:root {
            --au-primary: #0a3d62;
            --au-secondary: #f9c22e;
            --au-accent: #1e6f5c;
            --au-light: #f8f9fa;
            --au-dark: #222f3e;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            color: var(--au-primary);
            font-weight: 700;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--au-primary) !important;
        }
        .navbar-brand span {
            color: var(--au-secondary);
        }
        .nav-link {
            font-weight: 600;
            padding: 0.5rem 1.2rem !important;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .nav-link:hover, .nav-link.active {
            background-color: var(--au-primary);
            color: white !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(10, 61, 98, 0.85), rgba(30, 111, 92, 0.85)), url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') no-repeat center center/cover;
            color: white;
            padding: 10rem 0;
            margin-top: 76px;
        }
        .hero-section h1 {
            color: white;
            font-size: 3.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 3rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--au-secondary);
        }
        .section-title.left::after {
            left: 0;
            transform: none;
        }
        .card {
            border: none;
            border-radius: 12px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.08);
            transition: transform 0.4s ease, box-shadow 0.4s ease;
            height: 100%;
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-12px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .card-img-top {
            height: 220px;
            object-fit: cover;
            border-top-left-radius: 12px;
            border-top-right-radius: 12px;
        }
        .icon-box {
            width: 70px;
            height: 70px;
            background: var(--au-primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin: 0 auto 1.5rem;
            transition: all 0.3s ease;
        }
        .feature-card:hover .icon-box {
            background: var(--au-secondary);
            color: var(--au-primary);
            transform: rotate(15deg) scale(1.1);
        }
        .news-card {
            border-left: 5px solid var(--au-primary);
        }
        .news-card .date {
            background: var(--au-accent);
            color: white;
            padding: 5px 15px;
            border-radius: 4px;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 15px;
        }
        .flink {
            display: inline-block;
            padding: 10px 20px;
            margin: 8px;
            background: var(--au-light);
            border-radius: 8px;
            color: var(--au-dark);
            text-decoration: none;
            border: 1px solid #dee2e6;
            transition: all 0.3s ease;
            font-weight: 500;
        }
        .flink:hover {
            background: var(--au-primary);
            color: white;
            transform: scale(1.05);
            text-decoration: none;
        }
        footer {
            background: var(--au-dark);
            color: #ddd;
        }
        footer a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        footer a:hover {
            color: var(--au-secondary);
        }
        .footer-bottom {
            background: #111;
            font-size: 0.9rem;
        }
        .contact-info li {
            margin-bottom: 12px;
            padding-left: 28px;
            position: relative;
        }
        .contact-info li i {
            position: absolute;
            left: 0;
            top: 5px;
            color: var(--au-secondary);
        }
        .btn-au-primary {
            background: var(--au-primary);
            color: white;
            padding: 12px 28px;
            border-radius: 6px;
            font-weight: 600;
            border: none;
            transition: all 0.3s ease;
        }
        .btn-au-primary:hover {
            background: var(--au-accent);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(0,0,0,0.2);
        }
        .btn-au-secondary {
            background: var(--au-secondary);
            color: var(--au-primary);
            padding: 12px 28px;
            border-radius: 6px;
            font-weight: 600;
            border: none;
            transition: all 0.3s ease;
        }
        .btn-au-secondary:hover {
            background: #e6b400;
            color: var(--au-primary);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--au-primary);
            line-height: 1;
        }
        .stat-label {
            font-size: 1rem;
            color: #666;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .campus-life-img {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 6rem 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }
        #backToTop {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 1000;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--au-primary);
            color: white;
            border: none;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 10px rgba(0,0,0,0.2);
            transition: all 0.3s ease;
        }
        #backToTop:hover {
            background: var(--au-accent);
            transform: translateY(-5px);
        }