:root {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface: #1a1a19;
  --surface-2: #232321;
  --border: rgba(255, 255, 255, 0.10);
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --muted: #898781;
  --grid: #2c2c2a;
  --axis: #383835;
  --accent: #3987e5;

  --good: #0ca30c;
  --warning: #fab219;
  --serious: #ec835a;
  --critical: #d03b3b;
  --idle: #8a96a8;
  --offline: #5d5c58;

  --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
  --radius: 8px;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--page); color: var(--ink); }
body { font: 14px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif; }
button, input, select { font: inherit; color: inherit; }
a { color: var(--accent); }
.muted { color: var(--muted); }
[hidden] { display: none !important; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 10px 20px; background: var(--surface); border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand strong { font-size: 17px; display: block; letter-spacing: .3px; }
.brand span { color: var(--muted); font-size: 12px; }
.status-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-left: auto; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px;
  border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border);
  font-size: 13px; color: var(--ink-2); cursor: pointer;
}
.chip b { color: var(--ink); font-variant-numeric: tabular-nums; }
.chip.hot { border-color: var(--critical); box-shadow: 0 0 0 1px var(--critical) inset; }
.topbar-right { display: flex; align-items: center; gap: 14px; }
.conn { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.conn i { width: 8px; height: 8px; border-radius: 50%; background: var(--offline); }
.conn.ok i { background: var(--good); }
.conn.bad i { background: var(--critical); }
.clock { font-variant-numeric: tabular-nums; color: var(--ink-2); font-size: 13px; }
.icon-btn { background: none; border: 1px solid var(--border); border-radius: 6px; padding: 3px 8px; cursor: pointer; }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 2px; padding: 0 20px; background: var(--surface); border-bottom: 1px solid var(--border); overflow-x: auto; }
.tabs button {
  background: none; border: 0; padding: 11px 16px; cursor: pointer; color: var(--ink-2);
  border-bottom: 2px solid transparent; white-space: nowrap;
}
.tabs button.active { color: var(--ink); border-bottom-color: var(--accent); }
.badge { display: inline-block; min-width: 20px; padding: 0 6px; margin-left: 4px; border-radius: 10px; background: var(--critical); color: #fff; font-size: 12px; }

main { padding: 16px 20px 40px; max-width: 1800px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; }

/* ---------- KPI tiles ---------- */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 14px; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; }
.kpi .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
.kpi .value { font-size: 28px; font-weight: 600; margin-top: 2px; }
.kpi .value small { font-size: 13px; color: var(--muted); font-weight: 400; }
.kpi .sub { color: var(--ink-2); font-size: 12px; }
.kpi.critical { border-left: 4px solid var(--critical); }
.kpi.warning { border-left: 4px solid var(--warning); }
.kpi.good { border-left: 4px solid var(--good); }

/* ---------- Toolbar ---------- */
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.toolbar.compact { margin: 0; }
.toolbar select, .toolbar input[type=search], .form-grid input, .ack-form input, .ack-form select, table select, table input {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 6px 10px;
}
.toolbar input[type=search] { min-width: 180px; }
.seg { display: inline-flex; background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 2px; flex-wrap: wrap; }
.seg button { background: none; border: 0; padding: 5px 12px; border-radius: 4px; cursor: pointer; color: var(--ink-2); }
.seg button.active { background: var(--axis); color: var(--ink); }
.check { display: inline-flex; gap: 6px; align-items: center; color: var(--ink-2); }
.btn { background: var(--accent); border: 0; color: #fff; padding: 7px 14px; border-radius: 6px; cursor: pointer; text-decoration: none; display: inline-block; }
.btn.ghost { background: transparent; border: 1px solid var(--border); color: var(--ink-2); }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: default; }

/* ---------- Sectores y tarjetas ---------- */
.sector { margin-bottom: 18px; }
.sector-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin: 4px 0 8px; }
.sector-head h2 { font-size: 15px; margin: 0; }
.sector-head span { color: var(--muted); font-size: 13px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--good);
  border-radius: var(--radius); padding: 10px 12px; cursor: pointer; transition: background .15s;
}
.card:hover { background: var(--surface-2); }
.card.warning { border-left-color: var(--warning); }
.card.critical { border-left-color: var(--critical); background: color-mix(in srgb, var(--critical) 10%, var(--surface)); }
.card.idle { border-left-color: var(--idle); }
.card.offline { border-left-color: var(--offline); opacity: .7; }
.card-top { display: flex; justify-content: space-between; align-items: center; gap: 6px; }
.card-top strong { font-size: 15px; }
.card .model { color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.psm-row { display: grid; grid-template-columns: 44px 1fr auto; gap: 8px; align-items: center; margin: 5px 0; }
.psm-row .lbl { color: var(--muted); font-size: 12px; }
.psm-row .val { font-variant-numeric: tabular-nums; font-weight: 600; text-align: right; min-width: 66px; }
.psm-row .val small { color: var(--muted); font-weight: 400; font-size: 11px; }
.meter { position: relative; height: 6px; background: var(--grid); border-radius: 3px; }
.meter i { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 3px; background: var(--ink-2); }
.meter i.warning { background: var(--warning); }
.meter i.critical { background: var(--critical); }
.meter b { position: absolute; top: -3px; bottom: -3px; width: 2px; background: var(--muted); }
.card-foot { display: flex; justify-content: space-between; color: var(--ink-2); font-size: 12px; margin-top: 8px; border-top: 1px solid var(--border); padding-top: 6px; font-variant-numeric: tabular-nums; }
.card-foot .warn { color: var(--warning); }
.card-foot .crit { color: var(--serious); }

/* ---------- Pill de estado (siempre ícono + texto) ---------- */
.pill { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.pill.normal { background: color-mix(in srgb, var(--good) 20%, transparent); color: #7fd67f; }
.pill.warning { background: color-mix(in srgb, var(--warning) 22%, transparent); color: var(--warning); }
.pill.critical { background: var(--critical); color: #fff; }
.pill.idle { background: color-mix(in srgb, var(--idle) 22%, transparent); color: var(--idle); }
.pill.offline { background: var(--surface-2); color: var(--muted); }
.pill.done { background: var(--surface-2); color: var(--ink-2); }
.blink { animation: blink 1.2s ease-in-out infinite; }
@keyframes blink { 50% { opacity: .55; } }

/* ---------- Paneles ---------- */
.section-title { font-size: 15px; margin: 24px 0 10px; color: var(--ink-2); font-weight: 600; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; margin-bottom: 14px; min-width: 0; }
.panel h3 { margin: 0 0 10px; font-size: 14px; }
.panel h3 small { color: var(--muted); font-weight: 400; margin-left: 6px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.panel-head h3 { margin: 0; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); gap: 14px; }
@media (max-width: 520px) { .grid-2 { grid-template-columns: 1fr; } main { padding: 12px; } }
.chart-box { position: relative; height: 280px; }
.chart-box.short { height: 200px; }
.chart-box.tall { height: 320px; }
.note { color: var(--ink-2); font-size: 13px; }
.code { background: var(--page); border: 1px solid var(--border); border-radius: 6px; padding: 10px; overflow-x: auto; font-size: 12px; color: var(--ink-2); }

/* ---------- Tablas ---------- */
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data th { text-align: left; color: var(--muted); font-weight: 500; font-size: 12px; padding: 6px 8px; border-bottom: 1px solid var(--axis); white-space: nowrap; }
table.data th[data-sort] { cursor: pointer; }
table.data th[data-sort]:hover { color: var(--ink); }
table.data td { padding: 6px 8px; border-bottom: 1px solid var(--grid); font-variant-numeric: tabular-nums; }
table.data tr.click { cursor: pointer; }
table.data tr.click:hover td { background: var(--surface-2); }
table.data .num { text-align: right; }
td .warn { color: var(--warning); font-weight: 600; }
td .crit { color: #ff7b7b; font-weight: 600; }
.empty { color: var(--muted); padding: 18px; text-align: center; }

/* ---------- Alarmas pendientes ---------- */
.alarm-item {
  display: grid; grid-template-columns: 120px 1fr auto; gap: 14px; align-items: start;
  padding: 12px; border: 1px solid var(--border); border-left: 4px solid var(--warning);
  border-radius: var(--radius); margin-bottom: 8px; background: var(--surface-2);
}
.alarm-item.critical { border-left-color: var(--critical); }
.alarm-item.ended { opacity: .85; border-left-style: dashed; }
.alarm-item .title { font-weight: 600; font-size: 15px; }
.alarm-item .meta { color: var(--ink-2); font-size: 13px; margin-top: 2px; }
.alarm-item .action { margin-top: 6px; font-size: 13px; color: var(--ink); background: var(--page); border-radius: 6px; padding: 6px 10px; border: 1px solid var(--border); }
.alarm-item .action b { color: var(--warning); }
.alarm-item.critical .action b { color: #ff7b7b; }
.ack-form { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.ack-form input[name=note] { flex: 1; min-width: 200px; }
@media (max-width: 700px) { .alarm-item { grid-template-columns: 1fr; } }

/* ---------- Config ---------- */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.form-grid label { display: flex; flex-direction: column; gap: 4px; color: var(--ink-2); font-size: 13px; }
.form-grid label span { display: flex; align-items: center; gap: 6px; color: var(--muted); }
.form-grid input { width: 110px; }
.form-actions { grid-column: 1 / -1; display: flex; gap: 10px; align-items: center; }

/* ---------- Toasts ---------- */
.toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 50; max-width: min(380px, calc(100vw - 32px)); }
.toast { background: var(--surface-2); border: 1px solid var(--border); border-left: 4px solid var(--warning); border-radius: var(--radius); padding: 10px 12px; box-shadow: 0 6px 20px rgba(0,0,0,.5); cursor: pointer; animation: slide .25s ease-out; }
.toast.critical { border-left-color: var(--critical); }
.toast.cleared { border-left-color: var(--good); }
.toast b { display: block; }
.toast span { color: var(--ink-2); font-size: 13px; }
@keyframes slide { from { transform: translateY(10px); opacity: 0; } }

.band-key { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 12px; flex-wrap: wrap; }
.band-key i { display: inline-block; width: 14px; height: 10px; border-radius: 2px; margin-left: 8px; }
.band-key i.idle { background: rgba(138,150,168,0.35); }
.band-key i.offline { background: rgba(208,59,59,0.30); }

.card .reason { font-size: 12px; color: var(--warning); margin: -2px 0 4px; }
.card .reason.crit { color: #ff7b7b; }
.card .reason span { color: var(--muted); }

.demo-banner { background: #104281; color: #fff; text-align: center; font-size: 13px; padding: 6px 16px; }
.demo-banner a { color: #cde2fb; margin-left: 8px; }