:root {
            --primary-green: #2a6e3b;
            --secondary-green: #3a9e5a;
            --accent-gold: #d4af37;
            --light-beige: #f8f5f0;
            --dark-text: #2c3e50;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--dark-text);
            line-height: 1.7;
            background-color: #fefefe;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-green) !important;
        }
        .nav-link {
            font-weight: 500;
            transition: color 0.3s;
        }
        .nav-link:hover {
            color: var(--secondary-green) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(42, 110, 59, 0.85), rgba(42, 110, 59, 0.9)), url('https://images.unsplash.com/photo-1592841200221-7ef5c6d6c5a4?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0;
            min-height: 80vh;
            display: flex;
            align-items: center;
        }
        .section-title {
            color: var(--primary-green);
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 30px;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background-color: var(--accent-gold);
        }
        .section-title.text-center:after {
            left: 50%;
            transform: translateX(-50%);
        }
        .card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: transform 0.4s, box-shadow 0.4s;
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(42, 110, 59, 0.15);
        }
        .card-img-top {
            height: 220px;
            object-fit: cover;
        }
        .btn-primary {
            background-color: var(--primary-green);
            border-color: var(--primary-green);
            padding: 10px 25px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: var(--secondary-green);
            border-color: var(--secondary-green);
            transform: scale(1.05);
        }
        .bg-light-green {
            background-color: #f0f9f2;
        }
        .icon-box {
            width: 70px;
            height: 70px;
            background-color: rgba(42, 110, 59, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary-green);
            font-size: 28px;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-green);
            line-height: 1;
        }
        .flink {
            display: inline-block;
            padding: 8px 15px;
            margin: 5px;
            background-color: #f1f8f3;
            border-radius: 5px;
            color: var(--dark-text);
            text-decoration: none;
            transition: all 0.3s;
            border: 1px solid #deedd7;
        }
        .flink:hover {
            background-color: var(--primary-green);
            color: white;
            transform: translateY(-3px);
        }
        footer {
            background-color: #1e2b2e;
            color: #b0bec5;
        }
        footer a {
            color: #b0bec5;
            text-decoration: none;
            transition: color 0.3s;
        }
        footer a:hover {
            color: white;
        }
        .footer-title {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: var(--accent-gold);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-green);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            text-decoration: none;
            opacity: 0;
            transition: opacity 0.3s, transform 0.3s;
            z-index: 1000;
        }
        .back-to-top.show {
            opacity: 1;
        }
        .back-to-top:hover {
            background-color: var(--secondary-green);
            color: white;
            transform: scale(1.1);
        }
        .research-highlight {
            border-left: 4px solid var(--accent-gold);
            padding-left: 20px;
            margin: 30px 0;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0;
                min-height: 60vh;
            }
            .stat-number {
                font-size: 2.5rem;
            }
        }