.qa-section-header {
    text-align: center;
    margin-bottom: 15px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 17px;
}

.qa-section-header h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    padding-bottom: 8px;
    display: inline-block;
    padding-left: 15px;
    padding-right: 15px;
    border: none;
    border-bottom: none;
    position: relative;
}

.qa-section-header h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 1.5px;
    background-color: #ddd;
}

.qa-item {
    border: none;
    border-bottom: 1px solid #ddd;
    border-radius: 0;
    margin-bottom: 0;
    background: transparent;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.qa-item + .qa-item {
    border-top: none;
}

.qa-question {
    padding: 20px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.2s;
    border: none;
    background: transparent;
}

.qa-question-text {
    font-weight: bold;
    flex: 1;
    margin-left: 10px;
    font-size: 16px;
    text-align: center;
}

.qa-toggle-icon {
    font-size: 14px;
    transition: transform 0.35s ease;
}

.qa-item:has(.qa-answer.open) .qa-toggle-icon {
    transform: rotate(180deg);
}

/* Smooth expand/collapse using CSS grid trick */
.qa-answer {
    display: grid;
    grid-template-rows: 0fr;
    opacity: 0;
    transition: grid-template-rows 0.35s ease, opacity 0.35s ease;
}

.qa-answer.open {
    grid-template-rows: 1fr;
    opacity: 1;
}

.qa-answer-content {
    overflow: hidden;
    padding: 0 20px;
    font-size: 13px;
    line-height: 1.6;
    text-align: center;
    background: #ffffff17;
    border-top: 1px solid transparent;
    transition: padding 0.35s ease, border-color 0.35s ease;
}

.qa-answer.open .qa-answer-content {
    padding: 20px 20px;
    border-top-color: #eeeeeec4;
}

/* Mobile responsive adjustments */
@media (max-width: 600px) {
    .qa-section-header {
        margin-top: 35px;
        margin-bottom: 20px;
    }

    .qa-question {
        padding: 18px 15px;
    }

    .qa-answer-content {
        padding-left: 15px;
        padding-right: 15px;
    }

    .qa-answer.open .qa-answer-content {
        padding: 18px 15px;
    }

    .qa-question-text {
        font-size: 15px;
    }

    .qa-section-header h3 {
        font-size: 17px;
    }
}