@font-face{font-family:Bricolage;src:url(/fonts/bricolage-grotesque-latin-wght-normal.woff2)format("woff2");font-weight:200 800;font-display:swap}@font-face{font-family:Atkinson;src:url(/fonts/atkinson-hyperlegible-next-latin-wght-normal.woff2)format("woff2");font-weight:200 800;font-display:swap}:root{--paper:#f4f0e7;--ink:#1d2a26;--green:#285b4b;--yellow:#f3b942;--brand-clay:#c65f45;--clay:#a3452f;--line:#c9cec1;--white:#fffdf8;--muted:#526159;--pale:#e3e9dc;color:var(--ink);background:var(--paper);font-synthesis:none;font-family:Atkinson,sans-serif}*{box-sizing:border-box}body{margin:0;font-size:18px;line-height:1.55}h1,h2,h3,h4{letter-spacing:-.035em;font-family:Bricolage,sans-serif;font-weight:650;line-height:1.08}h1{margin:14px 0 20px;font-size:clamp(42px,5vw,72px)}h2{margin:12px 0 20px;font-size:clamp(30px,3.5vw,44px)}h3{margin:12px 0 16px;font-size:25px}h4{margin:15px 0;font-size:21px}p{margin:0 0 18px}a{color:inherit;text-underline-offset:5px}button,input,select,textarea{font:inherit;color:inherit;max-width:100%}button,.button{border:1.5px solid var(--green);background:var(--white);cursor:pointer;border-radius:7px;justify-content:center;align-items:center;gap:18px;min-height:46px;padding:10px 16px;font-weight:650;line-height:1.35;text-decoration:none;display:inline-flex}button:hover,.button:hover{background:var(--pale)}button:disabled{opacity:.55;cursor:default}button[aria-pressed=true],button.primary,.button.primary{background:var(--green);color:var(--white)}button.primary:hover,.button.primary:hover{background:#1a4034}a,button,input,select,textarea,summary{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--clay);outline-offset:4px}input,select,textarea{background:var(--white);border:1px solid var(--muted);border-radius:6px;min-height:46px;padding:10px 12px}input[type=range]{accent-color:var(--green);background:0 0;border:0;width:100%;padding:10px 0}input[type=checkbox],input[type=radio]{min-width:22px;min-height:22px;accent-color:var(--green)}textarea{resize:vertical;width:100%}label{gap:8px;font-size:16px;font-weight:650;display:grid}label:has(input[type=checkbox]){align-items:center;display:flex}select{cursor:pointer}small,.note{color:var(--muted);font-size:15px}svg{max-width:100%;height:auto;display:block}svg text{font-family:Atkinson,sans-serif}figure{margin:0}ul,ol{padding-left:24px}li{margin-bottom:10px}hr{border:0;border-top:1px solid var(--line);margin:30px 0}.skip{z-index:20;background:var(--yellow);padding:12px;position:fixed;top:-150px;left:16px}.skip:focus{top:12px}.site-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:32px;max-width:1360px;margin:auto;padding:24px 48px;display:flex}.brand{align-items:center;gap:12px;font-size:14px;line-height:1.25;text-decoration:none;display:flex}.brand strong{letter-spacing:-.03em;font:650 29px Bricolage,sans-serif;display:block}.site-header nav{gap:30px;font-size:16px;display:flex}.site-header nav a{padding:10px 0;text-decoration:none}.site-header nav a:hover{text-decoration:underline}.header-note{color:var(--muted);font-size:13px}.page{max-width:1360px;margin:auto;padding:48px 48px 80px}.eyebrow{text-transform:uppercase;letter-spacing:.13em;color:var(--green);margin-bottom:14px;font-size:12px;font-weight:700}.hero{grid-template-columns:1.05fr 1fr;align-items:center;gap:54px;padding:24px 0 56px;display:grid}.hero h1{letter-spacing:-.055em;margin:20px 0 28px;font-size:clamp(46px,5.3vw,76px);line-height:1.04}.hero h1 em{color:var(--green);text-decoration:underline;text-decoration-color:var(--yellow);text-underline-offset:7px;font-style:normal;text-decoration-thickness:5px}.hero-copy>p:not(.eyebrow){max-width:520px;font-size:21px}.hero .toolbar{gap:20px;margin-top:30px}.hero .button{padding:16px 20px}.hero-note{color:var(--muted);font-size:13px;line-height:1.5}.hero-scene{background:#e4e9dc;border:1px solid #c5cdbd;border-radius:12px 80px 12px 12px;padding:24px 26px 22px;text-decoration:none;display:block;transform:rotate(1deg)}.hero-scene:hover{border-color:var(--green)}.scene-top{letter-spacing:.12em;text-transform:uppercase;justify-content:space-between;padding-right:24px;font-size:11px;font-weight:700;display:flex}.app-art.large{min-height:300px;padding:18px 0 6px}.app-art text{font-size:13px}.hero-scene-caption{border-top:1px solid #b7c5af;justify-content:space-between;align-items:center;padding-top:17px;display:flex}.hero-scene h2{margin:0 0 7px;font-size:28px}.hero-scene p{margin:0;font-size:15px}.round-arrow{border:1px solid var(--green);border-radius:50%;place-items:center;width:44px;height:44px;font-size:24px;display:grid}.learning-strip{border-block:1px solid var(--line);justify-content:space-between;margin-bottom:68px;padding:21px 0;font-size:15px;display:flex}.learning-strip b{color:var(--clay);margin-right:9px;font-size:12px;font-weight:400}.section-heading{justify-content:space-between;align-items:end;gap:40px;margin-bottom:30px;display:flex}.section-heading h2{margin:0}.section-heading>p{color:var(--muted);margin:0;font-size:15px}.filters{border-top:1px solid var(--line);align-items:end;gap:22px;margin-bottom:28px;padding:22px 0;display:flex}.filters label{min-width:200px;font-size:13px}.filters select{background:0 0;font-size:15px}.filters>span{color:var(--muted);margin-left:auto;padding-bottom:12px;font-size:13px}.app-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:36px 28px;display:grid}.app-link{border-bottom:1px solid var(--line);flex-direction:column;padding-bottom:25px;text-decoration:none;display:flex}.app-link:hover h3{text-underline-offset:5px;text-decoration:underline 1px}.app-image{background:#e5e9dd;border-radius:8px;margin-bottom:23px;position:relative;overflow:hidden}.app-link:nth-child(3n+2) .app-image{background:#eae2d5}.app-link:nth-child(3n) .app-image{background:#dfe8e6}.app-art{width:100%}.app-number{color:var(--muted);font-size:11px;font-weight:650;position:absolute;top:12px;left:14px}.app-link-copy{flex-direction:column;flex:1;display:flex}.app-link-copy>.eyebrow{letter-spacing:.1em;justify-content:space-between;gap:6px;margin:0 0 12px;font-size:10px;display:flex}.app-link-copy>.eyebrow span{letter-spacing:0;text-transform:none;color:var(--muted);font-weight:400}.app-link h3{justify-content:space-between;gap:8px;margin:0 0 12px;font-size:28px;display:flex}.app-link h3>span{color:var(--green);font:400 23px Atkinson,sans-serif}.app-link-copy>p:not(.eyebrow){color:var(--muted);margin:0 0 22px;font-size:16px}.open-link{margin-top:auto;font-size:14px;font-weight:650}.open-link>span{margin-left:10px}.closing-note{border-top:1px solid var(--line);grid-template-columns:1fr 1fr;align-items:center;gap:70px;margin-top:70px;padding:45px 0 0;display:grid}.closing-note h2{margin:0;font-size:42px}.closing-note p{font-size:18px}.text-link{font-size:16px;font-weight:650}footer{border-top:1px solid var(--line);max-width:1360px;color:var(--muted);justify-content:space-between;align-items:start;gap:35px;margin:auto;padding:36px 48px;font-size:13px;display:flex}.footer-brand{gap:12px;display:flex}.footer-brand strong{color:var(--ink)}footer>div:nth-child(2){gap:8px;display:grid}.back-link{font-size:14px}.app-heading{justify-content:space-between;align-items:end;gap:30px;margin:28px 0 25px;display:flex}.app-heading h1{margin:10px 0 15px;font-size:clamp(40px,5vw,64px)}.app-heading .eyebrow{margin:0}.lede{max-width:750px;margin:0;font-size:21px}.app-equipment{border-left:2px solid var(--yellow);max-width:260px;color:var(--muted);padding-left:16px;font-size:14px}.app-equipment span{font-size:12px;font-weight:700}.app-equipment p{margin:7px 0 0}.toolbar{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.workspace-tools{border-block:1px solid var(--line);justify-content:space-between;margin:28px 0;padding:16px 0}.workspace-tools button{min-height:44px;padding:9px 13px;font-size:14px}.method-label{color:var(--green);font-size:13px}.workspace{grid-template-columns:minmax(0,1fr) 280px;align-items:start;gap:30px;display:grid}.scene{background:var(--pale);border:1px solid var(--line);border-radius:12px;min-width:0;position:relative;overflow:hidden}.scene>svg{width:100%;min-height:260px;max-height:600px}.scene>p,.scene>h2,.scene>h3{margin:16px 22px}.controls{background:var(--white);border:1px solid var(--line);border-radius:10px;gap:20px;min-width:0;padding:22px;display:grid}.controls>h2,.controls>h3{margin:0}.controls .toolbar{gap:8px}.controls label+label{margin-top:0}.range{display:block}.range>span{justify-content:space-between;gap:15px;display:flex}.range output{color:var(--green);white-space:nowrap;font-weight:400}.range input{display:block}.readout{background:var(--white);border-top:1px solid var(--line);padding:18px 22px;font-size:19px;font-weight:650}.readout strong{font:650 34px Bricolage,sans-serif}.comparison{grid-template-columns:1fr 1fr;gap:20px;display:grid}.comparison>*{min-width:0}.plot{margin:22px 0}.plot>svg{background:var(--white);border:1px solid var(--line);border-radius:8px;width:100%;max-height:380px}.plot svg text{font-size:12px}.plot figcaption{color:var(--muted);margin-top:10px;font-size:14px}.plot details{margin:12px 0}.evidence{margin:30px 0}.evidence .toolbar{justify-content:space-between}.evidence h3{margin:0}.table-scroll{max-height:480px;margin:18px 0;overflow-x:auto}table{border-collapse:collapse;background:var(--white);width:100%;font-size:15px}th,td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:10px 12px}th{color:var(--green);font-weight:700}tbody tr:last-child td{border-bottom:0}details{border:1px solid var(--line);background:var(--white);border-radius:8px;margin:25px 0;padding:20px 24px}summary{cursor:pointer;align-content:center;min-height:30px;font-weight:650}summary span{color:var(--muted);margin-left:16px;font-size:14px;font-weight:400}details[open]>summary{margin-bottom:23px}.notebook{border-top:3px solid var(--yellow)}.notebook-fields{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin:20px 0;display:grid}.notebook .note{margin:15px 0 0}.teacher-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:35px;display:grid}.teacher-panel h3{font-size:23px}.teacher-panel li,.teacher-panel p{font-size:16px}.teacher-panel .note{border-top:1px solid var(--line);margin:25px 0 0;padding-top:20px}.prose{max-width:900px}.prose h2{margin-top:40px;font-size:32px}.prose p{max-width:760px}.prose .lede{margin-bottom:32px}.presentation .workspace{grid-template-columns:minmax(0,1fr) 300px}.presentation{font-size:21px}.challenge,.challenges{border:1px solid var(--line);background:#e8ecdf;border-radius:10px;margin:24px 0;padding:22px}.challenge h3,.challenges h3{margin-top:0}.challenge button,.challenges button{margin:5px 6px 5px 0}.challenge [role=status],.challenges [role=status]{margin-top:12px}.status,.feedback{border-left:3px solid var(--green);background:#e3e9dc;margin:15px 0;padding:12px 15px}.danger,.error,[role=alert]{color:#8b3020}.device-panel{border:1px solid var(--line);background:var(--white);border-radius:8px;margin:20px 0;padding:18px}.device-panel p{font-size:14px}.pill,.tag,.badge{background:var(--pale);color:var(--green);border-radius:4px;padding:4px 9px;font-size:12px;display:inline-block}.scene button,.scene canvas{max-width:100%}input[type=file]{width:100%;font-size:14px}.app-page section,label,select,.workspace>*,.controls>*{min-width:0}select{width:100%}.range>span{flex-wrap:wrap;gap:4px 12px}.table-scroll:focus-visible{outline:3px solid var(--clay);outline-offset:3px}fieldset{border:1px solid var(--line);border-radius:7px;min-width:0;margin:16px 0;padding:18px}legend{padding:0 6px;font-weight:650}@media (width>=1600px){.page{max-width:1500px}.app-page{max-width:1600px}.workspace{grid-template-columns:minmax(0,1fr) 320px}.scene>svg{max-height:700px}}@media (width<=1050px){.header-note{display:none}.page{padding:38px 30px 65px}.site-header,footer{padding-left:30px;padding-right:30px}.hero{gap:28px}.hero h1{font-size:56px}.hero-copy>p:not(.eyebrow){font-size:19px}.hero-copy br:not(h1 br){display:none}.hero-note{font-size:12px}.app-art.large{min-height:260px}.app-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.filters{flex-wrap:wrap;gap:14px}.filters label{min-width:180px}.filters>span{margin-left:0}.workspace{grid-template-columns:minmax(0,1fr) 245px;gap:20px}.controls{padding:18px}.teacher-grid{gap:22px}.learning-strip{font-size:13px}.learning-strip b{margin-right:5px}}@media (width<=750px){.hero{grid-template-columns:1fr;gap:35px;padding-top:8px}.hero h1{font-size:clamp(48px,9vw,68px)}.hero-copy>p:not(.eyebrow){font-size:20px}.hero-scene{width:100%;max-width:550px;margin:auto;transform:none}.app-art.large{min-height:240px}.learning-strip{grid-template-columns:1fr 1fr;gap:16px;margin-bottom:42px;display:grid}.section-heading{display:block}.section-heading>p{margin-top:16px}.filters label{flex:1;min-width:160px}.filters>span{width:100%}.app-link h3{font-size:25px}.app-link-copy>.eyebrow{font-size:9px}.closing-note{grid-template-columns:1fr;gap:30px}.closing-note h2{font-size:36px}.workspace,.presentation .workspace{grid-template-columns:1fr}.controls{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.controls>*{min-width:0}.controls>h2,.controls>h3,.controls>.toolbar,.controls>.note,.controls>p{grid-column:1/-1}.teacher-grid{grid-template-columns:1fr}.teacher-panel h3{margin-top:25px}.teacher-grid section{border-top:1px solid var(--line);padding-top:10px}.notebook-fields{grid-template-columns:1fr}.app-heading{display:block}.app-equipment{max-width:100%;margin-top:22px}.app-equipment p{margin:4px 0}.workspace-tools .toolbar{width:100%}.workspace-tools{gap:14px}summary span{margin:8px 0 0 17px;display:block}.comparison{gap:14px}footer{flex-wrap:wrap}.scene>svg{min-height:220px}}@media (width<=470px){body{font-size:17px}.site-header{flex-wrap:wrap;gap:16px;padding:17px 20px}.brand{font-size:12px}.brand strong{font-size:25px}.site-header nav{gap:22px;font-size:14px}.page{padding:30px 20px 50px}.hero h1{font-size:49px}.hero-scene{border-radius:8px 55px 8px 8px;padding:20px}.hero-scene h2{font-size:25px}.hero-scene p{font-size:13px}.hero .toolbar{gap:14px}.hero-note{width:100%}.hero-note br{display:none}.app-grid{grid-template-columns:1fr;gap:26px}.app-link{grid-template-columns:110px 1fr;gap:18px;padding-bottom:22px;display:grid}.app-image{align-items:center;min-height:155px;margin:0;display:flex}.app-art{flex-shrink:0;width:180px;max-width:none;transform:translate(-33px)}.hero-scene .app-art{width:100%;max-width:100%;transform:none}.app-number{top:8px;left:9px}.app-link-copy>.eyebrow{font-size:9px;display:block}.app-link-copy>.eyebrow span{margin-top:4px;font-size:10px;display:block}.app-link h3{margin-bottom:9px;font-size:24px}.app-link-copy>p:not(.eyebrow){margin-bottom:12px;font-size:14px}.open-link{font-size:12px}.controls{grid-template-columns:1fr}.controls>*{grid-column:1}.workspace-tools button{padding:9px;font-size:12px}.app-heading h1{font-size:43px}.lede{font-size:19px}.comparison{grid-template-columns:1fr}details{padding:18px 16px}footer{padding:28px 20px}.filters{gap:15px}.filters label{flex:auto;width:100%}.hero-copy>p:not(.eyebrow){font-size:19px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@media print{@page{margin:12mm}.site-header,footer,.skip,.back-link,.workspace-tools,button,input,select,input[type=file],.controls,.teacher-panel,summary{display:none!important}html,body{color:#000;background:#fff;font-size:11pt}.page{max-width:none;padding:0}.app-heading{margin:10px 0 20px}.app-heading h1{font-size:28pt}.lede{font-size:13pt}.workspace,.comparison,.notebook-fields{display:block}.scene{break-inside:avoid;max-width:650px}.scene>svg{min-height:0;max-height:320px}.plot svg{max-height:240px}.table-scroll{max-height:none;overflow:visible}table{font-size:9pt}tr{break-inside:avoid}details{border:0;padding:0;display:block!important}details>:not(summary){content-visibility:visible}.notebook textarea{border:0;min-height:50px;padding:5px;font-size:11pt}.notebook label{margin:16px 0}.notebook{break-before:avoid}.plot details{display:block}.teacher-panel{display:none!important}.challenge,.challenges{break-inside:avoid}.evidence{margin:16px 0}}