* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-main: #0f172a;
  --bg-header: #111827;
  --bg-card: #1e293b;
  --bg-panel: #111827;

  --border: #334155;
  --text-main: #f8fafc;
  --text-soft: #cbd5e1;
  --text-muted: #94a3b8;

  --yellow: #facc15;
  --green: #22c55e;
  --green-dark: #14532d;
  --red: #ef4444;
  --red-dark: #7f1d1d;
  --orange: #f59e0b;

  --shadow: 0 12px 28px rgba(0,0,0,0.28);
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(250,204,21,0.08), transparent 28%),
    radial-gradient(circle at bottom right, rgba(59,130,246,0.08), transparent 24%),
    var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
}

/* ==========================
   HEADER
========================== */

.header {
  background: linear-gradient(135deg, #111827, #162033, #1e293b);
  padding: 24px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 3px solid var(--yellow);
  box-shadow: 0 10px 30px rgba(0,0,0,0.28);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 24px;
}

/* Logo grande y mejor encuadrado */
.logo-box {
  width: 170px;
  height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 18px;
  padding: 0;
  overflow: hidden;
  box-shadow: inset 0 0 22px rgba(255,255,255,0.025);
}

.logo-tekiot {
  width: 118%;
  height: 118%;
  object-fit: contain;
  display: block;
}

.titulo-box h1 {
  font-size: 42px;
  letter-spacing: 9px;
  color: var(--yellow);
  line-height: 1;
  font-weight: 800;
}

.titulo-box p {
  margin-top: 12px;
  color: var(--text-soft);
  font-size: 18px;
}

.estado-general {
  padding: 14px 24px;
  border-radius: 14px;
  font-weight: 800;
  background: var(--red-dark);
  color: white;
  min-width: 145px;
  text-align: center;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow);
}

.estado-general.online {
  background: #166534;
}

/* ==========================
   CONTENEDOR
========================== */

.container {
  padding: 34px 28px;
  max-width: 1380px;
  margin: auto;
}

/* ==========================
   KPI
========================== */

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-bottom: 26px;
}

.kpi-card {
  background: linear-gradient(180deg, #1e293b, #182235);
  padding: 24px 26px;
  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  min-height: 118px;
  position: relative;
  overflow: hidden;
}

.kpi-card::after {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  right: -48px;
  top: -48px;
  background: rgba(255,255,255,0.035);
  border-radius: 50%;
}

.kpi-card span {
  display: block;
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 12px;
}

.kpi-card strong {
  font-size: 38px;
  color: var(--text-main);
  position: relative;
  z-index: 1;
}

.kpi-card.abierto strong {
  color: #f87171;
}

.kpi-card.cerrado strong {
  color: #4ade80;
}

.kpi-card.senal strong {
  color: #ffffff;
}

/* ==========================
   INFO PANEL
========================== */

.info-panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  background: rgba(17,24,39,0.9);
  padding: 20px;
  border-radius: 20px;
  border: 1px solid var(--border);
  margin-bottom: 34px;
  box-shadow: var(--shadow);
}

.info-item {
  padding: 6px 4px;
}

.info-panel span {
  display: block;
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.info-panel strong {
  color: var(--text-main);
  font-size: 17px;
}

/* ==========================
   SECCIONES
========================== */

.section-title {
  margin-bottom: 20px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-end;
}

.section-title h2 {
  color: var(--yellow);
  margin-bottom: 6px;
  font-size: 28px;
}

.section-title p {
  color: var(--text-muted);
  font-size: 16px;
}

.refresh-info {
  color: var(--text-muted);
  font-size: 13px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  padding: 8px 12px;
  border-radius: 999px;
}

/* ==========================
   CARROS
========================== */

.carros-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-bottom: 34px;
}

.carro-card {
  background: linear-gradient(180deg, #1e293b, #182235);
  border-radius: 20px;
  padding: 26px 24px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  min-height: 126px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.carro-card:hover {
  transform: translateY(-2px);
  border-color: rgba(250,204,21,0.45);
}

.carro-card::before {
  content: "";
  position: absolute;
  height: 7px;
  top: 0;
  left: 0;
  right: 0;
  background: #64748b;
}

.carro-card.abierto::before {
  background: var(--red);
}

.carro-card.cerrado::before {
  background: var(--green);
}

.carro-card.desconocido::before {
  background: var(--yellow);
}

.carro-card h3 {
  font-size: 24px;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.estado-carro {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.3px;
}

.estado-carro.abierto {
  background: #8b1c1c;
  color: #fecaca;
}

.estado-carro.cerrado {
  background: #166534;
  color: #bbf7d0;
}

.estado-carro.desconocido {
  background: #713f12;
  color: #fde68a;
}

/* ==========================
   ALARMAS
========================== */

.alarmas {
  background: rgba(17,24,39,0.92);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 26px;
  box-shadow: var(--shadow);
}

.alarmas-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.alarmas h2 {
  color: var(--yellow);
  font-size: 28px;
}

.alarmas-header span {
  color: var(--text-muted);
  font-size: 14px;
}

.alarma-item {
  padding: 14px 16px;
  border-radius: 12px;
  background: #8b1c1c;
  color: #fecaca;
  margin-bottom: 12px;
  font-weight: 800;
  border: 1px solid rgba(248,113,113,0.25);
}

.sin-alarmas {
  color: #86efac;
  font-weight: 800;
  background: rgba(20,83,45,0.45);
  border: 1px solid rgba(34,197,94,0.25);
  padding: 14px 16px;
  border-radius: 12px;
}

/* ==========================
   FOOTER
========================== */

.footer {
  text-align: center;
  padding: 22px;
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ==========================
   RESPONSIVE
========================== */

@media (max-width: 1050px) {

  .kpi-grid,
  .info-panel,
  .carros-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .titulo-box h1 {
    font-size: 36px;
    letter-spacing: 7px;
  }

}

@media (max-width: 760px) {

  .header {
    flex-direction: column;
    gap: 18px;
    align-items: flex-start;
  }

  .header-left {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .estado-general {
    width: 100%;
  }

  .section-title {
    flex-direction: column;
    align-items: flex-start;
  }

}

@media (max-width: 560px) {

  .container {
    padding: 22px 16px;
  }

  .kpi-grid,
  .info-panel,
  .carros-grid {
    grid-template-columns: 1fr;
  }

  .logo-box {
    width: 150px;
    height: 84px;
  }

  .logo-tekiot {
    width: 120%;
    height: 120%;
  }

  .titulo-box h1 {
    font-size: 30px;
    letter-spacing: 5px;
  }

  .titulo-box p {
    font-size: 15px;
  }

}