.ipy-chess{--light:#ecdcc2;--dark:#79543b;--accent:#f2c46d;--panel:#202b37;box-sizing:border-box;position:relative;max-width:1100px;margin:24px auto;padding:26px;color:#f5f7fa;background:linear-gradient(140deg,#192632,#101720);border:1px solid #40505d;border-radius:22px;font:16px/1.5 Arial,sans-serif;box-shadow:0 16px 40px #0004;color-scheme:dark}.ipy-chess *{box-sizing:border-box}.ipy-chess [hidden]{display:none!important}.ipy-chess h2,.ipy-chess h3,.ipy-chess p{color:inherit}.ipy-chess .ic-header h2{font-size:clamp(24px,3vw,36px);margin:8px 0;line-height:1.25}.ic-header p{margin:0 0 22px;color:#bac8d4!important}.ic-badge,.ic-eyebrow{font-size:12px;letter-spacing:2px;color:var(--accent)}.ic-controls{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}.ic-controls label{flex:1;min-width:145px;color:#d4dfe7;font-weight:bold;font-size:14px}.ipy-chess select{display:block;width:100%;margin-top:6px;padding:10px;border:1px solid #526475;border-radius:8px;background:#263440;color:#fff;font:inherit}.ic-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:26px}.ic-play{min-width:0}.ic-board{position:relative;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));grid-template-rows:repeat(8,minmax(0,1fr));aspect-ratio:1;isolation:isolate;border:5px solid #493829;border-radius:7px;box-shadow:0 8px 22px #0006;touch-action:pan-y;container-type:inline-size}.ipy-chess .ic-sq{position:relative;display:flex;align-items:center;justify-content:center;min-width:0;min-height:0;width:100%;height:100%;margin:0;padding:0;border:0;border-radius:0;font:inherit;cursor:pointer;box-shadow:none;background:var(--light);color:#18212a;touch-action:none}.ipy-chess .ic-sq.dark{background:var(--dark)}.ic-piece{font-family:'DejaVu Sans','Segoe UI Symbol','Arial Unicode MS',sans-serif;font-size:clamp(24px,5vw,64px);font-size:10cqw;line-height:1;pointer-events:none;z-index:2;filter:drop-shadow(0 3px 1px #0005)}.ic-piece.white{color:#fff8ea;-webkit-text-stroke:1px #2c251f;text-shadow:1px 1px #211b15,-1px -1px #211b15}.ic-piece.black{color:#16191f;-webkit-text-stroke:.6px #e6d9bf;text-shadow:0 1px #eee}.ic-sq.last:before{content:'';position:absolute;inset:0;background:#ffe45b55}.ic-sq.selected{box-shadow:inset 0 0 0 4px #fff175!important}.ic-sq.legal:after{content:'';position:absolute;width:23%;height:23%;border-radius:50%;background:#143f35a6;z-index:3;pointer-events:none}.ic-sq.capture:after{width:85%;height:85%;background:none;border:5px solid #b81525}.ic-sq.check{background:#ce3e43!important}.ipy-chess :focus-visible{outline:3px solid #64d9ff;outline-offset:3px;z-index:5}.ipy-chess .ic-sq:focus-visible{outline-offset:-4px}.ic-coord{position:absolute;font-size:clamp(9px,1vw,13px);font-weight:bold;line-height:1;pointer-events:none}.ic-rank{top:3px;left:3px}.ic-file{bottom:3px;right:3px}.dark .ic-coord{color:#fff}.ic-player{display:flex;justify-content:space-between;align-items:center;gap:8px;min-height:40px;font-weight:bold}.ic-player [data-role$="captured"]{font-size:22px;letter-spacing:-3px;line-height:1.1}.ic-status-card{display:flex;flex-direction:column;gap:10px;padding:20px;background:var(--panel);border:1px solid #475766;border-radius:12px;margin-bottom:15px}.ic-status-card strong{font-size:23px;line-height:1.25}.ic-status-card [data-role="detail"]{font-size:14px;color:#c0ced9}.ic-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.ipy-chess .ic-actions button,.ipy-chess .ic-promotion button{padding:10px 8px;border:1px solid #5b6e80;background:#293b4b;color:#fff;border-radius:8px;font:bold 14px/1.4 Arial;cursor:pointer}.ipy-chess .ic-actions button:first-child{grid-column:1/-1;background:#f2c46d;color:#1b232b;border-color:#f2c46d}.ipy-chess button:disabled{opacity:.45;cursor:default}.ipy-chess .ic-toggle{display:flex;align-items:center;gap:9px;margin:16px 0;font-size:15px}.ic-toggle input{width:20px;height:20px;accent-color:#f2c46d}.ipy-chess .ic-sidebar h3{font-size:18px;margin:20px 0 8px}.ic-sidebar h3 span{float:right;color:#f2c46d}.ic-history{margin:0;padding:8px 8px 8px 40px;max-height:200px;overflow:auto;background:#ffffff07;border-radius:8px;font:15px/1.9 monospace}.ic-history li{padding:0 5px}.ic-history li:nth-child(even){background:#ffffff08}.ic-help{font-size:13px;color:#bdcad5!important;margin:15px 0 0}.ic-promotion{position:absolute;inset:0;z-index:10;background:#070c12e8;display:flex;align-items:center;justify-content:center;padding:25px;border-radius:22px}.ic-promotion>div{padding:25px;background:#253545;border:1px solid #a4b6c6;border-radius:12px;text-align:center}.ic-promotion-options{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.ic-promotion-options button{min-width:85px}.ic-promotion-options span{display:block;font-size:40px}.ipy-chess[data-theme="ocean"]{--light:#d6e5ee;--dark:#38627e}.ipy-chess[data-theme="contrast"]{--light:#fff;--dark:#000}.ipy-chess[data-theme="contrast"] .ic-board{border-color:#fff}.ipy-chess[data-theme="contrast"] .ic-sq.legal:after{background:#00b977}.ic-board[aria-busy="true"]{border-color:var(--accent)}@media(max-width:800px){.ic-layout{grid-template-columns:minmax(0,1fr)}.ic-sidebar{display:grid;grid-template-columns:1fr 1fr;gap:12px}.ic-status-card{margin:0}.ic-sidebar h3,.ic-history,.ic-help{grid-column:1/-1}.ipy-chess .ic-toggle{margin:8px 0}.ic-history{max-height:130px}}@media(max-width:480px){.ipy-chess{padding:12px;border-radius:12px}.ic-controls{gap:8px}.ic-controls label{min-width:120px}.ic-layout{gap:12px}.ic-sidebar{display:block}.ic-status-card{margin-bottom:12px}.ic-player{font-size:14px}.ic-piece{font-size:10cqw}.ic-actions{margin-top:10px}}@media(prefers-reduced-motion:no-preference){.ipy-chess button{transition:background-color .15s,box-shadow .15s}}@media(prefers-reduced-motion:reduce){.ipy-chess *{animation:none!important;transition:none!important}}

.ipy-chess[data-theme="contrast"] .ic-piece.black{-webkit-text-stroke:1.5px #fff}.ipy-chess[data-theme="contrast"] .ic-piece.white{-webkit-text-stroke:1.5px #000}