/* FAQ Section */
.faq {
    background-color: var(--bg-white);
    padding: 5rem 0;
}

.faq-content {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--accent-color);
}

.faq-item.active {
    border-color: var(--accent-color);
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: var(--bg-light);
}

.faq-question:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: -3px;
}

.faq-icon {
    flex-shrink: 0;
    transition: transform 0.3s ease;
    color: var(--accent-color);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 1.5rem 1.5rem;
}

.faq-answer p {
    color: var(--text-dark);
    line-height: 1.8;
    margin: 0;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.back-to-top:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

/* WhatsApp Button */
.whatsapp-button {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: all 0.3s ease;
    text-decoration: none;
}

.back-to-top.visible ~ .whatsapp-button {
    bottom: 6rem;
}

.whatsapp-button:hover {
    background-color: #20BA5A;
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.whatsapp-button:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

/* Active Navigation Link */
.nav-link.active {
    color: var(--accent-color);
}

.nav-link.active::after {
    width: 100%;
    background-color: var(--accent-color);
}

/* SVG Icon Styling */
.operation-icon svg,
.expansion-icon svg {
    width: 100%;
    height: 100%;
    color: var(--accent-color);
}

.operation-icon {
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.expansion-icon {
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .back-to-top,
    .whatsapp-button {
        width: 50px;
        height: 50px;
        bottom: 1.5rem;
        right: 1.5rem;
    }
    
    .back-to-top.visible ~ .whatsapp-button {
        bottom: 5rem;
    }
    
    .faq-question {
        font-size: 1rem;
        padding: 1.25rem;
    }
    
    .faq-answer {
        padding: 0 1.25rem;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 1.25rem 1.25rem;
    }
}