.tc-chess{--tc-gold:var(--gold,oklch(82% .115 88));--tc-bg:var(--background,oklch(13% 0 0));--tc-card:var(--card,oklch(20% 0 0));--tc-text:var(--foreground,oklch(98% 0 0));--tc-muted:var(--muted-foreground,oklch(72% 0 0));--tc-border:var(--border,oklch(30% 0 0));color:var(--tc-text);border:1px solid var(--tc-border);background:var(--tc-bg);box-sizing:border-box;border-radius:20px;max-width:1160px;margin:0 auto;padding:clamp(16px,3vw,36px);font-family:inherit}.tc-chess *{box-sizing:border-box}.tc-chess button,.tc-chess select{font:inherit}.tc-chess button{cursor:pointer}.tc-chess button:disabled{cursor:not-allowed;opacity:.45}.tc-chess button:focus-visible,.tc-chess select:focus-visible,.tc-chess summary:focus-visible,.tc-chess-history-scroll:focus-visible{outline:3px solid var(--tc-gold);outline-offset:4px}.tc-chess-heading{justify-content:space-between;align-items:center;gap:20px;margin-bottom:26px;display:flex}.tc-chess-eyebrow{letter-spacing:.2em;text-transform:uppercase;font-weight:650;line-height:1.6;color:var(--tc-gold)!important;margin:0 0 5px!important;font-size:10px!important}.tc-chess-heading h2{letter-spacing:-.055em;margin:0;font-size:clamp(30px,4vw,44px);font-weight:500;line-height:1.15}.tc-chess-heading h2>span{color:var(--tc-gold)}.tc-chess-badge{letter-spacing:.02em;white-space:nowrap;border:1px solid var(--tc-border);color:var(--tc-muted);border-radius:999px;padding:9px 12px;font-size:11px}.tc-chess-layout{grid-template-columns:minmax(0,1.8fr) minmax(240px,1fr);gap:clamp(24px,4vw,48px);display:grid}.tc-chess-play-area{min-width:0}.tc-chess-player{align-items:center;gap:10px;min-height:58px;padding:5px 0 12px;display:flex}.tc-chess-player:last-of-type{padding:14px 0 4px}.tc-chess-avatar{border:1px solid var(--tc-border);background:var(--tc-card);border-radius:9px;flex:0 0 36px;justify-content:center;align-items:center;height:36px;display:flex}.tc-chess-avatar svg{width:29px;height:29px}.tc-chess-player strong{font-size:13px;font-weight:550;line-height:1.5;display:block}.tc-chess-player>div>span{color:var(--tc-muted);font-size:11px;line-height:1.5;display:block}.tc-chess-captures{flex-wrap:wrap;flex:1;justify-content:flex-end;gap:0;max-height:34px;display:flex;overflow:hidden}.tc-chess-captures svg{width:17px;height:20px;margin-left:-3px}.tc-chess-thinking{flex-shrink:0;align-items:center;gap:3px;display:flex}.tc-chess-thinking i{background:var(--tc-gold);border-radius:50%;width:4px;height:4px;animation:1.2s infinite tc-chess-pulse}.tc-chess-thinking i:nth-child(2){animation-delay:.2s}.tc-chess-thinking i:nth-child(3){animation-delay:.4s}.tc-chess-turn-dot{background:var(--tc-gold);border-radius:50%;flex-shrink:0;width:7px;height:7px}.tc-chess-board-wrap{background:var(--tc-border);border-radius:7px;padding:5px;position:relative;box-shadow:0 16px 45px #0005}.tc-chess-board{aspect-ratio:1;border-radius:3px;grid-template-columns:repeat(8,minmax(0,1fr));display:grid;overflow:hidden}.tc-chess-square{aspect-ratio:1;touch-action:manipulation;isolation:isolate;-webkit-tap-highlight-color:transparent;border:0;border-radius:0;justify-content:center;align-items:center;min-width:0;padding:0;transition:filter .12s;display:flex;position:relative;overflow:visible}.tc-chess-square.is-light{background:var(--tc-text);color:var(--tc-bg)}.tc-chess-square.is-dark{background:var(--tc-bg);color:var(--tc-text)}.tc-chess-square:before{content:"";z-index:-1;pointer-events:none;position:absolute;inset:0}.tc-chess-square.is-last:before{background:color-mix(in oklch, var(--tc-gold), transparent 65%);box-shadow:inset 0 0 0 2px color-mix(in oklch, var(--tc-gold), transparent 60%)}.tc-chess-square.is-selected:before{background:color-mix(in oklch, var(--tc-gold), transparent 40%);box-shadow:inset 0 0 0 3px var(--tc-text)}.tc-chess-square.is-check:before{box-shadow:inset 0 0 0 3px var(--tc-gold)}.tc-chess-square:focus-visible{z-index:3;outline-offset:-5px;outline:3px solid #fff;box-shadow:inset 0 0 0 7px #111}.tc-chess-square[aria-disabled=false]:hover{filter:brightness(1.1)}.tc-chess-piece{pointer-events:none;filter:drop-shadow(0 1px 1px #0004);flex-shrink:0;width:84%;height:84%;display:block}.tc-chess-file,.tc-chess-rank{z-index:1;pointer-events:none;font-size:clamp(8px,1vw,11px);font-weight:650;line-height:1;position:absolute}.tc-chess-rank{top:4px;left:4px}.tc-chess-file{bottom:3px;right:4px}.tc-chess-legal{pointer-events:none;background:#15151575;border-radius:50%;position:absolute;inset:39%}.tc-chess-square.is-dark .tc-chess-legal{background:color-mix(in oklch, var(--tc-gold), transparent 40%)}.tc-chess-legal.is-capture{border:4px solid color-mix(in oklch, var(--tc-gold), #000 20%);inset:5%;background:0 0!important}.tc-chess-check-label{letter-spacing:.07em;background:var(--tc-gold);color:#131313;z-index:2;padding:1px 3px;font-size:7px;font-weight:800;line-height:1.25;position:absolute;bottom:0}.tc-chess-help{color:var(--tc-muted);margin:12px 0 0;font-size:11px;line-height:1.6}.tc-chess-sidebar{flex-direction:column;gap:20px;min-width:0;padding-top:6px;display:flex}.tc-chess-status{border-bottom:1px solid var(--tc-border);padding:18px 0 20px;position:relative}.tc-chess-status h3{letter-spacing:-.04em;margin:8px 0 10px;font-size:clamp(22px,2.4vw,29px);font-weight:500;line-height:1.25}.tc-chess-status>p:not(.tc-chess-eyebrow){color:var(--tc-muted);min-height:20px;margin:0;font-size:12px;line-height:1.7}.tc-chess-status.has-result{border-bottom-color:var(--tc-gold);padding-right:52px}.tc-chess-result-mark{color:var(--tc-gold);font-variant-numeric:tabular-nums;letter-spacing:-.08em;font-size:22px;position:absolute;top:46px;right:0}.tc-chess-settings label{margin-bottom:8px;font-size:12px;font-weight:550;display:block}.tc-chess-settings select{border:1px solid var(--tc-border);background:var(--tc-card);width:100%;color:var(--tc-text);border-radius:9px;min-height:44px;padding:11px 12px;font-size:13px}.tc-chess-settings select:disabled{opacity:.75}.tc-chess-settings p{color:var(--tc-muted);margin:8px 0 0;font-size:11px;line-height:1.55}.tc-chess-primary,.tc-chess-secondary{border-radius:9px;justify-content:center;align-items:center;gap:7px;min-height:44px;padding:11px 13px;display:flex;font-size:12px!important;font-weight:600!important}.tc-chess-primary{background:var(--tc-gold);color:#141414;border:1px solid var(--tc-gold)}.tc-chess-primary>span{margin-left:auto;font-size:19px;line-height:1}.tc-chess-secondary{background:var(--tc-card);color:var(--tc-text);border:1px solid var(--tc-border)}.tc-chess-secondary>span{border:1px solid var(--tc-border);color:var(--tc-muted);border-radius:4px;padding:2px 4px;font-size:9px;font-weight:400}.tc-chess-primary:not(:disabled):hover{filter:brightness(1.1)}.tc-chess-secondary:not(:disabled):hover{border-color:var(--tc-gold)}.tc-chess-controls{grid-template-columns:1.2fr 1fr;gap:8px;display:grid}.tc-chess-controls>.tc-chess-text-button{grid-column:1/-1;justify-self:center}.tc-chess-text-button{text-underline-offset:4px;color:var(--tc-muted);background:0 0;border:0;min-height:38px;padding:8px;text-decoration:underline;font-size:11px!important}.tc-chess-note{color:var(--tc-muted);margin:0;font-size:11px;line-height:1.6}.tc-chess-notice,.tc-chess-confirm{border:1px solid var(--tc-gold);background:color-mix(in oklch, var(--tc-gold), var(--tc-bg) 95%);border-radius:9px;padding:13px;font-size:12px;line-height:1.6}.tc-chess-notice p,.tc-chess-confirm p{margin:0 0 10px}.tc-chess-notice>button{width:100%}.tc-chess-confirm>div{flex-wrap:wrap;gap:7px;display:flex}.tc-chess-confirm button{white-space:nowrap;flex:1}.tc-chess-history{border:1px solid var(--tc-border);border-radius:10px;overflow:hidden}.tc-chess-history-heading{background:var(--tc-card);border-bottom:1px solid var(--tc-border);justify-content:space-between;align-items:center;gap:10px;padding:11px 13px;display:flex}.tc-chess-history-heading h3{margin:0;font-size:12px;font-weight:550}.tc-chess-history-heading>span{color:var(--tc-muted);font-size:10px}.tc-chess-history-scroll{scrollbar-width:thin;scrollbar-color:var(--tc-border) transparent;min-height:114px;max-height:198px;overflow:auto}.tc-chess-history-empty{color:var(--tc-muted);margin:0;padding:24px 13px;font-size:12px;line-height:1.8}.tc-chess-history ol{font-variant-numeric:tabular-nums;margin:0;padding:5px 0;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px;list-style:none}.tc-chess-history li{grid-template-columns:35px 1fr 1fr;gap:7px;padding:8px 13px;line-height:1.25;display:grid}.tc-chess-history li:nth-child(2n){background:#ffffff04}.tc-chess-history li:last-child{color:var(--tc-gold)}.tc-chess-move-number{color:var(--tc-muted)}.tc-chess-rules{color:var(--tc-muted);font-size:11px;line-height:1.7}.tc-chess-rules summary{cursor:pointer;min-height:30px;line-height:30px;list-style-position:inside}.tc-chess-rules p{margin:8px 0}.tc-chess-overlay{z-index:6;background:#000b;border-radius:7px;justify-content:center;align-items:center;padding:12px;display:flex;position:absolute;inset:0}.tc-chess-promotion{border:1px solid var(--tc-gold);background:var(--tc-bg);text-align:center;border-radius:12px;width:min(100%,370px);padding:22px 16px 14px;box-shadow:0 14px 60px #0007}.tc-chess-promotion h3{letter-spacing:-.04em;margin:8px 0 19px;font-size:22px;font-weight:500}.tc-chess-promotion-choices{grid-template-columns:repeat(4,1fr);gap:7px;display:grid}.tc-chess-promotion-choices button{border:1px solid var(--tc-border);background:var(--tc-card);min-width:0;color:var(--tc-text);border-radius:8px;flex-direction:column;align-items:center;gap:3px;padding:4px 0 8px;display:flex}.tc-chess-promotion-choices button:hover{border-color:var(--tc-gold)}.tc-chess-promotion-choices svg{width:100%;max-width:66px;height:auto}.tc-chess-promotion-choices span{text-transform:capitalize;font-size:10px}.tc-chess-promotion>.tc-chess-text-button{margin-top:9px}@keyframes tc-chess-pulse{0%,80%,to{opacity:.3}40%{opacity:1}}@media (width<=760px){.tc-chess{border-radius:14px;padding:18px}.tc-chess-layout{grid-template-columns:1fr;gap:20px}.tc-chess-heading{margin-bottom:16px}.tc-chess-sidebar{grid-template-columns:1fr 1fr;gap:16px;padding-top:0;display:grid}.tc-chess-status{grid-column:1/-1;padding:8px 0 15px}.tc-chess-status h3{font-size:25px}.tc-chess-settings{grid-column:1}.tc-chess-sidebar>.tc-chess-primary{align-self:center;min-height:48px}.tc-chess-controls{align-self:center}.tc-chess-history,.tc-chess-rules,.tc-chess-note,.tc-chess-notice,.tc-chess-confirm{grid-column:1/-1}.tc-chess-help{font-size:10px}.tc-chess-history-scroll{min-height:82px;max-height:144px}.tc-chess-history-empty{padding:16px 13px}.tc-chess-player{min-height:49px}.tc-chess-square .tc-chess-piece{width:86%;height:86%}.tc-chess-result-mark{top:31px}.tc-chess-file,.tc-chess-rank{font-size:9px}}@media (width<=400px){.tc-chess{padding:12px}.tc-chess-badge{padding:8px;font-size:9px}.tc-chess-heading{gap:8px}.tc-chess-sidebar{grid-template-columns:1fr}.tc-chess-settings,.tc-chess-sidebar>.tc-chess-primary,.tc-chess-controls{grid-column:1/-1}.tc-chess-promotion{padding:15px 10px 9px}.tc-chess-promotion h3{margin-bottom:12px;font-size:19px}.tc-chess-file,.tc-chess-rank{font-size:8px}.tc-chess-check-label{font-size:6px}.tc-chess-piece{stroke-width:2.1px}.tc-chess-player strong{font-size:12px}}@media (prefers-reduced-motion:reduce){.tc-chess *{transition:none!important;animation:none!important}}