*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #f5f5f9;--bg-secondary: #ffffff;--bg-tertiary: #eaeaf2;--text-primary: #2d2d3a;--text-secondary: #6b6b80;--accent: #5b6abf;--accent-hover: #7681d2;--border: #d4d4e0;--sidebar-width: 300px;--cell-bg: #f0f0f6;--cell-alive: #5b6abf}html,body{height:100%;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg-primary);color:var(--text-primary)}#app{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--bg-secondary);padding:20px;overflow-y:auto;border-right:1px solid var(--border);box-shadow:2px 0 12px #0000000a;display:flex;flex-direction:column;gap:12px}.sidebar h1{font-size:1.2rem;color:var(--accent);margin-bottom:8px;font-weight:600;letter-spacing:.5px}.sidebar hr{border:none;border-top:1px solid var(--border);margin:4px 0}.control-group{display:flex;flex-direction:column;gap:6px}.control-group label{font-size:.8rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}select,input[type=number],input[type=text]{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border);border-radius:6px;padding:8px 10px;font-size:.9rem;outline:none;transition:border-color .2s}select:focus,input[type=number]:focus,input[type=text]:focus{border-color:var(--accent)}select{cursor:pointer}input[type=range]{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:6px;background:var(--bg-tertiary);border-radius:3px;outline:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent);cursor:pointer;transition:background .2s}input[type=range]::-webkit-slider-thumb:hover{background:var(--accent-hover)}input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--accent);cursor:pointer;border:none}.bs-checks{display:flex;gap:2px;flex-wrap:wrap}.bs-check{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:4px;cursor:pointer;font-size:.8rem;color:var(--text-secondary);transition:all .15s;-webkit-user-select:none;user-select:none;position:relative}.bs-check input{position:absolute;opacity:0;pointer-events:none}.bs-check:has(input:checked){background:var(--accent);color:#fff;border-color:var(--accent)}.bs-check:hover{border-color:var(--accent-hover)}.playback{display:flex;gap:8px}.playback button,button{flex:1;padding:10px 0;background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border);border-radius:6px;font-size:.85rem;cursor:pointer;transition:all .15s;font-weight:500}.playback button:hover,button:hover{border-color:var(--accent);color:var(--accent)}#play-btn{background:var(--accent);color:#fff;border-color:var(--accent)}#play-btn:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff}.gen-counter{font-size:.9rem;color:var(--text-secondary);padding:8px 0}.gen-counter span{color:var(--accent);font-weight:600;font-variant-numeric:tabular-nums}.rule-display{margin:4px 0}.rule-grid{display:flex;gap:4px;flex-wrap:wrap;justify-content:center}.rule-cell{display:flex;flex-direction:column;align-items:center;gap:3px}.rule-pattern{display:flex;gap:1px}.rule-pattern span,.rule-result{width:10px;height:10px;border-radius:2px}.rule-pattern span.on,.rule-result.on{background:var(--accent)}.rule-pattern span.off,.rule-result.off{background:var(--bg-tertiary);border:1px solid var(--border)}.rule-result{width:10px;height:10px}.import-row{display:flex;gap:6px}.import-row input[type=text]{flex:1;min-width:0}.import-row button{flex:none;padding:8px 14px}input[type=text].import-error{border-color:#d94040}input[type=file]{font-size:.8rem;color:var(--text-secondary)}.custom-grid{display:grid;gap:2px;width:fit-content}.custom-grid button{width:40px;height:40px;border:1px solid var(--border);border-radius:4px;background:var(--bg-tertiary);cursor:pointer;transition:background-color .15s;padding:0}.custom-grid button.cell-alive{background:var(--accent)}.custom-grid button:hover{border-color:var(--accent)}#custom-clear-btn{margin-top:6px}input[type=color]{width:100%;height:32px;border:1px solid var(--border);border-radius:6px;padding:2px;cursor:pointer;background:var(--bg-tertiary)}.checkbox-label{display:flex;align-items:center;gap:6px;cursor:pointer}.canvas-area{flex:1;display:flex;align-items:center;justify-content:center;overflow:auto;padding:20px;background:var(--bg-primary)}canvas{border:1px solid var(--border);border-radius:4px;box-shadow:0 2px 12px #00000014}@media(max-width:768px){#app{flex-direction:column;height:auto;min-height:100vh}.sidebar{width:100%;min-width:100%;border-right:none;border-bottom:1px solid var(--border);max-height:50vh}.canvas-area{min-height:50vh}}