/**
 * Footer CSS
 * Modern footer design với design system
 *
 * @package Strongbody_Theme
 */

/* Footer Container */
.site-footer {
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border-primary);
    color: var(--color-text-primary);
    margin-top: auto;
    position: relative;
    z-index: 10;
}

/* Footer Content */
.footer-content {
    padding: var(--space-12) 0 var(--space-6);
    max-width: 1400px;
    margin: 0 auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

/* Footer Grid Layout */
.footer-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

/* Footer Column */
.footer-column {
    display: flex;
    flex-direction: column;
}

/* Footer Logo */
.footer-logo {
    margin-bottom: var(--space-6);
}

.footer-logo img {
    max-width: 180px;
    height: auto;
}

/* Footer Title */
.footer-title {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-4);
    display: block;
}

/* Footer Description */
.footer-description {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-4);
}

/* Footer Links */
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--space-2);
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--text-base);
    transition: color var(--transition-fast);
}


/* Footer Social Links */
.footer-social {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.footer-social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}


/* Footer Contact */
.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.footer-contact-icon {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-contact-text {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: var(--line-height-relaxed);
}

.footer-contact-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}


/* Footer Newsletter */
.footer-newsletter {
    margin-top: var(--space-4);
}

.footer-newsletter-form {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.footer-newsletter-input {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--text-sm);
}

.footer-newsletter-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.footer-newsletter-submit {
    padding: var(--space-3) var(--space-4);
    background: var(--color-accent);
    color: var(--color-bg-primary);
    border: none;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-fast);
}


/* Footer Bottom */
.footer-bottom {
    border-top: 1px solid var(--color-border-primary);
    padding: var(--space-6) 0;
    margin-top: var(--space-8);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

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

.footer-legal-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}


/* ===== DARK MODE ===== */

:root.force-dark .site-footer,
@media (prefers-color-scheme: dark) .site-footer {
    background: var(--color-bg-primary);
    border-top-color: var(--color-border-primary);
    color: var(--color-text-primary);
}

:root.force-dark .footer-title,
@media (prefers-color-scheme: dark) .footer-title {
    color: var(--color-text-primary);
}

:root.force-dark .footer-description,
:root.force-dark .footer-contact-text,
:root.force-dark .footer-contact-link,
:root.force-dark .footer-links a,
:root.force-dark .footer-copyright,
:root.force-dark .footer-legal-links a,
@media (prefers-color-scheme: dark) .footer-description,
@media (prefers-color-scheme: dark) .footer-contact-text,
@media (prefers-color-scheme: dark) .footer-contact-link,
@media (prefers-color-scheme: dark) .footer-links a,
@media (prefers-color-scheme: dark) .footer-copyright,
@media (prefers-color-scheme: dark) .footer-legal-links a {
    color: var(--color-text-secondary);
}

:root.force-dark .footer-social-link,
@media (prefers-color-scheme: dark) .footer-social-link {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-primary);
    color: var(--color-text-secondary);
}

:root.force-dark .footer-newsletter-input,
@media (prefers-color-scheme: dark) .footer-newsletter-input {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-primary);
    color: var(--color-text-primary);
}

:root.force-dark .footer-bottom,
@media (prefers-color-scheme: dark) .footer-bottom {
    border-top-color: var(--color-border-primary);
}

/* ===== RESPONSIVE DESIGN ===== */

@media (max-width: 768px) {
    .footer-content {
        padding: var(--space-8) 0 var(--space-4);
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    .footer-layout {
        grid-template-columns: 1fr;
        gap: var(--space-6);
        margin-bottom: var(--space-6);
    }

    .footer-column {
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }

    .footer-newsletter-form {
        flex-direction: column;
    }

    .footer-bottom-content {
        flex-direction: column;
        gap: var(--space-3);
        text-align: center;
    }

    .footer-legal-links {
        justify-content: center;
        gap: var(--space-4);
    }
}

@media (max-width: 640px) {
    .footer-content {
        padding: var(--space-6) 0 var(--space-3);
        padding-left: var(--space-3);
        padding-right: var(--space-3);
    }

    .footer-layout {
        gap: var(--space-4);
        margin-bottom: var(--space-4);
    }

    .footer-bottom {
        padding: var(--space-4) 0;
        margin-top: var(--space-6);
    }

    .footer-legal-links {
        flex-direction: column;
        gap: var(--space-2);
    }
}

/* ===== FOOTER NAVIGATION ===== */
.footer-navigation {
    margin-bottom: var(--space-8);
}

.footer-menu-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}

.footer-section {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.footer-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary-500), var(--color-green-seller-600));
    opacity: 0;
    transition: opacity 0.3s ease;
}


.footer-section-title {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin: 0 0 var(--space-4) 0;
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.footer-section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    opacity: 0.3;
}

.footer-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-menu-item {
    position: relative;
    overflow: hidden;
}

.footer-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}


/* ===== FOOTER NAVIGATION DARK MODE ===== */
:root.force-dark .footer-section,
@media (prefers-color-scheme: dark) .footer-section {
    background: var(--color-bg-secondary);
}

:root.force-dark .footer-section-title,
@media (prefers-color-scheme: dark) .footer-section-title {
    color: var(--color-text-primary);
}

:root.force-dark .footer-link,
@media (prefers-color-scheme: dark) .footer-link {
    color: var(--color-text-secondary);
}

:root.force-dark .footer-link:hover,
@media (prefers-color-scheme: dark) .footer-link:hover {
    color: var(--color-accent);
    background: rgba(59, 130, 246, 0.1);
}

/* ===== FOOTER NAVIGATION RESPONSIVE ===== */
@media (max-width: 768px) {
    .footer-menu-sections {
        grid-template-columns: 1fr;
        gap: var(--space-4);
        margin-bottom: var(--space-4);
    }

    .footer-section {
        padding: var(--space-4);
    }

    .footer-section-title {
        font-size: var(--text-base);
        margin-bottom: var(--space-3);
    }

    .footer-link {
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-xs);
    }

}

@media (max-width: 640px) {
    .footer-navigation {
        margin-bottom: var(--space-6);
    }

    .footer-menu-sections {
        gap: var(--space-3);
    }

    .footer-section {
        padding: var(--space-3);
        border-radius: var(--radius-lg);
    }

    .footer-link {
        padding: var(--space-2);
        border-radius: var(--radius-md);
    }
}

/* ===== ACCESSIBILITY ===== */

@media (prefers-reduced-motion: reduce) {
    .footer-social-link,
    .footer-newsletter-submit {
        transition: none;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .site-footer {
        border-top: 2px solid var(--color-text-primary);
    }

    .footer-social-link {
        border: 2px solid var(--color-text-primary);
    }

    .footer-newsletter-input {
        border: 2px solid var(--color-text-primary);
    }
}