/* -- Normalize ------------------------------------------------------------ */

/* See https://github.com/necolas/normalize.css/blob/master/normalize.css */

html {
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
}

pre,
code,
kbd,
samp {
  font-family: monospace, monospace;
  font-size: 1em;
}

b,
strong {
  font-weight: bolder;
}

sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

img {
  border-style: none;
}

/* -- Box Model ------------------------------------------------------------ */

*,
:before,
:after {
  box-sizing: border-box;
}

/* -- Elements ------------------------------------------------------------- */

/* Body */

body {
  background-color: #f4f3f2;
  color: #1e160c;
}

/* Selections */

::selection {
  background-color: #ffef7d;
}

::-moz-selection {
  background-color: #ffef7d;
}

/* Code */

pre,
code,
kbd,
samp {
  padding: 3px 2px 2px;
  background-color: #fffdfa;
}

pre {
  margin: 0;
  padding: 0.5rem 1rem;
  border: 1px solid #9b938b;
  border-left-width: 0;
  border-right-width: 0;
}

pre > code,
pre > code.hljs {
  padding: 0;
  background-color: transparent;
}

/* Blockquote */

blockquote {
  margin: 1rem 1rem;
  padding: 1rem;
  background-color: #e7e5e2;
  border-left: 4px solid #9b938b;
}

blockquote > :first-child {
  margin-top: 0;
}

blockquote > :last-child {
  margin-bottom: 0;
}

/* Kbd */

kbd {
  background-color: initial;
}

kbd kbd {
  margin: 0;
  padding: .15em .3em;
  color: #333;
  background-color: #fafafa;
  border: 1px solid #ccc;
  border-radius: 3px;
  box-shadow: 0 2px 1px #aaa;
  position: relative;
  bottom: 2px;
}

/* Lists */

ul.unstyled,
ol.unstyled {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

ul.inline,
ol.inline {
  margin: 0;
  padding: 0;
}

ul.inline li,
ol.inline li {
  display: inline-block;
}

/* -- Typography ----------------------------------------------------------- */

/* Faces */

body,
header,
h1,
h2,
h3,
h4,
h5,
h6 {
  /* See:
     https://smashingmagazine.com/2015/11/using-system-ui-fonts-practical-guide
     https://css-tricks.com/snippets/css/system-font-stack/
   */
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
}

pre,
code,
kbd,
samp {
  font-family: Menlo, Consolas, "DejaVu Sans Mono", "Andale Mono", monospace;
}

h1 {
  font-style: italic;
}

blockquote {
  font-style: italic;
}

/* Sizes */

body {
  line-height: 1.5rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.5em;
}

pre,
code,
kbd,
samp {
  font-size: .9em;
}

/* Wrapping */

pre {
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* -- Links ---------------------------------------------------------------- */

a:link,
a:visited {
  color: #c12b2b;
  text-decoration: none;
}

a:hover,
a:active,
a:focus {
  background-color: #ffef7d;
  border-bottom: 2px solid #c12b2b;
}

/* -- Components ----------------------------------------------------------- */

/* Tags */

.tag {
  display: inline-block;
  margin: 0.25rem;
  padding: 0 0.5em;
  color: #333;
  background-color: #fffdfa;
  border-top: 1px solid transparent;
  border-bottom: 2px solid transparent;
}

.tag::before {
  content: '#';
  color: #aaa;
}

/* GPG Fingerprint */

.fingerprint > span {
  display: inline-block;
  padding-left: .25em;
  padding-right: .25em;
  background-color: #fffdfa;
}

.fingerprint > span > span {
  margin-left: .25em;
  margin-right: .25em;
}

/* Social Link */

a.social-link {
  line-height: 0;
  border-radius: 1.5em;
  border: 2px solid #fff;
}

a.social-link img {
  height: 1.25em;
  width: 1.25em;
}

/* -- Sections ------------------------------------------------------------- */

/* Main Nav */

body > nav {
  padding: .5rem .25rem .25rem;
  background-color: #fff;
  color: #1e160c;
  border-bottom: 1px solid #c12b2b;
}

body > nav > .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 46rem;
}

body > nav ul {
  display: flex;
  flex-grow: 1;
  justify-content: space-around;
  align-items: center;
}

body > nav ul:first-child {
  flex-grow: 99;
  justify-content: flex-start;
  font-weight: bold;
}

body > nav a:link,
body > nav a:visited {
  display: inline-block;
  margin: 0 .125rem .25rem;
  padding: .5rem;
  border-bottom: 2px solid transparent;
}

body > nav a:hover,
body > nav a:focus,
body > nav a:active {
  border-bottom: 2px solid #c12b2b;
}

body > nav .active a:link,
body > nav .active a:visited {
  color: #c12b2b;
  border-bottom: 2px solid #c12b2b;
}

/* -- Pages ---------------------------------------------------------------- */

/* Homepage */

section.homepage {
}

main > article,
main > section {
  margin: 1rem auto;
  padding: 1rem;
  max-width: 46rem;
}

main > article header,
main > section header {
  text-align: center;
  margin-top: 3rem;
  margin-bottom: 4rem;
}

main > article header .dateline,
main > section header .dateline {
  color: #888;
  margin-bottom: 0.25rem;
}

main > article header *,
main > section header * {
  margin: 0;
}

article figure {
  margin: 0;
  text-align: center;
}

article figure img {
  max-width: 100%;
}

article figure a:hover,
article figure a:focus,
article figure a:active {
  background-color: transparent;
  border: none;
}

ul.sectionnav {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: stretch;
  margin: 0 auto 3rem;
  padding: 0;
  max-width: 46rem;
  list-style-type: none;
}

ul.sectionnav li {
  flex-grow: 1;
  flex-basis: 0;
  margin: 0.5rem;
}

ul.sectionnav a {
  display: block;
  position: relative;
  overflow: hidden;
  font-weight: bold;
  font-size: 1.1rem;
  padding: 1rem 1rem 2.5rem;
  height: 100%;
  min-width: 10rem;
  text-align: center;
  box-shadow: 1px 1px 2px rgba(0, 0, 0, .25);
  background-color: white;
  background-image: linear-gradient(to right, #c12b2b 50%, #fff 50%);
  background-size: 200% 100%;
  transition: background-position 0.5s, color 0.5s;
}

ul.sectionnav a::before {
  position: absolute;
  bottom: 0.5rem;
  color: rgba(0, 0, 0, .2);
  font-style: italic;
  font-weight: bold;
  font-size: 1.25rem;
}

ul.sectionnav a.prev::before {
  content: "Previous";
  left: 5%;
}

ul.sectionnav a.next::before {
  content: "Next";
  right: 5%;
}

ul.sectionnav a.prev {
  text-align: left;
  border-left: 3px solid #c12b2b;
  background-position: 100% 0;
}

ul.sectionnav a.next {
  text-align: right;
  border-right: 3px solid #c12b2b;
  background-position: -100% 0;
}

ul.sectionnav a:hover {
  color: #fff;
  background-color: #c12b2b;
  border-bottom: none;
}

ul.sectionnav a.prev:hover,
ul.sectionnav a.next:hover {
  background-position: 0 0;
}