Rewrite index page

source/_assets/base_style.scss

@@ -22,25 +22,9 @@ h6 {
     font-weight: normal;
 }
 
-%external-link-icon {
-    display: inline-block;
-    margin-left: 0.6em;
-    color: $base-font-color;
-    font-size: $base-font-size - 4px;
-
-    @media (max-width: $first-media-step) {
-        font-size: $base-font-size - 2px;
-    }
-}
-
-a[href*="//github.com"]:after {
-    @extend %external-link-icon;
-    font-family: 'Font Awesome 5 Brands', serif;
-    content: '\f09b';
-}
-
-a[target="_blank"]:not([href*="//github.com"]):after {
-    @extend %external-link-icon;
-    font-family: 'Font Awesome 5 Free', serif;
-    content: '\f35d';
+.hr-line {
+    height: 0;
+    display: block;
+    border-bottom: 1px solid #eee;
+    margin: 2em 0;
 }

source/_assets/components/external-link-markers.scss

@@ -0,0 +1,22 @@
+%external-link-icon {
+    display: inline-block;
+    margin-left: 0.6em;
+    color: $base-font-color;
+    font-size: $base-font-size - 4px;
+
+    @media (max-width: $first-media-step) {
+        font-size: $base-font-size - 2px;
+    }
+}
+
+a[href*="//github.com"]:after {
+    @extend %external-link-icon;
+    font-family: 'Font Awesome 5 Brands', serif;
+    content: '\f09b';
+}
+
+a[target="_blank"]:not([href*="//github.com"]):after {
+    @extend %external-link-icon;
+    font-family: 'Font Awesome 5 Free', serif;
+    content: '\f35d';
+}

source/_assets/components/social.scss

@@ -0,0 +1,17 @@
+.social {
+    list-style: none;
+    padding: 0;
+    margin: 3em 0;
+    display: block;
+    text-align: center;
+
+    &__item {
+        display: inline-block;
+        margin: 0 0.5em;
+        font-size: 180%;
+    }
+
+    &__link {
+        color: inherit;
+    }
+}

source/_assets/index/index.js

@@ -0,0 +1 @@
+import '../components/social.scss';

source/_assets/layout_internal/style.scss

@@ -13,11 +13,7 @@
             right: $mobile-margin;
         }
     }
-}
 
-.hr-line {
-    height: 0;
-    display: block;
-    border-bottom: 1px solid #eee;
-    margin: 2em 0;
+    // extensions
+    @import '../components/external-link-markers';
 }

source/_assets/vars.scss

@@ -2,7 +2,7 @@ $base-font-family: 'PT Serif', serif;
 
 // Базовый размер шрифта
 $base-font-size: 20px;
-$base-font-color: #333;
+$base-font-color: #000;
 
 // Ширина страницы
 $preferred-width: 700px;