/* --- CSS VARIABLES & RESET --- */
        :root {
            --primary-color: #0056b3; /* Trustworthy Blue */
            --primary-dark: #004494;
            --accent-color: #ff6b35; /* Energetic Orange */
            --text-dark: #1f2937;
            --text-light: #6b7280;
            --white: #ffffff;
            --bg-light: #f3f4f6;
            --border-color: #e5e7eb;
            --shadow-sm: 0 1px 2px 0 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);
            --radius: 8px;
            --container-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: 0.3s;
        }

        ul {
            list-style: none;
        }

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

        /* --- UTILITIES --- */
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-padding {
            padding: 80px 0;
        }

        .text-center {
            text-align: center;
        }

        .section-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-dark);
        }

        .section-subtitle {
            color: var(--accent-color);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 10px;
            display: block;
        }

        .btn {
            display: inline-block;
            padding: 12px 30px;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all 0.3s ease;
        }

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

        .btn-primary:hover {
            background-color: #e55a2b;
            transform: translateY(-2px);
        }

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

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

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

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

        /* --- HEADER --- */
        header {
            background-color: var(--white);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo i {
            font-size: 1.8rem;
            color: var(--accent-color);
        }

        .nav-links {
            display: flex;
            gap: 30px;
        }

        .nav-links a {
            font-weight: 500;
            color: var(--text-dark);
        }

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

        .mobile-menu-btn {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* --- HERO SECTION --- */
        .hero {
            background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../images/hero.webp');
            background-size: cover;
            background-position: center;
            height: 90vh; /* Full viewport height mostly */
            display: flex;
            align-items: center;
            color: var(--white);
            text-align: center;
        }

        .hero-content h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .hero-content p {
            font-size: 1.25rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }

        /* --- ABOUT US --- */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
        }

        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
        }

        .about-text p {
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .features-list {
            margin-top: 20px;
        }

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

        .features-list i {
            color: var(--accent-color);
        }

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

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }

        .service-card {
            background: var(--white);
            padding: 30px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            transition: 0.3s;
            text-align: center;
            border-bottom: 4px solid transparent;
        }

        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
            border-bottom: 4px solid var(--accent-color);
        }

        .service-icon {
            width: 70px;
            height: 70px;
            background-color: #e0f2fe;
            color: var(--primary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            margin: 0 auto 20px;
        }

        .service-card h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }

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

        /* --- WHY CHOOSE US --- */
        .why-choose-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 40px;
        }

        .feature-box {
            text-align: center;
            padding: 40px 20px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
        }

        .feature-box i {
            font-size: 2.5rem;
            color: var(--accent-color);
            margin-bottom: 20px;
        }

        /* --- HOME WARRANTY --- */
        .warranty {
            background-color: var(--primary-color);
            color: var(--white);
            text-align: center;
        }

        .warranty-content h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }

        .warranty-content p {
            max-width: 700px;
            margin: 0 auto 30px;
            font-size: 1.1rem;
            opacity: 0.9;
        }

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

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }

        .testimonial-card {
            background: var(--white);
            padding: 30px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .quote-icon {
            font-size: 2rem;
            color: #d1d5db;
            position: absolute;
            top: 20px;
            right: 20px;
        }

        .client-info {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-top: 20px;
        }

        .client-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            object-fit: cover;
        }

        .stars {
            color: #f59e0b;
            margin-bottom: 10px;
            font-size: 0.9rem;
        }

        /* --- QUOTES & CONTACT --- */
        .contact-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            box-shadow: var(--shadow-lg);
            border-radius: var(--radius);
            overflow: hidden;
            margin-top: 50px;
        }

        .contact-info {
            background-color: var(--text-dark);
            color: var(--white);
            padding: 50px;
        }

        .contact-info h3 {
            font-size: 2rem;
            margin-bottom: 20px;
        }

        .info-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-bottom: 25px;
        }

        .info-item i {
            font-size: 1.5rem;
            color: var(--accent-color);
            margin-top: 5px;
        }

        .contact-form-wrapper {
            background-color: var(--white);
            padding: 50px;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
        }

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            font-family: inherit;
            font-size: 1rem;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.1);
        }

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

        /* --- NEWSLETTER --- */
        .newsletter {
            background: linear-gradient(rgba(0, 86, 179, 0.9), rgba(0, 86, 179, 0.9)), url('../images/warranty.jpg');
            background-size: cover;
            background-position: center;
            color: var(--white);
            text-align: center;
        }

        .newsletter-form {
            max-width: 800px;
            margin: 40px auto 0;
            background: var(--white);
            padding: 40px;
            border-radius: var(--radius);
            color: var(--text-dark);
        }

        .newsletter-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            text-align: left;
        }

        .full-width {
            grid-column: span 2;
        }

        .checkbox-group {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
        }

        .checkbox-group input {
            width: 16px;
            height: 16px;
            accent-color: var(--accent-color);
        }

        /* --- FOOTER --- */
        footer {
            background-color: #111827;
            color: #d1d5db;
            padding: 60px 0 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
            border-bottom: 1px solid #374151;
            padding-bottom: 40px;
        }

        .footer-col h4 {
            color: var(--white);
            font-size: 1.2rem;
            margin-bottom: 20px;
        }

        .footer-about p {
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

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

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

        .footer-bottom {
            text-align: center;
            font-size: 0.9rem;
        }

        .legal-links a {
            margin: 0 10px;
            cursor: pointer;
            text-decoration: underline;
        }

        /* --- MODAL --- */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

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

        .modal-content {
            background: var(--white);
            width: 90%;
            max-width: 600px;
            max-height: 80vh;
            border-radius: var(--radius);
            padding: 30px;
            position: relative;
            overflow-y: auto;
            transform: translateY(20px);
            transition: all 0.3s ease;
        }

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

        .close-modal {
            position: absolute;
            top: 15px;
            right: 15px;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-light);
        }

        /* --- TOAST NOTIFICATION --- */
        .toast {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background-color: var(--white);
            color: var(--text-dark);
            padding: 20px 25px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            border-left: 5px solid #22c55e;
            display: flex;
            align-items: center;
            gap: 15px;
            transform: translateX(150%);
            transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            z-index: 3000;
        }

        .toast.show {
            transform: translateX(0);
        }

        .toast i {
            color: #22c55e;
            font-size: 1.5rem;
        }

        /* --- RESPONSIVE --- */
        @media (max-width: 992px) {
            .hero-content h1 { font-size: 2.8rem; }
            .about-grid, .contact-section, .footer-grid { grid-template-columns: 1fr; }
            .why-choose-grid { grid-template-columns: repeat(2, 1fr); }
            .contact-info { padding: 30px; }
            .contact-form-wrapper { padding: 30px; }
        }

        @media (max-width: 768px) {
            .nav-links { display: none; }
            .mobile-menu-btn { display: block; }
            .hero-content h1 { font-size: 2.2rem; }
            .section-title { font-size: 2rem; }
            .newsletter-grid { grid-template-columns: 1fr; }
            .full-width { grid-column: span 1; }
            .why-choose-grid { grid-template-columns: 1fr; }
        }