:root {
            --primary: #e67e22;
            --primary-dark: #d35400;
            --secondary: #2c3e50;
            --light: #f9f9f9;
            --dark: #333;
            --gray: #777;
            --border: #ddd;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

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

        h1, h2, h3, h4, h5, h6 {
            font-family: 'Poppins', sans-serif;
            font-weight: 600;
            line-height: 1.2;
            margin-bottom: 1rem;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        ul {
            list-style: none;
        }

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

        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        .btn {
            display: inline-block;
            padding: 12px 30px;
            border-radius: 5px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-dark);
        }

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

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

        /* Header */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: transparent;
            z-index: 1000;
            transition: background-color 0.3s, box-shadow 0.3s;
            box-shadow: none;
        }

        header.scrolled {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 15px;
            flex-wrap: wrap;
        }

        .logo a {
            font-family: 'Poppins', sans-serif;
            font-size: 1.5rem;
            font-weight: 700;
            color: white;
            transition: color 0.3s;
        }

        header.scrolled .logo a {
            color: var(--secondary);
        }

        #navbar ul {
            display: flex;
            gap: 20px;
        }

        #navbar a {
            color: white;
            font-weight: 500;
            transition: color 0.3s;
        }

        #navbar a:hover {
            color: var(--primary);
        }

        header.scrolled #navbar a {
            color: var(--dark);
        }

        header.scrolled #navbar a:hover {
            color: var(--primary);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .phone {
            display: flex;
            align-items: center;
            gap: 5px;
            color: white;
            font-weight: 600;
            transition: color 0.3s;
        }

        header.scrolled .phone {
            color: var(--secondary);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: white;
        }

        header.scrolled .mobile-toggle {
            color: var(--dark);
        }

        /* Mobile Nav */
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }

            #navbar {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: white;
                box-shadow: 0 5px 10px rgba(0,0,0,0.1);
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
            }

            #navbar.active {
                max-height: 500px;
            }

            #navbar ul {
                flex-direction: column;
                padding: 15px;
            }

            #navbar a {
                color: var(--dark);
            }

            .header-cta {
                display: none; /* hide on mobile, will be in mobile menu? But we want phone visible? We'll hide both and show phone in mobile menu? Actually requirement says phone in header, so we need to show it. We'll adjust: we'll keep phone visible and hide CTA? But requirement says both. We'll show both in header-cta but on mobile we might need to wrap. We'll change layout: */
            }

            header .container {
                flex-wrap: wrap;
            }

            .logo {
                width: 100%;
                text-align: center;
                margin-bottom: 10px;
            }

            .header-cta {
                width: 100%;
                justify-content: center;
                margin-bottom: 10px;
                display: flex; /* override the display:none above */
            }

            .phone {
                color: var(--secondary);
            }

            .mobile-toggle {
                position: absolute;
                right: 15px;
                top: 15px;
            }
        }

        /* Hero */
        .hero {
            position: relative;
            height: 100vh;
            min-height: 600px;
            background-image: url('../img/hero.avif');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            color: white;
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
        }

        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
        }

        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
        }

        .hero p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
        }

        .hero-buttons {
            display: flex;
            gap: 15px;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .hero-highlights {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .highlight {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-buttons .btn {
                width: 100%;
                text-align: center;
            }
        }

        /* About */
        .about {
            padding: 80px 0;
            background-color: white;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-image img {
            border-radius: 5px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }

        .about-features li {
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .about-features i {
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .about-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Services */
        .services {
            padding: 80px 0;
            background-color: var(--light);
        }

        .services h2 {
            text-align: center;
            margin-bottom: 10px;
        }

        .section-subtitle {
            text-align: center;
            color: var(--gray);
            margin-bottom: 40px;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: white;
            padding: 30px;
            border-radius: 5px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
            text-align: center;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }

        .service-card i {
            font-size: 3rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }

        .service-card p {
            color: var(--gray);
            margin-bottom: 20px;
        }

        .service-card .btn {
            padding: 8px 20px;
            font-size: 0.9rem;
        }

        /* Why Choose Us */
        .why-choose-us {
            padding: 80px 0;
            background-color: white;
        }

        .why-choose-us h2 {
            text-align: center;
            margin-bottom: 40px;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }

        .feature {
            text-align: center;
            padding: 20px;
        }

        .feature i {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 15px;
        }

        .feature h3 {
            font-size: 1.1rem;
        }

        .stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .stat {
            text-align: center;
        }

        .stat .number {
            display: block;
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
        }

        /* Warranty */
        .warranty {
            padding: 80px 0;
            background-color: var(--light);
        }

        .warranty h2 {
            text-align: center;
            margin-bottom: 20px;
        }

        .warranty > p {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 40px;
            color: var(--gray);
        }

        .warranty-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .warranty-benefits ul {
            list-style: disc;
            padding-left: 20px;
            margin-bottom: 20px;
        }

        .warranty-benefits li {
            margin-bottom: 10px;
        }

        /* Quote Form */
        .quote-form {
            padding: 80px 0;
            background-color: white;
        }

        .quote-form h2 {
            text-align: center;
            margin-bottom: 10px;
        }

        .quote-form > p {
            text-align: center;
            margin-bottom: 40px;
            color: var(--gray);
        }

        .form-row {
            display: flex;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            flex: 1;
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 500;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border);
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
        }

        .form-group textarea {
            resize: vertical;
        }

        .form-group.checkbox {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .form-group.checkbox input {
            width: auto;
        }

        .form-success {
            background: #d4edda;
            color: #155724;
            padding: 15px;
            border-radius: 5px;
            margin-top: 20px;
            text-align: center;
        }

        @media (max-width: 768px) {
            .form-row {
                flex-direction: column;
            }
        }

        /* Testimonials */
        .testimonials {
            padding: 80px 0;
            background-color: var(--light);
        }

        .testimonials h2 {
            text-align: center;
            margin-bottom: 40px;
        }

        .testimonial-slider {
            position: relative;
            overflow: hidden;
        }

        .testimonial-track {
            display: flex;
            transition: transform 0.5s ease;
        }

        .testimonial {
            min-width: 100%;
            padding: 20px;
            background: white;
            border-radius: 5px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 0 10px;
        }

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

        .testimonial-content p {
            font-style: italic;
            margin-bottom: 10px;
        }

        .rating {
            color: #f1c40f;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .testimonial-author img {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            object-fit: cover;
        }

        .author-info h4 {
            margin-bottom: 5px;
        }

        .author-info p {
            color: var(--gray);
            font-size: 0.9rem;
        }

        .testimonial-controls {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 20px;
        }

        .testimonial-controls button {
            background: var(--primary);
            color: white;
            border: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            cursor: pointer;
            transition: background 0.3s;
        }

        .testimonial-controls button:hover {
            background: var(--primary-dark);
        }

        /* Contact */
        .contact {
            padding: 80px 0;
            background-color: white;
        }

        .contact h2 {
            text-align: center;
            margin-bottom: 40px;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .contact-info .info-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-bottom: 20px;
        }

        .contact-info i {
            color: var(--primary);
            font-size: 1.2rem;
            margin-top: 5px;
        }

        .contact-info a {
            color: var(--dark);
        }

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

        .map iframe {
            border-radius: 5px;
            width: 100%;
            height: 300px;
            border: 0;
        }

        .social-icons {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-top: 40px;
        }

        .social-icons a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--light);
            border-radius: 50%;
            color: var(--dark);
            transition: all 0.3s;
        }

        .social-icons a:hover {
            background: var(--primary);
            color: white;
        }

        @media (max-width: 768px) {
            .contact-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Footer */
        footer {
            background-color: var(--secondary);
            color: white;
            padding: 60px 0 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h3,
        .footer-col h4 {
            color: white;
            margin-bottom: 20px;
        }

        .footer-col p {
            color: #bbb;
            margin-bottom: 10px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: #bbb;
            transition: color 0.3s;
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid #444;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-links a {
            color: #bbb;
            margin-left: 20px;
            transition: color 0.3s;
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links a {
                margin: 0 10px;
            }
        }

        /* Modals */
        .modal {
            display: none;
            position: fixed;
            z-index: 2000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            overflow: auto;
            background-color: rgba(0,0,0,0.5);
        }

        .modal-content {
            background-color: white;
            margin: 5% auto;
            padding: 30px;
            border-radius: 5px;
            width: 80%;
            max-width: 600px;
            position: relative;
            animation: modalFade 0.3s;
        }

        @keyframes modalFade {
            from {opacity: 0; transform: translateY(-50px);}
            to {opacity: 1; transform: translateY(0);}
        }

        .close {
            color: var(--gray);
            float: right;
            font-size: 28px;
            font-weight: bold;
            cursor: pointer;
        }

        .close:hover {
            color: var(--dark);
        }

        /* Sticky CTA */
        .sticky-cta {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 999;
            display: none;
        }

        @media (max-width: 768px) {
            .sticky-cta {
                display: block;
            }
        }