/* Custom styles */
        :root {
            --primary: #004aad;
            --primary-light: #1e88e5;
            --primary-dark: #002855;
            --secondary: #28a745;
            --accent: #ff9800;
            --light: #f8f9fa;
            --dark: #212529;
        }
        
        body {
            font-family: 'Poppins', sans-serif;
            overflow-x: hidden;
            color: #444;
            line-height: 1.7;
        }
        
        h1, h2, h3, h4, h5, h6, .navbar {
            font-family: 'Montserrat', sans-serif;
        }
        
        /* Enhanced Navbar */
        .navbar {
            padding: 15px 0;
            background-color: white;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }
        
        .navbar-brand {
            font-weight: 700;
            color: var(--primary);
            transition: transform 0.3s ease;
        }
        
        .navbar-brand:hover {
            transform: scale(1.05);
        }
        
        .nav-link {
            color: var(--dark);
            font-weight: 500;
            margin: 0 12px;
            padding: 8px 0;
            position: relative;
            transition: all 0.3s ease;
        }
        
        .nav-link:before {
            content: "";
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 0;
            left: 0;
            background-color: var(--primary);
            visibility: hidden;
            transition: all 0.3s ease;
        }
        
        .nav-link:hover:before, .nav-link.active:before {
            visibility: visible;
            width: 100%;
        }
        
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        
        .university-logo {
            max-height: 70px;
            transition: transform 0.3s ease;
        }
        
        .university-logo:hover {
            transform: scale(1.05);
        }
        
        /* Enhanced Header */
        .page-header {
            background: linear-gradient(rgba(0, 74, 173, 0.8), rgba(0, 40, 85, 0.9)), url('https://images.unsplash.com/photo-1492684223066-81342ee5ff30?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 100px 0;
            color: white;
            text-align: center;
        }
        
        .page-header h1 {
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
        }
        
        .page-header h1:after {
            content: '';
            display: block;
            width: 80px;
            height: 4px;
            background: var(--accent);
            margin: 15px auto 0;
            border-radius: 2px;
        }
        
        .breadcrumb {
            background: rgba(255, 255, 255, 0.1);
            display: inline-flex;
            padding: 10px 20px;
            border-radius: 30px;
        }
        
        .breadcrumb-item, .breadcrumb-item a {
            color: white;
            font-weight: 500;
        }
        
        .breadcrumb-item.active {
            color: rgba(255, 255, 255, 0.7);
        }
        
        .breadcrumb-item + .breadcrumb-item::before {
            color: rgba(255, 255, 255, 0.7);
        }
        
        /* Section Heading */
        .section-heading {
            position: relative;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 50px;
            text-align: center;
            padding-bottom: 15px;
        }
        
        .section-heading:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            border-radius: 2px;
        }
        
        /* Gallery Filter */
        .gallery-filters {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .filter-btn {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
            padding: 10px 25px;
            margin: 5px 10px;
            border-radius: 50px;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .filter-btn:hover, .filter-btn.active {
            background: var(--primary);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 74, 173, 0.3);
        }
        
        /* Gallery Section */
        .gallery-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9f0f8 100%);
            position: relative;
            overflow: hidden;
        }
        
        .gallery-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(0, 74, 173, 0.05);
            z-index: 0;
        }
        
        .gallery-section::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -50px;
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: rgba(0, 74, 173, 0.05);
            z-index: 0;
        }
        
        /* Gallery Grid */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            position: relative;
            z-index: 1;
        }
        
        .gallery-item {
            position: relative;
            overflow: hidden;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            cursor: pointer;
            background: white;
        }
        
        .gallery-item:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }
        
        .gallery-item img {
            width: 100%;
            height: 250px;
            object-fit: cover;
            transition: all 0.5s ease;
        }
        
        .gallery-item:hover img {
            transform: scale(1.1);
        }
        
        .gallery-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(45deg, rgba(0, 74, 173, 0.8), rgba(30, 136, 229, 0.8));
            opacity: 0;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
        }
        
        .gallery-item:hover .gallery-overlay {
            opacity: 1;
        }
        
        .gallery-overlay i {
            color: white;
            font-size: 2rem;
            margin-bottom: 10px;
        }
        
        .gallery-overlay h5 {
            color: white;
            font-weight: 600;
            margin-bottom: 5px;
            text-align: center;
        }
        
        .gallery-overlay p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.9rem;
            text-align: center;
            margin: 0;
        }
        
        /* Gallery Categories */
        .gallery-item[data-category="conference"] {
            border-left: 5px solid var(--primary);
        }
        
        .gallery-item[data-category="venue"] {
            border-left: 5px solid var(--secondary);
        }
        
        .gallery-item[data-category="culture"] {
            border-left: 5px solid var(--accent);
        }
        
        .gallery-item[data-category="nature"] {
            border-left: 5px solid #17a2b8;
        }
        
        .gallery-item[data-category="campus"] {
            border-left: 5px solid #6f42c1;
        }
        
        .gallery-item[data-category="events"] {
            border-left: 5px solid #e83e8c;
        }
        
        /* Lightbox Modal */
        .lightbox-modal {
            display: none;
            position: fixed;
            z-index: 9999;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.9);
        }
        
        .lightbox-content {
            position: relative;
            margin: auto;
            padding: 20px;
            width: 90%;
            max-width: 1050px;
            top: 50%;
            transform: translateY(-50%);
        }
        
        .lightbox-image {
            width: 100%;
            height: auto;
            border-radius: 10px;
        }
        
        .lightbox-close {
            position: absolute;
            top: 15px;
            right: 35px;
            color: white;
            font-size: 40px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .lightbox-close:hover {
            color: var(--accent);
            transform: scale(1.1);
        }
        
        .lightbox-info {
            background: white;
            padding: 20px;
            border-radius: 0 0 10px 10px;
            text-align: center;
        }
        
        .lightbox-info h4 {
            color: var(--primary);
            margin-bottom: 10px;
        }
        
        .lightbox-info p {
            color: #666;
            margin: 0;
        }
        
        /* Stats Section */
        .stats-section {
            background: linear-gradient(135deg, var(--primary-dark), #051c3b);
            color: white;
            padding: 60px 0;
            text-align: center;
        }
        
        .stat-item {
            margin-bottom: 30px;
        }
        
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--accent);
            display: block;
        }
        
        .stat-label {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.9);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        
        /* Enhanced Footer */
        .footer {
            background: linear-gradient(135deg, var(--primary-dark), #051c3b);
            color: white;
            padding: 70px 0 20px;
            position: relative;
        }
        
        .footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 10px;
            background: linear-gradient(90deg, var(--primary-light), var(--primary), var(--primary-dark));
        }
        
        .footer-logo {
            max-height: 130px;
            margin-bottom: 20px;
            transition: all 0.3s ease;
            filter: brightness(0) invert(1);
        }
        
        .footer-logo:hover {
            transform: scale(1.05);
        }
        
        .footer-conference-logo {
            max-width: 250px;
            margin-bottom: 15px;
            color: white;
            font-size: 1.2rem;
            line-height: 1.4;
        }
        
        .footer-conference-logo .biotech {
            color: var(--primary-light);
            font-weight: bold;
        }
        
        .footer h4 {
            font-weight: 600;
            margin-bottom: 25px;
            padding-bottom: 15px;
            position: relative;
            font-size: 1.4rem;
            color: white;
        }
        
        .footer h4::after {
            content: '';
            position: absolute;
            display: block;
            width: 50px;
            height: 3px;
            background: var(--primary-light);
            bottom: 0;
            left: 0;
        }
        
        .footer-contact {
            display: flex;
            align-items: flex-start;
            margin-bottom: 20px;
            color: rgba(255, 255, 255, 0.8);
            transition: all 0.3s ease;
        }
        
        .footer-contact i {
            margin-right: 15px;
            color: var(--primary-light);
            font-size: 1.2rem;
            margin-top: 5px;
        }
        
        .footer-contact:hover {
            color: white;
            transform: translateX(5px);
        }
        
        .social-icons {
            margin-top: 25px;
        }
        
        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            color: white;
            border-radius: 50%;
            text-align: center;
            margin-right: 12px;
            transition: all 0.3s;
            font-size: 1.1rem;
        }
        
        .social-icons a:hover {
            background-color: var(--primary-light);
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-links li {
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.3s ease;
        }
        
        .footer-links li:last-child {
            border-bottom: none;
        }
        
        .footer-links li a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: all 0.3s ease;
            display: block;
        }
        
        .footer-links li a:hover {
            color: white;
            transform: translateX(5px);
            display: inline-block;
        }
        
        .footer-links li a i {
            margin-right: 10px;
            color: var(--primary-light);
        }
        
        .copyright {
            margin-top: 50px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.7);
            text-align: center;
        }
        
        .map-container {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            margin-top: 20px;
        }
        
        .map-container iframe {
            width: 100%;
            height: 200px;
            border: 0;
        }
        
        /* Responsive adjustments */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: white;
                padding: 20px;
                border-radius: 10px;
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
                margin-top: 15px;
            }
            
            .nav-link {
                margin: 5px 0;
            }
            
            .university-logo {
                max-height: 60px;
            }
            
            .gallery-grid {
                grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
                gap: 15px;
            }
        }
        
        @media (max-width: 767.98px) {
            .page-header {
                padding: 80px 0;
            }
            
            .page-header h1 {
                font-size: 2.5rem;
            }
            
            .section-heading {
                font-size: 1.8rem;
            }
            
            .gallery-section {
                padding: 60px 0;
            }
            
            .gallery-item img {
                height: 200px;
            }
            
            .filter-btn {
                margin: 5px;
                padding: 8px 20px;
                font-size: 0.9rem;
            }
            
            .stat-number {
                font-size: 2.5rem;
            }
        }
        
        /* Animation for gallery items */
        .gallery-item {
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 0.6s ease forwards;
        }
        
        .gallery-item:nth-child(1) { animation-delay: 0.1s; }
        .gallery-item:nth-child(2) { animation-delay: 0.2s; }
        .gallery-item:nth-child(3) { animation-delay: 0.3s; }
        .gallery-item:nth-child(4) { animation-delay: 0.4s; }
        .gallery-item:nth-child(5) { animation-delay: 0.5s; }
        .gallery-item:nth-child(6) { animation-delay: 0.6s; }
        
        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }