@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@200..700&display=swap');

* {
  font-family: "Oswald", sans-serif;
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
}

body {
  margin: 0px;
}

.center {
  display: flex;
  justify-content: center;
}

#cards {
  border: 2px #187092 solid;
  border-radius: 24px;
  width: 600px;
  height: 400px;
  margin: auto;
  display: flex;
  flex-wrap: wrap;
}

.game-header {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
}

.game-header-wrapper {
  display: flex;
  justify-content: center;
}

#timer {
  text-align: center;
}
/* 
#difficulty-select {
  display: flex;
  justify-content: center;
} */

#difficulty-select p {
  text-align: center;
  padding: 0px;
  margin: 0px;
}

#difficulty-select div {
  margin-bottom: 24pt;
}

h1 {
  text-align: center;
}

button {
  width: 120px;
  padding: 12px;
  max-height: 48px;
  border-radius: 45px;
  background-color: #1bb0eb;
  color: white;
  font-weight: 400;
  font-size: 16px;
  border: none;
}

button:hover {
  cursor: pointer;
  background-color: #5ecbf7;
}

.header1 {
  display: flex;
  justify-content: space-between;
  padding: 12px;
}

h3 {
  margin: 0px;
  padding: 0px;
}

.message-box {
  background-color: #4ae284;
  border-radius: 12px;
  padding: 8px;
  display: none;
}

.sub {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card {
  width: 33.33%;
  position: relative;
  transition: transform 1s;
  perspective: 1000px;
  transform-style: preserve-3d;
}

img {
  width: 100%
}

.front_face,
.back_face {
  position: absolute;
  backface-visibility: hidden;
}

.flip {
  transform: rotateY(180deg);
}


.front_face {
  transform: rotateY(180deg);
}