:root {
            --primary-blue: #0056a6;
            --secondary-teal: #20b2aa;
            --accent-gold: #daa520;
            --dark-gray: #333333;
            --light-gray: #f8f9fa;
            --transition: all 0.3s ease-in-out;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            color: var(--dark-gray);
            line-height: 1.7;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--primary-blue);
        }
        .bg-primary-gradient {
            background: linear-gradient(135deg, var(--primary-blue) 0%, #003a75 100%);
        }
        .text-teal {
            color: var(--secondary-teal);
        }
        .btn-primary {
            background-color: var(--primary-blue);
            border-color: var(--primary-blue);
            padding: 0.75rem 2rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #004080;
            border-color: #004080;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,86,166,0.2);
        }
        .btn-outline-primary {
            color: var(--primary-blue);
            border-color: var(--primary-blue);
        }
        .btn-outline-primary:hover {
            background-color: var(--primary-blue);
            border-color: var(--primary-blue);
        }
        .hero-section {
            padding: 10rem 0 6rem;
            background: linear-gradient(rgba(0,86,166,0.85), rgba(0,86,166,0.9)), url('https://images.unsplash.com/photo-1559757148-5c350d0d3c56?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            color: white;
            position: relative;
        }
        .hero-section h1 {
            color: white;
            font-size: 3.5rem;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
        }
        .section-padding {
            padding: 6rem 0;
        }
        .section-title {
            position: relative;
            padding-bottom: 1.5rem;
            margin-bottom: 3rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--secondary-teal);
            border-radius: 2px;
        }
        .section-title.text-center::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .icon-box {
            background: white;
            padding: 2.5rem 2rem;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            height: 100%;
            transition: var(--transition);
            border-top: 4px solid var(--secondary-teal);
        }
        .icon-box:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.12);
        }
        .icon-box i {
            font-size: 2.5rem;
            color: var(--primary-blue);
            margin-bottom: 1.5rem;
        }
        .research-card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
            transition: var(--transition);
            height: 100%;
        }
        .research-card:hover {
            box-shadow: 0 15px 35px rgba(0,0,0,0.15);
            transform: translateY(-8px);
        }
        .research-card .card-img-top {
            height: 220px;
            object-fit: cover;
        }
        .news-item {
            padding: 1.5rem;
            border-left: 4px solid var(--secondary-teal);
            background: var(--light-gray);
            margin-bottom: 1.5rem;
            border-radius: 0 8px 8px 0;
            transition: var(--transition);
        }
        .news-item:hover {
            background: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            border-left-color: var(--primary-blue);
        }
        .flink {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            margin: 0.5rem;
            background: var(--light-gray);
            color: var(--dark-gray);
            border-radius: 6px;
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            border: 1px solid #dee2e6;
        }
        .flink:hover {
            background: var(--primary-blue);
            color: white;
            transform: scale(1.05);
            text-decoration: none;
        }
        .footer {
            background: var(--dark-gray);
            color: #ccc;
            padding-top: 4rem;
        }
        .footer a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .footer-logo {
            max-width: 250px;
            filter: brightness(0) invert(1);
            margin-bottom: 1.5rem;
        }
        .sticky-top {
            backdrop-filter: blur(10px);
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-blue) !important;
        }
        .nav-link {
            font-weight: 600;
            margin: 0 0.5rem;
            color: var(--dark-gray) !important;
            position: relative;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-blue) !important;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 5px;
            left: 50%;
            background-color: var(--primary-blue);
            transition: all 0.3s ease;
        }
        .nav-link:hover::after, .nav-link.active::after {
            width: 80%;
            left: 10%;
        }
        .stat-number {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--primary-blue);
            line-height: 1;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--primary-blue);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            text-decoration: none;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 1000;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: var(--secondary-teal);
            color: white;
            transform: translateY(-5px);
        }
        .timeline-item {
            position: relative;
            padding-left: 3rem;
            padding-bottom: 3rem;
            border-left: 2px solid var(--secondary-teal);
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -10px;
            top: 0;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--secondary-teal);
        }