Automatically adjust colour scheme for "dark mode".

[homepage.git] / content / style.scss

diff --git a/content/style.scss b/content/style.scss
index d53717d9d0f692a02d356d0cb5c27574b981d1a8..5f2ef9686cff45de2ac8899ff196ddd7aa5ee193 100644 (file)
--- a/content/style.scss
+++ b/content/style.scss
@@ -17,22 +17,23 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-// colour definitions
-$backgroundcolour:  #ffffff;
-$foregroundcolour:  #000000;
+@import "lib/colourmap.scss";
 
-$linkdefaultcolour: #0000cd;
-$linkactivecolour:  #ff0000;
-$linkvisitedcolour: #800080;
+@include defcolours
+    ( $background:  #ffffff #000000
+    , $foreground:  #000000 #ffffff
 
-$ruledefaultcolour: #d3d3d3;
-$rulestrongcolour:  #696969;
+    , $linkdefault: #0000cd #a3aaff
+    , $linkactive:  #ff0000
+    , $linkvisited: #800080 #e493f7
+    , $focusring:   #628cb2
 
-$annotationcolour:  #708090;
+    , $annotation:  #708090
+    , $tableshade:  #f5f5f5 #101010
 
-$tableshadecolour:  #f5f5f5;
-
-$focusringcolour: #628cb2;
+    , $ruledefault: #d3d3d3 #494949
+    , $rulestrong:  #696969 #939393
+    );
 
 @mixin header_size($maxwidth, $fontsize) {
     font-size: $fontsize;
@@ -40,19 +41,28 @@ $focusringcolour: #628cb2;
 }
 
 body {
-    background-color: $backgroundcolour;
-    color: $foregroundcolour;
     font-family: sans-serif;
     margin: 1em;
+
+    @include usecolours
+        ( $background-color: background
+        , $color: foreground
+        );
 }
 
-a:link { color: $linkdefaultcolour; border-color: $linkdefaultcolour; }
-a:visited { color: $linkvisitedcolour; border-color: $linkvisitedcolour; }
-a:active { color: $linkactivecolour; border-color: $linkactivecolour; }
+a:link {
+    @include usecolours($color: linkdefault, $border-color: linkdefault);
+}
+a:visited {
+    @include usecolours($color: linkvisited, $border-color: linkvisited);
+}
+a:active {
+    @include usecolours($color: linkactive, $border-color: linkactive);
+}
 
 @supports (outline-style: auto) {
     a:link { border-width: 0; }
-    a:focus { outline: auto $focusringcolour; }
+    a:focus { @include usecolour(outline, focusring, auto); }
     li, td, dt { &>a:link { border: solid 1px transparent; } }
 }
 
@@ -88,7 +98,7 @@ p.img {
     }
 
     small {
-        color: $foregroundcolour;
+        @include usecolours($color: foreground);
         text-align: justify;
         @media (max-width: 24em) { text-align: left; }
         padding: 0.5ex;
@@ -123,7 +133,7 @@ hr {
     clear: both;
     margin: 0.5em 0;
     border: 0;
-    border-top: 1px solid $ruledefaultcolour;
+    @include usecolour(border-top, ruledefault, 1px solid);
 }
 
 kbd {
@@ -141,16 +151,17 @@ kbd {
 }
 
 .permalink {
+    @include usecolours($color: annotation);
     font-size: small;
-    color: $annotationcolour;
 
     a:link, a:visited { color: inherit; }
+    a:active { @include usecolours($color: linkactive); }
     @media not screen { visibility: hidden; }
 }
 
 // General table styles.
 table {
-    border: 1px solid $ruledefaultcolour;
+    @include usecolour(border-top, ruledefault, 1px solid);
     border-collapse: collapse;
     width: 100%;
 }
@@ -171,18 +182,20 @@ td, th {
     margin: 0;
 }
 
-thead>tr, tbody>tr { border: solid $ruledefaultcolour; }
-th, thead>tr { border-bottom: 1px solid $rulestrongcolour; }
-tbody+tbody { border-bottom: 1px solid $ruledefaultcolour; }
+thead>tr, tbody>tr { @include usecolour(border, ruledefault, solid); }
+th, thead>tr { @include usecolour(border-bottom, rulestrong, 1px solid); }
+tbody+tbody { @include usecolour(border-bottom, ruledefault, 1px solid); }
 *>table, *>th { border: none; }
 thead>tr { border-width: 1px; }
 tbody>tr { border-width: 0 1px; }
 
-td + td { box-shadow: -1px 0 $backgroundcolour; }
+td + td {
+    @include usecolour(box-shadow, background, -1px 0);
+}
 
 tbody>tr {
-    &:nth-of-type(even) { background-color: $tableshadecolour; }
-    &:last-child { border-bottom: solid 1px $ruledefaultcolour; }
+    &:nth-of-type(even) { @include usecolours($background-color: tableshade); }
+    &:last-child { @include usecolour(border-bottom, ruledefault, solid 1px); }
 }
 
 // Specific table styles
@@ -313,10 +326,10 @@ $clickynames: name, date, size;
     #{"input.clicky-#{$col+$focuslabel}"}>span:first-child
     , #{"input.clicky-#{$col}-rev#{$focuslabel}"} .svg
     {
-        border-color: $foregroundcolour;
+        @include usecolours($border-color: foreground);
         @at-root { @supports (outline-style: auto) { & {
+            @include usecolour(outline, focusring, auto);
             border-color: transparent;
-            outline: auto $focusringcolour;
         }}}
     }
 }
@@ -340,12 +353,12 @@ thead.clicky label {
         padding-right: 2px;
     }
 
-    &:active { color: $linkactivecolour; }
+    &:active { @include usecolours($color: linkactive); }
     &:first-child:active>span, &~label:active>.svg {
-        border-color: $linkactivecolour;
+        @include usecolours($border-color: linkactive);
         @at-root { @supports (outline-style: auto) { & {
+            @include usecolour(outline, focusring, auto);
             border-color: transparent;
-            outline: auto $focusringcolour;
         }}}
     }
 
@@ -414,7 +427,7 @@ table.filelist {
     }
 }
 
-#footer p { color: $annotationcolour; }
+#footer p { @include usecolours($color: annotation); }
 #article-info p { font-style: italic; }
 
 .wbr:after { content: "\200b"; }
@@ -440,3 +453,18 @@ ul.ordered > {
     #sitetitle * { float: none; }
     #footer { padding: 0 1em; }
 }
+
+// page-specific dark mode styles
+@media (min-width: 35em) {
+    #page_weblog_responsive_tables {
+        @each $tN in t6 t7 t8 {
+            ##{$tN}>tbody>tr.#{$tN}-split {
+                @include usecolour_var_(border-bottom, ruledefault);
+
+                &:nth-of-type(odd) ~ tr:nth-of-type(odd) {
+                    @include usecolour_var_(background-color, tableshade);
+                }
+            }
+        }
+    }
+}