:root {
            --primary-green: #2a6e3f;
            --secondary-green: #3a9d5d;
            --accent-gold: #d4af37;
            --light-beige: #f8f5e9;
            --dark-gray: #333;
            --medium-gray: #666;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--dark-gray);
            line-height: 1.6;
            background-color: #fff;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-green) !important;
        }
        .nav-link {
            font-weight: 500;
            padding: 0.5rem 1.2rem !important;
            transition: all 0.3s ease;
        }
        .nav-link:hover {
            color: var(--secondary-green) !important;
            transform: translateY(-2px);
        }
        .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') no-repeat center center/cover;
            color: white;
            padding: 8rem 0;
            margin-bottom: 4rem;
        }
        .section-title {
            color: var(--primary-green);
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 2rem;
            font-weight: 700;
        }
        .section-title:after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 80px;
            height: 4px;
            background-color: var(--accent-gold);
        }
        .text-center .section-title:after {
            left: 50%;
            transform: translateX(-50%);
        }
        .card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .card-img-top {
            height: 220px;
            object-fit: cover;
        }
        .icon-box {
            width: 70px;
            height: 70px;
            background-color: rgba(42, 110, 63, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: var(--primary-green);
            font-size: 1.8rem;
        }
        .stats-box {
            background-color: var(--light-beige);
            padding: 2rem;
            border-radius: 10px;
            text-align: center;
            transition: all 0.3s ease;
        }
        .stats-box:hover {
            background-color: var(--primary-green);
            color: white;
        }
        .stats-box:hover .stats-number {
            color: var(--accent-gold);
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-green);
            display: block;
            line-height: 1;
        }
        .btn-primary {
            background-color: var(--primary-green);
            border-color: var(--primary-green);
            padding: 0.7rem 2rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            background-color: var(--secondary-green);
            border-color: var(--secondary-green);
            transform: scale(1.05);
        }
        .footer {
            background-color: #222;
            color: #ddd;
            padding-top: 3rem;
            margin-top: 4rem;
        }
        .footer a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer a:hover {
            color: var(--accent-gold);
        }
        .footer-bottom {
            background-color: #111;
            padding: 1.5rem 0;
            margin-top: 2rem;
        }
        .friend-links a.flink {
            display: inline-block;
            background-color: rgba(255,255,255,0.1);
            padding: 0.5rem 1.5rem;
            margin: 0.3rem;
            border-radius: 30px;
            transition: all 0.3s ease;
        }
        .friend-links a.flink:hover {
            background-color: var(--primary-green);
            transform: translateY(-3px);
        }
        .research-highlight {
            border-left: 5px solid var(--accent-gold);
            padding-left: 1.5rem;
            background-color: var(--light-beige);
            padding: 1.5rem;
            border-radius: 0 10px 10px 0;
        }
        .timeline-item {
            position: relative;
            padding-left: 30px;
            margin-bottom: 2rem;
        }
        .timeline-item:before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background-color: var(--primary-green);
        }
        .timeline-item:after {
            content: '';
            position: absolute;
            left: 7px;
            top: 23px;
            width: 1px;
            height: calc(100% + 1rem);
            background-color: var(--medium-gray);
        }
        .timeline-item:last-child:after {
            display: none;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 5rem 0;
            }
            .stats-number {
                font-size: 2.5rem;
            }
            .nav-link {
                padding: 0.5rem 0 !important;
            }
        }