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var(--border-strong);border-radius:var(--radius-sm);width:28px;height:28px;color:var(--fg);cursor:pointer;background:0 0;justify-content:center;align-items:center;transition:background .1s,color .1s,border-color .1s;display:inline-flex}.ctrl:hover{background:var(--brand);color:var(--brand-fg);border-color:var(--brand)}.ctrl:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.ctrl .icon-play{display:none}#chess-play-btn[data-state=playing] .icon-pause{display:block}#chess-play-btn[data-state=playing] .icon-play,#chess-play-btn[data-state=paused] .icon-pause{display:none}#chess-play-btn[data-state=paused] .icon-play{display:block}#chess-play-btn[data-state=finished] .icon-pause{display:none}#chess-play-btn[data-state=finished] .icon-play{display:block}#chess-play-btn[data-state=finished]{background:var(--brand);color:var(--brand-fg);border-color:var(--brand)}.ctrl-status{color:var(--fg-muted);font-size:.7rem;font-family:var(--font-display);letter-spacing:.02em;margin-left:auto;font-style:italic}.chess-hero__moves{--grid-line:var(--ref-neutral-800);border:1.5px solid var(--ref-neutral-800);border-radius:var(--radius-lg);background:var(--bg-soft);flex-direction:column;flex:auto;width:100%;min-height:0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;display:flex;overflow:hidden}[data-theme=dark] .chess-hero__moves{--grid-line:var(--ref-neutral-200);border-color:var(--ref-neutral-200)}@media (width<=640px){.chess-hero__moves{flex:none;height:220px}}.mhd,.mr{grid-template-columns:2.6rem minmax(0,1fr) minmax(0,1fr) 2.6rem;display:grid}.mhd{background:var(--bg-deep);border-bottom:1.5px solid var(--grid-line);flex-shrink:0;padding-right:10px}.mhd>span{text-transform:uppercase;letter-spacing:.06em;color:var(--fg);padding:.32rem .45rem;font-size:.62rem;font-weight:700}.mhd>span:first-child{text-align:center}.mhd>span:nth-child(2),.mhd>span:nth-child(3){text-align:left}.mhd>span:nth-child(4){text-align:center}.mhd>span+span,.mr>.mc+.mc{border-left:1px solid var(--grid-line)}.mbd{scrollbar-width:thin;scrollbar-color:var(--brand) var(--bg-deep);flex-direction:column;flex:1;justify-content:flex-start;display:flex;overflow-y:scroll}.mbd::-webkit-scrollbar{width:10px}.mbd::-webkit-scrollbar-track{background:var(--bg-deep);border-left:1px solid var(--grid-line)}.mbd::-webkit-scrollbar-thumb{background:var(--brand);border:2px solid var(--bg-deep);border-radius:5px}.mbd::-webkit-scrollbar-thumb:hover{background:var(--brand-hover)}.mr{border-top:1px solid var(--grid-line);flex-shrink:0}.mr:first-child{border-top:none}.mr:nth-child(2n){background:#0000000a}[data-theme=dark] .mr:nth-child(2n){background:#ffffff0a}.mc-num{text-align:center;color:var(--fg-muted);padding-inline:.2rem;font-size:.66rem;font-weight:600}.mc-white,.mc-black{text-align:left}.mc-note{text-align:center;padding-inline:.15rem;font-size:.72rem;font-weight:700}.mft{background:var(--brand);color:var(--brand-fg);border-top:1.5px solid var(--grid-line);text-transform:uppercase;letter-spacing:.07em;flex-shrink:0;justify-content:center;align-items:center;gap:.45rem;padding:.42rem .5rem;font-size:.68rem;font-weight:700;display:none}.mft.is-revealed{display:flex}.mft-icon{font-size:.95rem;line-height:1}.mft-notation{letter-spacing:.02em;background:#ffffff2e;border-radius:3px;padding:.08rem .4rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.mc{color:var(--fg-soft);white-space:nowrap;text-overflow:ellipsis;cursor:default;min-width:0;padding:.22rem .45rem;font-size:.72rem;line-height:1.55;transition:background 80ms,color 80ms;overflow:hidden}.mph{background:0 0}.mc.jp{background:var(--brand);color:var(--brand-fg);font-weight:600}.mc-note.jp{color:var(--brand-fg)!important}.mc-note.ann-brilliant{color:#0e7490}.mc-note.ann-great{color:#1e3a8a}.mc-note.ann-good{color:#2563eb}.mc-note.ann-inaccuracy{color:#a16207}.mc-note.ann-mistake{color:#c2410c}.mc-note.ann-blunder{color:#dc2626}.mc-note.ann-miss{color:#be123c}.chess-hero__caption{text-align:center;border-radius:var(--radius-lg);color:#f5e6d3;font-family:var(--font-display);font-size:var(--fs-base);background:linear-gradient(#000000d9 0%,#0000008c 65%,#0000 100%);flex-direction:column;align-items:center;gap:.45rem;margin:.75rem 0 0;padding:1rem 1rem 1.1rem;display:flex}.chess-hero__caption .players{flex-wrap:wrap;justify-content:center;align-items:center;gap:.65rem;font-style:normal;display:inline-flex}.chess-hero__caption .player{align-items:center;gap:.45rem;display:inline-flex}.chess-hero__caption .player-name{font-weight:700;font-size:var(--fs-lg);color:#fff;letter-spacing:.005em}.chess-hero__caption .player-color{text-transform:uppercase;letter-spacing:.09em;color:#f5e6d3;border-radius:var(--radius-sm);border:1px solid #f5e6d380;padding:.1rem .45rem;font-size:.7rem;font-weight:700}.chess-hero__caption .vs{color:#f5e6d3a6;font-size:.85rem;font-style:italic;font-weight:600}.chess-hero__caption .kn{width:28px;height:28px;box-shadow:var(--shadow-sm);border-radius:5px;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.chess-hero__caption .kn img{width:22px;height:22px}.chess-hero__caption .kn-w{background:#2b1a08;border:1px solid #1a0f04}.chess-hero__caption .kn-b{background:#f5e6d3;border:1px solid #c8a878}.chess-hero__caption .meta{font-size:var(--fs-sm);color:#f5e6d3c7;font-style:italic}