@font-face{font-family:Archivo;src:url(/fonts/archivo-latin-variable.woff2) format("woff2");font-style:normal;font-weight:100 900;font-stretch:62% 125%;font-display:swap}:root{color-scheme:dark;font-family:Archivo,Arial,Helvetica,sans-serif;font-synthesis:none;--paper: #17191c;--surface: #202327;--ink: #f3f3ed;--muted: #a6a9ad;--line: #3d4147;--accent: #ff9966;--accent-ink: #1a1714;--answer: #b5dfae;--body: #bec1c5;--button: #eef0f3;--button-ink: #191c22;--button-hover: #dce0e6;--tick-major: #78848e;--tick-minor: #46505a;--control-line: #4e5862;background:var(--paper);color:var(--ink)}*{box-sizing:border-box}body{margin:0;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin-top:0}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--accent)}button,input,textarea{font:inherit}button,a,input,summary,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}button,input{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:5px}[hidden]{display:none!important}.skip-link{position:fixed;top:-100px;left:16px;background:var(--accent);color:var(--accent-ink);padding:14px;z-index:10}.skip-link:focus{top:10px}.site-header{max-width:608px;margin:auto;padding:16px 24px 8px;display:flex;align-items:center;justify-content:space-between}.site-title{margin:0;line-height:1}.wordmark{text-decoration:none;font-size:23px;font-weight:700;letter-spacing:-.6px;display:flex;align-items:center;gap:10px}.logo{display:flex;align-items:flex-end;gap:4px;width:25px;height:22px}.logo i{display:block;width:4px;height:14px;background:var(--ink)}.logo i:nth-child(2){height:22px;background:var(--accent)}.logo i:last-child{height:10px}.nav-link{display:flex;align-items:center;gap:10px;min-height:44px;font-size:13px;font-weight:600;text-decoration:none;color:var(--muted)}.nav-link span{display:grid;place-items:center;border:1px solid var(--line);width:24px;height:24px;border-radius:50%}.play-column{width:min(100% - 48px,560px);margin:auto}.intro{padding:4px 0 20px}.intro h1{font-size:26px;font-weight:800;letter-spacing:-1px;line-height:1.1;margin:0 0 8px}.intro>p{margin:0;color:var(--muted);font-size:13px;line-height:1.5}.intro strong{color:var(--ink)}.game{padding:0}.edition{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:11px;color:var(--muted);padding:13px 0 16px;border-top:1px solid var(--line)}#round-date{font-variant-numeric:tabular-nums;white-space:nowrap}.game-hud{display:flex;justify-content:space-between;align-items:center;font-size:13px;gap:10px}.game-hud strong{font-variant-numeric:tabular-nums}.game-hud>span:last-child strong{margin-left:7px;font-size:19px;color:var(--accent)}.muted{color:var(--muted)}.progress-dots{display:flex;gap:7px;margin-top:12px}.progress-dots i{height:4px;flex:1;background:var(--line)}.progress-dots .active{background:var(--accent)}.progress-dots .done{background:var(--ink)}.question{display:flex;flex-wrap:wrap;align-items:baseline;padding-top:24px}.category,.eyebrow{font-size:10px;text-transform:uppercase;letter-spacing:1.6px;color:var(--muted);font-weight:700}.question h2{order:-1;flex-basis:100%;font-size:28px;font-weight:600;line-height:1.2;letter-spacing:-.5px;margin:0 0 14px;text-wrap:pretty}.question .category{margin-right:auto;margin-bottom:18px}.unit{color:var(--muted);font-size:12px;margin-bottom:18px}.unit strong{color:var(--ink);font-weight:500}.guess-label{display:block;text-align:center;margin-bottom:25px;font-size:10px;letter-spacing:1.5px;font-weight:600;font-stretch:78%;color:var(--muted)}.number-wrap{max-width:250px;margin:0 auto 5px}.number-wrap input{display:block;width:100%;height:108px;font-size:96px;font-weight:600;font-stretch:125%;line-height:1;letter-spacing:-2px;text-align:center;border:0;border-radius:0;border-bottom:1px solid transparent;background:transparent;color:var(--ink);padding:0 10px;font-variant-numeric:lining-nums tabular-nums;-moz-appearance:textfield;appearance:textfield}.number-wrap input::-webkit-inner-spin-button,.number-wrap input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.number-wrap input:hover{border-bottom-color:var(--line)}.slider-wrap{position:relative;height:96px}.slider-wrap:before{content:"";position:absolute;inset:12px 7px 0;pointer-events:none;background-image:linear-gradient(to right,var(--tick-major) 1px,transparent 1px),linear-gradient(to right,var(--tick-minor) 1px,transparent 1px);background-size:10% 100%,1% 22%;background-repeat:repeat-x;background-position:left bottom;border-right:1px solid var(--tick-major)}input[type=range]{position:relative;width:100%;height:96px;margin:0;appearance:none;background:transparent;cursor:ew-resize;touch-action:pan-y}input[type=range]::-webkit-slider-runnable-track{height:96px;background:transparent}input[type=range]::-moz-range-track{height:96px;background:transparent}input[type=range]::-webkit-slider-thumb{appearance:none;width:14px;height:96px;border:0;border-radius:0;background:var(--ink);clip-path:polygon(0 0,100% 0,64% 12px,64% 100%,36% 100%,36% 12px)}input[type=range]::-moz-range-thumb{width:14px;height:96px;border:0;border-radius:0;background:var(--ink);clip-path:polygon(0 0,100% 0,64% 12px,64% 100%,36% 100%,36% 12px)}.scale-labels{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;font-variant-numeric:tabular-nums;margin-top:8px;padding:0 3px}.step-buttons{display:flex;justify-content:center;gap:10px;margin-top:22px}.step-buttons button{border:1px solid var(--control-line);background:var(--surface);color:var(--ink);min-height:44px;width:64px;border-radius:999px;font-size:14px;font-weight:500;font-variant-numeric:tabular-nums}.step-buttons button:hover{background:var(--surface);border-color:var(--ink)}.step-buttons button:active{background:#353a40}.input-help{font-size:11px;text-align:center;color:var(--muted);margin:10px 0 18px}.primary,.secondary{width:100%;border-radius:999px;min-height:52px;padding:14px 18px;font-size:15px;font-weight:500}.primary{background:var(--button);color:var(--button-ink);border:1px solid var(--button);display:flex;justify-content:center;align-items:center;gap:15px}.primary:hover{background:var(--button-hover);border-color:var(--button-hover)}.primary span{font-size:21px;line-height:1;font-weight:400}.secondary{border:1px solid #686d75;background:transparent;color:var(--ink);margin-top:10px}.secondary:hover{background:var(--surface)}.game-footnote{display:flex;justify-content:space-between;gap:12px;margin-top:18px;font-size:11px;line-height:1.5;color:var(--muted)}.game-footnote a{min-height:28px}.daily-note{font-size:11px;text-align:center;color:var(--muted);padding:23px 0 0;line-height:1.7}.daily-note .note-detail{white-space:nowrap}.editorial{width:min(100% - 48px,600px);margin:60px auto 72px}.editorial>section{padding:28px 0;border-top:1px solid var(--line)}.editorial h2{font-size:23px;font-weight:750;letter-spacing:-.5px;line-height:1.2;margin-bottom:16px}.editorial p,.prose p,.prose li{font-size:14px;line-height:1.8;color:var(--body)}.editorial p:last-child{margin-bottom:0}.editorial strong,.prose strong{color:var(--ink)}.steps{margin:0 0 18px;padding:0;list-style:none}.steps li{display:flex;gap:18px;margin:22px 0}.steps li>span{width:26px;flex-shrink:0;padding-top:3px;color:var(--accent);font-size:12px;font-weight:700;font-variant-numeric:tabular-nums}.steps h3{font-size:15px;margin:0 0 4px}.steps p{margin:0;font-size:13px}.text-link{font-size:13px;font-weight:600}.score-example{display:flex;justify-content:space-around;align-items:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0;margin:22px 0}.score-example small{display:block;font-size:9px;letter-spacing:1px;color:var(--muted)}.score-example strong{display:block;text-align:center;font-size:38px;font-weight:750;margin-top:7px;font-variant-numeric:tabular-nums}.score-example>span{color:var(--muted)}.score-example .example-total strong{color:var(--accent)}details{border-top:1px solid var(--line)}summary{cursor:pointer;list-style:none;padding:19px 28px 19px 0;font-size:14px;font-weight:600;line-height:1.5;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:2px;top:17px;font-weight:400;font-size:20px;color:var(--muted)}details[open]>summary:after{content:"−"}details>p{padding-right:12px}.site-footer{border-top:1px solid var(--line);max-width:904px;margin:auto;padding:28px 0 32px;display:flex;gap:20px;flex-wrap:wrap;justify-content:space-between}.footer-brand{font-size:16px;text-decoration:none;font-weight:750;letter-spacing:-.4px}.site-footer nav{display:flex;gap:20px;flex-wrap:wrap}.site-footer nav a{font-size:12px;text-decoration:none;color:var(--muted)}.site-footer>p{font-size:11px;line-height:1.7;color:var(--muted);width:100%;margin:0}.notice{font-size:12px;line-height:1.65;background:#33281f;color:#f9c798;padding:14px;border:1px solid #7d593b;border-radius:6px;margin:12px 0 20px}.input-error{color:#ffac9b;font-size:12px;text-align:center;margin:6px 0 16px}.reveal-numbers{display:flex;justify-content:space-between;gap:10px;margin:30px 0}.reveal-numbers small{display:block;font-size:10px;letter-spacing:1px;color:var(--muted)}.reveal-numbers strong{display:block;font-size:48px;font-weight:750;margin-top:7px;text-align:center;letter-spacing:-2px;font-variant-numeric:tabular-nums}.answer-number strong{color:var(--answer)}.reveal-numbers>div:last-child strong{color:var(--accent)}.result-ruler{height:48px;position:relative;margin:14px 8px 8px;border-bottom:1px solid var(--tick-major);background:repeating-linear-gradient(to right,var(--tick-minor) 0 1px,transparent 1px 10%) left bottom / 100% 30px no-repeat}.result-ruler .distance{height:10px;position:absolute;bottom:0;background:#f966}.result-ruler i{position:absolute;width:4px;height:56px;top:-8px;transform:translate(-50%)}.guess-marker{background:var(--accent)}.answer-marker{background:var(--answer)}.reveal-label{font-size:21px;font-weight:700;line-height:1.4;margin:27px 0 13px;letter-spacing:-.3px}.explanation{font-size:14px;line-height:1.7;margin-bottom:10px;color:var(--body)}.rounding{font-size:12px;line-height:1.65;color:var(--muted)}.source-row{display:flex;gap:14px;flex-wrap:wrap;justify-content:space-between;font-size:11px;line-height:1.6;margin:17px 0 23px}.source-row a{display:flex;align-items:center;min-height:28px}.result-header{text-align:center;padding-top:14px}.result-header h2{font-size:34px;font-weight:750;margin:14px 0 8px;letter-spacing:-1px}.result-header p{font-size:13px;color:var(--muted)}.total-result{text-align:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0;margin:26px 0 22px}.total-result>span{font-size:10px;letter-spacing:1.7px;color:var(--muted)}.total-result>strong{display:block;color:var(--ink);font-size:100px;font-weight:600;font-stretch:125%;line-height:1.1;letter-spacing:-2px;font-variant-numeric:tabular-nums}.total-result>p{font-size:12px;color:var(--muted);margin:8px 0 0}.error-cells{display:flex;gap:8px}.error-cells>div{text-align:center;flex:1;border:1px solid var(--line);border-radius:6px;padding:12px 0}.error-cells small{font-size:10px;color:var(--muted)}.error-cells strong{display:block;font-size:24px;font-weight:700;margin-top:6px;font-variant-numeric:tabular-nums}.bullseye{color:var(--answer)}.hit-count{text-align:center;font-size:12px;color:var(--muted);margin:20px 0 24px;line-height:1.6}.share-status,.next-daily,.compare-note{font-size:12px;color:var(--muted);text-align:center;line-height:1.65}.share-status{min-height:18px;margin:10px 0}.next-daily{margin:22px 0 7px;font-variant-numeric:tabular-nums}.compare-note{font-size:11px;margin-bottom:28px}.review>h3{font-size:23px;font-weight:700;letter-spacing:-.5px;margin:30px 0 18px}.review summary{display:flex;gap:10px;font-size:13px;line-height:1.65;font-weight:500}.review summary>span{flex:1}.review-prompt{margin-left:6px}.review summary b{font-weight:700;color:var(--accent);flex-shrink:0}.review-guess{font-size:13px;margin-top:6px;color:#b6b8bc;line-height:1.6}.review details{padding:0 2px}.personal-history{margin-top:20px}.personal-history summary{display:flex;justify-content:space-between;gap:10px;font-size:13px}.personal-history summary span{font-size:11px;font-weight:400;color:var(--muted)}.personal-history p,.personal-history li{font-size:12px;line-height:1.75;color:var(--muted)}.personal-history ul{list-style:none;padding:0}.personal-history li{display:flex;justify-content:space-between;padding:10px 0;border-top:1px solid var(--line)}#share-fallback label{font-size:12px}textarea{width:100%;font-size:12px;line-height:1.7;color:var(--ink);background:var(--surface);border:1px solid #686d75;border-radius:6px;margin-top:8px;padding:12px}.prose{width:min(100% - 48px,640px);margin:45px auto 70px}.prose h1{font-size:40px;font-weight:750;line-height:1.15;letter-spacing:-1.2px;margin-bottom:24px}.prose h2{font-size:25px;font-weight:700;line-height:1.3;margin:34px 0 14px;letter-spacing:-.5px}.prose h3{font-size:17px}.prose ul,.prose ol{padding-left:23px}.prose li{padding:3px 0}.prose .breadcrumb{font-size:12px;color:var(--muted);margin-bottom:24px}.prose .eyebrow{font-size:10px;line-height:1.5}.prose .play-link{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;background:var(--accent);color:var(--accent-ink);padding:14px 24px;border-radius:8px;font-size:14px;font-weight:700;margin-top:16px;min-height:48px}#game-status{font-size:14px;line-height:1.7;padding:45px 8px;text-align:center;min-height:360px}#game-status h2{font-size:27px;font-weight:700}#game-status .secondary{max-width:260px}#analytics-toggle{border:0;background:transparent;color:inherit;font:inherit;text-decoration:underline;text-underline-offset:3px;padding:8px 0;min-height:32px}@media(max-width:700px){.site-header{padding:10px 24px}.intro{padding:4px 0 18px}.intro h1{font-size:23px}.intro>p{font-size:12px}.question{padding-top:24px}.question h2{font-size:25px}.unit{margin-bottom:20px}.number-wrap input{font-size:88px;height:100px}.number-wrap{margin-bottom:5px}.editorial{margin-top:45px;margin-bottom:45px}.site-footer{margin:0 24px;gap:18px;padding:26px 0}.site-footer nav{gap:16px}.site-footer nav a{min-height:28px;display:flex;align-items:center}.prose h1{font-size:34px}}@media(max-width:370px){.play-column,.editorial,.prose{width:calc(100% - 36px)}.site-header{padding-inline:18px}.wordmark{font-size:19px;gap:8px}.nav-link{font-size:12px;gap:7px}.nav-link span{width:22px;height:22px}.intro{padding-top:4px;padding-bottom:16px}.intro h1{font-size:22px}.intro>p{font-size:11px}.edition{font-size:10px;padding-bottom:14px}.game-hud{font-size:12px}.question h2{font-size:23px}.unit{margin-bottom:18px}.number-wrap input{font-size:80px;height:92px}.step-buttons{gap:8px;margin-top:20px}.step-buttons button{width:60px}.reveal-numbers small{font-size:8px;letter-spacing:.6px}.reveal-numbers strong{font-size:39px}.score-example small{font-size:8px;letter-spacing:.5px}.score-example strong{font-size:32px}.personal-history summary{font-size:12px}.personal-history summary span{font-size:10px}.site-footer{margin-inline:18px}}@media(max-width:700px)and (max-height:780px){.intro{padding:2px 0 12px}.intro h1{margin-bottom:6px}.edition{padding:10px 0}.question{padding-top:18px}.question h2{margin-bottom:10px}.question .category,.unit{margin-bottom:12px}.step-buttons{margin-top:14px}.input-help{margin:8px 0 14px}}@media(max-width:700px)and (max-height:850px){.reveal-numbers{margin:14px 0}.result-ruler{margin:10px 8px 6px}.reveal-label{margin:14px 0 10px}.source-row{margin:10px 0 12px}}@media(prefers-color-scheme:light){:root{color-scheme:light;--paper: #f2f3f5;--surface: #fff;--ink: #191c22;--muted: #626b77;--line: #cbd0d7;--accent: #9b4c25;--accent-ink: #fff;--answer: #356440;--body: #515b68;--button: #20252d;--button-ink: #fff;--button-hover: #3d4550;--tick-major: #6d7a88;--tick-minor: #bec6d0;--control-line: #b9c1cc}.step-buttons button:active{background:#e1e5eb}.notice{background:#fff1dd;color:#6b421c;border-color:#c5965f}.input-error{color:#a13125}.review-guess{color:var(--body)}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}