body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    width: 90%;
    text-align: center;
}

h1 {
    color: #333;
}

.flashcard {
    background-color: #e3f2fd;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}

#question {
    font-size: 1.2em;
    margin-bottom: 20px;
    text-align: center; /* Center the question text */
}

#answer-input {
    width: 80%;
    padding: 10px;
    font-size: 1em;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin-bottom: 10px;
}

.button-group {
    display: flex;
    justify-content: center;
    gap: 10px;
}

button {
    padding: 10px 20px;
    font-size: 1em;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    background-color: #4CAF50;
    color: white;
}

button:hover {
    background-color: #45a049;
}

#submit-btn, #quit-btn {
    border: 2px solid #333; /* Add border to Submit and Quit buttons */
}

#quit-btn {
    background-color: #f44336;
}

#quit-btn:hover {
    background-color: #d32f2f;
}

#save-wrong-btn, #save-scores-btn {
    background-color: #2196F3;
    margin: 10px;
}

#save-wrong-btn:hover, #save-scores-btn:hover {
    background-color: #1976D2;
}

#feedback {
    font-size: 1em;
    margin: 10px 0;
}

#score {
    font-size: 1.1em;
    font-weight: bold;
    margin: 10px 0;
}

#past-scores, #wrong-answers {
    margin: 20px 0;
}

ul {
    list-style: none;
    padding: 0;
}

li {
    margin: 5px 0;
}

@media (max-width: 600px) {
    .container {
        width: 95%;
        padding: 10px;
    }

    #question {
        font-size: 1em;
    }

    #answer-input {
        width: 90%;
    }

    button {
        padding: 8px 16px;
        font-size: 0.9em;
    }
}