:root {
            --primary-green: #1e7e34;
            --secondary-green: #28a745;
            --accent-gold: #ffc107;
            --dark-bg: #212529;
            --light-bg: #f8f9fa;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            color: #333;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
        }
        .nav-link {
            font-weight: 500;
            transition: color 0.3s ease;
        }
        .nav-link:hover {
            color: var(--accent-gold) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1551958219-acbc608c6377?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            min-height: 90vh;
            display: flex;
            align-items: center;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
        }
        @media (max-width: 768px) {
            .hero-title { font-size: 2.5rem; }
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 50px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--primary-green);
        }
        .text-center .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .service-card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
            border: none;
            border-radius: 12px;
            overflow: hidden;
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .service-icon {
            font-size: 3rem;
            color: var(--primary-green);
            margin-bottom: 20px;
        }
        .stats-section {
            background: linear-gradient(135deg, var(--primary-green), #2ecc71);
            color: white;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
        }
        .project-img {
            height: 300px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .project-card:hover .project-img {
            transform: scale(1.05);
        }
        .team-member {
            text-align: center;
            margin-bottom: 30px;
        }
        .team-img {
            width: 200px;
            height: 200px;
            border-radius: 50%;
            object-fit: cover;
            margin-bottom: 20px;
            border: 5px solid #f1f1f1;
        }
        .contact-info i {
            width: 40px;
            color: var(--primary-green);
        }
        .footer {
            background-color: var(--dark-bg);
            color: #ddd;
        }
        .footer a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer a:hover {
            color: var(--accent-gold);
        }
        .flink {
            display: inline-block;
            background: #f8f9fa;
            padding: 8px 20px;
            margin: 5px 10px 5px 0;
            border-radius: 25px;
            color: #333;
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid #dee2e6;
        }
        .flink:hover {
            background: var(--primary-green);
            color: white;
            transform: translateY(-2px);
            border-color: var(--primary-green);
        }
        .btn-primary-custom {
            background-color: var(--primary-green);
            border-color: var(--primary-green);
            padding: 12px 30px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary-custom:hover {
            background-color: #155724;
            border-color: #155724;
            transform: translateY(-2px);
        }
        .accordion-button:not(.collapsed) {
            background-color: rgba(30, 126, 52, 0.1);
            color: var(--primary-green);
            font-weight: 600;
        }
        .timeline {
            position: relative;
            padding-left: 30px;
            margin-left: 20px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary-green);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 30px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -33px;
            top: 5px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background: var(--primary-green);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--primary-green);
        }
        .cert-badge {
            display: inline-block;
            background: #e9f7ef;
            color: var(--primary-green);
            padding: 5px 15px;
            border-radius: 20px;
            margin: 5px;
            font-size: 0.9rem;
            border: 1px solid #d1e7dd;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 1000;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary-green);
            color: white;
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: #155724;
        }