body {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 0; /* Removed padding */
    overflow: hidden; /* Prevent scrollbars */
}

canvas {
    border: none; /* Removed border */
    background-color: #fff;
    /* margin-bottom: 0; Removed as canvas takes full height now */
}

#shapeHud {
    position: fixed;
    top: 10px;
    left: 10px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 14px;
    z-index: 1000; /* Ensure it's on top */
}