/* Global variables. */
:root {
  /* Set sans-serif & mono fonts */
  --sans-font: -apple-system, BlinkMacSystemFont, "Avenir Next", Avenir,
    "Nimbus Sans L", Roboto, Noto, "Segoe UI", Arial, Helvetica,
    "Helvetica Neue", sans-serif;
  --mono-font: Consolas, Menlo, Monaco, "Andale Mono", "Ubuntu Mono", monospace;

  --bg: #fef9f1;
  --accent-bg: #f5efe5;
  --text: #0b0e0a;
  --text-light: #b6bbb0;
  --border: #b6bbb0;

  --code: #d81b60;
  --preformatted: #3f415c;
  --marked: #f4d3a1;
  --disabled: #efefef;

  --accent1: #f4d3a1;
  --accent2: #82b39a;
  --accent3: #f5efe5;
  --accent4: #e07a60;
  --accent5: #3f415c;
}

* {
  box-sizing: border-box;
}

html {
  /* Set the font globally */
  font-family: var(--sans-font);
  scroll-behavior: smooth;
}

/* Make the body a nice central block */
body {
  color: var(--text);
  background: var(--bg);
  font-size: 0.875rem;
  line-height: 1.5;
  margin: 0;
}

/* Format headers */
h1,
h2,
h3,
h4,
h5,
h6,
p {
  margin: 0;
}

h1 {
  font-size: 3rem;
}

h2 {
  font-size: 2.6rem;
}

h3 {
  font-size: 2rem;
}

h4 {
  font-size: 1.44rem;
}

h5 {
  font-size: 1.15rem;
}

h6 {
  font-size: 0.96rem;
}

/* Fix line height when title wraps */
h1,
h2,
h3 {
  line-height: 1.1;
}

/* Reduce header size on mobile */
@media only screen and (max-width: 720px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2.1rem;
  }

  h3 {
    font-size: 1.75rem;
  }

  h4 {
    font-size: 1.25rem;
  }
}

/* Format links & buttons */
a,
a:visited {
  color: inherit;
  text-decoration: none;
}

button,
[role="button"],
input[type="submit"],
input[type="reset"],
input[type="button"],
label[type="button"] {
  font-size: 0.875rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--accent1);
  color: var(--accent5);
  padding: 0.7rem 0.9rem;
  margin: 0.5rem 0;
  transition: all 0.25s ease-in-out;
}

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] {
  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,
label[type="button"]:focus,
label[type="button"]:hover {
  color: var(--accent3);
  background-color: var(--accent2);
  cursor: pointer;
}
/* Format the expanding box */
details {
  background: var(--accent-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  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-top: 0;
}

details[open] summary {
  margin-bottom: 0.5rem;
  padding: 0;
}

details[open] > :last-child {
  margin-bottom: 0;
}

/* Format tables */
table {
  border-collapse: collapse;
  display: block;
  margin: 1.5rem 0;
  overflow: auto;
  width: 100%;
}

td,
th {
  border: 1px solid var(--border);
  text-align: left;
  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;
}

/* Format forms */
textarea,
select,
input {
  font-size: inherit;
  font-family: inherit;
  padding: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: none;
  box-sizing: border-box;
  width: 60%;
  -moz-appearance: none;
  -webkit-appearance: none;
  appearance: none;
}

/* Add arrow to drop-down */
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: middle;
  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: 0.1em;
  height: 0.25em;
  border-radius: 0;
  position: absolute;
  top: 0.05em;
  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;
}

/* 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: 4px;
}

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

figcaption {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 1rem;
}

blockquote {
  margin: 2rem 0 2rem 2rem;
  padding: 0.4rem 0.8rem;
  border-left: 0.35rem solid var(--accent);
  color: var(--text-light);
  font-style: italic;
}

cite {
  font-size: 0.9rem;
  color: var(--text-light);
  font-style: normal;
}

/* Use mono font for code elements */
code,
pre,
pre span,
kbd,
samp {
  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: 4px;
  padding: 0.1rem 0.4rem;
}

pre {
  padding: 1rem 1.4rem;
  max-width: 100%;
  overflow: auto;
  color: var(--preformatted);
  background: var(--accent-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
}

/* Fix embedded code within pre */
pre code {
  color: var(--preformatted);
  background: none;
  margin: 0;
  padding: 0;
}

/*progress bar*/
progress {
  width: 100%;
}
progress::-webkit-progress-bar {
  border-radius: 4px;
}
progress::-webkit-progress-value {
  border-radius: 4px;
  transition-property: width;
  transition-duration: 0.3s;
}
progress::-moz-progress-bar {
  border-radius: 4px;
}

label {
  display: inline-block;
}