:root {
            --primary: #0d47a1;
            --secondary: #ff9800;
            --accent: #1e88e5;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--primary);
        }
        .navbar {
            background-color: rgba(13, 71, 161, 0.95);
            padding: 1rem 0;
            transition: var(--transition);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 800;
            color: white !important;
        }
        .nav-link {
            color: rgba(255,255,255,0.9) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--secondary) !important;
            transform: translateY(-2px);
        }
        .hero {
            background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') no-repeat center center/cover;
            color: white;
            padding: 8rem 0 5rem;
            text-align: center;
        }
        .hero h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
        }
        .btn-primary {
            background-color: var(--secondary);
            border-color: var(--secondary);
            padding: 0.75rem 2rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #e68900;
            border-color: #e68900;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
        }
        .section-title:after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background-color: var(--secondary);
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
        }
        .card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: var(--transition);
            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-icon {
            font-size: 3rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
        }
        .service-card {
            padding: 2rem;
            text-align: center;
        }
        .project-card img {
            height: 250px;
            object-fit: cover;
            transition: var(--transition);
        }
        .project-card:hover img {
            transform: scale(1.05);
        }
        .stats {
            background-color: var(--primary);
            color: white;
            padding: 4rem 0;
        }
        .stat-item {
            text-align: center;
            padding: 1rem;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 0.5rem;
        }
        .team-member {
            text-align: center;
            margin-bottom: 2rem;
        }
        .team-member img {
            width: 200px;
            height: 200px;
            object-fit: cover;
            border-radius: 50%;
            border: 5px solid var(--light);
            margin-bottom: 1rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .contact-info {
            background-color: var(--light);
            padding: 3rem;
            border-radius: 10px;
            height: 100%;
        }
        .contact-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .footer {
            background-color: #1a237e;
            color: white;
            padding: 4rem 0 2rem;
        }
        .footer a {
            color: #bbdefb;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 2rem;
            margin-top: 3rem;
            text-align: center;
        }
        .friendlink {
            background-color: #f5f5f5;
            padding: 3rem 0;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 0.8rem 1.5rem;
            margin: 0.5rem;
            border-radius: 5px;
            color: var(--dark);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            border: 1px solid #e0e0e0;
        }
        .flink:hover {
            background-color: var(--primary);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .timeline {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
        }
        .timeline::after {
            content: '';
            position: absolute;
            width: 6px;
            background-color: var(--primary);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -3px;
        }
        .timeline-item {
            padding: 10px 40px;
            position: relative;
            width: 50%;
            box-sizing: border-box;
        }
        .timeline-item::after {
            content: '';
            position: absolute;
            width: 25px;
            height: 25px;
            background-color: white;
            border: 4px solid var(--secondary);
            border-radius: 50%;
            top: 15px;
            z-index: 1;
        }
        .left {
            left: 0;
        }
        .right {
            left: 50%;
        }
        .left::after {
            right: -17px;
        }
        .right::after {
            left: -17px;
        }
        .content {
            padding: 20px 30px;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-item::after {
                left: 18px;
            }
            .right {
                left: 0;
            }
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            text-decoration: none;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 1000;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: var(--secondary);
            transform: translateY(-5px);
        }