:root{--paper:#f8f5ee;--white:#fffdf8;--ink:#151515;--muted:#68645d;--line:#ded8cd;--ember:#bf4812;color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 Inter,system-ui,-apple-system,sans-serif}a{color:inherit;text-underline-offset:.24em}a:focus-visible,button:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--ember);outline-offset:4px}button,select{font:inherit;color:inherit}button{cursor:pointer;border:1px solid var(--line);background:var(--white);border-radius:4px;padding:8px 14px;min-height:44px}button:disabled{opacity:.4;cursor:default}button:hover:not(:disabled){border-color:var(--muted)}select{max-width:100%;border:1px solid var(--line);padding:8px;background:var(--white);border-radius:4px}.skip{position:absolute;left:16px;top:-100px;padding:12px;background:var(--white);z-index:3}.skip:focus{top:8px}.top,main,footer{width:min(1160px,calc(100% - 48px));margin:auto}.top{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:24px 0;border-bottom:1px solid var(--line)}.brand{text-decoration:none;white-space:nowrap;font-family:Georgia,serif;font-size:23px}.top nav{display:flex;flex-wrap:wrap;gap:24px}.top nav a{text-decoration:none;font-size:14px}.intro{padding:70px 0 45px}.eyebrow,.small-label{font-size:12px;letter-spacing:.11em;text-transform:uppercase;color:var(--muted)}h1,h2{font-family:Georgia,'Times New Roman',serif;font-weight:400;letter-spacing:-.025em}h1{font-size:clamp(38px,6vw,76px);line-height:1.08;margin:18px 0 25px}h2{font-size:clamp(28px,3.6vw,44px);line-height:1.18;margin:8px 0 18px}h3{font-size:22px;font-weight:500;line-height:1.3;margin:16px 0}.lead{font-size:21px;max-width:760px;color:var(--muted)}.intro-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:35px}.timing{color:var(--muted);font-size:14px}.timing span{color:var(--ember);padding:0 10px}section{scroll-margin-top:24px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-top:32px;border-top:1px solid var(--line)}#slide-time{color:var(--muted);white-space:nowrap}.player{background:var(--white);border:1px solid var(--line)}.slide-stage{aspect-ratio:16/9;background:var(--paper);display:flex;align-items:center;justify-content:center;min-width:0}.slide-stage img{display:block;width:100%;height:100%;object-fit:contain}.controls{display:flex;align-items:center;gap:12px;padding:14px;flex-wrap:wrap;border-top:1px solid var(--line)}#position{margin:0;min-width:72px;text-align:center;font-variant-numeric:tabular-nums;font-size:14px}.picker{display:flex;align-items:center;gap:8px;min-width:0;flex:1;font-size:14px}.picker select{width:100%;max-width:440px}#fullscreen{margin-left:auto}.caption{font-size:14px;color:var(--muted)}.references{margin-top:18px}.references p{max-width:900px}.references a{color:var(--ember)}summary{cursor:pointer;padding:12px 0;font-size:15px}.practice{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin:20px 0 70px}.practice output{font-variant-numeric:tabular-nums;font-size:20px}.practice span{font-size:13px;color:var(--muted)}.links-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin:15px 0 45px}.feature-link{display:block;text-decoration:none;border-top:1px solid var(--line);padding:25px 0 15px}.feature-link p{color:var(--muted);max-width:440px}.feature-link h3 span{color:var(--ember)}.feature-link:hover h3{text-decoration:underline;text-underline-offset:6px}.flow-band{padding:32px;border-left:3px solid var(--ember);background:var(--white);margin:30px 0 60px}.flow-band h3{font-family:Georgia,serif;font-size:30px}.flow-band p{max-width:920px}.flow-band a,.storage a{color:var(--ember)}.storage{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding-bottom:55px}.storage p{max-width:520px}.storage ol{padding-left:24px;font-size:22px}.storage li{padding:10px 0}.cta{padding:55px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.cta h2{font-size:clamp(35px,4.5vw,58px)}.primary{display:inline-block;background:var(--ink);color:var(--paper);text-decoration:none;padding:13px 24px;border-radius:4px;margin:15px 0}#sources{padding:30px 0}#sources details{max-width:950px}#sources li{margin:8px 0}#sources p{color:var(--muted);font-size:14px}footer{padding:25px 0 45px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:24px;font-size:13px;color:var(--muted)}.player:fullscreen{background:var(--paper);border:0;display:flex;flex-direction:column;justify-content:center}.player:fullscreen .slide-stage{flex:1;min-height:0;aspect-ratio:auto}.player:fullscreen .slide-stage img{max-height:calc(100vh - 90px)}@media(max-width:650px){.top,main,footer{width:calc(100% - 32px)}.top{align-items:flex-start;flex-direction:column;gap:12px}.top nav{gap:20px}.intro{padding-top:36px}.intro-bottom{gap:0}.links-grid,.storage{grid-template-columns:1fr;gap:12px}.controls{gap:8px}.picker{order:2;flex-basis:100%}.picker select{max-width:none}#fullscreen{font-size:14px;padding:8px}.flow-band{padding:22px}.flow-band h3{font-size:25px}.practice{margin-bottom:40px}footer{flex-direction:column;gap:10px}.player:fullscreen .slide-stage img{max-height:calc(100vh - 150px)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.deck-picker{display:flex;align-items:center;gap:12px;margin:0 0 18px}.explore{display:flex;align-items:center;flex-wrap:wrap;gap:20px 32px;padding:38px 0}.explore .primary{margin:0 0 0 auto}.intro{padding:40px 0 30px}.intro h1{font-size:clamp(32px,4.8vw,60px)}.intro>p{color:var(--muted)}footer{justify-content:flex-start;gap:24px}footer span{margin-left:auto}.top>span{color:var(--muted);font-size:14px}#status:empty{display:none}@media(max-width:650px){.explore{align-items:flex-start;flex-direction:column;gap:20px}.explore .primary{margin:0}footer span{margin-left:0}.deck-picker select{min-width:0;max-width:calc(100% - 50px)}}

.local-demos{border-top:1px solid var(--line);padding:18px 0 32px}.local-demos>div{display:flex;flex-wrap:wrap;gap:16px 32px}.storage{border-top:1px solid var(--line);padding-top:30px}@media(max-width:650px){.local-demos>div{flex-direction:column}}

.accent{color:var(--ember)}

.credits{border-top:1px solid var(--line);padding:15px 0 25px}.credits p{font-size:14px;color:var(--muted);max-width:900px}

.slide-stage{position:relative}.closing-links{position:absolute;inset:0;pointer-events:none}.closing-links a{position:absolute;pointer-events:auto;border-radius:2px}.closing-spec{left:6.25%;top:64%;width:54%;height:14%}.closing-math{left:64.8%;top:64%;width:29%;height:14%}.closing-author{left:6.25%;top:85%;width:87.5%;height:8%}.player:fullscreen .slide-stage{flex:0 1 auto;aspect-ratio:16/9;width:min(100%,calc((100vh - 90px)*16/9));align-self:center}