/* Shape toolbar section */
#shape-sidebar {
    display: none;
    flex-direction: row;
    gap: 8px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 0;
    position: static;
    transform: none;
    z-index: auto;
    align-items: center;
}

#shape-sidebar .btn {
    width: 44px;
    height: 44px;
    padding: 0;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

/* Optional slight separation from pen/highlighter/eraser group */
#shape-sidebar {
    margin-left: 8px;
}

/* Keep old layout tweak only if you still need it */
#pdf-container {
    box-sizing: border-box;
}