/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */

/* Document
   ========================================================================== */

/**
 * 1. Correct the line height in all browsers.
 * 2. Prevent adjustments of font size after orientation changes in iOS.
 */

html {
  line-height: 1.15; /* 1 */
  -webkit-text-size-adjust: 100%; /* 2 */
}

/* Sections
   ========================================================================== */

/**
 * Remove the margin in all browsers.
 */

body {
  margin: 0;
}

/**
 * Render the `main` element consistently in IE.
 */



/**
 * Correct the font size and margin on `h1` elements within `section` and
 * `article` contexts in Chrome, Firefox, and Safari.
 */



/* Grouping content
   ========================================================================== */

/**
 * 1. Add the correct box sizing in Firefox.
 * 2. Show the overflow in Edge and IE.
 */

hr {
  box-sizing: content-box; /* 1 */
  height: 0; /* 1 */
  overflow: visible; /* 2 */
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */

pre {
  font-family: monospace, monospace; /* 1 */
  font-size: 1em; /* 2 */
}

/* Text-level semantics
   ========================================================================== */

/**
 * Remove the gray background on active links in IE 10.
 */

a {
  background-color: transparent;
}

/**
 * 1. Remove the bottom border in Chrome 57-
 * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
 */

abbr[title] {
  border-bottom: none; /* 1 */
  text-decoration: underline; /* 2 */
  text-decoration: underline dotted; /* 2 */
}

/**
 * Add the correct font weight in Chrome, Edge, and Safari.
 */

b,
strong {
  font-weight: bolder;
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */

code,
kbd,
samp {
  font-family: monospace, monospace; /* 1 */
  font-size: 1em; /* 2 */
}

/**
 * Add the correct font size in all browsers.
 */

small {
  font-size: 80%;
}

/**
 * Prevent `sub` and `sup` elements from affecting the line height in
 * all browsers.
 */

sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

/* Embedded content
   ========================================================================== */

/**
 * Remove the border on images inside links in IE 10.
 */

img {
  border-style: none;
}

/* Forms
   ========================================================================== */

/**
 * 1. Change the font styles in all browsers.
 * 2. Remove the margin in Firefox and Safari.
 */

button,
input,
optgroup,
select,
textarea {
  font-family: inherit; /* 1 */
  font-size: 100%; /* 1 */
  line-height: 1.15; /* 1 */
  margin: 0; /* 2 */
}

/**
 * Show the overflow in IE.
 * 1. Show the overflow in Edge.
 */

button,
input { /* 1 */
  overflow: visible;
}

/**
 * Remove the inheritance of text transform in Edge, Firefox, and IE.
 * 1. Remove the inheritance of text transform in Firefox.
 */

button,
select { /* 1 */
  text-transform: none;
}

/**
 * Correct the inability to style clickable types in iOS and Safari.
 */

button,
[type="button"],
[type="reset"],
[type="submit"] {
  -webkit-appearance: button;
}

/**
 * Remove the inner border and padding in Firefox.
 */

button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  border-style: none;
  padding: 0;
}

/**
 * Restore the focus styles unset by the previous rule.
 */

button:-moz-focusring,
[type="button"]:-moz-focusring,
[type="reset"]:-moz-focusring,
[type="submit"]:-moz-focusring {
  outline: 1px dotted ButtonText;
}

/**
 * Correct the padding in Firefox.
 */

fieldset {
  padding: 0.35em 0.75em 0.625em;
}

/**
 * 1. Correct the text wrapping in Edge and IE.
 * 2. Correct the color inheritance from `fieldset` elements in IE.
 * 3. Remove the padding so developers are not caught out when they zero out
 *    `fieldset` elements in all browsers.
 */

legend {
  box-sizing: border-box; /* 1 */
  color: inherit; /* 2 */
  display: table; /* 1 */
  max-width: 100%; /* 1 */
  padding: 0; /* 3 */
  white-space: normal; /* 1 */
}

/**
 * Add the correct vertical alignment in Chrome, Firefox, and Opera.
 */

progress {
  vertical-align: baseline;
}

/**
 * Remove the default vertical scrollbar in IE 10+.
 */

textarea {
  overflow: auto;
}

/**
 * 1. Add the correct box sizing in IE 10.
 * 2. Remove the padding in IE 10.
 */

[type="checkbox"],
[type="radio"] {
  box-sizing: border-box; /* 1 */
  padding: 0; /* 2 */
}

/**
 * Correct the cursor style of increment and decrement buttons in Chrome.
 */

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

/**
 * 1. Correct the odd appearance in Chrome and Safari.
 * 2. Correct the outline style in Safari.
 */

[type="search"] {
  -webkit-appearance: textfield; /* 1 */
  outline-offset: -2px; /* 2 */
}

/**
 * Remove the inner padding in Chrome and Safari on macOS.
 */

[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}

/**
 * 1. Correct the inability to style clickable types in iOS and Safari.
 * 2. Change font properties to `inherit` in Safari.
 */

::-webkit-file-upload-button {
  -webkit-appearance: button; /* 1 */
  font: inherit; /* 2 */
}

/* Interactive
   ========================================================================== */

/*
 * Add the correct display in Edge, IE 10+, and Firefox.
 */

details {
  display: block;
}

/*
 * Add the correct display in all browsers.
 */

summary {
  display: list-item;
}

/* Misc
   ========================================================================== */

/**
 * Add the correct display in IE 10+.
 */

template {
  display: none;
}

/**
 * Add the correct display in IE 10.
 */

[hidden] {
  display: none;
}

/*! Flickity v2.3.0
https://flickity.metafizzy.co
---------------------------------------------- */

.flickity-enabled {
  position: relative;
}

.flickity-enabled:focus { outline: none; }

.flickity-viewport {
  overflow: hidden;
  position: relative;
  height: 180px;
  width: 100%;
  display: flex;
  flex-flow: row;
  justify-content: space-evenly;
  align-content: center;
}

.flickity-slider {
  position: absolute;
  width: 100%;
  
  height: 100%;
  display: flex;
  flex-flow: row;
  justify-content: space-evenly;
  align-content: center;
}

/* draggable */

.flickity-enabled.is-draggable {
  -webkit-tap-highlight-color: transparent;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}

.flickity-enabled.is-draggable .flickity-viewport {
  cursor: move;
  cursor: -webkit-grab;
  cursor: grab;
}

.flickity-enabled.is-draggable .flickity-viewport.is-pointer-down {
  cursor: -webkit-grabbing;
  cursor: grabbing;
}

/* ---- flickity-button ---- */

.flickity-button {
  position: absolute;
  background: hsla(0, 0%, 100%, 0.75);
  border: none;
  color: #333;
  z-index: 5;
}

.flickity-button:hover {
  background: white;
  cursor: pointer;
}

.flickity-button:focus {
  outline: none;
  box-shadow: 0 0 0 5px #19F;
}

.flickity-button:active {
  opacity: 0.6;
}

.flickity-button:disabled {
  opacity: 0.3;
  cursor: auto;
  /* prevent disabled button from capturing pointer up event. #716 */
  pointer-events: none;
}

.flickity-button-icon {
  fill: currentColor;
}

/* ---- previous/next buttons ---- */

.flickity-prev-next-button {
  top: 100%;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  /* vertically center */
}

.flickity-prev-next-button.previous { left: 50px; }
.flickity-prev-next-button.next { right: 50px; }
/* right to left */
.flickity-rtl .flickity-prev-next-button.previous {
  left: auto;
  right: 50px;
}
.flickity-rtl .flickity-prev-next-button.next {
  right: auto;
  left: 50px;
}

.flickity-prev-next-button .flickity-button-icon {
  position: absolute;
  left: 20%;
  top: 20%;
  width: 60%;
  height: 60%;
}

/* ---- page dots ---- */

.flickity-page-dots {
  position: absolute;
  width: 100%;
  bottom: -16px;
  padding: 0;
  margin: 0;
  list-style: none;
  text-align: center;
  line-height: 1;
}

.flickity-rtl .flickity-page-dots { direction: rtl; }

.flickity-page-dots .dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin: 0 8px;
  background: rgb(240, 240, 240);
  box-shadow: 0 5px 4px rgba(34, 30, 30, 0.9);
  border: solid 0.25px rgb(160, 160, 160);
  border-radius: 50%;
  opacity: 0.6;
  cursor: pointer;
}

.flickity-page-dots .dot.is-selected {
  opacity: 1;
  
}

/* Flickity fullscreen v1.0.1
------------------------- */

.flickity-enabled.is-fullscreen {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: hsla(0, 0%, 0%, 0.9);
  padding-bottom: 35px;
  z-index: 1;
}

.flickity-enabled.is-fullscreen .flickity-page-dots {
  bottom: 10px;
}

.flickity-enabled.is-fullscreen .flickity-page-dots .dot {
  background: white;
}

/* prevent page scrolling when flickity is fullscreen */
html.is-flickity-fullscreen {
  overflow: hidden;
}

/* ---- flickity-fullscreen-button ---- */

.flickity-fullscreen-button {
  display: block;
  right: 10px;
  top: 10px;
  width: 24px;
  height: 24px;
  border-radius: 4px;
}

/* right-to-left */
.flickity-rtl .flickity-fullscreen-button {
  right: auto;
  left: 10px;
}

.flickity-fullscreen-button-exit { display: none; }

.flickity-enabled.is-fullscreen .flickity-fullscreen-button-exit { display: block; }
.flickity-enabled.is-fullscreen .flickity-fullscreen-button-view { display: none; }

.flickity-fullscreen-button .flickity-button-icon {
  position: absolute;
  width: 16px;
  height: 16px;
  left: 4px;
  top: 4px;
}

/* flickity-fade */

.flickity-enabled.is-fade .flickity-slider > * {
  pointer-events: none;
  z-index: 0;
}

.flickity-enabled.is-fade .flickity-slider > .is-selected {
  pointer-events: auto;
  z-index: 1;
}


/* argument
------------------------- */

.argument {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
}

.argument__type {
  color: #777;
}

.argument__type,
.argument__description {
  margin-left: 0.4rem;
}

.argument__type::before,
.argument__description::before {
  content: '·';
  padding-right: 0.4rem;
  display: inline-block;
}

/* button
------------------------- */

.button {
  display: inline-block;
  padding: 5px 15px;
  margin-bottom: 10px;
  background-color: #F8F8F8;
  background-image: linear-gradient(hsla(0, 0%, 0%, 0), hsla(0, 0%, 0%, 0.1));
  border: 1px solid #CCC;
  border-radius: 5px;
}

.button:enabled {
  cursor: pointer;
}

.button:active {
  color: white;
  background-color: #59F;
  box-shadow: inset 0 1px 10px hsla(0, 0%, 0%, 0.8);
}

.button:enabled:hover {
  background-color: #8CF;
}

.button.is-checked,
.button.is-selected {
  background-color: #19F;
  color: white;
}

/* hide radio inputs */
.button input[type="radio"] { display: none; }

/* ---- button-group ---- */

.button-group::after {
  content: '';
  display: block;
  clear: both;
}

/* stylelint-disable-next-line no-descending-specificity */
.button-group .button {
  float: left;
  border-radius: 0;
  margin-left: -1px;
}

.button-group .button:first-child { border-radius: 5px 0 0 5px; }
.button-group .button:last-child { border-radius: 0 5px 5px 0; }

/* call out
------------------------- */

.call-out {
  border-top: 2px solid #ED2;
  border-bottom: 2px solid #ED2;
  padding-left: 40px;
  position: relative;
  margin: 20px 0;
}

/* (i) */
.call-out::before {
  content: 'i';
  display: block;
  width: 20px;
  height: 20px;
  position: absolute;
  left: 5px;
  top: 20px;
  background: #ED2;
  border-radius: 50%;
  text-align: center;
  color: white;
  font-family: Consolas, Georgia, serif;
  font-style: italic;
}

.call-out h2 {
  margin-top: 0;
  padding-top: 10px;
  border-top: none;
}

.call-out--chill { border-color: #8C8; }
.call-out--chill::before { background: #8C8; }

/* ---- call-out--big-copy ---- */

.call-out--big-copy p,
.call-out--big-copy li,
.call-out--big-copy li::before {
  font-size: 1.2rem;
  line-height: 1.2;
}

/* ---- quick-start-list ---- */

.call-out--big-copy ol {
  list-style: none;
}

.quick-start-list li {
  position: relative;
  counter-increment: call-out-big-copy-item;
}

.quick-start-list li::before {
  content: counter(call-out-big-copy-item) ".";
  position: absolute;
  left: -1.2rem;
  font-size: 1.2rem;
  font-weight: bold;
}

.quick-start-list {
  list-style: none;
}

@media screen and (min-width: 768px) {
  .call-out {
    border: 2px solid #ED2;
    padding: 10px 20px 10px 80px;
    border-radius: 6px;
    position: relative;
    margin: 20px 0;
  }

  .call-out--chill { border-color: #8C8; }

  .call-out::before {
    width: 40px;
    height: 40px;
    left: 20px;
    top: 30px;
    font-size: 1.9rem;
    line-height: 46px;
  }
}

/* buy-button
------------------------- */

.buy-button {
  display: block;
  margin-bottom: 10px;
  line-height: 1.3rem;
  border-radius: 8px;
  padding: 10px 100px 10px 10px;
  position: relative;
  text-align: center;
}

.buy-button__title {
  font-weight: bold;
}

.buy-button__for {
  display: block;
  font-style: italic;
}

.buy-button__price {
  font-size: 1.6rem;
  background: #888;
  color: white;
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 80px;
  border-radius: 0 8px 8px 0;
  text-align: center;
  line-height: 64px;
}

.buy-button__price__dollar {
  font-size: 1.4rem;
  margin-right: 3px;
  vertical-align: top;
}

@media screen and (min-width: 768px) {

  /* ---- buy-button-trio ---- */

  .buy-button-trio {
    margin-top: 40px;
    margin-bottom: 50px;
  }

  .buy-button-trio::after {
    content: '';
    display: block;
    clear: both;
  }

  /* ---- buy-button-trio buy-button ---- */

  .buy-button-trio .buy-button {
    float: left;
    width: 31.33%;
    margin-right: 3%;
    padding: 20px 0 0;
    transition: transform 0.2s;
  }

  .buy-button-trio .buy-button:nth-child(3) {
    margin-right: 0;
  }

  .buy-button-trio .buy-button > span {
    display: block;
    padding-left: 10px;
    padding-right: 10px;
  }

  .buy-button-trio .buy-button__project,
  .buy-button-trio .buy-button__license {
    font-size: 1.1rem;
  }

  .buy-button-trio .buy-button__title {
    font-size: 1.9rem;
    line-height: 1.2;
  }

  .buy-button-trio .buy-button__license {
    margin-bottom: 15px;
  }

  .buy-button-trio .buy-button__for {
    margin-bottom: 20px;
    font-size: 1.1rem;
  }

  .buy-button-trio .buy-button__price {
    position: relative;
    width: auto;
    font-size: 2.4rem;
    line-height: 1.3;
    padding-top: 15px;
    padding-bottom: 10px;
    border-radius: 0 0 8px 8px;
  }

  .buy-button-trio .buy-button__was-price {
    display: block;
    padding-bottom: 10px;
  }

  .buy-button-trio .buy-button__price__dollar {
    position: relative;
    top: 8px;
  }

  .buy-button-trio .buy-button:hover {
    transform: translateY(-5px);
  }
}

/* chunky-buttons
------------------------- */

.chunky-button {
  display: block;
  padding: 10px;
  margin-bottom: 10px;
  border-radius: 5px;
  text-decoration: none;
  line-height: 1;
}

.chunky-button:hover { text-decoration: none; }

.chunky-button--fill {
  background-image: linear-gradient(hsla(0, 0%, 0%, 0), hsla(0, 0%, 0%, 0.15));
}

.chunky-button__icon {
  margin-right: 10px;
}

.chunky-button__icon svg {
  width: 48px;
  height: 48px;
  vertical-align: bottom;
}

.chunky-button__text {
  display: inline-block;
}

.chunky-button__text__plain {
  display: block;
}

.chunky-button__text__strong {
  display: block;
  font-size: 1.4rem;
  font-weight: bold;
}

.chunky-button--outline {
  padding-top: 8px;
  padding-bottom: 8px;
  border: 2px solid;
}

/* commercial-license-agreement
------------------------- */

.commercial-license-agreement h3 {
  counter-increment: cla-h3;
  counter-reset: cla-part;
}

.commercial-license-agreement h3::before {
  content: counter(cla-h3) '.';
  margin-right: 0.25rem;
  color: #888;
  font-family: 'Texta', sans-serif;
}

.cla__part {
  counter-increment: cla-part;
}

.cla__part::before,
.cla__definitions-list li::before {
  content: counter(cla-h3) '.' counter(cla-part) '.';
  color: #888;
  margin-right: 0.25rem;
}

.cla__definitions-list {
  list-style: none;
  padding-left: 2.6rem;
}

.cla__definitions-list li {
  text-indent: -1.5rem;
  margin-bottom: 0.5rem;
  counter-increment: cla-definitions-item;
}

.cla__definitions-list li::before {
  content: counter(cla-h3) '.' counter(cla-definitions-item) '.';
}

/* duo
two columns for large devices
------------------------- */

.duo::after {
  content: '';
  display: block;
  clear: both;
}

.duo__cell {
  margin-bottom: 10px;
}

/* --- duo--legal --- */

.duo--legal__plain {
  padding: 0 0.8rem;
  background: #FAFAFA;
  color: #888;
}

.duo--legal--first .duo--legal__official::before,
.duo--legal--first .duo--legal__plain::before {
  display: block;
  padding-top: 0.5rem;
  font-size: 0.88rem;
  color: #888;
}

.duo--legal--first .duo--legal__official::before {
  content: 'Official legal copy';
}

.duo--legal--first .duo--legal__plain::before {
  content: 'Plain English';
}

@media screen and (min-width: 768px) {
  .duo__cell {
    float: left;
    width: 48.5%;
  }

  .duo__cell:first-child {
    margin-right: 3%;
  }

  .duo__cell--license-option p { margin-top: 0; }
}

/* example
------------------------- */

.example {
  margin: 40px 0;
}

.example__code pre { margin: 0 0 20px; }

/* edit-demo
------------------------- */

.edit-demo {
  clear: both;
  font-size: 0.92rem;
}

/* gh-button
------------------------- */

.gh-button {
  display: inline-block;
  background: none;
  border: none;
  color: #333;
  font-size: 1.1rem;
}

.gh-button__title,
.gh-button__stat {
  float: left;
  font-weight: bold;
  line-height: 20px;
  padding: 5px 10px;
  border: 1px solid #D5D5D5;
}

.gh-button__icon,
.gh-button .github-logo {
  height: 21px;
  fill: #333;
  display: inline-block;
  vertical-align: bottom;
}

.gh-button__title {
  background-color: #EEE;
  background-image: linear-gradient(#FCFCFC, #EEE);
  border-radius: 4px 0 0 4px;
}

.gh-button .github-logo {
  margin-right: 0.2em;
}

.gh-button__stat {
  border-left: 0;
  border-radius: 0 4px 4px 0;
  background: white;
}

.gh-button:hover { color: #333; }

.gh-button:hover .gh-button__title {
  background-color: #DDD;
  background-image: linear-gradient(#EEE, #DDD);
}

.gh-button:hover .gh-button__stat {
  color: #4078C0;
}

.gh-button:hover .gh-button__icon--star {
  fill: #4078C0;
}

/* shirt-promo
------------------------- */

.shirt-promo {
  margin: 40px 0;
}

.shirt-promo__title {
  font-size: 1.6rem;
}

.shirt-promo__image {
  display: block;
  max-width: 100%;
  margin-bottom: 10px;
}

/* site-footer
------------------------- */

.site-footer {
  padding: 40px 0;
  margin-top: 60px;
}

.site-footer__copy {
  font-size: 1.2rem;
}

.site-footer .twitter-logo {
  width: 1.3rem;
  height: 1.3rem;
  vertical-align: middle;
}

/* showcase-item
------------------------- */

.showcase-item__link {
  display: block;
  padding: 10px;
  margin-bottom: 20px;
  border-radius: 8px;
  background: #DDD;
}

.showcase-item__link::after {
  content: '';
  display: block;
  clear: both;
}

.showcase-item__image {
  width: 80px;
  float: left;
  display: block;
}

.showcase-item__image svg {
  display: block;
  border-radius: 5px;
  width: 100%;
  height: auto;
}

.showcase-item__text {
  float: left;
  width: calc(100% - 120px);
  padding-left: 10px;
}

.showcase-item__title {
  margin: 0;
  font-size: 1.4rem;
}

.showcase-item__description {
  margin: 0;
}

@media screen and (min-width: 768px) {
  .showcase-item {
    float: left;
    width: 48.5%;
  }

  .showcase-item:nth-child(2n+1) {
    margin-right: 3%;
  }

  .showcase-item__image {
    width: 120px;
  }

  .showcase-item__text {
    padding-left: 20px;
  }

  .showcase-item__title {
    font-size: 2rem;
  }

  .showcase-item__description {
    font-size: 1.2rem;
    line-height: 1.2;
  }
}

/* showcase
------------------------- */

.showcase-item-list {
  padding: 0;
  list-style: none;
}

.showcase-item-list::after {
  content: '';
  display: block;
  clear: both;
}

.showcase-item .infinite-scroll-illo {
  padding: 5px;
}

.showcase__banner__image {
  display: block;
  max-width: 100%;
  margin-top: 10px;
  border-radius: 5px;
}

/* socks-promo
------------------------- */

.socks-promo {
  margin: 40px 0;
}

.socks-promo__image {
  display: block;
  max-width: 100%;
  border-radius: 5px;
}

.socks-promo .duo__cell { margin-bottom: 0; }

/* flickity-illo
------------------------- */

.flickity-illo { background: #ED0; }

/* infinite-scroll-illo
------------------------- */

.infinite-scroll-illo__page {
  stroke: #333;
  stroke-width: 20;
  stroke-miterlimit: 10;
}

.infinite-scroll-illo__page--back { fill: white; }
.infinite-scroll-illo__page--front1 { fill: #C25; }
.infinite-scroll-illo__page--front2 { fill: #E62; }
.infinite-scroll-illo__page--front3 { fill: #EA0; }

/* isotope-illo
------------------------- */

.isotope-illo { background: #222; }

/* base
------------------------- */