:root {
            --tnau-green: #1a5f23;
            --tnau-light-green: #2e8b32;
            --tnau-gold: #d4af37;
            --tnau-beige: #f5f1e6;
            --tnau-brown: #8b4513;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f9f9f9;
        }
        .tnau-bg-primary {
            background-color: var(--tnau-green) !important;
        }
        .tnau-text-primary {
            color: var(--tnau-green) !important;
        }
        .tnau-bg-secondary {
            background-color: var(--tnau-beige) !important;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
        }
        .nav-link {
            font-weight: 500;
            padding: 0.5rem 1rem !important;
            transition: all 0.3s ease;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--tnau-gold) !important;
            background-color: rgba(255,255,255,0.1);
            border-radius: 4px;
        }
        .hero-section {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1500382017468-9049fed747ef?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0 80px;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            text-align: center;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--tnau-gold);
        }
        .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-tnau {
            background-color: var(--tnau-green);
            color: white;
            padding: 10px 25px;
            border-radius: 5px;
            border: none;
            transition: all 0.3s ease;
        }
        .btn-tnau:hover {
            background-color: var(--tnau-light-green);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .research-card {
            border-left: 5px solid var(--tnau-green);
        }
        .campus-life-item {
            text-align: center;
            padding: 30px 20px;
            border-radius: 10px;
            background-color: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
            height: 100%;
        }
        .campus-life-item:hover {
            background-color: var(--tnau-beige);
            transform: translateY(-5px);
        }
        .campus-life-item i {
            font-size: 3rem;
            color: var(--tnau-green);
            margin-bottom: 20px;
        }
        footer {
            background-color: #222;
            color: #ddd;
        }
        .flink {
            display: inline-block;
            padding: 5px 15px;
            margin: 5px;
            background-color: rgba(255,255,255,0.1);
            border-radius: 4px;
            color: #ddd;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        .flink:hover {
            background-color: var(--tnau-gold);
            color: #222;
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--tnau-green);
        }
        .news-date {
            color: var(--tnau-light-green);
            font-weight: 600;
        }
        .accordion-button:not(.collapsed) {
            background-color: rgba(26, 95, 35, 0.1);
            color: var(--tnau-green);
            font-weight: 600;
        }
        .contact-info i {
            width: 40px;
            color: var(--tnau-green);
        }
        .breadcrumb {
            background-color: transparent;
            padding: 0;
        }
        .breadcrumb-item.active {
            color: var(--tnau-gold);
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2rem;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }