:root {
            --iiser-primary: #0a2463;
            --iiser-secondary: #247ba0;
            --iiser-accent: #ff9f1c;
            --iiser-light: #f8f9fa;
            --iiser-dark: #1e2a47;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            color: #333;
            line-height: 1.6;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--iiser-primary);
        }
        .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');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 8rem 0;
            position: relative;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .section-title {
            color: var(--iiser-primary);
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 3rem;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--iiser-accent);
        }
        .section-title.text-center:after {
            left: 50%;
            transform: translateX(-50%);
        }
        .card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .card-icon {
            font-size: 2.5rem;
            color: var(--iiser-secondary);
            margin-bottom: 1rem;
        }
        .research-highlight {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            border-left: 5px solid var(--iiser-accent);
            padding: 2rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .faculty-card {
            border-top: 5px solid var(--iiser-secondary);
            overflow: hidden;
        }
        .faculty-img {
            height: 280px;
            object-fit: cover;
            width: 100%;
        }
        .news-card {
            border-left: 4px solid var(--iiser-primary);
        }
        .btn-iiser {
            background-color: var(--iiser-primary);
            color: white;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: 2px solid var(--iiser-primary);
        }
        .btn-iiser:hover {
            background-color: transparent;
            color: var(--iiser-primary);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(10, 36, 99, 0.2);
        }
        .btn-iiser-outline {
            background-color: transparent;
            color: var(--iiser-primary);
            border: 2px solid var(--iiser-primary);
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-iiser-outline:hover {
            background-color: var(--iiser-primary);
            color: white;
            transform: translateY(-3px);
        }
        footer {
            background-color: var(--iiser-dark);
            color: white;
            padding-top: 3rem;
        }
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s ease;
            display: block;
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: var(--iiser-accent);
            padding-left: 5px;
        }
        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255,255,255,0.1);
            border-radius: 50%;
            margin-right: 10px;
            transition: all 0.3s ease;
        }
        .social-icons a:hover {
            background-color: var(--iiser-accent);
            transform: translateY(-5px);
        }
        .flink {
            display: inline-block;
            background-color: white;
            padding: 10px 20px;
            border-radius: 8px;
            margin: 5px;
            border: 1px solid #eaeaea;
            transition: all 0.3s ease;
            text-decoration: none;
            color: var(--iiser-dark);
            font-weight: 500;
        }
        .flink:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            border-color: var(--iiser-accent);
            color: var(--iiser-primary);
        }
        .campus-image {
            height: 300px;
            object-fit: cover;
            width: 100%;
            border-radius: 12px;
            transition: transform 0.5s ease;
        }
        .campus-image:hover {
            transform: scale(1.03);
        }
        .stats-counter {
            font-size: 3rem;
            font-weight: 800;
            color: var(--iiser-primary);
            display: block;
            line-height: 1;
        }
        .stats-label {
            font-size: 1.1rem;
            color: #666;
        }
        .tab-content {
            padding: 2rem;
            background-color: white;
            border-radius: 0 0 12px 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .nav-tabs .nav-link {
            color: var(--iiser-dark);
            font-weight: 600;
            border: none;
            padding: 1rem 2rem;
            border-radius: 0;
            position: relative;
        }
        .nav-tabs .nav-link.active {
            color: var(--iiser-primary);
            background-color: transparent;
            border-bottom: 3px solid var(--iiser-accent);
        }
        .timeline {
            position: relative;
            padding-left: 30px;
            margin-left: 20px;
        }
        .timeline:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background-color: var(--iiser-secondary);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 30px;
        }
        .timeline-item:before {
            content: '';
            position: absolute;
            left: -36px;
            top: 5px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background-color: var(--iiser-accent);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--iiser-secondary);
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 5rem 0;
            }
            .stats-counter {
                font-size: 2.5rem;
            }
            .campus-image {
                height: 220px;
                margin-bottom: 20px;
            }
        }
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }