:root{color-scheme:dark;--night:#102c37;--deep:#0b222c;--paper:#eee9dd;--muted:#a8bdba;--gold:#efd49a;--rule:#ede8d82e;--mint:#8dcfc1}
*{box-sizing:border-box}body{margin:0;background:var(--night);color:var(--paper);font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.2;background-image:radial-gradient(#f6e9c52b .5px,transparent .5px);background-size:6px 6px;mask-image:linear-gradient(130deg,transparent 10%,#000 80%)}
button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button,a,input:focus-visible{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--gold)}button{cursor:pointer}a{color:inherit;text-decoration:none}a:hover{color:var(--gold)}
.shell{position:relative;max-width:1540px;margin:auto;padding:0 clamp(22px,5.2vw,82px)}.topbar{height:96px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--rule)}.brand{display:flex;align-items:center;gap:12px;font-size:11px;letter-spacing:.12em;font-weight:700}.sun-mark{width:17px;height:17px;border:1px solid var(--gold);border-radius:50%;box-shadow:inset 0 0 0 4px var(--night);background:var(--gold);flex:none}.divider{color:var(--muted)}.edition{font:11px Georgia,serif;letter-spacing:.15em;color:var(--muted)}.edition span{color:var(--gold);margin-left:18px}
.intro{display:flex;align-items:center;gap:clamp(48px,9vw,150px);padding:53px 0 44px}.eyebrow{color:var(--gold);font:10px Georgia,serif;letter-spacing:.24em;margin:0 0 21px}.eyebrow::before{content:"";display:inline-block;vertical-align:middle;width:26px;height:1px;background:var(--gold);margin-right:13px}h1{font:clamp(76px,8.4vw,124px)/.9 Georgia,serif;letter-spacing:-.06em;margin:0}h1 span{color:var(--gold)}h2{font-size:16px;letter-spacing:.08em;font-weight:500;margin:0}.intro-copy h2{font-size:21px;letter-spacing:.14em}.intro-copy p{color:var(--muted);font-size:12px;line-height:2.2;margin:16px 0 0}
.workspace{display:grid;grid-template-columns:280px minmax(0,1fr);gap:38px;align-items:start}.parameters{border-top:1px solid var(--gold);padding-top:21px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:24px}.section-heading h2{font-size:14px}.section-heading>span{font:9px Georgia,serif;letter-spacing:.1em;color:var(--muted)}.parameters .section-heading>span{font-size:8px}.field{min-width:0;margin-bottom:16px}.field label{display:flex;justify-content:space-between;gap:5px;font-size:11px;margin-bottom:8px}.field label span{font-family:Georgia,serif;color:var(--gold)}.field input{width:100%;min-width:0;border:1px solid #a8bdba42;border-radius:2px;background:#0b222c85;color:var(--paper);padding:11px 9px;font-size:15px;font-variant-numeric:tabular-nums}.field input:focus{border-color:var(--gold)}.field input:user-invalid{border-color:#f5a38e}.field small,.field-help{display:block;color:var(--muted);font-size:10px;line-height:1.9;margin-top:5px}.field-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field-pair:has(#drift) .field{margin-bottom:0}.field-help{margin:7px 0 19px}.run-button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:9px;padding:15px 13px;background:var(--gold);border:1px solid var(--gold);border-radius:2px;color:var(--deep);font-size:12px;font-weight:700}.run-button:hover{background:#ffe9b7}.secondary-actions{display:flex;justify-content:space-between;gap:12px;margin:14px 0}.secondary-actions button{background:none;border:0;border-bottom:1px solid var(--rule);color:var(--paper);font-size:10px;padding:5px 0}.secondary-actions button:hover{color:var(--gold)}button:disabled{opacity:.5;cursor:wait}
.results{min-width:0}.chart-panel,.distribution-panel{padding:24px 25px 18px;background:radial-gradient(ellipse at 50% 30%,#21485280,#0d2a3570);border:1px solid #efd49a38;box-shadow:0 22px 60px #000c111a}.chart-panel .section-heading{margin-bottom:16px}.chart-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;color:var(--muted);font-size:10px}.toggle{display:flex;align-items:center;gap:5px;white-space:nowrap;color:var(--paper);cursor:pointer}.toggle input{accent-color:var(--gold);width:15px;height:15px}.path-chart{height:320px;margin:16px 0 8px}canvas{display:block;width:100%;height:100%}.legend{display:flex;gap:12px 18px;flex-wrap:wrap;font-size:10px;color:var(--muted)}.legend span{display:inline-flex;align-items:center;gap:7px}.legend span::before{content:"";width:16px;height:0;border-top:1px solid var(--mint)}.legend .legend-mean::before{border-top:2px solid var(--gold)}.legend .legend-theory::before{border-top:2px dashed var(--paper)}.legend .legend-band::before{height:9px;border:0;background:#8dcfc133}.chart-note{font-size:10px;color:var(--muted);line-height:1.8;margin:12px 0 0}.time-inspector{border-top:1px solid var(--rule);margin-top:15px;padding-top:13px}.time-inspector label{display:flex;justify-content:space-between;font-size:10px}.time-inspector output{color:var(--gold);font-variant-numeric:tabular-nums}.time-inspector input{display:block;width:100%;margin:12px 0;accent-color:var(--gold)}.time-inspector p{font-size:10px;color:var(--muted);margin:0;line-height:1.8;font-variant-numeric:tabular-nums}.status{font-size:11px;color:var(--gold);min-height:18px;line-height:1.8;margin:13px 0 19px}.status.error{color:#ffbca8}
.statistics{display:grid;grid-template-columns:1fr 1fr 1.25fr;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);margin-bottom:24px;padding:20px 0;gap:15px}.statistics>div{min-width:0}.statistics span,.statistics small{display:block;color:var(--muted);font-size:10px;line-height:1.8}.statistics strong{display:block;font:28px Georgia,serif;color:var(--gold);margin:9px 0;overflow-wrap:anywhere}.statistics strong.interval{font-size:22px;line-height:32px}.distribution-panel{padding-top:20px}.distribution-panel .section-heading{margin-bottom:12px}.histogram{height:175px}
.model-notes{display:grid;grid-template-columns:280px minmax(0,1fr);gap:38px;border-top:1px solid var(--rule);padding:34px 0 40px;margin-top:42px}.model-notes h2{font-size:17px}.model-notes p:not(.eyebrow):not(.equation){font-size:11px;color:var(--muted);line-height:2;margin:0 0 13px}.model-notes .equation{font:italic 24px Georgia,serif;color:var(--gold);margin:23px 0}.model-notes .formula{color:var(--paper)!important;overflow-wrap:anywhere}footer{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--rule);padding:23px 0 28px;color:var(--muted);font-size:10px;letter-spacing:.06em}
@media(min-width:1400px){.path-chart{height:365px}}
@media(max-width:1050px){.shell{padding:0 28px}.workspace{grid-template-columns:250px minmax(0,1fr);gap:24px}.chart-panel,.distribution-panel{padding-left:17px;padding-right:17px}.model-notes{grid-template-columns:250px minmax(0,1fr);gap:24px}.statistics{gap:10px}.statistics strong{font-size:24px}.statistics strong.interval{font-size:18px}.edition{font-size:9px}}
@media(max-width:760px){.shell{padding:0 22px}.topbar{height:72px}.brand{font-size:10px;gap:9px}.edition{display:none}.intro{padding:36px 0 31px;display:block}.intro-copy{margin-top:25px}.intro-copy h2{font-size:18px}.intro-copy p{margin-top:12px}.workspace{display:flex;flex-direction:column;gap:25px}.parameters,.results{width:100%}.parameters{padding-top:18px}.parameters .section-heading>span{font-size:9px}.field-pair{gap:18px}.field input{font-size:16px}.field-help,.field small{font-size:11px}.secondary-actions button{font-size:11px}.run-button{font-size:13px;padding:16px}.chart-panel,.distribution-panel{padding-left:13px;padding-right:13px}.path-chart{height:290px}.chart-toolbar{font-size:9px}.statistics{grid-template-columns:1fr 1fr}.statistics>div:last-child{grid-column:1/-1;padding-top:13px;border-top:1px solid var(--rule)}.statistics strong.interval{font-size:24px}.model-notes{grid-template-columns:1fr;gap:15px;margin-top:31px;padding:29px 0}.model-notes p:not(.eyebrow):not(.equation){font-size:12px}.histogram{height:185px}footer{font-size:9px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

footer{flex-wrap:wrap}footer .disclaimer{flex:0 0 100%;min-width:0;color:var(--muted);font-size:12px;line-height:1.9;letter-spacing:.03em}footer .disclaimer h2{margin:0 0 6px;color:var(--gold);font-size:12px;font-weight:500;line-height:1.9}footer .disclaimer p{margin:0;overflow-wrap:anywhere}
.model-copy{min-width:0}.model-copy h3{margin:22px 0 10px;font-size:11px;font-weight:500;letter-spacing:.1em;color:var(--muted)}.model-notes .math-display{overflow-x:auto;padding:18px 2px;margin:0 0 18px;color:var(--paper);font-size:19px;line-height:1.6}.model-notes .equation{margin:0 0 23px;padding:22px 16px;border:1px solid var(--rule);background:#ffffff03;color:var(--gold);font:22px/1.6 math,serif}.math-display:focus-visible{outline:1px solid var(--gold);outline-offset:3px}.math-display math{width:max-content;min-width:100%;margin:0;font-family:"Cambria Math","STIX Two Math",math,serif}.model-copy p math{font-family:"Cambria Math","STIX Two Math",math,serif;font-size:1.2em}.moment-formulas{border-top:1px solid var(--rule);margin:22px 0}.moment-formulas h3{margin-top:18px}.moment-formulas .math-display{padding:8px 2px 15px;margin-bottom:0}.model-notes .model-copy p{line-height:2.3!important}
@media(max-width:760px){.model-notes .math-display{font-size:16px}.model-notes .equation{font-size:20px;padding:18px 10px}.model-copy h3{font-size:12px}}
.footer-ad{display:flex;justify-content:center;align-items:flex-start;min-width:0;margin:0 0 28px;overflow:hidden;text-align:center}
.footer-ad-content{flex:none;width:max-content;transform-origin:top center}