/* CSS Remedy */
*,::after,::before{
  box-sizing:border-box;
}
[hidden]{
  display:none;
}
audio,canvas,embed,iframe,
img,object,svg,video{
  display:block;
  max-width:100%;
}
audio:not([controls]){
  display:none;
}
picture{
  display:contents;
}
source{
  display:none;
}
canvas,img,svg,video{
  height:auto;
}
audio{
  width:100%;
}
img{
  border-style:none;
}
svg{
  overflow:hidden;
}
article,aside,details,figcaption,figure,
footer,header,hgroup,main,nav,section{
  display:block;
}
/* CSS Remedy */

:root {
  --font-family: Segoe UI, "Helvetica Neue", Yu Gothic UI, Yu Gothic, YuGothic, -apple-system, BlinkMacSystemFont, "Avenir Next", Avenir,
    "Nimbus Sans L", Roboto, Noto, "Segoe UI", Arial, Helvetica, sans-serif;
  --mono-font: Consolas, Menlo, Monaco, "Andale Mono", "Ubuntu Mono", monospace;
  --base-fontsize: 16px;
  /* Major third scale progression - see https://type-scale.com/ */
  --header-scale: 1.25;
  /* Line height is set to the "Golden ratio" for optimal legibility */
  --line-height: 1.618;
  /* Default (light) theme */
  --bg: #fff;
  --accent-bg: #f5f7ff;
  --text: #212121;
  --text-light: #585858;
  --border: #d8dae1;
  --accent: #0d47a1;
  --accent-light: #90caf9;
  --code: #d81b60;
  --preformatted: #444;
  --marked: #ffdd33;
  --disabled: #efefef;
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #4A4949;
    --accent-bg: #2b2b2b;
    --text: #fcfcfc;
    --text-light: #ababab;
    --border: #666;
    --accent: #ffb300;
    --accent-light: #ffecb3;
    --code: #f06292;
    --preformatted: #ccc;
    --disabled: #111;
  }
  img,
  video {
    opacity: 0.6;
  }
}

html {
  font-family: var(--font-family);
}
body {
  color: var(--text);
  background: var(--bg);
  font-size: var(--base-fontsize);
  line-height: var(--line-height);
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  flex: 1;
  margin: 0 auto;
  max-width: 60rem;
  padding: 0 0.5rem;
  overflow-x: hidden;
  word-break: break-word;
  overflow-wrap: break-word;
}
header {
  background: var(--accent-bg);
  border-bottom: 1px solid var(--border);
  text-align: center;
  padding: 1rem 0.5rem;
  width: 100vw;
  position: relative;
  box-sizing: border-box;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
}
header h1,
header p {
  margin: 0;
}
main {
  padding-top: 1.5rem;
}
nav {
  font-size: 1rem;
  line-height: 2;
  padding: 1rem 0;
}
nav a {
  border-radius: 3px;
  color: var(--text) !important;
  display: inline-block;
  padding: 0.1rem;
  text-decoration: none;
  transition: 0.4s;
  position: relative;
}

nav a:hover {
  text-decoration: underline;
}
footer {
  margin-top: 4rem;
  padding: 2rem 0 1.5rem;
  color: var(--text-light);
  font-size: 0.9rem;
  text-align: center;
  border-top: 1px solid var(--border);
}
/* Format headers */
h1 {
  font-size: calc(
    var(--base-fontsize) * var(--header-scale) * var(--header-scale) *
      var(--header-scale) * var(--header-scale)
  );
  line-height: 1.1;
  margin:.67em 0;
}
h2 {
  font-size: calc(
    var(--base-fontsize) * var(--header-scale) * var(--header-scale) *
      var(--header-scale)
  );
  margin-top: calc(var(--line-height) * 1.5rem);
  line-height: 1.1;
}
h3 {
  font-size: calc(
    var(--base-fontsize) * var(--header-scale) * var(--header-scale)
  );
  margin-top: calc(var(--line-height) * 1.5rem);
  line-height: 1.1;
}
h4 {
  font-size: calc(var(--base-fontsize) * var(--header-scale));
  margin-top: calc(var(--line-height) * 1.5rem);
}
h5 {
  font-size: var(--base-fontsize);
  margin-top: calc(var(--line-height) * 1.5rem);
}
h6 {
  font-size: calc(var(--base-fontsize) / var(--header-scale));
  margin-top: calc(var(--line-height) * 1.5rem);
}
p {
  font-size: clamp(0.8rem, 2vw + 1rem, 1.5rem);
}
/* Format links & buttons */
a,
a:visited {
  color: var(--accent);
}
a:hover {
  text-decoration: none;
}
a button,
button,
[role="button"],
input[type="submit"],
input[type="reset"],
input[type="button"] {
  border: none;
  border-radius: 5px;
  background: var(--accent);
  font-size: 1rem;
  color: var(--bg);
  padding: 0.7rem 0.9rem;
  margin: 0.5rem 0;
  transition: 0.4s;
}
a button[disabled],
button[disabled],
[role="button"][aria-disabled="true"],
input[type="submit"][disabled],
input[type="reset"][disabled],
input[type="button"][disabled],
input[type="checkbox"][disabled],
input[type="radio"][disabled],
select[disabled] {
  cursor: default;
  opacity: 0.5;
  cursor: not-allowed;
}
input:disabled,
textarea:disabled,
select:disabled {
  cursor: not-allowed;
  background-color: var(--disabled);
}
input[type="range"] {
  padding: 0;
}
/* Set the cursor to '?' while hovering over an abbreviation */
abbr {
  cursor: help;
}
button:focus,
button:enabled:hover,
[role="button"]:focus,
[role="button"]:not([aria-disabled="true"]):hover,
input[type="submit"]:focus,
input[type="submit"]:enabled:hover,
input[type="reset"]:focus,
input[type="reset"]:enabled:hover,
input[type="button"]:focus,
input[type="button"]:enabled:hover {
  filter: brightness(1.4);
  cursor: pointer;
}
input[type="checkbox"]:enabled:hover,
input[type="radio"]:enabled:hover {
  filter: drop-shadow(0 0 5px #414040);
  cursor: pointer;
}
/* Format the expanding box */
details {
  background: var(--accent-bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  margin-bottom: 1rem;
}
summary {
  cursor: pointer;
  font-weight: bold;
  padding: 0.6rem 1rem;
}
details[open] {
  padding: 0.6rem 1rem 0.75rem 1rem;
}
details[open] summary {
  margin-bottom: 0.5rem;
  padding: 0;
}
details[open] > *:last-child {
  margin-bottom: 0;
}
/* Format tables */
table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.5rem 0;
}
td,
th {
  border: 1px solid var(--border);
  padding: 0.5rem;
}
th {
  background: var(--accent-bg);
  font-weight: bold;
}
tr:nth-child(even) {
  /* Set every other cell slightly darker. Improves readability. */
  background: var(--accent-bg);
}
table caption {
  font-weight: bold;
  margin-bottom: 0.5rem;
}
/* Lists */
ol,
ul {
  padding-left: 1rem;
  list-style-type: none;
}
/* Format forms */
textarea,
select,
input {
  font-size: inherit;
  font-family: inherit;
  padding: 0.5rem;
  margin-bottom: 0.45rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  box-shadow: none;
  box-sizing: border-box;
  width: 60%;
  -moz-appearance: none;
  -webkit-appearance: none;
  appearance: none;
}
input + label {
  transform: translateY(-10%);
  display: inline-block;
}
/* Add arrow to  */
select {
  background-image: linear-gradient(45deg, transparent 49%, var(--text) 51%),
    linear-gradient(135deg, var(--text) 51%, transparent 49%);
  background-position: calc(100% - 20px), calc(100% - 15px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
select[multiple] {
  background-image: none !important;
}
/* checkbox and radio button style */
input[type="checkbox"],
input[type="radio"] {
  vertical-align: bottom;
  position: relative;
}
input[type="radio"] {
  border-radius: 100%;
}
input[type="checkbox"]:checked,
input[type="radio"]:checked {
  background: var(--accent);
}
input[type="checkbox"]:checked::after {
  /* Creates a rectangle with colored right and bottom borders which is rotated to look like a check mark */
  content: " ";
  width: 0.18em;
  height: 0.35em;
  border-radius: 0;
  position: absolute;
  top: 0.08em;
  left: 0.18em;
  background: transparent;
  border-right: solid var(--bg) 0.08em;
  border-bottom: solid var(--bg) 0.08em;
  font-size: 1.8em;
  transform: rotate(45deg);
}
input[type="radio"]:checked::after {
  /* creates a colored circle for the checked radio button  */
  content: " ";
  width: 0.25em;
  height: 0.25em;
  border-radius: 100%;
  position: absolute;
  top: 0.125em;
  background: var(--bg);
  left: 0.125em;
  font-size: 32px;
}
/* Make the textarea wider than other inputs */
textarea {
  width: 80%;
}
/* Makes input fields wider on smaller screens */
@media only screen and (max-width: 720px) {
  textarea,
  select,
  input {
    width: 100%;
  }
}
/* Ensures the checkbox and radio inputs do not have a set width like other input fields */
input[type="checkbox"],
input[type="radio"] {
  width: auto;
}
/* do not show border around file selector button */
input[type="file"] {
  border: 0;
}
/* Without this any HTML using <fieldset> shows ugly borders and has additional padding/margin. (Issue #3) */
fieldset {
  border: 0;
  padding: 0;
  margin: 0;
}
/* Misc body elements */
hr {
  color: var(--border);
  border-top: 1px;
  margin: 1rem auto;
}
mark {
  padding: 2px 5px;
  border-radius: 4px;
  background: var(--marked);
}
main img,
main video {
  max-width: 100%;
  height: auto;
  border-radius: 5px;
}
figure {
  margin: 0;
}
figcaption {
  font-size: 0.9rem;
  color: var(--text-light);
  text-align: center;
  margin-bottom: 1rem;
}
blockquote {
  margin: 2rem 0 2rem 2rem;
  padding: 0.4rem 0.8rem;
  border-left: 0.35rem solid var(--accent);
  opacity: 0.8;
  font-style: italic;
}
cite {
  font-size: 0.9rem;
  color: var(--text-light);
  font-style: normal;
}
/* Use mono font for code like elements */
code,
pre,
pre span,
kbd,
samp {
  font-size: 1.075rem;
  font-family: var(--mono-font);
  color: var(--code);
}
kbd {
  color: var(--preformatted);
  border: 1px solid var(--preformatted);
  border-bottom: 3px solid var(--preformatted);
  border-radius: 5px;
  padding: 0.1rem;
}
pre {
  padding: 1rem 1.4rem;
  max-width: 100%;
  overflow: auto;
  overflow-x: auto;
  color: var(--preformatted);
  background: var(--accent-bg);
  border: 1px solid var(--border);
  border-radius: 5px;
}
/* Fix embedded code within pre */
pre code {
  color: var(--preformatted);
  background: none;
  margin: 0;
  padding: 0;
}

form {
  display: flex;
  flex-direction: column;
  align-items: center;
}

form input:not([type='radio']):not([type='checkbox']):not([type='color']):not([type='button']):not([type='submit']),
form textarea {
  background: var(--accent-bg);
  outline: none;
  color: var(--accent);
  width: 90%;
}

form input:not([type='radio']):not([type='checkbox']):not([type='color']):not([type='button']):not([type='submit']):focus,
form textarea:focus {
  border: 1px solid rgba(66, 135, 245, .8);
  filter: drop-shadow(0 0 5px rgba(66, 135, 245, .8));
}