:root {
  --fg-color: black;
  --bg-color: white;
  --fg-selection-color: white;
  --bg-selection-color: #338fff;
  --border-color: black;
  --blockquote-color: #6a737d;
  --blockquote-border-color: #dfe2e5;
  --header-color: black;
  --link-tab-fg-color: white;
  --link-tab-bg-color: #303030;
  --link-tab-bg-hover-color: #004080;
  --strong-color: black;
  --a-color: #004080;
  --a-hover-color: #004080;
  --code-bg-color: #e2e4e6;
  --pre-bg-color: #f6f8fa;
  --em-color: black;
  --td-border-color: #dfe2e5;
  --tr-bg-color: #fff;
  --tr-border-color: #c6cbd1;
  --alternating-row-color: #f6f8fa;
}

/* Custom scrollbar style */

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #d8d8d8;
}

::-webkit-scrollbar-thumb {
  background: #888;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* Custom mouse text selection colors */

::-moz-selection {
  color: var(--fg-selection-color);
  background: var(--bg-selection-color);
}

::selection {
  color: var(--fg-selection-color);
  background: var(--bg-selection-color);
}

/* Global */

body {
  min-height: calc(100vh - 16px);
  color: var(--fg-color);
  background-color: var(--bg-color);
  border-color: var(--border-color);
}

body, td, th {
  font: 18px 'Open Sans', sans-serif;
  line-height: 1.5em;
}

h1, h2, h3, h4, h5, h6, b {
  color: var(--header-color);
  border-color: var(--border-color);
}

h1 {
  font-size: 1.7em;
  line-height: 1.2em;
  margin-block-end: 0.5em;
}

h1 ~ h1 {
  margin-top: 0;
}

h2 {
  font-size: 1.35em;
  padding-bottom: 0.25em;
  border-bottom: 2px solid var(--border-color);
}

h3 {
  text-decoration: underline;
}

img {
  max-width: 100%;
  box-sizing: border-box;
  image-rendering: crisp-edges;
}

.pixelated-render {
  image-rendering: pixelated;
}

img, hr {
  border: 1px solid var(--border-color);
}

strong {
  color: var(--strong-color);
}

a {
  text-decoration: none;
}

a * {
  color: var(--fg-color);
}

body > :not(nav) a, a strong {
  color: var(--a-color);
  border-bottom: 1px dashed;
}

body > :not(nav) a:hover, a strong:hover {
  color: var(--a-hover-color);
}

i, em {
  color: var(--em-color);
}

article {
  max-width: 52.7em; /* Equivalent to 50em on 19px font-size */
  min-height: calc(100vh - 228px);
  overflow: auto;
}

ul, ol {
  padding-inline-start: 30px;
}

table code {
  white-space: normal;
}

/* Show link icon next to headings */

h2, h3, h4, h5, h6, .about-header {
  display: inline-block;
  margin-block-start: 0.4em;
  margin-block-end: 0.16em;
  line-height: 1.25em;
}

.about-header:first-child {
  margin-block-start: 0.83em;
}

h2 + p, h3 + p, h4 + p, h5 + p, h6 + p, .about-p {
  display: inline;
}

h1 + p a, h2 + p a, h3 + p a, h4 + p a, h5 + p a, h6 + p a, .about-p a {
  border: none !important;
}

  /* This selects the link images, next to headings */
h2 + p img, h3 + p img, h4 + p img, h5 + p img, h6 + p img, .about-p img {
  height: 1.3em;
  border: none;
  vertical-align: text-top;
  /* Since link images are made for dark mode, and have white-ish foreground,
   * this filter makes them black (when in light mode)
   */
  filter: invert(1) brightness(0);
}

/* Main elements: article, header, footer */

.centered, article {
  margin-left: auto;
  margin-right: auto;
}

.header, .footer {
  text-align: center;
  font-family: Arial;
  line-height: 49px;
}

.header {
  font-size: 23px;
  border-bottom: 5px solid var(--link-tab-bg-color);
  padding-bottom: 3px;
}

.footer {
  border-top: 5px solid var(--link-tab-bg-color);
  padding-top: 3px;
  overflow-x: hidden;
}

/* Header and footer rectangles (tabs) */

.link-tab, code {
  white-space: nowrap;
}

.link-tab {
  font-weight: normal;
  padding: 10px;
  color: var(--link-tab-fg-color);
  background-color: var(--link-tab-bg-color);
}

.link-tab:hover {
  background-color: var(--link-tab-bg-hover-color);
}

/* Index page styling */

#index-contents-img {
  border: none;
}

@media screen and (min-width: 610px) {
  #index-contents {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  #index-contents-text {
    margin-left: 15px; 
  }

  #index-contents-img, #index-contents-text {
    max-width: 49%;
  }
}

#index-list {
  margin-block-end: calc(1em + 10px);
}

/* The following CSS is a modified version of sindresorhus's github-markdown-css repo: https://github.com/sindresorhus/github-markdown-css */

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

code {
  padding: .2em .4em;
  margin: 0;
  font-size: 85%;
  background-color: var(--code-bg-color);
  border-radius: 3px;
}

pre code {
  display: inline;
  max-width: auto;
  padding: 0;
  margin: 0;
  overflow: visible;
  line-height: inherit;
  word-wrap: normal;
  background-color: var(--code-bg-color);
  border: 0;
}

pre > code {
  padding: 0;
  margin: 0;
  font-size: 100%;
  word-break: normal;
  white-space: pre;
  background-color: inherit;
  border: 0;
}

pre {
  padding: 16px;
  overflow: auto;
  font-size: 85%;
  line-height: 1.45;
  background-color: var(--pre-bg-color);
  border-radius: 3px;
  margin: 0;
  word-break: normal;
  word-wrap: normal;
}

article > table {
  line-height: 25px;
  border-spacing: 0;
  border-collapse: collapse;
  margin-top: 10px;
  margin-bottom: 10px;
  width: 100%;
  overflow: auto;
}

article > table:nth-child(5) td:first-child {
  width: 60%;
}

article > table td:nth-child(n+2) {
  line-height: 1.1em;
  padding: 0.3em;
  padding-top: 0.2em;
}

article > table code {
  font-size: 0.7em;
}

article > table th {
  font-weight: 600;
}

article > table td,
article > table th {
  padding: 6px 13px;
  border: 1px solid var(--td-border-color);
}

article > table tr {
  background-color: var(--tr-bg-color);
  border-top: 1px solid var(--tr-border-color);
}

article > table tr:nth-child(2n) {
  background-color: var(--alternating-row-color);
}

blockquote {
  margin: 0;
  margin-top: 0;
  margin-bottom: 16px;
  padding: 0 1em;
  color: var(--blockquote-color);
  border-left: .25em solid var(--blockquote-border-color);
}

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

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

/* Contact flex */

#contact-flex {
  display: flex;
  flex-wrap: wrap;
  overflow: hidden;
}

#contact-flex > div {
  flex: 1;
}

.contact-card-title, .contact-card-content {
  background-color: var(--alternating-row-color);
  padding: 0.7rem;
  line-height: 1.5rem;
}

.contact-card-title *, .contact-card-content * {
  background-color: inherit;
  border: none;
}

.contact-card-title {
  font-size: 1.2em;
  margin: 0em 0.4em;
  color: var(--header-color);
}

.contact-card-content {
  font-size: 0.9em;
  margin: 1em 1.3em;
  box-sizing: border-box;
}

/* Syntax highlighting (colours are inspired from gruvbox) */

.cst, .chr { /* Constant, Chars */
  color: #d787af;
}

.com { /* Comment */
  color: #8a8a8a;
}

.kwd { /* Keyword */
  color: #d75f5f;
}

.kwD { /* Second keyword color */
  color: #87af87;
}

.kWD { /* Third keyword color */
  color: #ff8700;
}

.typ { /* Type */
  color: #ffaf00;
}

.cls { /* Class */
  color: #87afaf;
}

.fnc, .str { /* Function names, Strings */
  color: #afaf00;
}

/* Script specific styling */

.btn:hover {
  cursor: pointer;
}

.clicked-image {
  position: absolute;
  width: 100vw;
  height: 100vh;
  max-width: none !important;
  max-height: none !important;
  border: none;
  object-fit: contain;
  left: 0;
  top: 0;
  padding: 1em;
  z-index: 2;
  background-color: var(--bg-color);
}

.body-on-clicked-image {
  overflow: hidden;
}

#scrollBtn {
  font-size: 1rem;
  position: fixed;
  right: 1em;
  bottom: 1em;
  z-index: 1;
  border: 1px solid;
  transition-duration: 0.5s;
  padding: 0.3em;
}

#changeThemeBtn {
  vertical-align: middle;
  margin-top: -0.2em;
  border: none !important;
}

#scrollBtn, #changeThemeBtn {
  display: none;
}

/* OpenSans font */

@font-face {
  font-family: 'Open Sans';
  src: url(/fonts/open-sans/OpenSans-Regular.ttf);
  font-weight: normal;
}

@font-face {
  font-family: 'Open Sans';
  src: url(/fonts/open-sans/OpenSans-Bold.ttf);
  font-weight: bold;
}

@font-face {
  font-family: 'Open Sans';
  src: url(/fonts/open-sans/OpenSans-ExtraBold.ttf);
  font-weight: 800;
}

@font-face {
  font-family: 'Open Sans';
  src: url(/fonts/open-sans/OpenSans-Italic.ttf);
  font-weight: normal;
  font-style: italic;
}

@font-face {
  font-family: 'Open Sans';
  src: url(/fonts/open-sans/OpenSans-BoldItalic.ttf);
  font-weight: bold;
  font-style: italic;
}

@font-face {
  font-family: 'Open Sans';
  src: url(/fonts/open-sans/OpenSans-ExtraBoldItalic.ttf);
  font-weight: 800;
  font-style: italic;
}

@font-face {
  font-family: 'Open Sans';
  src: url(/fonts/open-sans/OpenSans-Semibold.ttf);
  font-weight: 600;
}

@font-face {
  font-family: 'Open Sans';
  src: url(/fonts/open-sans/OpenSans-SemiboldItalic.ttf);
  font-weight: 600;
  font-style: italic;
}