:root{--ground: #0b0a09;--ground-2: #100e0c;--surface: #131110;--surface-2: #191614;--line: #2b2521;--line-soft: #1e1a17;--ink: #f4efe6;--ink-2: #aba196;--ink-3: #776e65;--amber: #f0a838;--amber-ink: #ffc470;--amber-wash: rgb(240 168 56 / .1);--sans: "Archivo", ui-sans-serif, system-ui, -apple-system, sans-serif;--mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;--rail-h: 54px;--panel-w: 348px;--stage-h: calc(100svh - var(--rail-h) - 210px);--stage-w: calc(100vw - var(--panel-w) - 96px);--ease: cubic-bezier(.22, .61, .36, 1)}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.62;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}.grain{position:fixed;inset:-50%;z-index:9999;pointer-events:none;mix-blend-mode:overlay;opacity:.34;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E")}a{color:inherit}::selection{background:#f0a83847}.rail{position:fixed;inset:0 0 auto;z-index:60;height:var(--rail-h);display:flex;align-items:center;gap:20px;padding:0 22px;background:#0b0a09b8;backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid var(--line-soft)}.mark{display:inline-flex;align-items:center;gap:9px;text-decoration:none;font-weight:700;font-size:14px;letter-spacing:-.015em}.mark-dot{width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 3px #f0a83824,0 0 16px 2px #f0a83880}.rail-sub{margin:0;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}.rail-links{margin-left:auto;display:flex;gap:22px;font-size:12.5px;letter-spacing:.02em;color:var(--ink-2)}.rail-links a{text-decoration:none;padding-bottom:2px;border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}.rail-links a:hover{color:var(--ink);border-bottom-color:var(--amber)}#app{display:flex;margin-top:var(--rail-h);height:calc(100svh - var(--rail-h));min-height:560px}#viewport{position:relative;flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:28px 26px 20px;background:radial-gradient(66% 55% at 50% 42%,#131010,#0a0908 58%,#080706);overflow:hidden}#viewport:before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(70% 60% at 50% 40%,#000 0%,transparent 78%);opacity:.5}.stage{position:relative;display:flex;flex-direction:column;align-items:center;gap:16px;width:100%;max-height:100%;min-height:0}.gate{position:relative;padding:14px;min-height:0;display:flex;justify-content:center;width:fit-content;max-width:100%;margin-inline:auto}.reg{position:absolute;width:13px;height:13px;border:1px solid var(--line);transition:border-color .6s var(--ease)}.reg.tl{top:0;left:0;border-right:0;border-bottom:0}.reg.tr{top:0;right:0;border-left:0;border-bottom:0}.reg.bl{bottom:0;left:0;border-right:0;border-top:0}.reg.br{bottom:0;right:0;border-left:0;border-top:0}body.is-converging .reg{border-color:#f0a8388c}#canvas{display:block;width:min(var(--stage-h),var(--stage-w));height:auto;aspect-ratio:1 / 1;background:#000;border:1px solid var(--line);box-shadow:0 0 0 1px #0009,0 30px 80px -30px #000000e6,0 0 120px -40px #f0a8382e;cursor:grab}#canvas:active{cursor:grabbing}.readout{display:flex;align-items:stretch;flex-wrap:wrap;border:1px solid var(--line-soft);border-radius:3px;background:#131110b8;backdrop-filter:blur(8px);overflow:hidden;max-width:100%}.readout .cell{display:flex;flex-direction:column;gap:3px;padding:9px 15px;border-right:1px solid var(--line-soft);flex:1 1 auto;min-width:76px}.readout .cell:last-of-type{border-right:0}.readout .k{font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);white-space:nowrap}.readout .v{font-family:var(--mono);font-size:13px;font-weight:500;font-variant-numeric:tabular-nums;color:var(--ink);white-space:nowrap}.readout .cell.live .v{color:var(--amber-ink)}.readout .cell.dim .v{color:var(--ink-2)}.readout .bar{flex:1 0 100%;height:2px;background:var(--line-soft)}.readout .bar>span{display:block;height:100%;background:linear-gradient(90deg,rgb(240 168 56 / .5),var(--amber));transition:width .3s linear}.scrollcue{display:flex;align-items:center;gap:14px;padding:26px 26px 0;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}.scrollcue-line{flex:1;height:1px;background:linear-gradient(90deg,var(--line),transparent)}#panel{width:var(--panel-w);flex:none;overflow-y:auto;overscroll-behavior:contain;padding:22px 20px 60px;background:var(--surface);border-left:1px solid var(--line-soft);scrollbar-width:thin;scrollbar-color:var(--line) transparent}#panel::-webkit-scrollbar{width:9px}#panel::-webkit-scrollbar-thumb{background:var(--line);border-radius:9px;border:3px solid var(--surface)}#panel h1{margin:0 0 3px;font-size:13px;font-weight:600;letter-spacing:.02em}#panel .subtitle{margin:0 0 22px;font-family:var(--mono);font-size:11px;color:var(--ink-3)}fieldset{border:0;border-top:1px solid var(--line-soft);padding:18px 0 22px;margin:0}fieldset:first-of-type{border-top:0;padding-top:0}legend{padding:0;font-size:9.5px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--amber)}label{display:block;margin-bottom:14px}label:last-child{margin-bottom:0}.label-row{display:flex;justify-content:space-between;align-items:baseline;gap:10px;margin-bottom:6px;font-size:12.5px;color:var(--ink-2)}.label-row span:last-child{font-family:var(--mono);font-size:11px;font-variant-numeric:tabular-nums;color:var(--ink)}label.check{display:flex;align-items:center;gap:9px;cursor:pointer;font-size:12.5px;color:var(--ink-2)}label.check input{width:auto;margin:0;accent-color:var(--amber)}select,button{width:100%;font:inherit;font-size:12.5px}select{appearance:none;background:var(--surface-2);color:var(--ink);border:1px solid var(--line);border-radius:3px;padding:8px 30px 8px 10px;cursor:pointer;background-image:linear-gradient(45deg,transparent 50%,var(--ink-3) 50%),linear-gradient(135deg,var(--ink-3) 50%,transparent 50%);background-position:calc(100% - 16px) 55%,calc(100% - 11px) 55%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;transition:border-color .18s var(--ease)}select:hover{border-color:#3b332d}select:focus-visible{outline:0;border-color:var(--amber)}input[type=range]{appearance:none;width:100%;height:18px;margin:0;background:transparent;cursor:pointer}input[type=range]::-webkit-slider-runnable-track{height:2px;background:var(--line);border-radius:2px}input[type=range]::-webkit-slider-thumb{appearance:none;width:12px;height:12px;margin-top:-5px;border-radius:50%;background:var(--ink);border:0;box-shadow:0 0 #f0a83859;transition:background .18s var(--ease),box-shadow .18s var(--ease)}input[type=range]:hover::-webkit-slider-thumb,input[type=range]:focus-visible::-webkit-slider-thumb{background:var(--amber);box-shadow:0 0 0 5px #f0a83829}input[type=range]::-moz-range-track{height:2px;background:var(--line);border-radius:2px}input[type=range]::-moz-range-thumb{width:12px;height:12px;border:0;border-radius:50%;background:var(--ink)}input[type=range]:focus-visible{outline:0}button{padding:8px 12px;margin-bottom:7px;background:transparent;color:var(--ink-2);border:1px solid var(--line);border-radius:3px;cursor:pointer;text-align:left;transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease)}button:hover:not(:disabled){color:var(--ink);border-color:#45392e;background:var(--amber-wash)}button:active:not(:disabled){background:#f0a8380d}button:disabled{opacity:.38;cursor:default}.note{position:relative;margin:9px 0 0;padding-left:11px;border-left:1px solid var(--line-soft);color:var(--ink-3);font-size:11.5px;line-height:1.62}.note code{font-family:var(--mono);font-size:10.5px;color:var(--ink-2)}.note strong{color:var(--ink-2);font-weight:600}.note.foldable{cursor:pointer}.note.foldable.folded{max-height:3.3em;overflow:hidden;mask-image:linear-gradient(#000 45%,transparent 100%)}.note.foldable:after{content:"";position:absolute;left:-1px;top:0;width:1px;height:100%;background:var(--amber);opacity:0;transition:opacity .2s var(--ease)}.note.foldable:hover:after{opacity:.65}.problem{margin:0 0 14px;padding:10px 12px;border:1px solid #5b3a2a;border-left-width:2px;border-radius:3px;background:#1d1411;color:#ffb9a0;font-size:11.5px;white-space:pre-wrap}.essay{max-width:1180px;margin:0 auto;padding:40px 26px 30px}.band{padding:78px 0;border-top:1px solid var(--line-soft)}.band:first-child{border-top:0;padding-top:46px}.eyebrow{margin:0 0 20px;font-size:10px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--amber)}.lede{margin:0 0 44px;font-size:clamp(30px,4.4vw,52px);line-height:1.12;font-weight:600;letter-spacing:-.025em;max-width:20ch}.lede em,h3 em,.essay p em{font-style:italic;color:var(--amber-ink)}.band h3{margin:0 0 18px;font-size:clamp(20px,2.1vw,26px);line-height:1.24;font-weight:600;letter-spacing:-.018em;max-width:22ch}.band h3.wide{max-width:none;margin-bottom:34px}.essay p{color:var(--ink-2);margin:0 0 17px;max-width:70ch}.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(262px,1fr));gap:30px 44px}.split{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:46px 72px}.figures,.scoreboard{list-style:none;margin:30px 0 0;padding:0}.figures li{display:flex;align-items:baseline;gap:16px;padding:12px 0;border-top:1px solid var(--line-soft)}.figures b{font-family:var(--mono);font-size:22px;font-weight:500;font-variant-numeric:tabular-nums;color:var(--ink);min-width:74px}.figures span{font-size:12.5px;color:var(--ink-3)}.scoreboard{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:52px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:3px;overflow:hidden}.scoreboard li{background:var(--ground-2);padding:26px 22px 24px}.scoreboard b{display:block;font-family:var(--mono);font-size:clamp(26px,3.2vw,38px);font-weight:400;font-variant-numeric:tabular-nums;letter-spacing:-.03em;color:var(--amber-ink);margin-bottom:10px}.scoreboard b sup{font-size:.5em;letter-spacing:0}.scoreboard span{font-size:12px;line-height:1.5;color:var(--ink-3)}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(268px,1fr));gap:18px}.card{padding:24px 22px 22px;background:var(--ground-2);border:1px solid var(--line-soft);border-top:1px solid var(--line);border-radius:3px}.card-tag{margin:0 0 12px!important;font-size:10px;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-3)}.card p:last-child{margin-bottom:0;font-size:13.5px}.card b{color:var(--ink);font-weight:600}.band{opacity:0;transform:translateY(18px);transition:opacity .8s var(--ease),transform .8s var(--ease)}.band.seen{opacity:1;transform:none}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.band{opacity:1;transform:none;transition:none}.readout .bar>span{transition:none}}.foot{max-width:1180px;margin:0 auto;padding:30px 26px 60px;border-top:1px solid var(--line-soft);display:flex;justify-content:space-between;align-items:flex-end;gap:30px;font-size:12.5px;color:var(--ink-3)}.foot p{margin:0;max-width:56ch}.foot a{text-decoration:none;white-space:nowrap;color:var(--ink-2);border-bottom:1px solid var(--line);padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease)}.foot a:hover{color:var(--amber-ink);border-bottom-color:var(--amber)}#unsupported{max-width:620px;margin:0 auto;padding:90px 26px;text-align:center}#unsupported h1{font-size:26px;font-weight:600;letter-spacing:-.02em;margin:0 0 14px}#unsupported p{color:var(--ink-2);margin:0 0 16px}#unsupported .detail{font-family:var(--mono);font-size:11px;color:var(--ink-3);white-space:pre-wrap;text-align:left;padding:14px;border:1px solid var(--line-soft);border-radius:3px;background:var(--ground-2)}#unsupported img{width:100%;max-width:420px;margin-top:26px;border:1px solid var(--line);border-radius:3px}@media(max-width:1080px){.scoreboard{grid-template-columns:repeat(2,1fr)}.lede{max-width:18ch}}@media(max-width:860px){:root{--stage-w: calc(100vw - 56px) ;--stage-h: calc(100svh - var(--rail-h) - 250px)}.cols,.split,.cards{grid-template-columns:1fr}#app{flex-direction:column;height:auto}#viewport{padding:22px 16px 18px;min-height:74svh}#canvas{max-height:58svh}#panel{width:100%;border-left:0;border-top:1px solid var(--line-soft);overflow:visible}.rail-sub{display:none}.band{padding:52px 0}.scoreboard{grid-template-columns:1fr}}@media(max-width:560px){.rail-links a:not(:last-child){display:none}.essay,.foot{padding-inline:18px}}.readout .sub{flex:1 0 100%;padding:7px 15px 8px;border-top:1px solid var(--line-soft);font-family:var(--mono);font-size:10px;letter-spacing:.01em;color:var(--ink-3);text-align:center}.hint{margin:0;font-size:10.5px;letter-spacing:.06em;color:var(--ink-3);text-align:center}.hint kbd{font-family:var(--mono);font-size:9.5px;padding:1px 5px;border:1px solid var(--line);border-radius:3px;color:var(--ink-2)}@media(max-width:560px),(hover:none){.hint .kb-hint{display:none}}