* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    background-color: grey;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
.container {
    width: 100%;
    max-width: 350px;
    border: 2px solid black;
    background-color:  rgba(128, 128, 128, 0.39);
    padding: 30px 25px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    border-radius: 20px;
}
.container h2 {
    font-size: 25px;
    text-align: center;
    margin-bottom: 10px;
}
.container input {
    width: 100%;
    height: 35px;
    padding: 6px 10px;
    margin-top: 10px;
    margin-bottom: 15px;
}
.container button  {
    width: 100%;
    font-size: 16px;
    font-weight: light;
    padding: 5px 10px;
    margin-top: 10px;
    margin-bottom: 10px;
    background-color:  rgb(127, 208, 255);
    border-radius: 5px;
    border: none;
    outline: none;
    color: rgba(0, 0, 0, 0.87);
}
.container button:hover {
    background-color: blue;
}
.container p{
    text-align: center;
    margin-top: 15px;
}
.container a {
    text-decoration: none;
    color: blue;
}
.container a:hover {
    color: red;
}
.back a {
    text-decoration: none;
    color: white;
    font-size: 22px;
    font-weight: bold;
    text-align: center;
}
#result {
    font-size: 18px;
    margin-top: 10px;
    margin-bottom: 10px;
}