/*! 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.
 */
@import url("https://fonts.googleapis.com/css?family=Fira+Code:400,600&display=swap&subset=latin-ext");
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.
 */
main {
  display: block; }

/**
 * Correct the font size and margin on `h1` elements within `section` and
 * `article` contexts in Chrome, Firefox, and Safari.
 */
h1 {
  font-size: 2em;
  margin: 0.67em 0; }

/* Grouping content
   ========================================================================== */
/**
 * 1. Add the correct box sizing in Firefox.
 * 2. Show the overflow in Edge and IE.
 */
hr {
  -webkit-box-sizing: content-box;
          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 */
  -webkit-text-decoration: underline dotted;
          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 {
  -webkit-box-sizing: border-box;
          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"] {
  -webkit-box-sizing: border-box;
          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; }

label {
  cursor: pointer;
  display: inline-block;
  padding: 1rem 2rem;
  margin: 0; }

input[type="radio"] {
  display: none;
  margin: 0;
  width: 0;
  padding: 0; }

label + input[type="radio"] + label {
  border-left: 1px solid; }

input[type="radio"]:checked + label {
  background: white;
  color: black; }

html {
  -webkit-box-sizing: border-box;
          box-sizing: border-box; }
  @media (max-width: 760px) {
    html {
      font-size: 14px; } }
  @media (max-width: 760px) {
    html {
      font-size: 12px; } }

*,
*:before,
*:after {
  -webkit-box-sizing: inherit;
          box-sizing: inherit; }

body {
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: 1fr minmax(300px, 1400px) 1fr;
  grid-template-columns: 1fr minmax(300px, 1400px) 1fr;
  grid-template-rows: 1fr 2fr 1fr;
  -ms-grid-rows: auto auto;
      grid-template: ". header ." ". main ." ". footer .";
  height: 100vh;
  background: #171717;
  color: white;
  font-family: "Fira Code", monospace; }
  @media (max-width: 760px) {
    body {
      -ms-grid-columns: 1fr;
      grid-template-columns: 1fr;
      -ms-grid-rows: auto auto;
          grid-template: "header" "main" "footer"; } }

.board {
  padding: 1rem;
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: (1fr)[4];
  grid-template-columns: repeat(4, 1fr);
  -ms-grid-rows: (1fr)[4];
  grid-template-rows: repeat(4, 1fr);
  grid-gap: 1rem; }
  @media (max-width: 760px) {
    .board--easy {
      margin-top: 5rem;
      -ms-grid-columns: (1fr)[2];
      grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 760px) {
    .board--medium {
      -ms-grid-columns: (1fr)[3];
      grid-template-columns: repeat(3, 1fr); } }
  @media (max-width: 760px) {
    .board--hard {
      -ms-grid-columns: (1fr)[4];
      grid-template-columns: repeat(4, 1fr); } }
  @media (max-width: 380px) {
    .board--hard > .card {
      height: 5.25rem;
      width: 5.25rem; } }
  @media (max-width: 340px) {
    .board--hard > .card {
      height: 4.5rem;
      width: 4.5rem; } }

.card {
  border-radius: 2px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  font-size: 2rem;
  background-color: #5C5C5C;
  height: 6.25rem;
  width: 6.25rem; }
  .card--hidden {
    opacity: 0; }

.card-reverse {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  font-size: 2rem;
  min-height: 10px;
  min-width: 10px; }
  .card-reverse--0, .card-reverse--1 {
    background-color: greenyellow; }
  .card-reverse--2, .card-reverse--3 {
    background-color: blue; }
  .card-reverse--4, .card-reverse--5 {
    background-color: hotpink; }
  .card-reverse--6, .card-reverse--7 {
    background-color: brown; }
  .card-reverse--8, .card-reverse--9 {
    background-color: orangered; }
  .card-reverse--10, .card-reverse--11 {
    background-color: green; }
  .card-reverse--12, .card-reverse--13 {
    background-color: purple; }
  .card-reverse--14, .card-reverse--15 {
    background-color: orange; }

.footer {
  -ms-grid-row: 3;
  -ms-grid-column: 2;
  grid-area: footer;
  margin: 0 auto;
  width: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: end;
      -ms-flex-align: end;
          align-items: flex-end;
  padding: 1rem; }
  .footer__container {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    width: 100%; }
  .footer__description {
    margin: 0; }
  .footer__image {
    height: 1.5rem;
    width: 1.5rem; }
  @media (max-width: 760px) {
    .footer {
      padding: 2rem; } }

.header {
  -ms-grid-row: 1;
  -ms-grid-column: 2;
  grid-area: header;
  position: relative;
  padding-top: 1rem;
  text-align: center;
  font-size: 2rem; }
  .header__container {
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center; }
  .header__heading {
    margin: 0;
    font-size: 3rem;
    line-height: 3.5rem; }
  .header__pairs-counter {
    font-size: 2.5rem; }
  .header__exit {
    display: inline;
    text-decoration: none;
    color: white;
    position: absolute;
    top: 1.5rem;
    right: 2rem; }
    .header__exit::before {
      content: "";
      position: absolute;
      height: 3rem;
      width: 2px;
      background: white;
      -webkit-transform: rotate(45deg);
          -ms-transform: rotate(45deg);
              transform: rotate(45deg); }
      @media (max-width: 760px) {
        .header__exit::before {
          width: 1px; } }
    .header__exit::after {
      content: "";
      position: absolute;
      height: 3rem;
      width: 2px;
      background: white;
      -webkit-transform: rotate(-45deg);
          -ms-transform: rotate(-45deg);
              transform: rotate(-45deg); }
      @media (max-width: 760px) {
        .header__exit::after {
          width: 1px; } }
    @media (max-width: 760px) {
      .header__exit {
        right: 3rem; } }

.hidden {
  display: none; }

.main {
  -ms-grid-row: 2;
  -ms-grid-column: 2;
  grid-area: main;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  max-height: 100vh; }

@media (max-width: 760px){
    .footer {
    -ms-grid-row: 3;
    -ms-grid-column: 1; }
    .header {
    -ms-grid-row: 1;
    -ms-grid-column: 1; }
    .main {
    -ms-grid-row: 2;
    -ms-grid-column: 1; } }

.start-button {
  background: white;
  border: none;
  padding: 1rem 4rem; }
  .start-button--hidden {
    display: none; }

.scoreboard__heading {
  text-align: center;
  font-size: 1.5rem;
  font-weight: normal; }

.set-level__container {
  border: 1px solid white;
  display: inline-block;
  margin: 20px;
  overflow: hidden; }

.set-level__heading {
  text-align: center;
  font-size: 1.5rem; }

.user__submit-button {
  margin: 2rem auto;
  display: block;
  background: white;
  border: none;
  padding: 1rem 4rem; }

/*# sourceMappingURL=main.css.map */