:root{--clb-manila:#F9F5EB;--clb-ink:#111315;--clb-blue:#1D4ED8;--clb-yellow:#FACC15;--clb-crimson:#BE123C;--clb-green:#15803D;--clb-rule:#bcb9ad;--clb-serif:'Instrument Serif',Georgia,serif;--clb-sans:'Public Sans',Arial,sans-serif;--clb-mono:'Space Mono',monospace}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--clb-manila);color:var(--clb-ink);font-family:var(--clb-sans);font-size:15px;line-height:1.65}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}button,input,textarea{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}h1,h2,h3,p,blockquote{margin-top:0}h1,h2,h3{font-family:var(--clb-serif);font-weight:400;line-height:.95;letter-spacing:-.035em}h1{font-size:clamp(4.4rem,9vw,9.4rem)}h2{font-size:clamp(3rem,5.4vw,5.7rem)}h3{font-size:2.5rem}em{font-weight:400}p{max-width:70ch}.clb-skip{position:absolute;top:-100px;left:1rem;background:white;padding:1rem;z-index:10}.clb-skip:focus{top:1rem}.clb-header{min-height:93px;border-bottom:1px solid var(--clb-ink);display:flex;align-items:center;gap:2rem;padding:0 4.5%;}.clb-brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:1.2rem;line-height:1}.clb-brand 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45px}.clb-eyebrow,.clb-section-index,.clb-copy-label,.clb-viewer-top,.clb-specimen-meta,.clb-tag,.clb-footer-label,.clb-note-top,.clb-redline>span,.clb-lift span{font:700 10px/1.4 var(--clb-mono);letter-spacing:.1em;text-transform:uppercase}.clb-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--clb-blue);margin-right:8px}.clb-hero-number{float:right;color:#777}.clb-hero h1{margin:66px 0 44px}.clb-hero h1 em{color:var(--clb-blue)}.clb-period{color:var(--clb-blue)}.clb-hero-bottom{display:flex;justify-content:space-between;gap:2rem;align-items:end}.clb-hero-bottom p{font-size:17px;max-width:330px;margin:0}.clb-arrow-link,.clb-text-link{font-size:12px;font-weight:700;text-decoration:none;border-bottom:1px solid var(--clb-blue);padding-bottom:8px;white-space:nowrap}.clb-arrow-link span,.clb-text-link span{color:var(--clb-blue);margin-left:35px;font-size:18px}.clb-hero-note{background:var(--clb-blue);color:var(--clb-manila);padding:36px 12%;position:relative;overflow:hidden}.clb-note-top{display:flex;justify-content:space-between}.clb-crosshair{font-size:35px;margin-top:74px;color:var(--clb-yellow)}.clb-hero-note p{font:400 clamp(3rem,4.5vw,5rem)/.95 var(--clb-serif);margin:30px 0}.clb-note-rule{height:1px;background:#9bb5ff;margin:42px 0 20px}.clb-hero-note small{font:10px/1.9 var(--clb-mono);letter-spacing:.1em}.clb-note-arrow{position:absolute;right:12%;bottom:36px;font-size:50px;color:var(--clb-yellow)}.clb-ticker{background:var(--clb-ink);color:var(--clb-manila);display:flex;justify-content:space-around;gap:1rem;padding:15px 2%;font:700 9px var(--clb-mono);letter-spacing:.12em}.clb-ticker span:nth-child(even){color:var(--clb-yellow)}.clb-experiment{padding:115px 7% 105px}.clb-section-heading{display:flex;justify-content:space-between;gap:3rem;align-items:end;margin-bottom:45px}.clb-section-heading h2{margin:22px 0 0}.clb-section-heading>p{max-width:370px;margin:0;font-size:14px}.clb-viewer{border:1px solid var(--clb-ink);background:#fffdf6}.clb-viewer-top{display:flex;justify-content:space-between;padding:16px 22px;border-bottom:1px solid var(--clb-ink)}.clb-specimen-tabs{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--clb-ink)}.clb-tab{border:0;border-right:1px solid var(--clb-rule);background:transparent;text-align:left;padding:18px 22px;font:700 12px var(--clb-mono)}.clb-tab:last-child{border-right:0}.clb-tab span{display:block;font:12px var(--clb-sans);margin-top:6px}.clb-tab[aria-selected=true]{background:var(--clb-yellow)}.clb-specimen-panel{padding:30px}.clb-specimen-meta{display:flex;align-items:center;gap:18px}.clb-tag{display:inline-block;background:var(--clb-yellow);padding:7px 9px}.clb-example{margin-left:auto;color:#777}.clb-comparison{display:grid;grid-template-columns:1fr 1fr;margin-top:32px}.clb-comparison>div{padding:0 30px 18px 0}.clb-comparison>div+div{border-left:1px solid var(--clb-rule);padding-left:30px}.clb-copy-label{color:var(--clb-blue)}.clb-control-copy,.clb-treatment-copy{display:block;font:400 clamp(1.8rem,3vw,3.2rem)/1.05 var(--clb-serif);margin:18px 0;text-decoration:none}.clb-treatment-copy{color:var(--clb-blue)}.clb-redline{border-top:1px solid var(--clb-rule);border-bottom:1px solid var(--clb-rule);padding:17px 0}.clb-redline p{font-size:15px;margin:10px 0 0}.clb-redline del{color:var(--clb-crimson);background:#ffe6e8}.clb-redline ins{color:var(--clb-green);background:#e4f5e7;text-decoration:none}.clb-specimen-bottom{display:flex;justify-content:space-between;gap:2rem;padding-top:24px}.clb-specimen-bottom p{margin:7px 0 0;max-width:500px}.clb-lift{text-align:right;min-width:190px}.clb-lift strong{display:block;color:var(--clb-green);font:400 3.2rem var(--clb-serif);line-height:1}.clb-lift small{font:10px var(--clb-mono)}.clb-text-link{display:inline-block;margin-top:28px}.clb-calculator{background:#eeeadf;border-top:1px solid var(--clb-ink)}.clb-calculator-grid{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--clb-ink);background:var(--clb-manila)}.clb-calculator-grid>div{padding:35px}.clb-calculator-grid>div+div{border-left:1px solid var(--clb-ink)}.clb-calculator h3{margin:25px 0 15px}.clb-calculator-grid p,.clb-calculator-grid small{font-size:13px}.clb-form{display:grid;gap:15px}.clb-form label{display:grid;gap:6px;font-size:12px;font-weight:700}.clb-form input,.clb-form textarea{width:100%;border:1px solid var(--clb-ink);border-radius:0;background:#fffdf6;color:var(--clb-ink);padding:12px}.clb-form button{border:0;border-radius:0;background:var(--clb-blue);color:white;padding:14px;text-align:left;font-weight:700}.clb-form-pairs{grid-template-columns:1fr 1fr}.clb-form-pairs button{grid-column:1/-1}.clb-result{border-left:3px solid var(--clb-blue);padding:10px 14px;margin:20px 0;font:12px/1.6 var(--clb-mono);background:#e3eafa}.clb-method-band{padding:110px 7%;display:grid;grid-template-columns:1fr 1fr;gap:5rem;border-top:1px solid var(--clb-ink)}.clb-method-band h2{margin-top:20px}.clb-method-band p{font-size:16px}.clb-method-band .clb-arrow-link{display:inline-block;margin-top:15px}.clb-page-intro{padding:95px 7% 75px;border-bottom:1px solid var(--clb-ink);display:flex;justify-content:space-between;gap:2rem;align-items:end}.clb-page-intro h1{font-size:clamp(4rem,8vw,8rem);margin:25px 0}.clb-page-intro h1 em{color:var(--clb-blue)}.clb-intro-copy{font-size:18px;max-width:620px;margin:0}.clb-intro-stamp{font:10px/2 var(--clb-mono);border-top:1px solid var(--clb-ink);padding-top:10px;min-width:190px}.clb-intro-stamp span{color:var(--clb-green)}.clb-essay-section{display:grid;grid-template-columns:25% 1fr;gap:3rem;padding:55px 7%;border-bottom:1px solid var(--clb-rule)}.clb-section-index{color:var(--clb-blue);padding-top:10px}.clb-essay-section h2{font-size:clamp(2.8rem,4vw,4.5rem);margin-bottom:25px}.clb-essay-section p{font-size:16px;max-width:760px}.clb-protocol{margin:0 7%;border-bottom:1px solid var(--clb-ink)}.clb-protocol-head{list-style:none;cursor:pointer;display:grid;grid-template-columns:25% 1fr auto;align-items:center;gap:2rem;padding:33px 0}.clb-protocol-head::-webkit-details-marker{display:none}.clb-protocol-head>span{font:700 10px var(--clb-mono);color:var(--clb-blue)}.clb-protocol-head h2{font-size:clamp(2.3rem,4vw,4rem);margin:0}.clb-protocol-body{display:grid;grid-template-columns:1fr 1fr;gap:3rem;padding:0 0 35px 25%}.clb-protocol-body .clb-redline{align-self:start}.clb-editor-note{margin:55px 7%;padding:24px;border-left:4px solid var(--clb-blue);background:#e3eafa;max-width:900px}.clb-inquiry{padding:90px 7%;background:var(--clb-yellow);display:grid;grid-template-columns:1fr 1fr;gap:6rem}.clb-inquiry h2{margin:20px 0}.clb-form-note{font-size:12px;font-weight:400}.clb-footer{background:var(--clb-ink);color:var(--clb-manila);padding:65px 7% 45px;display:grid;grid-template-columns:2fr 1.4fr 1fr 1.3fr;gap:2rem}.clb-footer-brand{font:3rem var(--clb-serif);text-decoration:none}.clb-footer-brand span{font:10px var(--clb-mono);vertical-align:top}.clb-footer-label{color:#999}.clb-footer p,.clb-footer a:not(.clb-footer-brand){font-size:12px}.clb-footer div> a:not(.clb-footer-brand){display:block;margin:10px 0}.clb-footer p{color:#bcbdb9}.clb-noscript{padding:20px}@media(max-width:900px){.clb-header{flex-wrap:wrap;padding:18px 5%;gap:15px}.clb-nav{order:3;width:100%;overflow-x:auto;padding:8px 0;white-space:nowrap}.clb-header-cta{margin-left:auto}.clb-hero{grid-template-columns:1fr 33%;min-height:500px}.clb-hero-main{padding:45px 7%}.clb-hero h1{margin:60px 0}.clb-hero-number{display:none}.clb-crosshair{margin-top:55px}.clb-ticker span:last-child,.clb-ticker span:nth-last-child(2){display:none}.clb-footer{grid-template-columns:1fr 1fr}.clb-protocol-body{padding-left:0}}@media(max-width:650px){.clb-header-cta{font-size:10px;padding:10px}.clb-hero{display:block}.clb-hero h1{font-size:clamp(4.5rem,18vw,7rem);margin:55px 0 40px}.clb-hero-bottom{display:block}.clb-hero-bottom .clb-arrow-link{display:inline-block;margin-top:25px}.clb-hero-note{padding:28px 7%;min-height:300px}.clb-crosshair{margin-top:30px}.clb-hero-note p{margin:20px 0}.clb-note-rule{margin:20px 0}.clb-ticker{font-size:8px}.clb-ticker span:nth-child(n+4){display:none}.clb-experiment{padding:75px 5%}.clb-section-heading{display:block}.clb-section-heading>p{margin-top:25px}.clb-specimen-tabs{grid-template-columns:1fr 1fr}.clb-tab:nth-child(-n+2){border-bottom:1px solid var(--clb-rule)}.clb-tab:nth-child(2){border-right:0}.clb-specimen-panel{padding:20px}.clb-specimen-meta{flex-wrap:wrap}.clb-example{margin-left:0}.clb-comparison,.clb-calculator-grid,.clb-method-band,.clb-inquiry{grid-template-columns:1fr}.clb-comparison>div+div{border-left:0;border-top:1px solid var(--clb-rule);padding:20px 0}.clb-specimen-bottom{display:block}.clb-lift{text-align:left;margin-top:25px}.clb-calculator-grid>div+div{border-left:0;border-top:1px solid var(--clb-ink)}.clb-method-band{padding:75px 5%;gap:1rem}.clb-page-intro{padding:70px 5%;display:block}.clb-intro-stamp{margin-top:35px}.clb-essay-section{display:block;padding:40px 5%}.clb-section-index{margin-bottom:20px}.clb-protocol{margin:0 5%}.clb-protocol-head{grid-template-columns:1fr auto;gap:10px}.clb-protocol-head h2{grid-column:1;grid-row:2}.clb-protocol-head span:last-child{grid-column:2;grid-row:1/3}.clb-protocol-body{grid-template-columns:1fr;gap:20px}.clb-inquiry{padding:70px 5%;gap:2rem}.clb-footer{grid-template-columns:1fr 1fr;padding:50px 5%;gap:2rem}.clb-footer>div:first-child{grid-column:1/-1}}
.clb-cohort{border-top:1px solid var(--clb-ink)}.clb-cohort h2{margin:20px 0}.clb-cohort-table{width:100%;max-width:800px;border-collapse:collapse;margin:30px 0;text-align:left;font:12px var(--clb-mono)}.clb-cohort-table caption{text-align:left;padding:10px 0;color:var(--clb-blue)}.clb-cohort-table th,.clb-cohort-table td{border-bottom:1px solid var(--clb-rule);padding:12px}.clb-cohort-table thead{background:var(--clb-ink);color:var(--clb-manila)}