*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:#f4f7fb;color:#0f172a}.app{display:flex;min-height:100vh}.sidebar{width:270px;background:#0f172a;color:#fff;display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0}.brand{display:flex;gap:12px;align-items:center;padding:22px;border-bottom:1px solid #263244}.logo{width:44px;height:44px;border-radius:14px;background:#2563eb;display:flex;align-items:center;justify-content:center;font-weight:900}.brand span{display:block;color:#94a3b8;font-size:12px}.sidebar nav{padding:16px}.sidebar nav a{display:block;color:#cbd5e1;text-decoration:none;padding:10px 14px;border-radius:10px;margin-bottom:4px}.sidebar nav a:hover{background:#1f2937;color:#fff}.sidebar-footer{margin-top:auto;padding:16px;border-top:1px solid #263244;font-size:13px}.sidebar-footer a{color:#93c5fd;display:block;margin-top:8px}.main{margin-left:270px;width:calc(100% - 270px);padding:24px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.topbar h1{margin:0;font-size:26px}.pill{background:#dbeafe;color:#1d4ed8;padding:8px 12px;border-radius:999px;font-weight:700}.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}.card{background:#fff;border-radius:18px;padding:18px;box-shadow:0 8px 28px rgba(15,23,42,.07);border:1px solid #e5e7eb}.span-3{grid-column:span 3}.span-4{grid-column:span 4}.span-6{grid-column:span 6}.span-8{grid-column:span 8}.span-12{grid-column:span 12}.metric{font-size:34px;font-weight:900;line-height:1.1}.label{font-size:13px;color:#64748b}.ok{color:#15803d}.bad{color:#b91c1c}.warn{color:#b45309}table{width:100%;border-collapse:collapse}th,td{padding:10px;border-bottom:1px solid #e5e7eb;text-align:left;font-size:14px;vertical-align:top}th{background:#f8fafc;color:#334155}code{background:#eef2ff;padding:3px 6px;border-radius:6px}input,select{width:100%;padding:10px;border:1px solid #cbd5e1;border-radius:10px;margin-top:5px}label{font-weight:700;font-size:13px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.btn{display:inline-block;background:#2563eb;color:#fff;border:0;border-radius:10px;padding:10px 14px;text-decoration:none;cursor:pointer}.btn-secondary{background:#475569}.alert{padding:12px;border-radius:12px;margin-bottom:14px}.alert-ok{background:#dcfce7;color:#166534}.alert-bad{background:#fee2e2;color:#991b1b}.login{display:flex;min-height:100vh;align-items:center;justify-content:center;background:#0f172a}.login-card{background:#fff;border-radius:18px;padding:28px;width:390px;box-shadow:0 20px 60px rgba(0,0,0,.25)}pre{white-space:pre-wrap;background:#0f172a;color:#e5e7eb;padding:14px;border-radius:12px;overflow:auto}.muted{color:#64748b}.topology{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap}.node{border:2px solid #2563eb;border-radius:16px;padding:18px;min-width:180px;text-align:center;background:#eff6ff}.arrow{font-size:32px;color:#2563eb}.status-dot{display:inline-block;width:10px;height:10px;border-radius:50%;background:#94a3b8;margin-right:6px}.status-dot.ok{background:#22c55e}.status-dot.bad{background:#ef4444}@media(max-width:1000px){.sidebar{position:relative;width:100%;height:auto}.app{display:block}.main{margin-left:0;width:100%}.grid{display:block}.card{margin-bottom:16px}.form-grid{grid-template-columns:1fr}}