html {
  box-sizing: border-box;
}

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

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  background: #ffffff url('../img/geometry2.png');
 /* Background pattern from Subtle Patterns */
  font-family: 'Coda', cursive;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

h1 {
  font-family: 'Open Sans', sans-serif;
  font-weight: 300;
}

/*
 * Styles for the deck of cards
 */

.deck {
  width: 660px;
  min-height: 680px;
  background: linear-gradient(160deg, #02ccba 0%, #aa7ecd 100%);
  padding: 32px;
  position: relative;
  border-radius: 10px;
  box-shadow: 12px 15px 20px 0 rgba(46, 61, 73, 0.5);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  margin: 0 0 3em;
}

.deck .card {
  height: 125px;
  width: 125px;
  background: #2e3d49;
  font-size: 0;
  color: #ffffff;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 5px 2px 20px 0 rgba(46, 61, 73, 0.5);
}

.deck .card.open {
  transform: rotateY(0);
  background: #02b3e4;
  cursor: default;
}

.deck .card.show {
  font-size: 33px;
}

.deck .card.match {
  cursor: default;
  background: #02ccba;
  font-size: 33px;
}

/* styles for modal */
.modal {
  display: none;
  z-index: 1;
  position: absolute;
  width: 50%;
  height: 40%;
  background-color: #bf619b;
  border-radius: 30px;
  border: 1px solid white;
  color: #fff;
  font: bold .8em Arial, sans-serif;
  text-transform: uppercase;
}

#modalText, .modalBtn {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1em;
}
/*
 * Styles for the Score Panel
 */
  .score-panel {
    text-align: left;
  width: 345px;
  margin-bottom: 10px;
}

.score-panel .stars {
  margin: 0;
  padding: 0;
  display: inline-block;
  margin: 0 5px 0 0;
}

.score-panel .stars li {
  list-style: none;
  display: inline-block;
}

.score-panel .restart {
  float: right;
  cursor: pointer;
}


/* ********styles for media 712px & under ****/
@media only screen and (max-width: 712px) {
  .score-panel {
    width: 80%;
    font-size: .9em;
  }

  .deck {
    width: 95%;
    min-height: 100vw;
    padding: 1em;
  }

  .deck .card {
    width: 20vw;
    height: 20vw;
  }

  .modal {
    width: 80vw;
    height: 50%;
    top: 22%;
    left: auto;
  }
}