index.css

:root {
  --box-shadow-1:
    0 .125rem .125rem 0 color(black a(14%)),
    0 .0625rem .3125rem 0 color(black a(12%)),
    0 .1875rem .0625rem -.125rem color(black a(20%));

  --box-shadow-2:
    0 .25rem .3125rem 0 color(black a(14%)),
    0 .0625rem .625rem 0 color(black a(12%)),
    0 .25rem .3125rem -.1875rem color(black a(30%));

  --box-shadow-3:
    0 .375rem .625rem 0 color(black a(14%)),
    0 .1875rem 1.125rem 0 color(black a(12%)),
    0 .3125rem .625rem -.125rem color(black a(30%));

  --box-shadow-4:
    0 .5rem .625rem .0625rem color(black a(14%)),
    0 .1875rem 1.125rem .125rem color(black a(12%)),
    0 .5rem .625rem -.125rem color(black a(30%));

  --box-shadow-5:
    0 1rem 1.5rem .125rem color(black a(14%)),
    0 .375rem 1.875rem .3125rem color(black a(12%)),
    0 .75rem 1.1875rem -.1875rem color(black a(30%));

  --box-shadow-6:
    0 1.1875rem 1.5rem color(black a(22%)),
    0 .9375rem 4.75rem color(black a(30%));
}