.chess-workspace{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:24px;align-items:start}.chess-panel{min-width:0;overflow:hidden;background:var(--panel);border:1px solid var(--line);border-radius:20px}.ch-heading{padding:22px;display:flex;align-items:center;gap:10px}.ch-heading h2{font-size:19px;margin:7px 0 0}.ch-heading #ch-status{margin-left:auto;color:var(--lime);font-size:9px;letter-spacing:.6px;white-space:nowrap}.ch-heading .icon-button{width:28px;height:28px;border:0}.ch-ribbon{display:flex;gap:17px;padding:13px 22px;background:#182620;border-block:1px solid var(--line);font-size:9px;letter-spacing:.6px;color:#a8c0ad}.ch-ribbon strong{margin-left:auto;color:#e6ff85;font-weight:500}.ch-board-wrap{padding:18px;background:radial-gradient(ellipse at center,#405448,#21342d);}.ch-board{position:relative;aspect-ratio:1;width:100%;--ch-motion:220ms;isolation:isolate}.ch-grid,#ch-pieces,#ch-lines{position:absolute;inset:0;width:100%;height:100%}.ch-grid{display:grid;grid-template-columns:repeat(14,1fr);grid-template-rows:repeat(14,1fr);filter:drop-shadow(0 5px 2px #0c211a55)}.ch-square{position:relative;box-shadow:inset 0 0 0 .5px #29493630}.ch-light{background:#e6e5cd}.ch-dark{background:#7d9981}.ch-square small{position:absolute;top:1px;left:2px;font-size:7px;color:#294c3c99;z-index:1}.ch-square.ch-from{box-shadow:inset 0 0 0 2px #e5cf64;background:#bacb80}.ch-square.ch-to{box-shadow:inset 0 0 0 2px #e6ff85;background:#bdd476}.ch-square.ch-check{background:#bd665b;box-shadow:inset 0 0 0 2px #ffd5ba}.ch-square.ch-capture:after{content:'';position:absolute;inset:3px;border:2px solid #fff0c4;border-radius:50%;animation:ch-capture .7s ease-out both;z-index:4}.ch-piece{position:absolute;transform:translate(-50%,-50%);width:calc(100% / 14);height:calc(100% / 14);transition:left var(--ch-motion) ease-in-out,top var(--ch-motion) ease-in-out;z-index:3;display:grid;place-items:center;pointer-events:none;filter:drop-shadow(0 2px 1px #172a2377);color:var(--army)}.ch-piece>span{display:block;font-family:'Arial Unicode MS','DejaVu Sans',serif;font-size:clamp(18px,3.5vw,43px);line-height:1;-webkit-text-stroke:.6px #283d2f;text-shadow:0 1px 0 #f9f2db66}.ch-king{z-index:4}.ch-king img{width:120%;height:120%;object-fit:contain;position:absolute;top:-8%;left:-10%}.ch-king b{position:absolute;top:-20%;left:50%;transform:translateX(-50%);font-size:clamp(8px,1.4vw,15px);line-height:1;color:#ffe8a5;text-shadow:0 1px 2px #172a23}.ch-checked img{animation:ch-check .9s infinite alternate}.ch-seat{position:absolute;width:20.7%;height:20.7%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;background:#14251d60;border:1px solid #cfdfb51b;border-radius:9px;color:var(--army);overflow:hidden}.ch-seat>span{font-size:7px;letter-spacing:1.2px;color:#adc0ac}.ch-seat img{width:39%;height:39%;object-fit:contain}.ch-seat strong{font-size:clamp(7px,1.05vw,13px);font-weight:500;max-width:93%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ch-seat small{font-size:8px;color:#b5c7b4}.ch-south{bottom:0;right:0}.ch-west{bottom:0;left:0}.ch-north{top:0;left:0}.ch-east{top:0;right:0}.ch-seat-turn{border-color:var(--army);background:#314b3466}.ch-seat-check small{color:#ffb198;font-weight:bold}#ch-pieces{pointer-events:none}#ch-lines{z-index:2;pointer-events:none;opacity:.8}.ch-metrics{display:flex;align-items:center;gap:28px;padding:18px 23px;border-bottom:1px solid var(--line)}.ch-metrics>div{display:flex;flex-direction:column;gap:4px}.ch-metrics span{font-size:8px;letter-spacing:1px;color:var(--muted)}.ch-metrics strong{font-size:24px;font-weight:500;font-variant-numeric:tabular-nums}.ch-metrics .ch-live-note{margin-left:auto;font-size:10px;letter-spacing:0;color:#bfd5a8}.ch-announcement{padding:18px 23px;min-height:70px;font-size:13px;line-height:1.6;color:#d8e7d8;margin:0}.ch-sidebar{display:flex;flex-direction:column;gap:17px}.ch-controls,.ch-fair,.ch-log-panel,.ch-rules{padding:21px;border:1px solid var(--line);border-radius:18px;background:var(--panel)}.ch-turn{display:flex;gap:10px;align-items:center;margin-bottom:22px}.ch-turn>img{width:48px;height:48px;background:#384534;border-radius:12px;object-fit:contain}.ch-turn>div{min-width:0}.ch-turn h3{font-size:15px;margin:6px 0 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:145px}.ch-turn #ch-turn-label{font-size:9px;letter-spacing:.7px;color:var(--muted)}.ch-bot-label{margin-left:auto;background:#e6ff8512;border:1px solid #e6ff8533;color:var(--lime);border-radius:5px;padding:4px;font-size:8px}.ch-controls .start-button{width:100%;justify-content:center;min-height:48px}.ch-speed-label{margin-top:18px;display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:12px}.ch-speed-label select{font:inherit;color:#e1edda;background:#15241b;border:1px solid #465b41;border-radius:7px;padding:8px}.ch-secondary{display:flex;gap:9px;margin-top:12px}.ch-secondary button{flex:1;background:#ffffff04;border:1px solid #becba52c;color:#bdcbb1;border-radius:7px;font-size:11px;padding:9px 5px}.ch-secondary button:hover{border-color:#e6ff8599;color:#e6ff85}.ch-secondary button:disabled{opacity:.35;cursor:default}.ch-fair{background:linear-gradient(135deg,#263529,#1c2522)}.ch-fair-badge{font-size:8px;letter-spacing:1.2px;color:#d9f496}.ch-fair h3{font-size:19px;line-height:1.4;font-weight:500;margin:10px 0 12px}.ch-fair p,.ch-rules p{font-size:11px;color:#a8bca6;line-height:1.8;margin:10px 0}.ch-fair summary{color:#d6e9b7;font-size:11px;cursor:pointer;margin-top:14px}.ch-rules h3{font-size:13px;font-weight:500;margin:0}.ch-log-panel h3{font-size:13px}.ch-log-panel .section-label{align-items:center}.ch-log-panel .section-label>span{font-size:7px;letter-spacing:.5px}#ch-log p{padding:9px 0;border-bottom:1px solid #b9c9aa15;font-size:10px;line-height:1.6;color:#a8bda5;margin:0}#ch-log p.ch-log-check{color:#edbe91}#ch-log p.ch-log-capture{color:#d0dfa8}#ch-log .ch-log-empty{border:0;color:#7f9580}#ch-board[aria-busy=true]{opacity:.4}.chess-panel:fullscreen{background:#16271e;overflow:auto;padding:15px;max-width:none}.chess-panel:fullscreen .ch-board-wrap{max-width:calc(100vh - 240px);margin:auto}.chess-panel:fullscreen .ch-piece>span{font-size:clamp(20px,4.3vh,56px)}@keyframes ch-check{to{filter:drop-shadow(0 0 6px #ff6c47)}}@keyframes ch-capture{to{transform:scale(1.8);opacity:0}}@media(min-width:1400px){.ch-piece>span{font-size:clamp(28px,3.3vw,56px)}}@media(max-width:1050px){.chess-workspace{grid-template-columns:minmax(0,1fr) 300px;gap:17px}.ch-heading{padding:20px}.ch-heading h2{font-size:16px}.ch-ribbon{gap:10px;font-size:8px}.ch-piece>span{font-size:3.45vw}.header nav{gap:18px}}@media(max-width:740px){.chess-workspace{grid-template-columns:1fr}.ch-board-wrap{padding:10px}.ch-heading{padding:18px 15px}.ch-heading h2{font-size:17px}.ch-heading #ch-status{font-size:8px;max-width:80px;white-space:normal;text-align:right}.ch-ribbon{padding:12px 15px;font-size:7px;gap:9px}.ch-piece>span{font-size:6.35vw}.ch-seat strong{font-size:8px}.ch-seat>span{font-size:6px}.ch-seat small{font-size:7px}.ch-metrics{padding:16px;gap:23px}.ch-metrics strong{font-size:22px}.ch-metrics .ch-live-note{font-size:9px}.ch-announcement{padding:15px;font-size:12px;min-height:65px}.ch-sidebar{gap:13px}.ch-controls{position:sticky;bottom:10px;z-index:6;box-shadow:0 5px 25px #0005}.ch-controls .ch-turn{margin-bottom:12px}.ch-fair h3{font-size:20px}.ch-rules p,.ch-fair p{font-size:12px}.header nav{gap:17px}.ch-square small{font-size:5px}.ch-controls .ch-secondary button{font-size:12px}}@media(prefers-reduced-motion:reduce){.ch-piece{transition:none}.ch-checked img,.ch-square.ch-capture:after{animation:none}}