body {
    font-family: Arial, sans-serif;
    background-color: #f0f8ff;
    text-align: center;
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    background-color: #e0ffe0;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 350px;
    box-sizing: border-box;
}

h1 {
    font-size: 1.5em;
}

label, input, button, p {
    display: block;
    width: 100%;
    margin-bottom: 10px;
    font-size: 1.1em;
}

.buttons {
    display: flex;
    justify-content: space-between;
}

button {
    padding: 10px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.1em;
    flex: 1;
    margin: 0 5px;
}

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

#feedback {
    color: red;
    font-size: 1.1em;
}

#score {
    font-weight: bold;
    font-size: 1.1em;
}

button:disabled {
    background-color: #6c757d;
    cursor: not-allowed;
}