DECK INFO
Looking down. Lights that shine downward rather than up or out create soft pools of light along a stairway. There's enough light to let you see where you're going, but it's not jarring or shining in your face. You don't need to light every tread. Instead, aim for just enough light to keep things safe while allowing the next lit area to draw you farther up (or down).
Utilizing vinyl or PVC products for the beams as well as a permacast column would provide a no rot or minimal rot solution.... There are some great products on the market now that are also able to be structural. ...runners along top to 'shade' the area somewhat - if they touch home or are affixed to the house, the base must be an engineered slap or piers - if this type of structure moved independently of the home and it's attached, disaster can await.
Sidelights will cast a glow across the steps. The ones in the low wall lining each side of these steps are unobtrusive but provide sufficient lighting at night.
Q