body {
  background-color: #f4f6f9;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar {
  box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

.card-kpi {
  border: none;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: transform 0.2s ease;
}

.card-kpi:hover {
  transform: translateY(-2px);
}

.icon-box {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.chart-container {
  position: relative;
  margin: auto;
  height: 320px;
}