:root{--paper:var(--page);--green:var(--accent);--light-square:#e2ebe3;--dark-square:#8da795;--gold:#d6b760;--sans:Arial,Helvetica,sans-serif;--serif:var(--sans)}

*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:14px;line-height:1.5}
button,input,select,textarea{font:inherit}
button,a,select,input{ -webkit-tap-highlight-color:transparent}
button{cursor:pointer}
button:disabled{cursor:default;opacity:.35}
button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--accent-alt);outline-offset:3px}
button{transition:background .15s,color .15s}
button:hover:not(:disabled){filter:brightness(.97)}
[hidden]{display:none!important}
.site-shell{max-width:1232px;padding:0 44px;margin:auto}
.site-header{height:112px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:13px;color:var(--ink);text-decoration:none;font-size:14px;font-weight:750;letter-spacing:1.7px}
.brand-icon{display:grid;place-items:center;width:42px;height:46px;background:var(--green);border-radius:4px}
.brand-icon svg{width:32px;height:32px;fill:var(--button-text)}
.brand-subtitle{display:block;margin-top:3px;font-size:.8125rem;font-weight:500;letter-spacing:1.7px;color:var(--muted)}
.header-actions{display:flex;align-items:center;gap:35px}
.local-badge{font-size:1rem;color:var(--muted);display:flex;gap:7px;align-items:center}
.local-badge>span{width:5px;height:5px;border-radius:50%;background:var(--accent)}
.text-button{border:0;background:none;color:var(--green);padding:4px 0;font-size:1rem;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:9px}
.text-button:hover{text-decoration:underline;text-underline-offset:4px}
.intro{display:flex;align-items:end;justify-content:space-between;gap:24px;padding:43px 0 31px}
.eyebrow{font-size:.875rem;letter-spacing:2px;font-weight:650;color:var(--green);margin:0 0 12px}
.intro h1{font-family:var(--serif);font-size:clamp(32px,3.4vw,46px);font-weight:400;line-height:1.14;letter-spacing:-1.7px;margin:0}
.intro-copy{font-size:1rem;line-height:1.8;color:var(--muted);margin:0 0 3px}
.mobile-break{display:none}
.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 348px;gap:36px;align-items:start}
.board-section{min-width:0}
.player-bar{display:flex;align-items:center;justify-content:space-between;min-height:54px;padding:0 2px 12px;gap:12px}
.bottom-player{padding:15px 2px 0;min-height:59px}
.player-info{display:flex;gap:10px;align-items:center}
.player-avatar{height:32px;width:32px;border-radius:5px;display:grid;place-items:center;background:var(--panel);border:1px solid var(--line)}
.player-avatar.dark-avatar{background:#314a3d;border-color:#314a3d}
.player-avatar svg{width:25px;height:25px}
.player-name{font-weight:650;font-size:1rem;display:block}
.player-caption{font-size:.875rem;color:var(--muted);display:block;margin-top:1px}
.player-material{display:flex;align-items:center;gap:8px;font-size:.875rem;color:var(--muted)}
.turn-pill{font-size:.875rem;letter-spacing:.8px;text-transform:uppercase;font-weight:600;color:var(--green);background:var(--selected);padding:3px 8px;border-radius:3px}
.board-wrap{padding:7px;background:var(--copy);border-radius:5px;box-shadow:0 7px 20px #23302310}
/* Keep board geometry independent of SVG intrinsic sizes during rotation or
   returning from another app. Percentage padding uses the parent width;
   the out-of-flow grid cannot enlarge this square frame. */
.board-frame{position:relative;height:0;padding-bottom:100%}
.board{position:absolute;inset:0;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));grid-template-rows:repeat(8,minmax(0,1fr));min-width:0;min-height:0;overflow:hidden}
.square{position:relative;appearance:none;border:0;padding:0;display:grid;place-items:center;min-width:0;min-height:0;border-radius:0;background:var(--light-square);touch-action:manipulation}
.square.dark{background:var(--dark-square)}
.square:hover{filter:none!important}
.square.selected{background:#e4c572}
.square.last-move{background:#cdd391}
.square.dark.last-move{background:#aebd72}
.square.selected.dark{background:#d0b55e}
.square:focus-visible{outline:3px solid #e5a434;outline-offset:-3px;z-index:2}
.piece{width:81%;height:81%;max-height:87px;z-index:1;pointer-events:none;filter:drop-shadow(0 2px 1px #18281925)}
.square>.piece{position:absolute;inset:0;margin:auto}
.piece-white{--piece-fill:#fffdf0;--piece-stroke:#455c4a;--piece-detail:#455c4a}
.piece-black{--piece-fill:#273e32;--piece-stroke:#172c23;--piece-detail:#b8c7ad}
.piece-body{fill:var(--piece-fill);stroke:var(--piece-stroke);stroke-width:1.5;stroke-linejoin:round;stroke-linecap:round}
.piece-detail{fill:none;stroke:var(--piece-detail);stroke-width:1.2;stroke-linecap:round;stroke-linejoin:round}
.coord{position:absolute;font-size:.875rem;line-height:1;font-weight:650;color:#5e795d;pointer-events:none}
.dark .coord{color:#e9eddc}
.rank-label{top:4px;left:4px}
.file-label{bottom:4px;right:4px}
.legal-dot{position:absolute;width:22%;height:22%;border-radius:50%;background:#34544142;pointer-events:none}
.legal-capture{position:absolute;inset:5%;border:5px solid #34544166;border-radius:50%;pointer-events:none}
.square.safe-promotion{box-shadow:inset 0 0 0 4px #e6bd54}
.ghost-piece{opacity:.2;filter:none}
.setup-board .square.available:hover{box-shadow:inset 0 0 0 3px #d2af59}
.setup-board .square:not(.available){cursor:default}
.board-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:19px;margin-top:11px;border-top:1px solid var(--line)}
.toolbar-group{display:flex;gap:17px}
.toolbar-button{border:0;padding:0;background:none;font-size:1rem;color:var(--copy);display:flex;align-items:center;gap:6px}
.toolbar-button>span{font-size:17px;line-height:1}
.replay-controls{display:flex;gap:4px;align-items:center}
.replay-controls button{background:transparent;border:0;width:25px;height:27px;color:var(--copy);font-size:20px;line-height:1}
.replay-controls span{font-size:.875rem;color:var(--muted);min-width:43px;text-align:center;font-variant-numeric:tabular-nums}
.board-note{color:var(--muted);font-size:1rem;margin-top:13px;min-height:17px}
.workspace{border:1px solid var(--line);border-radius:7px;background:var(--page);overflow:hidden;margin-top:0}
.tabs{display:flex;padding:0 18px;border-bottom:1px solid var(--line);height:53px;gap:21px;align-items:stretch}
.tab{background:none;border:0;border-bottom:2px solid transparent;font-size:1rem;color:var(--muted);padding:0 0 1px;white-space:nowrap}
.tab.active{border-bottom-color:var(--green);color:var(--green);font-weight:650}
.tab-panel{padding:23px}
.status-card{padding-bottom:20px;border-bottom:1px solid var(--line)}
.status-eyebrow{display:flex;align-items:center;gap:6px;font-size:.8125rem;letter-spacing:1px;font-weight:650;color:var(--green)}
.status-dot{width:6px;height:6px;background:var(--green);border-radius:50%}
.status-dot.thinking{animation:pulse 1s infinite}
.status-dot.ended{background:var(--accent-alt)}
#variant-label{margin-left:auto;font-size:.8125rem;font-weight:400;letter-spacing:.7px;color:var(--muted)}
h2{font-family:var(--serif);font-size:27px;line-height:1.2;font-weight:400;letter-spacing:-.7px;margin:12px 0 7px}
.status-card p{color:var(--muted);font-size:1rem;margin:0;line-height:1.7}
.match-settings{padding:18px 0;border-bottom:1px solid var(--line)}
.field{display:flex;flex-direction:column;gap:6px}
.field label,#export-controls label{font-size:.875rem;font-weight:600;color:var(--muted)}
select{border:1px solid var(--line);background:var(--page);color:var(--ink);padding:9px 9px;border-radius:4px;font-size:1rem;width:100%;height:36px}
.two-fields{display:grid;grid-template-columns:1fr 1.23fr;gap:12px;margin-top:13px}
.new-game-row{display:flex;gap:9px;margin-top:18px}
.primary-button{background:var(--green);color:var(--button-text);border:1px solid var(--green);border-radius:4px;font-size:1rem;font-weight:600;padding:11px 15px;display:flex;align-items:center;justify-content:center;gap:24px;min-height:39px}
.primary-button:hover:not(:disabled){background:var(--button-hover)}
.new-game-row .primary-button{flex:1}
.secondary-button{background:transparent;color:var(--green);border:1px solid var(--line);border-radius:4px;font-size:1rem;padding:10px 13px;font-weight:550;min-height:39px}
.small-note{font-size:.875rem;color:var(--muted);margin:11px 0 0;line-height:1.6}
.section-label{display:flex;justify-content:space-between;align-items:center;padding:18px 0 10px}
.section-label h3{font-size:1rem;font-weight:600;margin:0}
.section-label>span{font-size:.875rem;color:var(--muted)}
.history{max-height:149px;min-height:123px;overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--accent) transparent}
.empty-history{text-align:center;margin:17px 0;color:var(--muted);font-size:1rem;line-height:1.7}
.empty-history .mini-pawn{display:block;font-size:28px;line-height:1;margin-bottom:8px;color:var(--muted)}
.history-row{display:grid;grid-template-columns:34px 1fr 1fr;align-items:center;min-height:28px;border-radius:2px}
.history-row:nth-child(odd){background:var(--panel)}
.move-number{font-size:.875rem;color:var(--muted);padding-left:8px}
.history-move{border:0;background:none;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:1rem;text-align:left;border-radius:2px;padding:5px 9px;min-height:27px;color:var(--copy)}
.history-move.current{background:var(--selected);color:var(--accent);font-weight:700}
.resume-button{width:100%;border:1px solid var(--accent);color:var(--green);background:var(--selected);border-radius:3px;padding:8px;font-size:1rem;margin-top:10px}
.file-actions{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:19px;padding-top:14px}
.file-actions .text-button{font-size:.875rem}
.file-actions .text-button span{font-size:16px}
.panel-heading h2{margin:0 0 12px;font-size:29px}
.panel-heading>p:not(.eyebrow){color:var(--muted);font-size:1rem;line-height:1.7;margin:0}
.preset-list{display:flex;flex-wrap:wrap;gap:6px;margin:20px 0 15px}
.preset-list button{font-size:.875rem;border:1px solid var(--line);background:var(--panel);color:var(--copy);border-radius:4px;padding:7px 9px}
.preset-list button.active{background:var(--green);color:var(--button-text);border-color:var(--green)}
.checkbox-label{display:flex;gap:7px;align-items:center;font-size:1rem;color:var(--muted);margin-bottom:20px}
.checkbox-label input{accent-color:var(--green);width:14px;height:14px}
.material-card{border:1px solid var(--material-line,#cbdac1);background:var(--material-bg,#edf3e6);border-radius:4px;padding:13px;color:var(--material-ink,#3b6734)}
.material-card.close{--material-line:#e3d194;--material-bg:#faf5dc;--material-ink:#836318}
.material-card.unbalanced{--material-line:#e3bbb2;--material-bg:#fbede7;--material-ink:#a34035}
.material-title{display:flex;gap:7px;align-items:center;font-size:1rem}
.material-title>span:first-child{font-size:15px;font-weight:700}
.material-title>span:last-child{margin-left:auto;font-size:.875rem;font-variant-numeric:tabular-nums}
.material-numbers{display:flex;gap:23px;margin-top:12px;font-size:.875rem}
.material-numbers b{margin-left:6px;font-size:16px;font-weight:500}
.material-card p{font-size:.875rem;line-height:1.6;margin:10px 0 0}
.piece-values{font-size:.875rem;color:var(--muted);text-align:center;margin:10px 0 20px}
.piece-values span{margin:0 3px}
.setup-first{margin-bottom:20px}
.setup-warning{color:var(--accent-alt);font-size:1rem;line-height:1.6}
.full-width{width:100%;justify-content:space-between}
.cancel-setup{width:100%;font-size:.875rem;margin-top:12px}
.rules-list{padding:0;list-style:none;counter-reset:rule;margin:21px 0}
.rules-list li{padding-left:27px;position:relative;margin-bottom:20px;counter-increment:rule}
.rules-list li:before{content:'0' counter(rule);position:absolute;left:0;top:2px;font-family:var(--serif);font-size:1rem;color:var(--muted)}
.rules-list h3{font-size:1rem;margin:0 0 5px;font-weight:650}
.rules-list p,.rule-footnote p{font-size:1rem;line-height:1.75;color:var(--muted);margin:0}
.rule-footnote{border-top:1px solid var(--line);padding-top:16px}
.rule-footnote strong{font-size:.875rem;font-weight:650}
.rule-footnote p{font-size:.875rem;margin-top:7px}
.below-board{display:flex;gap:12px;align-items:center;padding:25px 0 30px;color:var(--muted);font-size:1rem}
.tiny-board{color:var(--accent);font-size:25px}
.below-board p{margin:0;font-family:var(--serif);font-size:15px;font-style:italic}
.below-board>span:last-child{margin-left:auto;font-size:.875rem}




dialog{border:1px solid var(--line);border-radius:8px;padding:26px;background:var(--paper);color:var(--ink);width:min(530px,calc(100vw - 32px));max-height:90dvh;overflow-y:auto;box-shadow:0 25px 100px #0003}
dialog::backdrop{background:#13251b80;backdrop-filter:blur(3px)}
.dialog-heading{display:flex;align-items:start;justify-content:space-between;gap:20px}
.dialog-heading h2{margin:0}
.close-button{font-size:26px;border:0;background:none;padding:0 4px;color:var(--copy);line-height:1}
.dialog-heading+.eyebrow{margin-top:0}
dialog p{color:var(--muted);font-size:1rem;line-height:1.7}
.file-picker{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:1rem;background:var(--selected);border:1px dashed var(--accent);padding:13px;border-radius:4px;margin:18px 0;cursor:pointer}
.file-picker input{font-size:.875rem;width:190px;max-width:65%}
#file-text{display:block;width:100%;resize:vertical;height:200px;border:1px solid var(--line);background:var(--page);border-radius:4px;padding:12px;font:1rem/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--copy);margin-top:16px}
.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:17px}
.file-error{color:var(--danger);min-height:0;margin:10px 0 0;font-size:1rem}
#export-controls{margin-top:20px}
#export-controls select{margin-top:6px}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);max-width:calc(100vw - 32px);padding:12px 19px;background:#243e31;color:var(--button-text);border-radius:5px;font-size:1rem;z-index:10;box-shadow:0 5px 30px #0002}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@keyframes pulse{50%{opacity:.35}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}
}

@media(min-width:1250px){.game-layout{grid-template-columns:minmax(0,690px) 348px;gap:48px}
.board-wrap{padding:8px}
.intro{padding-top:49px;padding-bottom:35px}
}

@media(max-width:980px){.site-shell{padding:0 28px}
.game-layout{grid-template-columns:minmax(0,1fr) 306px;gap:23px}
.tab-panel{padding:19px}
.tabs{gap:18px;padding:0 19px}
.intro-copy{font-size:1rem}
.intro h1{font-size:36px}
.local-badge{display:none}
.status-eyebrow{font-size:.8125rem}
#variant-label{font-size:.8125rem}
.board-toolbar{flex-wrap:wrap;row-gap:12px}
.toolbar-group{gap:12px}
.toolbar-button{font-size:.875rem}
}

@media(max-width:760px){.site-shell{max-width:650px;padding:0 22px}
.site-header{height:87px}
.brand{font-size:1rem;letter-spacing:1.2px;gap:10px}
.brand-subtitle{font-size:.8125rem;letter-spacing:1.2px}
.brand-icon{width:35px;height:39px}
.header-actions .text-button{font-size:.875rem}
.intro{padding:31px 0 23px;display:block}
.intro h1{font-size:37px;letter-spacing:-1.1px}
.intro-copy{font-size:1rem;margin:13px 0 0}
.intro-copy br{display:none}
.eyebrow{font-size:.8125rem;margin-bottom:10px}
.game-layout{grid-template-columns:1fr;gap:25px}
.board-section{width:100%}
.board-wrap{padding:6px}
.player-bar{min-height:45px;padding-bottom:10px}
.bottom-player{padding-top:12px;padding-bottom:0;min-height:51px}
.board-toolbar{flex-wrap:nowrap;padding-top:14px;margin-top:10px}
.toolbar-button{font-size:1rem}
.toolbar-group{gap:17px}
.board-note{font-size:.875rem}
.tabs{height:49px;gap:27px;padding:0 22px}
.tab{font-size:1rem}
.tab-panel{padding:22px}
.status-card{padding-bottom:17px}
.status-eyebrow{font-size:.875rem}
#variant-label{font-size:.8125rem}
.status-card h2{font-size:30px}
.status-card p{font-size:1rem}
.match-settings .field label{font-size:1rem}
select{height:40px;font-size:1rem}
.two-fields{grid-template-columns:1fr 1fr}
.primary-button,.secondary-button{min-height:42px;font-size:1rem}
.small-note{font-size:.875rem}
.history{max-height:164px}
.history-move{font-size:1rem;padding:7px 10px}
.history-row{min-height:32px}
.file-actions .text-button{font-size:1rem}
.below-board{padding:24px 0;flex-wrap:wrap;gap:9px}
.below-board>span:last-child{width:100%;margin:0 0 0 30px}
.below-board p{font-size:14px}


.panel-heading h2{font-size:31px}
.rules-list p{font-size:1rem}
.rule-footnote p{font-size:1rem}
.preset-list button{font-size:1rem;padding:9px 11px}
.checkbox-label{font-size:1rem}
.piece-values{font-size:.875rem}
.material-title{font-size:1rem}
.material-card p{font-size:1rem}
.material-numbers{font-size:1rem}
.setup-first select{max-width:none}
.material-card{padding:16px}
}

@media(max-width:380px){.site-shell{padding:0 14px}
.brand-subtitle{font-size:.8125rem}
.header-actions .text-button{font-size:.875rem}
.intro h1{font-size:33px}
.toolbar-group{gap:11px}
.toolbar-button{font-size:.875rem}
.replay-controls{gap:0}
.coord{font-size:.8125rem}
.player-caption{font-size:.875rem}
.tabs{gap:23px}
}

/* Analysis stays in the existing workspace; candidate lines preview locally. */
.tabs{justify-content:space-between;gap:15px}
.analysis-entry{margin-top:13px}
.analysis-entry>.text-button{font-size:1rem}
.analysis-controls{display:grid;grid-template-columns:1fr auto;align-items:end;gap:12px;margin:19px 0 13px}
.analysis-controls .primary-button{min-height:36px}
.analysis-mode{display:flex;border:1px solid var(--line);border-radius:4px;padding:3px;gap:3px}
.analysis-mode button{flex:1;background:transparent;border:0;border-radius:3px;padding:6px 5px;color:var(--muted);font-size:.875rem}
.analysis-mode button.active{background:var(--selected);color:var(--green);font-weight:600}
.analysis-assessment{border-top:1px solid var(--line);margin-top:17px;padding-top:17px}
.analysis-assessment>.eyebrow{font-size:.8125rem}
.assessment-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.assessment-row h3{font:400 23px/1.3 var(--serif);letter-spacing:-.4px;margin:7px 0}
.assessment-row>span{font:600 18px/1.3 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--green);white-space:nowrap}
#analysis-metrics{font-size:.875rem;line-height:1.7;color:var(--muted);margin:0 0 15px}
.analysis-feedback{font-size:1rem;line-height:1.7;background:var(--selected);border-left:2px solid var(--accent);border-radius:0 3px 3px 0;padding:10px 12px}
.analysis-lines{display:flex;flex-direction:column;gap:7px}
.candidate{background:var(--panel);border:1px solid var(--line);border-radius:4px;width:100%;padding:10px;text-align:left;color:var(--ink)}
.candidate-header{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:.875rem}
.candidate-header strong{font-size:1rem;color:var(--green)}
.candidate-score{font:600 1rem ui-monospace,SFMono-Regular,Consolas,monospace}
.candidate-pv{display:block;font:.875rem/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;margin-top:5px;color:var(--muted);overflow-wrap:anywhere}
.candidate.played{border-style:dashed}
.candidate:hover{border-color:var(--accent)}
.line-preview{margin-top:14px;padding:11px;border:1px solid #d9cb9e;background:#faf5e3;border-radius:4px}
.line-preview>div:first-child{display:flex;justify-content:space-between;align-items:center;gap:8px}
.line-preview strong{font-size:.875rem}
.line-preview .text-button{font-size:.875rem}
.preview-moves{display:flex;flex-wrap:wrap;gap:5px;margin:10px 0}
.preview-moves button{font:1rem ui-monospace,SFMono-Regular,Consolas,monospace;background:transparent;border:1px solid #dbd7bd;border-radius:3px;padding:6px;color:var(--copy)}
.preview-moves button.active{background:#e4d8aa;border-color:#b9a66f}
.analysis-caveat{font-size:.875rem;line-height:1.7;color:var(--muted);margin:14px 0 19px}
.engine-details{border-top:1px solid var(--line);padding:13px 0}
.engine-details summary{font-size:1rem;font-weight:600;color:var(--green);cursor:pointer}
.engine-details p,.engine-details li{font-size:.875rem;line-height:1.75;color:var(--muted)}
.engine-details p{margin:10px 0 0}
.engine-details ol{padding-left:18px;margin-bottom:0}
.engine-details li{padding-left:3px;margin:10px 0}
.engine-details strong{font-weight:650;color:var(--copy)}
.fact-row{margin-top:10px;display:grid;grid-template-columns:1fr 1fr;gap:10px;font-size:.875rem;color:var(--muted)}
.fact-row strong{display:block;font-size:1rem;color:var(--accent);font-weight:600}
.fact-explanation{font-size:.875rem;color:var(--muted);line-height:1.7;margin:10px 0 0}
.evaluation-table{width:100%;border-collapse:collapse;margin-top:12px;font-size:.875rem}
.evaluation-table th{font-size:.875rem;text-align:left;color:var(--muted);font-weight:500;padding:4px 0}
.evaluation-table td{padding:6px 0;border-bottom:1px solid var(--line)}
.evaluation-table th:last-child,.evaluation-table td:last-child{text-align:right;font-variant-numeric:tabular-nums}
.evaluation-table tfoot td{font-weight:650;color:var(--green);border-bottom:0}
.square.preview-from{box-shadow:inset 0 0 0 3px #bfa34d}
.square.preview-to{background:#dccc8d}
.square.dark.preview-to{background:#b9b274}
.square.analysis-passed:after{content:'';position:absolute;width:8px;height:8px;right:5px;top:5px;border:2px solid #f5f3df;background:#315b3b;border-radius:50%;pointer-events:none;z-index:2}

@media(max-width:760px){.tabs{gap:20px}
.analysis-mode button{font-size:1rem;padding:8px}
.analysis-controls .primary-button{min-height:40px}
.candidate{padding:13px}
.candidate-pv{font-size:1rem}
.engine-details summary{font-size:1rem}
.engine-details p,.engine-details li,.fact-row,.evaluation-table,.fact-explanation{font-size:1rem}
.analysis-caveat{font-size:1rem}
.preview-moves button{padding:8px}
.analysis-entry>.text-button{font-size:1rem}
}


/* Teaching-page integration. The palette and theme preference are shared with
   sanchace.xyz/teaching; these rules affect only this game page. */
:root {
  --danger: #a34035;
  --warning-bg: #faf5dc;
  --warning-ink: #755915;
  --warning-line: #d8c480;
  --success-bg: #edf3e6;
  --success-ink: #35602f;
  --success-line: #bccdb4;
  --danger-bg: #fbede7;
  --danger-line: #d7aea5;
}
:root[data-theme="dark"] {
  --light-square: #b5c6b4;
  --dark-square: #6c8b79;
  --danger: #ffb8ae;
  --warning-bg: #393422;
  --warning-ink: #ead391;
  --warning-line: #74683c;
  --success-bg: #283e2c;
  --success-ink: #c0dfb7;
  --success-line: #52704d;
  --danger-bg: #412b2a;
  --danger-line: #865b54;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --light-square: #b5c6b4;
    --dark-square: #6c8b79;
    --danger: #ffb8ae;
    --warning-bg: #393422;
    --warning-ink: #ead391;
    --warning-line: #74683c;
    --success-bg: #283e2c;
    --success-ink: #c0dfb7;
    --success-line: #52704d;
    --danger-bg: #412b2a;
    --danger-line: #865b54;
  }
}
body { font: 1rem/1.6 var(--sans); color: var(--copy); }
h1, h2, h3 { color: var(--ink); }
h2 { font-size: 1.75rem; font-weight: 500; letter-spacing: -.4px; }
button:focus-visible, a:focus-visible, select:focus-visible,
input:focus-visible, textarea:focus-visible { outline-color: var(--accent); }
.teaching-header { height: auto; }
.teaching-nav .text-button { color: var(--ink); font-size: inherit; font-weight: 400; }
.teaching-wrap, .site-shell { width: min(1200px, calc(100% - 80px)); }
.site-shell { max-width: none; padding: 0; margin-inline: auto; }
.pawns-crumbs { display: flex; flex-wrap: wrap; gap: 10px; padding-top: 28px; font-size: .9375rem; color: var(--muted); }
.pawns-crumbs a { color: var(--muted); text-decoration: none; }
.pawns-crumbs a:hover { color: var(--accent); text-decoration: underline; }
.intro { align-items: center; padding: 22px 0 32px; }
.intro h1 { font: 500 clamp(2rem, 4vw, 3rem)/1.15 var(--sans); letter-spacing: -1.3px; }
.intro-copy { margin: 14px 0 0; max-width: 650px; color: var(--copy); font-size: 1.125rem; line-height: 1.6; }
.local-badge { font-size: .875rem; white-space: nowrap; }
.game-layout { grid-template-columns: minmax(0, 1fr) 390px; gap: 36px; }
.board-wrap { padding: 8px; border-radius: 4px; background: var(--panel); border: 1px solid var(--line); box-shadow: none; }
.board { border-radius: 2px; }
.player-bar { min-height: 62px; }
.player-info { min-width: 0; }
.player-name { font-size: 1rem; }
.player-caption, .player-material { font-size: .875rem; }
.player-material { flex-wrap: wrap; justify-content: flex-end; }
.turn-pill { font-size: .75rem; letter-spacing: .5px; }
.coord { font-size: 10px; color: #36503e; }
.dark .coord { color: #f1f5ec; }
.board-toolbar { flex-wrap: wrap; padding-top: 12px; }
.toolbar-group { gap: 16px; }
.toolbar-button { min-height: 44px; font-size: .9375rem; }
.replay-controls button { width: 36px; min-height: 44px; }
.replay-controls span { font-size: .8125rem; min-width: 52px; }
.board-note { font-size: .875rem; line-height: 1.6; margin-top: 6px; }
.workspace { border-radius: 4px; color: var(--copy); }
.tabs { height: 58px; gap: 16px; padding-inline: 22px; }
.tab { font-size: 1rem; }
.tab-panel { padding: 22px; }
.status-eyebrow { font-size: .75rem; letter-spacing: .5px; flex-wrap: wrap; row-gap: 8px; }
#variant-label { font-size: .6875rem; }
.status-card p { font-size: .9375rem; line-height: 1.6; }
.eyebrow { font-size: .75rem; letter-spacing: 1.1px; }
.field label, #export-controls label { font-size: .875rem; }
select { height: 44px; font-size: 1rem; padding: 8px; border-color: var(--line); }
.primary-button, .secondary-button { min-height: 44px; font-size: .9375rem; padding: 10px 13px; gap: 14px; }
.new-game-row { flex-wrap: wrap; }
.small-note { font-size: .875rem; line-height: 1.6; }
.section-label h3 { font-size: 1rem; }
.section-label > span { font-size: .8125rem; }
.history { max-height: 176px; min-height: 140px; }
.history-row { min-height: 36px; }
.history-move { font-size: .9375rem; min-height: 36px; }
.move-number { font-size: .8125rem; }
.empty-history { font-size: .9375rem; }
.resume-button { min-height: 44px; font-size: .9375rem; }
.file-actions { flex-wrap: wrap; gap: 10px; }
.file-actions .text-button, .analysis-entry > .text-button { font-size: .9375rem; min-height: 44px; }
.panel-heading h2 { font-size: 1.75rem; }
.panel-heading > p:not(.eyebrow) { font-size: 1rem; line-height: 1.6; }
.preset-list button { font-size: .875rem; min-height: 44px; padding: 9px 11px; }
.checkbox-label { font-size: 1rem; line-height: 1.6; }
.checkbox-label input { width: 18px; height: 18px; }
.material-card { --material-line: var(--success-line); --material-bg: var(--success-bg); --material-ink: var(--success-ink); }
.material-card.close { --material-line: var(--warning-line); --material-bg: var(--warning-bg); --material-ink: var(--warning-ink); }
.material-card.unbalanced { --material-line: var(--danger-line); --material-bg: var(--danger-bg); --material-ink: var(--danger); }
.material-title { font-size: 1rem; }
.material-numbers, .material-card p, .piece-values { font-size: .875rem; }
.cancel-setup { min-height: 44px; }
.rules-list h3 { font-size: 1rem; font-weight: 600; }
.rules-list p, .rule-footnote p { font-size: .9375rem; line-height: 1.7; }
.rule-footnote strong { font-size: .9375rem; }
.analysis-mode button { min-height: 44px; font-size: .875rem; }
.analysis-controls .primary-button { min-height: 44px; }
.assessment-row h3 { font-size: 1.375rem; }
#analysis-metrics, .analysis-caveat { font-size: .875rem; }
.candidate-header, .candidate-pv, .candidate-score { font-size: .8125rem; }
.candidate-header strong { font-size: .9375rem; }
.candidate-pv { line-height: 1.7; }
.line-preview { background: var(--warning-bg); color: var(--warning-ink); border-color: var(--warning-line); }
.line-preview strong, .line-preview .text-button { font-size: .875rem; }
.preview-moves button { min-height: 40px; color: var(--warning-ink); border-color: var(--warning-line); font-size: .875rem; }
.preview-moves button.active { color: var(--button-text); background: var(--accent); border-color: var(--accent); }
.engine-details summary { font-size: 1rem; line-height: 1.6; }
.engine-details p, .engine-details li, .fact-row, .fact-explanation, .evaluation-table { font-size: .875rem; }
.fact-row strong { font-size: 1rem; }
.evaluation-table th { font-size: .8125rem; }
.below-board { align-items: start; flex-wrap: wrap; padding-block: 28px; gap: 10px; }
.below-board p { font: 400 1rem/1.6 var(--sans); }
.below-board > span:last-child { font-size: .875rem; margin-left: auto; }
.teaching-footer { font-size: .9375rem; align-items: center; }
.teaching-footer > span { font: inherit; letter-spacing: normal; }
.teaching-footer .text-button { font-size: inherit !important; font-weight: 400; color: inherit; min-height: 44px; }
.file-picker { flex-wrap: wrap; background: var(--panel); }
.file-picker input { width: 100%; max-width: 100%; font-size: .875rem; }
#file-text { color: var(--ink); font-size: .9375rem; }
dialog p { font-size: 1rem; }
.dialog-actions { flex-wrap: wrap; }
.toast { background: var(--accent); color: var(--button-text); font-size: .9375rem; }
@media (max-width: 1100px) {
  .game-layout { grid-template-columns: minmax(0, 1fr) 350px; gap: 24px; }
  .teaching-header { flex-wrap: nowrap; }
  .teaching-nav { order: 0; width: auto; margin-left: auto; }
  .local-badge { display: none; }
}
@media (max-width: 900px) {
  .game-layout { grid-template-columns: 1fr; gap: 28px; }
  .site-shell { max-width: 700px; }
  .workspace { width: 100%; }
  .player-bar { min-height: 60px; }
}
@media (max-width: 760px) {
  .teaching-wrap, .site-shell { width: calc(100% - 40px); }
  .site-shell { padding: 0; }
  .teaching-header { flex-wrap: wrap; gap: 12px; }
  .teaching-nav { width: 100%; order: 1; margin: 0; justify-content: space-between; }
  .teaching-theme { margin-left: auto; }
  .pawns-crumbs { padding-top: 24px; font-size: .875rem; }
  .intro { padding: 22px 0 24px; }
  .intro-copy { font-size: 1rem; }
  .board-wrap { padding: 5px; }
  .board-toolbar { flex-wrap: wrap; gap: 4px 12px; }
  .board-note { font-size: .875rem; }
  .tabs { height: 56px; gap: 12px; }
  .tab { font-size: 1rem; }
  .status-card h2 { font-size: 1.75rem; }
  .status-card p { font-size: .9375rem; }
  .match-settings .field label { font-size: .875rem; }
  .two-fields { grid-template-columns: 1fr 1fr; }
  .below-board > span:last-child { width: 100%; margin: 0; }
}
@media (max-width: 380px) {
  .teaching-wrap, .site-shell { width: calc(100% - 28px); }
  .tabs, .tab-panel { padding-inline: 16px; }
  .two-fields { grid-template-columns: 1fr; }
  .player-material { max-width: 42%; }
  .replay-controls button { width: 32px; }
}