:root{
  --bg:#05060f; --card:rgba(20,25,50,.55); --neon:#00f0ff; --neon2:#a855f7;
  --txt:#e6f1ff; --muted:#8ea2c0;
}
*{box-sizing:border-box;margin:0;padding:0;font-family:'Segoe UI',system-ui,sans-serif}
body{background:var(--bg);color:var(--txt);min-height:100vh;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(0,240,255,.15), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(168,85,247,.15), transparent 40%);
}
a{color:var(--neon);text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:2rem}
.card{
  background:var(--card);backdrop-filter:blur(14px);
  border:1px solid rgba(0,240,255,.25);
  border-radius:16px;padding:1.8rem;margin-bottom:1.5rem;
  box-shadow:0 0 30px rgba(0,240,255,.08), inset 0 0 20px rgba(0,240,255,.04);
}
h1,h2,h3{background:linear-gradient(90deg,var(--neon),var(--neon2));
  -webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:1rem}
.btn{
  display:inline-block;padding:.8rem 1.6rem;border-radius:10px;border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--neon),var(--neon2));color:#000;font-weight:700;
  transition:.2s; text-decoration:none;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 0 20px rgba(0,240,255,.6)}
.btn-ghost{background:transparent;border:1px solid var(--neon);color:var(--neon)}
input,select,textarea{
  width:100%;padding:.8rem;margin:.4rem 0 1rem;background:rgba(255,255,255,.05);
  border:1px solid rgba(0,240,255,.3);border-radius:10px;color:var(--txt);font-size:1rem;
}
input:focus,select:focus{outline:none;border-color:var(--neon);box-shadow:0 0 12px rgba(0,240,255,.4)}
table{width:100%;border-collapse:collapse;margin-top:1rem}
th,td{padding:.8rem;text-align:left;border-bottom:1px solid rgba(0,240,255,.15)}
th{color:var(--neon);font-size:.85rem;text-transform:uppercase;letter-spacing:1px}
.badge{padding:.25rem .7rem;border-radius:20px;font-size:.8rem;font-weight:700}
.online{background:rgba(0,255,140,.15);color:#00ff8c;border:1px solid #00ff8c}
.offline{background:rgba(255,60,60,.15);color:#ff3c3c;border:1px solid #ff3c3c}
.alerta{background:rgba(255,190,0,.15);color:#ffbe00;border:1px solid #ffbe00}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.2rem}
.stat{text-align:center}
.stat .num{font-size:2.4rem;font-weight:800;
  background:linear-gradient(90deg,var(--neon),var(--neon2));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{color:var(--muted);font-size:.9rem;letter-spacing:1px}
.topbar{display:flex;justify-content:space-between;align-items:center;
  padding:1rem 2rem;border-bottom:1px solid rgba(0,240,255,.2);margin-bottom:2rem}
.hero{text-align:center;padding:5rem 1rem 3rem}
.hero h1{font-size:clamp(2rem,6vw,4rem);margin-bottom:1rem}
.hero p{color:var(--muted);font-size:1.2rem;max-width:750px;margin:0 auto 2rem}
.feature{display:flex;gap:1rem;align-items:flex-start}
.feature .icon{font-size:1.8rem}
.alerta-msg{padding:1rem;background:rgba(255,60,60,.15);border:1px solid #ff3c3c;
  border-radius:10px;margin-bottom:1rem}