:root{--bg:#0f1115;--panel:#181b22;--line:#2a2f3a;--text:#e7e9ee;--muted:#8b93a3;--accent:#3e7bfa;--target:#2fbf71;--last:#f2b134;--check:#e5484d;--wood:#e9cc93;--wood-white:#b9cbe4;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;font-family:system-ui,-apple-system,Hiragino Sans,Yu Gothic,sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0}a{color:#8fb3ff}button{font:inherit;color:var(--text);border:1px solid var(--line);cursor:pointer;background:#232835;border-radius:6px;padding:6px 10px}button:hover:not(:disabled){border-color:#4a5366}button:disabled{opacity:.45;cursor:default}button.primary{background:var(--accent);border-color:var(--accent)}button.ghost{background:0 0}select,input[type=range]{width:100%}select{font:inherit;color:var(--text);border:1px solid var(--line);background:#232835;border-radius:6px;padding:6px}label{color:var(--muted);margin:8px 0;font-size:13px;display:block}label.check{align-items:center;gap:6px;display:flex}.muted{color:var(--muted);font-size:12px}.row{flex-wrap:wrap;gap:6px;margin:6px 0;display:flex}.app{grid-template-rows:auto 1fr;grid-template-columns:260px minmax(0,1fr) 260px;gap:0;height:100vh;display:grid}header{border-bottom:1px solid var(--line);background:var(--panel);grid-column:1/-1;align-items:baseline;gap:12px;padding:10px 16px;display:flex}header h1{margin:0;font-size:18px}.subtitle{color:var(--muted);font-size:13px}.status{margin-left:auto;font-weight:600}.panel{background:var(--panel);padding:8px 14px;overflow-y:auto}.panel.left{border-right:1px solid var(--line)}.panel.right{border-left:1px solid var(--line)}.panel h2{text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:14px 0 4px;font-size:13px}.model-source,.model-library{overflow-wrap:anywhere}.model-library input{max-width:100%}.panel fieldset{border:1px solid var(--line);min-width:0;margin:6px 0;padding:6px}.panel fieldset select{max-width:100%}main{flex-direction:column;gap:8px;min-height:0;padding:8px;display:flex;overflow:auto}.message{background:#3a2424;border:1px solid #6b3434;border-radius:6px;padding:6px 10px}.views{flex:1;gap:8px;min-height:420px;display:grid}.views-both{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr)}.views-3d,.views-2d{grid-template-columns:1fr}.board3d{border:1px solid var(--line);border-radius:8px;min-height:420px;position:relative;overflow:hidden}.board3d-loading{z-index:1;pointer-events:none;position:absolute;top:8px;left:12px}.board2d{flex-direction:column;justify-content:center;align-items:center;display:flex}.board2d-title{margin-bottom:4px;font-weight:600}.board2d-grid{grid-template-columns:20px repeat(9,minmax(28px,46px));gap:2px;width:min(100%,460px);display:grid}.axis-label{color:var(--muted);justify-content:center;align-items:center;font-size:11px;display:flex}.cell{aspect-ratio:1;background:#2d2618;border:1px solid #4a3f28;border-radius:3px;justify-content:center;align-items:center;padding:0;font-family:Hiragino Mincho ProN,Yu Mincho,serif;font-size:clamp(12px,2.2vw,20px);display:flex}.cell.black .piece,.cell.white .piece{color:#1d1d1f;border-radius:3px;justify-content:center;align-items:center;width:82%;height:82%;font-weight:700;display:inline-flex}.cell.black .piece{background:var(--wood)}.cell.white .piece{background:var(--wood-white);transform:rotate(180deg)}.cell.promoted .piece{color:#c0262d}.cell.target{box-shadow:inset 0 0 0 3px var(--target);background:#1f3a2b}.cell.selected{box-shadow:inset 0 0 0 3px var(--accent)}.cell.last{background:#4d3d15}.cell.check{box-shadow:inset 0 0 0 3px var(--check)}.hands{flex-wrap:wrap;align-items:center;gap:6px;min-height:36px;display:flex}.hands-title{color:var(--muted);font-size:13px}.hand{font-family:Hiragino Mincho ProN,Yu Mincho,serif}.hand small{margin-left:2px;font-size:11px}.hand.selected{background:var(--accent)}.move-list{max-height:46vh;margin:0;padding:0;font-size:13px;list-style:none;overflow-y:auto}.move-list button{text-align:left;background:0 0;border:none;width:100%;padding:3px 6px}.move-list li.current button{background:#2a3550}.move-list li.future button{color:var(--muted)}.dialog-backdrop{background:#0000008c;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.dialog{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px 22px}.fatal{padding:24px}@media (max-width:1100px){.app{grid-template-rows:auto auto auto auto;grid-template-columns:1fr;height:auto}.views-both{grid-template-columns:1fr}.panel.left,.panel.right{border:none}}