body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background: url('./ruffini.jpeg') no-repeat center center fixed; 
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}
.container {
    text-align: center;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
}
.input-group {
    margin-bottom: 10px;
}
.input-group label {
    display: block;
    margin-bottom: 5px;
}
.input-group input {
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
}
button {
    padding: 10px 20px;
    background-color: #007BFF;
    color: white;
    border: none;
    cursor: pointer;
    margin-top: 10px;
}
button:disabled {
    background-color: #ccc;
}
#result {
    margin-top: 20px;
    font-weight: bold;
}
@media (max-width: 600px) {
    .container {
        padding: 10px;
    }
}

.title {
    text-decoration: none;
    color: black;
}