*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #1a1d24;--bg-secondary: #242831;--bg-tertiary: #2d323e;--text-primary: #e8eaed;--text-secondary: #9aa0a6;--accent-primary: #4a90e2;--accent-hover: #5ba0f2;--accent-danger: #e74c3c;--accent-danger-hover: #c0392b;--border-color: #3a3f4b;--success-color: #27ae60;--warning-color: #f39c12}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden}.container{max-width:1800px;margin:0 auto;padding:20px}header,.problem-selector{text-align:center;margin-bottom:30px;padding:20px;background:var(--bg-secondary);border-radius:12px;border:1px solid var(--border-color)}header h1{font-size:2.5rem;margin-bottom:8px;background:linear-gradient(135deg,var(--accent-primary),#9b59b6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.subtitle{color:var(--text-secondary);font-size:1.1rem}.problem-selector{margin-bottom:20px}.problem-description{margin-top:15px;padding:12px;background:var(--bg-tertiary);border-left:3px solid var(--accent-primary);border-radius:4px;font-size:.95rem;line-height:1.5}.problem-description strong{color:var(--accent-primary)}.main-layout{display:grid;grid-template-columns:400px 1fr;gap:20px;align-items:start}@media(max-width:1200px){.main-layout{grid-template-columns:1fr}}.card{background:var(--bg-secondary);border-radius:12px;padding:20px;border:1px solid var(--border-color);margin-bottom:20px}.card h2{font-size:1.3rem;margin-bottom:15px;color:var(--text-primary)}.card h3{font-size:1.1rem;margin:15px 0 10px;color:var(--text-secondary)}.control-group{margin-bottom:15px}.control-group label{display:block;margin-bottom:5px;color:var(--text-secondary);font-size:.9rem}.control-group input{width:100%;padding:8px 12px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:6px;color:var(--text-primary);font-size:.95rem}.control-group input:focus{outline:none;border-color:var(--accent-primary)}.control-group select{width:100%;padding:8px 12px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:6px;color:var(--text-primary);font-size:.95rem;cursor:pointer}.control-group select:focus{outline:none;border-color:var(--accent-primary)}.btn{padding:10px 20px;border:none;border-radius:6px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s;margin-right:10px}.btn-primary{background:var(--accent-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-1px)}.btn-danger{background:var(--accent-danger);color:#fff}.btn-danger:hover:not(:disabled){background:var(--accent-danger-hover)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--border-color)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-close{background:none;border:none;color:var(--text-secondary);font-size:1.5rem;cursor:pointer;padding:0;width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:all .2s}.btn-close:hover{background:var(--bg-tertiary);color:var(--text-primary)}.metrics-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.metric{background:var(--bg-tertiary);padding:12px;border-radius:6px;border:1px solid var(--border-color)}.metric-label{display:block;font-size:.85rem;color:var(--text-secondary);margin-bottom:4px}.metric-value{display:block;font-size:1.2rem;font-weight:600;color:var(--accent-primary)}.log-container{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:6px;padding:15px;height:300px;overflow-y:auto;font-family:Courier New,monospace;font-size:.85rem}.log-entry{padding:4px 0;color:var(--text-secondary)}.log-entry.success{color:var(--success-color)}.log-entry.warning{color:var(--warning-color)}.log-entry.error{color:var(--accent-danger)}.viz-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.model-viz{min-height:400px}.placeholder{text-align:center;color:var(--text-secondary);padding:60px 20px;font-size:1.1rem}.blocks-strip{display:flex;gap:15px;flex-wrap:wrap;padding:10px}.block-card{background:var(--bg-tertiary);border:2px solid var(--border-color);border-radius:8px;padding:15px;min-width:180px;cursor:pointer;transition:all .2s}.block-card:hover{border-color:var(--accent-primary);transform:translateY(-2px);box-shadow:0 4px 12px #4a90e233}.block-card.selected{border-color:var(--accent-primary);background:linear-gradient(135deg,var(--bg-tertiary),rgba(74,144,226,.1))}.block-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.block-index{font-size:.85rem;color:var(--text-secondary);font-weight:600}.block-info{margin-bottom:8px}.block-info-label{font-size:.8rem;color:var(--text-secondary)}.block-info-value{font-size:1rem;color:var(--text-primary);font-weight:600;margin-left:5px}.readout-preview{margin-top:8px;padding-top:8px;border-top:1px solid var(--border-color)}.readout-weights{font-size:.75rem;color:var(--text-secondary);font-family:Courier New,monospace;word-break:break-all}.block-details{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--bg-secondary);border:2px solid var(--accent-primary);border-radius:12px;padding:0;width:100%;max-width:600px;max-height:90vh;overflow:auto;z-index:1000;box-shadow:0 10px 40px #00000080}.block-details.hidden{display:none}.block-details-header{position:sticky;top:0;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);padding:20px;display:flex;justify-content:space-between;align-items:center;z-index:10}.block-details-content{padding:20px}.heatmap-section{margin:10px;float:right;text-align:center}.heatmap-section:nth-child(2n){float:left}@media(max-width:570px){.heatmap-section,.heatmap-section:nth-child(2n){float:none}}.heatmap-section h4{color:var(--text-primary);margin-bottom:10px;font-size:1rem}.heatmap-canvas{border:1px solid var(--border-color);border-radius:4px;background:var(--bg-tertiary)}.bar-chart-section{margin-bottom:30px}.bar-chart{display:flex;align-items:flex-end;gap:4px;height:120px;padding:10px;background:var(--bg-tertiary);border-radius:4px;border:1px solid var(--border-color)}.bar{flex:1;background:linear-gradient(to top,var(--accent-primary),var(--accent-hover));border-radius:2px 2px 0 0;min-height:2px;position:relative;transition:all .2s}.bar.negative{background:linear-gradient(to top,var(--accent-danger),#e67e73)}.bar:hover{opacity:.8}.bar-value{position:absolute;top:-20px;left:50%;transform:translate(-50%);font-size:.7rem;color:var(--text-secondary);white-space:nowrap;display:none}.bar:hover .bar-value{display:block}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-tertiary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#4a5161}.hidden{display:none!important}