@import url('https://fonts.googleapis.com/css?family=Open+Sans&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Diplomata+SC&display=swap');
body {
  background-image: url(img/webb-dark.png);
  background-repeat: repeat;
  font-family: 'Open Sans', sans-serif;
  text-align: center;
}

h1 {
    font-family: 'Diplomata SC', cursive, sans-serif;
    color: rgb(219, 208, 183);
    line-height: 1.1;
    padding: 6px 0px 0px 3px;
    font-stretch: extra-condensed;
    transform: scaleY(1.5);
    -webkit-transform: scaleY(1.5);
    -moz-transform: scaleY(1.5);
    -ms-transform: scaleY(1.5);
    -o-transform: scaleY(1.5);
    margin: 2px auto;
    font-weight: normal;
}

h2 {
    font-family: 'Diplomata SC', cursive, sans-serif;
    color: rgb(219, 208, 183);
    font-stretch: extra-condensed;
    transform: scaleY(1.5);
    padding-bottom: 2px;
    font-weight: normal;
}

.subtitle {
  display: inline-block;
}

.subtitle div {
  display: inline-block;
}

.subtitle img {
  max-height: 18px;
  padding: 0 1px;
}

.subtitle h2 {
  display: inline-block;
  vertical-align: 30%;
  margin: 0;
  padding: 0 2px;
}

.instructions {
  display: block;
  line-height: 1.2;
  color: white;
}

.container {
  display: flex;
  max-width: 800px;
  flex-flow: row wrap;
  justify-content: center;
  padding-top: 20px;
  margin: auto;
}

div.container>* {
  margin-bottom: 15px;
  margin-right: 15px;
  cursor: pointer;
}

.faceDown, .faceUp, .hidden {
   background-size: contain;
   width: 100%;
   height: 100%;
   position: absolute; 
  -webkit-backface-visibility: hidden; /* Safari */
  backface-visibility: hidden;
  -moz-backface-visibility: hidden;
  -ms-backface-visibility: hidden;
  -o-backface-visibility: hidden;
  outline: 1.5px solid rgb(27, 25, 22);
  outline-offset: -1.5px;
}

.faceDown {
  background-image: url(img/backside.jpg);
}

.hidden {
  visibility: hidden;
}

.flip-card {
  background-color: transparent;
  width: 175px;
  height: 227.69px;
  display: inline-block;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.7s;
  -webkit-transition: transform 0.7s;
  -moz-transition: transform 0.7s;
  -ms-transition: transform 0.7s;
  -o-transition: transform 0.7s;
  transform-style: preserve-3d;
}

.invisible {
  display: none;
}

.gameOver {
    font-family: 'Diplomata SC', cursive, sans-serif;
    color: rgb(111, 161, 226);
    font-size: 2vmax;
    font-stretch: extra-condensed;
    transform: scaleY(1.5);
    -webkit-transform: scaleY(1.5);
    -moz-transform: scaleY(1.5);
    -ms-transform: scaleY(1.5);
    -o-transform: scaleY(1.5);
    padding-top: 50px;
    padding-bottom: 15px;
    font-weight: normal;
}

.button {
  font-size: 18px;
  line-height: 1.2;
  color: white;
  margin-top: 20px;
  padding: 10px;
  background-color: transparent;
  border: 2px solid rgb(219, 208, 183);
  cursor: pointer;
  text-transform: uppercase;
}

input[type=number] {
  background-color: transparent;
  color: white;
  border: 1px solid white;
  border-radius: 5px;
}

/* up-down arrows (not displaying on mobile - to fix):*/

input[type=number]::-webkit-inner-spin-button, input[type=number]::-webkit-outer-spin-button {
  -webkit-appearance: "Always Show Up/Down Arrows";
  opacity: 1;
  -webkit-appearance: textfield;
  -moz-appearance: textfield;
  appearance: textfield;
  line-height: 1;
}

/*for responsive font size:*/

@media (min-width: 17.5em) {
  .instructions {
    font-size: calc(0.875rem + ((1vw - 0.175rem) * 0.2439));
    min-height: 0vw;
  }
  h1 {
    font-size: calc(1.25rem + ((1vw - 0.175rem) * 0.9146));
    min-height: 0vw;
  }
  h2 {
    font-size: calc(0.625rem + ((1vw - 0.175rem) * 0.4268));
    min-height: 0vw;
  }
}

@media (min-width: 120em) {
  .instructions {
    font-size: 1.125rem;
  }
  h1 {
    font-size: 2.1rem;
  }
  h2 {
    font-size: 1.0625rem;
  }
}

/* not displaying small card icons on small screens:*/

@media (max-width: 470px) {
  .subtitle div {
    display: none;
  }
}