/**
 * Footer
 * Rodapé moderno com links e informações
 */

/* ========================================
   Footer
======================================== */
.site-footer {
    background: var(--color-secondary);
    color: var(--color-white);
    padding-top: var(--space-16);
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Footer Brand */
.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.footer-logo img {
    height: 40px;
    width: auto;
}

.footer-logo-text {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-white);
}

.footer-logo-text span {
    color: var(--color-primary);
}

.footer-description {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.footer-socials {
    display: flex;
    gap: var(--space-3);
}

.footer-socials a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--color-white);
    transition: all var(--transition-base);
}

.footer-socials a:hover {
    background: var(--color-primary);
    transform: translateY(-3px);
}

/* Footer Column */
.footer-column h4 {
    font-family: var(--font-heading);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-5);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
}

/* Footer Contact */
.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.footer-contact-item svg {
    flex-shrink: 0;
    color: var(--color-primary);
    margin-top: 2px;
}

.footer-contact-item span,
.footer-contact-item a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.5;
}

.footer-contact-item a:hover {
    color: var(--color-primary);
}

/* Footer Bottom */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6) 0;
}

.footer-copyright {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.5);
}

.footer-copyright a {
    color: var(--color-primary);
}

.footer-legal {
    display: flex;
    gap: var(--space-6);
}

.footer-legal a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--color-white);
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: var(--z-sticky);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

@media (max-width: 1024px) {
    .footer-main {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-brand {
        grid-column: span 2;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .footer-main {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .footer-brand {
        grid-column: span 1;
        text-align: center;
    }
    
    .footer-socials {
        justify-content: center;
    }
    
    .footer-column {
        text-align: center;
    }
    
    .footer-links {
        align-items: center;
    }
    
    .footer-contact {
        align-items: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
    
    .footer-legal {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .back-to-top {
        bottom: var(--space-4);
        right: var(--space-4);
        width: 44px;
        height: 44px;
    }
}