First commit.

sass/_slicknav.scss

@@ -0,0 +1,154 @@
+// sass-lint:disable all
+
+.slicknav_btn {
+  position: relative;
+  display: block;
+  vertical-align: middle;
+  float: right;
+  padding: .438em .625em;
+  line-height: 1.125em;
+  cursor: pointer;
+  margin: 5px;
+  text-decoration: none;
+  text-shadow: 0 1px 1px rgba(255, 255, 255, .75);
+  border-radius: 4px;
+  background-color: color(nearblack);
+}
+
+.slicknav_menu {
+  box-sizing: border-box;
+  background-color: color(header-bg);
+  padding: 2px;
+
+  &::before,
+  &::after {
+    content: ' ';
+    display: table;
+  }
+
+  &::after {
+    clear: both;
+  }
+}
+
+.slicknav_menutxt {
+  display: block;
+  line-height: 1.188em;
+  float: left;
+  color: color(text-bg);
+  font-weight: bold;
+  text-shadow: 0 1px 3px color(text);
+}
+
+.slicknav_icon {
+  float: left;
+  width: 1.125em;
+  height: .875em;
+  margin: .188em 0 0 .438em;
+
+  &::before { // Firefox Mobile v42 bugfix
+    background-color: transparent;
+    width: 1.125em;
+    height: .875em;
+    display: block;
+    content: '';
+    position: absolute;
+  }
+}
+
+.slicknav_no-text {
+  margin: 0;
+}
+
+.slicknav_icon-bar {
+  display: block;
+  width: 1.125em;
+  height: .125em;
+  border-radius: 1px;
+  box-shadow: 0 1px 0 rgba(0, 0, 0, .25);
+  background-color: color(text-bg);
+
+  & + .slicknav_icon-bar {
+    margin-top: .188em;
+  }
+}
+
+.slicknav_nav {
+  background-color: color(body-bg);
+  color: color(link);
+  margin: 0;
+  padding: 0;
+  list-style: none;
+  overflow: hidden;
+  clear: both;
+
+  ul {
+    display: block;
+    list-style: none;
+    overflow: hidden;
+    padding: 0;
+    margin: 0 0 0 20px;
+  }
+
+  li {
+    display: block;
+  }
+
+  a {
+    display: block;
+    padding: 5px 10px;
+    margin: 2px 5px;
+    text-decoration: none;
+    color: color(link);
+
+    &:hover {
+      border-radius: 6px;
+      background-color: color(nearblack);
+      color: color(text-bg);
+    }
+  }
+}
+
+.slicknav_row {
+  display: block;
+  padding: 5px 10px;
+  margin: 2px 5px;
+
+  &:hover {
+    border-radius: 6px;
+    background-color: color(nearblack);
+    color: color(text-bg);
+  }
+}
+
+.slicknav_arrow {
+  margin: 0 0 0 .4em;
+}
+
+.slicknav_txtnode {
+  margin-left: 15px;
+}
+
+.slicknav_item {
+  cursor: pointer;
+
+  a {
+    display: inline;
+    padding: 0;
+    margin: 0;
+  }
+}
+
+.slicknav_parent-link a {
+  display: inline;
+  padding: 0;
+  margin: 0;
+}
+
+.slicknav_brand {
+  float: left;
+  color: color(text-bg);
+  line-height: 30px;
+  padding: 7px 12px;
+  height: 44px;
+}