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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  min-height: 100vh;
  color: #e2e8f0;
  padding: 2rem;
}

.dashboard {
  max-width: 1100px;
  margin: 0 auto;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #f8fafc;
}

.subtitle {
  margin-top: 0.35rem;
  color: #94a3b8;
  font-size: 0.95rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.25);
  font-weight: 600;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #64748b;
  box-shadow: 0 0 0 0 rgba(100, 116, 139, 0.5);
}

.status-badge.up .status-dot {
  background: #22c55e;
  animation: pulse 2s infinite;
}

.status-badge.down .status-dot {
  background: #ef4444;
}

.status-badge.up {
  border-color: rgba(34, 197, 94, 0.35);
  color: #bbf7d0;
}

.status-badge.down {
  border-color: rgba(239, 68, 68, 0.35);
  color: #fecaca;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.card {
  background: rgba(30, 41, 59, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(96, 165, 250, 0.35);
}

.card-label {
  color: #94a3b8;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.card-value {
  font-size: 2.4rem;
  font-weight: 700;
  color: #f8fafc;
  line-height: 1.1;
}

.status-value.up {
  color: #4ade80;
}

.status-value.down {
  color: #f87171;
}

.card-hint {
  margin-top: 0.75rem;
  color: #64748b;
  font-size: 0.85rem;
}

.footer {
  margin-top: 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: #64748b;
  font-size: 0.85rem;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(34, 197, 94, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
  }
}

@media (max-width: 600px) {
  body {
    padding: 1rem;
  }

  .card-value {
    font-size: 2rem;
  }
}