:root{color:#192d29;background:#f6f4ee;font-family:system-ui,sans-serif}*{box-sizing:border-box}body{margin:0}button,select{font:inherit}button{cursor:pointer;touch-action:manipulation}button:disabled{cursor:default}button:focus-visible,select:focus-visible,a:focus-visible,.history:focus-visible{outline-offset:3px;z-index:1;outline:3px solid #bd7728}.app{max-width:1080px;margin:0 auto;padding:36px 28px 20px}.page-header{justify-content:space-between;align-items:center;margin-bottom:28px;display:flex}.eyebrow{letter-spacing:.12em;color:#60746b;font-size:11px;font-weight:700}h1{letter-spacing:-1.5px;margin:6px 0 0;font-family:Georgia,serif;font-size:40px}.title-dot{color:#b77c3b}.local-badge{border:1px solid #d3dbd2;border-radius:30px;padding:8px 14px;font-size:12px}.game-layout{grid-template-columns:minmax(0,640px) minmax(260px,310px);align-items:start;gap:32px;display:grid}.play-area{min-width:0}.board{border-radius:5px;overflow:hidden;box-shadow:0 8px 24px #192d2917}.player-row{align-items:center;gap:10px;padding:12px 2px;display:flex}.avatar{color:#f5f2df;background:#243d34;border-radius:8px;place-items:center;width:39px;height:39px;font-size:29px;display:grid}.avatar.human{color:#243d34;background:#e4e7de}.player-row strong{font-size:14px;display:block}.player-row div>span{color:#667970;margin-top:3px;font-size:11px;display:block}.activity{color:#687b70;margin-left:auto;font-size:12px}.board-help{text-align:center;color:#69796e;margin:10px 0;font-size:12px}.sidebar{gap:16px;padding-top:12px;display:grid}.panel{background:#fffdf8;border:1px solid #e0e3d8;border-radius:12px;padding:20px}.status-panel{background:#e9eee5}h2{margin:0 0 15px;font-size:16px}.status-panel h2{margin:10px 0 8px;font-size:20px}.status-panel p{color:#53665c;margin:0;font-size:12px;line-height:1.7}.status-panel .error{color:#a33428;margin-top:8px}.controls label{margin:14px 0 7px;font-size:12px;font-weight:600;display:block}select{color:#243d34;background:#fffdf8;border:1px solid #ccd5c9;border-radius:6px;width:100%;padding:10px}.primary{color:#fff;background:#294c3e;border:0;border-radius:6px;width:100%;margin-top:18px;padding:12px;font-weight:600}.primary:hover{background:#365e4e}.hint{color:#718073;margin:10px 0 0;font-size:11px;line-height:1.7}.section-heading{justify-content:space-between;align-items:center;gap:8px;margin-bottom:10px;display:flex}.section-heading h2{margin:0}.text-button{color:#416551;background:0 0;border:0;padding:8px 0;font-size:12px}.text-button:disabled{opacity:.45}.history{max-height:190px;overflow-y:auto}table{border-collapse:collapse;text-align:left;font-variant-numeric:tabular-nums;width:100%;font-size:13px}th,td{padding:7px 8px}th{color:#788276;font-weight:400}thead{font-size:11px}tbody tr:nth-child(odd){background:#f0f2eb}.empty-history{color:#849083;margin:18px 0;font-size:12px}footer{color:#768276;text-align:center;margin-top:32px;font-size:11px;line-height:1.9}footer a{color:#61786a}dialog{color:#243d34;background:#fffdf8;border:1px solid #ccd5c9;border-radius:12px;max-width:calc(100% - 32px);padding:26px}dialog::backdrop{background:#132b2377}dialog p{font-size:14px}.promotion-options{gap:8px;margin:20px 0 8px;display:flex}.promotion-options button{background:#e9eee5;border:1px solid #b9c8b9;border-radius:6px;min-width:54px;padding:12px}@media (width<=760px){.app{padding:20px 14px}.page-header{margin-bottom:15px}h1{font-size:34px}.local-badge{padding:6px 10px;font-size:10px}.game-layout{grid-template-columns:1fr;gap:10px}.board{width:100%!important}.sidebar{padding:0}.panel{padding:18px}.history{max-height:220px}}.board{aspect-ratio:1;grid-template-columns:repeat(8,1fr);width:min(100%,640px);display:grid}.square{aspect-ratio:1;border:0;border-radius:0;place-items:center;padding:0;display:grid;position:relative}.light{background:#e9e5d4}.dark{background:#71958a}.piece{font-family:DejaVu Sans,Segoe UI Symbol,serif;font-size:clamp(27px,7vw,60px);line-height:1}.white-piece{color:#fffdf2;-webkit-text-stroke:1px #283e37;text-shadow:0 2px 2px #0004}.black-piece{color:#20362f;-webkit-text-stroke:1px #162821}.coordinate{color:#20362f;font-size:11px;font-weight:700;position:absolute}.rank{top:3px;left:4px}.file{bottom:2px;right:4px}.last-move{background:#c0c985}.selected{box-shadow:inset 0 0 0 4px #d29c34}.check{background:#d97c6b}.target{background:#20362f44;border-radius:50%;width:25%;height:25%;position:absolute}.capture-target{border:4px solid #20362f66;border-radius:50%;position:absolute;inset:3px}.square:disabled{opacity:1}