/* CSS Reset and Base Styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary-color: #1E3A8A;
            --secondary-color: #059669;
            --accent-color: #D97706;
            --text-dark: #111827;
            --text-medium: #4B5563;
            --text-light: #6B7280;
            --bg-light: #F3F4F6;
            --bg-white: #FFFFFF;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease-in-out;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Open Sans', sans-serif;
            color: var(--text-dark);
            line-height: 1.6;
            background-color: var(--bg-white);
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            line-height: 1.2;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        ul {
            list-style: none;
        }

        img {
            max-width: 100%;
            height: auto;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: 80px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }

        .section-title p {
            font-size: 1.1rem;
            color: var(--text-medium);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Buttons */
        .btn {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 8px;
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
        }

        .btn-primary {
            background-color: var(--accent-color);
            color: var(--bg-white);
        }

        .btn-primary:hover {
            background-color: #B45309;
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--bg-white);
            border: 2px solid var(--bg-white);
        }

        .btn-secondary:hover {
            background-color: var(--bg-white);
            color: var(--primary-color);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--primary-color);
            border: 2px solid var(--primary-color);
        }

        .btn-outline:hover {
            background-color: var(--primary-color);
            color: var(--bg-white);
        }

        /* Header Section */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: var(--bg-white);
            box-shadow: var(--shadow-md);
            z-index: 1000;
            padding: 15px 0;
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-icon {
            width: 45px;
            height: 45px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
        }

        .logo-text {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--primary-color);
        }

        .logo-text span {
            color: var(--secondary-color);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .nav-link {
            font-weight: 500;
            color: var(--text-dark);
            position: relative;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-color);
            transition: var(--transition);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link:hover {
            color: var(--primary-color);
        }

        .header-cta {
            background-color: var(--accent-color);
            color: var(--bg-white);
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 600;
            transition: var(--transition);
        }

        .header-cta:hover {
            background-color: #B45309;
            color: var(--bg-white);
            transform: translateY(-2px);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
        }

        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--primary-color);
            transition: var(--transition);
        }

        /* Hero Section */
        .hero {
            min-height: 100vh;
            background: linear-gradient(rgba(30, 58, 138, 0.8), rgba(5, 150, 105, 0.7)),
                        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%231E3A8A" fill-opacity="0.1" d="M0,192L48,176C96,160,192,128,288,122.7C384,117,480,139,576,154.7C672,171,768,181,864,165.3C960,149,1056,107,1152,96C1248,85,1344,107,1392,117.3L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding-top: 80px;
        }

        .hero-content {
            max-width: 900px;
            padding: 0 20px;
        }

        .hero h1 {
            font-size: 3.5rem;
            color: var(--bg-white);
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }

        .hero-subtitle {
            font-size: 1.5rem;
            color: var(--bg-white);
            margin-bottom: 25px;
            font-weight: 500;
        }

        .hero-description {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 35px;
            line-height: 1.8;
        }

        .hero-features {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .hero-feature {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--bg-white);
            font-weight: 500;
        }

        .hero-feature svg {
            width: 24px;
            height: 24px;
            fill: var(--secondary-color);
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        /* About Section */
        .about {
            background-color: var(--bg-white);
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        .about-text p {
            color: var(--text-medium);
            margin-bottom: 25px;
            font-size: 1.05rem;
        }

        .about-image {
            position: relative;
        }

        .about-image-main {
            width: 100%;
            border-radius: 15px;
            box-shadow: var(--shadow-lg);
        }

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        .about-feature {
            background-color: var(--bg-light);
            padding: 20px;
            border-radius: 10px;
            text-align: center;
        }

        .about-feature h4 {
            color: var(--primary-color);
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .about-feature p {
            font-size: 0.95rem;
            color: var(--text-medium);
            margin: 0;
        }

        /* Services Section */
        .services {
            background-color: var(--bg-light);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }

        .service-card {
            background-color: var(--bg-white);
            padding: 30px 25px;
            border-radius: 15px;
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
        }

        .service-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: white;
        }

        .service-icon svg {
            width: 35px;
            height: 35px;
        }

        .service-card h3 {
            font-size: 1.2rem;
            color: var(--primary-color);
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--text-medium);
            font-size: 0.95rem;
        }

        /* Why Choose Us Section */
        .why-us {
            background-color: var(--bg-white);
        }

        .why-us-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .why-us-text h3 {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        .why-us-text > p {
            color: var(--text-medium);
            margin-bottom: 30px;
            font-size: 1.05rem;
        }

        .why-us-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .why-us-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .why-us-item svg {
            width: 28px;
            height: 28px;
            fill: var(--secondary-color);
            flex-shrink: 0;
            margin-top: 3px;
        }

        .why-us-item h4 {
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 5px;
        }

        .why-us-item p {
            color: var(--text-medium);
            font-size: 0.95rem;
        }

        .why-us-image {
            position: relative;
        }

        .why-us-image img {
            width: 100%;
            border-radius: 15px;
            box-shadow: var(--shadow-lg);
        }

        /* Warranty Section */
        .warranty {
            background: linear-gradient(135deg, var(--primary-color), #1E40AF);
            color: var(--bg-white);
        }

        .warranty .section-title h2,
        .warranty .section-title p {
            color: var(--bg-white);
        }

        .warranty-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .warranty-text h3 {
            font-size: 2rem;
            margin-bottom: 20px;
        }

        .warranty-text > p {
            font-size: 1.1rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }

        .warranty-benefits {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .warranty-benefit {
            background-color: rgba(255, 255, 255, 0.1);
            padding: 20px;
            border-radius: 10px;
            backdrop-filter: blur(10px);
        }

        .warranty-benefit h4 {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 1.1rem;
        }

        .warranty-benefit p {
            font-size: 0.95rem;
            opacity: 0.9;
        }

        .warranty-cta {
            background-color: var(--accent-color);
            color: var(--bg-white);
            padding: 16px 32px;
            border-radius: 8px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-top: 30px;
            transition: var(--transition);
        }

        .warranty-cta:hover {
            background-color: #B45309;
            transform: translateY(-2px);
        }

        /* Testimonials Section */
        .testimonials {
            background-color: var(--bg-light);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .testimonial-card {
            background-color: var(--bg-white);
            padding: 35px 30px;
            border-radius: 15px;
            text-align: center;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }

        .testimonial-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

        .testimonial-stars {
            margin-bottom: 20px;
        }

        .testimonial-stars svg {
            width: 24px;
            height: 24px;
            fill: #FBBF24;
            margin: 0 2px;
        }

        .testimonial-quote {
            font-size: 1.1rem;
            color: var(--text-medium);
            font-style: italic;
            margin-bottom: 25px;
            line-height: 1.7;
        }

        .testimonial-author {
            font-weight: 700;
            color: var(--primary-color);
            font-family: 'Montserrat', sans-serif;
        }

        /* Contact Section */
        .contact {
            background-color: var(--bg-white);
        }

        .contact-content {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 60px;
        }

        .contact-info h3 {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }

        .contact-info > p {
            color: var(--text-medium);
            margin-bottom: 30px;
        }

        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .contact-item-icon {
            width: 50px;
            height: 50px;
            background-color: var(--bg-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .contact-item-icon svg {
            width: 24px;
            height: 24px;
            fill: var(--primary-color);
        }

        .contact-item-text h4 {
            font-size: 1rem;
            color: var(--text-dark);
            margin-bottom: 3px;
        }

        .contact-item-text p {
            color: var(--text-medium);
            font-size: 0.95rem;
        }

        .contact-item-text a {
            color: var(--text-medium);
        }

        .contact-item-text a:hover {
            color: var(--primary-color);
        }

        .contact-form-wrapper {
            background-color: var(--bg-light);
            padding: 40px;
            border-radius: 15px;
        }

        .contact-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 25px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
        }

        .form-group.full-width {
            grid-column: 1 / -1;
        }

        .form-group label {
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
            font-size: 0.95rem;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            padding: 14px 18px;
            border: 2px solid #E5E7EB;
            border-radius: 8px;
            font-family: 'Open Sans', sans-serif;
            font-size: 1rem;
            transition: var(--transition);
            background-color: var(--bg-white);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }

        .form-group select {
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236B7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 15px center;
            background-size: 20px;
        }

        .form-submit {
            grid-column: 1 / -1;
            text-align: center;
        }

        .form-submit button {
            padding: 16px 40px;
            font-size: 1.1rem;
        }

        .form-success {
            display: none;
            text-align: center;
            padding: 40px;
            background-color: var(--bg-white);
            border-radius: 15px;
        }

        .form-success.show {
            display: block;
        }

        .form-success svg {
            width: 80px;
            height: 80px;
            fill: var(--secondary-color);
            margin-bottom: 20px;
        }

        .form-success h3 {
            color: var(--secondary-color);
            font-size: 1.8rem;
            margin-bottom: 15px;
        }

        .form-success p {
            color: var(--text-medium);
            font-size: 1.1rem;
        }

        /* Footer Section */
        .footer {
            background-color: #0F172A;
            color: var(--bg-white);
            padding: 60px 0 30px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 20px;
        }

        .footer-brand .logo-text {
            color: var(--bg-white);
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 25px;
        }

        .footer-social {
            display: flex;
            gap: 15px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background-color: var(--accent-color);
        }

        .footer-social svg {
            width: 20px;
            height: 20px;
            fill: var(--bg-white);
        }

        .footer-links h4 {
            font-size: 1.2rem;
            margin-bottom: 25px;
            color: var(--bg-white);
        }

        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }

        .footer-contact h4 {
            font-size: 1.2rem;
            margin-bottom: 25px;
            color: var(--bg-white);
        }

        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 18px;
        }

        .footer-contact-item svg {
            width: 20px;
            height: 20px;
            fill: var(--secondary-color);
            flex-shrink: 0;
            margin-top: 3px;
        }

        .footer-contact-item p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            line-height: 1.5;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 30px;
            text-align: center;
        }

        .footer-bottom p {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
        }

        /* Popup Styles */
        .popup-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(5px);
            z-index: 2000;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .popup-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .popup-content {
            background-color: var(--bg-white);
            border-radius: 15px;
            max-width: 550px;
            width: 90%;
            max-height: 85vh;
            overflow-y: auto;
            transform: translateY(-20px);
            transition: var(--transition);
        }

        .popup-overlay.active .popup-content {
            transform: translateY(0);
        }

        .popup-header {
            padding: 25px 30px;
            border-bottom: 1px solid #E5E7EB;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .popup-header h3 {
            font-size: 1.4rem;
            color: var(--primary-color);
        }

        .popup-close {
            width: 40px;
            height: 40px;
            background-color: var(--bg-light);
            border: none;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .popup-close:hover {
            background-color: #E5E7EB;
        }

        .popup-close svg {
            width: 20px;
            height: 20px;
            fill: var(--text-medium);
        }

        .popup-body {
            padding: 30px;
        }

        .popup-body p {
            color: var(--text-medium);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .popup-body p:last-child {
            margin-bottom: 0;
        }

        /* Newsletter Popup Specific */
        .newsletter-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .newsletter-form .form-group {
            margin-bottom: 0;
        }

        .newsletter-checkbox {
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .newsletter-checkbox input[type="checkbox"] {
            width: 20px;
            height: 20px;
            margin-top: 3px;
            cursor: pointer;
        }

        .newsletter-checkbox label {
            font-size: 0.9rem;
            color: var(--text-medium);
            cursor: pointer;
        }

        .newsletter-success {
            display: none;
            text-align: center;
            padding: 30px;
        }

        .newsletter-success.show {
            display: block;
        }

        .newsletter-success svg {
            width: 70px;
            height: 70px;
            fill: var(--secondary-color);
            margin-bottom: 20px;
        }

        .newsletter-success h3 {
            color: var(--secondary-color);
            margin-bottom: 10px;
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-on-scroll {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .animate-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Responsive Styles */
        @media (max-width: 1024px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-content {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }

            .nav-menu {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                flex-direction: column;
                padding: 30px;
                gap: 20px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-150%);
                opacity: 0;
                transition: var(--transition);
            }

            .nav-menu.active {
                transform: translateY(0);
                opacity: 1;
            }

            .header-cta {
                display: none;
            }

            .hero h1 {
                font-size: 2.5rem;
            }

            .hero-subtitle {
                font-size: 1.2rem;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }

            .about-content,
            .why-us-content,
            .warranty-content,
            .contact-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .services-grid {
                grid-template-columns: 1fr;
            }

            .testimonials-grid {
                grid-template-columns: 1fr;
            }

            .contact-form {
                grid-template-columns: 1fr;
            }

            .footer-content {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .footer-brand {
                display: flex;
                flex-direction: column;
                align-items: center;
            }

            .footer-social {
                justify-content: center;
            }

            .footer-contact-item {
                justify-content: center;
            }
        }

        @media (max-width: 480px) {
            .section {
                padding: 60px 0;
            }

            .section-title h2 {
                font-size: 2rem;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero-features {
                flex-direction: column;
                gap: 15px;
            }

            .warranty-benefits {
                grid-template-columns: 1fr;
            }

            .contact-form-wrapper {
                padding: 25px;
            }

            .popup-content {
                width: 95%;
            }
        }