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var(--primary-color)}.settings-grid{display:flex;flex-direction:column;gap:var(--spacing-lg);overflow-y:auto;flex:1;padding-right:var(--spacing-xs)}.settings-grid::-webkit-scrollbar{width:8px}.settings-grid::-webkit-scrollbar-track{background:transparent}.settings-grid::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.settings-grid::-webkit-scrollbar-thumb:hover{background:var(--primary-color)}.setting-item{display:flex;flex-direction:column;gap:var(--spacing-xs)}.setting-label{color:var(--text-secondary);font-size:var(--font-size-sm);font-weight:500}.setting-input{background:var(--overlay-background);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);padding:var(--spacing-sm);color:var(--text-color);font-size:var(--font-size-sm);transition:all .2s}.setting-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px #f7931a33}.setting-input:hover{border-color:var(--primary-color)}.setting-description{color:var(--text-secondary);font-size:.75rem;font-style:italic}.setting-warning{color:#ff9800;font-size:.75rem;font-weight:600;margin-top:.25rem;display:block}.settings-modal-footer{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-lg);border-top:1px solid var(--border-color);background:var(--panel-background);flex-shrink:0}.settings-button-group{display:flex;gap:var(--spacing-sm)}.settings-button{padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--border-radius-sm);font-size:var(--font-size-sm);font-weight:600;cursor:pointer;transition:all .2s;border:1px solid var(--border-color)}.settings-button-primary{background:var(--primary-color);color:var(--background-color);border-color:var(--primary-color)}.settings-button-primary:hover{background:#ff9800;border-color:#ff9800;transform:translateY(-1px);box-shadow:0 2px 8px #f7931a4d}.settings-button-secondary{background:var(--overlay-background);color:var(--text-color)}.settings-button-secondary:hover{background:var(--border-color);transform:translateY(-1px)}.settings-modal .react-tabs{display:flex;flex-direction:column;flex:1;overflow:hidden}.settings-modal .react-tabs__tab-list{display:flex;margin:0;padding:0 var(--spacing-lg);border-bottom:2px solid var(--border-color);background:var(--panel-background);list-style:none}.settings-modal .react-tabs__tab{padding:var(--spacing-md) var(--spacing-lg);cursor:pointer;color:var(--text-secondary);font-weight:600;font-size:var(--font-size-md);border:none;border-bottom:3px solid transparent;background:none;transition:all .2s;margin-bottom:-2px}.settings-modal .react-tabs__tab:hover{color:var(--text-color);background:rgba(255,255,255,.05)}.settings-modal .react-tabs__tab--selected{color:var(--primary-color);border-bottom-color:var(--primary-color);background:none}.settings-modal .react-tabs__tab-panel{display:none;flex:1;overflow:hidden}.settings-modal .react-tabs__tab-panel--selected{display:flex;flex-direction:column}.settings-modal .react-tabs__tab-panel--selected .settings-modal-content{position:relative;top:0;left:0;right:0;bottom:0;flex:1;overflow-x:auto;overflow-y:hidden}.epm-demo-page{padding:2rem;max-width:800px;margin:0 auto;text-align:center}.epm-demo-page h1{color:var(--text-primary);margin-bottom:.5rem}.epm-demo-page p{color:var(--text-secondary);margin-bottom:2rem}.epm-stats{margin-top:2rem;padding:1rem;background:var(--background-secondary);border-radius:var(--border-radius-md)}.epm-stats p{margin:.5rem 0;color:var(--text-primary)}:root{--primary-color: #627eea;--primary-color-transparent: rgba(98, 126, 234, .15);--secondary-color: #2c2c2c;--accent-color: #8c8dfc;--text-color: #ffffff;--text-secondary: #aaaaaa;--success-color: #4caf50;--error-color: #f44336;--warning-color: #ff9800;--background-color: #1a1a1a;--panel-background: rgba(30, 30, 30, .95);--overlay-background: rgba(0, 0, 0, .7);--hover-background: rgba(98, 126, 234, .2);--border-color: rgba(255, 255, 255, .1);--border-accent: var(--primary-color);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .2);--shadow-md: 0 4px 6px rgba(0, 0, 0, .2);--shadow-lg: 0 5px 15px rgba(0, 0, 0, .3);--shadow-hover: 0 3px 8px rgba(98, 126, 234, .3);--font-family-base: system-ui, -apple-system, sans-serif;--font-family-mono: monospace;--font-size-xs: .7rem;--font-size-sm: .8rem;--font-size-base: 1rem;--font-size-lg: 1.2rem;--font-size-xl: 1.5rem;--font-size-2xl: 2rem;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 20px;--spacing-xl: 25px;--border-radius-sm: 3px;--border-radius-md: 4px;--border-radius-lg: 8px;--max-width-container: 2800px;--transition-speed: .2s;--transition-timing: ease;--z-modal: 1000;--z-tooltip: 100;--z-header: 50}.app-container{width:100%;max-width:var(--max-width-container);margin:0 auto;padding:var(--spacing-lg);min-height:100vh;display:flex;flex-direction:column;background-color:var(--background-color);color:var(--text-color);font-family:var(--font-family-base)}.app-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg);padding-bottom:var(--spacing-md);border-bottom:2px solid var(--border-accent);z-index:var(--z-header)}.app-header h1{color:var(--primary-color);margin:0;font-size:var(--font-size-2xl)}.mining-control{background-color:var(--primary-color);color:var(--background-color);border:none;padding:var(--spacing-sm) var(--spacing-lg);font-size:var(--font-size-base);border-radius:var(--border-radius-md);font-weight:700;transition:all var(--transition-speed) var(--transition-timing);box-shadow:var(--shadow-sm)}.mining-control:hover{background-color:var(--primary-color);filter:brightness(90%);box-shadow:var(--shadow-hover)}.mining-control.mining{background-color:var(--error-color)}.controls-container{display:flex;gap:var(--spacing-md);align-items:center}.control-button{color:#fff;border:none;padding:var(--spacing-sm) var(--spacing-lg);font-size:var(--font-size-base);border-radius:var(--border-radius-md);font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow-sm);display:flex;align-items:center;gap:var(--spacing-sm);min-width:180px}.control-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}.control-button:active{transform:translateY(0)}.control-button.active{background:linear-gradient(135deg,var(--success-color),#27ae60)}.control-button.inactive{background:linear-gradient(135deg,#95a5a6,#7f8c8d)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spinning{animation:spin 2s linear infinite}.nodes-container{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-xl);width:100%;flex:1}.app-footer{margin-top:var(--spacing-lg);text-align:center;padding:var(--spacing-md) 0;border-top:1px solid var(--border-color);color:var(--text-secondary)}@media (max-width: 768px){.nodes-container{grid-template-columns:1fr}.app-header{flex-direction:column;align-items:flex-start;gap:var(--spacing-md)}}.unified-header-banner{background:linear-gradient(135deg,var(--panel-background) 0%,rgba(102,126,234,.05) 100%);border-bottom:2px solid var(--primary-color);box-shadow:0 4px 12px #00000026;padding:.9rem 2rem;margin-bottom:1.5rem;display:flex;align-items:center;gap:2rem;flex-wrap:wrap}.simulator-title{margin:0;font-size:1.75rem;font-weight:700;background:linear-gradient(135deg,var(--primary-color) 0%,#9b59b6 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.5px;white-space:nowrap}.legend-divider{width:2px;height:32px;background:linear-gradient(180deg,transparent 0%,rgba(102,126,234,.3) 50%,transparent 100%);flex-shrink:0}.legend-items-inline{display:flex;gap:1rem;flex-wrap:wrap;align-items:center;flex:1;justify-content:space-between}.legend-item-compact{display:flex;align-items:center;gap:.5rem;cursor:help;transition:all .2s ease;padding:.35rem .75rem;border-radius:6px;background:rgba(255,255,255,.03)}.legend-item-compact:hover{transform:translateY(-2px);background:rgba(102,126,234,.08);box-shadow:0 2px 8px #0000001a}.legend-item-compact span{font-size:.85rem;color:var(--text-primary);font-weight:500;white-space:nowrap}.legend-settings-button{background:rgba(255,255,255,.05);border:1px solid var(--border-color);border-radius:6px;padding:.5rem .75rem;font-size:1.2rem;cursor:pointer;transition:all .2s ease;color:var(--text-color);margin-left:auto}.legend-settings-button:hover{background:rgba(102,126,234,.15);border-color:var(--primary-color);transform:translateY(-2px);box-shadow:0 2px 8px #0000001a}.legend-square{width:20px;height:20px;border-radius:3px;border-width:3px;border-style:solid;background:var(--overlay-background);flex-shrink:0}.finalized-square{border-color:#6a1b9a;box-shadow:0 0 6px #6a1b9a99}.ghost-square{border-color:#ff9800;border-width:2px}.fork-square{border-color:#444;border-width:2px;position:relative}.fork-square:after{content:"⑂";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:12px;color:#666}.canonical-square{border-color:#667eea}.empty-slot-square{border-color:#888;border-width:2px;border-style:dashed;background:transparent}.legend-text-two-line{display:flex;flex-direction:column;line-height:1.2}.legend-line-1{font-size:.85rem;font-weight:600;color:var(--text-primary)}.legend-line-2{font-size:.75rem;font-weight:500;color:var(--text-secondary);opacity:.9}:root{--primary-color: #627eea;--secondary-color: #4d4d4d;--background-color: #1a1a1a;--text-color: #ffffff;--panel-background: #2d2d2d;--success-color: #4caf50;--error-color: #f44336}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--background-color);color:var(--text-color)}*{box-sizing:border-box}button{cursor:pointer}