* {
  box-sizing: border-box;
  margin: 0px;
  font-family: 'Open Sans', sans-serif;
  font-weight: 300;
}

body {
  background: #ffffff url(img/geometry2.png);
  padding: 0px 10px;
}

h1 {
  color: #0f3c5e;
  font-size: 45px;
  text-align: center;
  margin: 15px;
}

h1 span {
  color: #006c5d;
}

.main-container {
  background: #0f3c5e36;
  border-radius: 5px;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  padding: 40px 0;
  margin: 10px auto;
  max-width: 980px;
}

main {
  display: grid;
  grid-template-columns: 2fr 5fr;
  padding: 20px;
}

.scoreboard {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  text-align: center;
  font-size: 2rem;
}

.restart {
  cursor: pointer;
}

#score {
  margin-left: 10px;
}

.restart {
  margin-top: 30px;
  font-size: 0.8rem;
}

.fa-redo {
  margin-right: 10px;
}

#cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(100px, 150px));
  grid-auto-rows: 1fr;
  grid-gap: 5px 5px;
}

#next-card {
  color: #0f3c5e;
  border: 1px solid black;
  background: white;
  font-size: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  width: 150px;
  height: 150px;
  margin: 15px auto;
}

.card {
  background-color: #0f3c5e;
  font-size: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  cursor: pointer;
}

.card.show {
  background-color: #006c5d;
  color: white;
}

#cards .card i {
  display: none;
}

#cards .card.show i, #cards .card.matched  i {
  display: block;
}

#cards .matched {
  background-color: #c3e76a;
  color: #2e3d49;
}

#cards::before {
  content: '';
  width: 0;
  padding-bottom: 100%;
  grid-row: 1 / 1;
  grid-column: 1 / 1;
}

#cards > *:first-child {
  grid-row: 1 / 1;
  grid-column: 1 / 1;
}