body {
          font-family: "Inter", sans-serif;
        }
    
        #pcbCanvas {
          width: 500px !important;
          height: 300px !important;
          display: block;
          margin: 0 auto;
          background: #fafafa;
          border-radius: 0.375rem;
          border: 1px solid #d1d5db;
          cursor: crosshair;
        }
    
        #canvasContainer {
          margin-top: 1rem;
          margin-bottom: 0.5rem;
          text-align: center;
          position: relative;
        }
    
        /* Tooltip style */
        #tooltip {
          position: absolute;
          pointer-events: none;
          background: white;
          border: 1px solid #ccc;
          padding: 8px 12px;
          border-radius: 6px;
          box-shadow: 0 2px 8px rgb(0 0 0 / 0.15);
          font-size: 13px;
          line-height: 1.3;
          color: #111827;
          max-width: 260px;
          display: none;
          z-index: 10;
          white-space: nowrap;
        }
    
        #tooltip strong {
          font-weight: 600;
        }
    
        .table-row-clickable {
            cursor: pointer;
        }
        .table-row-clickable:hover {
            background-color: #e5e7eb; /* Tailwind gray-200 */
        }
        .message-box {
          position: fixed;
          top: 50%;
          left: 50%;
          transform: translate(-50%, -50%);
          background-color: white;
          padding: 24px;
          border-radius: 8px;
          box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
          z-index: 1000;
          display: none;
          text-align: center;
          min-width: 300px;
        }