:root {
            --primary-color: #1a365d;
            --secondary-color: #d4af37;
            --accent-color: #2d5a8c;
            --text-dark: #2d3748;
            --text-light: #718096;
            --light-bg: #f8f9fa;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 600;
            color: var(--text-dark) !important;
            transition: all 0.3s ease;
            margin: 0 5px;
            padding: 8px 15px !important;
            border-radius: 5px;
        }
        .nav-link:hover, .nav-link.active {
            background-color: var(--primary-color);
            color: white !important;
        }
        .hero-section {
            background: linear-gradient(rgba(26, 54, 93, 0.85), rgba(26, 54, 93, 0.9)), url('https://images.unsplash.com/photo-1441986300917-64674bd600d8?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 120px 0;
            position: relative;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
        }
        .hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            max-width: 700px;
        }
        .btn-primary-custom {
            background-color: var(--secondary-color);
            border: none;
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 4px;
            transition: all 0.3s ease;
            color: var(--primary-color);
        }
        .btn-primary-custom:hover {
            background-color: #c19b2e;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .section-padding {
            padding: 100px 0;
        }
        .section-title {
            position: relative;
            padding-bottom: 20px;
            margin-bottom: 50px;
            text-align: center;
        }
        .section-title:after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background-color: var(--secondary-color);
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
        }
        .feature-box {
            background: white;
            border-radius: 10px;
            padding: 40px 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            height: 100%;
            border-top: 4px solid var(--secondary-color);
        }
        .feature-box:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.12);
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--secondary-color);
            margin-bottom: 25px;
            display: inline-block;
        }
        .about-img {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .product-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: 100%;
        }
        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .product-img {
            height: 250px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .product-card:hover .product-img {
            transform: scale(1.05);
        }
        .stats-section {
            background: linear-gradient(rgba(26, 54, 93, 0.9), rgba(26, 54, 93, 0.95)), url('https://images.unsplash.com/photo-1497366754035-f200968a6e72?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 80px 0;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--secondary-color);
            margin-bottom: 10px;
        }
        .contact-info-box {
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            text-align: center;
            height: 100%;
            border-left: 4px solid var(--secondary-color);
        }
        .contact-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        .form-control-custom {
            padding: 15px;
            border-radius: 5px;
            border: 1px solid #e2e8f0;
            transition: all 0.3s ease;
        }
        .form-control-custom:focus {
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            padding-top: 80px;
        }
        .footer-title {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 15px;
        }
        .footer-title:after {
            content: '';
            position: absolute;
            width: 50px;
            height: 3px;
            background-color: var(--secondary-color);
            bottom: 0;
            left: 0;
        }
        .footer-links a {
            color: #cbd5e0;
            text-decoration: none;
            display: block;
            margin-bottom: 12px;
            transition: all 0.3s ease;
        }
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .copyright {
            background-color: rgba(0,0,0,0.2);
            padding: 20px 0;
            margin-top: 50px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        .friendlink {
            background-color: #f8f9fa;
            padding: 60px 0;
        }
        .flink {
            background-color: white;
            border-radius: 8px;
            padding: 20px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid #e2e8f0;
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 600;
        }
        .flink:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            border-color: var(--secondary-color);
            color: var(--primary-color);
        }
        .flink i {
            margin-right: 10px;
            color: var(--secondary-color);
        }
        .cert-badge {
            background-color: var(--secondary-color);
            color: var(--primary-color);
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            display: inline-block;
            margin-right: 10px;
            margin-bottom: 10px;
        }
        .timeline {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
        }
        .timeline::after {
            content: '';
            position: absolute;
            width: 6px;
            background-color: var(--secondary-color);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -3px;
        }
        .timeline-item {
            padding: 10px 40px;
            position: relative;
            width: 50%;
            box-sizing: border-box;
        }
        .timeline-item:nth-child(odd) {
            left: 0;
        }
        .timeline-item:nth-child(even) {
            left: 50%;
        }
        .timeline-content {
            padding: 20px 30px;
            background-color: white;
            position: relative;
            border-radius: 6px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        .timeline-item:nth-child(odd) .timeline-content:after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            right: -10px;
            background-color: white;
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }
        @media screen and (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .section-padding {
                padding: 60px 0;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-item:nth-child(even) {
                left: 0;
            }
        }
        .loading-spinner {
            display: none;
            text-align: center;
            margin-top: 20px;
        }
        .toast-custom {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 1055;
            display: none;
        }
        .social-icons a {
            display: inline-block;
            width: 40px;
            height: 40px;
            background-color: rgba(255,255,255,0.1);
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            margin-right: 10px;
            color: white;
            transition: all 0.3s ease;
        }
        .social-icons a:hover {
            background-color: var(--secondary-color);
            color: var(--primary-color);
            transform: translateY(-3px);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--secondary-color);
            color: var(--primary-color);
            border-radius: 50%;
            text-align: center;
            line-height: 50px;
            font-size: 1.2rem;
            cursor: pointer;
            transition: all 0.3s ease;
            z-index: 1000;
            display: none;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .back-to-top:hover {
            background-color: #c19b2e;
            transform: translateY(-5px);
        }