body{
    font-family: Arial, sans-serif;
    background-color: #4f4657;
    margin: 0;
    padding: 0;
}

.container{
    max-width: 500px;
    margin: 150px auto;
    padding: 20px;
    background-color: #252525;
    border-radius: 8px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.4);
}

h1{
    text-align: center;
    color: #ffffff;
    padding-bottom: 20px;
    margin-bottom: 30px;
    border-bottom: 2px solid #f2f2f2;
}

.input-group{
    margin-bottom: 20px;
}

.input-group label{
    display: block;
    margin-bottom: 10px;
    color: #ffffff;
    font-weight: bold;
}

.input-group input,
.input-group select{

    width: 94%;
    padding: 12px;
    font-size: 16px;
    border: 2px solid #c50752;
    border-radius: 5px;
    background-color: #252525;
    color: #ffffff;
}

.input-group select{
    width: 100%;
}


.input-group input::-webkit-outer-spin-button,
.input-group input::-webkit-inner-spin-button{
    -webkit-appearance: none;
}

.input-group input:focus,
.input-group select:focus{
    outline: none;
    border-color: #7e0541;
}

.result{
    margin-top: 30px;
    border-top: 2px solid #f2f2f2 ;
    padding-top: 20px;
}

.result h2{
    margin-bottom: 15px;
    color: #ffffff;
}

.result div{
    margin-bottom: 10px;
    color: #ffffff;
}

#calculateBtn{
    padding: 12px 20px;
    background-color: #c50752;
    border-radius: 5px;
    border: none;
    color: #ffffff;
    cursor: pointer;
    transition:   background-color 0.3s ease;
}

#calculateBtn:hover{
    background-color: #53031b;
}