* {
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
    outline: 0;
    transition: all 0.5s ease;
}

body {
    font-family: sans-serif;
}



a {
    text-decoration: none;
    color: #fff;

}
body {
    
    
    background-image: linear-gradient(to bottom right,rgba(79,51,176,1),rgba(210,53,165)) ;
    box-shadow: brown;
    
   
    
}

.container{
    height: 100vh;
    width: 100vw;
    display: grid;
    place-items: center;

}
.calculator{
    position: relative;
    height: auto;
    width: auto;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 30px #000;

}
.theme-toggler{
    position: absolute;
    top: 30px;
    right: 30px;
    color: #fff;
    cursor: pointer;
    z-index: 1;
}
.theme-toggler.active{
    color: #333;
    
}
.theme-toggler.active::before{
    background-color: #fff;
}
.theme-toggler::before{
    content: '';
    height: 30px;
    width: 30px;
    position: absolute;
    top: 50%;
    transform: translate(-50% , -50%);
    border-radius: 50%;
    background-color: #333;
    z-index: -1;


}
#display{
    margin:0  10px;
    height: 150px;
    width: auto;
    max-width: 270px;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    font-size: 30px;
    margin-bottom: 20px;
    overflow-x: scroll;
}
#display::-webkit-scrollbar{
    display: block;
    height: 3px;
}
button {
    height: 60px;
    width: 60px;
    border: 0;
    border-radius: 30px;
    margin: 5px;
    font-size: 20px;
    cursor: pointer;
    transition: all 200ms ease;
}
button:hover{
    transform: scale(1.3);
}
button#equal{
    height: 130px;
}

 /* light  theme */
 .calculator{
    background-color: #fff;
    
 }
 .calculator #display{
    color: #0a1e23;
 }
 .calculator button#clear{
    background: color #ffd5d8; 
    color: #fc4552;
 }
 .calculator button.btn-number{
    background-color:#c3eaff ;
    color: #000;
 }
 .calculator button.button-operator{
    background: color #ffd0fd; 
    color: #f967f3;
 }
 .calculator button.button-equal{
    background-color: #adf9e7;
    color: #000;
 }

 /* dark theme */
 .calculator.dark{
    background-color: #071115; 
 }
 .calculator.dark #display{
    color: #f8fafd; 
    
 }

.calculator.dark button#clear{
    background-color: #2d191e;
    color: #bd3740;
}
.calculator.dark button.btn-number{
    background-color: #1b2f38;
    color: #f8fafb;
}

.calculator.dark button.button-operator{
    background-color: #2e1f39;
    color: #aa00a4;
}
.calculator.dark button.button-equal{
    background-color: #223323;
    color: #ffffff;
}