:root{--bg: #0f1117;--bg-surface: #1a1d27;--bg-elevated: #242734;--border: #2e3244;--text: #e1e4ed;--text-muted: #8b90a0;--text-dim: #6e7389;--accent: #5b9cf5;--accent-hover: #7ab4ff;--danger: #ef5350;--header-height: 48px;--footer-height: 32px;--sidebar-width: 240px;--detail-width: 340px;--radius: 6px;--radius-sm: 4px;--radius-lg: 8px;--radius-pill: 10px;--focus-ring: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent);--shadow-sm: 0 2px 8px rgba(0,0,0,.3);--shadow-md: 0 4px 12px rgba(0,0,0,.4);--shadow-lg: 0 8px 32px rgba(0,0,0,.4);--edge-color: #999;--node-border-light: #fff;--selected-color: #FFD600;--highlighted-edge-color: #FF5722;--path-color: #4CAF50;--hyper-route-color: #D4AA40;--success-color: #4CAF50;--causes-arrow-color: #FF5722;--caused-by-arrow-color: #42A5F5;--flow-heatmap-rgb: 91, 156, 245;--flow-active-outline: #FFD600;--bg-surface-rgb: 26, 29, 39;--z-toolbar: 20;--z-tooltip: 30;--z-loading: 50;--z-floating-panels: 900}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}*:focus-visible{outline:none;box-shadow:var(--focus-ring)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--bg);color:var(--text);height:100vh;overflow:hidden;display:flex;flex-direction:column;font-size:13px;line-height:1.5}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline;color:var(--accent-hover)}#app-header{height:var(--header-height);background:var(--bg-surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 16px;flex-shrink:0;z-index:100}.header-left{display:flex;align-items:baseline;gap:12px}.header-left h1{font-size:16px;font-weight:700;letter-spacing:-.3px;color:var(--text)}.header-subtitle{font-size:12px;color:var(--text-muted)}.header-right{display:flex;align-items:center;gap:12px}#header-actions{display:flex;gap:6px}#app-main{flex:1;display:grid;grid-template-columns:var(--sidebar-width) 1fr var(--detail-width);overflow:hidden}#app-footer{height:var(--footer-height);background:var(--bg-surface);border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 16px;font-size:11px;color:var(--text-muted);flex-shrink:0}#graph-container{position:relative;overflow:hidden;background:var(--bg)}.graph-tooltip{display:none;position:absolute;pointer-events:none;z-index:var(--z-tooltip);background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);padding:6px 10px;font-size:12px;line-height:1.5;color:var(--text);box-shadow:var(--shadow-md);max-width:260px}.graph-tooltip .tt-type{color:var(--text-muted);font-size:11px}.graph-tooltip .tt-conns{color:var(--text-dim);font-size:11px}#loading-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;z-index:var(--z-loading);transition:opacity .3s}#loading-overlay.fade-out{opacity:0;pointer-events:none}.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#loading-overlay p{color:var(--text-muted);font-size:14px}.hidden{display:none!important}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-dim)}button{font-family:inherit;font-size:12px;cursor:pointer;border:1px solid var(--border);background:var(--bg-elevated);color:var(--text);padding:4px 10px;border-radius:var(--radius-sm);transition:background .15s,border-color .15s}button:hover{background:#2e3347;border-color:var(--text-muted)}button:active{background:var(--border);transform:scale(.98)}#btn-copy-link.copied{border-color:var(--success-color);color:var(--success-color)}.hyper-route-label{position:absolute;top:0;left:0;pointer-events:auto;cursor:pointer;font-size:11px;font-weight:600;color:#e8d5a0;opacity:.85;background:#0f1117bf;padding:2px 8px;border-radius:3px;border:1px solid rgba(212,170,64,.3);white-space:nowrap;z-index:var(--z-toolbar);will-change:transform;transition:border-color .15s,background .15s}.hyper-route-label:hover{border-color:#d4aa4099;background:#0f1117e6}.hyper-route-label.active{border-color:var(--hyper-route-color);background:#d4aa4026}.legend-divider{font-size:11px;font-weight:600;color:var(--selected-color);margin-top:10px;margin-bottom:4px;padding-top:8px;border-top:1px solid var(--border);letter-spacing:.3px}.legend-route-subtitle{font-size:10px;color:var(--text-dim);margin-bottom:6px;line-height:1.4}.legend-route-line{display:inline-block;width:18px;height:3px;background:var(--selected-color);border-radius:2px;vertical-align:middle;margin-right:6px;flex-shrink:0}.legend-route-badge{font-size:10px;color:var(--text-dim);background:var(--bg-elevated);border:1px solid var(--border);border-radius:8px;padding:0 5px;margin-left:auto;flex-shrink:0}.legend-route-item{transition:background .15s;border-radius:var(--radius-sm);padding:2px 4px}.legend-route-item:hover{background:var(--bg-elevated)}.legend-route-item.active{background:#ffd6001a}input[type=checkbox],input[type=radio]{accent-color:var(--accent);margin-right:6px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}#sidebar{background:var(--bg-surface);border-right:1px solid var(--border);overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:16px}#sidebar section{display:flex;flex-direction:column;gap:8px}#sidebar h2{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--text-muted);font-weight:600}#type-filters label{display:flex;align-items:center;gap:4px;padding:3px 6px;border-radius:var(--radius-sm);cursor:pointer;font-size:12px;transition:background .15s}#type-filters label:hover{background:var(--bg-elevated)}.type-swatch{display:inline-block;width:10px;height:10px;border-radius:var(--radius-sm);flex-shrink:0}.type-count{margin-left:auto;color:var(--text-dim);font-size:11px}#edge-toggle-label{display:flex;align-items:center;font-size:12px;cursor:pointer;padding:3px 6px;border-radius:var(--radius-sm)}#edge-toggle-label:hover{background:var(--bg-elevated)}#edge-declared-label{display:flex;align-items:center;font-size:12px;cursor:pointer;padding:3px 6px 3px 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a{color:var(--accent);font-size:11px;text-decoration:none}.info-tip-content a:hover{text-decoration:underline}.info-tip:hover .info-tip-content,.info-tip:focus-within .info-tip-content{display:block}#centrality-section h2{cursor:pointer;-webkit-user-select:none;user-select:none}#centrality-section h2:before{content:"▶";font-size:8px;margin-right:6px;display:inline-block;transition:transform .15s}#centrality-section h2.expanded:before{transform:rotate(90deg)}#centrality-metric-select{background:var(--bg-elevated);border:1px solid var(--border);color:var(--text);font-size:11px;padding:4px 6px;border-radius:var(--radius-sm);width:100%;margin-bottom:4px}.centrality-list ul{list-style:none;display:flex;flex-direction:column;gap:2px;max-height:300px;overflow-y:auto}.centrality-item{display:flex;align-items:center;gap:6px;padding:3px 6px;border-radius:var(--radius-sm);cursor:pointer;font-size:11px;transition:background .15s}.centrality-item:hover{background:var(--bg-elevated)}.centrality-item-rank{color:var(--text-dim);font-size:10px;min-width:18px;text-align:right}.centrality-item-swatch{width:8px;height:8px;border-radius:var(--radius-sm);flex-shrink:0}.centrality-item-label{color:var(--text);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.centrality-item-value{color:var(--text-dim);font-family:SF Mono,Cascadia Code,monospace;font-size:10px;margin-left:auto}#legend{display:flex;flex-direction:column;gap:6px;font-size:11px;color:var(--text-muted)}.legend-item{display:flex;align-items:center;gap:6px}.legend-edge{width:20px;height:2px;background:#999;position:relative}.legend-edge:after{content:"";position:absolute;right:-3px;top:-3px;border-left:6px solid #999;border-top:4px solid transparent;border-bottom:4px solid transparent}.legend-node{width:12px;height:12px;border-radius:50%;border:1.5px solid #fff}.legend-edge-inferred{background:transparent;border-bottom:2px dashed #999;height:0}.legend-edge-inferred:after{display:none}.disabled-section{opacity:.35;pointer-events:none}#detail-panel{background:var(--bg-surface);border-left:1px solid var(--border);overflow-y:auto;padding:16px}#detail-placeholder{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-dim);font-size:13px}#detail-content{position:relative;display:flex;flex-direction:column;gap:14px}.detail-close{position:absolute;top:0;right:0;background:transparent;border:none;color:var(--text-muted);font-size:20px;cursor:pointer;line-height:1;padding:2px 6px;z-index:1}.detail-close:hover{color:var(--text);background:transparent}.detail-header{display:flex;flex-direction:column;gap:4px}.detail-title{font-size:16px;font-weight:700;line-height:1.3}.detail-badges{display:flex;gap:6px;flex-wrap:wrap}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:var(--radius-pill);font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.3px}.badge-type{color:#fff}.badge-cluster{background:var(--bg-elevated);color:var(--text-muted);border:1px solid var(--border)}.badge-id{background:var(--bg-elevated);color:var(--text-dim);font-family:SF Mono,Cascadia Code,monospace;font-size:10px;letter-spacing:0;text-transform:none}a.badge{text-decoration:none;cursor:pointer}a.badge:hover{filter:brightness(1.2)}a.badge-cluster:hover,a.badge-id:hover{filter:none;border-color:var(--accent);color:var(--accent)}.detail-definition{font-size:13px;line-height:1.6;color:var(--text-muted)}.detail-section{border-top:1px solid var(--border);padding-top:10px}.detail-section h3{font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--text-dim);margin-bottom:6px;font-weight:600}.detail-section p{font-size:12px;line-height:1.6;color:var(--text-muted)}.causal-list{list-style:none;display:flex;flex-direction:column;gap:2px}.causal-list li{font-size:12px}.causal-link{cursor:pointer;color:var(--accent);padding:2px 4px;border-radius:var(--radius-sm);display:inline-block;background:none;border:none;font:inherit;font-size:12px;text-align:left}.causal-link:hover{background:var(--bg-elevated);color:var(--accent-hover)}.causal-link:before{margin-right:4px;font-size:10px}.causal-link.causes:before{content:"→";color:var(--causes-arrow-color)}.causal-link.caused-by:before{content:"←";color:var(--caused-by-arrow-color)}.causal-link.inferred{opacity:.7}.causal-inferred{font-size:10px;color:var(--text-dim);font-style:italic}.source-links{display:flex;flex-direction:column;gap:4px}.source-links a{font-size:11px;word-break:break-all;display:block;padding:2px 0}.khop-controls{display:flex;align-items:center;gap:4px;margin-top:6px}.khop-label{font-size:10px;color:var(--text-dim);text-transform:uppercase;letter-spacing:.4px;font-weight:600;margin-right:2px}.khop-btn{padding:2px 8px;font-size:11px;background:var(--bg-elevated);border:1px solid var(--border);color:var(--text-muted);border-radius:var(--radius-sm);cursor:pointer;transition:border-color .15s,background .15s}.khop-btn:hover{border-color:var(--accent);color:var(--accent);background:#5b9cf514}.khop-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.centrality-section{border-top:1px solid var(--border);padding-top:10px}.centrality-section h3{font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--text-dim);margin-bottom:6px;font-weight:600}.centrality-metrics{display:flex;flex-direction:column;gap:4px}.centrality-metric{display:flex;align-items:center;gap:6px;font-size:12px}.centrality-name{color:var(--text-muted);min-width:85px;display:inline-flex;align-items:center}#detail-panel .info-tip-content{bottom:auto;top:calc(100% + 8px);left:0;transform:none}#detail-panel .info-tip-content:after{top:auto;bottom:100%;border-top-color:transparent;border-bottom-color:var(--border)}.centrality-value{color:var(--text);font-family:SF Mono,Cascadia Code,monospace;font-size:11px}.centrality-rank{margin-left:auto;background:var(--bg-elevated);color:var(--accent);padding:1px 6px;border-radius:var(--radius-lg);font-size:10px;font-weight:600}.alt-labels{display:flex;flex-wrap:wrap;gap:4px}.alt-label{background:var(--bg-elevated);color:var(--text-muted);padding:2px 8px;border-radius:var(--radius-pill);font-size:11px}.cascade-btn{margin-top:8px;padding:5px 12px;font-size:11px;font-weight:600;background:var(--bg-elevated);border:1px solid var(--accent);color:var(--accent);border-radius:var(--radius-sm);cursor:pointer;transition:background .15s,color .15s}.cascade-btn:hover{background:var(--accent);color:#fff}#toolbar{position:absolute;bottom:16px;right:16px;display:flex;gap:4px;z-index:20}#toolbar button{width:32px;height:32px;display:flex;align-items:center;justify-content:center;padding:0;font-size:14px;font-weight:600;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm)}#toolbar button:hover{background:var(--bg-elevated)}#toolbar #btn-fit,#toolbar #btn-reset{width:auto;padding:0 10px;font-size:11px;font-weight:500}#search-container{position:relative}#search-input{background:var(--bg-elevated);border:1px solid var(--border);color:var(--text);padding:5px 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var(--border);cursor:grab;-webkit-user-select:none;user-select:none;flex-shrink:0}.insights-titlebar:active{cursor:grabbing}.insights-title{font-size:12px;font-weight:600;color:var(--text);letter-spacing:.3px}.insights-close{background:none;border:none;color:var(--text-muted);font-size:18px;cursor:pointer;line-height:1;padding:2px 6px}.insights-close:hover{color:var(--text);background:none}.insights-panel-body{overflow:auto;flex:1}.insights-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px;padding:8px 14px 12px}.insights-category{grid-column:1 / -1;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--text-dim);padding:4px 0 0}.insight-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;cursor:pointer;transition:border-color .15s,background .15s,box-shadow .15s;min-width:0}.insight-card:hover{border-color:var(--accent);box-shadow:0 0 8px 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transparent;color:var(--text-dim);cursor:pointer}#pathfinder-clear:hover{color:var(--text);background:var(--bg-elevated)}#btn-flow-matrix.active{background:var(--accent);border-color:var(--accent);color:var(--bg)}.flow-panel{position:fixed;z-index:var(--z-floating-panels);min-width:480px;max-width:90vw;max-height:85vh;resize:both;overflow:hidden;display:flex;flex-direction:column;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);top:50%;left:50%;transform:translate(-50%,-50%)}.flow-panel.hidden{display:none}.flow-panel.dragged{transform:none}.flow-panel-titlebar{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;background:var(--bg-elevated);border-bottom:1px solid var(--border);cursor:grab;-webkit-user-select:none;user-select:none;flex-shrink:0}.flow-panel-titlebar:active{cursor:grabbing}.flow-panel-title{font-size:13px;font-weight:600;color:var(--text)}.flow-panel-close{background:none;border:none;color:var(--text-muted);font-size:20px;cursor:pointer;line-height:1;padding:0 4px}.flow-panel-close:hover{color:var(--text);background:none}.flow-panel-body{padding:12px 16px;overflow:auto;flex:1}#flow-body{overflow-x:auto}.flow-toolbar{display:flex;justify-content:flex-end;margin-bottom:6px}.flow-copy-btn{padding:4px 10px;font-size:11px;background:var(--bg-elevated);border:1px solid var(--border);color:var(--text-muted);border-radius:var(--radius-sm);cursor:pointer;transition:border-color .15s,color .15s}.flow-copy-btn:hover{border-color:var(--accent);color:var(--accent)}.flow-copy-btn.copied{border-color:var(--success-color);color:var(--success-color)}.flow-table{border-collapse:collapse;font-size:11px;width:100%}.flow-table th,.flow-table td{padding:4px 6px;text-align:center;border:1px solid var(--border)}.flow-corner{background:transparent;border:none}.flow-col-header{height:90px;white-space:nowrap;vertical-align:bottom;padding-bottom:8px}.flow-col-label{display:flex;align-items:center;gap:3px;transform:rotate(-45deg);transform-origin:left bottom;width:max-content;font-size:10px;font-weight:600;color:var(--text-muted)}.flow-row-header{text-align:right;white-space:nowrap;font-size:10px;font-weight:600;color:var(--text-muted);padding-right:8px}.flow-swatch{display:inline-block;width:8px;height:8px;border-radius:2px;flex-shrink:0}.flow-cell{cursor:pointer;font-size:11px;color:var(--text);min-width:36px;transition:outline .1s,box-shadow .1s}.flow-cell:hover{outline:2px solid var(--accent);outline-offset:-2px;z-index:1;position:relative}.flow-cell.active{outline:2px solid var(--flow-active-outline);outline-offset:-2px;box-shadow:0 0 8px #ffd6004d;z-index:2;position:relative}.flow-diag{border-style:dashed}.flow-total{font-weight:600;color:var(--text-dim);background:var(--bg-elevated);font-size:10px}.flow-total-header{font-size:10px;font-weight:600;color:var(--text-dim);background:var(--bg-elevated)}.flow-grand-total{color:var(--accent)}.eb-canvas{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}.eb-svg{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden}.eb-node circle{transition:opacity .15s}.eb-label{pointer-events:none;transition:opacity .15s;-webkit-user-select:none;user-select:none}.eb-type-label{pointer-events:none;-webkit-user-select:none;user-select:none;letter-spacing:.3px}.eb-type-arc{transition:opacity .15s}.tension-control{display:flex;flex-direction:column;gap:4px;padding:0 4px}.tension-control label{font-size:12px;color:var(--text-muted);display:flex;justify-content:space-between;align-items:center}.tension-control input[type=range]{width:100%;height:4px;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--border);border-radius:2px;outline:none}.tension-control input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent);cursor:pointer;border:2px solid var(--bg-surface)}.tension-control input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--accent);cursor:pointer;border:2px solid var(--bg-surface)}.view-switcher{display:flex;gap:4px;margin-bottom:8px}.view-btn{flex:1;padding:6px 8px;font-size:12px;font-weight:500;text-align:center;border:1px solid var(--border);background:var(--bg-elevated);color:var(--text-muted);border-radius:var(--radius-sm);cursor:pointer;transition:background .15s,color .15s,border-color .15s}.view-btn:hover{background:#2e3347;color:var(--text)}.view-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.cascade-svg{position:absolute;top:0;left:0;width:100%;height:100%;background:var(--bg)}.cascade-link,.cascade-node{transition:opacity .2s}.cascade-node.ghost rect{opacity:.4}.cascade-node.ghost text{opacity:.6}.cascade-root rect{filter:drop-shadow(0 2px 4px rgba(0,0,0,.3))}.cascade-direction-labels{position:absolute;top:12px;left:0;right:0;display:flex;justify-content:center;gap:48px;pointer-events:none;z-index:10}.cascade-dir-label{color:#fff;font-size:12px;font-weight:600;letter-spacing:.3px;opacity:.7}.cascade-suggestions{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;padding:8px 0}.cascade-suggestion-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border:1px solid color-mix(in srgb,var(--chip-color) 50%,transparent);border-radius:16px;background:color-mix(in srgb,var(--chip-color) 12%,transparent);color:var(--text);font-size:13px;cursor:pointer;transition:background .15s,border-color .15s}.cascade-suggestion-chip:hover{background:color-mix(in srgb,var(--chip-color) 28%,transparent);border-color:var(--chip-color)}.cascade-suggestion-chip .chip-dot{display:inline-block;width:8px;height:8px;border-radius:50%;flex-shrink:0}#start-screen{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--bg);display:flex;align-items:center;justify-content:center;z-index:var(--z-loading);transition:opacity .35s ease}#start-screen.hidden{display:none!important}#start-screen.fade-out{opacity:0;pointer-events:none}#start-screen{overflow-y:auto}.start-content{text-align:left;max-width:520px;padding:24px}.start-title{font-size:22px;font-weight:700;color:var(--text);margin-bottom:6px;letter-spacing:-.3px}.start-subtitle{font-size:13px;color:var(--text-muted);margin-bottom:32px}.start-cards{display:flex;gap:20px}.start-card{display:flex;flex-direction:column;align-items:center;gap:12px;flex:1;padding:28px 20px 24px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-lg);cursor:pointer;transition:border-color .2s,box-shadow .2s,transform .15s}.start-card:hover{border-color:var(--accent);box-shadow:0 0 20px #5b9cf526;background:var(--bg-elevated)}.start-card:focus-visible{box-shadow:var(--focus-ring)}.start-card:active{transform:scale(.97)}.start-icon{width:80px;height:80px}.start-card-name{font-size:16px;font-weight:600;color:var(--text)}.start-card-desc{font-size:12px;color:var(--text-muted);line-height:1.4}.start-about{margin-top:32px;text-align:left;max-height:220px;overflow-y:auto;padding:16px 20px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-lg)}.start-about h3{font-size:13px;font-weight:600;color:var(--accent);margin:14px 0 6px}.start-about h3:first-child{margin-top:0}.start-about p,.start-about li{font-size:12px;color:var(--text-muted);line-height:1.6}.start-about ul{padding-left:18px;margin:4px 0}.start-about a{color:var(--accent)}.start-about a:hover{color:var(--accent-hover)}