:root{--bg-primary: #0a0a0b;--bg-secondary: #111113;--bg-tertiary: #18181b;--bg-hover: #1f1f23;--text-primary: #fafafa;--text-secondary: #a1a1aa;--text-muted: #52525b;--accent: #10b981;--accent-hover: #34d399;--accent-dim: rgba(16, 185, 129, .15);--online: #10b981;--offline: #ef4444;--unknown: #f59e0b;--warning: #f59e0b;--border: #27272a;--border-light: #3f3f46;--font-sans: "Space Grotesk", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--transition-fast: .15s ease;--transition-normal: .25s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.5;min-height:100vh}a{color:var(--accent);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--accent-hover)}.app{display:flex;flex-direction:column;min-height:100vh}.header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md) var(--space-lg);background:var(--bg-secondary);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.header-left{display:flex;align-items:center;gap:var(--space-md)}.logo{width:32px;height:32px;color:var(--accent)}.logo svg{width:100%;height:100%}.title{font-size:1.25rem;font-weight:600;letter-spacing:-.02em}.subtitle{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;padding-left:var(--space-md);border-left:1px solid var(--border)}.header-right{display:flex;align-items:center;gap:var(--space-md)}.btn-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:transparent;border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast)}.btn-icon:hover{background:var(--bg-hover);border-color:var(--border-light);color:var(--text-primary)}.btn-icon svg{width:18px;height:18px}.btn-icon.spinning svg,.btn-icon.testing svg{animation:spin 1s linear infinite}.btn-icon.active{background:var(--accent-dim);border-color:var(--accent);color:var(--accent)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.status-indicator{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);background:var(--bg-tertiary);border-radius:var(--radius-md);font-size:.75rem;font-family:var(--font-mono)}.pulse{width:8px;height:8px;background:var(--accent);border-radius:50%;animation:pulse 2s infinite}.pulse.scanning{background:var(--warning)}.pulse.error{background:var(--offline);animation:none}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.stats-bar{display:flex;justify-content:center;gap:var(--space-2xl);padding:var(--space-lg) var(--space-lg);background:var(--bg-secondary);border-bottom:1px solid var(--border)}.stat{display:flex;flex-direction:column;align-items:center;gap:var(--space-xs)}.stat-value{font-size:1.75rem;font-weight:600;font-family:var(--font-mono);letter-spacing:-.02em}.stat-value.online{color:var(--online)}.stat-value.offline{color:var(--offline)}.stat-label{font-size:.7rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em}.main-content{flex:1;display:grid;grid-template-columns:1fr;gap:var(--space-lg);padding:var(--space-lg);max-width:1600px;margin:0 auto;width:100%}@media (min-width: 1024px){.main-content{grid-template-columns:1fr 400px}}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-md)}.section-header h2{font-size:.875rem;font-weight:500;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.map-section{display:flex;flex-direction:column}.map-legend{display:flex;gap:var(--space-md)}.legend-item{display:flex;align-items:center;gap:var(--space-xs);font-size:.75rem;color:var(--text-muted)}.dot{width:8px;height:8px;border-radius:50%}.dot.online{background:var(--online)}.dot.offline{background:var(--offline)}.dot.unknown{background:var(--unknown)}.line-sample{width:20px;height:2px;border-radius:1px}.line-sample.mesh{background:var(--online)}.map-container{flex:1;min-height:400px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden}.leaflet-container{background:var(--bg-secondary);font-family:var(--font-sans)}.leaflet-tile-pane{filter:invert(1) hue-rotate(180deg) brightness(.8) contrast(1.2) saturate(.3)}.leaflet-control-zoom{border:none!important}.leaflet-control-zoom a{background:var(--bg-tertiary)!important;color:var(--text-secondary)!important;border:1px solid var(--border)!important}.leaflet-control-zoom a:hover{background:var(--bg-hover)!important;color:var(--text-primary)!important}.leaflet-popup-content-wrapper{background:var(--bg-tertiary);color:var(--text-primary);border-radius:var(--radius-md);box-shadow:0 4px 20px #00000080}.leaflet-popup-tip{background:var(--bg-tertiary)}.leaflet-popup-content{margin:var(--space-sm) var(--space-md);font-family:var(--font-mono);font-size:.75rem}.node-marker{width:12px;height:12px;border-radius:50%;border:2px solid var(--bg-primary);box-shadow:0 0 10px currentColor}.node-marker.online{background:var(--online);color:var(--online)}.node-marker.offline{background:var(--offline);color:var(--offline)}.node-marker.unknown{background:var(--unknown);color:var(--unknown)}.nodes-section{display:flex;flex-direction:column;min-height:0}.filter-group{display:flex;gap:var(--space-xs)}.filter-btn{padding:var(--space-xs) var(--space-sm);background:transparent;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);font-size:.7rem;font-family:var(--font-mono);cursor:pointer;transition:all var(--transition-fast)}.filter-btn:hover{background:var(--bg-hover);color:var(--text-secondary)}.filter-btn.active{background:var(--accent-dim);border-color:var(--accent);color:var(--accent)}.nodes-list{flex:1;overflow-y:auto;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);max-height:600px}.node-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md);border-bottom:1px solid var(--border);transition:background var(--transition-fast)}.node-item:last-child{border-bottom:none}.node-item:hover{background:var(--bg-hover)}.node-status{width:10px;height:10px;border-radius:50%;flex-shrink:0}.node-status.online{background:var(--online);box-shadow:0 0 8px var(--online)}.node-status.offline{background:var(--offline)}.node-status.unknown{background:var(--unknown)}.node-status.checking{background:var(--text-muted);animation:pulse 1s infinite}.node-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.node-url{font-family:var(--font-mono);font-size:.8rem;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.node-meta{display:flex;gap:var(--space-md);font-size:.7rem;color:var(--text-muted)}.node-meta span{display:flex;align-items:center;gap:var(--space-xs)}.node-ip{font-family:var(--font-mono);color:var(--text-muted);font-size:.65rem}.node-latency{font-family:var(--font-mono);font-size:.75rem;color:var(--text-muted);text-align:right;min-width:60px}.node-latency.fast{color:var(--online)}.node-latency.medium{color:var(--warning)}.node-latency.slow{color:var(--offline)}.loading-skeleton{padding:var(--space-md)}.skeleton-item{height:48px;background:linear-gradient(90deg,var(--bg-tertiary) 25%,var(--bg-hover) 50%,var(--bg-tertiary) 75%);background-size:200% 100%;border-radius:var(--radius-md);margin-bottom:var(--space-sm);animation:shimmer 1.5s infinite}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2xl);color:var(--text-muted);text-align:center}.empty-state svg{width:48px;height:48px;margin-bottom:var(--space-md);opacity:.5}.footer{padding:var(--space-md) var(--space-lg);background:var(--bg-secondary);border-top:1px solid var(--border)}.footer-content{display:flex;justify-content:center;align-items:center;gap:var(--space-md);font-size:.75rem;color:var(--text-muted)}.separator{color:var(--border-light)}.popup-content{display:flex;flex-direction:column;gap:var(--space-xs)}.popup-url{font-weight:500;word-break:break-all}.popup-status{display:flex;align-items:center;gap:var(--space-xs)}.popup-status .dot{width:6px;height:6px}.popup-location{color:var(--text-muted)}.connection-line{stroke-linecap:round}.leaflet-interactive.connection-line:hover{stroke-opacity:1!important;stroke-width:3px!important}@keyframes dataFlow{0%{stroke-dashoffset:0}to{stroke-dashoffset:30}}.connection-line-animated{animation:dataFlow 1s linear infinite}@media (max-width: 768px){.header{flex-direction:column;gap:var(--space-md);padding:var(--space-md)}.subtitle{display:none}.stats-bar{gap:var(--space-lg);padding:var(--space-md);flex-wrap:wrap}.stat-value{font-size:1.25rem}.main-content{padding:var(--space-md)}.map-container{min-height:300px}.nodes-list{max-height:400px}}.nodes-list::-webkit-scrollbar{width:6px}.nodes-list::-webkit-scrollbar-track{background:var(--bg-secondary)}.nodes-list::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:3px}.nodes-list::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.connection-popup{min-width:180px}.popup-route{display:flex;align-items:center;gap:var(--space-xs);margin:var(--space-xs) 0;font-size:.7rem}.popup-node{color:var(--text-secondary);word-break:break-all}.popup-arrow{color:var(--accent);font-weight:700;flex-shrink:0}.popup-metrics{display:flex;gap:var(--space-md);padding-top:var(--space-xs);border-top:1px solid var(--border);margin-top:var(--space-xs)}.popup-distance{color:var(--text-muted);font-size:.7rem}.popup-distance:before{content:"";display:inline-block;width:10px;height:10px;margin-right:4px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2371717a' stroke-width='2'%3E%3Cpath d='M12 22s-8-4.5-8-11.8A8 8 0 0 1 12 2a8 8 0 0 1 8 8.2c0 7.3-8 11.8-8 11.8z'/%3E%3Ccircle cx='12' cy='10' r='3'/%3E%3C/svg%3E");background-size:contain;vertical-align:middle}.popup-latency{color:var(--accent);font-size:.7rem;font-weight:500}.popup-latency:before{content:"";display:inline-block;width:10px;height:10px;margin-right:4px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2310b981' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpolyline points='12 6 12 12 16 14'/%3E%3C/svg%3E");background-size:contain;vertical-align:middle}.connection-line{filter:drop-shadow(0 0 2px var(--online))}