:root{
  --bg:#0f1720; --panel:#16202c; --panel2:#1c2836; --line:#263546;
  --txt:#e6edf3; --muted:#8aa0b4; --brand:#2f81f7; --brand2:#1f6feb;
  --ok:#2ea043; --warn:#d29922; --err:#f85149; --radius:12px;
}
*{box-sizing:border-box}
body{margin:0;font-family:'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--txt);font-size:14px}
a{color:inherit;text-decoration:none}

.layout{display:flex;min-height:100vh}
.sidebar{width:240px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.brand{padding:18px 20px;font-size:17px;font-weight:700;border-bottom:1px solid var(--line);color:#fff}
.brand i{color:var(--brand)}
.sidebar nav{flex:1;padding:10px 0;overflow-y:auto}
.sidebar nav a{display:flex;align-items:center;gap:10px;padding:11px 20px;color:var(--muted);font-weight:500;border-left:3px solid transparent}
.sidebar nav a i{width:18px;text-align:center}
.sidebar nav a:hover{background:var(--panel2);color:var(--txt)}
.sidebar nav a.active{background:var(--panel2);color:#fff;border-left-color:var(--brand)}
.nav-sep{padding:14px 20px 6px;font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:#5b7187}
.sidebar-foot{padding:14px 20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;color:var(--muted)}

.content{flex:1;padding:26px 32px;max-width:1300px}
h1{font-size:22px;margin:0 0 18px}
h2{font-size:16px;margin:0 0 12px}
.muted{color:var(--muted)}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:22px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.card .k{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.4px}
.card .v{font-size:28px;font-weight:700;margin-top:6px}
.card .v small{font-size:13px;color:var(--muted);font-weight:500}

.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:20px}
.row{display:flex;gap:20px;flex-wrap:wrap}
.row>*{flex:1;min-width:260px}

table{width:100%;border-collapse:collapse}
th,td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.4px}
tr:hover td{background:var(--panel2)}
.empty{padding:40px;text-align:center;color:var(--muted)}

label{display:block;margin:12px 0 5px;color:var(--muted);font-size:13px;font-weight:500}
input,select,textarea{width:100%;padding:10px 12px;background:var(--panel2);border:1px solid var(--line);border-radius:8px;color:var(--txt);font-size:14px;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0 18px}

.btn{display:inline-flex;align-items:center;gap:7px;padding:10px 16px;background:var(--brand);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer}
.btn:hover{background:var(--brand2)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--txt)}
.btn-ghost:hover{background:var(--panel2)}
.btn-ok{background:var(--ok)} .btn-warn{background:var(--warn)} .btn-err{background:var(--err)}
.btn-sm{padding:6px 11px;font-size:12.5px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}

.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600}
.b-ok{background:rgba(46,160,67,.15);color:#3fb950}
.b-warn{background:rgba(210,153,34,.15);color:#d29922}
.b-err{background:rgba(248,81,73,.15);color:#f85149}
.b-muted{background:rgba(138,160,180,.15);color:var(--muted)}

.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-weight:500}
.alert-ok{background:rgba(46,160,67,.15);border:1px solid var(--ok);color:#3fb950}
.alert-error{background:rgba(248,81,73,.15);border:1px solid var(--err);color:#f85149}

/* login */
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg)}
.login-box{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:38px;width:360px}
.login-box .brand{border:none;text-align:center;font-size:22px;padding:0 0 6px}
.login-box p{text-align:center;color:var(--muted);margin:0 0 20px}
.login-box .btn{width:100%;justify-content:center;margin-top:18px}

@media(max-width:820px){.sidebar{width:62px}.sidebar .brand span,.sidebar nav a span,.sidebar-foot span,.nav-sep{display:none}.content{padding:18px}}

/* ===== Monitoreo / estadísticas ===== */
.sel-inline{background:var(--panel2);color:var(--txt);border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:13px}
.rt-legend{display:flex;gap:18px;margin:4px 0 8px;font-size:13px;color:var(--muted)}
.rt-legend b{color:var(--txt)}
.rt-legend .dot,.dot{display:inline-block;width:10px;height:10px;border-radius:50%;vertical-align:middle;margin-right:5px}
.live-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#22c55e;margin-right:7px;box-shadow:0 0 0 0 rgba(34,197,94,.6);animation:pulse 1.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(34,197,94,.6)}70%{box-shadow:0 0 0 7px rgba(34,197,94,0)}100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}}
.on-list{display:flex;flex-direction:column;gap:2px;max-height:300px;overflow-y:auto}
.on-list-tall{max-height:460px}
.on-item{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:8px;border:1px solid transparent}
.on-item b{font-weight:600}
.on-item:hover{background:var(--panel2)}
.on-item.clickable{cursor:pointer}
.on-item.clickable:hover{border-color:var(--brand)}
#on-filtro,input#on-filtro{width:100%;background:var(--panel2);color:var(--txt);border:1px solid var(--line);border-radius:8px;padding:8px 10px}
.bars{display:flex;align-items:flex-end;gap:10px;height:190px;padding-top:10px;overflow-x:auto}
.bar-col{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;min-width:54px;flex:1}
.bar{width:60%;min-height:3px;border-radius:5px 5px 0 0;transition:height .3s}
.bar-val{font-size:11px;color:var(--muted);margin-bottom:5px;white-space:nowrap}
.bar-lbl{font-size:11px;color:var(--muted);margin-top:6px}
canvas{border:1px solid var(--line);border-radius:10px;background:#0b1220}