body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f4f4f4;
}
.container {
    max-width: 500px;
    margin: 50px auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.logo {
    width: 150px;
    margin-bottom: 20px;
}
input {
    width: 80%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}
button {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
}
button:hover {
    background-color: #218838;
}
#result {
    margin-top: 20px;
    font-weight: bold;
}