$family-primary:       BlinkMacSystemFont, -apple-system, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell",
                       "Fira Sans", "Droid Sans", "Helvetica Neue", "Helvetica", "Arial", sans-serif !default;
$family-secondary:     BlinkMacSystemFont, -apple-system, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell",
                      "Fira Sans", "Droid Sans", "Helvetica Neue", "Helvetica", "Arial", sans-serif !default;
$family-mono:          monospace !default;
$body-background:      transparent !default;
$body-color:           $text !default;
$body-font-family:     $family-primary !default;
$body-font-size:       1em !default;
$body-font-weight:     400 !default;
$body-letter-spacing:  0 !default;
$body-line-height:     1.5em !default;
$doc-font-size:        15px !default;
$link-text-decoration: underline !default;
$link-outline:         none !default;

/* ---- Main ------------------------- */

  html {
    font-size: $doc-font-size;
    -webkit-text-size-adjust: 100%;
    -webkit-backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  body {
    background-color: $body-background;
    color: $body-color;
    font-family: $body-font-family;
    font-size: $body-font-size;
    font-weight: $body-font-weight;
    letter-spacing: $body-letter-spacing;
    line-height: $body-line-height;
    overflow-y: scroll;
  }
  html, body {
    height: 100%;
    margin: 0;
  }
  .preload * {
    animation-duration: 0s !important;
    -webkit-animation-duration: 0s !important;
  }
  a {
    color: $link;
    background-color: transparent; /* ie10 */
    text-decoration: $link-text-decoration;
    text-decoration-color: $link;
    transition: 0.13s ease;
  }
  a:hover {
    color: $link--hover;
    text-decoration-color: $link--hover;
  }
  a:focus {
    color: $link--focus;
    text-decoration-color: $link--focus;
    outline: $link-outline;
  }
  q,
  div,
  article,
  aside,
  details,
  figcaption,
  form,
  figure,
  footer,
  header,
  hgroup,
  main,
  menu,
  nav,
  section,
  summary {
    display: block;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
  }
  b, strong {
    font-weight: bolder;
  }
  h1 {
    font-size: 2em;
    margin: 0.67em 0;
  }
  hr {
    border: none;
    height: 0;
    border-bottom: 1px solid #f0f0f0;
    overflow: hidden;
  }
  img {
    border-style: none;
  }
  pre, code, kbd, samp {
    font-family: monospace, monospace;
    font-size: 0.9em;
  }
  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;
  }
  ul, ol, li {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

/* ---- Table ------------------------ */

  table,
  .table {
    border-collapse: collapse;
    border-spacing: 0;
    font-size: inherit;
  }
  .thead {
    display: table-header-group;
    vertical-align: middle;
    border-color: inherit;
  }
  .tbody {
    display: table-row-group;
    vertical-align: middle;
    border-color: inherit;
  }
  .tfoot {
    display: table-footer-group;
    vertical-align: middle;
    border-color: inherit;
  }
  .tr {
    display: table-row;
    vertical-align: inherit;
    border-color: inherit;
  }
  th,
  .th {
    padding: 0;
    display: table-cell;
    vertical-align: inherit;
    font-weight: bold;
    text-align: -internal-center;
  }
  td,
  .td {
    display: table-cell;
    vertical-align: inherit;
  }
  .td,
  .th {
    text-align: inherit;
  }
  td:not([align]),
  th:not([align]) {
    text-align: inherit;
  }

/* ---- Forms ------------------------ */

  form {
    margin: 0;
  }
  button,
  input,
  optgroup,
  select,
  textarea {
    font-family: inherit;
    font-size: 100%;
    line-height: 1.15;
    margin: 0;
  }
  button,
  input {
    overflow: visible;
  }
  button,
  select {
    text-transform: none;
  }
  button,
  [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;
  }
  [type="checkbox"],
  [type="radio"] {
    box-sizing: border-box; /* 1 */
    padding: 0; /* 2 */
  }
  [type="number"]::-webkit-inner-spin-button,
  [type="number"]::-webkit-outer-spin-button {
    height: auto;
  }
  [type="search"] {
  -webkit-appearance: textfield; /* 1 */
    outline-offset: -2px; /* 2 */
  }
  [type="search"]::-webkit-search-decoration {
    -webkit-appearance: none;
  }
  [hidden] {
    display: none;
  }
  input[type="search"]::-webkit-search-decoration,
  input[type="search"]::-webkit-search-cancel-button,
  input[type="search"]::-webkit-search-results-button,
  input[type="search"]::-webkit-search-results-decoration {
    -webkit-appearance: none;
  }
  input[type="date"],
  input[type="datetime-local"],
  input[type="time"],
  input[type="month"],
  input[type="week"] {
    &::-webkit-inner-spin-button {
      display: none;
    }
  }
  textarea {
    overflow: auto;
  }
  ::-webkit-file-upload-button {
    -webkit-appearance: button; /* 1 */
    font: inherit; /* 2 */
  }

/* ---- Selection -------------------- */

  ::-moz-selection {
    background: #5984FF;
    text-shadow: none;
    color: #fff;
    -webkit-text-fill-color: #fff !important;
  }
  ::selection {
    background: #5984FF;
    text-shadow: none;
    color: #fff;
    -webkit-text-fill-color: #fff !important;
  }
  ::-moz-selection {
    background: #5984FF;
    text-shadow: none;
    color: #fff;
    -webkit-text-fill-color: #fff !important;
  }