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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
@media print{body{background:white;font-size:11pt}.topbar,.sidebar,.scene-tools,.controls,.orientation,.skip,dialog,.footer-bottom button{display:none!important}.layout{display:block}main{padding:0;max-width:none}.intro h1{font-size:36pt}.intro>p{position:static}.lab{break-before:page;margin-bottom:0}.experiment{display:block}.visual-pane{border:0}.scene{height:220px}.quiz{grid-template-columns:1fr 1fr}details>.fold-body{display:block!important}details{break-inside:avoid}.minute,.question{break-inside:avoid}.answer{font-size:10pt;padding:5pt}.feedback{font-size:10pt}footer{break-before:page}.diagnostic-card{color:black;background:#eee}.diagnostic-card p,.diagnostic-card .eyebrow,.case-metrics b,.case-metrics span{color:black}}
/* Theory precedes each visualization. */
.theory-primer,.theory-section{padding:28px;margin:0 0 24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white)}.theory-primer{margin-bottom:52px}.theory-primer h2{font-size:29px}.theory-primer>p{font-size:16px;line-height:1.8}.notation-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;padding:17px 0}.notation-grid b{font-size:15px;color:var(--teal)}.notation-grid p{font-size:14px;line-height:1.75;margin:7px 0}.theory-primer .theory-assumption{border-top:1px solid var(--line);padding-top:15px;font-size:13px;color:var(--muted)}.theory-section>h3{font:600 25px/1.35 var(--display);margin:10px 0 23px}.theory-reasoning{padding-left:24px;margin:0 0 23px}.theory-reasoning li{padding-left:8px;margin-bottom:18px}.theory-reasoning li::marker{color:var(--teal);font-family:var(--mono)}.theory-reasoning strong{font-size:16px}.theory-reasoning p{font-size:16px;line-height:1.8;margin:6px 0 0;max-width:850px}.theory-example{padding:17px 20px;background:#edf2e6;border-left:3px solid var(--teal);border-radius:0 8px 8px 0}.theory-example>b,.observation-task>b{font:12px var(--mono);letter-spacing:.06em;color:var(--teal)}.theory-example p,.observation-task p{margin:8px 0 0;line-height:1.8;font-size:15px}.prediction{background:#faf1df;border-color:#dfcfb1;margin-top:18px}.prediction summary{font-weight:600;font-size:15px;line-height:1.7}.prediction p{margin:0;padding:0 20px 18px;font-size:15px;line-height:1.8}.observation-task{padding:20px 0 0}.observation-task>b{color:var(--orange)}
@media(max-width:800px){.notation-grid{grid-template-columns:1fr;gap:12px}.notation-grid>div+div{border-top:1px solid var(--line);padding-top:12px}}
@media(max-width:640px){.theory-section,.theory-primer{padding:20px}.theory-section>h3{font-size:23px}.theory-primer h2{font-size:26px}.theory-reasoning{padding-left:20px}.theory-reasoning li{padding-left:3px}.theory-example{padding:15px}}
@media print{.theory-section,.theory-primer{background:white;border-radius:0;padding:12pt}.theory-section{break-inside:auto}.theory-reasoning li,.theory-example,.observation-task{break-inside:avoid}.theory-reasoning p{font-size:11pt}.prediction>p{display:block!important}}
.minute .formula-explanation{font:15px/1.8 var(--sans);margin:16px 0 0;padding:16px 18px;background:#fffefa99;border:1px solid #ccd6c6;border-radius:8px;color:var(--ink)}.formula-explanation>b{display:block;color:var(--teal);margin-bottom:5px}