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li{border-bottom:1px solid var(--color-border);padding:var(--space-6)0;grid-template-columns:5rem 1fr auto;align-items:baseline;display:grid}.p-winners li span{font-family:var(--font-family-mono);color:var(--color-brass);letter-spacing:var(--tracking-widest)}.p-winners input{color:var(--color-text);width:100%;font-family:var(--font-family-heading);letter-spacing:var(--tracking-wide);background:0 0;border:0;font-size:clamp(2rem,4vw,4rem)}.p-winners input::placeholder{color:var(--color-text-muted)}@supports (color:color-mix(in lab, red, red)){.p-winners input::placeholder{color:color-mix(in srgb,var(--color-text-muted)40%,transparent)}}.hud{z-index:60;align-items:center;gap:var(--space-6);padding:var(--space-3)var(--space-6);border-top:1px solid var(--color-border);background:var(--color-bg);grid-template-columns:1fr auto 1fr;display:grid;position:fixed;bottom:0;left:0;right:0}@supports (color:color-mix(in lab, red, red)){.hud{background:color-mix(in srgb,var(--color-bg)92%,transparent)}}.hud{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);font-family:var(--font-family-mono);font-size:var(--text-xs);letter-spacing:var(--tracking-widest);text-transform:uppercase;color:var(--color-text-muted);font-variant-numeric:tabular-nums}.hud b{color:var(--color-text);font-weight:var(--font-regular)}.hud__clock{justify-self:end}.hud__ticks{gap:4px;display:flex}.hud__ticks i{background:var(--color-border);opacity:.5;width:14px;height:1px}.hud__ticks i.is-past{opacity:1}.hud__ticks i.is-now{background:var(--color-brass);opacity:1;height:2px}.qr-overlay{z-index:80;cursor:pointer;background:var(--color-bg);border:0;position:fixed;inset:0}@supports (color:color-mix(in lab, red, red)){.qr-overlay{background:color-mix(in srgb,var(--color-bg)96%,transparent)}}.qr-overlay{color:var(--color-text);place-items:center;display:grid}.qr-overlay>div{text-align:center;width:min(70vh,80vw)}.qr-overlay p{font-family:var(--font-family-heading);font-size:var(--text-3xl);letter-spacing:var(--tracking-wide);margin:var(--space-6)0 var(--space-2)}.qr-overlay span{font-family:var(--font-family-mono);font-size:var(--text-sm);letter-spacing:var(--tracking-widest);color:var(--color-text-muted)}.keys{right:var(--space-6);bottom:calc(var(--space-12) + var(--space-4));z-index:70;background:var(--color-bg);border:1px solid var(--color-border);width:22rem;padding:var(--space-4)var(--space-6);position:fixed}.keys .spec>div{grid-template-columns:9rem 1fr}@media (max-width:64rem){.p-split,.p-track,.p-clock{grid-template-columns:1fr}.pres .container{padding:0 var(--space-6)}}@media (max-width:48rem){.blowup .b-label{font-size:22px}.turbine .t-balloon-n{font-size:18px}.replay{margin-top:var(--space-4);position:static}.track-x__figure{padding:var(--space-3)}}.startup{border:1px solid var(--color-border);padding:var(--space-4)var(--space-6);margin:0 0 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li:before{content:counter(c,decimal-leading-zero);font-family:var(--font-family-mono);font-size:var(--text-xs);letter-spacing:var(--tracking-widest);color:var(--color-brass)}.constraints strong{font-family:var(--font-family-heading);font-weight:var(--font-regular);letter-spacing:var(--tracking-wide);font-size:var(--text-lg)}.constraints p{color:var(--color-text-muted);font-size:var(--text-sm);flex:1;margin:0;line-height:1.6}.src-link,.res-group a{color:var(--color-text);transition:color var(--duration-base)var(--easing-default);text-decoration:none}.src-link{font-family:var(--font-family-mono);font-size:var(--text-xs);letter-spacing:.04em;border-top:1px solid var(--color-border)}@supports (color:color-mix(in lab, red, red)){.src-link{border-top:1px solid color-mix(in srgb,var(--color-border)40%,transparent)}}.src-link{padding-top:var(--space-2)}.src-link:hover,.res-group a:hover strong{color:var(--color-brass)}.primer{border-top:1px solid 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var(--color-border);flex-wrap:wrap;display:flex}.cad__slider{align-items:center;gap:var(--space-4);font-family:var(--font-family-mono);font-size:var(--text-xs);letter-spacing:var(--tracking-widest);text-transform:uppercase;color:var(--color-text-muted);display:flex}.cad__slider input{accent-color:var(--color-brass);width:min(16rem,50vw)}.cad__btn{position:static}.cad__brass{color:var(--color-brass)}.p-apart__legend{left:max(var(--space-12),calc((100vw - 84rem)/2 + var(--space-12)));z-index:2;border-top:1px solid var(--color-border);pointer-events:none;opacity:0;width:19rem;transition:opacity var(--duration-slow)var(--easing-default);margin:0;padding:0;list-style:none;position:absolute;top:50%;transform:translateY(-40%)}#apart.is-labelled .p-apart__legend{opacity:1}.p-apart__legend li{gap:var(--space-3);padding:var(--space-2)0;border-bottom:1px solid var(--color-border);grid-template-columns:2rem 1fr;display:grid}@supports (color:color-mix(in lab, red, red)){.p-apart__legend li{border-bottom:1px solid color-mix(in srgb,var(--color-border)50%,transparent)}}.p-apart__legend li{opacity:0;transition:opacity var(--duration-slow)var(--easing-default),transform var(--duration-slow)var(--easing-default);transform:translate(-8px)}#apart.is-labelled .p-apart__legend li{opacity:1;transform:none}#apart.is-labelled .p-apart__legend li:nth-child(n){transition-delay:calc(var(--i,0)*40ms)}.p-apart__legend b{font-family:var(--font-family-mono);font-weight:var(--font-regular);font-size:var(--text-xs);color:var(--color-text-muted);border:1px solid var(--color-border);border-radius:50%;place-items:center;width:1.6rem;height:1.6rem;display:grid}.p-apart__legend span{font-family:var(--font-family-heading);letter-spacing:var(--tracking-wide);flex-direction:column;font-size:clamp(.95rem,1.2vw,1.2rem);display:flex}.p-apart__legend small{font-family:var(--font-family-serif);letter-spacing:0;color:var(--color-text-muted);font-size:var(--text-sm)}.p-apart__legend .is-brass span,.p-apart__legend .is-brass b{color:var(--color-brass);border-color:var(--color-brass)}.t3-balloon{border-radius:50%;justify-content:center;width:1.6rem;height:1.6rem;padding:0}.p-apart__caption p{max-width:26ch;font-size:clamp(1rem,1.3vw,1.35rem)}.tscene{width:100%;height:100%;position:relative}.tscene canvas{display:block}.tscene--hero{width:100%;height:min(82dvh,52rem)}.tscene--dissect{height:calc(100dvh - var(--header-h) - var(--space-8))}.tscene--panel{height:min(26rem,56vh)}.tscene--tall{height:min(32rem,64vh)}.tscene--fill{position:absolute;inset:0}.tscene--interactive canvas{cursor:grab}.tscene--interactive canvas:active{cursor:grabbing}.tscene__hint{right:var(--space-3);bottom:var(--space-3);font-family:var(--font-family-mono);font-size:var(--text-xs);letter-spacing:var(--tracking-widest);text-transform:uppercase;color:var(--color-text-muted);pointer-events:none;opacity:.7;position:absolute}@media (pointer:coarse){.tscene__hint:after{content:" · two 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b{color:var(--color-brass)}.cad__note{padding:var(--space-3)var(--space-4);color:var(--color-text-muted);font-size:var(--text-xs);margin:0;line-height:1.6}@media (max-width:48rem){.cad__legend{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr}.cad__legend li:nth-child(3n){border-right:1px solid var(--color-border)}.cad__legend li:nth-child(2n){border-right:0}}.p-3d{flex-direction:column;height:82dvh;display:flex;position:relative}.p-3d .tscene--fill{flex:1;min-height:0;position:relative;inset:auto}.p-3d .steps--p span{font-size:clamp(.85rem,1vw,1.05rem)}.p-3d .steps--p small{font-size:clamp(.75rem,.85vw,.9rem)}.p-3d .cad__legend--p li{grid-template-columns:1.6rem 1fr}.p-3d .cad__legend--p span{font-size:clamp(.8rem,.95vw,1rem)}#apart .t3-balloon{opacity:0}#apart.is-labelled .t3-balloon{opacity:1}.p-winners strong{font-family:var(--font-family-heading);font-weight:var(--font-regular);letter-spacing:var(--tracking-wide);font-size:clamp(2rem,3.6vw,3.6rem)}.p-winners em{font-style:normal;font-family:var(--font-family-mono);font-size:var(--text-sm);letter-spacing:var(--tracking-widest);color:var(--color-text-muted)}.tscene__tags{pointer-events:none;position:absolute;inset:0;overflow:hidden}.tscene__tags>span{visibility:hidden;will-change:transform;position:absolute;top:0;left:0}.track-x__figure:has(.cad){border:0;padding:0}.fold>.fold__sum{cursor:pointer;justify-content:space-between;align-items:flex-end;gap:var(--space-4);padding-bottom:var(--space-4);margin-bottom:var(--space-6);border-bottom:1px solid var(--color-border);list-style:none;display:flex}.fold>.fold__sum::-webkit-details-marker{display:none}.fold:not([open])>.fold__sum{margin-bottom:0}.fold__text{gap:var(--space-2);flex-direction:column;min-width:0;display:flex}.fold__text .entry__k{margin:0}.fold__text .entry__k em{color:var(--color-text-muted);font-style:normal}.fold__title{font-family:var(--font-family-heading);font-size:var(--text-xl);letter-spacing:var(--tracking-wide);line-height:1.25}.fold__mark{font-family:var(--font-family-mono);font-size:var(--text-lg);color:var(--color-text-muted);transition:transform var(--duration-base)var(--easing-default),color var(--duration-base)var(--easing-default);flex-shrink:0}.fold[open]>.fold__sum .fold__mark{color:var(--color-text);transform:rotate(45deg)}.fold>.fold__sum:hover .fold__mark{color:var(--color-text)}.box.fold>.fold__sum{border-bottom-color:var(--color-border)}@supports (color:color-mix(in lab, red, red)){.box.fold>.fold__sum{border-bottom-color:color-mix(in srgb,var(--color-border)50%,transparent)}}.box.fold:not([open])>.fold__sum{border-bottom:0;padding-bottom:0}.lenses.fold>.fold__sum{padding-bottom:var(--space-2);margin-bottom:var(--space-3);border-bottom:0}.track__id{gap:var(--space-3);flex-wrap:wrap}@media (max-width:48rem){.tscene--hero{height:58dvh}.tscene--dissect{height:40dvh}.dissect{padding-top:calc(var(--header-h) + var(--space-2));gap:var(--space-2)}.dissect__bom .overline{display:none}.dissect .spec dd strong{font-size:var(--text-sm)}.timeline{grid-template-columns:1fr}.timeline__time{min-width:0;padding-bottom:0}.timeline__item{padding-top:var(--space-2);border-top:0}.track-x{padding-top:var(--space-16)}.track-x__head{margin-bottom:var(--space-8)}.track-x__problem{font-size:var(--text-base)}.tx-block,.track-x__ways{margin-top:var(--space-8)}.track-x__ways>*{padding:var(--space-6)var(--space-4)}.tx-boxes{margin-top:var(--space-8)}.box{padding:var(--space-4)}.tscene--panel{height:52dvh}.tscene--tall{height:60dvh}.tscene__hint{font-size:10px}.cad__controls{padding:var(--space-3)var(--space-4);gap:var(--space-3)}.cad__slider input{width:100%}.cad__slider{flex:100%}}.p-clock{grid-template-columns:1fr}.p-qr--row{align-items:center;gap:var(--space-6);margin-top:var(--space-8);padding:var(--space-4);display:inline-flex}.p-qr--row svg{width:clamp(8rem,11vw,12rem);height:auto}.p-qr--row figcaption{margin-top:0}.desktop-only{display:contents}@media (max-width:48rem){.desktop-only{display:none}}.p-center{text-align:center;flex-direction:column;align-items:center;width:100%;display:flex}.p-center .p-h2{max-width:none;margin-left:auto;margin-right:auto}.p-center .p-lede{margin:0 auto}.p-center .p-qr{margin-top:var(--space-8)}.p-qr__btn{margin-top:var(--space-6);justify-content:center;display:flex}.p-qr--row figcaption{gap:var(--space-2)}.p-qr--row figcaption>div{margin-top:var(--space-4)}.feedback-row{margin-top:var(--space-12);justify-content:center;align-items:center;gap:var(--space-6);flex-wrap:wrap;display:flex}.feedback-row .cta-meta{margin:0}.hero__specs .dot--morse{background:var(--color-success);opacity:.22;transition:opacity .14s ease-in-out}.hero__specs .dot--morse.is-on{opacity:1}.t3-tag--brass{color:var(--color-brass)}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}