.public-site{background:#f6f3eb;color:#233a2d;min-height:100vh;font-size:15px;line-height:1.65}.site-header,.site-main,.site-footer{width:min(1180px,calc(100% - 56px));margin-inline:auto}.site-header{min-height:92px;display:flex;align-items:center;gap:32px;border-bottom:1px solid #dce0d4}.site-brand{display:flex;align-items:center;gap:11px;font:30px Georgia,serif;text-decoration:none;color:inherit}.site-header>nav{display:flex;gap:28px;margin-left:auto}.public-site a{color:inherit;text-underline-offset:4px}.site-header>nav a{font-size:13px;text-decoration:none}.site-header a:hover,.site-more:hover{text-decoration:underline}.site-language{position:relative;font-size:12px;z-index:5}.site-language summary{cursor:pointer;padding:8px 12px;border:1px solid #dce0d4;border-radius:10px;white-space:nowrap}.site-language nav{position:absolute;right:0;top:48px;min-width:190px;padding:10px;background:#fffdf7;border:1px solid #dce0d4;border-radius:12px;box-shadow:0 10px 30px #233a2d15;display:grid;gap:3px}.site-language nav a{padding:5px 8px;text-decoration:none}.site-language nav a[aria-current]{background:#e5eadc;border-radius:6px}.site-main{padding:38px 0 66px}.site-hero{display:grid;grid-template-columns:1.25fr 1fr;gap:74px;align-items:center;padding:24px 0 50px}.site-kicker{font-size:10px;letter-spacing:1.8px;text-transform:uppercase;color:#6a7868;display:block}.public-site h1{font:clamp(35px,4.8vw,64px)/1.08 Georgia,serif;letter-spacing:-1.8px;margin:20px 0 23px;overflow-wrap:anywhere}.site-lead{font-size:17px;line-height:1.7;color:#626d60;max-width:780px}.site-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 12px}.public-site a.btn-primary{color:#fffdf7}.public-site a.btn{text-decoration:none}.site-small,.site-callout small{font-size:12px;color:#737d6e}.site-stat-row{display:flex;gap:74px;padding:20px 0 30px;border-bottom:1px solid #dce0d4}.site-stat-row p{display:flex;flex-direction:column;font-size:12px;color:#737d6e}.site-stat-row strong{font:33px Georgia,serif;color:#244d3b}.site-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.site-card{border:1px solid #dce0d4;border-radius:18px;padding:24px;background:#fffdf780;display:flex;flex-direction:column;min-width:0}.site-card h2{font:26px/1.18 Georgia,serif;margin:12px 0 14px;overflow-wrap:anywhere}.site-card h2 a{text-decoration:none}.site-card h2 a:hover{text-decoration:underline}.site-card p{font-size:13px;color:#687364;margin:0 0 20px}.site-card-meta{margin-top:auto;font-size:11px;color:#6a7868}.site-section{margin-top:52px}.site-section-title{font:34px Georgia,serif;margin-bottom:22px}.site-section>p{color:#687364;margin-bottom:22px}.site-heading{max-width:860px;margin:15px 0 36px}.site-heading h1{font-size:clamp(36px,4.4vw,56px)}.site-more{display:inline-block;font-size:13px;margin-top:20px}.site-guide-header{max-width:880px;margin:20px 0 36px}.site-guide-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:64px;align-items:start}.site-prose{max-width:790px}.site-prose h2,.site-section>h2{font:30px/1.2 Georgia,serif;letter-spacing:-.5px;margin:32px 0 18px}.site-prose h3{font-size:15px;line-height:1.5;margin:22px 0 10px}.site-prose p{margin:0 0 18px;color:#626d60}.site-ideas{padding-left:22px}.site-ideas li{padding-left:6px}.site-notation{padding:22px;background:#e8ecdf;border-radius:14px;font:14px/2 ui-monospace,SFMono-Regular,monospace;overflow-wrap:anywhere}.site-figure{margin:0 auto;max-width:440px;width:100%;padding:16px;border:1px solid #dce0d4;border-radius:20px;background:#fffdf780}.site-figure .board-wrap{width:100%}.site-figure .board{box-shadow:none}.site-figure figcaption{font-size:12px;text-align:center;color:#737d6e;margin-top:12px}.site-callout{padding:24px;border:1px solid #dce0d4;border-radius:18px;margin:26px 0;background:#e9ede2}.site-callout p{font:23px/1.3 Georgia,serif;margin:0 0 20px}.site-callout small{display:block;margin-top:14px;line-height:1.6}.site-breadcrumbs{display:flex;gap:10px;flex-wrap:wrap;font-size:11px;color:#737d6e;margin-bottom:22px}.site-sources{padding-left:22px;color:#626d60;font-size:13px}.site-sources li{margin:14px 0}.site-source-details{margin-top:35px;padding:20px;border:1px solid #dce0d4;border-radius:12px}.site-source-details summary{cursor:pointer;font-size:13px}.site-footer{display:flex;flex-wrap:wrap;align-items:center;gap:28px;border-top:1px solid #dce0d4;padding:26px 0 36px;font-size:11px;color:#737d6e}.site-footer p:first-child{margin-right:auto}.site-guide-layout aside{min-width:0}@media(max-width:900px){.site-header{gap:20px;flex-wrap:wrap;padding:18px 0}.site-header>nav{order:3;width:100%;justify-content:flex-start;gap:25px}.site-language{margin-left:auto}.site-hero{gap:30px}.site-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.site-guide-layout{gap:30px}.site-stat-row{gap:40px}.site-hero .site-figure{padding:10px}.site-guide-header h1{font-size:44px}}@media(max-width:620px){.site-header{gap:12px}.site-brand{font-size:22px;gap:8px}.site-brand img{width:32px;height:32px}.site-header,.site-main,.site-footer{width:calc(100% - 36px)}.site-main{padding-top:25px}.site-header>nav{gap:19px;flex-wrap:wrap}.site-header>nav a{font-size:12px}.site-hero,.site-guide-layout{grid-template-columns:minmax(0,1fr);gap:30px}.site-hero{padding-top:0}.site-hero .site-figure{max-width:350px}.public-site h1{font-size:42px;letter-spacing:-1.2px}.site-lead{font-size:15px}.site-cards{grid-template-columns:minmax(0,1fr)}.site-stat-row{gap:26px;justify-content:space-between}.site-stat-row p{font-size:10px;max-width:95px}.site-stat-row strong{font-size:28px}.site-card{padding:21px}.site-section{margin-top:36px}.site-guide-layout aside{grid-row:1}.site-guide-layout .site-callout{margin-bottom:0}.site-footer{gap:16px}.site-footer p:last-child{width:100%}.site-guide-header h1{font-size:39px}.site-header>nav{line-height:1.3}}
.site-defining{font-size:13px;color:#626d60;margin-top:20px}.site-defining code{font-size:12px;line-height:1.8;overflow-wrap:anywhere}

/* Public guide controls enhance the existing static position without an app download. */
.public-site [hidden]{display:none!important}
.site-replay{padding:16px;background:#fffdf7;border:1px solid #dce0d4;border-radius:20px;scroll-margin-top:18px;min-width:0}
.guide-position{display:grid;grid-template-columns:12px minmax(0,1fr);gap:9px;align-items:stretch}
.guide-rail-host .evaluation-rail{height:100%;width:12px}
.guide-board-host,.guide-board-host .board-wrap{width:100%;max-width:none;min-width:0}
.guide-board-host .board-wrap{position:relative;aspect-ratio:1}
.guide-board-host .board{box-shadow:none}
.guide-score{display:flex;justify-content:space-between;gap:10px;font-size:10px;color:#697663;margin:9px 0 0;font-variant-numeric:tabular-nums}
.guide-line-title{font:18px/1.35 Georgia,serif;margin:15px 0;overflow-wrap:anywhere}
.guide-line-picker{display:grid;gap:5px;font-size:10px;color:#687364;margin:12px 0}
.guide-line-picker select{box-sizing:border-box;width:100%;max-width:100%;min-width:0;border:1px solid #dce0d4;border-radius:9px;padding:10px 8px;background:#f6f3eb;font-size:12px;color:#233a2d;text-overflow:ellipsis}
.guide-modes{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;background:#e9ede2;border-radius:10px;margin-bottom:10px}
.guide-modes button,.guide-controls button,.guide-moves button{border:0;background:transparent;color:#244d3b;border-radius:7px;cursor:pointer;font-family:inherit}
.guide-modes button{padding:9px 5px;font-size:12px}
.guide-modes button[aria-pressed=true]{background:#fffdf7;box-shadow:0 1px 4px #233a2d12;font-weight:650}
.guide-controls{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:5px;margin:8px 0}
.guide-controls button{height:44px;border:1px solid #dce0d4;background:#f6f3eb;font-size:18px}
.guide-controls button:disabled{opacity:.35;cursor:default}
.guide-moves{display:flex;flex-wrap:wrap;gap:3px;max-height:94px;overflow:auto;padding:6px 0;border-bottom:1px solid #e3e6dd}
.guide-moves button{padding:5px 7px;font:12px/1.4 ui-monospace,SFMono-Regular,monospace;white-space:nowrap}
.guide-moves button span{color:#87907e;font-size:10px}
.guide-moves button[aria-current]{background:#244d3b;color:#fffdf7}
.guide-feedback{font-size:12px;min-height:36px;line-height:1.5;color:#244d3b;margin:14px 0 9px}
.guide-note{font-size:12px;color:#626d60;line-height:1.65;max-height:100px;overflow:auto;margin:8px 0}
.guide-help{font-size:10px;line-height:1.6;color:#737d6e;margin:12px 0 15px}
.guide-learn{width:100%;box-sizing:border-box;font-size:12px;text-align:center;justify-content:center}
.guide-promotion fieldset{border:1px solid #dce0d4;border-radius:10px;margin:10px 0;padding:10px;display:flex;gap:4px;flex-wrap:wrap}
.guide-promotion legend{font-size:12px}.guide-promotion button{border:1px solid #dce0d4;border-radius:7px;background:#e9ede2;cursor:pointer;min-width:42px;min-height:42px;font-size:11px}.guide-promotion .piece{position:static;width:38px;height:38px;transform:none}
.site-pitfalls{padding-left:22px;color:#626d60}.site-pitfalls li{padding:0 0 14px 5px}
.site-variants{padding-left:20px}.site-variants li{margin-bottom:24px}.site-variants .site-notation{font-size:11px;padding:14px;margin:10px 0 0}.site-variants .site-more{margin-top:5px}
.site-hub-links{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}.site-hub-links a{border:1px solid #dce0d4;border-radius:10px;padding:9px 14px;font-size:12px;text-decoration:none;background:#e9ede2}
.site-table-wrap{overflow:auto;border:1px solid #dce0d4;border-radius:14px;max-width:100%}
.site-compare{width:100%;border-collapse:collapse;min-width:610px;background:#fffdf780;font-size:13px;line-height:1.6}.site-compare th,.site-compare td{padding:18px 20px;border-bottom:1px solid #dce0d4;vertical-align:top;text-align:left}.site-compare thead{background:#e9ede2}.site-compare tbody th{width:21%;font-weight:600}.site-compare code{font-size:11px}.site-compare td:last-child{width:46%;color:#626d60}
@media(max-width:620px){.site-replay{padding:12px}.guide-line-title{font-size:17px}.site-hub-links{gap:7px}.site-hub-links a{padding:8px 11px;font-size:11px}}

.guide-score-note{font-size:9px;line-height:1.5;color:#737d6e;margin:4px 0 0}

.site-opening-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
.site-opening-card{display:grid;grid-template-columns:136px minmax(0,1fr);gap:22px;align-items:start}
.site-card-position{display:block;border-radius:10px}
.site-card-copy{display:flex;flex-direction:column;min-width:0;height:100%}
.site-opening-card h2{margin-top:8px}
.site-footer>.legal-links{flex-basis:100%;display:flex;flex-wrap:wrap;gap:12px 20px;font-size:12px}
.site-opening-card p{margin-bottom:14px}
.site-opening-card .site-card-meta{padding-top:8px}
@media(max-width:900px){.site-opening-cards{grid-template-columns:minmax(0,1fr)}}
@media(max-width:620px){.site-opening-card{grid-template-columns:104px minmax(0,1fr);gap:16px}.site-opening-card h2{font-size:23px}}

.site-guide-content{row-gap:0}.site-guide-content>.site-guide-header{grid-column:1;grid-row:1;margin-top:16px;margin-bottom:10px;max-width:none}.site-guide-content>.site-prose{grid-column:1;grid-row:2}.site-guide-content>aside{grid-column:2;grid-row:1 / span 2;padding-top:16px;min-width:0}.site-guide-content .site-replay{max-width:440px;margin-inline:auto}.site-guide-content .site-guide-header h1{font-size:clamp(38px,4.5vw,58px)}
@media(max-width:900px){.site-guide-content{grid-template-columns:minmax(0,1fr)}.site-guide-content>.site-guide-header{grid-column:1;grid-row:1}.site-guide-content>aside{grid-column:1;grid-row:2;padding-top:15px}.site-guide-content>.site-prose{grid-column:1;grid-row:3}.site-guide-content .site-callout{max-width:440px;margin:22px auto}.site-guide-content>.site-guide-header{margin-bottom:10px}}