body {
    background: #f4f6fc;
    font-family: Arial, sans-serif;
}

.container {
    width: 95%;
    max-width: 600px;
    margin: 60px auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 20px #d3d3d3;
}

h1 {
    text-align: center;
    color: #3b3b98;
    margin-bottom: 20px;
}

#question-box h2 {
    font-size: 20px;
    margin-bottom: 20px;
}

.option {
    padding: 12px;
    background: #eef1ff;
    margin: 10px 0;
    border-radius: 6px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: 0.2s;
}

.option:hover {
    background: #d8ddff;
}

.correct {
    background: #c8f7c5 !important;
    border-color: #2ecc71;
}

.wrong {
    background: #ffcccc !important;
    border-color: #e74c3c;
}

#next-btn {
    padding: 12px 25px;
    background: #3b3b98;
    color: #fff;
    font-size: 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    margin-top: 20px;
    width: 100%;
}

.hidden {
    display: none;
}

#result-box {
    text-align: center;
}

#result-box button {
    background: #3b3b98;
    color: white;
    padding: 12px 25px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
}