@import url('https://fonts.googleapis.com/css2? family= Roboto:wght@300 & display=swap');

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    font-family: 'Roboto', sans-serif;;
    display: flex;
    background: black;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container{
    position: relative;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    overflow: hidden;
    z-index: 10;
    backdrop-filter: blur(15px);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-left: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 5px 5px 30px rgba(0, 0, 0, 0.2) ;

}

.container .calculator{
    position: relative;
    display: grid;

}

.container .calculator .value{
    grid-column: span 4;
    height: 140px;
    width: 300px;
    text-align: right;
    border: none;
    outline: none;
    padding: 10px;
    font-size: 30px;
    background: transparent;
    color: #fff;

    border-bottom:  1px solid rgba(255, 255, 255, 0.05);
    border-right:  1px solid rgba(255, 255, 255, 0.05);
}

.container .calculator span{
    display: grid;
    place-items: center;
    width: 75px;
    height: 75px;
    color: #fff;
    font-weight: 400;
    cursor: pointer;
    font-size: 20px;
    user-select: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.container .calculator span:hover{
    transition: 0s;
    background: rgba(255, 255, 255, 0.05) ;
}

.container .calculator span:active{
    background: red;
    color: #192f00;
    font-weight: 500;
}

.container .calculator .clear{
   grid-column: span 2; 
   width: 150px;
   background: rgba(255, 255, 255, 0.05);
}

.container .calculator .plus{
    grid-row: span 2; 
    height: 150px;
 } 

 .equal{
     background: rgba(255, 255, 255, 0.05);
 }