@font-face {
  font-family: "Roboto";
  font-style: normal;
  font-weight: 300;
  src: local("Roboto Light"), local("Roboto-Light"), url(https://fonts.gstatic.com/s/roboto/v18/KFOlCnqEu92Fr1MmSU5fBBc4.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  font-display: swap;
}
@font-face {
  font-family: "Roboto";
  font-style: italic;
  font-weight: 300;
  src: local("Roboto Light Italic"), local("Roboto-LightItalic"), url(https://fonts.gstatic.com/s/roboto/v18/KFOjCnqEu92Fr1Mu51TjASc6CsQ.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  font-display: swap;
}
@font-face {
  font-family: "Roboto";
  font-style: normal;
  font-weight: 500;
  src: local("Roboto Medium"), local("Roboto-Medium"), url(https://fonts.gstatic.com/s/roboto/v18/KFOlCnqEu92Fr1MmEU9fBBc4.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  font-display: swap;
}
@font-face {
  font-family: "Roboto Mono";
  font-style: normal;
  font-weight: 300;
  src: local("Roboto Mono Light"), local("RobotoMono-Light"), url(https://fonts.gstatic.com/s/robotomono/v5/L0xkDF4xlVMF-BfR8bXMIjDgiWqxf78.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  font-display: swap;
}
@font-face {
  font-family: "Roboto Mono";
  font-style: italic;
  font-weight: 300;
  src: local("Roboto Mono Light Italic"), local("RobotoMono-LightItalic"), url(https://fonts.gstatic.com/s/robotomono/v5/L0xmDF4xlVMF-BfR8bXMIjhOk9a0T72jBg.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  font-display: swap;
}
@font-face {
  font-family: "Roboto Mono";
  font-style: normal;
  font-weight: 500;
  src: local("Roboto Mono Medium"), local("RobotoMono-Medium"), url(https://fonts.gstatic.com/s/robotomono/v5/L0xkDF4xlVMF-BfR8bXMIjC4iGqxf78.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  font-display: swap;
}
:root {
  --fore-color: #212121;
  --back-color: #fff;
  --card-page-back-color: #eee;
  --border-color: #eee;
  --universal-margin: 0.5rem;
  --universal-padding: 0.5rem;
  --universal-border-radius: 0.125rem;
  --a-link-color: #0277bd;
  --a-visited-color: #01579b;
  --code-fore-color: #8e24aa;
  --code-back-color: #f0f0f0;
  --code-selected-color: #37474f;
  --pre-fore-color: #e57373;
  --pre-back-color: #263238;
  --token-color-a: #7f99a5;
  --token-color-b: #bdbdbd;
  --token-color-c: #64b5f6;
  --token-color-d: #ff8f00;
  --token-color-e: #c5e1a5;
  --token-color-f: #ce93d8;
  --token-color-g: #26c6da;
  --token-color-h: #e57373;
  --collapse-color: #607d8b;
  --copy-button-color: #1e88e5;
  --copy-button-hover-color: #2196f3;
  --scrolltop-button-color: #26a69a;
  --scrolltop-button-hover-color: #4db6ac;
  --beginner-color: #7cb342;
  --intermediate-color: #ffb300;
  --advanced-color: #e53935;
  --header-fore-color: #fff;
  --header-back-color: #202124;
  --nav-fore-color: #f0f0f0;
  --nav-back-color: #202124;
  --footer-fore-color: #616161;
  --footer-back-color: #e0e0e0;
  --nav-link-fore-color: #e0e0e0;
  --nav-link-border-color: #455a64;
  --nav-link-hover-color: #2b2c30;
  --search-fore-color: #fafafa;
  --search-back-color: #111;
  --search-border-color: #9e9e9e;
  --search-hover-border-color: #26a69a;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

html, * {
  font-family: Roboto, Helvetica, sans-serif;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

* {
  font-size: 1rem;
  font-weight: 300;
}

a, b, del, em, i, ins, q, span, strong, u {
  font-size: 1em;
}

body {
  margin: 0;
  color: var(--fore-color);
  background: var(--back-color);
  overflow-x: hidden;
}
body.card-page {
  background: var(--card-page-back-color);
}

details {
  display: block;
}

summary {
  display: list-item;
}

abbr[title] {
  border-bottom: none;
  text-decoration: underline dotted;
}

input {
  overflow: visible;
}

[type=number]::-webkit-inner-spin-button, [type=number]::-webkit-outer-spin-button {
  height: auto;
}

[type=search] {
  -webkit-appearance: textfield;
  outline-offset: -2px;
}

[type=search]::-webkit-search-cancel-button, [type=search]::-webkit-search-decoration {
  -webkit-appearance: none;
}

img {
  max-width: 100%;
  height: auto;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  margin: calc(1.5 * var(--universal-margin)) var(--universal-margin);
}

h1 {
  font-size: 6rem;
}

h2 {
  font-size: 3.75rem;
}

h3 {
  font-size: 3rem;
}

h4 {
  font-size: 2.125rem;
}

h5 {
  font-size: 1.5rem;
}

h6 {
  font-size: 1.25rem;
}

p {
  margin: var(--universal-margin);
}

ol, ul {
  margin: var(--universal-margin);
  padding-left: calc(2 * var(--universal-margin));
}

b, strong {
  font-weight: 500;
}

hr {
  box-sizing: content-box;
  border: 0;
  line-height: 1.25em;
  margin: var(--universal-margin);
  height: 0.0625rem;
  background: linear-gradient(to right, transparent, var(--border-color) 20%, var(--border-color) 80%, transparent);
}

code, kbd, pre {
  font-size: 0.875em;
}

code, kbd, pre, code *, pre *, kbd *, code[class*=language-], pre[class*=language-] {
  font-family: Roboto Mono, Menlo, Consolas, monospace;
}

sup, sub, code, kbd {
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

code {
  background: var(--code-back-color);
  color: var(--code-fore-color);
  padding: calc(var(--universal-padding) / 4) calc(var(--universal-padding) / 2);
  border-radius: var(--universal-border-radius);
}

/*  === Unused so far ===
kbd {
  background: var(--fore-color);
  color: var(--back-color);
  border-radius: var(--universal-border-radius);
  padding: calc(var(--universal-padding) / 4) calc(var(--universal-padding) / 2);
}
*/
pre {
  overflow: auto;
  background: var(--pre-back-color);
  color: var(--pre-fore-color);
  padding: calc(1.5 * var(--universal-padding));
  margin: var(--universal-margin);
  border: 0;
}

code[class*=language-], pre[class*=language-] {
  color: var(--pre-fore-color);
  text-align: left;
  white-space: pre;
  word-spacing: normal;
  word-break: normal;
  word-wrap: normal;
  line-height: 1.8;
  -moz-tab-size: 2;
  -o-tab-size: 2;
  tab-size: 2;
  -webkit-hypens: none;
  -moz-hyphens: none;
  -ms-hyphens: none;
  hyphens: none;
}

pre[class*=language-] {
  padding: calc(2 * var(--universal-padding));
  overflow: auto;
  margin: var(--universal-margin) 0;
  white-space: pre-wrap;
}

pre[class*=language-]::-moz-selection, pre[class*=language-] ::-moz-selection,
code[class*=language-]::-moz-selection, code[class*=language-] ::-moz-selection {
  background: var(--code-selected-color);
}

pre[class*=language-]::selection, pre[class*=language-] ::selection,
code[class*=language-]::selection, code[class*=language-] ::selection {
  background: var(--code-selected-color);
}

:not(pre) > code[class*=language-] {
  padding: 0.1em;
  border-radius: 0.3em;
  white-space: normal;
}

.namespace {
  opacity: 0.7;
}

.token.comment, .token.prolog, .token.doctype, .token.cdata {
  color: var(--token-color-a);
}
.token.punctuation {
  color: var(--token-color-b);
}
.token.property, .token.tag, .token.boolean, .token.constant, .token.symbol, .token.deleted, .token.function {
  color: var(--token-color-c);
}
.token.number, .token.class-name {
  color: var(--token-color-d);
}
.token.selector, .token.attr-name, .token.string, .token.char, .token.builtin, .token.inserted {
  color: var(--token-color-e);
}
.token.operator, .token.entity, .token.url, .token.atrule, .token.attr-value, .token.keyword, .token.interpolation-punctuation {
  color: var(--token-color-f);
}
.token.regex {
  color: var(--token-color-g);
}
.token.important, .token.variable {
  color: var(--token-color-h);
}
.token.italic, .token.comment {
  font-style: italic;
}
.token.important, .token.bold {
  font-weight: 500;
}
.token.entity {
  cursor: help;
}

.language-css .token.string, .style .token.string {
  color: var(--token-color-f);
}

a {
  text-decoration: none;
}
a:link {
  color: var(--a-link-color);
}
a:visited {
  color: var(--a-visited-color);
}
a:hover, a:focus {
  text-decoration: underline;
}

.github-corner:hover .octo-arm {
  animation: octocat-wave 560ms ease-in-out;
}

@keyframes octocat-wave {
  0%, 100% {
    transform: rotate(0);
  }
  20%, 60% {
    transform: rotate(-25deg);
  }
  40%, 80% {
    transform: rotate(10deg);
  }
}
@media (max-width: 500px) {
  .github-corner:hover .octo-arm {
    animation: none;
  }

  .github-corner .octo-arm {
    animation: octocat-wave 560ms ease-in-out;
  }
}
/*
blockquote {}
sup {}
sub {}
figure {}
figcaption {}
*/
.container {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-column-gap: calc(0.5 * var(--universal-margin));
}
.container.card-container {
  position: absolute;
  padding-top: 3.5rem;
  height: calc(100vh - 3.5rem);
}

.col-centered {
  grid-column: span 12;
  max-width: 100%;
}
@media screen and (min-width: 768px) {
  .col-centered {
    grid-column: 2/12;
  }
}
@media screen and (min-width: 1280px) {
  .col-centered {
    grid-column: 3/11;
  }
}

.col-quarter {
  grid-column: span 3;
}

.col-full-width {
  grid-column: span 12;
}

.flex-row {
  display: flex;
  flex: 0 1 auto;
  flex-flow: row wrap;
}
.flex-row .flex-item {
  flex: 0 0 auto;
  max-width: 50%;
  flex-basis: 50%;
}
@media screen and (min-width: 768px) {
  .flex-row .flex-item {
    max-width: 25%;
    flex-basis: 25%;
  }
}
@media screen and (min-width: 1280px) {
  .flex-row .flex-item {
    max-width: 100%;
    flex-grow: 1;
    flex-basis: 0;
  }
}

h2.category-name {
  text-align: center;
}

.card {
  overflow: hidden;
  position: relative;
  margin: var(--universal-margin);
  border-radius: calc(4 * var(--universal-border-radius));
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.12), 0 1px 5px 0 rgba(0, 0, 0, 0.2);
}
.card h4 {
  text-align: center;
  padding-bottom: calc(0.75 * var(--universal-padding));
  margin-bottom: calc(2 * var(--universal-margin));
  border-bottom: 0.0625rem solid var(--border-color);
  padding-top: 5rem;
  margin-top: -4.25rem;
}
.card.code-card {
  margin-top: calc(5 * var(--universal-margin));
  background: var(--pre-back-color);
}
.card.code-card .section.card-content {
  background: var(--back-color);
  padding: calc(1.5 * var(--universal-padding));
}
.card.code-card .collapse {
  display: block;
  font-size: 0.75rem;
  font-family: Roboto Mono, Menlo, Consolas, monospace;
  text-transform: uppercase;
  background: var(--pre-back-color);
  color: var(--collapse-color);
  padding: calc(1.5 * var(--universal-padding)) calc(1.5 * var(--universal-padding)) calc(2 * var(--universal-padding)) calc(2.25 * var(--universal-padding));
  margin-left: calc(1.5 * var(--universal-margin));
  cursor: pointer;
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23607D8B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-plus-square'%3E%3Crect x='3' y='3' width='18' height='18' rx='2' ry='2'%3E%3C/rect%3E%3Cline x1='12' y1='8' x2='12' y2='16'%3E%3C/line%3E%3Cline x1='8' y1='12' x2='16' y2='12'%3E%3C/line%3E%3C/svg%3E");
  background-position: 0.25rem 0.9375rem;
  background-repeat: no-repeat;
}
.card.code-card .collapse + pre.card-examples {
  margin-left: calc(1.5 * var(--universal-margin));
  position: absolute;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s ease;
}
.card.code-card .collapse.toggled {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23607D8B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-minus-square'%3E%3Crect x='3' y='3' width='18' height='18' rx='2' ry='2'%3E%3C/rect%3E%3Cline x1='8' y1='12' x2='16' y2='12'%3E%3C/line%3E%3C/svg%3E");
  padding-bottom: calc(0.125 * var(--universal-padding));
}
.card.code-card .collapse.toggled + pre.card-examples {
  position: relative;
  transform: scaleY(1);
}
.card.code-card pre.section.card-code {
  position: relative;
  margin-bottom: 0;
  padding-bottom: 0;
  padding-top: calc(3 * var(--universal-padding));
}
.card.code-card pre.section.card-examples {
  margin-top: 0;
  margin-bottom: 0;
  border-radius: 0 0 calc(4 * var(--universal-border-radius)) calc(4 * var(--universal-border-radius));
  padding-top: 0;
}
.card.code-card pre.section.card-examples:before {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: 0.5625rem;
  border-left: 0.0625rem solid var(--collapse-color);
  height: calc(100% - 18px);
}
.card.code-card .copy-button-container {
  position: relative;
  z-index: 2;
}
.card.code-card .copy-button-container .copy-button {
  background: var(--copy-button-color);
  box-sizing: border-box;
  position: absolute;
  top: -1.75rem;
  right: 0;
  margin: calc(2 * var(--universal-margin));
  padding: calc(2.5 * var(--universal-padding));
  border-radius: 50%;
  border: 0;
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.12), 0 1px 5px 0 rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  cursor: pointer;
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23f0f0f0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-clipboard'%3E%3Cpath d='M16 4h2a2 2 0 0 1 2 2v14a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2h2'%3E%3C/path%3E%3Crect x='8' y='2' width='8' height='4' rx='1' ry='1'%3E%3C/rect%3E%3C/svg%3E");
  background-position: center center;
  background-repeat: no-repeat;
}
.card.code-card .copy-button-container .copy-button:hover, .card.code-card .copy-button-container .copy-button:focus {
  background-color: var(--copy-button-hover-color);
  box-shadow: 0 3px 3px 0 rgba(0, 0, 0, 0.14), 0 1px 7px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -1px rgba(0, 0, 0, 0.2);
}
.card.code-card .copy-button-container .copy-button:before {
  background: var(--back-color);
  position: absolute;
  top: -0.25rem;
  right: -0.25rem;
  content: "";
  display: block;
  box-sizing: border-box;
  padding: calc(2.5 * var(--universal-padding));
  border-radius: 50%;
  border: 0.25rem solid var(--back-color);
  z-index: -1;
}
.card.code-card .corner {
  box-sizing: border-box;
  position: absolute;
  top: -0.5rem;
  right: -2.125rem;
  width: 4rem;
  height: 2rem;
  padding-top: 2rem;
  transform: rotate(45deg);
  text-align: center;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--back-color);
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.07), 0 3px 1px -2px rgba(0, 0, 0, 0.06), 0 1px 5px 0 rgba(0, 0, 0, 0.1);
}
.card.code-card .corner.beginner {
  background: var(--beginner-color);
}
.card.code-card .corner.intermediate {
  background: var(--intermediate-color);
}
.card.code-card .corner.advanced {
  background: var(--advanced-color);
}

.toast {
  position: fixed;
  bottom: calc(var(--universal-margin) * 2);
  margin-bottom: 0;
  font-size: 0.8125rem;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1111;
  color: var(--back-color);
  background: var(--fore-color);
  border-radius: calc(var(--universal-border-radius) * 16);
  padding: var(--universal-padding) calc(var(--universal-padding) * 2);
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.12), 0 1px 5px 0 rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

header {
  box-sizing: border-box;
  overflow: hidden;
  height: 3.5rem;
  position: fixed;
  width: 110%;
  top: 0;
  left: -5%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  z-index: 5;
  background: var(--header-back-color);
  transition: top 0.3s ease;
}
header h1.logo {
  position: relative;
  top: 0;
  margin-top: 0;
  font-size: 1.625rem;
  text-align: center;
}
header h1 a, header h1 a:link, header h1 a:visited {
  color: var(--header-fore-color);
}
header h1 a:hover, header h1 a:focus, header h1 a:link:hover, header h1 a:link:focus, header h1 a:visited:hover, header h1 a:visited:focus {
  text-decoration: none;
}
header h1 small {
  display: block;
  font-size: 0.875rem;
  color: var(--header-back-color);
  margin-top: 0.75rem;
}
header img {
  height: 3.5rem;
  padding: 0.375rem;
  box-sizing: border-box;
}
header #title {
  position: relative;
  top: -1.125rem;
}
@media screen and (max-width: 768px) {
  header #title {
    display: none;
  }
}

nav {
  position: fixed;
  top: 6.5rem;
  left: -320px;
  width: 320px;
  transition: left 0.3s ease;
  z-index: 1100;
  height: calc(100vh - 6.5rem);
  box-sizing: border-box;
  display: block;
  background: var(--nav-back-color);
  border: 0;
  overflow-y: auto;
}
@media screen and (max-width: 320px) {
  nav {
    width: 100%;
  }
}
@media screen and (min-width: 768px) {
  nav {
    width: 33vw;
    left: -33vw;
  }
}
@media screen and (min-width: 1280px) {
  nav {
    width: 25vw;
    left: -25vw;
  }
}
nav.col-nav {
  box-shadow: 0 8px 17px 2px rgba(0, 0, 0, 0.14), 0 3px 14px 2px rgba(0, 0, 0, 0.12), 0 5px 5px -3px rgba(0, 0, 0, 0.2);
  left: 0;
}
@media screen and (min-width: 768px) {
  nav.col-nav + main.col-centered, nav.col-nav + main.col-centered + footer.col-full-width {
    grid-column: 5/13;
  }
}
@media screen and (min-width: 1280px) {
  nav.col-nav + main.col-centered {
    grid-column: 4/12;
    padding-left: 8vw;
  }
  nav.col-nav + main.col-centered + footer.col-full-width {
    grid-column: 4/13;
  }
}
nav h4 {
  margin: 0;
  padding: calc(2.5 * var(--universal-padding)) calc(2 * var(--universal-padding)) calc(1 * var(--universal-padding)) calc(1 * var(--universal-padding));
  color: var(--nav-fore-color);
  font-size: 1.5rem;
}
nav h4.collapse {
  display: block;
  cursor: pointer;
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23f0f0f0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-chevron-down'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-position: right 0.5rem top 1.5rem;
  background-repeat: no-repeat;
}
nav h4.collapse + ul {
  position: absolute;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s ease;
}
nav h4.collapse.toggled {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23f0f0f0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-chevron-up'%3E%3Cpolyline points='18 15 12 9 6 15'%3E%3C/polyline%3E%3C/svg%3E");
  padding-bottom: calc(0.125 * var(--universal-padding));
}
nav h4.collapse.toggled + ul {
  position: relative;
  transform: scaleY(1);
}
nav h4 + h4 {
  border-top: 0.0625rem solid var(--nav-link-border-color);
}
nav h4 > a {
  display: block;
  line-height: 1;
}
nav h4 > a:hover, nav h4 > a:focus {
  text-decoration: none;
}
nav ul {
  width: 100%;
  margin-left: -0.75rem;
  background: var(--nav-back-color);
}
nav ul + h4 {
  border-top: 0.0625rem solid var(--nav-link-border-color);
}
nav li {
  margin: calc(0.5 * var(--universal-margin));
  margin-left: var(--universal-margin);
  margin-bottom: 0;
  border-left: 0.0625rem solid var(--nav-link-border-color);
}
nav li:hover {
  text-decoration: none;
  background: var(--nav-link-hover-color);
}
nav li + li {
  margin-top: 0;
}
nav a {
  display: block;
  padding: calc(2 * var(--universal-padding)) calc(1.5 * var(--universal-padding));
}
nav a:link, nav a:visited {
  color: var(--nav-link-fore-color);
}
nav button.social {
  width: 33.333%;
  margin: 0;
  border: 0;
  border-radius: 0;
  box-sizing: border-box;
  height: 4rem;
  background-position: center center;
  background-repeat: no-repeat;
  cursor: pointer;
}
nav button.social.fb {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='%23f0f0f0' stroke='%23f0f0f0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-facebook'%3E%3Cpath d='M18 2h-3a5 5 0 0 0-5 5v3H7v4h3v8h4v-8h3l1-4h-4V7a1 1 0 0 1 1-1h3z'%3E%3C/path%3E%3C/svg%3E");
  background-color: #1565c0;
}
nav button.social.instagram {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23f0f0f0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-instagram'%3E%3Crect x='2' y='2' width='20' height='20' rx='5' ry='5'%3E%3C/rect%3E%3Cpath d='M16 11.37A4 4 0 1 1 12.63 8 4 4 0 0 1 16 11.37z'%3E%3C/path%3E%3Cline x1='17.5' y1='6.5' x2='17.5' y2='6.5'%3E%3C/line%3E%3C/svg%3E");
  background-color: #ec407a;
}
nav button.social.twitter {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='%23f0f0f0' stroke='%23f0f0f0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-twitter'%3E%3Cpath d='M23 3a10.9 10.9 0 0 1-3.14 1.53 4.48 4.48 0 0 0-7.86 3v1A10.66 10.66 0 0 1 3 4s-4 9 5 13a11.64 11.64 0 0 1-7 2c9 5 20 0 20-11.5a4.5 4.5 0 0 0-.08-.83A7.72 7.72 0 0 0 23 3z'%3E%3C/path%3E%3C/svg%3E");
  background-color: #03a9f4;
}

[type=search] {
  z-index: 1000;
  position: fixed;
  top: 3.5rem;
  height: 3rem;
  left: -320px;
  width: 320px;
  color: var(--search-fore-color);
  background: var(--search-back-color);
  outline: none;
  box-sizing: border-box;
  border: none;
  border-bottom: 0.0625rem solid var(--search-border-color);
  margin-bottom: var(--universal-margin);
  padding: calc(2 * var(--universal-padding)) calc(1.5 * var(--universal-padding)) var(--universal-padding) calc(1.5 * var(--universal-padding));
  transition: all 0.3s ease;
}
@media screen and (max-width: 320px) {
  [type=search] {
    width: 100%;
  }
}
@media screen and (min-width: 768px) {
  [type=search] {
    width: 33vw;
    left: -33vw;
  }
}
@media screen and (min-width: 1280px) {
  [type=search] {
    width: 25vw;
    left: -25vw;
  }
}
[type=search].col-nav {
  box-shadow: 0 8px 17px 2px rgba(0, 0, 0, 0.14), 0 3px 14px 2px rgba(0, 0, 0, 0.12), 0 5px 5px -3px rgba(0, 0, 0, 0.2);
  left: 0;
}
@media screen and (min-width: 768px) {
  [type=search].col-nav + main.col-centered, [type=search].col-nav + main.col-centered + footer.col-full-width {
    grid-column: 5/13;
  }
}
@media screen and (min-width: 1280px) {
  [type=search].col-nav + main.col-centered {
    grid-column: 4/12;
    padding-left: 8vw;
  }
  [type=search].col-nav + main.col-centered + footer.col-full-width {
    grid-column: 4/13;
  }
}
[type=search]:hover, [type=search]:focus {
  border-bottom: 0.0625rem solid var(--search-hover-border-color);
}
[type=search]:focus {
  box-shadow: 0 8px 17px 2px rgba(0, 0, 0, 0.14), 0 3px 14px 2px rgba(0, 0, 0, 0.12), 0 5px 5px -3px rgba(0, 0, 0, 0.2), inset 0 -0.0625rem 0 0 var(--search-hover-border-color);
}

.menu-button {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  box-sizing: border-box;
  outline: none;
  height: 3.5rem;
  width: 3.5rem;
  border: 0;
  background: transparent;
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23fafafa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-more-horizontal'%3E%3Ccircle cx='12' cy='12' r='1'%3E%3C/circle%3E%3Ccircle cx='19' cy='12' r='1'%3E%3C/circle%3E%3Ccircle cx='5' cy='12' r='1'%3E%3C/circle%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 0.875rem 0.875rem;
  cursor: pointer;
  transition: all 0.3s ease;
}
.menu-button:hover {
  background-color: rgba(255, 255, 255, 0.08);
}
.menu-button.toggled {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23fafafa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-more-vertical'%3E%3Ccircle cx='12' cy='12' r='1'%3E%3C/circle%3E%3Ccircle cx='12' cy='5' r='1'%3E%3C/circle%3E%3Ccircle cx='12' cy='19' r='1'%3E%3C/circle%3E%3C/svg%3E");
}

footer {
  color: var(--footer-fore-color);
  background: var(--footer-back-color);
  padding-top: calc(2 * var(--universal-padding));
  padding-bottom: calc(3 * var(--universal-padding));
  margin-top: calc(6 * var(--universal-margin));
}
footer * {
  font-size: 0.875rem;
}
footer a, footer a:link, footer a:visited {
  color: var(--fore-color);
}

.scroll-to-top {
  position: fixed;
  bottom: 1rem;
  right: 1.375rem;
  box-sizing: border-box;
  z-index: 1100;
  height: 2.75rem;
  width: 2.75rem;
  border: 0;
  border-radius: 100%;
  background: var(--scrolltop-button-color);
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23f0f0f0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-arrow-up'%3E%3Cline x1='12' y1='19' x2='12' y2='5'%3E%3C/line%3E%3Cpolyline points='5 12 12 5 19 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center center;
  cursor: pointer;
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.12), 0 1px 5px 0 rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}
.scroll-to-top:hover, .scroll-to-top:focus {
  background-color: var(--scrolltop-button-hover-color);
  box-shadow: 0 3px 3px 0 rgba(0, 0, 0, 0.14), 0 1px 7px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -1px rgba(0, 0, 0, 0.2);
}

.card.contributor > .section.button {
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  display: block;
  transition: all 0.3s ease;
}
.card.contributor > .section.button:link, .card.contributor > .section.button:visited {
  color: var(--fore-color);
}
.card.contributor > .section.button:link:hover, .card.contributor > .section.button:visited:hover {
  color: var(--a-link-color);
  text-decoration: none;
}