:root{color-scheme:dark;--bg:#101b17;--text:#eef2df;--muted:#a4b3a3;--accent:#d2f76e}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,sans-serif}main{max-width:740px;margin:auto;padding:28px 24px}header,footer,.toolbar,.footer{display:flex;align-items:center;justify-content:space-between}header{padding-bottom:28px;border-bottom:1px solid #344238;font-size:12px;letter-spacing:2px}a{color:var(--text);text-decoration:none;font-weight:800}header a span{font-weight:400;color:var(--muted);margin-left:8px}.edition{color:var(--muted)}.intro{margin:42px 0 28px}.eyebrow,.label,.speed{font-size:10px;letter-spacing:2px;font-weight:700}.eyebrow{color:var(--accent)}h1{font-size:clamp(36px,7vw,62px);letter-spacing:-3px;margin:12px 0}h1 span{color:var(--accent)}.intro>p:last-child{color:var(--muted);font-size:14px}.game{background:#19271f;border:1px solid #3c4c3c;border-radius:18px;padding:18px;box-shadow:0 24px 70px #0003}.toolbar{padding:2px 4px 18px;gap:12px}.label{display:block;color:var(--muted);font-size:9px}strong{display:block;font-size:30px;font-variant-numeric:tabular-nums;margin-top:4px}.speed{margin-left:auto;color:var(--muted)}select{display:block;background:#24352a;color:var(--text);padding:8px;border:1px solid #52634c;border-radius:7px;margin-top:8px;font:inherit;letter-spacing:0}.board-wrap{position:relative;aspect-ratio:1;background:#0c1711;border-radius:8px;overflow:hidden}canvas{display:block;width:100%;height:100%;touch-action:none}#overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;background:#0c1711d9;text-align:center;padding:20px}#overlay[hidden]{display:none}#message{font-size:clamp(22px,5vw,34px);font-weight:750;letter-spacing:-1px;margin:0 0 10px}#hint{color:var(--muted);font-size:14px}button{cursor:pointer;font:inherit;font-weight:700;border-radius:8px;border:1px solid #52634c;background:#24352a;color:var(--text);min-height:44px;padding:10px 18px}button:hover{background:#3b5037}button:focus-visible,select:focus-visible,canvas:focus-visible{outline:3px solid var(--accent);outline-offset:3px}button:disabled{opacity:.4;cursor:default}#start{background:var(--accent);color:#15200d;border:0;margin-top:24px;padding:14px 30px}.footer{gap:12px;padding-top:12px}.footer p{font-size:12px;color:var(--muted);margin:0}.controls{text-align:center;margin-top:22px}.controls button{width:52px;font-size:22px;padding:4px;margin:3px}.instructions{text-align:center;color:var(--muted);font-size:12px;line-height:1.9}footer{font-size:9px;letter-spacing:1px;color:var(--muted);margin-top:32px;padding-top:22px;border-top:1px solid #344238;gap:20px}@media(max-width:440px){main{padding:20px 14px}.intro{margin-top:28px}.game{padding:12px}.label{letter-spacing:1px}.edition{font-size:9px}footer{line-height:1.7}}