@import "https://fonts.googleapis.com/css2?family=Newsreader:opsz,wght@6..72,400&display=swap";.site-navigation{box-sizing:border-box;color:#173354;background:#f5f1e8;border-bottom:1px solid #17335430;width:100%;font:400 17px/1.5 Newsreader,Georgia,serif}.site-navigation__inner{box-sizing:border-box;justify-content:space-between;align-items:center;gap:24px;max-width:1380px;min-height:90px;margin:0 auto;padding:16px clamp(28px,4vw,64px);display:flex}.site-navigation a{min-height:44px;color:inherit;font:inherit;align-items:center;text-decoration:none;display:inline-flex}.site-navigation .site-navigation__brand{font-size:24px}.site-navigation__links{align-items:center;gap:36px;margin:0;padding:0;list-style:none;display:flex}.site-navigation a:hover,.site-navigation a[aria-current]{color:#ad4b2e;text-underline-offset:6px;text-decoration:underline;text-decoration-thickness:1px}.site-navigation a:focus-visible{outline-offset:4px;outline:2px solid #ad4b2e}@media (width<=760px){.site-navigation__inner{gap:20px;min-height:76px;padding:12px 22px}.site-navigation__links{gap:20px}.site-navigation{font-size:16px}}@media (width<=360px){.site-navigation__inner{gap:16px;padding-inline:16px}.site-navigation__links{gap:16px}}:root{color:#173354;font-synthesis:none;--paper:#f5f1e8;--ink:#173354;--muted:#596878;--rule:#17335430;--accent:#a4452e;--mono:ui-monospace, SFMono-Regular, Consolas, monospace;background:#eee8dc;font-family:Georgia,Times New Roman,serif}*{box-sizing:border-box}body{margin:0;padding:24px}button,input,textarea{font:inherit}button,a,input,textarea,summary{-webkit-tap-highlight-color:transparent}button,a,summary{touch-action:manipulation}button{cursor:pointer;border:1px solid var(--rule);min-height:48px;color:var(--ink);font:14px/1.4 var(--mono);background:0 0;border-radius:3px;padding:12px 21px}button:hover{border-color:var(--ink);background:#17335408}button:disabled{opacity:.4;cursor:default}button.primary{background:var(--ink);border-color:var(--ink);color:var(--paper)}button.primary:hover{background:#284e75}button.primary span{margin-left:20px}a{color:inherit;text-underline-offset:4px}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:4px}h1:focus{outline:none}h1,h2,h3,p{margin:0}h1,h2,h3{text-wrap:pretty;font-weight:400}h1{letter-spacing:-.035em;overflow-wrap:anywhere;font-size:clamp(38px,4.4vw,58px);line-height:1.12}h2{letter-spacing:-.02em;font-size:32px;line-height:1.2}h3{font-size:24px;line-height:1.4}p{line-height:1.65}em{font-weight:400}.site-shell{border:1px solid var(--rule);background:var(--paper);flex-direction:column;max-width:1392px;min-height:calc(100svh - 48px);margin:auto;display:flex}main{flex:1;padding:0 clamp(24px,5vw,76px)}.eyebrow{font:11px/1.7 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);overflow-wrap:anywhere}.small{font:12px/1.7 var(--mono);color:var(--muted)}.lede{color:var(--muted);max-width:520px;font-size:20px;line-height:1.6}.intro{letter-spacing:-.02em;font-size:clamp(32px,3vw,43px);line-height:1.25}.actions{flex-wrap:wrap;align-items:center;gap:12px;margin:30px 0 20px;display:flex}.text-button{color:var(--accent);text-underline-offset:5px;border:0;padding-inline:0;text-decoration:underline}.text-button:hover{color:var(--ink);background:0 0}.site-footer{border-top:1px solid var(--rule);font:10px/1.5 var(--mono);color:var(--muted);justify-content:space-between;gap:20px;margin-top:48px;padding:23px clamp(24px,5vw,76px);display:flex}.landing{grid-template-columns:1fr .95fr;align-items:center;gap:6%;padding:76px 0 72px;display:grid}.hero-title{letter-spacing:-.06em;margin:18px 0 22px;font-size:clamp(64px,7.5vw,104px)}.landing .lede{max-width:385px;margin-top:22px;font-size:18px}.landing .actions{margin:28px 0 15px}.landing .actions a{font:14px/1.4 var(--mono);padding:12px 0}.example{border:1px solid var(--rule);background:#f9f6ef;min-width:0;padding:30px 30px 25px;transform:rotate(2deg);box-shadow:8px 10px #17335406}.example-top{justify-content:space-between;gap:10px;display:flex}.example h2{letter-spacing:-.025em;margin:37px 0 32px;font-size:clamp(26px,2.7vw,38px);line-height:1.2}.example-bounds{grid-template-columns:1fr 25px 1fr;align-items:center;gap:12px;display:grid}.example-bounds>div{border-bottom:1px solid var(--rule);padding-bottom:12px}.example-bounds>div>span{font:10px var(--mono);color:var(--muted);display:block}.example-bounds strong{margin-top:6px;font:38px/1.4 Georgia,serif;display:block}.range-dash{text-align:center;color:var(--muted);font-size:24px}.number-line{background:linear-gradient(var(--rule), var(--rule)) center/100% 1px no-repeat;height:70px;margin:22px 6px 0;position:relative}.number-line:before,.number-line:after{content:"";background:var(--rule);width:1px;height:9px;position:absolute;top:31px}.number-line:after{right:0}.line-range{background:#9daa91;border-radius:5px;width:60%;height:8px;position:absolute;top:31px;left:20%}.line-range:before,.line-range:after{content:"";background:#617755;width:1px;height:20px;position:absolute;top:-6px}.line-range:after{right:0}.line-answer{font:11px var(--mono);padding-top:32px;position:absolute;top:10px;left:49%}.line-answer:before{content:"";background:#173354;border-radius:50%;width:9px;height:9px;position:absolute;top:21px;left:3px}.example-bottom{border-top:1px solid var(--rule);font:11px/1.5 var(--mono);color:var(--muted);justify-content:space-between;gap:12px;padding-top:20px;display:flex}.steps{border-block:1px solid var(--rule);grid-template-columns:repeat(3,1fr);gap:28px;padding:28px 0;display:grid}.how-to-play>h2{margin-bottom:24px}.how-to-play>.scoring{border-top:0;margin-top:0}.sample-games{border-top:1px solid var(--rule);padding-top:32px}.sample-games>.lede{max-width:none;margin-top:12px;font-size:18px}.sample-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:28px;display:grid}.sample-card{border:1px solid var(--rule);flex-direction:column;align-items:flex-start;padding:24px;display:flex}.sample-card p{color:var(--muted);margin:12px 0 24px}.sample-card button{margin-top:auto}.steps>div+div{border-left:1px solid var(--rule);padding-left:28px}.steps p{margin-top:12px;font-size:19px;line-height:1.5}.scoring{border-top:1px solid var(--rule);color:var(--muted);margin:28px 0 0;padding:20px 0}summary{cursor:pointer;min-height:28px;font:12px/1.8 var(--mono);color:var(--ink)}.scoring summary{justify-content:space-between;list-style:none;display:flex}.scoring summary::-webkit-details-marker{display:none}.scoring-content{max-width:720px;padding-top:20px;font-size:16px}.scoring-content p+p{margin-top:16px}.scoring-content ul{padding-left:20px;list-style:none}.scoring-content li{margin:12px 0}.scoring-content strong{font-weight:600}.narrow{max-width:760px;margin:auto;padding:60px 0 10px}.narrow>h1{margin-top:16px}.narrow>.lede{margin-top:20px}.field{min-width:0}.field label{font:12px/1.6 var(--mono);margin-bottom:10px;display:block}.optional{color:var(--muted);float:right;margin-left:8px;font-size:10px}.field input,.field textarea{width:100%;color:var(--ink);background:#fffdf780;border:1px solid #17335446;border-radius:3px;min-height:56px;padding:16px;font-size:18px;line-height:1.4;display:block}.field textarea{resize:vertical}.field input::placeholder,.field textarea::placeholder{color:#74808c;opacity:1}.field [aria-invalid=true]{border-color:#a23827}.field .small{margin-top:12px}.title-field{margin:38px 0 32px}.builder-guide{border:1px solid var(--rule);background:#fffdf780;margin-top:30px;padding:24px}.builder-guide h2{font-size:26px}.builder-guide p{margin-top:14px}.builder-guide code{font:.85em var(--mono)}.prompt-actions{flex-wrap:wrap;align-items:center;gap:16px;margin-top:20px;display:flex}.prompt-actions p{flex:240px;margin:0}.builder-guide details,.builder-guide .field{margin-top:16px}.builder-guide textarea{font:12px/1.7 var(--mono)}.builder-question{border:0;border-top:1px solid var(--rule);margin:0;padding:30px 0 28px;position:relative}.builder-question legend{font:11px var(--mono);color:var(--muted);text-transform:uppercase;letter-spacing:.08em;padding:0 16px 0 0}.builder-question .field+.field{max-width:350px;margin-top:20px}.reorder{background:var(--paper);gap:5px;padding-left:10px;display:flex;position:absolute;top:-23px;right:0}.reorder button{min-width:44px;min-height:44px;padding:7px;font-size:18px}.error{color:#a23827;font:12px/1.6 var(--mono);margin-top:9px}.game-facts{border-block:1px solid var(--rule);font:12px var(--mono);color:var(--muted);flex-wrap:wrap;gap:12px 24px;margin-top:36px;padding-block:22px;display:flex}.ready,.challenge,.empty-state{padding-block:90px 30px}.ready .scoring,.challenge .scoring{margin-top:60px}.play-meta{justify-content:space-between;align-items:baseline;gap:20px;display:flex}.play-meta .small{flex-shrink:0}.progress{gap:8px;margin:20px 0 46px;display:flex}.progress span{background:#1733541a;flex:1;height:3px}.progress .done{background:#8c9c83}.progress .current{background:var(--ink)}h1.question-heading{letter-spacing:-.025em;font-size:clamp(32px,3.7vw,48px);line-height:1.2}.bound-hint{color:var(--muted);margin:22px 0 32px;font-size:18px}.bounds{grid-template-columns:minmax(0,1fr) 32px minmax(0,1fr);align-items:start;gap:14px;display:grid}.bounds>.range-dash{padding-top:43px}.bounds input{font-variant-numeric:tabular-nums;letter-spacing:-.025em;min-height:85px;padding:16px;font-size:clamp(23px,3vw,36px)}.bounds .field input::placeholder{font-size:21px}.play-actions{border-top:1px solid var(--rule);justify-content:space-between;gap:16px;margin-top:34px;padding-top:24px;display:flex}.save-note{margin-top:22px}.submit-area{margin-top:30px}.submit-area>.small{margin-top:15px}.playing .scoring{margin-top:40px}.challenge-note{font:12px/1.7 var(--mono);background:#17335408;margin:-20px 0 30px;padding:14px}.circles{gap:15px;margin:26px 0 18px;font-size:33px;line-height:1.5;display:flex}.spoiler{border-top:1px solid var(--rule);margin-top:30px;padding-top:20px}.spoiler p{color:var(--muted);margin:15px 0}.results{padding:60px 0 10px}.result-intro{grid-template-columns:minmax(0,1fr) minmax(180px,28%);align-items:center;gap:36px;display:grid}.result-intro h1{margin-top:16px}.score-box{border-left:1px solid var(--rule);flex-direction:column;padding:20px 0 20px 36px;display:flex}.score-box strong{overflow-wrap:anywhere;letter-spacing:-.04em;margin:10px 0;font-size:clamp(50px,6vw,82px);font-weight:400;line-height:1.1}.score-box>span:last-child{font:12px var(--mono);color:var(--muted)}.counts{font:12px/1.8 var(--mono);color:var(--muted)}.counts>span{margin:0 9px}.result-actions{border-bottom:1px solid var(--rule);padding-bottom:32px}.section-heading{justify-content:space-between;align-items:baseline;gap:24px;margin:38px 0 22px;display:flex}.breakdown{grid-template-columns:1fr 1fr;gap:20px;display:grid}.answer-card{border:1px solid var(--rule);min-width:0;padding:25px}.answer-title{justify-content:space-between;align-items:baseline;gap:15px;display:flex}.status{font:11px var(--mono);text-transform:capitalize}.answer-card h3{overflow-wrap:anywhere;margin:20px 0 24px;font-size:22px}.answer-card dl{font:12px/1.6 var(--mono);margin:0}.answer-card dl>div{grid-template-columns:115px minmax(0,1fr);gap:15px;margin-top:9px;display:grid}.answer-card dt{color:var(--muted)}.answer-card dd{text-align:right;overflow-wrap:anywhere;margin:0}.comparison{border-bottom:1px solid var(--rule);padding-bottom:32px}.score-duo{background:#17335406;grid-template-columns:1fr 1fr;gap:30px;margin-bottom:24px;padding:24px;display:grid}.score-duo>div{justify-content:space-between;align-items:center;gap:15px;min-width:0;display:flex}.score-duo>div+div{border-left:1px solid var(--rule);padding-left:30px}.score-duo span{font:12px var(--mono);overflow-wrap:anywhere}.score-duo strong{overflow-wrap:anywhere;min-width:0;font-size:36px;font-weight:400}.comparison-head,.comparison-row{border-bottom:1px solid var(--rule);font:12px/1.7 var(--mono);grid-template-columns:85px minmax(0,1fr) minmax(0,1fr) minmax(0,.8fr);gap:20px;padding:18px 0;display:grid}.comparison-head{color:var(--muted);font-size:11px}.comparison-row>span{overflow-wrap:anywhere;min-width:0}.mobile-label{display:none}.notice,.warning{font:12px/1.7 var(--mono);border:1px solid var(--rule);max-width:760px;margin:20px auto 0;padding:16px}.notice{z-index:5;background:#e7ebdf;width:max-content;max-width:calc(100% - 48px);position:fixed;bottom:24px;left:50%;transform:translate(-50%);box-shadow:0 4px 20px #17335412}.warning{background:#f2e5ce}.manual-share{max-width:760px;margin:20px auto}.empty-state>p:not(.eyebrow){margin:25px 0}.skip-link{background:var(--paper);z-index:2;padding:12px;position:absolute;top:0;left:30px;transform:translateY(-120%)}.skip-link:focus{transform:translateY(0)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width>=1500px){.landing{padding-block:95px}.example{padding:40px}}@media (width<=900px){.landing{gap:5%;padding-block:60px}.landing .actions{flex-direction:column;align-items:stretch}.landing .actions button{width:100%}.example{padding:24px 20px}.example-top .small{display:none}.example h2{margin-top:30px}.example-bottom{font-size:10px}.steps{gap:18px}.steps>div+div{padding-left:18px}.steps p{font-size:17px}.steps .eyebrow{font-size:9px}}@media (width<=650px){.sample-grid{grid-template-columns:1fr}.landing .actions a{font-size:11px}body{padding:0}.site-shell{border:0;min-height:100svh}main{padding-inline:24px}.landing{grid-template-columns:1fr;gap:40px;padding:42px 0 34px}.hero-title{margin:15px 0 20px;font-size:72px}.intro{font-size:34px}.landing .lede{max-width:360px;font-size:18px}.landing .actions{flex-direction:row;gap:10px}.landing .actions button{white-space:nowrap;flex:1;width:auto;padding-inline:12px;font-size:11px}.landing .actions button span{margin-left:8px}.example{margin:0 7px 10px;padding:25px;transform:rotate(1.5deg)}.example h2{margin:30px 0;font-size:31px}.example-top .small{display:block}.example-bottom{font-size:10px}.steps{grid-template-columns:1fr;gap:0;padding:5px 0}.steps>div{grid-template-columns:1fr 1.15fr;align-items:baseline;gap:12px;padding:20px 0;display:grid}.steps>div+div{border-left:0;border-top:1px solid var(--rule);padding-left:0}.steps .eyebrow{font-size:9px;line-height:1.8}.steps p{margin:0;font-size:16px}.site-footer{margin-top:26px;font-size:9px}.narrow,.results{padding-top:38px}.narrow>h1{margin-top:18px}.narrow>.lede{font-size:18px}.bounds{grid-template-columns:minmax(0,1fr) 14px minmax(0,1fr);gap:10px}.bounds input{min-height:76px;padding:12px;font-size:26px}.bounds .field input::placeholder{font-size:16px}.bounds>.range-dash{padding-top:42px;font-size:18px}.play-meta{gap:14px}.play-meta .eyebrow{font-size:9px}.play-meta .small{font-size:10px}.progress{margin-bottom:36px}.bound-hint{margin:20px 0 28px;font-size:17px}.play-actions button{padding-inline:13px;font-size:11px}.play-actions{gap:12px}.scoring-content{font-size:15px}.scoring-content ul{padding-left:0}.optional{font-size:9px}.field label{font-size:11px}.builder-question{padding-top:30px}.builder-question .field+.field{max-width:none}.builder .actions{align-items:stretch}.builder .actions button{flex:1;font-size:11px}.game-facts{gap:14px;font-size:10px}.challenge h1{font-size:39px}.challenge .lede br{display:none}.circles{gap:12px;font-size:29px}.result-intro{grid-template-columns:1fr;gap:26px}.score-box{border-left:0;border-block:1px solid var(--rule);grid-template-columns:1fr 1fr;align-items:center;gap:10px;padding:22px 0;display:grid}.score-box strong{text-align:right;grid-area:1/2/3;margin:0;font-size:64px}.score-box>span:last-child{grid-area:2/1}.counts{font-size:10px}.counts>span{margin:0 3px}.result-actions{gap:10px}.result-actions>button{white-space:nowrap;flex:1;padding-inline:12px;font-size:11px}.result-actions>.text-button{text-align:left;flex-basis:100%}.breakdown{grid-template-columns:1fr;gap:14px}.answer-card{padding:22px}.answer-card h3{font-size:21px}.section-heading{align-items:end;gap:12px}.section-heading h2{font-size:28px}.section-heading .small{text-align:right;font-size:10px}.score-duo{gap:18px;padding:18px}.score-duo>div{flex-direction:column;align-items:start;gap:8px}.score-duo>div+div{padding-left:18px}.score-duo strong{font-size:32px}.comparison-head{display:none}.comparison-row{grid-template-columns:1fr;gap:12px;padding:20px 0}.comparison-row>span:not(:first-child){grid-template-columns:100px minmax(0,1fr);gap:14px;display:grid}.mobile-label{color:var(--muted);display:inline}.comparison-row>span:first-child{padding-bottom:6px}.comparison-row>span:not(:first-child)>.mobile-label{display:block}.comparison-row>span:not(:first-child)>span:last-child{text-align:right}.ready,.challenge{padding-top:55px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important}}
