@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&display=swap');

body {
    width: 600px;
    margin: 50px auto;
    font-family: 'Source Sans Pro', sans-serif;
    letter-spacing: 3px;
    font-size: 1.8rem;
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
	background-size: 400% 400%;
	animation: gradient 40s ease infinite;
	height: 100vh;
    font-family: 'Bebas Neue', cursive;

    backdrop-filter: blur(6rem);
    
  }
  @keyframes gradient {
	0% {
		background-position: 0% 50%;
	}
	50% {
		background-position: 100% 50%;
	}
	100% {
		background-position: 0% 50%;
	}
}
h1{
    text-align: center;
    letter-spacing: 1px;
    
}
.titre{
    padding : 1px;
    margin : 5px;
}
.titre:hover{
    transition-duration: 0.5s;
    box-shadow: 5px 5px 5px 5px rgba(0, 0, 0, 0.2);
    backdrop-filter: invert(80%);
}
.touche {
    width : 30px;
    padding: 1.1em 2em;
    background: none;
    border: 2px solid #fff;
    font-size: 30px;
    color: #131313;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
    border-radius: 12px;
    background-color: #ecd448;
    font-weight: bolder;
    box-shadow: 0 2px 0 2px #000;
   }
   
   .touche:before {
    content: "";
    position: absolute;
    width: 100px;
    height: 120%;
    background-color: #ff6700;
    top: 50%;
    transform: skewX(30deg) translate(-150%, -50%);
    transition: all 0.5s;
   }
   
   .touche:hover {
    background-color: #4cc9f0;
    color: #fff;
    box-shadow: 0 2px 0 2px #0d3b66;
   }
   
   .touche:hover::before {
    transform: skewX(30deg) translate(150%, -50%);
    transition-delay: 0.1s;
   }
   
   .touche:active {
    transform: scale(0.9);
   }
  
  
  
  .calculator{
    padding: 20px;
    text-align: center;
    background: linear-gradient(-45deg,#e73c7e,#23a6d5, #ee7752, #23d5ab);
	background-size: 400% 400%;
	animation: gradient 15s ease infinite;
	backdrop-filter: blur(6rem);
    
  
    -webkit-box-shadow: 20px 25px 40px 0px rgba(0, 0, 0, 0.2);
    box-shadow: 2px 2px 1px 1px rgba(0, 0, 0, 0.2);
    border-radius: 40px;
    
  }
  .calculator:hover{
    /*background: rgba(255, 255, 255, 0.5);*/
    transition-duration: 0.5s;
    backdrop-filter: blur(100px);
    box-shadow: 5px 5px 5px 5px rgba(0, 0, 0, 0.2);
  }
  
  .input {
    border: 1px solid #ddd;
    border-radius: 1px;
    height: 60px;
    padding-right: 15px;
    padding-top: 10px;
    text-align: right;
    margin-right: 6px;
    font-size: 2.5rem;
    overflow-x: auto;
    transition: all .2s ease-in-out;
    margin : 10px;
    
  }
  
  .input:hover {
    border: 1px solid #bbb;
    -webkit-box-shadow: inset 0px 1px 4px 0px rgba(0, 0, 0, 0.2);
    box-shadow: inset 0px 1px 4px 0px rgba(0, 0, 0, 0.2);
    
  }
  
  
  .operators div {
    display: inline-block;
    border: 1px solid #bbb;
    border-radius: 1px;
    width: 80px;
    text-align: center;
    padding: 10px;
    margin: 20px 4px 10px 0;
    cursor: pointer;
    background-color: #ddd;
    border-radius: 20px;
    transition: all 0.2s ease-in-out;
    
  }
  
  .operators div:hover {
    background-color: #ddd;
    -webkit-box-shadow: 0px 1px 4px 0px rgba(0, 0, 0, 0.2);
    box-shadow: 0px 1px 4px 0px rgba(0, 0, 0, 0.2);
    border-color: #aaa;
    transform: translateY(-5px);
    
  }
  
  .operators div:active {
    font-weight: bold;
  }
  
  .leftPanel {
    display: inline-block;
  }
  
  .numbers div {
    display: inline-block;
    border: 1px solid #ddd;
    border-radius: 1px;
    width: 80px;
    text-align: center;
    padding: 10px;
    margin: 10px 4px 10px 0;
    cursor: pointer;
    background-color: #f9f9f9;
    border-radius: 20px;
    transition: all 0.2s ease-in-out;
  }
  
  .numbers div:hover {
    background-color: #56cbf5;
    -webkit-box-shadow: 0px 1px 4px 0px rgba(0, 0, 0, 0.2);
    box-shadow: 0px 1px 4px 0px rgba(0, 0, 0, 0.2);
    border-color: #56cbf5;
    transform: translateY(-5px);
   
  }
  
  .numbers div:active {
    font-weight: bold;
  }
  
  div.equal {
    display: inline-block;
    border: 1px solid #3079ED;
    border-radius: 1px;
    width: 17%;
    text-align: center;
    padding: 127px 10px;
    margin: 40px 6px 10px 0;
    vertical-align: top;
    cursor: pointer;
    color: #FFF;
    background-color: #4d90fe;
    transition: all .2s ease-in-out;
    border-radius: 20px;
  }
  
  div.equal:hover {
    background-color: #307CF9;
    -webkit-box-shadow: 0px 1px 4px 0px rgba(0, 0, 0, 0.2);
    box-shadow: 0px 1px 4px 0px rgba(0, 0, 0, 0.2);
    border-color: #1857BB;
    transform: translateY(-5px);
  }
  
  div.equal:active {
    font-weight: bold;
  }