Change relative color calculations from percents to decimal

Fixes #1

Author: JoelCDL

css/base.css

@@ -3,11 +3,11 @@
 /* Modal body */
 
 .cookie-notice {
-  --color-blue: oklch(from steelblue calc(l - 16%) c h);
+  --color-blue: oklch(from steelblue calc(l - 0.15) c h);
   --color-gold: oklch(from orange l c calc(h + 10));
   --color-tan: oklch(from antiquewhite l calc(c - 0.025) h);
-  --color-black-blue: oklch(from steelblue calc(l - 35%) calc(c - 0.05) h);
-  --color-light-blue: oklch(from deepskyblue calc(l - 5%) c h);
+  --color-black-blue: oklch(from midnightblue l calc(c - 0.1) h);
+  --color-light-blue: oklch(from deepskyblue calc(l - 0.05) c h);
 
   position: fixed;
   inset: auto 0 0;