.cards-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.card {
  background: #f0f0f1;
  color: #eee;
  padding: 1rem;
  border-radius: 6px;
  width: 220px;
  box-shadow: 0 0 6px rgba(0,0,0,0.5);
  font-family: sans-serif;
}

.card-header {
  font-weight: bold;
  font-size: 1.2rem;
  margin-bottom: 0.3rem;
}

.card-description {
  font-size: 0.9rem;
  margin-bottom: 0.7rem;
  color: #bbb;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-change.positive {
  color: #4CAF50;
}

.card-change.negative {
  color: #f44336;
}
.main-graph {
  background-color: #f9f9f9 !important; /* black background */
  padding: 20px;
  border-radius: 8px;
}

#chartCanvas {
  display: block;
  height: 300px !important; /* fix height */
  max-width: 100%;
}