/* Base reset */
* {
    margin: 0;
    padding: 0;
}

body {
    background-color: #f4f6f8;
    color: #222;
    padding: 0px;
}

.container {
    padding: 2%;
    max-width: 800px;
    margin: 2% auto;
    background-color: #ffffff;
    padding: 1.5rem;
    line-height: 1.6;
    border-radius: 8px;
}

h1 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
    font-size: 1rem;
}

/* Mobile adjustments */
@media (max-width: 600px) {
    h1 {
        font-size: 1.4rem;
    }

    .container {
        padding: 1rem;
    }
}

.qna details {
    border-bottom: 1px solid #ddd;
    padding: 0.75rem 0;
}

.qna summary {
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    position: relative;
    padding-right: 1.5rem;
}

.qna summary::after {
    content: "+";
    position: absolute;
    right: 0;
    font-size: 1.2rem;
}

.qna details[open] summary::after {
    content: "−";
}

.qna p {
    margin-top: 0.5rem;
    font-size: 0.95rem;
    color: #444;
}