/* Footer */
.footer {
    background: linear-gradient(135deg, #00447c 0%, #002a4d 100%);
    color: white;
    padding: 60px 0 0;
    margin-top: 80px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-section {
    padding: 0 10px;
}

.footer-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #fff;
    position: relative;
    padding-bottom: 10px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: #0088cc;
    border-radius: 2px;
}

.footer-description {
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 20px;
}

.footer-logo img {
    max-width: 150px;
    height: auto;
    filter: brightness(0) invert(1);
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-links a:hover {
    color: #0088cc;
    transform: translateX(5px);
}

.footer-links i {
    font-size: 0.9rem;
    width: 20px;
}

/* Contact Info */
.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-contact li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.85);
}

.footer-contact i {
    color: #0088cc;
    font-size: 1.1rem;
    width: 20px;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-contact a:hover {
    color: #0088cc;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: all 0.4s ease;
    text-decoration: none;
}

.social-icon:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.social-icon.facebook {
    background: #1877f2;
}

.social-icon.instagram {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
}

.social-icon.linkedin {
    background: #0077b5;
}

.social-icon.twitter {
    background: #1da1f2;
}

.social-icon.youtube {
    background: #ff0000;
}

/* Newsletter */
.newsletter {
    margin-top: 25px;
}

.newsletter h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: #fff;
}

.newsletter-form {
    display: flex;
    gap: 10px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.newsletter-form input:focus {
    outline: none;
    border-color: #0088cc;
    background: rgba(255, 255, 255, 0.15);
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.newsletter-form button {
    padding: 12px 20px;
    border: none;
    border-radius: 25px;
    background: #0088cc;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.newsletter-form button:hover {
    background: #006aa3;
    transform: scale(1.05);
}

/* Footer Bottom */
.footer-bottom {
    margin-top: 50px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom .footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    padding: 25px 20px;
}

.footer-bottom p {
    margin: 0;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-bottom-links {
    display: flex;
    gap: 15px;
    align-items: center;
    white-space: nowrap;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom-links a:hover {
    color: #0088cc;
}

.footer-bottom-links span {
    color: rgba(255, 255, 255, 0.4);
}

/* IEEE Official Links Bar */
.footer-ieee-links {
    padding: 14px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    justify-content: center;
}

.ieee-links-group {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.ieee-links-group a {
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    font-size: 0.8rem;
    transition: color 0.3s ease;
    white-space: nowrap;
}

.ieee-links-group a:hover {
    color: #0088cc;
}

.ieee-links-group span {
    color: rgba(255, 255, 255, 0.25);
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .footer-bottom .footer-container {
        flex-direction: column;
        text-align: center;
    }

    .footer-bottom-links {
        justify-content: center;
    }

    .ieee-links-group {
        gap: 8px;
    }

    .ieee-links-group a {
        font-size: 0.75rem;
    }
}
/* Responsive */
@media (max-width: 768px) {
    .footer {
        padding: 40px 0 0;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom .footer-container {
        flex-direction: column;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}