@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Playfair+Display:ital,wght@0,500;0,600;1,500&display=swap');
:root{--bg:#f5f3ec;--ink:#223b32;--muted:#7c8579;--green:#2d5141;--line:#dedfd3;--light:#ebe8d6;--dark:#7f9a80}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Manrope,system-ui,sans-serif;font-size:14px}button,select{font:inherit}button{cursor:pointer;color:inherit;border:1px solid var(--line);background:transparent;border-radius:8px;padding:11px 14px;transition:background .16s,transform .16s}button:hover{background:#e6e9dc}button:focus-visible,select:focus-visible{outline:3px solid #c3954d;outline-offset:3px}button:disabled{opacity:.4;cursor:default}header{max-width:1280px;margin:auto;padding:28px 48px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink);font-weight:800;letter-spacing:2px;font-size:14px}.brand span{font:36px Georgia}.edition{font-size:10px;letter-spacing:2px;color:var(--muted)}.quiet{border:0;padding:8px;color:var(--muted);font-size:11px}main{max-width:1184px;margin:auto;padding:40px 48px 20px}.intro{margin-bottom:34px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:800;color:#7c8977}h1{font-family:'Playfair Display',Georgia,serif;font-size:46px;line-height:1.15;font-weight:500;letter-spacing:-1px;margin:15px 0}h1 em{font-weight:500;color:#638369}p{color:var(--muted);line-height:1.7;margin:0}.layout{display:grid;grid-template-columns:minmax(300px,620px) minmax(260px,320px);gap:48px;align-items:start}.player{display:flex;align-items:center;gap:12px;margin:0 0 16px;min-height:48px}.avatar{width:42px;height:42px;border-radius:50%;background:#273e32;color:#f1edda;font:30px Georgia;display:grid;place-items:center}.avatar.light{background:#e5e4d6;color:#2c4538}.player strong{font-size:13px}.captured{font:17px Georgia;letter-spacing:1px;min-height:15px;color:#65775f}.player-label{margin-left:auto;font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:20px;padding:5px 12px}.board-frame{padding:12px;background:#304a3c;border-radius:9px;box-shadow:0 20px 40px #24382a20}.board{display:grid;grid-template-columns:repeat(8,1fr);aspect-ratio:1;overflow:hidden;border-radius:2px}.square{aspect-ratio:1;border:0;border-radius:0;padding:0;position:relative;display:grid;place-items:center;background:var(--light);touch-action:manipulation}.square.dark{background:var(--dark)}.square:hover{background:#ddd8bc}.square.dark:hover{background:#708c71}.piece{font-family:'Arial Unicode MS','Apple Symbols','DejaVu Sans',serif;font-size:clamp(30px,4.5vw,56px);line-height:1;z-index:2;user-select:none;filter:drop-shadow(0 2px 1px #0002)}.piece.white{color:#fffdf1;-webkit-text-stroke:1.1px #3d4937;text-shadow:0 2px 2px #263c3544}.piece.black{color:#22392f;-webkit-text-stroke:.5px #162b21}.square.last:before,.square.selected:before,.square.check:before{content:'';position:absolute;inset:0;background:#e9ce5160}.square.selected:before{background:#d6b54b99;box-shadow:inset 0 0 0 3px #d3b349}.square.check:before{background:#cb6959aa}.square.legal:after{content:'';position:absolute;width:23%;height:23%;border-radius:50%;background:#263e3540;z-index:3;pointer-events:none}.square.capture:after{width:88%;height:88%;background:transparent;border:5px solid #243c3540}.coord{position:absolute;font-size:10px;font-weight:700;color:#4a6650;z-index:4}.dark .coord{color:#edf0dc}.rank{top:4px;left:5px}.file{bottom:3px;right:5px}.bottom{margin:18px 0 12px}.board-actions{display:flex;gap:10px;justify-content:space-between}.board-actions button{font-size:12px;border:0;color:#687865;padding:9px 0}.panel{border:1px solid var(--line);background:#faf9f3;border-radius:12px;padding:22px;margin-bottom:16px}.status-panel{background:#e8eddf;border-color:#d8dfcd}.status-line{display:flex;align-items:center;gap:10px;margin:12px 0 7px}h2{font-size:20px;letter-spacing:-.5px;margin:0}.dot{height:8px;width:8px;background:#65865d;border-radius:50%;box-shadow:0 0 0 4px #65865d18}.thinking{animation:pulse 1s infinite}@keyframes pulse{50%{opacity:.35}}.status-panel p{font-size:12px;min-height:40px}.turns{display:flex;justify-content:space-between;border-top:1px solid #d1dbc7;margin-top:16px;padding-top:13px;font-size:10px;color:#7b8970}h3{font-size:13px;margin:0 0 18px}.settings label{display:block;font-size:10px;color:var(--muted);margin:16px 0 8px}.segmented{display:flex;background:#edeee5;border-radius:7px;padding:4px;gap:4px}.segmented button{flex:1;border:0;font-size:11px;padding:9px 6px}.segmented .active{background:#fffdf5;box-shadow:0 1px 4px #223b3215;font-weight:700}select{width:100%;background:#faf9f3;color:var(--ink);border:1px solid var(--line);border-radius:7px;padding:11px;font-size:11px}.primary{background:var(--green);color:#fffdf1;border:0;font-weight:600}.primary:hover{background:#3b6550}.settings>.primary{width:100%;margin-top:20px;display:flex;justify-content:space-between}.settings-note{text-align:center;font-size:10px;margin-top:10px}.history-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.history-heading h3{margin:0}.history-heading button{font-size:9px}.history-columns,.history-row{display:grid;grid-template-columns:30px 1fr 1fr;gap:10px;padding:9px 0;font-size:11px}.history-columns{color:var(--muted);font-size:9px;border-bottom:1px solid var(--line)}.history{max-height:158px;overflow:auto;scrollbar-width:thin}.history-row:nth-child(even){background:#efefe5}.history-row span:first-child{color:var(--muted);padding-left:4px}.empty{color:#9ba08f;text-align:center;padding:24px 0;line-height:1.8;font-size:11px}footer{display:flex;justify-content:space-between;gap:15px;color:#929988;font-size:10px;border-top:1px solid var(--line);padding-top:20px;margin-top:32px}dialog{border:1px solid var(--line);border-radius:16px;padding:30px;background:var(--bg);color:var(--ink);max-width:420px;width:90%}dialog::backdrop{background:#14282088;backdrop-filter:blur(4px)}dialog p{margin:12px 0 24px}#promotion-options{display:flex;gap:12px}#promotion-options button{font-size:42px;flex:1;padding:8px}.dialog-actions{display:flex;gap:10px}.dialog-actions button{flex:1;font-size:12px}@media(min-width:1000px){.intro{display:flex;flex-wrap:wrap;align-items:center;column-gap:55px}.intro .eyebrow{width:100%}.intro h1{margin-bottom:0}.intro p{margin-top:15px}}@media(max-width:800px){header{padding:18px 22px}.edition{display:none}main{padding:28px 22px}.layout{gap:22px;grid-template-columns:minmax(280px,1fr) 260px}h1{font-size:37px}.piece{font-size:clamp(25px,5vw,48px)}.panel{padding:16px}.board-frame{padding:8px}}@media(max-width:620px){.layout{grid-template-columns:1fr}.intro{margin-bottom:25px}.intro h1{font-size:36px}.intro p{font-size:12px}.desktop{display:none}.piece{font-size:clamp(29px,9vw,54px)}aside{display:grid;grid-template-columns:1fr}.status-panel{order:-1}.play-area{min-width:0}.panel{padding:20px}.history{max-height:180px}footer{flex-direction:column;gap:8px}.board-actions button{font-size:11px}main{padding:25px 16px}.intro .eyebrow{font-size:8px}.coord{font-size:9px}}
/* Motion and game review */
.board{position:relative;isolation:isolate}.piece-layer{position:absolute;inset:0;pointer-events:none;z-index:5}.board-piece{position:absolute;width:12.5%;height:12.5%;display:grid;place-items:center;transition:left .34s cubic-bezier(.22,.72,.22,1),top .34s cubic-bezier(.22,.72,.22,1),opacity .2s;will-change:left,top}.board-piece.vanishing{opacity:0;transition:opacity .2s}.hint-arrow{position:absolute;inset:0;width:100%;height:100%;z-index:6;pointer-events:none;opacity:.85}.square:focus-visible{outline-offset:-4px;z-index:7}.analysis-panel{background:#f0f0e5}.analysis-panel .history-heading{margin-bottom:10px}.engine-label{font-size:9px;color:#7a856f;border:1px solid #d4d9c7;border-radius:20px;padding:4px 8px}.analysis-panel>p{font-size:11px}.analysis-actions{display:flex;gap:8px;margin:14px 0 0;flex-wrap:wrap}.analysis-actions button{font-size:11px;flex:1}.analysis-actions [hidden]{display:none}.evaluation{display:flex;gap:12px;align-items:baseline;margin-top:20px}.evaluation strong{font-size:28px;letter-spacing:-1px}.evaluation span{font-size:10px;color:var(--muted)}.eval-track{height:9px;border-radius:6px;overflow:hidden;background:#304438;margin:10px 0}.eval-track>div{height:100%;width:50%;background:#fffdf3;transition:width .35s}.eval-note{font-size:9px}.eval-chart{height:80px;margin-top:16px;overflow:hidden;border-radius:6px;background:#e3e7da}.eval-chart svg{width:100%;height:100%;display:block}.review-navigation{display:flex;align-items:center;gap:4px;margin:12px 0}.review-navigation button{border:0;padding:7px;font-size:16px}.review-navigation span{flex:1;text-align:center;font-size:10px}.move-verdict{font-size:12px;font-weight:700;padding:10px 0;border-top:1px solid var(--line)}.move-verdict small{display:block;font-size:10px;font-weight:400;color:var(--muted);margin-top:6px;line-height:1.6}.best-line{padding:12px;background:#e3e9d9;border-radius:7px}.best-line>span{display:block;font-size:9px;color:var(--muted)}.best-line strong{display:block;font-size:16px;margin:5px 0}.best-line p{font-size:10px;overflow-wrap:anywhere}.review-summary{display:flex;gap:10px;margin:12px 0;font-size:10px}.review-summary>div{flex:1;background:#f9f8f0;padding:9px;border-radius:6px;line-height:1.8}.analysis-disclaimer{font-size:9px;line-height:1.7}.history-row button{border:0;padding:5px 7px;font-size:11px;text-align:left;display:flex;gap:5px;align-items:center}.history-row .review-active{background:#dce6cf;font-weight:800}.move-tag{font-size:9px;margin-left:auto;font-weight:800}.best,.good{color:#4a8154}.inaccuracy{color:#b58c27}.mistake{color:#c2752d}.blunder{color:#b25148}.history-row{padding:3px 0;align-items:center}.history{max-height:210px}.analysis-progress{color:#65865d}.board-actions #undo:disabled{opacity:.4}@media(prefers-reduced-motion:reduce){.board-piece,.eval-track>div{transition:none!important}.dot.thinking{animation:none}}
@media(min-width:621px){.play-area{position:sticky;top:20px}}.square:disabled{opacity:1}.history-row button:disabled{opacity:1;cursor:default}.history-row button:disabled:hover{background:transparent}