/* Exploring Patterns – Diagram toolbox + drop zone */

.ep-diagram-layout
{
    display: flex;
    gap: 16px;
    align-items: stretch;
    width: 100%;
    min-height: 600px;
}

.ep-toolbox-column
{
    display: flex;
    flex-direction: column; /* Stack children vertically */
}

.ep-toolbox
{
    flex: 0 0 170px;
    border: 1px solid #e1e1e1;
    border-radius: 6px;
    padding: 20px;
    background: #fafafa;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ep-toolbox-shapes
{
    
}

.ep-tips
{
    margin-bottom: 15px;
    padding: 5px;
}


.ep-tips-items ul
{
    columns: 2;
    -webkit-columns: 2;
    -moz-columns: 2;
}



.ep-toolbox-title
{
    font-weight: 600;
    margin-bottom: 20px;
    font-size: 20px;
    color: #333;
    text-align: center;
}

.ep-toolbox-item
{
    cursor: grab;
    user-select: none;
    padding: 10px 12px;
    background: #fff;
    border: 1px solid #c8c8c8;
    border-radius: 4px;
    text-align: center;
    font-size: 13px;
    color: #222;
    transition: box-shadow 0.15s ease, transform 0.05s ease;
    margin-bottom: 10px;
}

.ep-toolbox-item:hover
{
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.ep-toolbox-item:active
{
    cursor: grabbing;
    transform: scale(0.98);
}

.ep-toolbox-item--circle
{
    border-radius: 50%;
    padding: 20px 8px;
}

.ep-toolbox-item--diamond
{
    width: 70px;
    height: 70px;
    margin-left: auto;
    margin-right: auto;
    transform: rotate(45deg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.ep-toolbox-item--diamond > span
{
    transform: rotate(-45deg);
    display: inline-block;
}

.ep-diagram-surface
{
    flex: 1 1 auto;
    min-width: 0;
}