:root {
            --primary-blue: #0d47a1;
            --secondary-blue: #1565c0;
            --accent-orange: #ff6f00;
            --light-gray: #f8f9fa;
            --dark-gray: #212529;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            color: var(--dark-gray);
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-blue) !important;
        }
        .navbar-brand span {
            color: var(--accent-orange);
        }
        .nav-link {
            font-weight: 500;
            margin: 0 8px;
            transition: var(--transition);
            border-bottom: 2px solid transparent;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--accent-orange) !important;
            border-bottom-color: var(--accent-orange);
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
            color: white;
            padding: 120px 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="white" opacity="0.05"/></svg>');
            background-size: cover;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
        }
        @media (max-width: 768px) {
            .hero-title { font-size: 2.5rem; }
        }
        .btn-primary-custom {
            background: var(--accent-orange);
            border: none;
            padding: 12px 32px;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            background: #e65100;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .section-title {
            position: relative;
            margin-bottom: 3rem;
            font-weight: 700;
            color: var(--primary-blue);
        }
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -10px;
            width: 60px;
            height: 4px;
            background: var(--accent-orange);
        }
        .text-center .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .service-card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .service-icon {
            font-size: 3rem;
            color: var(--accent-orange);
            margin-bottom: 1.5rem;
        }
        .tech-stack img {
            filter: grayscale(100%);
            opacity: 0.7;
            transition: var(--transition);
            max-height: 40px;
        }
        .tech-stack img:hover {
            filter: grayscale(0);
            opacity: 1;
            transform: scale(1.1);
        }
        .stat-card {
            background: white;
            border-radius: 10px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-blue);
            line-height: 1;
        }
        .testimonial-card {
            border-left: 5px solid var(--accent-orange);
            padding-left: 25px;
            font-style: italic;
        }
        footer {
            background: #1a237e;
            color: white;
            padding-top: 60px;
        }
        .footer-links a {
            color: #e0e0e0;
            text-decoration: none;
            transition: var(--transition);
            display: block;
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .friendlink {
            background: rgba(255,255,255,0.1);
            border-radius: 8px;
            padding: 15px;
            margin-bottom: 15px;
            transition: var(--transition);
            display: block;
            color: white;
            text-decoration: none;
        }
        .friendlink:hover {
            background: rgba(255,255,255,0.2);
            transform: translateX(5px);
        }
        .flink {
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 20px 0;
            margin-top: 40px;
        }
        .contact-info i {
            color: var(--accent-orange);
            margin-right: 10px;
            width: 20px;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--accent-orange);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            opacity: 0;
            transition: var(--transition);
            z-index: 1000;
        }
        .back-to-top.visible {
            opacity: 1;
        }
        .back-to-top:hover {
            background: #e65100;
            transform: translateY(-3px);
        }