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

html, body {
  font-family: "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(circle at top, #0b1020, #020617);
  color: #e5e7eb;
  height: 100%;
}

/* VARIABLES */
:root {
  --accent: #38bdf8;
  --ok: #22c55e;
  --warn: #f59e0b;
  --bad: #ef4444;
  --panel: rgba(11,18,36,0.9);
}

/* TOPBAR */
.topbar {
  position: fixed;
  top: 0;
  width: 100%;
  height: 70px;
  background: rgba(2,6,23,0.85);
  backdrop-filter: blur(12px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 30px;
  z-index: 100;
  border-bottom: 1px solid rgba(56,189,248,0.15);
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
}

/* LAYOUT */
.container {
  display: grid;
  grid-template-columns: 260px 1fr;
  padding-top: 70px;
  min-height: 100vh;
}

/* SIDEBAR */
.sidebar {
  background: rgba(2,6,23,0.95);
  padding: 25px;
  border-right: 1px solid rgba(56,189,248,0.15);
}

.sensor {
  padding: 12px 15px;
  margin-bottom: 12px;
  border-radius: 12px;
  background: rgba(10,20,40,0.7);
  font-size: 0.9rem;
}

.sensor.ok { border-left: 4px solid var(--ok); }
.sensor.warn { border-left: 4px solid var(--warn); }
.sensor.bad { border-left: 4px solid var(--bad); }

/* DASHBOARD */
.dashboard {
  padding: 30px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 25px;
}

.panel {
  background: var(--panel);
  border-radius: 18px;
  padding: 25px;
  border: 1px solid rgba(56,189,248,0.2);
  box-shadow: 0 0 35px rgba(56,189,248,0.08);
}

.panel h2 {
  color: var(--accent);
  margin-bottom: 15px;
}

/* OVERVIEW */
.overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
  gap: 20px;
}

.info-card {
  background: rgba(10,20,40,0.6);
  border-radius: 14px;
  padding: 18px;
  border: 1px solid rgba(56,189,248,0.2);
}

.label {
  font-size: .75rem;
  color: #7dd3fc;
}

.value {
  font-size: 1.2rem;
  font-weight: bold;
}

.value.online {
  color: var(--ok);
}

/* ENERGÍA */
.progress {
  height: 18px;
  background: #020617;
  border-radius: 12px;
  overflow: hidden;
}

.energy {
  height: 100%;
  width: 80%;
  background: linear-gradient(90deg, var(--ok), var(--accent));
  transition: width 1s;
}

/* LOGS */
.logs {
  background: rgba(2,6,23,0.95);
  padding: 15px 25px;
  font-size: .8rem;
  border-top: 1px solid rgba(56,189,248,0.15);
}
/* ======================
   RESPONSIVE - MOBILE
====================== */
@media (max-width: 768px) {

  body {
    overflow-y: auto;
  }

  /* TOPBAR */
  .topbar {
    padding: 0 15px;
    height: 60px;
  }

  .logo {
    font-size: 1.1rem;
    letter-spacing: 2px;
  }

  /* CONTENEDOR */
  .container {
    grid-template-columns: 1fr;
    padding-top: 60px;
  }

  /* SIDEBAR */
  .sidebar {
    display: none;
  }

  /* DASHBOARD */
  .dashboard {
    grid-template-columns: 1fr;
    padding: 18px;
    gap: 18px;
  }

  /* INFO GENERAL */
  .overview {
    grid-template-columns: 1fr 1fr;
  }

  .info-card.wide {
    grid-column: span 2;
  }

  /* PANELS */
  .panel {
    padding: 18px;
  }

  .panel h2 {
    font-size: 1rem;
  }

  /* GRAFICO */
  canvas {
    height: 180px;
  }

  /* LOGS */
  .logs {
    font-size: 0.7rem;
    padding: 10px 15px;
  }
}