body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    color: #333;
}
.container {
    max-width: 800px;
    margin: 50px auto;
    padding: 20px;
    background: #fff;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}
h1 {
    color: #007BFF;
    text-align: center;
}
.username-status {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    border-bottom: 1px solid #ccc;
}
.username-status p {
    margin: 0;
}
.username-status .available {
    color: green;
}
.username-status .taken {
    color: red;
}