body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    max-width: 400px;
    width: 100%;
    text-align: center;
}

h1 {
    color: #333;
    margin-bottom: 1rem;
}

p {
    color: #666;
    margin-bottom: 2rem;
}

form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

input {
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

button {
    padding: 0.8rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
}

button:hover {
    background-color: #0056b3;
}

.button {
    display: inline-block;
    padding: 0.8rem;
    background-color: #28a745;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    text-align: center;
    cursor: pointer;
}

.button:hover {
    background-color: #218838;
}

.hidden {
    display: none;
}

#message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 4px;
}