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

        body {
            font-family: 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #fafafa;
        }

        /* Header */
        .header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid #eee;
        }

        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 2rem;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 300;
            color: #2c3e50;
            letter-spacing: 2px;
        }

        .nav-list {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-list a {
            color: #2c3e50;
            text-decoration: none;
            font-weight: 300;
            transition: color 0.3s ease;
            position: relative;
        }

        .nav-list a:hover {
            color: #4fc4cb;
        }

        .nav-list a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 1px;
            bottom: -5px;
            left: 0;
            background-color: #4fc4cb;
            transition: width 0.3s ease;
        }

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

        /* Hero Section */
        .hero {
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(79, 196, 203, 0.1), rgba(0, 160, 174, 0.1));
            text-align: center;
            position: relative;
        }

        .hero-content {
            max-width: 1200px;
            padding: 0 2rem;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 100;
            margin-bottom: 1.5rem;
            color: #2c3e50;
            letter-spacing: 3px;
        }

        .hero p {
            font-size: 1.2rem;
            margin-bottom: 3rem;
            color: #7f8c8d;
            font-weight: 300;
            line-height: 1.8;
        }

        .minimal-btn {
            background: transparent;
            color: #4fc4cb;
            border: 2px solid #4fc4cb;
            padding: 1rem 3rem;
            font-size: 1rem;
            font-weight: 300;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            letter-spacing: 1px;
        }

        .minimal-btn:hover {
            background: #4fc4cb;
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(79, 196, 203, 0.3);
        }

        /* Container */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* Card Layout */
        .card-section {
            padding: 5rem 0;
        }

        .card {
            background: white;
            border-radius: 15px;
            padding: 4rem;
            margin-bottom: 3rem;
            box-shadow: 0 5px 30px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
        }

        .card-title {
            font-size: 2.5rem;
            font-weight: 100;
            color: #2c3e50;
            margin-bottom: 2rem;
            text-align: center;
            letter-spacing: 2px;
        }

        .card-subtitle {
            font-size: 1.8rem;
            font-weight: 300;
            color: #7f8c8d;
            margin-bottom: 2rem;
            text-align: center;
        }

        /* About Card */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .about-text {
            font-size: 1.1rem;
            line-height: 1.8;
            color: #7f8c8d;
            font-weight: 300;
        }

        .about-image {
            height: 300px;
            background: linear-gradient(45deg, #ecf0f1, #bdc3c7);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #95a5a6;
            font-size: 1.2rem;
        }

        /* Services Grid */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .service-card {
            background: #f8f9fa;
            padding: 2.5rem 2rem;
            border-radius: 10px;
            text-align: center;
            transition: all 0.3s ease;
            border: 1px solid #ecf0f1;
        }

        .service-card:hover {
            background: white;
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            color: #4fc4cb;
        }

        .service-card h3 {
            font-size: 1.3rem;
            font-weight: 400;
            color: #2c3e50;
            margin-bottom: 1rem;
        }

        .service-card p {
            color: #7f8c8d;
            font-weight: 300;
            line-height: 1.6;
        }

        /* Features */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
            gap: 3rem;
        }

        .feature {
            text-align: center;
        }

        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #4fc4cb, #00a0ae);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            margin: 0 auto 1.5rem;
        }

        .feature h3 {
            font-size: 1.3rem;
            font-weight: 400;
            color: #2c3e50;
            margin-bottom: 1rem;
        }

        .feature p {
            color: #7f8c8d;
            font-weight: 300;
            line-height: 1.6;
        }

        /* Warranty */
        .warranty-card {
            background: linear-gradient(135deg, #4fc4cb 0%, #00a0ae 100%);
            color: white;
            text-align: center;
        }

        .warranty-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }

        .warranty-item {
            padding: 2rem;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 10px;
            backdrop-filter: blur(10px);
        }

        .warranty-item h4 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
            font-weight: 400;
        }

        .warranty-item p {
            font-weight: 300;
            opacity: 0.9;
        }

        /* Contact Form */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
        }

        .contact-info h3 {
            font-size: 1.5rem;
            color: #2c3e50;
            margin-bottom: 2rem;
            font-weight: 300;
        }

        .contact-item {
            margin-bottom: 1.5rem;
            padding: 1rem 0;
            border-bottom: 1px solid #ecf0f1;
        }

        .contact-item:last-child {
            border-bottom: none;
        }

        .contact-label {
            font-weight: 400;
            color: #2c3e50;
            margin-bottom: 0.5rem;
        }

        .contact-value {
            color: #7f8c8d;
            font-weight: 300;
        }

        .form-group {
            margin-bottom: 2rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: #2c3e50;
            font-weight: 300;
            letter-spacing: 1px;
        }

        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 1rem;
            border: 1px solid #ecf0f1;
            border-radius: 5px;
            font-size: 1rem;
            font-weight: 300;
            transition: border-color 0.3s ease;
            background: #fafafa;
        }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #4fc4cb;
            background: white;
        }

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

        /* Testimonials */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .testimonial {
            background: #f8f9fa;
            padding: 2.5rem;
            border-radius: 15px;
            position: relative;
            border: 1px solid #ecf0f1;
        }

        .testimonial::before {
            content: '"';
            position: absolute;
            top: 1rem;
            left: 2rem;
            font-size: 4rem;
            color: #4fc4cb;
            opacity: 0.3;
        }

        .testimonial-text {
            font-style: italic;
            margin-bottom: 2rem;
            font-size: 1.1rem;
            line-height: 1.7;
            color: #2c3e50;
            font-weight: 300;
        }

        .testimonial-author {
            font-weight: 400;
            color: #7f8c8d;
            text-align: right;
        }

        /* Footer */
        .footer {
            background: #2c3e50;
            color: white;
            padding: 4rem 0 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }

        .footer-section h4 {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            font-weight: 400;
            color: #ecf0f1;
        }

        .footer-section a {
            color: #95a5a6;
            text-decoration: none;
            display: block;
            margin-bottom: 0.8rem;
            font-weight: 300;
            transition: color 0.3s ease;
        }

        .footer-section a:hover {
            color: #4fc4cb;
        }

        .footer-section p {
            color: #95a5a6;
            font-weight: 300;
            line-height: 1.6;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-weight: 300;
        }

        /* Popups */
        .popup-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(5px);
            z-index: 10000;
        }

        .popup {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: white;
            padding: 3rem;
            border-radius: 15px;
            max-width: 500px;
            width: 90%;
            max-height: 80vh;
            overflow-y: auto;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
        }

        .popup h3 {
            color: #2c3e50;
            margin-bottom: 2rem;
            font-weight: 300;
            font-size: 1.8rem;
        }

        .popup h4 {
            color: #2c3e50;
            margin: 1.5rem 0 0.5rem;
            font-weight: 400;
        }

        .popup p {
            color: #7f8c8d;
            line-height: 1.6;
            margin-bottom: 1rem;
            font-weight: 300;
        }

        .close-btn {
            position: absolute;
            top: 1rem;
            right: 1.5rem;
            background: none;
            border: none;
            font-size: 2rem;
            cursor: pointer;
            color: #95a5a6;
            transition: color 0.3s ease;
        }

        .close-btn:hover {
            color: #e74c3c;
        }

        .confirmation {
            display: none;
            background: linear-gradient(135deg, #00b894, #00cec9);
            color: white;
            padding: 1rem;
            border-radius: 5px;
            margin-top: 1rem;
            text-align: center;
            font-weight: 300;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                gap: 1rem;
            }

            .nav-list {
                gap: 1rem;
            }

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

            .card {
                padding: 2rem;
            }

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

            .popup {
                padding: 2rem;
            }
        }