:root {
            --nu-primary: #0A2463;
            --nu-secondary: #D8315B;
            --nu-accent: #1E96FC;
            --nu-light: #FFFAFF;
            --nu-dark: #1B1B1E;
            --nu-success: #3E8914;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        .nu-bg-primary { background-color: var(--nu-primary) !important; }
        .nu-bg-secondary { background-color: var(--nu-secondary) !important; }
        .nu-text-primary { color: var(--nu-primary) !important; }
        .nu-text-secondary { color: var(--nu-secondary) !important; }
        .border-nu { border-color: var(--nu-accent) !important; }
        .navbar {
            padding-top: 1rem;
            padding-bottom: 1rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            background-color: rgba(255, 255, 255, 0.98) !important;
        }
        .navbar-brand img { height: 50px; transition: height 0.3s; }
        .nav-link {
            font-weight: 600;
            color: var(--nu-primary) !important;
            margin: 0 0.5rem;
            position: relative;
        }
        .nav-link:after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            bottom: 0;
            left: 50%;
            background-color: var(--nu-secondary);
            transition: all 0.3s ease;
        }
        .nav-link:hover:after, .nav-link.active:after {
            width: 80%;
            left: 10%;
        }
        .hero-section {
            background: linear-gradient(rgba(10, 36, 99, 0.85), rgba(30, 150, 252, 0.8)), url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070') center/cover no-repeat;
            padding: 8rem 0 6rem;
            color: white;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
            margin-bottom: 1.5rem;
        }
        @media (max-width: 768px) { .hero-title { font-size: 2.5rem; } }
        .card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            transition: transform 0.4s ease, box-shadow 0.4s ease;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15) !important;
        }
        .card-img-top { height: 220px; object-fit: cover; transition: transform 0.5s ease; }
        .card:hover .card-img-top { transform: scale(1.05); }
        .btn-nu-primary {
            background-color: var(--nu-primary);
            color: white;
            padding: 0.75rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            border: 2px solid var(--nu-primary);
            transition: all 0.3s ease;
        }
        .btn-nu-primary:hover {
            background-color: transparent;
            color: var(--nu-primary);
            border-color: var(--nu-primary);
        }
        .btn-nu-secondary {
            background-color: var(--nu-secondary);
            color: white;
            padding: 0.75rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            border: 2px solid var(--nu-secondary);
            transition: all 0.3s ease;
        }
        .btn-nu-secondary:hover {
            background-color: transparent;
            color: var(--nu-secondary);
            border-color: var(--nu-secondary);
        }
        section { padding: 5rem 0; }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
            text-align: center;
            font-weight: 700;
        }
        .section-title:after {
            content: '';
            position: absolute;
            width: 80px;
            height: 5px;
            background: var(--nu-secondary);
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 3px;
        }
        .footer {
            background-color: var(--nu-dark);
            color: #ccc;
            padding-top: 4rem;
            padding-bottom: 2rem;
        }
        .footer a { color: #ddd; text-decoration: none; transition: color 0.3s; }
        .footer a:hover { color: var(--nu-accent); }
        .footer-logo { height: 60px; margin-bottom: 1.5rem; }
        .friendlink { background-color: #f8f9fa; padding: 3rem 0; }
        .flink {
            display: inline-block;
            background: white;
            padding: 0.8rem 1.5rem;
            margin: 0.5rem;
            border-radius: 8px;
            color: var(--nu-primary);
            font-weight: 600;
            border: 1px solid #dee2e6;
            transition: all 0.3s ease;
            text-decoration: none !important;
        }
        .flink:hover {
            background: var(--nu-primary);
            color: white;
            transform: scale(1.05);
            border-color: var(--nu-primary);
        }
        @media (max-width: 992px) {
            section { padding: 3rem 0; }
            .display-4 { font-size: 2.5rem; }
        }
        @media (max-width: 576px) {
            .hero-section { padding: 6rem 0 4rem; }
            .hero-title { font-size: 2rem; }
        }
        .text-justify { text-align: justify; }
        .fw-500 { font-weight: 500; }
        .lh-lg { line-height: 1.8; }
        .bg-light-nu { background-color: #f0f5ff; }