* { box-sizing: border-box; }

  .plot-container {
    background: white;
    border: 1px solid #d5dbe2;
    border-radius: 8px;
    overflow: hidden;
  }

  canvas {
    display: block;
    width: 100%;
    height: min(65vh, 650px);
    min-height: 350px;
    cursor: grab;
    touch-action: none;
  }

  canvas.dragging { cursor: grabbing; }