body {
    background-color: #333;
    color: #fff;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background-color: #444;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    width: 300px;
    text-align: center;
}

h2 {
    margin-bottom: 20px;
    font-size: 24px;
}

label {
    display: block;
    text-align: left;
    margin-bottom: 5px;
    font-weight: bold;
}

input[type="text"], input[type="password"] {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #555;
    border-radius: 5px;
    background-color: #555;
    color: #fff;
}

button {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: #666;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #777;
}

p {
    color: red;
    margin-top: 10px;
}