Step 7
Now we need to mask the group so that any shading we apply stays within the borders of the shape. Select the background shape again and go Cmd/Ctrl + C > Cmd/Ctrl + F > Cmd/Ctrl + Shift + ] to copy it and paste in the same place, then bring the copy to the front. Click the Make/Release Clipping Mask button in the bottom left of the Layers palette to mask the group.
Step 8
Now we need to add the shading around the edges of the shape. Select the background shape and Cmd/Ctrl + C > Cmd/Ctrl + F to copy and paste on top of itself. Knock out the fill of this new shape and change the stroke colour values to C – 0 M – 100 Y – 100 K – 32. Thicken the stroke to 10px.
Step 9
In the menu bar, click Effect. Don’t then click Apply Gaussian Blur, as this will use the last-used settings. We want to use slightly different settings for the shading – click Gaussian Blur and set the radius to 40px.
Step 10
In the Transparency palette, change the blending mode to Multiply and reduce the opacity to 90%.
Step 11
Double-click on an empty space to exit the group. Then, holding down Alt/Opt + Shift, click and drag a copy of the group directly above the original. Make it slightly smaller and place behind the original group by hitting Cmd/Ctrl + [.
Step 12
Double-click the new group to enter it, then select the background shape and change the fill to a deeper orange. You may find it difficult to select the background shape as the Gaussian Blur effect on the shading may overlap it: to get around this, place the shading line at the back of the group by selecting it and hitting Cmd/Ctrl + Shift + [, and then change the colour of the background shape, before placing it at the back again by selecting it and hitting Cmd/Ctrl + Shift + [.