:root{--bg:#0b1220;--surface:#111827;--surface-2:#1a2435;--border:#253247;--text:#e5e7eb;--text-muted:#94a3b8;--green:#22c55e;--yellow:#facc15;--red:#ef4444;--blue:#3b82f6;--shadow:0 12px 30px #00000059;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html,body,#root{background:var(--bg);width:100%;min-height:100%;color:var(--text);margin:0}body{min-height:100vh}.layout{min-height:100vh;display:flex}.sidebar{border-right:1px solid var(--border);background:#0f172a;width:250px;padding:28px}.sidebar h2{color:#fff;margin:0 0 32px;font-size:28px}.sidebar button{text-align:left;width:100%;color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:10px;margin-bottom:10px;padding:14px 18px;font-size:15px;transition:all .2s}.sidebar button:hover{color:#fff;background:#172554}.sidebar button.active{color:#fff;background:#1d4ed8}.main{flex-direction:column;flex:1;display:flex}.header{border-bottom:1px solid var(--border);background:#0f172a;justify-content:space-between;align-items:center;height:72px;padding:0 32px;display:flex}.header h1{color:#fff;margin:0;font-size:32px}.content{padding:28px}.stats{grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px;display:grid}.stat-card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:16px;padding:24px}.stat-title{color:var(--text-muted);font-size:15px}.stat-value{color:#fff;margin-top:14px;font-size:42px;font-weight:700}.dashboard-grid{grid-template-columns:2fr 1fr;gap:22px;display:grid}.dashboard-grid .card:first-child{min-height:600px}.card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:18px;margin-bottom:24px;padding:24px}.card h3{color:#fff;margin-top:0;margin-bottom:18px;font-size:22px}progress{width:100%;height:14px;margin-top:18px}progress::-webkit-progress-bar{background:#273244;border-radius:999px}progress::-webkit-progress-value{background:var(--green);border-radius:999px}ul{margin:0;padding:0;list-style:none}li{border-bottom:1px solid #ffffff0d;padding:10px 0}li:last-child{border-bottom:none}table{border-collapse:collapse;width:100%}th{color:var(--text-muted);text-align:left}td,th{padding:12px}tr{border-bottom:1px solid var(--border)}.topology-container{border-radius:12px;width:100%;height:520px;overflow:hidden}.topology-container svg{width:100%;height:100%}.node circle{fill:#1e293b;stroke:var(--green);stroke-width:2.5px}.node text{fill:#fff;font-size:13px}.link{stroke:#64748b;stroke-width:2px}.link.preferred{stroke:var(--green);stroke-width:4px}.link.backup{stroke:var(--blue);stroke-dasharray:8 6}.link.weak{stroke:var(--yellow)}.link.dead{stroke:var(--red)}.node:hover circle{fill:#243449;stroke-width:4px}.link:hover{stroke-width:6px}@media (width<=1200px){.stats{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr}.sidebar{width:210px}}@media (width<=800px){.layout{flex-direction:column}.sidebar{border-right:none;border-bottom:1px solid var(--border);width:100%}.stats{grid-template-columns:1fr}}.status{color:var(--text-muted);margin-left:auto}.node-link{color:#fff}.sidebar a{text-align:left;width:100%;color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:10px;margin-bottom:10px;padding:14px 18px;font-size:15px;transition:all .2s}