From 0f7465677cd10d2571926f2798ad06e1bc6fd000 Mon Sep 17 00:00:00 2001
From: Yasuaki Uechi <y@uechi.io>
Date: Fri, 7 Feb 2020 12:57:54 +0900
Subject: [PATCH] feat: dark mode

---
 _layouts/post.html |  8 ++++----
 _sass/post.scss    | 24 ++++++++++++------------
 css/index.scss     | 30 +++++++++++++++++++++++++++---
 3 files changed, 43 insertions(+), 19 deletions(-)

diff --git a/_layouts/post.html b/_layouts/post.html
index a5c04ab..3be7615 100644
--- a/_layouts/post.html
+++ b/_layouts/post.html
@@ -52,10 +52,10 @@ layout: default
   rel="stylesheet"
   href="https://unpkg.com/highlight.js@9.18.1/styles/night-owl.css"
 />
-<script src="https://unpkg.com/highlight.js@9.18.1/lib/highlight.js"></script>
-<script src="https://unpkg.com/highlight.js@9.18.1/lib/languages/go.js"></script>
-<script src="https://unpkg.com/highlight.js@9.18.1/lib/languages/scss.js"></script>
-<script src="https://unpkg.com/highlight.js@9.18.1/lib/languages/lua.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.18.1/highlight.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.18.1/languages/go.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.18.1/languages/scss.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.18.1/languages/lua.min.js"></script>
 <script>
   hljs.initHighlightingOnLoad()
 </script>
\ No newline at end of file
diff --git a/_sass/post.scss b/_sass/post.scss
index 561e29c..33e5e99 100644
--- a/_sass/post.scss
+++ b/_sass/post.scss
@@ -14,15 +14,15 @@
 .article-list__item__excerpt {
   margin-top: 5px;
   font-size: 20px;
-  color: #989898;
+  color: var(--tone);
   line-height: 1.6em;
   word-break: break-all;
 }
 
 a.article-list__item__button {
-  border: 1px solid #989898;
+  border: 1px solid var(--tone);
   border-radius: 3px;
-  color: #989898;
+  color: var(--tone);
   font-family: "Open Sans", sans-serif;
   font-size: 14px;
   display: inline-block;
@@ -31,8 +31,8 @@ a.article-list__item__button {
   text-transform: uppercase;
 
   &:hover {
-    background-color: #989898;
-    color: #fff;
+    background-color: var(--tone);
+    color: var(--background);
   }
 
   @media screen and (max-width: $break-small) {
@@ -42,8 +42,8 @@ a.article-list__item__button {
     padding: 15px;
 
     &:hover {
-      background-color: #fff;
-      color: #989898;
+      background-color: var(--background);
+      color: var(--tone);
     }
   }
 }
@@ -83,12 +83,12 @@ a.article-list__item__button {
 }
 
 .article__pubdate {
-  color: #989898;
+  color: var(--tone);
   font-size: 14px;
   font-weight: normal;
   font-family: sans-serif;
   margin-bottom: 10px;
-  border: 1px solid #989898;
+  border: 1px solid var(--tone);
   display: inline-block;
   padding: 5px 20px;
 
@@ -179,7 +179,7 @@ a.article-list__item__button {
   }
 
   blockquote {
-    border-left: 5px solid red;
+    border-left: 5px solid var(--accent);
     padding-left: 20px;
     margin: 0;
   }
@@ -207,8 +207,8 @@ a.article-list__item__button {
     margin: 10px 0;
     padding: 20px;
     display: block;
-    background: black;
-    color: white;
+    background: var(--text);
+    color: var(--background);
     text-align: center;
     border-radius: 2px;
   }
diff --git a/css/index.scss b/css/index.scss
index 03b5d4c..1894698 100644
--- a/css/index.scss
+++ b/css/index.scss
@@ -6,6 +6,24 @@
 $break-small: 500px;
 $break-large: 840px;
 
+:root {
+  --background: #fff;
+  --text: #000;
+  --accent: #4f33e8;
+  --highlight: #f6f6f6;
+  --tone: #989898;
+}
+
+@media (prefers-color-scheme: dark) {
+  :root {
+    --background: #261e3a;
+    --text: #e2dfea;
+    --accent: #7033e8;
+    --highlight: #140d25;
+    --tone: #989898;
+  }
+}
+
 body {
   width: 900px;
   margin: 0 auto;
@@ -17,6 +35,8 @@ body {
   -webkit-font-feature-settings: "kern", "palt", "pwid";
   -moz-font-feature-settings: "kern", "palt", "pwid";
   -moz-font-feature-settings: "kern=1", "palt", "pwid";
+  background: var(--background);
+  color: var(--text);
 
   @media screen and (max-width: $break-large) {
     width: auto;
@@ -34,6 +54,7 @@ body {
   border-radius: 3px;
   // font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace;
   // font-size: 14px;
+  background: #0e0127 !important;
   padding: 12px 18px !important;
   line-height: 1.6em !important;
 }
@@ -42,7 +63,7 @@ code {
 }
 p code {
   padding: 3px 10px;
-  background: #f6f6f6;
+  background: var(--highlight);
   border-radius: 3px;
   font-size: 16px;
 }
@@ -50,7 +71,7 @@ a:hover,
 a:active,
 a:link,
 a:visited {
-  color: black;
+  color: var(--text);
   text-decoration: none;
 }
 h1,
@@ -66,7 +87,7 @@ hr {
   display: block;
   width: 100%;
   height: 1px;
-  background-color: #dbdbdb;
+  background-color: var(--highlight);
   border: 0;
   margin: 40px 0;
 }
@@ -86,6 +107,9 @@ hr {
 
   .logo {
     margin: 10px 0 10px;
+    @media (prefers-color-scheme: dark) {
+      filter: invert(1);
+    }
   }
 
   .menu {