Font size and colour tweaks

site/assets/style/_colours.sass

 // Site-wide colour definitions
 
+$darkest-gray: #2a2f35
 $dark-gray: #565656
 $gray: #787878
 $light-gray: #efefef
 $light-green: #eeffee
 $green: #669966
 
+$text: $darkest-gray
+
 $update-border: $green
 $update-background: $light-green
 

site/assets/style/_text.sass

 // Properties relating to text
 
 body
-  color: $dark-gray
+  color: $text
   font-family: "Aileron Regular", Helvetica, sans-serif
-  font-size: 16pt
+  font-size: 18px
   font-weight: 400
   line-height: 1.75em
   -webkit-text-size-adjust: none
 
-  @media screen and (max-width: 1800px)
-    font-size: 12pt
-
 a
   color: $cyan
   text-decoration-skip-ink: auto

site/assets/style/modules/_articles.sass

   header p
     position: relative
     margin: -1em 0 1.5em 0
-    color: #939393
+    color: $gray
     font-size: 1.25em
     line-height: 1.5em
 

site/assets/style/modules/_headings.sass

 // Header elements (h1..h6)
 
 h1, h2, h3, h4, h5, h6
-  color: $dark-gray
+  color: $darkest-gray
   font-weight: 800
   font-family: "League Spartan", sans-serif
   line-height: 1.5em