.dxf-preview-container {
    padding: 10px;
}

.preview-section {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #dee2e6;
}

.preview-section:last-child {
    border-bottom: none;
}

.preview-section h5 {
    margin-bottom: 10px;
    color: #495057;
    font-size: 1.1em;
}

.layer-list {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    padding: 10px;
}

.layer-item {
    margin: 5px 0;
    padding: 5px;
    border-radius: 3px;
    transition: background-color 0.2s;
}

.layer-item:hover {
    background-color: #f8f9fa;
}

.layer-color {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 1px solid #ccc;
    border-radius: 2px;
    margin-left: 5px;
    vertical-align: middle;
}

.entity-preview table {
    font-size: 0.9em;
}

.entity-preview th {
    position: sticky;
    top: 0;
    background-color: #fff;
    z-index: 1;
}