/* Q&A Section Styles */
#qa-section {
    max-width: 100%;
    margin: 0;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    padding: 0;
}

.qa-item {
    margin-bottom: 1.5rem;
    background: var(--bg-primary);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.3s ease;
}

.qa-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.qa-question {
    font-weight: 600;
    cursor: pointer;
    padding: 1.25rem 1.5rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all 0.3s ease;
    position: relative;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.qa-question:hover {
    background: var(--bg-secondary);
}

.qa-question::after {
    content: '▼';
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.qa-item.active .qa-question::after {
    transform: translateY(-50%) rotate(180deg);
}

.qa-number {
    background: var(--primary-color);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.qa-answer {
    display: none;
    padding: 1.5rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.7;
    border-left: 4px solid var(--primary-color);
    position: relative;
}

.qa-item.active .qa-answer {
    display: block;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Dark mode styles */
.dark-mode .qa-item {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

.dark-mode .qa-question {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-bottom-color: var(--border-color);
}

.dark-mode .qa-question:hover {
    background: var(--bg-primary);
}

.dark-mode .qa-answer {
    background: var(--bg-primary);
    color: var(--text-primary);
    border-left-color: var(--accent-color);
}

/* Loading state */
.qa-loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.qa-loading::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
    margin-left: 0.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Empty state */
.qa-empty {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.qa-empty::before {
    content: '📚';
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .qa-question {
        padding: 1rem 1.25rem;
    }
    
    .qa-answer {
        padding: 1.25rem;
    }
    
    .qa-question::after {
        right: 1.25rem;
    }
}