body {
    font-family: 'Arial', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f2f5;
}

.container {
    text-align: center;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #1a73e8;
}

.input-group {
    margin-top: 20px;
}

input {
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
    outline: none;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    background-color: #1a73e8;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-left: 10px;
}

button:hover {
    background-color: #1557b0;
}

#greetingMessage {
    margin-top: 30px;
    color: #333;
    min-height: 1.2em;
}