How can I change the background color and font color?

I don’t like the color of https://jahad9819jjj.github.io

src is here.

Hi, this is OT for this forum, but you can change background color or color, generally speaking, by targeting html or body.

body {
  color: shark;
}

At assets/_base.scss

main{
+  background-color: $dark;
+  color: $light;
  padding-bottom: 45px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

Add the above lines and run hugo server, we will get the following output.

Before

After

$dark and $light is defined at _variables.scss

$padding: 10px;
$margin: 25px;
$primary-color: #04a763;
$hover: #04a763;
$bright: #ff4447;
$light: #fff;
$dark: #24292e;
$text: #343434;
$pale: lighten($dark, 20%);
$mute: darken($light, 20%);
$linear: linear-gradient(to right bottom, darken($primary-color, 10%), $primary-color);
$font: 'Metropolis', sans-serif;
$gray: rgb(241,243,241);