/* Footer Component - Modern Corporate Design */
/* Based on BEM methodology and corporate design principles */

/* Import variables */
@import '../variables.css';

/* Footer Container */
.footer {
    background: linear-gradient(135deg, var(--color-bg-darker) 0%, var(--color-bg-dark) 100%);
    color: var(--color-text-light);
    padding: var(--spacing-20) 0 var(--spacing-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    font-family: var(--font-family-primary);
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary-500), var(--color-secondary-500));
    box-shadow: 0 2px 8px rgba(0, 132, 230, 0.3);
}

.footer::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(0, 132, 230, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(147, 51, 234, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

/* Footer Container */
.footer__container {
    max-width: var(--container-7xl);
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

/* Footer Grid */
.footer__grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-12);
    margin-bottom: var(--spacing-12);
}

@media (min-width: 768px) {
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer__grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-8);
    }
}

/* Footer Brand Section */
.footer__brand {
    grid-column: 1 / -1;
}

@media (min-width: 768px) {
    .footer__brand {
        grid-column: span 2;
    }
}

@media (min-width: 1024px) {
    .footer__brand {
        grid-column: span 1;
    }
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-6);
    text-decoration: none;
}

.footer__logo-icon {
    font-size: 2.5rem;
    color: var(--color-primary-500);
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.footer__logo-text {
    font-family: var(--font-family-secondary);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.footer__description {
    color: var(--color-text-muted);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-6);
    font-size: var(--font-size-sm);
    max-width: 400px;
}

/* Footer Social */
.footer__social {
    display: flex;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-8);
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    color: var(--color-text-muted);
    text-decoration: none;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.footer__social-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 1;
}

.footer__social-link i {
    position: relative;
    z-index: 2;
    font-size: 1.2rem;
}

.footer__social-link:hover {
    transform: translateY(-3px);
    color: var(--color-text-light);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.footer__social-link:hover::before {
    opacity: 1;
}

/* Footer Column */
.footer__column {
    margin-bottom: var(--spacing-8);
    position: relative;
}

.footer__column::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.1), transparent);
    opacity: 0.5;
}

.footer__column:first-child::before {
    display: none;
}

@media (min-width: 1024px) {
    .footer__column::before {
        display: block;
    }
}

.footer__column-title {
    font-family: var(--font-family-secondary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-6);
    position: relative;
    padding-bottom: var(--spacing-3);
    letter-spacing: var(--letter-spacing-tight);
}

.footer__column-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary-500), var(--color-secondary-500));
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

.footer__column:hover .footer__column-title::after {
    width: 60px;
}

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

.footer__link-item {
    margin-bottom: var(--spacing-3);
}

.footer__link {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    padding: var(--spacing-2) 0;
    position: relative;
}

.footer__link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary-500), var(--color-secondary-500));
    transition: width var(--transition-base);
    border-radius: var(--radius-full);
}

.footer__link-icon {
    font-size: 0.8rem;
    color: var(--color-primary-500);
    transition: transform var(--transition-base);
}

.footer__link:hover {
    color: var(--color-text-light);
    padding-left: var(--spacing-4);
}

.footer__link:hover::before {
    width: 8px;
}

.footer__link:hover .footer__link-icon {
    transform: translateX(3px);
}

/* Footer Contact */
.footer__contact {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer__contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.footer__contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
    border-radius: var(--radius-lg);
    color: var(--color-text-light);
    font-size: 1rem;
    flex-shrink: 0;
}

.footer__contact-details {
    flex: 1;
}

.footer__contact-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-1);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
}

.footer__contact-value {
    display: block;
    color: var(--color-text-light);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.footer__contact-value:hover {
    color: var(--color-primary-500);
}

/* Footer Newsletter */
.footer__newsletter {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    margin-top: var(--spacing-8);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.footer__newsletter-title {
    font-family: var(--font-family-secondary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-3);
}

.footer__newsletter-description {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-4);
    line-height: var(--line-height-relaxed);
}

.footer__newsletter-form {
    display: flex;
    gap: var(--spacing-3);
}

.footer__newsletter-input {
    flex: 1;
    padding: var(--spacing-3) var(--spacing-4);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-text-light);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.footer__newsletter-input:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px rgba(0, 132, 230, 0.1);
}

.footer__newsletter-input::placeholder {
    color: var(--color-text-muted);
}

.footer__newsletter-button {
    padding: var(--spacing-3) var(--spacing-6);
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
    border: none;
    border-radius: var(--radius-lg);
    color: var(--color-text-light);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.footer__newsletter-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 132, 230, 0.2);
}

/* Footer Bottom */
.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: var(--spacing-8);
}

.footer__bottom-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-4);
}

@media (min-width: 768px) {
    .footer__bottom-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.footer__copyright {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    text-align: center;
}

.footer__legal {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.footer__legal-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer__legal-link:hover {
    color: var(--color-primary-500);
}

.footer__legal-separator {
    color: var(--color-text-muted);
    opacity: 0.5;
}

/* Footer Back to Top */
.footer__back-to-top {
    position: fixed;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
    border-radius: var(--radius-full);
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: var(--z-index-fixed);
    box-shadow: 0 4px 12px rgba(0, 132, 230, 0.3);
}

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

.footer__back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 132, 230, 0.4);
}

/* Footer Responsive */
@media (max-width: 767px) {
    .footer {
        padding: var(--spacing-12) 0 var(--spacing-6);
    }
    
    .footer__grid {
        gap: var(--spacing-8);
    }
    
    .footer__column {
        margin-bottom: var(--spacing-6);
    }
    
    .footer__newsletter-form {
        flex-direction: column;
    }
    
    .footer__back-to-top {
        width: 44px;
        height: 44px;
        bottom: var(--spacing-4);
        right: var(--spacing-4);
    }
}

/* Footer Dark Mode Enhancement */
@media (prefers-color-scheme: dark) {
    .footer {
        background: linear-gradient(135deg, #0a0a0a 0%, #121212 100%);
    }
    
    .footer__newsletter {
        background: rgba(255, 255, 255, 0.02);
    }
}

/* Footer Animation */
@keyframes footerFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.footer__column,
.footer__brand,
.footer__newsletter {
    animation: footerFadeIn 0.6s ease-out forwards;
}

.footer__column:nth-child(1) { animation-delay: 0.1s; }
.footer__column:nth-child(2) { animation-delay: 0.2s; }
.footer__column:nth-child(3) { animation-delay: 0.3s; }
.footer__brand { animation-delay: 0.4s; }
.footer__newsletter { animation-delay: 0.5s; }