:root{--bg:#f4f7fa;--panel:#fff;--ink:#182331;--muted:#708091;--line:#e4eaf0;--blue:#1769e0;--cyan:#1eb4c8;--green:#14a86b;--amber:#f0a525;--red:#e34d59;--nav:#101923}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.45 Inter,ui-sans-serif,system-ui,-apple-system,sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}aside{position:fixed;inset:0 auto 0 0;width:238px;background:var(--nav);color:#d4dde6;padding:24px 14px;display:flex;flex-direction:column;z-index:5}.brand{font-size:20px;font-weight:750;display:flex;align-items:center;gap:11px;padding:0 10px 26px}.brand span{background:linear-gradient(145deg,#3084f4,#17c1c3);width:35px;height:35px;display:grid;place-items:center;border-radius:9px;color:white}.brand small,.user small{display:block;color:#738291;font-size:10px;font-weight:500}.nav-group{font-size:10px;text-transform:uppercase;letter-spacing:1.3px;color:#647281;margin:17px 11px 7px}nav button{border:0;background:none;color:#aeb9c4;display:flex;width:100%;align-items:center;gap:12px;padding:10px 12px;border-radius:7px;text-align:left}nav button:hover,nav button.active{background:#1c2936;color:#fff}.nav-icon{width:18px;text-align:center}.user{display:flex;gap:10px;align-items:center;border-top:1px solid #28333e;margin-top:auto;padding:17px 8px 0}.user>b{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#254c70;color:#9ed4ff;font-size:12px}main{margin-left:238px}header{height:88px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 32px}h1{font-size:22px;margin:0}header p{margin:3px 0 0;color:var(--muted);font-size:12px}#menu{display:none}.head-actions{display:flex;gap:10px;align-items:center}.live{font-size:10px;color:var(--green);font-weight:800;letter-spacing:1px}.icon{border:1px solid var(--line);background:white;border-radius:7px;padding:8px 11px}#app{padding:24px 32px 50px;max-width:1500px;margin:auto}.grid{display:grid;gap:16px}.kpis{grid-template-columns:repeat(4,1fr)}.kpi,.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px}.kpi{padding:18px}.kpi label{font-size:11px;color:var(--muted);font-weight:650;text-transform:uppercase;letter-spacing:.6px}.kpi strong{display:block;font-size:27px;margin:7px 0}.trend{font-size:11px;color:var(--green)}.two{grid-template-columns:1.6fr 1fr;margin-top:16px}.panel{padding:19px}.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:17px}.panel-head h2,h2{font-size:15px;margin:0}.muted{color:var(--muted)}.btn{border:0;background:var(--blue);color:#fff;padding:9px 14px;border-radius:7px;font-weight:650;font-size:12px}.btn.secondary{border:1px solid var(--line);background:white;color:var(--ink)}.btn.danger{background:#fff0f1;color:var(--red)}.btn.small{padding:6px 9px}.chart{height:230px;width:100%;overflow:visible}.chart text{font-size:9px;fill:#8492a1}.legend{display:flex;gap:18px;margin:8px 0}.legend span{font-size:11px;color:var(--muted)}.legend i{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:5px}.health{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.health>div{border:1px solid var(--line);border-radius:8px;padding:14px}.health strong{font-size:20px;display:block;margin-top:4px}.bar{height:5px;background:#edf1f5;border-radius:3px;margin-top:10px}.bar i{display:block;height:100%;border-radius:3px;background:var(--blue)}table{border-collapse:collapse;width:100%}th{text-align:left;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.5px;padding:10px 8px;border-bottom:1px solid var(--line)}td{padding:11px 8px;border-bottom:1px solid var(--line);font-size:12px}.badge{font-size:10px;padding:4px 7px;border-radius:12px;background:#edf3fb;color:#356080}.badge.online,.badge.active,.badge.done,.badge.healthy{background:#e8f8f1;color:#128354}.badge.warning,.badge.high{background:#fff4df;color:#a56b08}.badge.open{background:#edf3ff;color:#2767bd}.tabs{display:flex;gap:3px;border-bottom:1px solid var(--line);margin-bottom:18px}.tabs button{border:0;background:none;padding:10px 13px;color:var(--muted)}.tabs button.active{color:var(--blue);border-bottom:2px solid var(--blue)}.rack-layout{display:grid;grid-template-columns:290px 1fr;gap:16px}.device-list{display:flex;flex-direction:column;gap:8px}.device{border:1px solid var(--line);background:white;border-radius:8px;padding:12px;text-align:left}.device.active{border-color:var(--blue);box-shadow:0 0 0 2px #dbe9ff}.device b,.device small{display:block}.device small{color:var(--muted)}.connection{display:grid;grid-template-columns:1fr 60px 1fr;align-items:center;border:1px solid var(--line);padding:12px;border-radius:8px;margin:8px 0}.connection .line{height:2px;background:var(--cyan);position:relative}.connection .line:before,.connection .line:after{content:'';position:absolute;width:7px;height:7px;border-radius:50%;background:var(--cyan);top:-3px}.connection .line:after{right:0}.port-row{display:grid;grid-template-columns:1.3fr .8fr .8fr 1fr auto;gap:8px;align-items:center;padding:9px 0;border-bottom:1px solid var(--line)}.timeline{border-left:1px solid var(--line);margin-left:6px}.event{position:relative;padding:0 0 18px 24px}.event:before{content:'';position:absolute;left:-5px;top:3px;width:9px;height:9px;background:var(--blue);border-radius:50%;box-shadow:0 0 0 4px white}.event time{font-size:10px;color:var(--muted)}.event b{display:block;font-size:12px}.event p{margin:2px 0;color:var(--muted);font-size:11px}.toolbar{display:flex;justify-content:space-between;gap:10px;margin-bottom:15px}.toolbar input,.toolbar select{min-width:190px}.field{display:flex;flex-direction:column;gap:5px;margin-bottom:12px}.field label{font-size:11px;font-weight:650;color:#596878}.field input,.field select,.field textarea,.toolbar input,.toolbar select{border:1px solid #cfdae4;background:white;padding:9px;border-radius:6px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 13px}.modal{position:fixed;inset:0;background:#0b1520aa;display:grid;place-items:center;z-index:20}.modal.hidden{display:none}.dialog{width:min(620px,92vw);max-height:88vh;overflow:auto;background:white;border-radius:12px;padding:24px;position:relative}.close{position:absolute;right:16px;top:12px;border:0;background:none;font-size:24px}.form-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}#toast{position:fixed;right:25px;bottom:25px;background:#162331;color:white;padding:12px 16px;border-radius:8px;opacity:0;transition:.2s;z-index:30}#toast.show{opacity:1}.empty{text-align:center;color:var(--muted);padding:35px}.snmp-card{border:1px solid var(--line);border-radius:8px;padding:15px;margin-bottom:10px;display:grid;grid-template-columns:1fr auto}.dot{width:8px;height:8px;border-radius:50%;display:inline-block;background:var(--green);margin-right:5px}@media(max-width:900px){aside{transform:translateX(-100%)}aside.open{transform:none}main{margin:0}#menu{display:inline;border:0;background:none}.kpis,.two,.rack-layout{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}header,#app{padding-left:18px;padding-right:18px}.port-row{grid-template-columns:1fr 1fr}.connection{grid-template-columns:1fr 25px 1fr}}