:root {
            --iisc-blue: #0a2463;
            --iisc-gold: #d4af37;
            --iisc-light: #f8f9fa;
            --iisc-dark: #212529;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--iisc-dark);
            line-height: 1.6;
        }
        .navbar-brand {
            font-weight: 700;
            color: var(--iisc-blue) !important;
        }
        .nav-link {
            font-weight: 500;
            transition: color 0.3s ease;
        }
        .nav-link:hover {
            color: var(--iisc-gold) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(10, 36, 99, 0.85), rgba(10, 36, 99, 0.9)), url('https://images.unsplash.com/photo-1532094349884-543bc11b234d?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') no-repeat center center/cover;
            color: white;
            padding: 120px 0;
        }
        .section-title {
            color: var(--iisc-blue);
            border-bottom: 3px solid var(--iisc-gold);
            display: inline-block;
            padding-bottom: 10px;
            margin-bottom: 30px;
        }
        .card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .card-img-top {
            height: 200px;
            object-fit: cover;
        }
        .btn-iisc {
            background-color: var(--iisc-blue);
            color: white;
            padding: 10px 25px;
            border-radius: 30px;
            transition: background-color 0.3s ease, transform 0.2s ease;
        }
        .btn-iisc:hover {
            background-color: var(--iisc-gold);
            color: var(--iisc-dark);
            transform: scale(1.05);
        }
        footer {
            background-color: var(--iisc-dark);
            color: var(--iisc-light);
        }
        .friend-links a.flink {
            display: inline-block;
            margin: 5px 10px;
            padding: 8px 15px;
            background: var(--iisc-light);
            color: var(--iisc-blue);
            border-radius: 5px;
            text-decoration: none;
            transition: background 0.3s ease, color 0.3s ease;
        }
        .friend-links a.flink:hover {
            background: var(--iisc-gold);
            color: var(--iisc-dark);
        }
        .contact-info a {
            color: var(--iisc-gold);
            text-decoration: none;
        }
        .contact-info a:hover {
            text-decoration: underline;
        }
        .research-highlight {
            background: var(--iisc-light);
            padding: 30px;
            border-left: 5px solid var(--iisc-blue);
            margin-bottom: 20px;
        }
        .news-item {
            border-bottom: 1px solid #dee2e6;
            padding-bottom: 15px;
            margin-bottom: 15px;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .img-fluid {
            border-radius: 10px;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0;
            }
            .display-4 {
                font-size: 2.5rem;
            }
        }