/* normalize.css */
html {
  font-family: sans-serif;
  line-height: 1.15;
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
}
article,
aside,
footer,
header,
nav,
section {
  display: block;
}
h1 {
  font-size: 2em;
  margin: 0.67em 0;
}
figcaption,
figure,
main {
  display: block;
}
figure {
  margin: 1em 40px;
}
hr {
  box-sizing: content-box;
  height: 0;
  overflow: visible;
}
pre {
  font-family: monospace, monospace;
  font-size: 1em;
}
a {
  background-color: transparent;
  -webkit-text-decoration-skip: objects;
}
a:active,
a:hover {
  outline-width: 0;
}
abbr[title] {
  border-bottom: none;
  text-decoration: underline;
  text-decoration: underline dotted;
}
b,
strong {
  font-weight: inherit;
  font-weight: bolder;
}
code,
kbd,
samp {
  font-family: monospace, monospace;
  font-size: 1em;
}
dfn {
  font-style: italic;
}
mark {
  background-color: #ff0;
  color: #000;
}
small {
  font-size: 80%;
}
sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}
sub {
  bottom: -0.25em;
}
sup {
  top: -0.5em;
}
audio,
video {
  display: inline-block;
}
audio:not([controls]) {
  display: none;
  height: 0;
}
img {
  border-style: none;
}
svg:not(:root) {
  overflow: hidden;
}
button,
input,
optgroup,
select,
textarea {
  font-family: sans-serif;
  font-size: 100%;
  line-height: 1.15;
  margin: 0;
}
button,
input {
  overflow: visible;
}
button,
select {
  text-transform: none;
}
button,
html [type="button"],
[type="reset"],
[type="submit"] {
  -webkit-appearance: button;
}
button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  border-style: none;
  padding: 0;
}
button:-moz-focusring,
[type="button"]:-moz-focusring,
[type="reset"]:-moz-focusring,
[type="submit"]:-moz-focusring {
  outline: 1px dotted ButtonText;
}
fieldset {
  border: 1px solid silver;
  margin: 0 2px;
  padding: 0.35em 0.625em 0.75em;
}
legend {
  box-sizing: border-box;
  color: inherit;
  display: table;
  max-width: 100%;
  padding: 0;
  white-space: normal;
}
progress {
  display: inline-block;
  vertical-align: baseline;
}
textarea {
  overflow: auto;
}
[type="checkbox"],
[type="radio"] {
  box-sizing: border-box;
  padding: 0;
}
[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;
}
::-webkit-file-upload-button {
  -webkit-appearance: button;
  font: inherit;
}
details,
menu {
  display: block;
}
summary {
  display: list-item;
}
canvas {
  display: inline-block;
}
template {
  display: none;
}
[hidden] {
  display: none;
}

body {
  line-height: 1.5;
  font-size: 12px;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu,
    "Helvetica Neue", Arial, sans-serif;
}

a {
  color: #123;
  text-decoration: underline;
}
a:visited {
  color: #123;
}
a:hover {
  color: #42e;
}

/* Header & footer */

#header {
  font-size: 1.5em;
  position: relative;
  margin-bottom: 30px;
  border-bottom: 1px solid #fff;
  line-height: 70px;
}

#footer {
  font-size: 1.1em;
  color: #aeb7c1;
  width: 70%;
  margin-left: 30%;
  padding: 30px 0;
}

#header a {
  color: #123;
  text-decoration: none;
}
#header a:hover {
  color: #42e;
  border-bottom: none;
}

#footer a:link,
#footer a:visited {
  color: #aeb7c1;
}

#pts {
  display: inline-block;
  padding-left: 30px;
  padding-right: 0;
  font-weight: normal;
}
#pts a {
  display: inline-block;
  font-weight: bold;
}
#pts a > span {
  color: #42e;
  display: inline-block;
  padding: 0 2px;
}

#topmenu {
  position: absolute;
  top: 0;
  right: 30px;
  height: 100%;
  vertical-align: middle;
}

#topmenu > a {
  display: inline-block;
  vertical-align: middle;
  padding-left: 15px;
  height: 100%;
}

/* ---------- */

#menu {
  position: fixed;
  top: 105px;
  left: 0;
  width: 25%;
  max-width: 300px;
  font-size: 1em;
  counter-reset: c;
  padding-left: 40px;
  padding-bottom: 50px;
  line-height: 2.4;
}

#menu > ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
a:focus-visible,
button:focus-visible,
pre:focus-visible {
  outline: 2px solid #42e;
  outline-offset: 2px;
}

#menu li {
  list-style: none;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-size: 1.3em;
  font-weight: 400;
}

#menu li {
  /* border-top: 1px solid #f1f3f5; */
  clear: left;
}

#menu li:first-child {
  /* border-bottom: 1px solid #42e; */
}

#menu li:before {
  counter-increment: c;
  content: counter(c);
  color: #42e;
  display: block;
  float: left;
  text-align: left;
  padding-right: 10px;
  min-width: 20px;
}

#menu li a {
  color: #123;
  text-decoration: none;
  display: block;
}
#menu li a:visited {
  color: #123;
}
#menu li a:hover {
  color: #42e;
}

#post {
  position: relative;
  margin-left: 30%;
  width: 50%;
  min-width: 300px;
  max-width: 640px;
  padding: 0 0px 30px;
  color: #123;
  font-size: 1.3em;
  border-bottom: 2px solid #123;
  margin-bottom: 100px;
}

#post li {
  /* margin-bottom: 0.5em; */
}

#post img {
  max-width: 100%;
  width: 100%;
}

#post video {
  display: block;
  width: 100%;
  height: auto;
}

h1 {
  font-size: 4em;
  line-height: 1;
  margin: 50px 0 75px;
  font-weight: 500;
  color: #42e;
}
h2 {
  font-size: 2em;
}
h3 {
  font-size: 1.6em;
  margin-top: 50px;
  font-weight: 500;
}
h4 {
  font-size: 1.35em;
}
h5 {
  font-size: 0.8em;
  font-weight: normal;
  color: #90959c;
  margin-top: -0.8em;
  margin-bottom: 2.5em;
}

code {
  display: inline-block;
  font-size: 0.9em;
}

p code,
h5 code,
li code {
  font-size: 1em;
  color: #60636f;
  font-style: normal;
  font-size: 0.85em;
}

em > code {
  background: #fff93a;
}

a > code {
  background: #f1f3fa;
  border: 1px solid #e2e6ef;
  padding: 0 5px;
}

a:hover > code {
  background: #0ca;
  border-color: #0ca;
  color: #fff;
}

#toc {
  position: fixed;
  top: 0px;
  left: 0;
  display: none;
  width: 100px;
  height: 80px;
  background: transparent;
  color: #42e;
  line-height: 78px;
  text-align: center;
  font-size: 4em;
}

#close {
  display: none;
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 80px;
  line-height: 78px;
  text-align: center;
  font-size: 3em;
  text-decoration: none;
  color: #fff;
}

#close:hover {
  color: #0ca;
}

pre, blockquote {
  border-left: 2px solid #0ca;
  padding: 5px 0 5px 20px;
  font-size: 0.9em;
  margin: 20px 0 40px;
  max-width: 100%;
  box-sizing: border-box;
  overflow-x: auto;
}

code {
  font-family: "Menlo", "Consolas", "Monaco", monospace;
}

code.hljs {
  overflow: visible;
}

/* Demo elements */
p {
  position: relative;
  margin-bottom: 1.5em;
}

.demoOverlay {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  /* background: rgba(0,0,0,.2); */
  box-sizing: border-box;
}

/* The canvas stays hidden until the sketch has painted, so the preview image
   underneath is never replaced by an empty rectangle. A demo that fails to
   load simply keeps showing the preview. */
.demoOverlay canvas,
.demoOverlay svg {
  opacity: 0;
  transition: opacity 0.35s ease-out;
}

.demoOverlay.has-painted canvas,
.demoOverlay.has-painted svg {
  opacity: 1;
}

/* Keep playback and source controls visible and keyboard reachable. */
.demoOverlay .demoToggle,
.demoOverlay .sourceCodeLink {
  display: block;
  position: absolute;
  bottom: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 10px;
  font-size: 11px;
  border: 0;
  line-height: 1.5;
  z-index: 1;
}

.demoOverlay.active {
  box-shadow: 0 0 0 2px #fff;
}

.demoOverlay .demoToggle {
  left: 0;
  right: auto;
  cursor: pointer;
}

.demoOverlay .demoToggle:disabled {
  visibility: hidden;
}
.demoOverlay .demoToggle:focus-visible,
.demoOverlay .sourceCodeLink:focus-visible {
  outline: 3px solid #42e;
  outline-offset: 2px;
}

.demoOverlay .sourceCodeLink::after {
  content: "↗";
}

/* Loading spinner. Shown only after a short delay, so a cached demo does not
   flash one on every scroll, and never outlives its own state. */
.demoSpinner {
  display: none;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1.6em;
  height: 1.6em;
  margin: -0.8em 0 0 -0.8em;
  border: 2px solid rgba(18, 35, 51, 0.18);
  border-top-color: rgba(18, 35, 51, 0.65);
  border-radius: 50%;
  animation: demoSpin 0.7s linear infinite;
}

.demoOverlay.is-loading.show-spinner .demoSpinner {
  display: block;
}

@keyframes demoSpin {
  to {
    transform: rotate(360deg);
  }
}

/* A static ring reads as "working" without the motion. */
@media (prefers-reduced-motion: reduce) {
  .demoSpinner {
    animation: none;
    border-top-color: rgba(18, 35, 51, 0.18);
    opacity: 0.8;
  }
}

.demoStatus {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 10px;
  background: rgba(18, 35, 51, 0.75);
  color: #fff;
  font-size: 11px;
  line-height: 1.4;
}

.demoOverlay.is-failed .demoStatus {
  display: block;
}

/* Mobile and Responsive */
@media screen and (max-device-width: 768px),
  screen and (max-width: 768px),
  print {
  /* Header and footer */

  #header,
  #footer {
    width: 70%;
    margin: 0 auto;
    line-height: 80px;
  }

  #footer {
    line-height: 1.4;
    padding: 100px 0 30px;
  }

  #header a:first-child {
    padding-left: 0;
  }

  #header a:last-child {
    padding-right: 0;
  }

  #topmenu > a {
    display: inline-block;
    box-sizing: border-box;
    padding-left: 10px;
    padding-right: 10px;
  }

  #topmenu > a:nth-child(n + 3) {
    display: none;
  }

  #pts {
    padding-left: 0;
  }
  #pts a {
    padding: 0;
  }
  #topmenu {
    right: 0;
  }
  #topmenu a {
    right: 0;
  }

  /* --------- */

  #menu {
    position: fixed;
    left: -100%;
    visibility: hidden;
    top: 0;
    bottom: 0;
    padding: 90px 40px 40px;
    margin: 0;
    width: min(90vw, 520px);
    max-width: none;
    box-sizing: border-box;
    overflow: auto;
    z-index: 100;
    background: #42e;
  }

  #menu li {
    color: #fff;
    font-size: 2.2em;
    border: none;
  }

  #menu li:last-child {
    border: none;
  }

  #menu li:before {
    font-weight: normal;
    color: rgba(255, 255, 255, 0.6);
  }

  #menu li a {
    color: #fff;
    text-decoration: none;
  }
  #menu li a:visited {
    color: #fff;
  }
  #menu li a:hover {
    color: #0ca;
  }

  #post {
    margin: 0 auto;
    width: 70%;
    min-width: 50%;
    font-size: 1.3em;
  }

  #toc {
    display: block;
    text-decoration: none;
  }

  /* The menu opens via the #menu hash without JavaScript; with JavaScript, the
     `open` class is the only authority (Chromium keeps :target matching after
     history.replaceState, so the class must win once scripts run). */
  #menu.open,
  html:not(.js) #menu:target {
    visibility: visible;
    background: #42e;
    transition: left 0.3s;
    left: 0;
  }

  #close {
    display: block;
  }
}

/* Mobile */
@media screen and (max-device-width: 767px), screen and (max-width: 767px) {
  /* Header and Footer */

  #header {
    box-sizing: border-box;
    display: flex;
    align-items: center;
    padding: 0 12px 0 52px;
    margin: 0;
    width: 100%;
    line-height: 70px;
    font-size: 1.2em;
  }

  #pts {
    white-space: nowrap;
  }
  #topmenu {
    position: static;
    margin-left: auto;
    white-space: nowrap;
  }

  #topmenu > a {
    padding: 0 6px;
  }
  #topmenu > a:last-child {
    padding-right: 0;
  }

  #post {
    width: calc(100% - 40px);
    overflow-wrap: anywhere;
  }

  #toc {
    width: 50px;
    height: 80px;
    line-height: 65px;
    font-size: 2.5em;
  }

  /* ------- */

  #menu {
    padding: 60px 24px 24px;
  }

  #menu li {
    font-size: 1.2em;
    line-height: 44px;
  }

  #menu li::before {
    padding-right: 10px;
  }

  #close {
    font-size: 2.2em;
    line-height: 60px;
    width: 60px;
  }

  h1 {
    font-size: 2.5em;
    margin: 1em 0;
  }

  code {
    font-size: 0.8em;
  }

  .demoOverlay {
    touch-action: none;
  }
}

/* Print */
@media print {
  #close,
  #toc {
    display: none;
  }
  #header,
  #footer {
    text-align: left;
  }
  #footer {
    padding-bottom: 0;
  }
  #topmenu {
    display: none;
  }
  #header {
    padding-top: 10px;
    padding-bottom: 10px;
  }
  h1,
  h2,
  h3 {
    break-after: avoid-page;
    page-break-after: avoid;
    page-break-inside: avoid;
  }

  h5 {
    margin: 10px;
  }
}

/*

XCode style (c) Angel Garcia <angelgarcia.mail@gmail.com>

*/

.hljs {
  display: block;
  overflow-x: auto;
  padding: 0.5em;
  background: #fff;
  color: black;
}

.hljs-comment,
.hljs-quote {
  color: #006a00;
}

.hljs-keyword,
.hljs-selector-tag,
.hljs-literal {
  color: #aa0d91;
}

.hljs-name {
  color: #008;
}

.hljs-variable,
.hljs-template-variable {
  color: #660;
}

.hljs-string {
  color: #c41a16;
}

.hljs-regexp,
.hljs-link {
  color: #080;
}

.hljs-title,
.hljs-tag,
.hljs-symbol,
.hljs-bullet,
.hljs-number,
.hljs-meta {
  color: #1c00cf;
}

.hljs-section,
.hljs-class .hljs-title,
.hljs-type,
.hljs-attr,
.hljs-built_in,
.hljs-builtin-name,
.hljs-params {
  color: #5c2699;
}

.hljs-attribute,
.hljs-subst {
  color: #000;
}

.hljs-formula {
  background-color: #eee;
  font-style: italic;
}

.hljs-addition {
  background-color: #baeeba;
}

.hljs-deletion {
  background-color: #ffc8bd;
}

.hljs-selector-id,
.hljs-selector-class {
  color: #9b703f;
}

.hljs-doctag,
.hljs-strong {
  font-weight: bold;
}

.hljs-emphasis {
  font-style: italic;
}

@media screen and (max-width: 768px) {
  #header {
    box-sizing: border-box;
    width: 100%;
    margin: 0;
    padding: 0 12px 0 52px;
    display: flex;
    align-items: center;
  }
  #pts {
    padding: 0;
    font-size: 12px;
    white-space: nowrap;
  }
  #toc {
    width: 50px;
  }
  #topmenu {
    position: static;
    display: flex;
    align-items: center;
    margin-left: auto;
    white-space: nowrap;
  }
  #topmenu > a,
  #topmenu > a:nth-child(n + 3) {
    display: block;
    padding: 0 4px;
    font-size: 12px;
    line-height: 44px;
  }
}