Resolve "use CSS for header"

kontor-vue/src/assets/base.css

@@ -1,5 +1,5 @@
 /* color palette from <https://github.com/vuejs/theme> */
-:root {
+/* :root {
   --vt-c-white: #ffffff;
   --vt-c-white-soft: #f8f8f8;
   --vt-c-white-mute: #f2f2f2;
@@ -19,7 +19,7 @@
   --vt-c-text-light-2: rgba(60, 60, 60, 0.66);
   --vt-c-text-dark-1: var(--vt-c-white);
   --vt-c-text-dark-2: rgba(235, 235, 235, 0.64);
-}
+} */
 
 /* semantic color variables for this project */
 :root {
@@ -36,7 +36,7 @@
   --section-gap: 160px;
 }
 
-@media (prefers-color-scheme: dark) {
+/* @media (prefers-color-scheme: dark) {
   :root {
     --color-background: var(--vt-c-black);
     --color-background-soft: var(--vt-c-black-soft);
@@ -48,39 +48,4 @@
     --color-heading: var(--vt-c-text-dark-1);
     --color-text: var(--vt-c-text-dark-2);
   }
-}
-
-*,
-*::before,
-*::after {
-  box-sizing: border-box;
-  margin: 0;
-  font-weight: normal;
-}
-
-body {
-  min-height: 100vh;
-  color: var(--color-text);
-  background: var(--color-background);
-  transition:
-    color 0.5s,
-    background-color 0.5s;
-  line-height: 1.6;
-  font-family:
-    Inter,
-    -apple-system,
-    BlinkMacSystemFont,
-    'Segoe UI',
-    Roboto,
-    Oxygen,
-    Ubuntu,
-    Cantarell,
-    'Fira Sans',
-    'Droid Sans',
-    'Helvetica Neue',
-    sans-serif;
-  font-size: 15px;
-  text-rendering: optimizeLegibility;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-}
+} */