body[data-season="spring"]{background:radial-gradient(ellipse at 50% 40%,#86ad89,#3c6b59 65%,#254b43)}
body[data-season="summer"]{background:radial-gradient(ellipse at 50% 40%,#53967f,#245c50 65%,#173f39)}
body[data-season="autumn"]{background:radial-gradient(ellipse at 50% 40%,#af9c75,#6f7157 65%,#3f5146)}
body[data-season="winter"]{background:radial-gradient(ellipse at 50% 40%,#acc6c9,#6e929a 65%,#3c606b)}