:root {
            --primary-blue: #0056b3;
            --secondary-teal: #008080;
            --dark-navy: #002147;
            --light-gray: #f8f9fa;
            --accent-gold: #d4af37;
        }
        body {
            font-family: 'Inter', sans-serif;
            color: #333;
            line-height: 1.7;
        }
        h1, h2, h3, h4, h5 {
            font-family: 'Source Serif Pro', serif;
            font-weight: 600;
            color: var(--dark-navy);
        }
        .hero-section {
            background: linear-gradient(rgba(0, 33, 71, 0.85), rgba(0, 33, 71, 0.9)), url('https://images.unsplash.com/photo-1532094349884-543bc11b234d?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 120px 0 100px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .card-hover {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
            border-radius: 10px;
            overflow: hidden;
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .btn-primary {
            background-color: var(--primary-blue);
            border-color: var(--primary-blue);
            padding: 10px 25px;
            border-radius: 5px;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: #004494;
            border-color: #004494;
            transform: translateY(-2px);
        }
        .research-card {
            border-left: 4px solid var(--secondary-teal);
            transition: all 0.3s;
        }
        .research-card:hover {
            background-color: #f0f8ff;
            transform: translateX(5px);
        }
        .footer {
            background-color: var(--dark-navy);
            color: #ddd;
        }
        .footer a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer a:hover {
            color: white;
        }
        .friendlink-container {
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            padding: 25px;
        }
        .flink {
            display: inline-flex;
            align-items: center;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            padding: 10px 20px;
            margin: 5px;
            transition: all 0.3s;
            color: #ddd;
            text-decoration: none;
        }
        .flink:hover {
            background-color: rgba(255, 255, 255, 0.15);
            color: white;
            transform: translateY(-3px);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--dark-navy) !important;
        }
        .nav-link {
            font-weight: 500;
            margin: 0 8px;
            position: relative;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            background: var(--secondary-teal);
            left: 50%;
            bottom: 0;
            transition: all 0.3s;
        }
        .nav-link:hover::after {
            width: 100%;
            left: 0;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-blue);
        }
        .publication-item {
            padding: 15px;
            border-bottom: 1px solid #eee;
            transition: background 0.3s;
        }
        .publication-item:hover {
            background-color: #f9f9f9;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0 60px;
            }
            .section-padding {
                padding: 50px 0;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }
        .contact-info {
            background-color: var(--light-gray);
            border-radius: 10px;
            padding: 25px;
            transition: transform 0.3s;
        }
        .contact-info:hover {
            transform: translateY(-5px);
        }