:root{font-family:system-ui,-apple-system,"Yu Gothic",sans-serif;color:#254439;background:#f5f5ef;font-synthesis:none;line-height:1.65}*{box-sizing:border-box}body{margin:0}main{width:min(100% - 28px,1100px);margin:auto;padding:24px 0}header{text-align:center}.eyebrow{font-size:12px;color:#638273;margin:0}h1{font-size:clamp(21px,5vw,30px);margin:5px 0 12px}h2{font-size:16px;margin:0}.rules{font-size:13px;color:#5b7067}.progress{display:flex;justify-content:center;align-items:center;gap:20px;margin:16px 0}.progress strong{font-size:23px}.progress span{font-size:14px}.colors{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:18px 0}.color-button{border-top:5px solid var(--piece-color);padding:7px 2px}.color-button span{display:block;font-size:11px}.color-button[aria-pressed=true]{background:#e5efe8;outline:2px solid #345c4d;outline-offset:1px}.layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(320px,1fr);gap:22px;align-items:start}.board{display:grid;grid-template-columns:repeat(20,1fr);width:100%;background:#c8d2c9;border:3px solid #b9cbc0;border-radius:5px;overflow:hidden;gap:1px;touch-action:manipulation}.cell{position:relative;aspect-ratio:1;min-width:0;min-height:0;border:0;border-radius:0;background:#fffef9;padding:0;color:var(--piece-color,#658b6c);font-size:clamp(10px,2.5vw,17px);line-height:1}.cell.start{background:#f2eedf}.cell.occupied{background:var(--piece-color);color:#fff;box-shadow:inset 0 0 0 1px #ffffff50}.cell.legal::after{content:"";position:absolute;width:5px;height:5px;top:50%;left:50%;transform:translate(-50%,-50%);background:#345c4d;border-radius:50%}.cell.preview-ok{background:var(--piece-color);opacity:.7;box-shadow:inset 0 0 0 2px #183e32}.cell.preview-no{background:#f4c8c3;box-shadow:inset 0 0 0 2px #a4312b}.cell.anchor::before{content:'●';position:absolute;inset:0;display:grid;place-items:center;color:#172d27;font-size:10px}.cell.occupied{border-width:0;border-style:solid;border-color:#25443999}.message{min-height:50px;font-size:13px;padding:8px 2px;margin:8px 0;color:#276958}.message.error{color:#a0392d}button{font:inherit;font-size:13px;font-weight:650;min-height:44px;border:1px solid #ccd8cf;border-radius:8px;background:white;color:#345c4d;padding:9px 10px;cursor:pointer;touch-action:manipulation}button:hover:not(:disabled){filter:brightness(.96)}button:disabled{opacity:.4;cursor:default}button:focus-visible{outline:3px solid #b7791f;outline-offset:2px}.primary{background:#276958;border-color:#276958;color:white}.pieces-panel{background:white;border:1px solid #dce4dc;padding:16px;border-radius:12px}.panel-title{display:flex;align-items:center;justify-content:space-between}.panel-title span{font-size:12px}.selection{display:flex;align-items:center;gap:20px;min-height:90px;padding:8px}.selection p{font-size:13px}.selection .mini{--unit:15px}.pieces{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.piece{min-width:0;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:7px 2px;min-height:80px}.piece[aria-pressed=true]{border:2px solid #276958;background:#eef7f0}.piece:disabled{opacity:.5;background:#edf0eb}.piece-name{font-size:10px}.mini{--unit:10px;display:grid;gap:1px;grid-template-columns:repeat(var(--w),var(--unit));grid-template-rows:repeat(var(--h),var(--unit));min-height:21px;align-content:center}.mini-cell{background:var(--piece-color);border-radius:1px;display:grid;place-items:center;color:#fff;font-size:7px;line-height:1}.tools{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.placement-tools{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.nudge{display:flex;gap:4px}.nudge button{min-width:44px}#place{flex:1;white-space:nowrap}.history-tools{display:flex;gap:8px}.history-tools button{flex:1}.hint{font-size:11px;color:#5b7067;line-height:1.9}.clear{background:#e7f4e9;border:1px solid #a8cbb4;border-radius:12px;text-align:center;padding:18px;margin-top:14px}.clear strong{font-size:30px}.clear p{font-size:13px}[hidden]{display:none!important}footer{text-align:center;color:#6e7d72;font-size:11px;margin-top:22px}@media(max-width:760px){main{max-width:560px;padding-top:16px}.layout{grid-template-columns:minmax(0,1fr);gap:16px}.pieces{grid-template-columns:repeat(5,minmax(0,1fr))}.mini{--unit:9px}.colors{gap:6px}.pieces-panel{padding:12px}.rules{font-size:12px}}@media(max-width:360px){.pieces{grid-template-columns:repeat(4,minmax(0,1fr))}}

#game-title{touch-action:manipulation;user-select:none;-webkit-user-select:none}
#admin-tools{margin:0 0 10px}#admin-tools button{font-size:12px}
.cell:disabled{opacity:1}.color-button:disabled{opacity:1}