*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-main: #0d1117;--bg-card: #161b22;--bg-sidebar: #0d1117;--bg-elevated: #1c2128;--bg-hover: #21262d;--border: #30363d;--border-subtle: #21262d;--text-primary: #e6edf3;--text-secondary: #8b949e;--text-muted: #484f58;--accent-blue: #58a6ff;--accent-cyan: #79c0ff;--accent-green: #3fb950;--accent-red: #f85149;--accent-amber: #d29922;--accent-purple: #bc8cff;--accent-orange: #ffa657;--status-healthy: #3fb950;--status-degraded: #d29922;--status-down: #f85149;--sidebar-width: 220px;--header-height: 64px;--transition: all .2s ease}html,body{height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe 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var(--border);display:flex;align-items:center;gap:10px}.sidebar-logo-icon{width:32px;height:32px;background:linear-gradient(135deg,#58a6ff,#79c0ff);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;color:#0d1117;flex-shrink:0}.sidebar-logo-text{font-size:13px;font-weight:600;color:var(--text-primary);line-height:1.3}.sidebar-logo-sub{font-size:10px;color:var(--text-secondary);font-weight:400}.sidebar-nav{flex:1;padding:12px 0;overflow-y:auto}.nav-section-label{font-size:10px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;padding:8px 16px 4px}.nav-item{display:flex;align-items:center;gap:10px;padding:9px 16px;color:var(--text-secondary);text-decoration:none;font-size:13.5px;font-weight:500;border-radius:0;transition:var(--transition);cursor:pointer;border:none;background:none;width:100%;text-align:left;border-left:3px solid transparent}.nav-item:hover{color:var(--text-primary);background:var(--bg-hover)}.nav-item.active{color:var(--accent-blue);background:#58a6ff14;border-left-color:var(--accent-blue)}.nav-item-icon{font-size:16px;width:20px;text-align:center;flex-shrink:0}.sidebar-footer{padding:16px;border-top:1px solid var(--border)}.sidebar-status{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-secondary)}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--status-healthy);animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.card{background:var(--bg-card);border:1px solid 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var(--border-subtle);cursor:pointer}.alert-item:last-child{border-bottom:none}.alert-item:hover{opacity:.85}.alert-severity-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.alert-severity-dot.critical{background:var(--accent-red)}.alert-severity-dot.warning{background:var(--accent-amber)}.alert-severity-dot.info{background:var(--accent-blue)}.alert-text{flex:1;font-size:13px;color:var(--text-primary)}.alert-time{font-size:11px;color:var(--text-secondary);white-space:nowrap}.chart-section{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:24px}.chart-title{font-size:14px;font-weight:600;color:var(--text-primary);margin-bottom:16px}.chart-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.topology-canvas{background:var(--bg-elevated);border:1px solid var(--border);border-radius:10px;overflow:hidden;position:relative}.topology-legend{display:flex;gap:16px;padding:12px 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span{font-size:13px;color:var(--text-primary);font-weight:500}.settings-row-label small{font-size:11px;color:var(--text-secondary)}.settings-control{min-width:200px}.checkbox-row{display:flex;align-items:center;gap:10px;padding:10px 0}.checkbox-row input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent-blue);cursor:pointer}.checkbox-row label{font-size:13px;color:var(--text-primary);cursor:pointer}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;z-index:500;display:flex;align-items:center;justify-content:center;animation:fadeIn .15s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:24px;width:520px;max-width:calc(100vw - 40px);animation:scaleIn .15s ease;max-height:85vh;overflow-y:auto}@keyframes scaleIn{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--border)}.modal-title{font-size:16px;font-weight:600;color:var(--text-primary)}.modal-close{background:none;border:none;color:var(--text-secondary);font-size:18px;cursor:pointer;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:var(--transition)}.modal-close:hover{background:var(--bg-hover);color:var(--text-primary)}.modal-footer{display:flex;gap:10px;justify-content:flex-end;margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}.recharts-cartesian-grid-horizontal line,.recharts-cartesian-grid-vertical line{stroke:var(--border)!important}.recharts-text{fill:var(--text-secondary)!important;font-size:11px!important}.recharts-legend-item-text{color:var(--text-secondary)!important;font-size:12px!important}.recharts-tooltip-wrapper .recharts-default-tooltip{background:var(--bg-elevated)!important;border:1px solid var(--border)!important;border-radius:6px!important;font-size:12px!important}.priority-high{color:var(--accent-red)}.priority-medium{color:var(--accent-amber)}.priority-low{color:var(--text-secondary)}.severity-critical{background:#f8514926;color:var(--accent-red);border:1px solid rgba(248,81,73,.3)}.severity-warning{background:#d2992226;color:var(--accent-amber);border:1px solid rgba(210,153,34,.3)}.severity-info{background:#58a6ff1f;color:var(--accent-blue);border:1px solid rgba(88,166,255,.25)}.divider{height:1px;background:var(--border);margin:16px 0}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.text-green{color:var(--accent-green)}.text-red{color:var(--accent-red)}.text-amber{color:var(--accent-amber)}.text-blue{color:var(--accent-blue)}.mb-4{margin-bottom:4px}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.flex{display:flex}.flex-1{flex:1}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.view-all-link{color:var(--accent-blue);text-decoration:none;font-size:13px;font-weight:500;transition:var(--transition);cursor:pointer}.view-all-link:hover{color:var(--accent-cyan)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media (min-width: 1600px){.stats-grid{grid-template-columns:repeat(6,1fr)}.link-cards-grid{grid-template-columns:repeat(4,1fr)}.page-content{padding:28px 40px}}.topology-svg{width:100%;display:block}.topology-node{cursor:pointer}.topology-node circle{transition:r .15s ease,filter .15s ease}.topology-node:hover circle{filter:brightness(1.2)}.topology-node text{pointer-events:none;-webkit-user-select:none;user-select:none}.topology-link{cursor:pointer;stroke-width:2}.topology-link:hover{stroke-width:3;opacity:.8}.bandwidth-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}.two-col-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.toast{position:fixed;bottom:24px;right:24px;background:var(--bg-elevated);border:1px solid var(--accent-green);border-radius:8px;padding:12px 18px;font-size:13px;color:var(--text-primary);display:flex;align-items:center;gap:10px;animation:slideUp .25s ease;z-index:1000;box-shadow:0 8px 24px #0006}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.toast-icon{color:var(--accent-green)}