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var(--st-blue);outline-offset:3px}.st-button:disabled{opacity:.55;cursor:default}.st-primary{background:#315e84;border-color:#315e84;color:#fff}.st-primary:hover:not(:disabled){background:#244c70}.st-settings>.st-primary{width:100%}.st-actions{display:flex;flex-wrap:wrap;gap:9px;margin:20px 0}.st-quiet{background:transparent;color:#667078;border-color:transparent}.st-detail{border-top:1px solid var(--st-border);padding-top:18px}.st-preview-note{max-width:1120px;margin:18px auto 0;padding:10px 14px;background:#fff6dc;color:#735a18;border-radius:6px;font-size:12px}.st-dialog-backdrop{position:fixed;inset:0;z-index:20;background:#17263288;display:flex;align-items:center;justify-content:center;padding:20px}.st-dialog{background:#fff;border-radius:14px;padding:26px;max-width:420px;width:100%;box-shadow:0 12px 60px #0003}.st-dialog h2{font-size:20px;margin:0 0 12px}.st-dialog p{font-size:14px;color:var(--st-muted)}.st-dialog-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:22px 0 12px}@media(max-width:850px){.st-chess{padding:0 16px 24px}.st-layout{gap:26px;grid-template-columns:minmax(0,1fr) 250px}.st-panel{padding-top:60px}.st-settings{padding:17px}.st-panel h1{font-size:23px}.st-piece{font-size:clamp(25px,5.2vw,49px)}}@media(max-width:650px){.st-chess{padding:0 10px 22px}.st-header{height:58px;gap:16px}.st-brand{font-size:17px}.st-private{font-size:10px}.st-layout{display:flex;flex-direction:column;margin-top:10px;gap:12px}.st-panel,.st-play{width:100%}.st-player{min-height:49px}.st-clock{font-size:23px;padding:1px 10px;min-width:96px}.st-board{border-width:4px}.st-piece{font-size:clamp(25px,9vw,51px)}.st-panel{padding-top:6px}.st-panel h1{font-size:22px}.st-panel>.st-muted{margin-bottom:16px}.st-settings{padding:18px}.st-status{font-size:13px;min-height:38px}.st-instruction{font-size:11px}.st-file,.st-rank{font-size:8px}.st-detail{margin-bottom:0}}@media(prefers-reduced-motion:reduce){.st-chess *{animation:none!important;transition:none!important}}.st-history,.st-replay{margin-top:22px;padding:16px;background:#fff;border:1px solid var(--st-border);border-radius:12px;min-width:0}.st-history h2,.st-replay h2{font-size:15px;line-height:1.5;margin:0 0 10px;font-weight:750}.st-history-list{display:grid;gap:8px;list-style:none;margin:12px 0;padding:0}.st-history-list .st-button{width:100%;text-align:left;overflow-wrap:anywhere}.st-history>.st-button,.st-replay>.st-button{margin:8px 6px 0 0}.st-replay-list{max-height:min(22rem,50vh);overflow:auto;overscroll-behavior:contain;margin:12px 0;padding:0 8px 0 2.5rem;font-size:13px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.st-replay-list li{padding:5px 0;border-bottom:1px solid var(--st-border)}.st-replay-list li:last-child{border-bottom:0}.st-history h2:focus-visible,.st-replay h2:focus-visible,.st-replay-list:focus-visible{outline:3px solid var(--st-blue);outline-offset:3px}.st-chess{--st-surface:#fff;--st-control-border:#c8d1d4;--st-button-text:#294253;--st-hover:#e9efef;--st-primary:#315e84;--st-primary-hover:#244c70;--st-primary-text:#fff;--st-clock-bg:#e8edeb;--st-clock-active:#243d54;--st-clock-text:#fff;--st-frame:#334a59;--st-light:#e6ece8;--st-dark:#7995a1;--st-coordinate:#0b1c25;--st-selection:#e7cf8b;--st-selection-ring:#a06e00;--st-square-focus:#0b293d;--st-mark:#617b93;color-scheme:light;min-height:100dvh}.st-chess[data-theme=modern]{--st-bg:#f4f6fa;--st-blue:#284f91;--st-light:#eef2fa;--st-dark:#8d9fc1;--st-frame:#324765;--st-primary:#284f91;--st-primary-hover:#1d3e76}.st-chess[data-theme=dark]{--st-bg:#121a22;--st-text:#edf2f7;--st-muted:#b9c5d0;--st-blue:#a9caff;--st-border:#596b7b;--st-surface:#1c2935;--st-control-border:#8293a3;--st-button-text:#edf2f7;--st-hover:#344758;--st-primary:#a9caff;--st-primary-hover:#d0e2ff;--st-primary-text:#101e30;--st-clock-bg:#2b3b49;--st-clock-active:#a9caff;--st-clock-text:#101e30;--st-frame:#8293a3;--st-light:#c3cdd4;--st-dark:#708b9b;--st-mark:#b9c5d0;color-scheme:dark}.st-chess[data-theme=contrast]{--st-bg:#000;--st-text:#fff;--st-muted:#fff;--st-blue:#ffeb00;--st-border:#fff;--st-surface:#000;--st-control-border:#fff;--st-button-text:#fff;--st-hover:#303030;--st-primary:#ffeb00;--st-primary-hover:#fff59a;--st-primary-text:#000;--st-clock-bg:#000;--st-clock-active:#ffeb00;--st-clock-text:#000;--st-frame:#fff;--st-light:#fff;--st-dark:#9caab5;--st-coordinate:#000;--st-selection:#ffeb00;--st-selection-ring:#000;--st-square-focus:#000;--st-mark:#fff;color-scheme:dark}.st-chess .st-player-mark{color:var(--st-mark)}.st-chess .st-clock{background:var(--st-clock-bg)}.st-chess .st-clock-active{background:var(--st-clock-active);color:var(--st-clock-text)}.st-chess .st-board{border-color:var(--st-frame)}.st-chess .st-light{background:var(--st-light)}.st-chess .st-dark{background:var(--st-dark)}.st-chess .st-file,.st-chess .st-rank{color:var(--st-coordinate)}.st-chess .st-square[aria-pressed=true]{background:var(--st-selection);box-shadow:inset 0 0 0 4px var(--st-selection-ring)}.st-chess .st-square:focus-visible{outline-color:var(--st-square-focus)}.st-chess .st-dialog,.st-chess .st-field select,.st-chess .st-history,.st-chess .st-replay,.st-chess .st-settings{background:var(--st-surface)}.st-chess .st-field select{border-color:var(--st-control-border)}.st-chess .st-time{color:var(--st-text)}.st-chess .st-button{background:var(--st-surface);border-color:var(--st-control-border);color:var(--st-button-text)}.st-chess .st-button:hover:not(:disabled){background:var(--st-hover)}.st-chess .st-primary{background:var(--st-primary);border-color:var(--st-primary);color:var(--st-primary-text)}.st-chess .st-primary:hover:not(:disabled){background:var(--st-primary-hover)}.st-chess .st-quiet{background:transparent;color:var(--st-muted);border-color:transparent}.st-chess .st-board-tools{align-items:center;flex-wrap:wrap;gap:10px;justify-content:space-between}.st-chess .st-theme{display:flex;align-items:center;gap:8px;margin:0}.st-chess .st-theme select{width:auto;margin:0;min-width:8rem}.st-chess .st-board-tools>[role=status]{flex-basis:100%}.st-chess[data-theme=contrast] .st-piece-white .st-piece{color:#fff;text-shadow:1px 1px 0 #000,-1px -1px 0 #000,1px -1px 0 #000,-1px 1px 0 #000}.st-chess[data-theme=contrast] .st-piece-black .st-piece{color:#000;text-shadow:none}.st-chess[data-theme=contrast] .st-square{border:1px solid #000}.st-chess[data-theme=contrast] .st-square:focus-visible{outline:3px dashed #000;outline-offset:-6px}.st-chess[data-theme=contrast] .st-clock{border:1px solid #fff}@media(forced-colors:active){.st-chess[data-theme] .st-board,.st-chess[data-theme] .st-clock,.st-chess[data-theme] .st-settings,.st-chess[data-theme] .st-square{border:1px solid CanvasText}.st-chess[data-theme] .st-square[aria-pressed=true]{outline:3px solid Highlight}.st-chess[data-theme] .st-square:focus-visible{outline:3px dashed Highlight}.st-chess[data-theme] .st-piece-black .st-piece,.st-chess[data-theme] .st-piece-white .st-piece{color:CanvasText;text-shadow:none}.st-chess[data-theme] .st-piece-white:after{content:"白";position:absolute;right:2px;top:2px;font-size:9px}}.st-pgn-text{box-sizing:border-box;display:block;width:100%;max-width:100%;min-height:12rem;resize:vertical;font:.85rem/1.5 ui-monospace,monospace;color:inherit;background:transparent;border:1px solid;border-radius:.5rem;padding:.75rem;margin-bottom:.75rem}.st-analysis-score{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;line-height:1.6;overflow-wrap:anywhere}