/* ============================================================
   AlterMonitor — tema oscuro con acentos AlterPOS
   ============================================================ */
:root {
  --primary: #0099AA;
  --primary-dark: #00788a;
  --secondary: #E65C00;
  --ok: #4ade80;
  --ok-bg: #0e3b2e;
  --warn: #fbbf24;
  --warn-bg: #3b2e0e;
  --crit: #f87171;
  --crit-bg: #3b0e17;
  --fondo: #0b0f17;
  --panel: #16202f;
  --borde: #2a3448;
  --texto: #e2e8f0;
  --muted: #8fa3bf;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--fondo); color: var(--texto);
  font-family: "Segoe UI", system-ui, sans-serif; line-height: 1.5;
}
code { background: #0f1420; border: 1px solid var(--borde); border-radius: 4px;
  padding: 1px 6px; font-family: Consolas, monospace; font-size: .85em; }
.muted { color: var(--muted); font-weight: 400; }

/* ---------- barra superior ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50; display: flex; align-items: center;
  gap: 16px; padding: 10px 22px; background: #0f1420cc; backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--borde);
}
.marca { font-weight: 700; font-size: 1.1rem; white-space: nowrap; }
.marca span { color: var(--secondary); }
.banner {
  flex: 1; text-align: center; font-weight: 700; font-size: .92rem;
  border-radius: 10px; padding: 7px 14px; letter-spacing: .3px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.banner-ok    { background: var(--ok-bg);   color: var(--ok);   border: 1px solid #14532d; }
.banner-warn  { background: var(--warn-bg); color: var(--warn); border: 1px solid #78560e; }
.banner-crit  { background: var(--crit-bg); color: var(--crit); border: 1px solid #7f1d1d; }
.banner-cargando { background: var(--panel); color: var(--muted); border: 1px solid var(--borde); }
.top-der { display: flex; align-items: center; gap: 12px; white-space: nowrap; }
.modo-badge { background: var(--secondary); color: #fff; font-size: .7rem; font-weight: 700;
  border-radius: 999px; padding: 2px 10px; text-transform: uppercase; }
.reloj { color: var(--muted); font-size: .85rem; font-variant-numeric: tabular-nums; }
.salir { color: var(--crit); text-decoration: none; font-size: .85rem;
  border: 1px solid var(--borde); border-radius: 8px; padding: 4px 12px; }
.salir:hover { background: var(--crit-bg); }

/* ---------- layout ---------- */
main { max-width: 1280px; margin: 0 auto; padding: 20px 22px 60px; }
.panel {
  background: var(--panel); border: 1px solid var(--borde); border-radius: 14px;
  padding: 16px 18px;
}
.panel h3 { font-size: .95rem; color: var(--texto); margin-bottom: 12px; }
.panel h4 { font-size: .8rem; color: var(--muted); text-transform: uppercase;
  letter-spacing: .6px; margin: 16px 0 6px; }
.fila-graficas { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.fila-doble    { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }

/* ---------- KPIs ---------- */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.kpi {
  background: var(--panel); border: 1px solid var(--borde); border-radius: 12px;
  padding: 12px 10px; text-align: center;
}
.kpi b { display: block; font-size: 1.45rem; font-variant-numeric: tabular-nums; }
.kpi small { color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .4px; }
.kpi.caliente b { color: var(--warn); }
.kpi.critico b  { color: var(--crit); }
.kpi.sano b     { color: var(--ok); }

/* ---------- tablas ---------- */
.tabla { width: 100%; border-collapse: collapse; font-size: .86rem; }
.tabla th { text-align: left; color: var(--muted); font-size: .72rem; text-transform: uppercase;
  letter-spacing: .5px; padding: 6px 8px; border-bottom: 1px solid var(--borde); }
.tabla td { padding: 7px 8px; border-bottom: 1px solid #1e2a3d; }
.estado-pill { display: inline-block; border-radius: 999px; padding: 2px 10px;
  font-size: .75rem; font-weight: 700; }
.estado-activo   { background: var(--ok-bg);   color: var(--ok); }
.estado-caido    { background: var(--crit-bg); color: var(--crit); }
.estado-desconocido { background: #26324a; color: var(--muted); }

/* ---------- seguridad ---------- */
.seg-resumen { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.seg-resumen div { background: #0f1420; border: 1px solid var(--borde); border-radius: 10px;
  padding: 10px; text-align: center; }
.seg-resumen b { display: block; font-size: 1.3rem; color: var(--crit); }
.seg-resumen small { color: var(--muted); font-size: .7rem; }
.top-ips { margin-left: 20px; font-size: .85rem; font-family: Consolas, monospace; }
.top-ips li { padding: 2px 0; }
.top-ips li span { color: var(--muted); font-family: "Segoe UI", sans-serif; }
.logins { list-style: none; font-size: .82rem; color: var(--muted); }
.logins li { padding: 2px 0; font-family: Consolas, monospace; }

/* ---------- alertas ---------- */
.alerta-item { border-radius: 10px; padding: 9px 12px; margin-bottom: 8px; font-size: .85rem;
  display: flex; justify-content: space-between; gap: 10px; }
.alerta-critica { background: var(--crit-bg); border: 1px solid #7f1d1d; color: var(--crit); }
.alerta-advertencia { background: var(--warn-bg); border: 1px solid #78560e; color: var(--warn); }
.alerta-resuelta { background: #10192a; border: 1px solid var(--borde); color: var(--muted); }
.alerta-item time { font-size: .72rem; white-space: nowrap; opacity: .8; }
.alertas-lista { list-style: none; font-size: .83rem; }
.alertas-lista li { padding: 4px 0; border-bottom: 1px dashed #1e2a3d; }

/* ---------- logs ---------- */
.log-grupo { margin-bottom: 10px; }
.log-grupo summary { cursor: pointer; font-size: .82rem; font-weight: 700; color: var(--primary); }
.log-grupo pre { background: #0a0e16; border: 1px solid var(--borde); border-radius: 8px;
  padding: 10px; font-size: .72rem; overflow-x: auto; max-height: 220px; overflow-y: auto;
  color: #a8b7cc; margin-top: 6px; white-space: pre-wrap; word-break: break-all; }

/* ---------- banner flotante sin datos ---------- */
.banner-flotante {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: var(--crit-bg); color: var(--crit); border: 1px solid #7f1d1d;
  border-radius: 12px; padding: 12px 22px; font-size: .9rem; z-index: 100;
  box-shadow: 0 8px 24px rgba(0,0,0,.5);
}

footer { margin-top: 28px; text-align: center; color: var(--muted); font-size: .78rem; }

/* ---------- login ---------- */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card {
  background: var(--panel); border: 1px solid var(--borde); border-radius: 16px;
  padding: 34px 38px; width: 340px; display: flex; flex-direction: column; gap: 14px;
}
.login-logo { font-size: 1.4rem; font-weight: 700; text-align: center; }
.login-logo span { color: var(--secondary); }
.login-sub { text-align: center; color: var(--muted); font-size: .85rem; margin-top: -8px; }
.login-card label { font-size: .8rem; color: var(--muted); display: flex; flex-direction: column; gap: 5px; }
.login-card input {
  background: #0f1420; border: 1px solid var(--borde); border-radius: 8px;
  color: var(--texto); padding: 9px 12px; font-size: .95rem;
}
.login-card input:focus { outline: 2px solid var(--primary); border-color: transparent; }
.login-card button {
  background: var(--primary); color: #fff; border: none; border-radius: 8px;
  padding: 10px; font-size: .95rem; font-weight: 700; cursor: pointer;
}
.login-card button:hover { background: var(--primary-dark); }
.login-error { background: var(--crit-bg); color: var(--crit); border: 1px solid #7f1d1d;
  border-radius: 8px; padding: 8px 12px; font-size: .83rem; }

@media (max-width: 900px) {
  .fila-graficas, .fila-doble { grid-template-columns: 1fr; }
  .banner { font-size: .75rem; }
}