/* Simple grid layout for multiple charts */
  .chart-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;              /* space between charts */
    width: 100%;
  }

  .chart-box {
    flex: 1 1 400px;        /* responsive: minimum 400px wide, grows as needed */
    max-width: 400px;       /* prevent overly wide charts on big screens */
    background: white;
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  }
 
 .chart-box h3 {
  margin-top: 0;
  margin-bottom: 0;
 }
/*
  canvas {
    width: 100% !important; 
    height: 300px !important;
  }
*/