Included Sass files which should have been in my previous commit. Oops!

How embarrassing. Also I've updated the gitignore.

.gitignore

@@ -6,4 +6,5 @@ _code_cache
 _deploy
 public
 source/_stash
+source/stylesheets/screen.css
 vendor

themes/classic/_plugins/category_generator.rb

@@ -0,0 +1,161 @@
+# Jekyll category page generator.
+# http://recursive-design.com/projects/jekyll-plugins/
+#
+# Version: 0.1.4 (201101061053)
+#
+# Copyright (c) 2010 Dave Perrett, http://recursive-design.com/
+# Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php)
+#
+# A generator that creates category pages for jekyll sites.
+#
+# To use it, simply drop this script into the _plugins directory of your Jekyll site. You should
+# also create a file called 'category_index.html' in the _layouts directory of your jekyll site
+# with the following contents (note: you should remove the leading '# ' characters):
+#
+# ================================== COPY BELOW THIS LINE ==================================
+# ---
+# layout: default
+# ---
+#
+# <h1 class="category">{{ page.title }}</h1>
+# <ul class="posts">
+# {% for post in site.categories[page.category] %}
+#     <div>{{ post.date | date_to_html_string }}</div>
+#     <h2><a href="{{ post.url }}">{{ post.title }}</a></h2>
+#     <div class="categories">Filed under {{ post.categories | category_links }}</div>
+# {% endfor %}
+# </ul>
+# ================================== COPY ABOVE THIS LINE ==================================
+#
+# You can alter the _layout_ setting if you wish to use an alternate layout, and obviously you
+# can change the HTML above as you see fit.
+#
+# When you compile your jekyll site, this plugin will loop through the list of categories in your
+# site, and use the layout above to generate a page for each one with a list of links to the
+# individual posts.
+#
+# Included filters :
+# - category_links:      Outputs the list of categories as comma-separated <a> links.
+# - date_to_html_string: Outputs the post.date as formatted html, with hooks for CSS styling.
+#
+# Available _config.yml settings :
+# - category_dir:          The subfolder to build category pages in (default is 'categories').
+# - category_title_prefix: The string used before the category name in the page title (default is
+#                          'Category: ').
+module Jekyll
+
+
+  # The CategoryIndex class creates a single category page for the specified category.
+  class CategoryIndex < Page
+
+    # Initializes a new CategoryIndex.
+    #
+    #  +base+         is the String path to the <source>.
+    #  +category_dir+ is the String path between <source> and the category folder.
+    #  +category+     is the category currently being processed.
+    def initialize(site, base, category_dir, category)
+      @site = site
+      @base = base
+      @dir  = category_dir
+      @name = 'index.html'
+      self.process(@name)
+      # Read the YAML data from the layout page.
+      self.read_yaml(File.join(base, '_layouts'), 'category_index.html')
+      self.data['category']    = category
+      # Set the title for this page.
+      title_prefix             = site.config['category_title_prefix'] || 'Category: '
+      self.data['title']       = "#{title_prefix}#{category}"
+      # Set the meta-description for this page.
+      meta_description_prefix  = site.config['category_meta_description_prefix'] || 'Category: '
+      self.data['description'] = "#{meta_description_prefix}#{category}"
+    end
+
+  end
+
+
+  # The Site class is a built-in Jekyll class with access to global site config information.
+  class Site
+
+    # Creates an instance of CategoryIndex for each category page, renders it, and
+    # writes the output to a file.
+    #
+    #  +category_dir+ is the String path to the category folder.
+    #  +category+     is the category currently being processed.
+    def write_category_index(category_dir, category)
+      index = CategoryIndex.new(self, self.source, category_dir, category)
+      index.render(self.layouts, site_payload)
+      index.write(self.dest)
+      # Record the fact that this page has been added, otherwise Site::cleanup will remove it.
+      self.pages << index
+    end
+
+    # Loops through the list of category pages and processes each one.
+    def write_category_indexes
+      if self.layouts.key? 'category_index'
+        dir = self.config['category_dir'] || 'categories'
+        self.categories.keys.each do |category|
+          self.write_category_index(File.join(dir, category.gsub(/_|\W/, '-')), category)
+        end
+
+      # Throw an exception if the layout couldn't be found.
+      else
+        throw "No 'category_index' layout found."
+      end
+    end
+
+  end
+
+
+  # Jekyll hook - the generate method is called by jekyll, and generates all of the category pages.
+  class GenerateCategories < Generator
+    safe true
+    priority :low
+
+    def generate(site)
+      site.write_category_indexes
+    end
+
+  end
+
+
+  # Adds some extra filters used during the category creation process.
+  module Filters
+
+    # Outputs a list of categories as comma-separated <a> links. This is used
+    # to output the category list for each post on a category page.
+    #
+    #  +categories+ is the list of categories to format.
+    #
+    # Returns string
+    #
+    def category_links(categories)
+      categories = categories.sort!.map do |item|
+        "<a class='category' href='/#{@context.registers[:site].config['category_dir']}/#{item.gsub(/_|\W/, '-')}'/>#{item}</a>"
+      end
+
+      case categories.length
+      when 0
+        ""
+      when 1
+        categories[0].to_s
+      else
+        "#{categories[0...-1].join(', ')}, #{categories[-1]}"
+      end
+    end
+
+    # Outputs the post.date as formatted html, with hooks for CSS styling.
+    #
+    #  +date+ is the date object to format as HTML.
+    #
+    # Returns string
+    def date_to_html_string(date)
+      result = '<span class="month">' + date.strftime('%b').upcase + '</span> '
+      result += date.strftime('<span class="day">%d</span> ')
+      result += date.strftime('<span class="year">%Y</span> ')
+      result
+    end
+
+  end
+
+end
+

themes/classic/sass/_base.scss

@@ -0,0 +1,5 @@
+@import "base/utilities";
+@import "base/solarized";
+@import "base/theme";
+@import "base/layout";
+@import "base/typography";

themes/classic/sass/_partials.scss

@@ -0,0 +1,7 @@
+@import "partials/header";
+@import "partials/navigation";
+@import "partials/blog";
+@import "partials/syntax";
+@import "partials/archive";
+@import "partials/sidebar";
+@import "partials/footer";

themes/classic/sass/base/_layout.scss

@@ -0,0 +1,134 @@
+$max-width: 1200px !default;
+
+// Padding used for layout margins
+$pad-min: 18px !default;
+$pad-narrow: 25px !default;
+$pad-medium: 35px !default;
+$pad-wide: 55px !default;
+
+// Sidebar widths used in media queries
+$sidebar-width-medium: 240px !default;
+$sidebar-pad-medium: 15px !default;
+$sidebar-pad-wide: 20px !default;
+$sidebar-width-wide: 300px !default;
+
+.group { @include pie-clearfix; }
+
+body {
+  -webkit-text-size-adjust: none;
+  max-width: $max-width;
+  position: relative;
+  margin: 0 auto;
+  > header, > nav, > footer, #articles > article, #articles > nav {
+    @extend .group;
+    padding-left: $pad-min;
+    padding-right: $pad-min;
+    @media only screen and (min-width: 480px) {
+      padding-left: $pad-narrow;
+      padding-right: $pad-narrow;
+    }
+    @media only screen and (min-width: 768px) {
+      padding-left: $pad-medium;
+      padding-right: $pad-medium;
+    }
+    @media only screen and (min-width: 992px) {
+      padding-left: $pad-wide;
+      padding-right: $pad-wide;
+    }
+  }
+  > header {
+    font-size: 1em;
+    padding-top: 1.5em;
+    padding-bottom: 1.5em;
+  }
+}
+
+.toggle-sidebar { display: none; }
+#articles { width: 100%;
+  + aside {
+    float: none;
+    padding: 0 $pad-min 1px;
+    background-color: $sidebar-bg;
+    border-top: 1px solid $sidebar-border;
+  }
+}
+
+@media only screen and (min-width: 550px) {
+  body > header { font-size: 1em; }
+}
+@media only screen and (min-width: 768px) {
+  body { -webkit-text-size-adjust: auto; }
+  body > header { font-size: 1.2em; }
+  body > nav {
+    + div {
+      @extend .group;
+      padding: 0;
+      margin: 0 auto;
+      > div {
+        @extend .group;
+        margin-right: $sidebar-width-medium;
+      }
+    }
+  }
+  #articles {
+    padding-top: $pad-medium/2;
+    padding-bottom: $pad-medium/2;
+    float: left;
+    + aside {
+      width: $sidebar-width-medium - $sidebar-pad-medium*2;
+      padding: 0 $sidebar-pad-medium $sidebar-pad-medium;
+      background: none;
+      float: left;
+      margin: 0 -100% 0 0;
+    }
+  }
+  body > div > div { position: relative; }
+
+  .collapse-sidebar {
+    > div > div { margin-right: 10px; }
+    #articles + aside {
+      display: none;
+    }
+    .toggle-sidebar {
+      right: -1px;
+      background-color: $sidebar-bg;
+      border-right-width: 0;
+      text-indent: 2px;
+      border-left: 1px solid $sidebar-border;
+      @include border-bottom-right-radius(0);
+      @include border-bottom-left-radius(.3em);
+      @include link-colors(#aaa, #888);
+    }
+  }
+
+  .toggle-sidebar {
+    outline: none;
+    position: absolute; right: -21px; top: 0;
+    width: 20px;
+    font-size: 1.2em;
+    line-height: 1.1em;
+    padding-bottom: .1em;
+    text-indent: -1px;
+    text-decoration: none;
+    @include link-colors(#ccc, #999);
+    @include border-bottom-right-radius(.3em);
+    text-align: center;
+    background: $main-bg;
+    border-bottom: 1px solid $sidebar-border;
+    border-right: 1px solid $sidebar-border;
+    display: inline-block;
+  }
+}
+
+@media only screen and (min-width: 992px) {
+  body > header { font-size: 1.3em; }
+  body > nav + div > div { margin-right: $sidebar-width-wide; }
+  #articles {
+    padding-top: $pad-wide/2;
+    padding-bottom: $pad-wide/2;
+    + aside {
+      width: $sidebar-width-wide - $sidebar-pad-wide*2;
+      padding: 1.2em $sidebar-pad-wide $sidebar-pad-wide;
+    }
+  }
+}

themes/classic/sass/base/_solarized.scss

@@ -0,0 +1,16 @@
+$base03:    #002b36; //darkest blue
+$base02:    #073642; //dark blue
+$base01:    #586e75; //darkest gray
+$base00:    #657b83; //dark gray
+$base0:     #839496; //medium gray
+$base1:     #93a1a1; //medium light gray
+$base2:     #eee8d5; //cream
+$base3:     #fdf6e3; //white
+$yellow:    #b58900;
+$orange:    #cb4b16;
+$red:       #dc322f;
+$magenta:   #d33682;
+$violet:    #6c71c4;
+$blue:      #268bd2;
+$cyan:      #2aa198;
+$green:     #859900;

themes/classic/sass/base/_theme.scss

@@ -0,0 +1,76 @@
+$img-border: inline-image('dotted-border.png');
+
+// Main Link Colors
+$link-color: lighten(#165b94, 3) !default;
+$link-color-hover: adjust-hue($link-color, -200) !default;
+$link-color-visited: darken(adjust_hue($link_color, 70), 10) !default;
+$link-color-active: darken($link-color-hover, 15) !default;
+
+// Main Section Colors
+$page-bg: #252525 !default;
+$article-border: #eeeeee !default;
+$main-bg: #f5f5f5 !default;
+
+$header-bg: #333 !default;
+$header-border: lighten($header-bg, 15) !default;
+$title-color: #f2f2f2 !default;
+$subtitle-color: #aaa !default;
+
+$text-color: #222 !default;
+$text-color-light: #aaa !default;
+$type-border: #ddd !default;
+
+
+/* Navigation */
+$nav-bg: #ccc !default;
+$nav-color: darken($nav-bg, 38) !default;
+$nav-color-hover: darken($nav-color, 25) !default;
+$nav-placeholder: desaturate(darken($nav-bg, 10), 15) !default;
+$nav-border: darken($nav-bg, 10) !default;
+$nav-border-top: lighten($nav-bg, 15) !default;
+$nav-border-bottom: darken($nav-bg, 25) !default;
+$nav-border-left: darken($nav-bg, 11) !default;
+$nav-border-right: lighten($nav-bg, 7) !default;
+
+/* Sidebar colors */
+$sidebar-bg: #eee !default;
+$sidebar-link-color: $link-color !default;
+$sidebar-link-color-hover: $link-color-hover !default;
+$sidebar-color: change-color(mix($text-color, $sidebar-bg, 80), $hue: hue($sidebar-bg), $saturation: saturation($sidebar-bg)/2) !default;
+$sidebar-border: desaturate(darken($sidebar-bg, 7), 10) !default;
+$sidebar-border: darken($sidebar-bg, 7) !default;
+$sidebar-link-color-subdued: lighten($sidebar-color, 20) !default;
+$sidebar-link-color-subdued-hover: $sidebar-link-color-hover !default;
+$twitter-status-link: lighten($sidebar-link-color-subdued, 15) !default;
+
+$footer-color: #888 !default;
+$footer-bg: #ccc !default;
+$footer-color: darken($footer-bg, 38) !default;
+$footer-color-hover: darken($footer-color, 10) !default;
+$footer-border-top: lighten($footer-bg, 15) !default;
+$footer-border-bottom: darken($footer-bg, 15) !default;
+$footer-link-color: darken($footer-bg, 38) !default;
+$footer-link-color-hover: darken($footer-color, 25) !default;
+$page-border-bottom: darken($footer-bg, 5) !default;
+
+
+/* Core theme application */
+
+article a, #articles + aside a {
+  @include link-colors($link-color, $hover: $link-color-hover, $focus: $link-color-hover, $visited: $link-color-visited, $active: $link-color-active);
+}
+a { @include transition(color, .5s); }
+
+html {
+  background: $page-bg image-url('line-tile.png') top left;
+}
+body {
+  > div {
+    background: $sidebar-bg image-url('noise.png') top left;
+    border-bottom: 1px solid $page-border-bottom;
+    > div {
+      background: $main-bg image-url('noise.png') top left;
+      border-right: 1px solid $sidebar-border;
+    }
+  }
+}

themes/classic/sass/base/_typography.scss

@@ -0,0 +1,130 @@
+$blockquote: $type-border !default;
+$mono: Menlo, Monaco, "Andale Mono", "lucida console", "Courier New", monospace;
+
+// Fonts
+.heading {
+  font-family: "PT Serif", "Georgia", "Helvetica Neue", Arial, sans-serif;
+}
+.sans { font-family: "PT Sans", "Helvetica Neue", Arial, sans-serif; }
+.serif { font-family: "PT Serif", Georgia, Times, "Times New Roman", serif; }
+.mono { font-family: $mono; }
+
+body > header h1 {
+  font-size: 2.6em;
+  @extend .heading;
+  font-weight: normal;
+  line-height: 1.2em;
+  margin-bottom: 0.6667em;
+}
+
+body {
+  line-height: 1.5em;
+  color: $text-color;
+  @extend .serif;
+}
+
+#{headings()}{
+  @extend .heading;
+  text-rendering: optimizelegibility;
+  margin-bottom: 1em;
+  font-weight: bold;
+}
+h1 {
+  font-size: 3.2em;
+  line-height: 1.2em;
+  @media only screen and (max-width: 768px) { font-size: 2.2em; }
+}
+
+
+h2, section h1 {
+  font-size: 1.5em;
+}
+h3, section h2, section section h1 {
+  font-size: 1.3em;
+}
+h4, section h3, section section h2, section section section h1 {
+  font-size: 1em;
+}
+h5, section h4, section section h3 {
+  font-size: .9em;
+}
+h6, section h5, section section h4, section section section h3 {
+  font-size: .8em;
+}
+p, blockquote, ul, ol { margin-bottom: 1.5em; }
+
+ul{ list-style-type: circle; }
+
+ol{ list-style-type: decimal; ol { list-style-type: lower-alpha; } }
+ul ul, ol ol { margin-left: 1.75em; }
+
+strong { font-weight: bold; }
+
+em { font-style: italic; }
+
+sup, sub { font-size: 0.8em; position: relative;  display: inline-block; }
+sup { top: -.5em; }
+sub { bottom: -.5em; }
+
+q { font-style: italic;
+  &:before { content: "\201C"; }
+  &:after { content: "\201D"; }
+}
+
+em, dfn { font-style: italic; }
+
+strong, dfn { font-weight: bold; }
+
+del, s { text-decoration: line-through; }
+
+abbr, acronym { border-bottom: 1px dotted; cursor: help; }
+
+pre, code, tt { @extend .mono-font; }
+
+sub, sup { line-height: 0; }
+
+hr { margin-bottom: 0.2em; }
+
+small { font-size: .8em; }
+
+big { font-size: 1.2em; }
+
+blockquote {
+  $bq-margin: 1.2em;
+  font-style: italic;
+  position: relative;
+  font-size: 1.2em;
+  line-height: 1.5em;
+  padding-left: 1em;
+  border-left: 4px solid rgba($text-color-light, .5);
+  cite {
+    font-style: italic;
+    a { color: $text-color-light !important; word-wrap: break-word; }
+    &:before { content: '–'; padding:{right: .3em; left: .3em;} color: $text-color-light; }
+  }
+  @media only screen and (min-width: 992px) {
+    padding-left: 1.5em;
+    border-left-width: 4px;
+  }
+}
+
+.has-pullquote:before {
+  /* Reset metrics. */
+  padding: 0;
+  border: none;
+
+  /* Content */
+  content: attr(data-pullquote);
+
+  /* Pull out to the right, modular scale based margins. */
+  float: right;
+  width: 45%;
+  margin: .5em 0 1em 1.5em;
+
+  /* Baseline correction */
+  position: relative;
+  top: 7px;
+  font-size: 1.4em;
+  line-height: 1.45em;
+}
+

themes/classic/sass/base/_utilities.scss

@@ -0,0 +1,21 @@
+@mixin mask-image($img, $repeat: no-repeat){
+  @include experimental(mask-image, image-url($img), -webkit, -moz, -o, -ms);
+  @include experimental(mask-repeat, $repeat, -webkit, -moz, -o, -ms);
+  width: image-width($img);
+  height: image-height($img);
+}
+
+@mixin selection($bg, $color: inherit, $text-shadow: none){
+  * {
+    &::-moz-selection { background: $bg; color: $color; text-shadow: $text-shadow; }
+    &::-webkit-selection { background: $bg; color: $color; text-shadow: $text-shadow; }
+    &::selection { background: $bg; color: $color; text-shadow: $text-shadow; }
+  }
+}
+
+@function text-color($color, $dark: dark, $light: light){
+  $text-color: ( (red($color)*299) + (green($color)*587) + (blue($color)*114) ) / 1000;
+  $text-color: if($text-color >= 150, $dark, $light);
+  @return $text-color;
+}
+

themes/classic/sass/partials/_archive.scss

@@ -0,0 +1,72 @@
+#articles .blog-archives {
+  article {
+    padding: 1em 0 1em;
+    position: relative;
+    background: $img-border bottom left repeat-x;
+    &:last-child {
+      background: none;
+    }
+  }
+  h2 {
+    background: none;
+    display: none;
+  }
+  h1, h2 { color: $text-color; margin-bottom: .3em; }
+  h1 {
+    font-size: 1.5em;
+    a {
+      @include hover-link;
+      color: inherit;
+      &:hover { color: $link-color-hover; }
+      font-weight: normal;
+      display: inline-block;
+    }
+  }
+  a.category, time {
+    @extend .sans;
+    color: $text-color-light;
+  }
+  color: $text-color-light;
+  .entry-content { display: none; }
+  time {
+    font-size: .9em;
+    line-height: 1em;
+    .month, .day { display: inline-block; }
+    .month { text-transform: uppercase; }
+  }
+  p { margin-bottom: 1em; }
+  &, .entry-content { a { @include link-colors(inherit, $link-color-hover); }}
+  a:hover { color: $link-color-hover; }
+  @media only screen and (min-width: 550px) {
+    article { margin-left: 5em; }
+    h2 {
+      background: none;
+      display: inline-block;
+      float: left;
+      padding-top: .75em;
+      &:first-child { padding-top: .75em; }
+    }
+    time {
+      position: absolute;
+      text-align: right;
+      left: 0em;
+      top: 1.8em;
+    }
+    .year { display: none; }
+    article {
+      padding:{left: 4.5em; bottom: .7em;}
+    }
+  a.category {
+    //text-align: right;
+    line-height: 1.1em;
+    //float: right;
+    }
+  }
+}
+#articles .blog-archives.category {
+  article {
+    margin-left: 0;
+    padding-left: 6.8em;
+  }
+  .year { display: inline; }
+}

themes/classic/sass/partials/_page.scss

@@ -1,13 +0,0 @@
-html {
-  background: $page-bg image-url('line-tile.png') top left;
-}
-body {
-  > div {
-    background: $sidebar-bg image-url('noise.png') top left;
-    border-bottom: 1px solid $page-border-bottom;
-    > div {
-      background: $main-bg image-url('noise.png') top left;
-      border-right: 1px solid $sidebar-border;
-    }
-  }
-}

themes/classic/sass/partials/sidebar/_base.scss

@@ -0,0 +1,56 @@
+.side-shadow-border {
+  @include box-shadow(lighten($sidebar-bg, 5) 0 1px);
+}
+#articles + aside {
+  color: $sidebar-color;
+  padding-top: 1.2em;
+  text-shadow: lighten($sidebar-bg, 8) 0 1px;
+  section {
+    @extend .sans;
+    font-size: .8em;
+    line-height: 1.4em;
+    margin-bottom: 1.5em;
+    h1 {
+      margin: 1.5em 0 0;
+      padding-bottom: .2em;
+      border-bottom: 1px solid $sidebar-border;
+      @extend .side-shadow-border;
+      + p {
+        padding-top: .4em;
+      }
+    }
+  }
+  ul {
+    margin-bottom: 0.5em;
+  }
+  li {
+    list-style: none;
+    padding: .5em 0;
+    margin: 0;
+    border-bottom: 1px solid $sidebar-border;
+    @extend .side-shadow-border;
+    p:last-child {
+      margin-bottom: 0;
+    }
+  }
+  a {
+    color: inherit;
+    @include transition(color, .5s);
+  }
+  &:hover a, &:hover #tweets a { color: $sidebar-link-color;
+    &:hover { color: $sidebar-link-color-hover; }
+  }
+  #recent_posts {
+    time {
+      text-transform: uppercase;
+      font-size: .9em;
+      color: #666;
+    }
+  }
+}
+.aside-alt-link {
+  color: $sidebar-link-color-subdued;
+  &:hover {
+    color: $sidebar-link-color-subdued-hover;
+  }
+}

themes/classic/sass/partials/sidebar/_delicious.scss

@@ -0,0 +1,4 @@
+.delicious-posts {
+  a.delicious-link { margin-bottom: .5em; display: block; }
+  p { font-size: 1em; }
+}

themes/classic/sass/partials/sidebar/_pinboard.scss

@@ -0,0 +1,12 @@
+#pinboard_linkroll {
+  .pin-title, .pin-description {
+    display: block;
+    margin-bottom: .5em;
+  }
+  .pin-tag {
+    @include hover-link;
+    @extend .aside-alt-link;
+    &:after { content: ','; }
+    &:last-child:after { content: ''; }
+  }
+}

themes/classic/sass/partials/sidebar/_twitter.scss

@@ -0,0 +1,33 @@
+#tweets {
+  .loading {
+    background: inline-image('bird_32_gray.png') no-repeat center .5em;
+    color: darken($sidebar-bg, 18);
+    text-shadow: $main-bg 0 1px;
+    text-align: center;
+    padding: 2.5em 0 .5em;
+    &.error {
+      background: inline-image('bird_32_gray_fail.png') no-repeat center .5em;
+    }
+  }
+  a { color: $sidebar-link-color-subdued; @include hover-link; }
+  p {
+    position: relative;
+    padding-right: 1em;
+  }
+  a[href*=status]{
+    color: $twitter-status-link;
+    float: right;
+    padding: 0 0 .1em 1em;
+    position: relative; right: -1.3em;
+    text-shadow: #fff 0 1px;
+    font-size: .7em;
+    span { font-size: 1.5em; }
+    &:hover {
+      color: $sidebar-link-color-subdued-hover;
+      text-decoration: none;
+    }
+  }
+  a[href*='twitter.com/search']{
+    @extend .aside-alt-link;
+  }
+}