/* Footer */
footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: var(--space-xl) 0;
    margin-top: var(--space-2xl);
}

/* Footer Content */
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

/* Footer Left */
.footer-left {
    color: var(--text-color);
    opacity: 0.9;
}

/* Footer Right */
.footer-right {
    display: flex;
    gap: var(--space-lg);
}

/* Footer Links */
.footer-link {
    color: var(--text-color);
    text-decoration: none;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-base);
    position: relative;
}

.footer-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--space-sm);
    right: var(--space-sm);
    height: 2px;
    background: var(--accent-color);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--transition-base);
}

.footer-link:hover {
    color: var(--accent-color);
}

.footer-link:hover::after {
    transform: scaleX(1);
}

/* Social Links */
.social-links {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius-full);
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color);
    text-decoration: none;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 44px;
    height: 44px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    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 {
    background: var(--accent-blue);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--space-lg);
    }

    .footer-right {
        flex-direction: column;
        gap: var(--space-md);
    }

    .back-to-top {
        bottom: var(--space-md);
        right: var(--space-md);
    }
}

/* High Contrast Mode */
@media (forced-colors: active) {
    footer {
        border-top: 1px solid CanvasText;
    }

    .footer-link::after {
        background: CanvasText;
    }

    .social-link {
        border: 1px solid CanvasText;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .footer-link,
    .social-link,
    .back-to-top {
        transition: none;
    }

    .footer-link:hover::after {
        transition: none;
    }

    .social-link:hover,
    .back-to-top:hover {
        transform: none;
    }
}

/* Dark Theme Specific */
.dark-theme footer {
    background: var(--dark-main);
}

/* Light Theme Specific */
.light-theme footer {
    background: var(--light-main);
}