*{
    box-sizing: border-box;
    margin: 0;
    font-family:sans-serif;
}
body{
    background: rgb(226, 226, 226);
    padding: 5%;
    display: flex;
}

.container{
    margin:auto;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 5%;
    background: white;
    box-shadow: 1px 2px 20px rgb(180, 180, 180);
    border-radius:5px ;
    gap:20px;
    font-size: 1rem;
    flex: 1;
}

.container .heading{
    font-weight: 600;
    align-self: center;
}
.container .prompt{
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap:20px;
}

.container input{
    width: 250px;
    border:1px rgb(173, 173, 173) double;
    padding:6px;
    border-radius: 5px;
}
.container input:active,
.container input:focus {
    border-color: blue;
}

.container button{
    background-color: rgb(0, 45, 248);
    color:white;
    border:none;
    padding:10px;
    font-size: 0.9rem;
    border-radius: 5px;
    cursor: pointer;
    transition: 0.3s ease;
    margin-top: 10px;
}
.container .calculate.disabled{
    background-color: #ccc;
    cursor: not-allowed;
}
.container button:hover{
    background-color:rgb(0, 31, 168);

}
.container .total{
    font-size: 20px;
}