Add SCSS variables and do some minor optimizations

This commit adds and uses variables for the SCSS files. Additionally,
some minor optimizations have been done on the theme's HTML/CSS code.

10 files changed, 896 insertions, 819 deletions

diff --git a/theme/admin/html/database.php b/theme/admin/html/database.php
index da41e68..cdc9b31 100644
--- a/theme/admin/html/database.php
+++ b/theme/admin/html/database.php
@@ -21,7 +21,7 @@
 
 <?php if($FORM['RESULT']): ?>
 	<div class="form-border-box background padding">
-		<pre id="database-result"><?=escapeHTML($FORM['RESULT'])?></pre>
+		<pre><?=escapeHTML($FORM['RESULT'])?></pre>
 	</div>
 <?php endif; ?>
 
diff --git a/theme/admin/html/page/item.php b/theme/admin/html/page/item.php
index d0bf2d7..018286e 100644
--- a/theme/admin/html/page/item.php
+++ b/theme/admin/html/page/item.php
@@ -25,7 +25,7 @@
 	<?php if($PAGE['ARGV']): ?>
 		<ul class="arguments">
 			<?php foreach($PAGE['ARGV'] as $argument => $value): ?>
-				<li><strong><?=$argument?>:</strong> <span><?=escapeHTML($value)?></span></li>
+				<li><strong><?=$argument?>:</strong> <code><?=escapeHTML($value)?></code></li>
 			<?php endforeach; ?>
 		</ul>
 	<?php endif; ?>
diff --git a/theme/admin/html/post/item.php b/theme/admin/html/post/item.php
index 6fcbcad..5261bdb 100644
--- a/theme/admin/html/post/item.php
+++ b/theme/admin/html/post/item.php
@@ -31,7 +31,7 @@
 	<?php if($POST['ARGV']): ?>
 		<ul class="arguments">
 			<?php foreach($POST['ARGV'] as $argument => $value): ?>
-				<li><strong><?=$argument?>:</strong> <span><?=escapeHTML($value)?></span></li>
+				<li><strong><?=$argument?>:</strong> <code><?=escapeHTML($value)?></code></li>
 			<?php endforeach; ?>
 		</ul>
 	<?php endif; ?>
diff --git a/theme/admin/html/user/delete.php b/theme/admin/html/user/delete.php
index b500a12..16e11b5 100644
--- a/theme/admin/html/user/delete.php
+++ b/theme/admin/html/user/delete.php
@@ -2,7 +2,7 @@
 <h1><i class="fa fa-trash-o"></i><?=$Language->text('delete_user')?></h1>
 <p><?=$Language->text('delete_user_desc')?></p>
 
-<p class="red"><?=$Language->text('delete_user_warning')?></p>
+<p class="warning"><?=$Language->text('delete_user_warning')?></p>
 
 <?=$HTML?>
 </main>
diff --git a/theme/admin/html/user/item.php b/theme/admin/html/user/item.php
index e65b033..9a5a83e 100644
--- a/theme/admin/html/user/item.php
+++ b/theme/admin/html/user/item.php
@@ -29,7 +29,7 @@
 	<?php if($USER['ARGV']): ?>
 		<ul class="arguments">
 			<?php foreach($USER['ARGV'] as $argument => $value): ?>
-				<li><strong><?=$argument?>:</strong> <span><?=escapeHTML($value)?></span></li>
+				<li><strong><?=$argument?>:</strong> <code><?=escapeHTML($value)?></code></li>
 			<?php endforeach; ?>
 		</ul>
 	<?php endif; ?>
diff --git a/theme/admin/rsrc/css/import/_main.scss b/theme/admin/rsrc/css/import/_main.scss
new file mode 100644
index 0000000..5e4a6fe
--- /dev/null
+++ b/theme/admin/rsrc/css/import/_main.scss
@@ -0,0 +1,743 @@
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Import variables
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+@import "variables";
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Selection
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+::selection {
+	background: #BBB;
+	color: #000;
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Hyperlinks
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+a {
+	color: $linkColor;
+	text-decoration: none;
+
+	&:focus {
+		background: $linkColorFocused;
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Headings
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+h1, h2, h3 {
+	margin-bottom: 0;
+	text-transform: uppercase;
+
+	+p {
+		margin-top: 0;
+	}
+
+	.fa {
+		margin-right: 0.25rem;
+	}
+}
+
+h1 {
+	margin-top: 0;
+	font-size: $fontSizeH1;
+}
+
+h2 {
+	font-size: $fontSizeH2;
+}
+
+h3 {
+	font-size: $fontSizeH3;
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Document
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+html, body {
+	margin: 0;
+	padding: 0;
+}
+
+html {
+	font-size: 1.25rem;
+	color: $textColor;
+	background: $htmlBackgroundColor;
+	-webkit-hyphens: auto;
+	hyphens: auto;
+}
+
+body {
+	font-family: $fontFamily;
+	font-size: $fontSize;
+	line-height: $lineHeight;
+	display: flex;
+	min-height: 100vh;
+	flex-direction: column;
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Main content
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+#main-content {
+	flex: 1;
+	width: 100%;
+	background: $backgroundColor;
+	box-sizing: border-box;
+	padding: 0.75rem;
+	// border definition in _responsive.scss
+
+	&.wide {
+		max-width: $contentWidthWide;
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Width
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+#main-content, .header-content {
+	max-width: $contentWidth;
+	margin: 0 auto;
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Header
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+#main-header {
+	font-size: $fontSizeSmall;
+}
+
+#header {
+	&-text {
+		font-size: $fontSizeLarge;
+		text-transform: uppercase;
+	}
+
+	&-desc {
+		line-height: 1rem;
+	}
+	&-text, &-desc {
+		text-shadow: 0 -1px #4E718F, 1px 0 #4E718F, 0 1px #4E718F, -1px 0 #4E718F;
+		color: $headerBarTextColor;
+		font-weight: bold;
+	}
+
+	&-logo {
+		display: block;
+		max-height: 5rem;
+		float: left;
+		margin-right: 0.5rem;
+	}
+}
+
+.header-line {
+	padding: 0.25rem 0.75rem;
+	overflow: hidden;
+	background: $backgroundColorEmphasize;
+
+	+.header-line {
+		border: 0.05rem solid $borderColor;
+		border-left: none;
+		border-right: none;
+	}
+
+	&.background {
+		background: #5E819F;
+		position: sticky;
+		top: 0;
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Footer
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+#main-footer {
+	font-size: $fontSizeSmall;
+	background: $backgroundColorEmphasize;
+	border-top: 0.05rem solid $borderColor;
+	padding: 0.5rem 0.75rem;
+	text-align: center;
+
+	ul {
+		margin: 0;
+		padding: 0;
+		list-style: none;
+
+		li {
+			display: inline;
+
+			.fa {
+				margin-right: 0.125rem;
+			}
+		}
+
+		li:after {
+			content: " – ";
+			font-weight: bold;
+		}
+
+		li:last-child:after {
+			content: none;
+		}
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Main Navigation
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+#main-navi {
+	ul {
+		list-style: none;
+		margin: 0;
+		padding: 0;
+
+		li {
+			display: inline;
+
+			.fa {
+				margin-right: 0.25rem;
+			}
+		}
+
+		li:last-child {
+			float: right;
+		}
+
+		li:first-child {
+			float: none;
+		}
+	}
+
+	a {
+		padding: 0.1rem 0.3rem;
+		background: $navigationLinkBackgroundColor;
+		border: 0.05rem solid $borderColor;
+		color: inherit;
+		text-decoration: none;
+		text-align: center;
+		display: inline-block;
+
+		&:hover, &:focus {
+			text-decoration: none;
+			background: $navigationLinkFocusedBackgroundColor;
+		}
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Site Navigation
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+#site-navi {
+	clear: both;
+	display: flex;
+	box-sizing: border-box;
+	justify-content: space-between;
+	margin-top: 0.75rem;
+
+	> div {
+		display: flex;
+		align-items: center;
+		border: 0.05rem solid $borderColor;
+		background: $backgroundColorEmphasize;
+
+		> a {
+			display: block;
+		}
+	}
+
+	.disabled {
+		pointer-events: none;
+		color: $borderColor;
+	}
+
+	ol {
+		list-style: none;
+		margin: 0;
+		padding: 0;
+
+		li {
+			float: left;
+			display: inline-block;
+
+			+ li {
+				border-left: 0.05rem solid $borderColor;
+			}
+
+			&.active a {
+				background: $paginationActiveBackgroundColor;
+				font-weight: 600;
+				pointer-events: none;
+			}
+		}
+	}
+
+	a {
+		padding: 0 0.5rem;
+		text-decoration: none;
+		color: inherit;
+		display: inline-block;
+
+		&:hover, &:focus {
+			background: $navigationLinkFocusedBackgroundColor;
+		}
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Actions
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+.actions {
+	margin: 0 0 0.5rem 0;
+	padding: 0;
+	list-style: none;
+	font-size: $fontSizeSmall;
+	float: right;
+	text-align: center;
+
+	.fa {
+		margin-right: 0.1rem;
+	}
+
+	li {
+		display: inline-block;
+		font-weight: bold;
+		background: $backgroundColorEmphasize;
+		border: 0.05rem solid $borderColor;
+	}
+
+	a {
+	   color: inherit;
+	   display: block;
+	   padding: 0 0.25rem;
+   }
+}
+
+.actions-before {
+	float: left;
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Elements
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+pre {
+	margin-bottom: 1rem;
+	overflow: auto;
+	-moz-tab-size: 4;
+	tab-size: 4;
+	background: $backgroundColorEmphasize;
+	padding: 0.5rem;
+	border: 0.05rem solid $borderColor;
+}
+
+code, pre {
+	font-family: $fontFamilyMonospaced;
+}
+
+code {
+	color: $codeTextColor;
+}
+
+p {
+	margin-top: 0;
+}
+
+img {
+	border: none;
+	max-width: 100%;
+}
+
+.warning {
+	color: $warningTextColor;
+}
+
+.hidden {
+	display: none;
+}
+
+.no-visual-list {
+	margin: 0;
+	padding: 0;
+	list-style: none;
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Item Element
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+.item {
+	display: flex;
+	flex-direction: column;
+	border: 0.05rem solid $borderColor;
+	margin-bottom: 0.75rem;
+	clear: both;
+
+	header {
+		padding: 0.5rem 0.75rem;
+		border-bottom: 0.05rem solid $borderColor;
+		position: sticky;
+		top: 0;
+
+		h2 {
+			margin-top: 0;
+		}
+	}
+
+	footer {
+		border-top: 0.05rem solid $borderColor;
+
+		ul {
+			margin: 0;
+			padding: 0;
+			list-style: none;
+
+			li {
+				display: inline-block;
+				float: left;
+
+				&:last-child {
+					float: right;
+				}
+			}
+		}
+
+		a {
+			color: inherit;
+			display: inline-block;
+			padding: 0.25rem 2rem;
+
+			&:hover, &:active {
+				background: $itemLinkHoverBackgroundColor;
+			}
+		}
+	}
+
+	header, footer {
+		background: $backgroundColorEmphasize;
+		overflow: hidden;
+	}
+
+	blockquote {
+		margin: 0;
+		padding: 0.75rem;
+		overflow: hidden;
+		font-family: inherit;
+		flex-grow: 1;
+
+		p {
+			margin-bottom: 0;
+		}
+	}
+
+	&-id {
+		float: right;
+		color: $textColorLight;
+		font-size: 0.7rem;
+		font-weight: normal;
+	}
+
+	&-meta {
+		margin: 0;
+		padding: 0;
+		list-style: none;
+
+		&-right {
+			float: right;
+		}
+
+		li {
+			display: inline-block;
+
+			+li:before {
+				content: " – ";
+			}
+
+			&.item-meta-right:before {
+				content: none;
+			}
+		}
+	}
+
+	&-image {
+		float: left;
+		display: block;
+		margin-right: 0.75rem;
+		width: 10rem;
+		height: 7rem;
+		object-fit: cover;
+		background: $backgroundColorEmphasize;
+		border: 0.05rem solid $borderColor;
+	}
+
+	&-container.grid {
+		width: 100%;
+		display: grid;
+		grid-template-columns: auto auto auto;
+		grid-column-gap: 1rem;
+		grid-row-gap: 1rem;
+		column-gap: 1rem;
+		row-gap: 1rem;
+
+		.item {
+			margin-bottom: 0;
+		}
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Argument list
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+.arguments {
+	list-style: none;
+	margin: 0;
+	padding: 0.25rem 0.75rem;
+	background: $backgroundColorEmphasize;
+	font-size: $fontSizeSmall;
+	text-align: center;
+	border-top: 0.05rem solid $borderColor;
+
+	li {
+		display: inline;
+
+		> code {
+			font-family: inherit;
+			color: $textColorLight;
+		}
+
+		&:after {
+			content: " · ";
+			font-weight: bold;
+		}
+
+		&:last-child:after {
+			content: none;
+		}
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Grids
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+.form-grid {
+	display: grid;
+	grid-template-columns: 8rem auto 8rem auto;
+
+	border-left: 0.05rem solid $borderColor;
+	border-bottom: 0.05rem solid $borderColor;
+
+	&.two-columns {
+		grid-template-columns: auto auto;
+	}
+
+	&.no-bottom-border {
+		border-bottom: none;
+	}
+
+	> label {
+		display: flex;
+		align-items: center;
+		background: $formBackgroundColorEmphasize;
+
+		.fa {
+			margin-left: 0.5rem;
+			margin-right: 1rem;
+		}
+	}
+
+	&-item,
+	> label {
+		padding: 0.5rem;
+		border-top: 0.05rem solid $borderColor;
+		border-right: 0.05rem solid $borderColor;
+	}
+
+	&-item.first {
+		grid-column-start: 2;
+		grid-column-end: 5;
+	}
+}
+
+.form-border-box {
+	border: 0.05rem solid $borderColor;
+
+	&.padding {
+		padding: 0.5rem;
+	}
+
+	&.background {
+		background: $formBackgroundColorEmphasize;
+	}
+
+	&.nobordertop {
+		border-top: none;
+	}
+
+	+.form-border-box {
+		border-top: none;
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Form buttons
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+#emoticon-list-wrapper {
+	display: flex;
+	width: 100%;
+	justify-content: center;
+	box-sizing: border-box;
+}
+
+#button-list-wrapper {
+	border-bottom: 0.05rem solid $borderColor;
+	background: $backgroundColorEmphasize;
+	overflow: hidden;
+}
+
+.button-list {
+	margin: 0;
+	padding: 0;
+	list-style: none;
+}
+
+.button-list.emoticons > li {
+	font-size: 1.25rem;
+	display: inline-block;
+	padding: 0.2rem;
+	border-bottom: 0.2rem solid transparent;
+	border-radius: 0.1rem;
+	cursor: pointer;
+
+	&:hover, &:active {
+		border-bottom: 0.2rem solid $borderColor;
+	}
+}
+
+.button-list.markdown > li {
+	float: left;
+	padding: 0.25rem;
+	cursor: pointer;
+	width: 1.75rem;
+	box-sizing: border-box;
+	text-align: center;
+
+	&:hover, &:active {
+		color: $textColorStrong;
+	}
+}
+
+#content-editor {
+	border: none;
+	margin: 0;
+
+	&-wrapper {
+		border-top: none;
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Form elements
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+input, select, textarea {
+	width: 100%;
+	background: $backgroundColorEmphasize;
+	color: $formElementTextColor;
+	font-family: inherit;
+	font-size: 0.7rem;
+	padding: 0.25rem;
+	border: 0.05rem solid $borderColor;
+	box-sizing: border-box;
+
+	&:focus {
+		outline: none;
+	}
+}
+
+textarea {
+	font-family: $fontFamilyTextarea;
+	box-sizing: border-box;
+	display: block;
+	resize: vertical;
+	min-height: 15rem;
+	line-height: 1.2rem;
+	padding: 0.5rem;
+	-webkit-hyphens: none;
+	hyphens: none;
+}
+
+input {
+	&[type="submit"] {
+		text-transform: uppercase;
+		border-radius: 0.1rem;
+	}
+}
+
+label {
+	text-transform: uppercase;
+	font-weight: normal;
+
+	&:after {
+		content: ":";
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Form buttons
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+#insert-button, #update-button, #delete-button {
+	color: $formButtonTextColor;
+	border: 0.05rem solid $formButtonBorderColor;
+}
+
+#insert-button {
+	background: $insertButtonBackgroundColor;
+
+	&:active, &:focus {
+		background: darken($insertButtonBackgroundColor, 10%)
+	}
+}
+
+#update-button {
+	background: $updateButtonBackgroundColor;
+
+	&:active, &:focus {
+		background: darken($updateButtonBackgroundColor, 10%)
+	}
+}
+
+#delete-button {
+	background: $deleteButtonBackgroundColor;
+
+	&:active, &:focus {
+		background: darken($deleteButtonBackgroundColor, 10%)
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Form message list
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+#message-list {
+	margin: 0;
+	padding: 0.5rem;
+	list-style: none;
+	background: $messageListBackgroundColor;
+	color: $messageListTextColor;
+	font-size: $fontSizeSmall;
+
+	&-wrapper {
+		margin-bottom: 0.5rem;
+		border: 0.1rem solid darken($messageListBackgroundColor, 10%);
+	}
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Search form
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+#search-form {
+	margin-bottom: 1rem;
+}
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Import other files
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+@import "responsive";
+@import "fontello";
+@import "fonts";
diff --git a/theme/admin/rsrc/css/import/_responsive.scss b/theme/admin/rsrc/css/import/_responsive.scss
index 2a7cebb..f6e0b5a 100644
--- a/theme/admin/rsrc/css/import/_responsive.scss
+++ b/theme/admin/rsrc/css/import/_responsive.scss
@@ -6,7 +6,7 @@
 
 @media only screen and (min-width: 62.5em /*1000px*/) {
 	#main-content {
-		border: 0.05rem solid #AAA;
+		border: 0.05rem solid $borderColor;
 		border-top: none;
 		border-bottom: none;
 	}
@@ -32,13 +32,15 @@
 	#main-navi {
 		font-size: 1rem;
 
-		li {
-			span {
-				display: none;
-			}
+		ul {
+			li {
+				span {
+					display: none;
+				}
 
-			.fa {
-				margin-right: 0;
+				.fa {
+					margin-right: 0;
+				}
 			}
 		}
 
@@ -76,6 +78,10 @@
 		overflow: hidden;
 		box-sizing: border-box;
 
+		&-before {
+			float: none;
+		}
+
 		li {
 			flex-grow: 1;
 
@@ -84,13 +90,4 @@
 			}
 		}
 	}
-
-	.actions-before {
-		float: none;
-	}
-
-	.arguments {
-		font-size: 0.5rem;
-		line-height: 0.75rem;
-	}
 }
diff --git a/theme/admin/rsrc/css/import/_variables.scss b/theme/admin/rsrc/css/import/_variables.scss
new file mode 100644
index 0000000..70a8424
--- /dev/null
+++ b/theme/admin/rsrc/css/import/_variables.scss
@@ -0,0 +1,31 @@
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Line height
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+$lineHeight: 1.2rem;
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Font families
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+$fontFamily: "Ruda", "sans-serif";
+$fontFamilyTextarea: "Kadwa", "sans-serif";
+$fontFamilyMonospaced: "monospace";
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Text font sizes
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+$fontSize: 0.7rem;
+$fontSizeSmall: $fontSize - 0.1rem;
+$fontSizeLarge: $fontSize + 0.1rem;
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Heading font sizes
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+$fontSizeH1: 0.80rem;
+$fontSizeH2: 0.70rem;
+$fontSizeH3: 0.65rem;
+
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Content widths
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+$contentWidth: 50rem;
+$contentWidthWide: 90rem;
diff --git a/theme/admin/rsrc/css/main.css b/theme/admin/rsrc/css/main.css
index 2abfeac..866a7a0 100644
--- a/theme/admin/rsrc/css/main.css
+++ b/theme/admin/rsrc/css/main.css
@@ -1,8 +1,50 @@
 @charset "UTF-8";
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Content background and border color
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Header and navigation
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Text colors
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Misc
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Forms
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Form buttons
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Information message box
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Import stylesheet
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Import variables
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Line height
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Font families
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Text font sizes
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Heading font sizes
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Content widths
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 # Selection
 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-::-moz-selection {
+::selection {
   background: #BBB;
   color: #000;
 }
@@ -99,22 +141,18 @@ body {
   font-size: 0.6rem;
 }
 
-#header-text, #header-desc {
-  text-shadow: 0 -1px #4E718F, 1px 0 #4E718F, 0 1px #4E718F, -1px 0 #4E718F;
-}
-
 #header-text {
   font-size: 0.8rem;
-  font-weight: 700;
   text-transform: uppercase;
 }
-
 #header-desc {
-  font-size: 0.6rem;
-  font-weight: 700;
   line-height: 1rem;
 }
-
+#header-text, #header-desc {
+  text-shadow: 0 -1px #4E718F, 1px 0 #4E718F, 0 1px #4E718F, -1px 0 #4E718F;
+  color: #333;
+  font-weight: bold;
+}
 #header-logo {
   display: block;
   max-height: 5rem;
@@ -123,10 +161,9 @@ body {
 }
 
 .header-line {
-  padding: 0.5rem 0.75rem;
+  padding: 0.25rem 0.75rem;
   overflow: hidden;
   background: #EEE;
-  padding: 0.25rem 0.75rem;
 }
 .header-line + .header-line {
   border: 0.05rem solid #AAA;
@@ -161,7 +198,7 @@ body {
   margin-right: 0.125rem;
 }
 #main-footer ul li:after {
-  content: " · ";
+  content: " – ";
   font-weight: bold;
 }
 #main-footer ul li:last-child:after {
@@ -225,11 +262,6 @@ body {
   pointer-events: none;
   color: #AAA;
 }
-#site-navi .active a {
-  background: #CCC !important;
-  font-weight: 600;
-  pointer-events: none;
-}
 #site-navi ol {
   list-style: none;
   margin: 0;
@@ -242,6 +274,11 @@ body {
 #site-navi ol li + li {
   border-left: 0.05rem solid #AAA;
 }
+#site-navi ol li.active a {
+  background: #CCC;
+  font-weight: 600;
+  pointer-events: none;
+}
 #site-navi a {
   padding: 0 0.5rem;
   text-decoration: none;
@@ -293,7 +330,6 @@ pre {
   background: #EEE;
   padding: 0.5rem;
   border: 0.05rem solid #AAA;
-  font-style: italic;
 }
 
 code, pre {
@@ -313,22 +349,10 @@ img {
   max-width: 100%;
 }
 
-.red {
+.warning {
   color: #B03060;
 }
 
-.blue {
-  color: #40779A;
-}
-
-.green {
-  color: #008B45;
-}
-
-.right {
-  float: right;
-}
-
 .hidden {
   display: none;
 }
@@ -339,10 +363,6 @@ img {
   list-style: none;
 }
 
-#database-result {
-  color: inherit;
-}
-
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 # Item Element
 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
@@ -413,15 +433,15 @@ img {
 .item-meta-right {
   float: right;
 }
-.item-meta-right:before {
-  content: none !important;
-}
 .item-meta li {
   display: inline-block;
 }
 .item-meta li + li:before {
   content: " – ";
 }
+.item-meta li.item-meta-right:before {
+  content: none;
+}
 .item-image {
   float: left;
   display: block;
@@ -460,8 +480,9 @@ img {
 .arguments li {
   display: inline;
 }
-.arguments li > span {
-  color: #40779A;
+.arguments li > code {
+  font-family: inherit;
+  color: #666;
 }
 .arguments li:after {
   content: " · ";
@@ -565,7 +586,7 @@ img {
   text-align: center;
 }
 .button-list.markdown > li:hover, .button-list.markdown > li:active {
-  color: #40779A;
+  color: #000;
 }
 
 #content-editor {
@@ -609,13 +630,6 @@ input[type=submit] {
   text-transform: uppercase;
   border-radius: 0.1rem;
 }
-input:disabled {
-  background: #DDD;
-  color: #888;
-}
-input:disabled:hover {
-  cursor: not-allowed;
-}
 
 label {
   text-transform: uppercase;
@@ -677,6 +691,9 @@ label:after {
   margin-bottom: 1rem;
 }
 
+/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+# Import other files
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
 @media only screen and (max-width: 90em) {
   .item-container.grid {
     grid-template-columns: auto auto;
@@ -708,10 +725,10 @@ label:after {
   #main-navi {
     font-size: 1rem;
   }
-  #main-navi li span {
+  #main-navi ul li span {
     display: none;
   }
-  #main-navi li .fa {
+  #main-navi ul li .fa {
     margin-right: 0;
   }
   #main-navi a {
@@ -746,21 +763,15 @@ label:after {
     overflow: hidden;
     box-sizing: border-box;
   }
+  .actions-before {
+    float: none;
+  }
   .actions li {
     flex-grow: 1;
   }
   .actions li + li {
     border-left: none;
   }
-
-  .actions-before {
-    float: none;
-  }
-
-  .arguments {
-    font-size: 0.5rem;
-    line-height: 0.75rem;
-  }
 }
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 # Fontello
diff --git a/theme/admin/rsrc/css/main.scss b/theme/admin/rsrc/css/main.scss
index 680de79..40334c7 100644
--- a/theme/admin/rsrc/css/main.scss
+++ b/theme/admin/rsrc/css/main.scss
@@ -1,762 +1,57 @@
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Selection
+# Content background and border color
 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-::-moz-selection {
-	background: #BBB;
-	color: #000;
-}
+$htmlBackgroundColor: #DDD;
+$backgroundColor: #FFF;
+$backgroundColorEmphasize: #EEE;
+$borderColor: #AAA;
 
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Hyperlinks
+# Header and navigation
 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-a {
-	color: #0060A0;
-	text-decoration: none;
-
-	&:focus {
-		background: #CCC;
-	}
-}
-
-/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Headings
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-h1, h2, h3 {
-	margin-bottom: 0;
-	text-transform: uppercase;
-
-	+p {
-		margin-top: 0;
-	}
-
-	.fa {
-		margin-right: 0.25rem;
-	}
-}
-
-h1 {
-	margin-top: 0;
-	font-size: 0.80rem;
-}
-
-h2 {
-	font-size: 0.70rem;
-}
-
-h3 {
-	font-size: 0.65rem;
-}
-
-/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Document
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-html, body {
-	margin: 0;
-	padding: 0;
-}
-
-html {
-	font-size: 1.25rem;
-	color: #333;
-	background: #DDD;
-	-webkit-hyphens: auto;
-	hyphens: auto;
-}
-
-body {
-	font-family: "Ruda", "sans-serif";
-	font-size: 0.7rem;
-	line-height: 1.2rem;
-	display: flex;
-	min-height: 100vh;
-	flex-direction: column;
-}
-
-/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Main content
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-#main-content {
-	flex: 1;
-	width: 100%;
-	background: #FFF;
-	box-sizing: border-box;
-	padding: 0.75rem;
-	// border definition in _responsive.scss
-
-	&.wide {
-		max-width: 90rem;
-	}
-}
-
-/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Width
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-#main-content, .header-content {
-	max-width: 50rem;
-	margin: 0 auto;
-}
-
-/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Header
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-#main-header {
-	font-size: 0.6rem;
-}
-
-#header-text, #header-desc {
-	text-shadow: 0 -1px #4E718F, 1px 0 #4E718F, 0 1px #4E718F, -1px 0 #4E718F;
-}
-
-#header-text {
-	font-size: 0.8rem;
-	font-weight: 700;
-	text-transform: uppercase;
-}
-
-#header-desc {
-	font-size: 0.6rem;
-	font-weight: 700;
-	line-height: 1rem;
-}
-
-#header-logo {
-	display: block;
-	max-height: 5rem;
-	float: left;
-	margin-right: 0.5rem;
-}
-
-.header-line {
-	padding: 0.5rem 0.75rem;
-	overflow: hidden;
-	background: #EEE;
-
-	padding: 0.25rem 0.75rem;
-
-	+.header-line {
-		border: 0.05rem solid #AAA;
-		border-left: none;
-		border-right: none;
-	}
-
-	&.background {
-		background: #5E819F;
-		position: sticky;
-		top: 0;
-	}
-}
-
-/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Footer
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-#main-footer {
-	font-size: 0.6rem;
-	background: #EEE;
-	border-top: 0.05rem solid #AAA;
-	padding: 0.5rem 0.75rem;
-	text-align: center;
-
-	ul {
-		margin: 0;
-		padding: 0;
-		list-style: none;
-
-		li {
-			display: inline;
-
-			.fa {
-				margin-right: 0.125rem;
-			}
-		}
-
-		li:after {
-			content: " · ";
-			font-weight: bold;
-		}
-
-		li:last-child:after {
-			content: none;
-		}
-	}
-}
-
-/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Main Navigation
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-#main-navi {
-	ul {
-		list-style: none;
-		margin: 0;
-		padding: 0;
-
-		li {
-			display: inline;
-
-			.fa {
-				margin-right: 0.25rem;
-			}
-		}
-
-		li:last-child {
-			float: right;
-		}
-
-		li:first-child {
-			float: none;
-		}
-	}
-
-	a {
-		padding: 0.1rem 0.3rem;
-		background: #DDD;
-		border: 0.05rem solid #AAA;
-		color: inherit;
-		text-decoration: none;
-		text-align: center;
-		display: inline-block;
-
-		&:hover, &:focus {
-			text-decoration: none;
-			background: #CCC;
-		}
-	}
-}
-
-/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Site Navigation
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-#site-navi {
-	clear: both;
-	display: flex;
-	box-sizing: border-box;
-	justify-content: space-between;
-	margin-top: 0.75rem;
-
-	> div {
-		display: flex;
-		align-items: center;
-		border: 0.05rem solid #AAA;
-		background: #EEE;
-
-		> a {
-			display: block;
-		}
-	}
-
-	.disabled {
-		pointer-events: none;
-		color: #AAA;
-	}
-
-	.active a {
-		background: #CCC !important;
-		font-weight: 600;
-		pointer-events: none;
-	}
-
-	ol {
-		list-style: none;
-		margin: 0;
-		padding: 0;
-
-		li {
-			float: left;
-			display: inline-block;
-
-			+ li {
-				border-left: 0.05rem solid #AAA;
-			}
-		}
-	}
-
-	a {
-		padding: 0 0.5rem;
-		text-decoration: none;
-		color: inherit;
-		display: inline-block;
-
-		&:hover, &:focus {
-			background: #CCC;
-		}
-	}
-}
-
-/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Actions
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-.actions {
-	margin: 0 0 0.5rem 0;
-	padding: 0;
-	list-style: none;
-	font-size: 0.6rem;
-	float: right;
-	text-align: center;
-
-	.fa {
-		margin-right: 0.1rem;
-	}
-
-	li {
-		display: inline-block;
-		font-weight: bold;
-		background: #EEE;
-		border: 0.05rem solid #AAA;
-	}
-
-	a {
-	   color: inherit;
-	   display: block;
-	   padding: 0 0.25rem;
-   }
-}
-
-.actions-before {
-	float: left;
-}
-
-/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Elements
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-pre {
-	margin-bottom: 1rem;
-	overflow: auto;
-	-moz-tab-size: 4;
-	tab-size: 4;
-	background: #EEE;
-	padding: 0.5rem;
-	border: 0.05rem solid #AAA;
-	font-style: italic;
-}
-
-code, pre {
-	font-family: "monospace";
-}
-
-code {
-	color: #008B45;
-}
-
-p {
-	margin-top: 0;
-}
-
-img {
-	border: none;
-	max-width: 100%;
-}
-
-.red {
-	color: #B03060;
-}
-
-.blue {
-	color: #40779A;
-}
-
-.green {
-	color: #008B45;
-}
-
-.right {
-	float: right;
-}
-
-.hidden {
-	display: none;
-}
-
-.no-visual-list {
-	margin: 0;
-	padding: 0;
-	list-style: none;
-}
-
-#database-result {
-	color: inherit;
-}
-
-/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Item Element
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-.item {
-	display: flex;
-	flex-direction: column;
-	border: 0.05rem solid #AAA;
-	margin-bottom: 0.75rem;
-	clear: both;
-
-	header {
-		padding: 0.5rem 0.75rem;
-		border-bottom: 0.05rem solid #AAA;
-		position: sticky;
-		top: 0;
-
-		h2 {
-			margin-top: 0;
-		}
-	}
-
-	footer {
-		border-top: 0.05rem solid #AAA;
-
-		ul {
-			margin: 0;
-			padding: 0;
-			list-style: none;
-
-			li {
-				display: inline-block;
-				float: left;
-
-				&:last-child {
-					float: right;
-				}
-			}
-		}
-
-		a {
-			color: inherit;
-			display: inline-block;
-			padding: 0.25rem 2rem;
-
-			&:hover, &:active {
-				background: #DDD;
-			}
-		}
-	}
-
-	header, footer {
-		background: #EEE;
-		overflow: hidden;
-	}
-
-	blockquote {
-		margin: 0;
-		padding: 0.75rem;
-		overflow: hidden;
-		font-family: inherit;
-		flex-grow: 1;
-
-		p {
-			margin-bottom: 0;
-		}
-	}
-
-	&-id {
-		float: right;
-		color: #666;
-		font-size: 0.7rem;
-		font-weight: normal;
-	}
-
-	&-meta {
-		margin: 0;
-		padding: 0;
-		list-style: none;
-
-		&-right {
-			float: right;
-
-			&:before {
-				content: none !important;
-			}
-		}
-
-		li {
-			display: inline-block;
-
-			+li:before {
-				content: " – ";
-			}
-		}
-	}
-
-	&-image {
-		float: left;
-		display: block;
-		margin-right: 0.75rem;
-		width: 10rem;
-		height: 7rem;
-		object-fit: cover;
-		background: #EEE;
-		border: 0.05rem solid #AAA;
-	}
-
-	&-container.grid {
-		width: 100%;
-		display: grid;
-		grid-template-columns: auto auto auto;
-		grid-column-gap: 1rem;
-		grid-row-gap: 1rem;
-		column-gap: 1rem;
-		row-gap: 1rem;
-
-		.item {
-			margin-bottom: 0;
-		}
-	}
-}
-
-/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Argument list
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-.arguments {
-	list-style: none;
-	margin: 0;
-	padding: 0.25rem 0.75rem;
-	background: #EEE;
-	font-size: 0.6rem;
-	text-align: center;
-	border-top: 0.05rem solid #AAA;
-
-	li {
-		display: inline;
-
-		> span {
-			color: #40779A;
-		}
-
-		&:after {
-			content: " · ";
-			font-weight: bold;
-		}
-
-		&:last-child:after {
-			content: none;
-		}
-	}
-}
+$headerBarTextColor: #333;
+$navigationLinkBackgroundColor: #DDD;
+$navigationLinkFocusedBackgroundColor: #CCC;
 
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Grids
+# Text colors
 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-.form-grid {
-	display: grid;
-	grid-template-columns: 8rem auto 8rem auto;
-
-	border-left: 0.05rem solid #AAA;
-	border-bottom: 0.05rem solid #AAA;
-
-	&.two-columns {
-		grid-template-columns: auto auto;
-	}
-
-	&.no-bottom-border {
-		border-bottom: none;
-	}
-
-	> label {
-		display: flex;
-		align-items: center;
-		background: #DDD;
-
-		.fa {
-			margin-left: 0.5rem;
-			margin-right: 1rem;
-		}
-	}
-
-	&-item,
-	> label {
-		padding: 0.5rem;
-		border-top: 0.05rem solid #AAA;
-		border-right: 0.05rem solid #AAA;
-	}
-
-	&-item.first {
-		grid-column-start: 2;
-		grid-column-end: 5;
-	}
-}
-
-.form-border-box {
-	border: 0.05rem solid #AAA;
-
-	&.padding {
-		padding: 0.5rem;
-	}
-
-	&.background {
-		background: #DDD;
-	}
-
-	&.nobordertop {
-		border-top: none;
-	}
-
-	+.form-border-box {
-		border-top: none;
-	}
-}
+$textColor: #333;
+$textColorLight: #666;
+$textColorStrong: #000;
+$formElementTextColor: #404040;
+$codeTextColor: #008B45;
+$linkColor: #0060A0;
+$linkColorFocused: #CCC;
+$warningTextColor: #B03060;
 
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Form buttons
+# Misc
 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-#emoticon-list-wrapper {
-	display: flex;
-	width: 100%;
-	justify-content: center;
-	box-sizing: border-box;
-}
-
-#button-list-wrapper {
-	border-bottom: 0.05rem solid #AAA;
-	background: #EEE;
-	overflow: hidden;
-}
-
-.button-list {
-	margin: 0;
-	padding: 0;
-	list-style: none;
-}
-
-.button-list.emoticons > li {
-	font-size: 1.25rem;
-	display: inline-block;
-	padding: 0.2rem;
-	border-bottom: 0.2rem solid transparent;
-	border-radius: 0.1rem;
-	cursor: pointer;
-
-	&:hover, &:active {
-		border-bottom: 0.2rem solid #AAA;
-	}
-}
-
-.button-list.markdown > li {
-	float: left;
-	padding: 0.25rem;
-	cursor: pointer;
-	width: 1.75rem;
-	box-sizing: border-box;
-	text-align: center;
-
-	&:hover, &:active {
-		color: #40779A;
-	}
-}
-
-#content-editor {
-	border: none;
-	margin: 0;
-
-	&-wrapper {
-		border-top: none;
-	}
-}
+$itemLinkHoverBackgroundColor: #DDD;
+$paginationActiveBackgroundColor: #CCC;
 
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Form elements
+# Forms
 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-input, select, textarea {
-	width: 100%;
-	background: #EEE;
-	color: #404040;
-	font-family: inherit;
-	font-size: 0.7rem;
-	padding: 0.25rem;
-	border: 0.05rem solid #AAA;
-	box-sizing: border-box;
-
-	&:focus {
-		outline: none;
-	}
-}
-
-textarea {
-	font-family: "Kadwa", "sans-serif";
-	box-sizing: border-box;
-	display: block;
-	resize: vertical;
-	min-height: 15rem;
-	line-height: 1.2rem;
-	padding: 0.5rem;
-	-webkit-hyphens: none;
-	hyphens: none;
-}
-
-input {
-	&[type="submit"] {
-		text-transform: uppercase;
-		border-radius: 0.1rem;
-	}
-
-	&:disabled {
-		background: #DDD;
-		color: #888;
-
-		&:hover {
-			cursor: not-allowed;
-		}
-	}
-}
-
-label {
-	text-transform: uppercase;
-	font-weight: normal;
-
-	&:after {
-		content: ":";
-	}
-}
+$formBackgroundColorEmphasize: #DDD;
+$formButtonBorderColor: #404040;
+$formButtonTextColor: #EEE;
 
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 # Form buttons
 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-#insert-button, #update-button, #delete-button {
-	color: #EEE;
-	border: 0.05rem solid #404040;
-}
-
-#insert-button {
-	background: #4D8D5D;
-
-	&:active, &:focus {
-		background: darken(#4D8D5D, 10%)
-	}
-}
-
-#update-button {
-	background: #6A8AA5;
-
-	&:active, &:focus {
-		background: darken(#6A8AA5, 10%)
-	}
-}
-
-#delete-button {
-	background: #C45C66;
-
-	&:active, &:focus {
-		background: darken(#C45C66, 10%)
-	}
-}
+$insertButtonBackgroundColor: #4D8D5D;
+$updateButtonBackgroundColor: #6A8AA5;
+$deleteButtonBackgroundColor: #C45C66;
 
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Form message list
+# Information message box
 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-#message-list {
-	margin: 0;
-	padding: 0.5rem;
-	list-style: none;
-	background: #C45C66;
-	color: #EEE;
-	font-size: 0.6rem;
-
-	&-wrapper {
-		margin-bottom: 0.5rem;
-		border: 0.1rem solid darken(#C45C66, 10%);
-	}
-}
+$messageListTextColor: #EEE;
+$messageListBackgroundColor: #C45C66;
 
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-# Search form
+# Import stylesheet
 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
-#search-form {
-	margin-bottom: 1rem;
-}
-
-@import "import/responsive";
-@import "import/fontello";
-@import "import/fonts";
+@import "import/main";