* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
  }
  
  body {
	display: flex;
	justify-content: center;
	align-items: center;
	height: 100vh;
	background:#74ebd5;
	background:-webkit-linear-gradient(to right,#acb6e5,#74ebd5);
	background:linear-gradient(to right,#acb6e5,#74ebd5);
	flex-direction: column;
  }
  
  .section1 {
	display: grid;
	grid-template-rows: repeat(2, 8rem);
	grid-template-columns: repeat(4, 8rem);
	perspective: 800px;
	grid-gap: 2rem;
  }
  .section2 {
	display: grid;
	grid-template-rows: repeat(3, 8rem);
	grid-template-columns: repeat(4, 8rem);
	perspective: 800px;
	grid-gap: 2rem;
	display:none;
  }
  .section3 {
	display: grid;
	grid-template-rows: repeat(4, 8rem);
	grid-template-columns: repeat(4, 8rem);
	perspective: 800px;
	grid-gap: 2rem;
	display:none;
  }
  
  .back,.back2,.back3 {
	background-color: white;
	backface-visibility: hidden;
  }
  
  .face,.face2,.face3,
  .back,.back2,.back3 {
	position: absolute;
	width: 100%;
	height: 100%;
	pointer-events: none;
  }
  
  .card,.card2,.card3 {
	transform-style: preserve-3d;
	position: relative;
	transition:all 2s cubic-bezier(0.175,0.885,0.32,1.275);
	box-shadow:rgba(0,0,0,0.2) 0px 5px 15px;
  }
  
  .toggleCard {
	transform: rotateY(180deg);
  }
  .face,.face2,.face3{
	  transform: rotateY(-180deg)
  }

  .menu-box {
	position: fixed;
	z-index: 100;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%) scale(0.9);
	box-shadow: 0 0 60px 10px rgba(0, 0, 0, 0.5);
	transition: all 0.3s ease;
	padding: 25px 20px;
	border-radius: 5px;
	max-width: 400px;
	width: 100%;
	display: none;
	text-align: center;
	background: #fff;
  }

  .overlay {
	z-index: 50;
	display: none;
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, 0.6);
	overflow: hidden;
  }

  .open {
	display: block;
  }

  .menu-box .text {
	font-size: 30px;
	font-weight: 500;
	display: flex;
	justify-content: center;
  }
  
  .menu-box .text {
	font-weight: 600;
	margin: 0 5px;
  }
  
  .menu-box .btn1,.menu-box .btn2,.menu-box .btn3 {
	width: 100%;
	margin-top: 25px;
	display: flex;
	justify-content: center;
  }

  .btn1 button,.btn2 button,.btn3 button {
	font-size: 18px;
	font-weight: 500;
	padding: 8px 20px;
	border: 2px solid #0033cc;
	border-radius: 50px;
	background-color: #fff;
	color: #000;
	outline: none;
	cursor: pointer;
	transition: all 0.3s ease;
  }

  .btn1 button:hover,.btn2 button:hover,.btn3 button:hover {
	background-color: #0033cc;
	color: white;
  }

  .menu{
	background-color: transparent;
	font-size: 25px;
	margin-left: -19vw;
	position:relative;
	display:block;
	border:none;
	cursor:pointer;
  }

  @media (max-width: 767px) {
	.section1 {
      grid-template-rows: repeat(2, 4rem);
	  grid-template-columns: repeat(4, 4rem);
	}
	.section2{
		grid-template-rows: repeat(3, 4rem);
		grid-template-columns: repeat(4, 4rem);
		}
		.section3{
			grid-template-rows: repeat(4, 4rem);
			grid-template-columns: repeat(4, 4rem);
			}
  }
  @media (max-width:912px) {
	.menu{
		margin-top:-15vh;
		margin-left:-40vw;
	}
  }