style.css

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
     /*background-color: #c9d2d7;*/
    font-family: sans-serif;
    outline: none;
}

.container {
    background-image: url("abstract-luxury-gradient-blue-background-smooth-dark-blue-with-black-vignette-studio-banner.jpg");
    background-size: cover;
    background-position: center;
    position: relative;
    /*background-color: #c9d2d7;*/
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.calculator{
    background-color: #ecf0f3;
    padding: 15px;
    border-radius: 30px;
    box-shadow: inset 5px 5px 22px #ffffff, 
                     5px 5px 22px rgba(0,0,0,.3); 
                     
    display: grid;
    grid-template-columns: repeat(4 , 68px);
}

#calculator-label {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 14px; /* Adjust the font size as needed */
    color: #676767; /* Adjust the color as needed */
}


input{
    
    grid-column: span 4;
    height: 70px;
    width: 260px;
    background-color: #ecf0f3;
    box-shadow: inset -5px -5px 12px #ffffff, inset 5px 5px 12px rgba(0,0,0,.16);
    border: none;
    border-radius: 20px;
    color: rgba(70,70,70);
    font-size: 50px;
    text-align: end;
    margin: auto;
    margin-top: 40px;
    margin-bottom: 30px;
    padding: 20px;
}  

button{
    height: 48px;
    width: 48px;
    background-color: #ecf0f3;
    box-shadow: -5px -5px 12px #ffffff, 5px 5px 12px rgba(0,0,0,.16);
    border: none;
    border-radius: 30%;
    margin: 8px;
    font-size: 16px; 
    transition: box-shadow 0.3s ease;
}

button:hover{
    box-shadow: 0 0 10px #0ef;

}

.calculator span{
    color: rgb(2, 110, 2);
    font-weight: 300;
}


.equal{
    width: 115px;
    border-radius: 40px;
    font-weight: 800;
    color: rgb(218, 155, 10);
    background-color: #ecf0f3;
    box-shadow: -5px -5px 12px #ffffff,  5px 5px 12px rgba(0,0,0,.16);

}

.footer p{
    display: flex;
    justify-content: center;
    font-size: .8rem;
    color: #777a7b;
    background: transparent;
    transform: translateY(-70px);
}