body {
    font-family: Arial, sans-serif;
    background: #f4f6f8;
    text-align: center;
    padding: 40px;
}

h1 {
    color: #333;
}

.start-box, #game {
    background: #fff;
    padding: 25px;
    width: 350px;
    margin: auto;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,.1);
}

input[type=text], input[type=number] {
    width: 90%;
    padding: 10px;
    margin: 10px 0;
}

button {
    padding: 10px 20px;
    background: #007bff;
    border: none;
    color: white;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
    background: #0056b3;
}

#speak {
    cursor: pointer;
    font-size: 18px;
    margin-bottom: 10px;
}

.correct {
    color: green;
    font-weight: bold;
}

.wrong {
    color: red;
    font-weight: bold;
}