px;margin:0;padding:18px 0;border-bottom:1px solid #3f4a5c}.principles p:last-child{border:0}.principles b{font-size:12px;color:#d5ee68}.principles span{font-size:14px;color:#c1cada}.principles strong{display:block;color:#fff;font-size:17px;font-weight:600;margin-bottom:4px}footer{padding-top:30px;padding-bottom:35px;border-top:1px solid #dfe4ed;display:flex;justify-content:space-between;gap:35px;font-size:13px;color:#657184}footer .brand{font-size:24px;color:#142034}footer p{max-width:440px}footer a{margin-right:18px}.categoryintro{padding:60px 0 40px;max-width:800px}.categoryintro h1{font-size:65px;margin:15px 0 20px;letter-spacing:-3px}.lead{font-size:21px;color:#5b677b;line-height:1.55}.article{max-width:760px;margin:45px auto 75px}.article .back{display:inline-block;background:#edf2ff;color:#2457eb;border-radius:5px;padding:6px 12px;font-size:13px;text-decoration:none;font-weight:650}.article h1{font-size:54px;letter-spacing:-2.5px;margin:24px 0}.article h2{font-size:29px;margin:40px 0 17px;letter-spacing:-.7px}.article .meta{font-size:13px;color:#6c7788;border-bottom:1px solid #e1e5ec;padding-bottom:24px;margin-bottom:30px}.article p,.article li{line-height:1.85}.article a{color:#2457eb}.note{padding:22px 26px;background:#edf2ff;border-left:4px solid #2457eb;border-radius:0 9px 9px 0;font-size:16px;margin:25px 0}table{border-collapse:collapse;width:100%;font-size:15px}th,td{padding:15px 12px;text-align:left;border-bottom:1px solid #dfe5ef}th{background:#edf2ff}tr:nth-child(even){background:#fafbfe}@media(max-width:800px){header,main,footer{padding-left:22px;padding-right:22px}header{min-height:110px;flex-wrap:wrap;padding-top:18px;padding-bottom:18px;gap:16px}.brand{font-size:25px}.brand img{width:36px;height:36px}nav{gap:25px;font-size:14px}.intro{padding-top:35px}.intro h1{font-size:66px;letter-spacing:-3.8px}.intro-bottom{display:block}.intro-bottom p{font-size:17px}.textlink{display:inline-block;margin-top:18px}.featured{grid-template-columns:1fr}.featurecopy{padding:30px}.featurecopy h2{font-size:34px}.featureimage{min-height:290px}.topics{margin-bottom:45px}.topics a{padding:16px 12px}.topics strong{font-size:21px}.topics small{font-size:9px}.topics span{font-size:12px}.grid{grid-template-columns:repeat(2,1fr);gap:16px}.card{padding:20px}.card .num{display:none}.sectionhead h2{font-size:29px}.count{display:none}.strip{grid-template-columns:1fr;padding:30px;gap:12px}.strip h2{font-size:35px}footer{display:block}.article h1{font-size:42px;letter-spacing:-1.7px}.categoryintro h1{font-size:48px}.prelaunch{font-size:9px;padding:7px 10px}.prelaunch span{margin-left:15px}}@media(max-width:460px){.grid{grid-template-columns:1fr}.intro h1{font-size:58px}.topics{grid-template-columns:1fr}.topics a{border-right:0;border-bottom:1px solid #dfe4ed;padding:18px 22px}.topics small{font-size:10px}.topics span{font-size:14px}.topics strong{font-size:24px}.article h1{font-size:37px}.prelaunch span{display:none}.featureimage{min-height:245px}th,td{padding:10px 7px;font-size:13px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.article-photo{margin:28px 0}.article-photo img{width:100%;height:auto;display:block;border-radius:12px}.article-photo figcaption{font-size:12px;line-height:1.5;color:#657184;margin-top:9px}
.photo-card{padding:0;overflow:hidden}.card-image{width:100%;aspect-ratio:3/2;position:relative;overflow:hidden;background:#edf2ff}.card-image img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .25s}.photo-card:hover .card-image img{transform:scale(1.035)}.card-image>span{position:absolute;bottom:8px;right:9px;background:#142034dc;color:white;padding:3px 7px;border-radius:3px;font-size:10px}.card-body{padding:24px;display:flex;flex-direction:column;align-items:start;flex:1}.card-body h3{margin:17px 0 12px}.card-body>span{margin-top:auto;color:#2457eb;font-size:14px;font-weight:650}.photo-card:focus-visible{outline:3px solid #2457eb;outline-offset:4px}@media(max-width:800px){.card-body{padding:20px}}
/* Research-led buying guide */
.buying-guide h3{font-size:23px;line-height:1.3;letter-spacing:-.5px;margin:14px 0}.buying-guide [id]{scroll-margin-top:24px}.verdict{background:#142034;color:#fff;padding:30px;border-radius:14px;margin:28px 0}.verdict .eyebrow{color:#d5ee68}.verdict h2{color:#fff;margin:14px 0;font-size:30px}.verdict p{color:#e0e6f0}.verdict a{color:#d5ee68;font-weight:650}.article-toc{display:flex;flex-wrap:wrap;gap:12px 22px;padding:18px 0;border-block:1px solid #dfe5ef;font-size:14px}.evidence-card{padding:25px;background:#f0f4ff;border-radius:12px;margin:24px 0}.source-note,.data-figure figcaption{font-size:12px;line-height:1.65!important;color:#59677a}.table-scroll{overflow-x:auto}.table-scroll table{min-width:530px}.table-scroll caption{text-align:left;font-size:13px;color:#59677a;padding:0 0 12px}.table-scroll tbody th{background:transparent}.data-figure{margin:30px 0;padding:28px;background:#f3f6fb;border:1px solid #dfe5ef;border-radius:14px}.data-figure h3{margin-bottom:25px}.bar-row{margin-bottom:19px}.bar-row>div:first-child{display:flex;justify-content:space-between;gap:15px;font-size:14px;margin-bottom:8px}.bar-track{height:23px;border-left:1px solid #8492a7;background:#e4eaf4}.bar-track>span{height:100%;display:block;background:#2457eb;border-radius:0 3px 3px 0}.bar-track .muted-bar{background:#829be9}.bar-track .caps-bar{background:#142034}.chart-axis{display:flex;justify-content:space-between;color:#657184;font-size:12px;border-top:1px solid #bac6d8;padding-top:8px}.data-figure figcaption{margin-top:20px}.method{border-block:1px solid #dfe5ef;padding:16px 0;font-size:14px}.method summary{cursor:pointer;font-weight:650}.quantity-grid,.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}.quantity-grid>div{padding:12px;text-align:center}.quantity-grid p{font-size:13px;line-height:1.5}.quantity-art{min-height:85px;display:flex;align-items:center;justify-content:center;gap:9px;margin-bottom:15px}.weight-symbol{background:#2457eb;color:white;width:100px;padding:13px;border-radius:10px;font-size:26px;font-weight:700}.quantity-art i{width:21px;height:51px;border:2px solid #2457eb;border-radius:20px;background:linear-gradient(#2457eb 50%,white 50%);transform:rotate(20deg)}.choice-grid section{padding:23px;border:1px solid #dfe5ef;border-radius:12px}.choice-grid p{font-size:15px}.shop-panel{margin:30px 0;padding:28px;border-radius:14px;background:#edf2ff}.shop-links{display:flex;flex-wrap:wrap;gap:12px}.article .shop-links .button{color:white;font-size:14px}.references{padding-left:22px;font-size:14px}.references li{margin-bottom:15px}.buying-guide a:focus-visible,.buying-guide summary:focus-visible{outline:3px solid #2457eb;outline-offset:4px}@media(max-width:540px){.quantity-grid,.choice-grid{grid-template-columns:1fr}.verdict,.data-figure,.shop-panel{padding:22px}.article-toc{gap:13px}.quantity-grid{gap:8px}.quantity-grid>div+div{border-top:1px solid #dfe5ef}.shop-links .button{width:100%;text-align:center}}
/* Evidence summaries and reusable product recommendations */
.evidence-flow{display:grid;gap:12px}.evidence-flow>div{border-left:3px solid #2457eb;padding:15px 18px;background:white;border-radius:0 8px 8px 0}.evidence-flow strong,.evidence-flow span{display:block}.evidence-flow span{font-size:14px;color:#59677a;margin-top:6px}.product-option{padding:20px 0;border-top:1px solid #cdd8ed}.product-option h4{font-size:20px;margin:0 0 8px}.article .product-option .button{color:white}.commerce-disclosure{font-size:13px;line-height:1.65!important;color:#4f6079}.label-demo{background:white;padding:22px;border-radius:10px}.label-demo p{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid #dfe5ef;padding:12px 0;margin:0;font-size:15px}.label-demo strong{white-space:nowrap}.amino-map{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.amino-map span{padding:13px 9px;text-align:center;background:#e0e7f5;border-radius:7px;font-size:13px}.amino-map .bcaa-chip{background:#2457eb;color:white}@media(max-width:540px){.amino-map{grid-template-columns:1fr 1fr}.label-demo{padding:14px}.label-demo p{font-size:13px;gap:12px}.product-option .button{width:100%;text-align:center}}