:root{color-scheme:dark;--bg:#0a101c;--panel:#131e30;--panel2:#17253b;--line:#293b54;--text:#eaf3ff;--muted:#8da1bb;--accent:#66e3b0;--cell:#65e6b4;--board:#0b1524}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}body.light{color-scheme:light;--bg:#f2f6fb;--panel:#fff;--panel2:#f0f6fa;--line:#d8e3ec;--text:#182d42;--muted:#62778a;--accent:#067e64;--cell:#0b9d7c;--board:#eaf1f6}header{border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:18px max(24px,calc((100vw - 1400px)/2));gap:12px}.brand,.headright{display:flex;align-items:center;gap:15px}.brand strong{letter-spacing:.16em;font-size:16px}.brand small{display:block;color:var(--muted);font-size:11px;margin-top:4px}.logo{display:grid;place-items:center;width:44px;height:44px;background:#123f39;color:#7df8c2;border-radius:12px;font-size:27px}.status{font-size:12px;color:var(--accent)}main{max-width:1400px;margin:auto;padding:32px 24px}.intro{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:28px}.eyebrow{color:var(--accent);font-size:11px;letter-spacing:.18em;font-weight:800}h1{font-size:clamp(30px,3.3vw,52px);line-height:1.12;letter-spacing:-.04em;margin:14px 0}h1 em{font-style:normal;color:var(--accent)}.intro p:not(.eyebrow){color:var(--muted)}.stats{display:flex;gap:10px}.stats div{min-width:120px;padding:15px;background:var(--panel);border:1px solid var(--line);border-radius:12px}.stats small{display:block;color:var(--muted);font-size:10px;letter-spacing:.06em}.stats strong{display:block;font-size:28px;margin-top:5px;font-variant-numeric:tabular-nums}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:18px}.boardpanel,.panel,.rules{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden}.boardhead{padding:17px 19px;display:flex;justify-content:space-between;gap:8px;align-items:center}.boardhead .muted{font-size:12px}.live-dot{display:inline-block;background:var(--accent);width:8px;height:8px;border-radius:50%;margin-right:8px}.canvaswrap{padding:0 15px}canvas{display:block;width:100%;height:540px;background:var(--board);border:1px solid var(--line);border-radius:9px;touch-action:none;cursor:crosshair}.toolbar{padding:15px;display:flex;gap:8px;flex-wrap:wrap}button{cursor:pointer;background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:9px;padding:11px 14px;font-weight:650;font-size:13px}button:hover{border-color:var(--accent)}button.primary{background:var(--accent);color:#071b19;border-color:transparent}button.selected{border-color:var(--accent);color:var(--accent)}aside{display:flex;flex-direction:column;gap:14px}.panel{padding:20px}.panel h2,.rules h2{font-size:16px;margin:0 0 18px}.panel label:not(.check){display:flex;justify-content:space-between;font-size:12px;margin-top:14px}.panel output{color:var(--accent)}input[type=range]{width:100%;accent-color:var(--accent);margin:10px 0}.check{display:flex;gap:9px;align-items:center;font-size:12px;margin-top:12px}.check input{accent-color:var(--accent)}.muted{color:var(--muted);font-size:12px;line-height:1.6}.patterns{display:grid;grid-template-columns:1fr 1fr;gap:8px}.patterns button{text-align:left;padding:11px 9px;font-size:12px}.wide{width:100%;margin-top:10px}.rules{margin-top:22px;padding:24px}.rulegrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.rulegrid div{display:flex;flex-direction:column;gap:7px}.rulegrid b{color:var(--accent);font-size:12px}.rulegrid p{color:var(--muted);font-size:12px;line-height:1.6;margin:0}footer{text-align:center;padding:26px;color:var(--muted);font-size:12px}@media(max-width:1050px){.workspace{grid-template-columns:1fr}aside{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.intro{align-items:start;flex-direction:column}.stats{width:100%}.stats div{flex:1}}@media(max-width:650px){main{padding:20px 12px}header{padding:14px}.boardhead{align-items:start;flex-direction:column}.stats{gap:5px}.stats div{min-width:0;padding:9px}.stats small{font-size:8px}.stats strong{font-size:22px}aside{display:flex}.rulegrid{grid-template-columns:1fr 1fr}canvas{height:450px}.toolbar button{flex:1}.headright{gap:6px}.status{font-size:10px}}