diff --git a/assets/stylesheets/fonts.css b/assets/stylesheets/base/fonts.css
similarity index 100%
rename from assets/stylesheets/fonts.css
rename to assets/stylesheets/base/fonts.css
diff --git a/assets/stylesheets/formhack.css b/assets/stylesheets/base/formhack.css
similarity index 100%
rename from assets/stylesheets/formhack.css
rename to assets/stylesheets/base/formhack.css
diff --git a/assets/stylesheets/forms.css b/assets/stylesheets/base/forms.css
similarity index 100%
rename from assets/stylesheets/forms.css
rename to assets/stylesheets/base/forms.css
diff --git a/assets/stylesheets/base/index.css b/assets/stylesheets/base/index.css
new file mode 100644
index 0000000..9776ea5
--- /dev/null
+++ b/assets/stylesheets/base/index.css
@@ -0,0 +1,4 @@
+@import './fonts';
+@import './typography';
+@import './formhack';
+@import './forms';
diff --git a/assets/stylesheets/typography.css b/assets/stylesheets/base/typography.css
similarity index 100%
rename from assets/stylesheets/typography.css
rename to assets/stylesheets/base/typography.css
diff --git a/assets/stylesheets/course.css b/assets/stylesheets/course/card.css
similarity index 100%
rename from assets/stylesheets/course.css
rename to assets/stylesheets/course/card.css
diff --git a/assets/stylesheets/course/index.css b/assets/stylesheets/course/index.css
new file mode 100644
index 0000000..b1e29fe
--- /dev/null
+++ b/assets/stylesheets/course/index.css
@@ -0,0 +1 @@
+@include './card'
diff --git a/assets/stylesheets/footer.css b/assets/stylesheets/global/footer.css
similarity index 100%
rename from assets/stylesheets/footer.css
rename to assets/stylesheets/global/footer.css
diff --git a/assets/stylesheets/header.css b/assets/stylesheets/global/header.css
similarity index 100%
rename from assets/stylesheets/header.css
rename to assets/stylesheets/global/header.css
diff --git a/assets/stylesheets/global.css b/assets/stylesheets/global/index.css
similarity index 62%
rename from assets/stylesheets/global.css
rename to assets/stylesheets/global/index.css
index ffa87de..ffc7809 100644
--- a/assets/stylesheets/global.css
+++ b/assets/stylesheets/global/index.css
@@ -1,3 +1,7 @@
+@import './layout';
+@import './header';
+@import './footer';
+
 body {
   background-color: var(--color-bg-default);
   color: var(--color-text-default);
@@ -21,72 +25,6 @@ body {
   flex: 0 0 auto;
 }
 
-.wrapper {
-  max-width: var(--content-max-width);
-  margin: 0 auto;
-  padding: 0 2vw;
-}
-
-@block wrapper-with-sidebar {
-  @media (--breakpoint-desktop) {
-    display: flex;
-    align-items: flex-start;
-  }
-
-  @element sidebar {
-    @media (--breakpoint-desktop) {
-      flex: 0 0 220px;
-      padding: var(--grid-gutter);
-      border-radius: 7px;
-      box-shadow: var(--card-box-shadow);
-
-      & > h2 {
-        margin-bottom: calc(var(--grid-gutter) * 3);
-      }
-    }
-  }
-
-  @element content {
-    padding: var(--grid-gutter) 0;
-
-    @media (--breakpoint-desktop) {
-      flex: 1 1 auto;
-      margin-left: var(--grid-gutter);
-      overflow: hidden;
-    }
-  }
-}
-
-.grid-list {
-  display: flex;
-  flex-wrap: wrap;
-  justify-content: space-between;
-  margin: 0 calc(var(--grid-gutter) / 2 * -1);
-
-  & > * {
-    box-sizing: border-box;
-    margin: 0 calc(var(--grid-gutter) / 2) var(--grid-gutter);
-    flex: 0 0 calc(50% - var(--grid-gutter));
-
-    @media (--breakpoint-desktop) {
-      flex: 0 0 calc(33% - var(--grid-gutter));
-    }
-  }
-}
-
-.grid-list-small {
-  display: flex;
-  flex-wrap: wrap;
-  justify-content: space-between;
-  margin: 0 calc(var(--grid-gutter) / 2 * -1);
-
-  & > * {
-    box-sizing: border-box;
-    margin: 0 calc(var(--grid-gutter) / 2) var(--grid-gutter);
-    flex: 0 0 calc(50% - var(--grid-gutter));
-  }
-}
-
 .table-of-contents {
   & ul {
     list-style: none;
diff --git a/assets/stylesheets/global/layout.css b/assets/stylesheets/global/layout.css
new file mode 100644
index 0000000..be6ce0a
--- /dev/null
+++ b/assets/stylesheets/global/layout.css
@@ -0,0 +1,65 @@
+.wrapper {
+  max-width: var(--content-max-width);
+  margin: 0 auto;
+  padding: 0 2vw;
+}
+
+@block wrapper-with-sidebar {
+  @media (--breakpoint-desktop) {
+    display: flex;
+    align-items: flex-start;
+  }
+
+  @element sidebar {
+    @media (--breakpoint-desktop) {
+      flex: 0 0 220px;
+      padding: var(--grid-gutter);
+      border-radius: 7px;
+      box-shadow: var(--card-box-shadow);
+
+      & > h2 {
+        margin-bottom: calc(var(--grid-gutter) * 3);
+      }
+    }
+  }
+
+  @element content {
+    padding: var(--grid-gutter) 0;
+
+    @media (--breakpoint-desktop) {
+      flex: 1 1 auto;
+      margin-left: var(--grid-gutter);
+      overflow: hidden;
+    }
+  }
+}
+
+.grid-list {
+  display: flex;
+  flex-wrap: wrap;
+  justify-content: space-between;
+  margin: 0 calc(var(--grid-gutter) / 2 * -1);
+
+  & > * {
+    box-sizing: border-box;
+    margin: 0 calc(var(--grid-gutter) / 2) var(--grid-gutter);
+    flex: 0 0 calc(50% - var(--grid-gutter));
+
+    @media (--breakpoint-desktop) {
+      flex: 0 0 calc(33% - var(--grid-gutter));
+    }
+  }
+}
+
+.grid-list-small {
+  display: flex;
+  flex-wrap: wrap;
+  justify-content: space-between;
+  margin: 0 calc(var(--grid-gutter) / 2 * -1);
+
+  & > * {
+    box-sizing: border-box;
+    margin: 0 calc(var(--grid-gutter) / 2) var(--grid-gutter);
+    flex: 0 0 calc(50% - var(--grid-gutter));
+  }
+}
diff --git a/assets/stylesheets/module-lesson.css b/assets/stylesheets/lesson/index.css
similarity index 100%
rename from assets/stylesheets/module-lesson.css
rename to assets/stylesheets/lesson/index.css
diff --git a/assets/stylesheets/style.css b/assets/stylesheets/style.css
index 23fcb3a..737b56f 100644
--- a/assets/stylesheets/style.css
+++ b/assets/stylesheets/style.css
@@ -1,17 +1,13 @@
 @import 'normalize.css';
 
 @import './variables';
-@import './fonts';
 
-@import './typography';
-@import './formhack';
-@import './forms';
-@import './hljs-github';
+@import './base';
 
 @import './global';
-@import './header';
-@import './footer';
+
+@import './hljs-github';
 
 @import './course';
 @import './landing-page';
-@import './module-lesson';
+@import './lesson';
diff --git a/public/stylesheets/style.css b/public/stylesheets/style.css
index 627abc1..17d33e0 100644
--- a/public/stylesheets/style.css
+++ b/public/stylesheets/style.css
@@ -755,144 +755,6 @@ input[type="reset"]:focus,
   margin-top: -22px;
 }
 
-/*
-
-github.com style (c) Vasily Polovnyov <vast@whiteants.net>
-
-*/
-
-.hljs {
-  display: block;
-  overflow-x: auto;
-  padding: 0.5em;
-  color: #333;
-  background: #f8f8f8;
-}
-
-.hljs-comment,
-.hljs-quote {
-  color: #998;
-  font-style: italic;
-}
-
-.hljs-keyword,
-.hljs-selector-tag,
-.hljs-subst {
-  color: #333;
-  font-weight: bold;
-}
-
-.hljs-number,
-.hljs-literal,
-.hljs-variable,
-.hljs-template-variable,
-.hljs-tag .hljs-attr {
-  color: #008080;
-}
-
-.hljs-string,
-.hljs-doctag {
-  color: #d14;
-}
-
-.hljs-title,
-.hljs-section,
-.hljs-selector-id {
-  color: #900;
-  font-weight: bold;
-}
-
-.hljs-subst {
-  font-weight: normal;
-}
-
-.hljs-type,
-.hljs-class .hljs-title {
-  color: #458;
-  font-weight: bold;
-}
-
-.hljs-tag,
-.hljs-name,
-.hljs-attribute {
-  color: #000080;
-  font-weight: normal;
-}
-
-.hljs-regexp,
-.hljs-link {
-  color: #009926;
-}
-
-.hljs-symbol,
-.hljs-bullet {
-  color: #990073;
-}
-
-.hljs-built_in,
-.hljs-builtin-name {
-  color: #0086b3;
-}
-
-.hljs-meta {
-  color: #999;
-  font-weight: bold;
-}
-
-.hljs-deletion {
-  background: #fdd;
-}
-
-.hljs-addition {
-  background: #dfd;
-}
-
-.hljs-emphasis {
-  font-style: italic;
-}
-
-.hljs-strong {
-  font-weight: bold;
-}
-
-body {
-  background-color: #fff;
-  color: #2a303a;
-  font-family: 'roboto', Helvetica, sans-serif;
-  font-size: 16px;
-  font-size: 1rem;
-  line-height: 1.5em;
-}
-
-#main {
-  display: -webkit-box;
-  display: -ms-flexbox;
-  display: flex;
-  -webkit-box-orient: vertical;
-  -webkit-box-direction: normal;
-      -ms-flex-direction: column;
-          flex-direction: column;
-  min-height: 100vh;
-}
-
-#main__header {
-  -webkit-box-flex: 0;
-      -ms-flex: 0 0 auto;
-          flex: 0 0 auto;
-}
-
-#main__content {
-  -webkit-box-flex: 1;
-      -ms-flex: 1 0 auto;
-          flex: 1 0 auto;
-}
-
-#main__footer {
-  -webkit-box-flex: 0;
-      -ms-flex: 0 0 auto;
-          flex: 0 0 auto;
-}
-
 .wrapper {
   max-width: 980px;
   margin: 0 auto;
@@ -994,114 +856,6 @@ body {
           flex: 0 0 calc(50% - 22px);
 }
 
-.table-of-contents ul {
-  list-style: none;
-  margin: 22px 0;
-  padding: 0;
-  padding-left: 44px;
-}
-
-.table-of-contents ul li {
-  margin: 0 0 22px;
-  padding: 0;
-}
-
-.table-of-contents ul a {
-  display: block;
-}
-
-.table-of-contents ul a.active {
-  position: relative;
-  font-weight: bold;
-}
-
-.table-of-contents ul a.active:before,
-        .table-of-contents ul a.active:after {
-  position: absolute;
-  top: 0;
-}
-
-.table-of-contents ul a.active:before {
-  content: '';
-  left: -66px;
-  bottom: 0;
-  width: 3px;
-  background: #536171;
-}
-
-.table-of-contents ul a.active:after {
-  content: '👁';
-  left: -44px;
-}
-
-.sidebar-menu ul {
-  list-style: none;
-  margin: 22px 0;
-  padding: 0;
-}
-
-.sidebar-menu ul li {
-  margin: 0 0 22px;
-  padding: 0;
-}
-
-.sidebar-menu ul a {
-  display: block;
-}
-
-.sidebar-menu ul a.active {
-  font-weight: bold;
-}
-
-.main-navigation ul {
-  display: -webkit-box;
-  display: -ms-flexbox;
-  display: flex;
-  list-style: none;
-  -ms-flex-wrap: wrap;
-      flex-wrap: wrap;
-  -webkit-box-pack: center;
-      -ms-flex-pack: center;
-          justify-content: center;
-  margin: 0;
-  padding: 0;
-}
-
-@media (min-width: 700px) {
-
-  .main-navigation ul {
-    -webkit-box-pack: end;
-        -ms-flex-pack: end;
-            justify-content: flex-end;
-  }
-}
-
-.main-navigation ul li {
-  margin: 0;
-}
-
-.main-navigation ul li + li {
-  margin-left: 5.5px;
-}
-
-.main-navigation ul li a {
-  display: block;
-  text-transform: uppercase;
-  font-weight: bold;
-  padding: 0.7em 1em;
-  color: #8091a5;
-  border-radius: 3px;
-}
-
-.main-navigation ul li a.active,
-          .main-navigation ul li a:hover {
-  background: #f7f9fa;
-}
-
-.main-navigation ul li a.active {
-  color: #2a303a;
-}
-
 .header {
   margin-bottom: 22px;
 }
@@ -1395,7 +1149,16 @@ body {
   height: auto;
 }
 
-.course-card {
+body {
+  background-color: #fff;
+  color: #2a303a;
+  font-family: 'roboto', Helvetica, sans-serif;
+  font-size: 16px;
+  font-size: 1rem;
+  line-height: 1.5em;
+}
+
+#main {
   display: -webkit-box;
   display: -ms-flexbox;
   display: flex;
@@ -1403,66 +1166,237 @@ body {
   -webkit-box-direction: normal;
       -ms-flex-direction: column;
           flex-direction: column;
-  min-height: 30vh;
-  padding: 22px;
-
-  border-radius: 3px;
-  -webkit-box-shadow: 0px 1px 3px 0px rgba(0, 0, 0, .45);
-          box-shadow: 0px 1px 3px 0px rgba(0, 0, 0, .45);
+  min-height: 100vh;
 }
 
-.course-card > * + * {
-  margin-top: 22px;
+#main__header {
+  -webkit-box-flex: 0;
+      -ms-flex: 0 0 auto;
+          flex: 0 0 auto;
 }
 
-.course-card__categories {
-    -webkit-box-flex: 0;
-        -ms-flex: 0 0 1.5em;
-            flex: 0 0 1.5em;
+#main__content {
+  -webkit-box-flex: 1;
+      -ms-flex: 1 0 auto;
+          flex: 1 0 auto;
 }
 
-.course-card__category {
-    display: inline-block;
-    margin-right: 22px;
-    color: #8091a5;
-    font-size: 0.75em;
-    letter-spacing: 2px;
+#main__footer {
+  -webkit-box-flex: 0;
+      -ms-flex: 0 0 auto;
+          flex: 0 0 auto;
 }
 
-.course-card__title {
-    -webkit-box-flex: 1;
-        -ms-flex: 1 1 auto;
-            flex: 1 1 auto;
-    margin-bottom: 0;
+.table-of-contents ul {
+  list-style: none;
+  margin: 22px 0;
+  padding: 0;
+  padding-left: 44px;
 }
 
-.course-card__description-wrapper {
-    -webkit-box-flex: 1;
-        -ms-flex: 1 1 auto;
-            flex: 1 1 auto;
+.table-of-contents ul li {
+  margin: 0 0 22px;
+  padding: 0;
 }
 
-.course-card__description-wrapper p {
+.table-of-contents ul a {
+  display: block;
+}
+
+.table-of-contents ul a.active {
+  position: relative;
+  font-weight: bold;
+}
+
+.table-of-contents ul a.active:before,
+        .table-of-contents ul a.active:after {
+  position: absolute;
+  top: 0;
+}
+
+.table-of-contents ul a.active:before {
+  content: '';
+  left: -66px;
+  bottom: 0;
+  width: 3px;
+  background: #536171;
+}
+
+.table-of-contents ul a.active:after {
+  content: '👁';
+  left: -44px;
+}
+
+.sidebar-menu ul {
+  list-style: none;
+  margin: 22px 0;
+  padding: 0;
+}
+
+.sidebar-menu ul li {
+  margin: 0 0 22px;
+  padding: 0;
+}
+
+.sidebar-menu ul a {
+  display: block;
+}
+
+.sidebar-menu ul a.active {
+  font-weight: bold;
+}
+
+.main-navigation ul {
+  display: -webkit-box;
+  display: -ms-flexbox;
+  display: flex;
+  list-style: none;
+  -ms-flex-wrap: wrap;
+      flex-wrap: wrap;
+  -webkit-box-pack: center;
+      -ms-flex-pack: center;
+          justify-content: center;
+  margin: 0;
+  padding: 0;
+}
+
+@media (min-width: 700px) {
+
+  .main-navigation ul {
+    -webkit-box-pack: end;
+        -ms-flex-pack: end;
+            justify-content: flex-end;
+  }
+}
+
+.main-navigation ul li {
   margin: 0;
 }
 
-.course-card__link-wrapper {
-    -webkit-box-flex: 0;
-        -ms-flex: 0 0 auto;
-            flex: 0 0 auto;
+.main-navigation ul li + li {
+  margin-left: 5.5px;
 }
 
-.course-card__link {
-    display: inline-block;
-    padding-bottom: 0.3em;
-    border-bottom: 1px solid #5c9fef;
-    text-transform: uppercase;
-    color: #5c9fef;
-    font-size: 0.75em;
-    line-height: 2.17;
-    letter-spacing: 2px;
+.main-navigation ul li a {
+  display: block;
+  text-transform: uppercase;
+  font-weight: bold;
+  padding: 0.7em 1em;
+  color: #8091a5;
+  border-radius: 3px;
 }
 
+.main-navigation ul li a.active,
+          .main-navigation ul li a:hover {
+  background: #f7f9fa;
+}
+
+.main-navigation ul li a.active {
+  color: #2a303a;
+}
+
+/*
+
+github.com style (c) Vasily Polovnyov <vast@whiteants.net>
+
+*/
+
+.hljs {
+  display: block;
+  overflow-x: auto;
+  padding: 0.5em;
+  color: #333;
+  background: #f8f8f8;
+}
+
+.hljs-comment,
+.hljs-quote {
+  color: #998;
+  font-style: italic;
+}
+
+.hljs-keyword,
+.hljs-selector-tag,
+.hljs-subst {
+  color: #333;
+  font-weight: bold;
+}
+
+.hljs-number,
+.hljs-literal,
+.hljs-variable,
+.hljs-template-variable,
+.hljs-tag .hljs-attr {
+  color: #008080;
+}
+
+.hljs-string,
+.hljs-doctag {
+  color: #d14;
+}
+
+.hljs-title,
+.hljs-section,
+.hljs-selector-id {
+  color: #900;
+  font-weight: bold;
+}
+
+.hljs-subst {
+  font-weight: normal;
+}
+
+.hljs-type,
+.hljs-class .hljs-title {
+  color: #458;
+  font-weight: bold;
+}
+
+.hljs-tag,
+.hljs-name,
+.hljs-attribute {
+  color: #000080;
+  font-weight: normal;
+}
+
+.hljs-regexp,
+.hljs-link {
+  color: #009926;
+}
+
+.hljs-symbol,
+.hljs-bullet {
+  color: #990073;
+}
+
+.hljs-built_in,
+.hljs-builtin-name {
+  color: #0086b3;
+}
+
+.hljs-meta {
+  color: #999;
+  font-weight: bold;
+}
+
+.hljs-deletion {
+  background: #fdd;
+}
+
+.hljs-addition {
+  background: #dfd;
+}
+
+.hljs-emphasis {
+  font-style: italic;
+}
+
+.hljs-strong {
+  font-weight: bold;
+}
+
+@include './card';
+
 .module-hero-image {}
 
 .module-hero-image__wrapper {