.cillinder-product-form {
    margin: 20px 0;
}

.cillinder-cylinders-wrapper {
    margin-bottom: 20px;
}

.cillinder-cylinder-item {
    border: 1px solid #ddd;
    padding: 20px;
    margin-bottom: 15px;
    background: #f9f9f9;
    border-radius: 4px;
}

.cillinder-cylinder-item h4 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 16px;
    font-weight: 600;
}

.cillinder-cylinder-item .form-row {
    margin-bottom: 15px;
}

.cillinder-cylinder-item .form-row label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.cillinder-cylinder-item .form-row input[type="number"],
.cillinder-cylinder-item .form-row select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.cillinder-cylinder-item .form-row input[type="checkbox"] {
    margin-right: 5px;
}

.cillinder-extra-key-info {
    display: block;
    margin-top: 5px;
    font-size: 12px;
    color: #666;
}

.add-cylinder,
.remove-cylinder {
    margin-top: 10px;
}

.remove-cylinder {
    background: #dc3232;
    color: #fff;
    border-color: #dc3232;
}

.remove-cylinder:hover {
    background: #a00;
    border-color: #a00;
    color: #fff;
}

@media (min-width: 768px) {
    .cillinder-cylinder-item .form-row-first,
    .cillinder-cylinder-item .form-row-last {
        width: 48%;
        float: left;
    }

    .cillinder-cylinder-item .form-row-first {
        margin-right: 4%;
    }

    .cillinder-cylinder-item .form-row-wide {
        clear: both;
    }
}