From 801e08e73624005ed498101ad616d987f70f8cdf Mon Sep 17 00:00:00 2001
From: Eugen Wissner <belka@caraus.de>
Date: Sun, 12 Jul 2026 17:04:26 +0200
Subject: Add original style sources and an SCSS compiler

---
 assets/_sass/_layout.scss                    | 165 ++++++++++
 assets/_sass/base/_animations.scss           |  46 +++
 assets/_sass/base/_helpers.scss              |  10 +
 assets/_sass/base/_mixins.scss               |  95 ++++++
 assets/_sass/base/_reset.scss                |  35 +++
 assets/_sass/base/_syntax.scss               | 260 ++++++++++++++++
 assets/_sass/base/_vars.scss                 |  41 +++
 assets/_sass/components/_page.scss           | 174 +++++++++++
 assets/_sass/components/_pagination.scss     |  20 ++
 assets/_sass/components/_post.scss           | 447 +++++++++++++++++++++++++++
 assets/_sass/main.scss                       |  21 ++
 assets/_sass/pages/_fourofour.scss           |   9 +
 assets/_sass/partials/_burger-menu.scss      |  68 ++++
 assets/_sass/partials/_header-separator.scss |  27 ++
 14 files changed, 1418 insertions(+)
 create mode 100644 assets/_sass/_layout.scss
 create mode 100644 assets/_sass/base/_animations.scss
 create mode 100644 assets/_sass/base/_helpers.scss
 create mode 100644 assets/_sass/base/_mixins.scss
 create mode 100644 assets/_sass/base/_reset.scss
 create mode 100644 assets/_sass/base/_syntax.scss
 create mode 100644 assets/_sass/base/_vars.scss
 create mode 100644 assets/_sass/components/_page.scss
 create mode 100644 assets/_sass/components/_pagination.scss
 create mode 100644 assets/_sass/components/_post.scss
 create mode 100644 assets/_sass/main.scss
 create mode 100644 assets/_sass/pages/_fourofour.scss
 create mode 100644 assets/_sass/partials/_burger-menu.scss
 create mode 100644 assets/_sass/partials/_header-separator.scss

(limited to 'assets/_sass')

diff --git a/assets/_sass/_layout.scss b/assets/_sass/_layout.scss
new file mode 100644
index 0000000..0c2a1b7
--- /dev/null
+++ b/assets/_sass/_layout.scss
@@ -0,0 +1,165 @@
+.site-header {
+  display: grid;
+  @include justify-content();
+  padding: 0 20px;
+  text-align: center;
+
+  .site-header-wrapper {
+    position: relative;
+    overflow: hidden;
+    background: var(--main-color);
+    padding: 10px 25px 20px 25px;
+    border-radius: 0 0 5px 5px;
+    text-decoration: none;
+
+    @include transition(background .2s ease);
+
+    &:before { position: absolute; top: 0; left: -150%; content: ""; width: 50%; height: 100%;
+      background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, .3) 100%);
+      background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, .3) 100%);
+      @include skew(-45deg, 0);
+    }
+    &:hover {
+      background: var(--main-color-hover);
+      &:before {
+        animation: headerShine .35s;
+      }
+    }
+    .site-logo { display: block; margin: 0 0 10px;
+      img {
+        display: block;
+      }
+    }
+    .site-subtitle {
+      display: block;
+      font-family: 'Bebas Neue', sans-serif;
+      font-size: 11px;
+      line-height: 14px;
+      color: var(--grey-fc);
+    }
+    .site-title {
+      display: block;
+      font-family: 'Bebas Neue', sans-serif;
+      font-size: 26px;
+      line-height: 28px;
+      color: var(--grey-fc);
+    }
+  }
+}
+
+.site-navigation {
+  @include flexbox();
+  @include justify-content();
+  @include align-items();
+  @include flex-flow(row wrap);
+  gap: 10px 40px;
+  max-width: 800px;
+  margin: 30px auto 0;
+  padding: 0 20px;
+  text-align: center;
+
+  a, span {
+    position: relative;
+    text-decoration: none;
+    color: var(--grey-555);
+    padding: 0 0 2px;
+    @include transition(color .2s ease);
+    cursor: pointer;
+
+    &:before {
+      position: absolute;
+      opacity: 0;
+      left: 0;
+      bottom: 0;
+      width: 0%;
+      border-bottom: 2px solid var(--grey-222);
+
+      @include transition(width .18s ease, opacity .18s ease); content: "";
+    }
+
+    &:hover, &.active { color: var(--grey-222);
+      &:before {
+        width: 100%; opacity: 1;
+      }
+    }
+  }
+}
+
+@media screen and (max-width: 800px) {
+  .site-header {
+    position: fixed;
+    left: 0;
+    top: 0;
+    width: 100%;
+    z-index: 9;
+    background: var(--body-bg);
+    box-shadow: 0 2px 5px rgba(0, 0, 0, .1);
+
+    .site-header-wrapper {
+      @include flexbox();
+      @include align-items();
+      @include justify-content();
+      @include flex-flow(row wrap);
+      gap: 0 15px;
+      border-radius: 0;
+      padding: 20px;
+      background: transparent;
+
+      &:hover {
+        background: transparent;
+      }
+      .site-logo,
+      .site-subtitle {
+        display: none;
+      }
+      .site-title {
+        font-size: 32px;
+        line-height: 36px;
+        color: var(--main-color);
+      }
+    }
+  }
+
+  .site-navigation {
+    position: fixed;
+    bottom: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    @include justify-content(flex-start);
+    @include flex-flow(column nowrap);
+    gap: 20px 0;
+    @include translate(0, -100%);
+    @include transition(transform .25s ease-in-out);
+    padding: 100px 20px 0;
+    background: rgba(255, 255, 255, .9);
+    z-index: 10;
+
+    a, span {
+      color: var(--grey-222);
+      font-size: 30px;
+      line-height: 40px;
+    }
+  }
+}
+
+.wrapper {
+  max-width: 600px;
+  margin: 0 auto;
+  padding: 0 20px 35px;
+  border-bottom: 1px solid var(--grey-eee);
+
+  &.long {
+    max-width: 800px;
+  }
+}
+
+.site-footer {
+  max-width: 800px;
+  margin: 0 auto;
+  padding: 40px 20px;
+  font-size: 14px;
+  line-height: 22px;
+  color: var(--grey-ccc);
+  text-align: center;
+}
diff --git a/assets/_sass/base/_animations.scss b/assets/_sass/base/_animations.scss
new file mode 100644
index 0000000..2885970
--- /dev/null
+++ b/assets/_sass/base/_animations.scss
@@ -0,0 +1,46 @@
+@keyframes headerShine {
+  100% {
+    left: 150%;
+  }
+}
+
+@keyframes fadeIn {
+  from {
+    opacity: 0;
+  }
+  to {
+    opacity: 1;
+  }
+}
+
+@keyframes fadeOut {
+  from {
+    opacity: 1;
+  }
+  to {
+    opacity: 0;
+  }
+}
+
+@keyframes zoomIn {
+  from {
+    opacity: 0;
+    transform: scale3d(0.3, 0.3, 0.3);
+  }
+  to {
+    opacity: 1;
+  }
+}
+
+@keyframes zoomOut {
+  from {
+    opacity: 1;
+  }
+  50% {
+    opacity: 0;
+    transform: scale3d(0.3, 0.3, 0.3);
+  }
+  to {
+    opacity: 0;
+  }
+}
diff --git a/assets/_sass/base/_helpers.scss b/assets/_sass/base/_helpers.scss
new file mode 100644
index 0000000..d461516
--- /dev/null
+++ b/assets/_sass/base/_helpers.scss
@@ -0,0 +1,10 @@
+.hidden {
+  border: 0;
+  clip: rect(0 0 0 0);
+  height: 1px;
+  margin: -1px;
+  overflow: hidden;
+  padding: 0;
+  position: absolute;
+  width: 1px;
+}
diff --git a/assets/_sass/base/_mixins.scss b/assets/_sass/base/_mixins.scss
new file mode 100644
index 0000000..7541d12
--- /dev/null
+++ b/assets/_sass/base/_mixins.scss
@@ -0,0 +1,95 @@
+@mixin transition($transitions...) {
+  transition: $transitions;
+  -moz-transition: $transitions;
+  -webkit-transition: $transitions;
+  -o-transition: $transitions;
+}
+
+@mixin no-select {
+  -webkit-touch-callout: none;
+  -webkit-user-select: none;
+  -khtml-user-select: none;
+  -moz-user-select: none;
+  -ms-user-select: none;
+  user-select: none;
+}
+
+@mixin placeholder {
+  &.placeholder { @content }
+  &:-ms-input-placeholder { @content }
+  &:-moz-placeholder { @content }
+  &::-moz-placeholder { @content }
+  &::-webkit-input-placeholder { @content }
+}
+
+@mixin translate($val1, $val2) {
+  -webkit-transform: translate(#{$val1}, #{$val2});
+  -moz-transform: translate(#{$val1}, #{$val2});
+  -ms-transform: translate(#{$val1}, #{$val2});
+  -o-transform: translate(#{$val1}, #{$val2});
+  transform: translate(#{$val1}, #{$val2});
+}
+
+@mixin skew($x, $y) {
+  -webkit-transform: skew(#{$x}, #{$y});
+  -moz-transform: skew(#{$x}, #{$y});
+  -ms-transform: skew(#{$x}, #{$y});
+  -o-transform: skew(#{$x}, #{$y});
+  transform: skew(#{$x}, #{$y});
+}
+
+@mixin scale($val) {
+  -webkit-transform: scale(#{$val});
+  -moz-transform: scale(#{$val});
+  -ms-transform: scale(#{$val});
+  -o-transform: scale(#{$val});
+  transform: scale(#{$val});
+}
+
+@mixin rotate($deg) {
+  -webkit-transform: rotate(#{$deg});
+  -moz-transform: rotate(#{$deg});
+  -ms-transform: rotate(#{$deg});
+  -o-transform: rotate(#{$deg});
+  transform: rotate(#{$deg});
+}
+
+@mixin flexbox() {
+  display: -webkit-box;
+  display: -moz-box;
+  display: -ms-flexbox;
+  display: -webkit-flex;
+  display: flex;
+}
+
+@mixin inline-flex() {
+  display: -webkit-inline-box;
+  display: -webkit-inline-flex;
+  display: -moz-inline-flex;
+  display: -ms-inline-flexbox;
+  display: inline-flex;
+}
+
+@mixin flex($grow: 1, $shrink: 1, $basis: auto) {
+  -webkit-flex: $grow $shrink $basis;
+  -moz-flex: $grow $shrink $basis;
+  -ms-flex: $grow $shrink $basis;
+  flex: $grow $shrink $basis;
+}
+
+@mixin flex-flow($values: (row wrap)) {
+  -webkit-flex-flow: $values;
+  -moz-flex-flow: $values;
+  -ms-flex-flow: $values;
+  flex-flow: $values;
+}
+
+@mixin justify-content($pos: center) {
+  -webkit-justify-content: $pos;
+  justify-content: $pos;
+}
+
+@mixin align-items($align: center) {
+  -webkit-align-items: $align;
+  align-items: $align;
+}
diff --git a/assets/_sass/base/_reset.scss b/assets/_sass/base/_reset.scss
new file mode 100644
index 0000000..f896901
--- /dev/null
+++ b/assets/_sass/base/_reset.scss
@@ -0,0 +1,35 @@
+* {
+  box-sizing: border-box;
+  -moz-box-sizing: border-box;
+}
+
+body {
+  margin: 0;
+  padding: 0;
+  font-family: 'PT Serif', serif;
+  font-size: 18px;
+  line-height: 30px;
+  color: var(--grey-555);
+  background: var(--body-bg);
+}
+
+header,
+nav,
+section,
+main,
+article,
+aside,
+figure,
+footer,
+iframe,
+object,
+svg {
+  display: block;
+  margin: 0;
+}
+
+@media screen and (max-width: 800px) {
+  body {
+    padding: 80px 0 0;
+  }
+}
diff --git a/assets/_sass/base/_syntax.scss b/assets/_sass/base/_syntax.scss
new file mode 100644
index 0000000..8951f90
--- /dev/null
+++ b/assets/_sass/base/_syntax.scss
@@ -0,0 +1,260 @@
+.highlight {
+  background: var(--grey-fa);
+  border: 1px solid var(--grey-ccc);
+  padding: 30px;
+
+  .lineno {
+    padding: 0 15px 0 0;
+  }
+  // Comment
+  .c {
+    color: #998;
+    font-style: italic
+  }
+  // Error
+  .err {
+    color: #a61717;
+    background-color: #e3d2d2
+  }
+  // Keyword
+  .k {
+    font-weight: bold
+  }
+  // Operator
+  .o {
+    font-weight: bold
+  }
+  // Comment.Multiline
+  .cm {
+    color: #998;
+    font-style: italic
+  }
+  // Comment.Preproc
+  .cp {
+    color: #999;
+    font-weight: bold
+  }
+  // Comment.Single
+  .c1 {
+    color: #998;
+    font-style: italic
+  }
+  // Comment.Special
+  .cs {
+    color: #999;
+    font-weight: bold;
+    font-style: italic
+  }
+  // Generic.Deleted
+  .gd {
+    color: #000;
+    background-color: #fdd
+  }
+  // Generic.Deleted.Specific
+  .gd .x {
+    color: #000;
+    background-color: #faa
+  }
+  // Generic.Emph
+  .ge {
+    font-style: italic
+  }
+  // Generic.Error
+  .gr {
+    color: #a00
+  }
+  // Generic.Heading
+  .gh    {
+    color: #999
+  }
+  // Generic.Inserted
+  .gi    {
+    color: #000;
+    background-color: #dfd
+  }
+  // Generic.Inserted.Specific
+  .gi .x {
+    color: #000;
+    background-color: #afa
+  }
+  // Generic.Output
+  .go    {
+    color: #888
+  }
+  // Generic.Prompt
+  .gp    {
+    color: #555
+  }
+  // Generic.Strong
+  .gs    {
+    font-weight: bold
+  }
+  // Generic.Subheading
+  .gu    {
+    color: #aaa
+  }
+  // Generic.Traceback
+  .gt    {
+    color: #a00
+  }
+  // Keyword.Constant
+  .kc    {
+    font-weight: bold
+  }
+  // Keyword.Declaration
+  .kd    {
+    font-weight: bold
+  }
+  // Keyword.Pseudo
+  .kp    {
+    font-weight: bold
+  }
+  // Keyword.Reserved
+  .kr    {
+    font-weight: bold
+  }
+  // Keyword.Type
+  .kt    {
+    color: #458;
+    font-weight: bold
+  }
+  // Literal.Number
+  .m     {
+    color: #099
+  }
+  // Literal.String
+  .s     {
+    color: #d14
+  }
+  // Name.Attribute
+  .na    {
+    color: #008080
+  }
+  // Name.Builtin
+  .nb    {
+    color: #0086B3
+  }
+  // Name.Class
+  .nc    {
+    color: #458;
+    font-weight: bold
+  }
+  // Name.Constant
+  .no    {
+    color: #008080
+  }
+  // Name.Entity
+  .ni    {
+    color: #800080
+  }
+  // Name.Exception
+  .ne    {
+    color: #900;
+    font-weight: bold
+  }
+  // Name.Function
+  .nf    {
+    color: #900;
+    font-weight: bold
+  }
+  // Name.Namespace
+  .nn    {
+    color: #555
+  }
+  // Name.Tag
+  .nt    {
+    color: #000080
+  }
+  // Name.Variable
+  .nv    {
+    color: #008080
+  }
+  // Operator.Word
+  .ow    {
+    font-weight: bold
+  }
+  // Text.Whitespace
+  .w     {
+    color: #bbb
+  }
+  // Literal.Number.Float
+  .mf    {
+    color: #099
+  }
+  // Literal.Number.Hex
+  .mh    {
+    color: #099
+  }
+  // Literal.Number.Integer
+  .mi    {
+    color: #099
+  }
+  // Literal.Number.Oct
+  .mo    {
+    color: #099
+  }
+  // Literal.String.Backtick
+  .sb    {
+    color: #d14
+  }
+  // Literal.String.Char
+  .sc    {
+    color: #d14
+  }
+  // Literal.String.Doc
+  .sd    {
+    color: #d14
+  }
+  // Literal.String.Double
+  .s2    {
+    color: #d14
+  }
+  // Literal.String.Escape
+  .se    {
+    color: #d14
+  }
+  // Literal.String.Heredoc
+  .sh    {
+    color: #d14
+  }
+  // Literal.String.Interpol
+  .si    {
+    color: #d14
+  }
+  // Literal.String.Other
+  .sx    {
+    color: #d14
+  }
+  // Literal.String.Regex
+  .sr    {
+    color: #009926
+  }
+  // Literal.String.Single
+  .s1    {
+    color: #d14
+  }
+  // Literal.String.Symbol
+  .ss    {
+    color: #990073
+  }
+  // Name.Builtin.Pseudo
+  .bp    {
+    color: #999
+  }
+  // Name.Variable.Class
+  .vc    {
+    color: #008080
+  }
+  // Name.Variable.Global
+  .vg    {
+    color: #008080
+  }
+  // Name.Variable.Instance
+  .vi    {
+    color: #008080
+  }
+  // Literal.Number.Integer.Long
+  .il    {
+    color: #099
+  }
+}
diff --git a/assets/_sass/base/_vars.scss b/assets/_sass/base/_vars.scss
new file mode 100644
index 0000000..25435ff
--- /dev/null
+++ b/assets/_sass/base/_vars.scss
@@ -0,0 +1,41 @@
+:root, [data-theme="light"] {
+  --body-bg: #fafafa;
+
+  --main-color: #639f93;
+  --main-color-hover: #5b9287;
+
+  --form-success-bg: #d0f1cc;
+  --form-success-text: #597755;
+  --form-error-bg: #f1cccc;
+  --form-error-text: #775555;
+
+  --grey-222: #222;
+  --grey-555: #555;
+  --grey-aaa: #aaa;
+  --grey-ccc: #ccc;
+  --grey-ddd: #ddd;
+  --grey-eee: #eee;
+  --grey-fc:  #fcfcfc;
+  --grey-fa:  #fafafa;
+}
+
+[data-theme="dark"] {
+  --body-bg: #050505;
+
+  --main-color: #639f93;
+  --main-color-hover: #5b9287;
+
+  --form-success-bg: #d0f1cc;
+  --form-success-text: #597755;
+  --form-error-bg: #f1cccc;
+  --form-error-text: #775555;
+
+  --grey-222: #ddd;
+  --grey-555: #ddd;
+  --grey-aaa: #777;
+  --grey-ccc: #666;
+  --grey-ddd: #666;
+  --grey-eee: #222;
+  --grey-fc:  #fcfcfc;
+  --grey-fa:  #151515;
+}
diff --git a/assets/_sass/components/_page.scss b/assets/_sass/components/_page.scss
new file mode 100644
index 0000000..d4ec79b
--- /dev/null
+++ b/assets/_sass/components/_page.scss
@@ -0,0 +1,174 @@
+.page {
+  .page-title {
+    margin: 0 0 25px;
+    font-family: "PT Sans", sans-serif;
+    font-size: 32px;
+    line-height: 42px;
+    font-weight: 700;
+    color: var(--grey-222);
+  }
+  .page-content {
+    abbr {
+      border-bottom: 1px dotted var(--grey-555);
+      text-decoration: none;
+      cursor: help;
+    }
+    code,
+    kbd,
+    pre {
+      margin: 0;
+      font-family: monospace;
+      word-wrap: break-word;
+      word-break: break-word;
+      white-space: pre-wrap;
+    }
+    address,
+    cite,
+    var {
+      font-style: italic;
+    }
+    blockquote {
+      margin: 40px 0;
+      padding: 0 0 0 20px;
+      border-left: 3px solid var(--grey-555);
+      color: var(--grey-222);
+      font-weight: 700;
+    }
+    em,
+    strong {
+      color: var(--grey-222);
+    }
+
+    h1,
+    h2,
+    h3,
+    h4,
+    h5,
+    h6 {
+      font-family: "PT Sans", sans-serif;
+      margin: 40px 0 25px 0;
+      color: var(--grey-222);
+    }
+    h4,
+    h5,
+    h6 {
+      margin: 25px 0;
+    }
+    h1 {
+      font-size: 28px;
+    }
+    h2 {
+      font-size: 26px;
+    }
+    h3 {
+      font-size: 22px;
+    }
+    h4 {
+      font-size: 20px;
+    }
+    h5 {
+      font-size: 18px;
+    }
+    h6 {
+      font-size: 16px;
+    }
+
+    a {
+      color: var(--main-color);
+      &:hover {
+        text-decoration: none;
+      }
+    }
+
+    img {
+      display: block;
+      max-width: 100%;
+      height: auto;
+    }
+
+    ul {
+      list-style-type: disc;
+      list-style-position: inside;
+    }
+
+    ul,
+    ol {
+      margin: 15px 0;
+      padding: 0 0 0 20px;
+      ul,
+      ol {
+        padding: 0 0 0 20px;
+      }
+      li {
+        margin: 5px 0;
+        & > code {
+          font-size: 14px;
+          padding: 3px 6px;
+          margin: 0 4px;
+          background: var(--grey-fa);
+          border: 1px solid var(--grey-ccc);
+        }
+      }
+    }
+
+    dl {
+      margin: 40px 0;
+      dt {
+        margin: 10px 0 0;
+        font-weight: 700;
+      }
+      dd {
+        margin: 5px 0;
+        & > code {
+          font-size: 14px;
+          padding: 3px 6px;
+          margin: 0 4px;
+          background: var(--grey-fa);
+          border: 1px solid var(--grey-ccc);
+        }
+      }
+    }
+
+    p {
+      margin: 15px 0;
+      & > code {
+        font-size: 14px;
+        padding: 3px 6px;
+        margin: 0 4px;
+        background: var(--grey-fa);
+        border: 1px solid var(--grey-ccc);
+      }
+    }
+
+    .alignleft {
+      float: left;
+      margin: 20px 30px 10px 0;
+    }
+    .alignright {
+      float: right;
+      margin: 20px 0 10px 20px;
+    }
+    .aligncenter {
+      clear: both;
+      margin: 0 auto 20px;
+    }
+
+    figcaption {
+      font-size: 13px;
+      font-style: italic;
+      padding-top: 10px;
+    }
+
+    .iframe-wrapper {
+      position: relative;
+      padding-top: 56.25%;
+      & > iframe {
+        position: absolute;
+        top: 0;
+        left: 0;
+        width: 100%;
+        height: 100%;
+      }
+    }
+  }
+}
diff --git a/assets/_sass/components/_pagination.scss b/assets/_sass/components/_pagination.scss
new file mode 100644
index 0000000..fcb1b23
--- /dev/null
+++ b/assets/_sass/components/_pagination.scss
@@ -0,0 +1,20 @@
+.pagination {
+  display: grid;
+  grid-template-columns: 100px 1fr 100px;
+  margin: 50px 0 0;
+  font-size: 16px;
+
+  .previous,
+  .next {
+    text-decoration: none;
+    color: var(--grey-555);
+
+    &:hover {
+      text-decoration: underline;
+    }
+  }
+  .page_number {
+    text-align: center;
+    color: var(--grey-ccc);
+  }
+}
diff --git a/assets/_sass/components/_post.scss b/assets/_sass/components/_post.scss
new file mode 100644
index 0000000..5eed7cb
--- /dev/null
+++ b/assets/_sass/components/_post.scss
@@ -0,0 +1,447 @@
+.post-lists-title {
+  font-family: 'PT Sans', sans-serif;
+  font-size: 24px;
+  line-height: 42px;
+  font-weight: 700;
+  color: var(--grey-aaa);
+  margin: 0 0 40px;
+  text-align: center;
+
+  span {
+    color: var(--grey-222);
+  }
+}
+
+.post-list {
+  display: grid;
+  gap: 100px 0;
+}
+
+.post {
+  position: relative;
+
+  .post-title {
+    margin: 0 0 25px;
+    font-family: 'PT Sans', sans-serif;
+    font-size: 32px;
+    line-height: 42px;
+    font-weight: 700;
+    color: var(--grey-222);
+
+    a {
+      color: var(--grey-222);
+      text-decoration: none;
+
+      &:hover {
+        text-decoration: underline;
+      }
+    }
+  }
+
+  .post-author {
+    position: absolute;
+    top: 10px;
+    left: -200px;
+    width: 150px;
+    text-align: right;
+
+    .author-avatar {
+      display: inline-block;
+      width: 50px;
+      height: 50px;
+      border-radius: 50%;
+      fill: currentColor;
+      color: var(--grey-ddd);
+    }
+    .author-info {
+      .author-name {
+        display: block;
+        margin: 10px 0 4px;
+        font-family: 'PT Sans', sans-serif;
+        font-size: 16px;
+        line-height: 20px;
+        font-weight: 700;
+        color: var(--grey-222);
+        text-transform: uppercase;
+      }
+      .author-title {
+        display: block;
+        font-size: 12px;
+        line-height: 16px;
+        font-style: italic;
+        color: var(--grey-aaa);
+      }
+    }
+
+    .post-meta {
+      position: relative;
+      margin: 15px 0 0;
+      padding: 15px 0 0;
+      line-height: 20px;
+      font-size: 14px;
+      color: var(--grey-aaa);
+
+    &:before {
+      position: absolute;
+      top: 0;
+      right: 0;
+      width: 30px;
+      height: 1px;
+      background: var(--grey-ddd);
+      content: "";
+    }
+
+    .post-date {
+      position: relative;
+      margin: 0 5px 0 0;
+      padding: 0 10px 0 0;
+
+      &:after {
+        position: absolute;
+        top: 50%;
+        right: 0;
+        width: 3px;
+        height: 3px;
+        border-radius: 50%;
+        background: var(--grey-ccc);
+        content: "";
+      }
+    }
+    .post-categories {
+      position: relative;
+      @include flexbox();
+      @include justify-content(flex-end);
+      gap: 5px;
+      margin: 8px 0 0;
+
+      a {
+        color: var(--main-color);
+        text-decoration: none;
+
+        &:hover {
+          text-decoration: underline;
+        }
+      }
+    }
+  }
+}
+
+.post-content {
+  abbr {
+    border-bottom: 1px dotted var(--grey-555);
+    text-decoration: none;
+    cursor: help;
+  }
+  code, kbd, pre {
+    margin: 0;
+    font-family: monospace;
+    word-wrap: break-word;
+    word-break: break-word;
+    white-space: pre-wrap;
+  }
+  address, cite, var {
+    font-style: italic;
+  }
+  blockquote {
+    margin: 40px 0;
+    padding: 0 0 0 20px;
+    border-left: 3px solid var(--grey-555);
+    color: var(--grey-222);
+    font-weight: 700;
+  }
+  em, strong {
+    color: var(--grey-222);
+  }
+
+  h1, h2, h3, h4, h5, h6 {
+    font-family: 'PT Sans', sans-serif;
+    margin: 40px 0 25px 0;
+    color: var(--grey-222);
+  }
+  h4, h5, h6 {
+    margin: 25px 0;
+  }
+  h1 {
+    font-size: 28px;
+  }
+  h2 {
+    font-size: 26px;
+  }
+  h3 {
+    font-size: 22px;
+  }
+  h4 {
+    font-size: 20px;
+  }
+  h5 {
+    font-size: 18px;
+  }
+  h6 {
+    font-size: 16px;
+  }
+
+  a {
+    color: var(--main-color);
+
+    &:hover {
+      text-decoration: none;
+    }
+  }
+  img {
+    display: block;
+    max-width: 100%;
+    height: auto;
+  }
+
+  ul {
+    list-style-type: disc;
+    list-style-position: inside;
+  }
+
+  ul, ol {
+    margin: 15px 0;
+    padding: 0 0 0 20px;
+
+    ul, ol {
+      padding: 0 0 0 20px;
+    }
+    li {
+      margin: 5px 0;
+
+      & > code {
+        font-size: 14px;
+        padding: 3px 6px;
+        margin: 0 4px;
+        background: var(--grey-fa);
+        border: 1px solid var(--grey-ccc);
+      }
+    }
+  }
+
+  dl {
+    margin: 40px 0;
+
+    dt {
+      margin: 10px 0 0;
+      font-weight: 700;
+    }
+    dd {
+      margin: 5px 0;
+
+      & > code {
+        font-size: 14px;
+        padding: 3px 6px;
+        margin: 0 4px;
+        background: var(--grey-fa);
+        border: 1px solid var(--grey-ccc);
+      }
+    }
+  }
+    
+  p {
+    margin: 15px 0;
+
+    & > code {
+      font-size: 14px;
+      padding: 3px 6px;
+      margin: 0 4px;
+      background: var(--grey-fa);
+      border: 1px solid var(--grey-ccc);
+    }
+  }
+
+  .alignleft {
+    float: left;
+    margin: 20px 30px 10px 0;
+  }
+  .alignright {
+    float: right;
+    margin: 20px 0 10px 20px;
+  }
+  .aligncenter {
+    clear: both;
+    margin: 0 auto 20px;
+  }
+
+  figcaption {
+    font-size: 13px;
+    font-style: italic;
+    padding-top: 10px;
+  }
+
+  .iframe-wrapper {
+    position: relative;
+    padding-top: 56.25%;
+
+    & > iframe {
+      position: absolute;
+      top: 0;
+      left: 0;
+      width: 100%;
+      height: 100%;
+    }
+  }
+
+  .read-more-button {
+    font-size: 16px;
+    color: var(--grey-555);
+  }
+}
+
+.post-footer {
+  @include flexbox();
+  @include justify-content(space-between);
+  @include align-items(flex-start);
+  gap: 0 20px;
+  margin: 50px 0 0;
+
+  .post-tags {
+    @include flexbox();
+    @include flex-flow(row wrap);
+    @include flex(9, 1, auto);
+    gap: 0 20px;
+    list-style: none;
+    margin: 0;
+    padding: 0;
+
+    li {
+      a {
+        font-size: 14px;
+        font-family: 'PT Sans', sans-serif;
+        color: var(--grey-ccc);
+        text-decoration: none;
+        @include transition(all .15s ease);
+        &:hover {
+          color: var(--grey-555);
+        }
+      }
+    }
+  }
+  .post-share {
+    position: relative;
+    @include flex(0, 0, auto);
+    border: 1px solid var(--grey-ddd);
+    overflow: hidden; 
+
+    &:hover {
+      & > span {
+        margin-left: -100%;
+      }
+      & > ul {
+        left: 0;
+      }
+    }
+    span {
+      display: block;
+      width: 100%;
+      padding: 0 15px;
+      font-family: 'PT Sans', sans-serif;
+      font-size: 12px;
+      text-transform: uppercase;
+      text-align: center;
+      letter-spacing: .1em;
+      color: var(--grey-aaa);
+      cursor: pointer;
+      @include transition(margin .2s ease);
+    }
+    ul {
+      position: absolute;
+      top: 0;
+      left: 100%;
+      width: 100%;
+      height: 100%;
+      @include flexbox();
+      list-style: none;
+      margin: 0;
+      padding: 0;
+      @include transition(left .2s ease);
+
+      li {
+        @include flex(1, 0, auto);
+        cursor: pointer;
+
+        &:last-child {
+          border-left: 1px solid var(--grey-ddd);
+        }
+        a {
+          @include flexbox();
+          @include align-items();
+          @include justify-content();
+          height: 100%;
+          color: var(--grey-ccc);
+            &:hover {
+              background: var(--grey-eee);
+            }
+            svg {
+              fill: currentColor;
+            }
+          }
+        }
+      }
+    }
+  }
+    
+  .post-comments {
+    position: relative;
+    margin: 40px 0 0;
+    padding: 20px 0 0;
+    border-top: 1px solid var(--grey-ddd);
+  }
+}
+
+
+@media screen and (max-width: 960px) {
+  .post { 
+    .post-title {
+      margin: 0 0 15px;
+    }
+    .post-author {
+      @include flexbox();
+      @include align-items();
+      @include flex-flow(row wrap);
+      gap: 15px;
+      position: static;
+      width: 100%;
+      margin: 0 0 20px;
+      text-align: left;
+      .author-avatar {
+        width: 36px;
+        height: 36px;
+      }
+      .author-info {
+        .author-name {
+          margin: 0;
+          color: var(--grey-555);
+          text-transform: initial;
+        }
+        .author-title { display: none; }
+      }
+      .post-meta {
+        @include flexbox();
+        @include flex-flow(row wrap);
+        margin: 0;
+        margin-left: auto;
+        padding: 0;
+
+        &:before {
+          content: none;
+        }
+        .post-categories {
+          margin: 0 0 0 5px;
+          padding: 0 0 0 10px;
+
+          &:before {
+            position: absolute;
+            top: 50%;
+            left: 0;
+            width: 3px;
+            height: 3px;
+            border-radius: 50%;
+            background: var(--grey-ccc);
+            content: "";
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/assets/_sass/main.scss b/assets/_sass/main.scss
new file mode 100644
index 0000000..a20dba4
--- /dev/null
+++ b/assets/_sass/main.scss
@@ -0,0 +1,21 @@
+@import 'base/vars';
+@import 'base/mixins';
+@import 'base/reset';
+@import 'base/syntax';
+@import 'base/animations';
+@import 'base/helpers';
+
+//Layout
+@import 'layout';
+
+//Pages
+@import 'pages/fourofour';
+
+//Components
+@import 'components/post';
+@import 'components/page';
+@import 'components/pagination';
+
+//Partials
+@import 'partials/header-separator';
+@import 'partials/burger-menu';
diff --git a/assets/_sass/pages/_fourofour.scss b/assets/_sass/pages/_fourofour.scss
new file mode 100644
index 0000000..5257ff1
--- /dev/null
+++ b/assets/_sass/pages/_fourofour.scss
@@ -0,0 +1,9 @@
+.page-not-found {
+  text-align: center;
+
+  svg {
+    fill: currentColor;
+    color: var(--grey-ddd);
+    margin: 0 auto;
+  }
+}
diff --git a/assets/_sass/partials/_burger-menu.scss b/assets/_sass/partials/_burger-menu.scss
new file mode 100644
index 0000000..2bea84c
--- /dev/null
+++ b/assets/_sass/partials/_burger-menu.scss
@@ -0,0 +1,68 @@
+.toggleBurger {
+  display: none;
+
+  &:checked {
+    & ~ .site-navigation {
+      @include translate(0, 0);
+    }
+    & ~ .toggleBurgerWrapper {
+      span {
+        background: transparent;
+        &:before {
+          top: 0;
+          @include rotate(135deg);
+        }
+        &:after {
+          top: 0;
+          @include rotate(-135deg);
+        }
+      }
+    }
+  }
+}
+
+.toggleBurgerWrapper {
+  display: none;
+  position: fixed;
+  top: 20px;
+  left: 20px;
+  width: 25px;
+  height: 30px;
+  cursor: pointer;
+  z-index: 100;
+  @include no-select();
+
+  span {
+    position: absolute;
+    top: 50%;
+    height: 2px;
+    width: 100%;
+    background: var(--grey-222);
+
+    @include transition(all .3s ease);
+    @include translate(0, -50%);
+
+    &:before,
+    &:after {
+      position: absolute;
+      height: 2px;
+      width: 100%;
+      background: var(--grey-222);
+      content: "";
+
+      @include transition(all .3s ease);
+    }
+    &:before {
+      top: -6px;
+    }
+    &:after {
+      top: 6px;
+    }
+  }
+}
+
+@media screen and (max-width: 800px) {
+  .toggleBurgerWrapper {
+    display: block;
+  }
+}
diff --git a/assets/_sass/partials/_header-separator.scss b/assets/_sass/partials/_header-separator.scss
new file mode 100644
index 0000000..4c264df
--- /dev/null
+++ b/assets/_sass/partials/_header-separator.scss
@@ -0,0 +1,27 @@
+.header-content-separator {
+  position: relative;
+  margin: 40px auto;
+  width: 4px;
+  height: 4px;
+  border-radius: 50%;
+  background: var(--grey-ccc);
+
+  &:before {
+    position: absolute;
+    left: -8px;
+    width: 4px;
+    height: 4px;
+    border-radius: 50%;
+    background: var(--grey-ccc);
+    content: "";
+  }
+  &:after {
+    position: absolute;
+    left: 8px;
+    width: 4px;
+    height: 4px;
+    border-radius: 50%;
+    background: var(--grey-ccc);
+    content: "";
+  }
+}
-- 
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