:root {
            --primary-green: #2e7d32;
            --secondary-gold: #c8a415;
            --light-beige: #f5f1e6;
            --dark-green: #1b5e20;
            --text-dark: #2c3e50;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--text-dark);
            line-height: 1.7;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--dark-green) !important;
        }
        .nav-link {
            font-weight: 600;
            transition: color 0.3s;
        }
        .nav-link:hover {
            color: var(--secondary-gold) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(43, 108, 46, 0.85), rgba(27, 94, 32, 0.9)), 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');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 120px 0;
        }
        .section-title {
            color: var(--dark-green);
            border-left: 5px solid var(--secondary-gold);
            padding-left: 15px;
            margin-bottom: 30px;
            font-weight: 700;
        }
        .card {
            border: none;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .icon-box {
            width: 70px;
            height: 70px;
            background-color: rgba(46, 125, 50, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary-green);
            font-size: 1.8rem;
        }
        .btn-primary {
            background-color: var(--primary-green);
            border-color: var(--primary-green);
            padding: 10px 25px;
            font-weight: 600;
        }
        .btn-primary:hover {
            background-color: var(--dark-green);
            border-color: var(--dark-green);
        }
        .btn-outline-primary {
            color: var(--primary-green);
            border-color: var(--primary-green);
        }
        .btn-outline-primary:hover {
            background-color: var(--primary-green);
            border-color: var(--primary-green);
        }
        footer {
            background-color: var(--dark-green);
            color: white;
        }
        .footer-link {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-link:hover {
            color: var(--secondary-gold);
        }
        .friendlink-section {
            background-color: var(--light-beige);
            padding: 40px 0;
            border-top: 1px solid #ddd;
            border-bottom: 1px solid #ddd;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 10px 20px;
            margin: 8px;
            border-radius: 6px;
            text-decoration: none;
            color: var(--dark-green);
            font-weight: 500;
            box-shadow: 0 3px 8px rgba(0,0,0,0.08);
            transition: all 0.3s;
            border: 1px solid #e0e0e0;
        }
        .flink:hover {
            background-color: var(--primary-green);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .research-highlight {
            border-left: 4px solid var(--secondary-gold);
            background-color: #f9f9f9;
            padding: 20px;
            margin: 20px 0;
        }
        .sticky-nav {
            position: sticky;
            top: 0;
            z-index: 1020;
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .map-container {
            height: 300px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .publication-item {
            padding: 15px 0;
            border-bottom: 1px dashed #ddd;
        }
        .publication-item:last-child {
            border-bottom: none;
        }
        .accordion-button:not(.collapsed) {
            background-color: rgba(46, 125, 50, 0.1);
            color: var(--dark-green);
            font-weight: 600;
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-green);
            line-height: 1;
        }
        .stats-label {
            font-size: 1rem;
            color: #666;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .contact-info-box {
            padding: 20px;
            border-radius: 10px;
            background-color: #f8f9fa;
            border-left: 4px solid var(--primary-green);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0;
            }
            .stats-number {
                font-size: 2.5rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }