html,body,#root{margin:0;padding:0}.chess-status{color:var(--muted);letter-spacing:.04em;margin:6px 0 18px;font-size:13px}.chess-board-wrap{justify-content:center;margin:8px 0 36px;display:flex}.chessboard{border:1px solid var(--line);box-shadow:0 1px 0 var(--line), 0 18px 40px -28px #1a1a1a40;background:var(--bg);flex-direction:column;display:flex}.row{display:flex}.square{cursor:pointer;-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;width:58px;height:58px;transition:box-shadow 80ms;display:flex;position:relative}.square.light{background:#ece1c7}.square.dark{background:#3a3631}.square.selected{box-shadow:inset 0 0 0 2px var(--accent)}.square.legal .dot{pointer-events:none;background:#1a1a1a38;border-radius:50%;width:22%;height:22%;position:absolute}.square.dark.legal .dot{background:#ece1c759}.square.legal img+.dot{border:2px solid var(--accent);background:0 0;width:86%;height:86%}.square.dark.legal img+.dot{border-color:var(--accent)}.square img{pointer-events:none;object-fit:contain;width:86%;height:86%}@media (width<=560px){.square{width:44px;height:44px}}.chess-panel{margin-top:28px}.chess-panel h2{color:var(--ink);letter-spacing:.02em;margin:0 0 12px;font-size:13px;font-weight:600}.chess-toggles{flex-direction:column;gap:6px;margin-bottom:18px;display:flex}.chess-toggles label{color:var(--ink);cursor:pointer;align-items:center;gap:10px;width:fit-content;font-size:14px;display:inline-flex}.chess-toggles input[type=checkbox]{appearance:none;border:1px solid var(--line);cursor:pointer;background:0 0;border-radius:2px;width:14px;height:14px;transition:border-color 80ms,background 80ms;position:relative}.chess-toggles input[type=checkbox]:hover{border-color:var(--muted)}.chess-toggles input[type=checkbox]:checked{background:var(--accent);border-color:var(--accent)}.chess-toggles input[type=checkbox]:checked:after{content:"";border:1.5px solid #f5f1e8;border-width:0 1.5px 1.5px 0;width:4px;height:8px;position:absolute;top:0;left:3px;transform:rotate(45deg)}.chess-slider{margin-bottom:20px}.chess-slider-label{color:var(--ink);justify-content:space-between;margin-bottom:6px;font-size:13px;display:flex}.chess-slider input[type=range]{appearance:none;background:var(--line);outline:none;width:100%;height:1px}.chess-slider input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);cursor:pointer;border:0;border-radius:50%;width:12px;height:12px;margin-top:-1px}.chess-slider input[type=range]::-moz-range-thumb{background:var(--accent);cursor:pointer;border:0;border-radius:50%;width:12px;height:12px}.chess-actions{gap:12px;display:flex}.chess-actions button{border:1px solid var(--line);color:var(--ink);cursor:pointer;background:0 0;border-radius:2px;padding:6px 14px;font-family:inherit;font-size:13px;transition:border-color 80ms,color 80ms}.chess-actions button:hover{border-color:var(--accent);color:var(--accent)}.chess-search{grid-template-columns:72px 1fr;gap:2px 18px;margin:0;font-size:13px;display:grid}.chess-search dt{color:var(--muted)}.chess-search dd{color:var(--ink);margin:0}.chess-panel .movelog{background:0 0;border:0;max-height:none;padding:0}.movelog h2{display:none}.movelog ol{font-family:var(--mono);counter-reset:moveno;margin:0;padding:0;font-size:13px;list-style:none}.movelog li{counter-increment:moveno;border-bottom:1px dashed #0000;grid-template-columns:32px 1fr 1fr;gap:10px;padding:2px 0;display:grid}.movelog li:before{content:counter(moveno) ".";color:var(--faint)}.movelog li .white{color:var(--ink)}.movelog li .black{color:var(--muted)}:root{--bg:#f5f1e8;--ink:#1a1a1a;--muted:#737063;--faint:#a8a398;--line:#ddd6c4;--accent:#b5533c;--accent-soft:#e9d9c9;--mono:"iA Writer Mono", "JetBrains Mono", "Berkeley Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--ink);font-family:var(--mono);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility;margin:0;padding:0;font-size:15px;line-height:1.75}::selection{background:var(--accent-soft)}a{color:var(--ink);text-decoration:underline;-webkit-text-decoration-color:var(--faint);text-decoration-color:var(--faint);text-underline-offset:3px;text-decoration-thickness:1px;transition:color 80ms,text-decoration-color 80ms}a:hover{color:var(--accent);-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent)}.site{max-width:680px;margin:0 auto;padding:56px 28px 96px}.site-header{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:24px;margin-bottom:40px;display:flex}.brand{letter-spacing:.2px;color:var(--ink);font-size:15px;font-weight:600;text-decoration:none}.brand:hover{color:var(--accent);text-decoration:none}.brand .dot{color:var(--accent)}.nav{color:var(--muted);gap:18px;font-size:13px;display:flex}.nav a{color:var(--muted);text-decoration:none}.nav a:hover{color:var(--accent)}.nav a.active{color:var(--ink)}.rule{background:var(--line);border:0;height:1px;margin:0 0 32px}.prompt{color:var(--accent);-webkit-user-select:none;user-select:none;margin-right:6px}h1,h2,h3{letter-spacing:-.01em;font-weight:600;line-height:1.3}h1{margin:0 0 10px;font-size:22px}h2{color:var(--ink);margin:40px 0 12px;font-size:15px}h2 .tilde{color:var(--accent);margin-right:8px}h3{color:var(--muted);margin:24px 0 8px;font-size:14px;font-weight:500}.section-head{justify-content:space-between;align-items:baseline;gap:16px;margin:40px 0 12px;display:flex}.section-head h2{margin:0}.section-more{color:var(--muted);letter-spacing:.04em;white-space:nowrap;font-size:12px;text-decoration:none}.section-more:hover{color:var(--accent);text-decoration:none}p{margin:0 0 14px}.lede{color:var(--ink)}.muted{color:var(--muted)}.faint{color:var(--faint)}.small{font-size:13px}.index{margin:0;padding:0;list-style:none}.index li{grid-template-columns:16px 1fr auto;align-items:baseline;gap:10px;padding:4px 0;display:grid}.index li .bullet{color:var(--faint)}.index li .date{color:var(--muted);letter-spacing:.02em;font-size:12px}.index li .note{color:var(--muted);font-size:13px}.index li a{text-decoration:none}.index li a:hover{color:var(--accent)}.site-footer{border-top:1px solid var(--line);color:var(--faint);flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:64px;padding-top:20px;font-size:12px;display:flex}.site-footer a{color:var(--faint);text-decoration:none}.site-footer a:hover{color:var(--accent)}.kv{grid-template-columns:84px 1fr;gap:4px 18px;font-size:14px;display:grid}.kv dt{color:var(--muted)}.kv dd{margin:0}.back{color:var(--muted);margin-bottom:24px;font-size:13px;text-decoration:none;display:inline-block}.back:hover{color:var(--accent)}.post-meta{color:var(--faint);letter-spacing:.04em;margin-bottom:28px;font-size:12px}.post{margin-top:8px}.post h1{letter-spacing:-.015em;margin:0 0 6px;font-size:24px}.post p{color:var(--ink);margin:0 0 18px;line-height:1.85}.post em{color:var(--accent);font-size:.98em;font-style:italic}.post-back{margin-top:32px;display:inline-block}.post-break{text-align:center;color:var(--faint);letter-spacing:.9em;-webkit-user-select:none;user-select:none;margin:36px 0 28px;font-size:14px}.post-list{margin:0 0 24px;padding:0 0 0 22px;line-height:1.85}.post-list li{color:var(--ink);margin-bottom:12px}.post-list li::marker{color:var(--faint)}.post-letter{border-left:2px solid var(--accent-soft);color:var(--muted);margin:32px 0 8px;padding:8px 0 8px 18px;font-style:normal}.post-letter p{margin:0 0 14px;line-height:1.85}.post-letter p:last-child{margin-bottom:0}.doc{color:var(--ink);margin-top:8px}.doc h1{letter-spacing:-.015em;margin:0 0 14px;font-size:26px;line-height:1.25}.doc h2{color:var(--ink);letter-spacing:-.005em;margin:44px 0 14px;font-size:17px;font-weight:600}.doc h2:before{content:"~ ";color:var(--accent);font-weight:600}.doc h3{color:var(--ink);margin:28px 0 10px;font-size:14px;font-weight:600}.doc p{margin:0 0 16px;line-height:1.85}.doc strong{color:var(--ink);font-weight:600}.doc em{color:var(--accent);font-style:italic}.doc hr{background:var(--line);border:0;height:1px;margin:44px 0}.doc ul,.doc ol{margin:0 0 16px;padding-left:22px;line-height:1.8}.doc li{margin-bottom:6px}.doc li::marker{color:var(--faint)}.doc a{color:var(--ink);-webkit-text-decoration-color:var(--accent-soft);text-decoration-color:var(--accent-soft)}.doc a:hover{color:var(--accent);-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent)}.doc :not(pre)>code{font-family:var(--mono);color:var(--ink);background:#ede5d2;border-radius:2px;padding:1px 6px;font-size:13px}.doc pre{color:var(--ink);background:#ede5d2;border-radius:3px;margin:0 0 22px;padding:14px 18px;font-size:13px;line-height:1.6;overflow-x:auto}.doc pre code{font-size:13px;font-family:var(--mono);background:0 0;padding:0}.doc table{border-collapse:collapse;width:100%;margin:18px 0 28px;font-size:12.5px;display:block;overflow-x:auto}.doc table th,.doc table td{text-align:left;border-bottom:1px dashed var(--line);vertical-align:top;padding:7px 12px;line-height:1.5}.doc table th{color:var(--muted);border-bottom:1px solid var(--line);white-space:nowrap;font-weight:600}.doc table tr:last-child td{border-bottom:0}.doc blockquote{border-left:2px solid var(--accent-soft);color:var(--muted);margin:18px 0;padding:2px 0 2px 16px}.chess-doc-link{margin-top:-6px;margin-bottom:18px}blockquote{border-left:2px solid var(--accent-soft);color:var(--muted);margin:18px 0;padding:2px 0 2px 16px}pre{font-family:var(--mono);color:#2a2a2a;background:#efe9da;border-radius:3px;padding:14px 16px;font-size:13px;overflow-x:auto}.poem{white-space:pre-wrap;font-family:var(--mono);color:var(--ink);background:0 0;border-radius:0;margin:12px 0 28px;padding:0;font-size:15px;line-height:1.95;overflow:visible}.poem-post h1{color:var(--ink);font-style:italic}.sys-row{cursor:pointer;border-bottom:1px dashed var(--line);color:var(--ink);-webkit-user-select:none;user-select:none;grid-template-columns:14px 1fr auto;align-items:baseline;gap:10px;padding:6px 0;transition:color 80ms;display:grid}.sys-row:last-child{border-bottom:0}.sys-row:hover,.sys-row:hover .sys-metric{color:var(--accent)}.sys-dot{color:var(--faint);font-size:11px}.sys-name{font-size:14px}.sys-metric{color:var(--muted);letter-spacing:.04em;white-space:nowrap;font-size:11px;transition:color 80ms}.btn-nav{cursor:pointer;font-family:var(--mono);color:var(--muted);background:0 0;border:none;padding:0;font-size:13px;transition:color 80ms}.btn-nav:hover{color:var(--accent)}@media (width<=520px){.site{padding:36px 20px 64px}.site-header{margin-bottom:28px}.nav{gap:14px;font-size:12px}}