/* --- CSS VARIABLES & RESET --- */
        :root {
            --primary-color: #2c3e50; /* Navy Blue */
            --secondary-color: #e67e22; /* Orange Accent */
            --accent-color: #27ae60; /* Green for warranty/safety */
            --light-bg: #f9f9f9;
            --white: #ffffff;
            --text-dark: #333333;
            --text-light: #777777;
            --shadow: 0 4px 15px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Open Sans', sans-serif;
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        a { text-decoration: none; color: inherit; }
        ul { list-style: none; }
        img { max-width: 100%; display: block; }

        /* --- UTILITIES --- */
        .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: var(--transition);
            cursor: pointer;
            border: none;
        }

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

        .btn-primary:hover {
            background-color: #d35400;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(230, 126, 34, 0.4);
        }

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

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

        .section-padding {
            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 {
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }

        /* --- HEADER & NAV --- */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: var(--white);
            box-shadow: var(--shadow);
            z-index: 1000;
            transition: var(--transition);
        }

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

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 25px;
        }

        .nav-menu a {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary-color);
            position: relative;
        }

        .nav-menu a:not(.btn)::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -5px;
            left: 0;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }

        .nav-menu a:not(.btn):hover::after {
            width: 100%;
        }

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

        /* --- HERO SECTION --- */
        .hero {
            height: 100vh;
            background: linear-gradient(rgba(44, 62, 80, 0.7), rgba(44, 62, 80, 0.7)), url('../img/hero.avif');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: var(--white);
            padding-top: 80px;
        }

        .hero-content {
            max-width: 800px;
            animation: fadeInUp 1s ease-out;
        }

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

        .hero p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }

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

        /* --- ABOUT SECTION --- */
        .about {
            background: var(--white);
        }

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

        .about-img {
            position: relative;
        }

        .about-img img {
            border-radius: 10px;
            box-shadow: var(--shadow);
        }

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

        .about-features {
            margin-top: 30px;
        }

        .feature-item {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }

        .feature-icon {
            width: 50px;
            height: 50px;
            background: var(--light-bg);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            color: var(--secondary-color);
            font-size: 1.2rem;
        }

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

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

        .service-card {
            background: var(--white);
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }

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

        .service-card:hover .service-icon {
            color: var(--secondary-color);
            transform: scale(1.1);
        }

        .service-card h4 {
            margin-bottom: 15px;
            font-size: 1.2rem;
        }

        .learn-more {
            color: var(--secondary-color);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 15px;
            display: inline-block;
            opacity: 0;
            transform: translateY(10px);
            transition: var(--transition);
        }

        .service-card:hover .learn-more {
            opacity: 1;
            transform: translateY(0);
        }

        /* --- WHY CHOOSE US --- */
        .why-us {
            background: var(--white);
        }

        .differentials {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 30px;
            text-align: center;
        }

        .diff-item {
            flex: 1;
            min-width: 200px;
            max-width: 300px;
        }

        .diff-icon {
            font-size: 3rem;
            color: var(--accent-color);
            margin-bottom: 20px;
            animation: float 3s ease-in-out infinite;
        }

        .diff-item h4 {
            margin-bottom: 10px;
        }

        /* --- HOME WARRANTY --- */
        .warranty {
            background: linear-gradient(to right, var(--primary-color), #34495e);
            color: var(--white);
            text-align: center;
        }

        .warranty .section-title h2 { color: var(--white); }
        .warranty .section-title p { color: #bdc3c7; }

        .warranty-content {
            max-width: 700px;
            margin: 0 auto;
            background: rgba(255,255,255,0.1);
            padding: 40px;
            border-radius: 10px;
        }

        .warranty-icon {
            font-size: 4rem;
            margin-bottom: 20px;
            color: var(--secondary-color);
        }

        /* --- CONTACT / QUOTE FORM --- */
        .contact-section {
            background: var(--light-bg);
        }

        .form-container {
            background: var(--white);
            padding: 40px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            max-width: 700px;
            margin: 0 auto;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--primary-color);
        }

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-family: inherit;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--secondary-color);
            outline: none;
        }

        .form-message {
            height: 120px;
            resize: vertical;
        }

        #form-feedback {
            margin-top: 15px;
            text-align: center;
            font-weight: 600;
            color: var(--accent-color);
            display: none;
        }

        /* --- TESTIMONIALS --- */
        .testimonials {
            background: var(--white);
            text-align: center;
        }

        .testimonial-slider {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            overflow: hidden;
            min-height: 300px;
        }

        .testimonial-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            opacity: 0;
            transition: opacity 0.5s ease-in-out;
            padding: 20px;
        }

        .testimonial-slide.active {
            opacity: 1;
            position: relative;
        }

        .client-img {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 20px;
            border: 3px solid var(--secondary-color);
        }

        .quote {
            font-style: italic;
            font-size: 1.1rem;
            margin-bottom: 20px;
            color: #555;
        }

        .client-name {
            font-weight: 700;
            color: var(--primary-color);
        }

        /* --- FOOTER --- */
        footer {
            background: #1a252f;
            color: #bdc3c7;
            padding-top: 60px;
        }

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

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

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

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

        .social-icons a {
            display: inline-flex;
            width: 35px;
            height: 35px;
            background: #34495e;
            color: var(--white);
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            margin-right: 10px;
            transition: var(--transition);
        }

        .social-icons a:hover {
            background: var(--secondary-color);
            transform: translateY(-3px);
        }

        .newsletter-form .form-group {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .newsletter-form input[type="text"],
        .newsletter-form input[type="email"],
        .newsletter-form input[type="date"] {
            padding: 10px;
            border: none;
            border-radius: 4px;
        }

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

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

        .footer-bottom {
            border-top: 1px solid #34495e;
            padding: 20px 0;
            text-align: center;
            font-size: 0.9rem;
        }

        .footer-links a {
            margin: 0 10px;
            color: #bdc3c7;
        }
        
        .footer-links a:hover {
            color: var(--secondary-color);
        }

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

        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
            100% { transform: translateY(0px); }
        }

        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.8s ease-out;
        }

        .reveal.active {
            opacity: 1;
            transform: translateY(0);
        }

        /* --- RESPONSIVE --- */
        @media (max-width: 768px) {
            .hero h1 { font-size: 2.5rem; }
            .hero-btns { flex-direction: column; }
            
            .nav-menu {
                position: fixed;
                top: 80px;
                right: -100%;
                width: 70%;
                height: calc(100vh - 80px);
                background: var(--white);
                flex-direction: column;
                justify-content: flex-start;
                padding-top: 40px;
                box-shadow: -5px 0 15px rgba(0,0,0,0.1);
                transition: var(--transition);
            }

            .nav-menu.active { right: 0; }
            .mobile-toggle { display: block; }
            
            .about-grid { grid-template-columns: 1fr; }
            .about-img { order: -1; }
        }
    


    /* Modal Styles */
    .modal {
      display: none; /* Hidden by default */
      position: fixed;
      z-index: 1000;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      overflow: auto;
      background-color: rgba(0,0,0,0.5);
      justify-content: center;
      align-items: center;
    }

    .modal-content {
      background-color: #fff;
      padding: 20px;
      border-radius: 8px;
      max-width: 900px;
      width: 90%;
      box-shadow: 0 5px 15px rgba(0,0,0,0.3);
      position: relative;
      animation: fadeIn 0.3s;
    }

    @keyframes fadeIn {
      from {opacity: 0; transform: translateY(-20px);}
      to {opacity: 1; transform: translateY(0);}
    }

    .close {
      position: absolute;
      top: 10px;
      right: 15px;
      color: #aaa;
      font-size: 28px;
      font-weight: bold;
      cursor: pointer;
      transition: color 0.2s;
    }

    .close:hover {
      color: #000;
    }

    /* Scrollable content if long */
    .modal-content p {
      max-height: 400px;
      overflow-y: auto;
    }

    a.email-link {
      color: #007BFF;
      text-decoration: none;
    }

    a.email-link:hover {
      text-decoration: underline;
    }