body {
  margin: 0;
  font-family: "Poppins", sans-serif;
  background-color: #f9fafb;
  color: #1f2937;
}

.header {
  background: #22c55e;
  color: white;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
}

.main {
  padding: 2rem;
}

.status-banner {
  background: #94a3b8;
  color: white;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  transition: all 0.3s ease;
  text-align: center;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.card {
  background: white;
  border-radius: 12px;
  padding: 1rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  text-align: center;
  font-weight: 500;
}

.card h3 {
  color: #1e293b;
  margin-bottom: 0.5rem;
}

.chart-card {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  height: 350px;
}

.chart-card h3 {
  margin-bottom: 1rem;
}