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

    :root {
        --primary-red: #d32f2f;
        --dark-red: #b71c1c;
        --black: #111111;
        --dark-gray: #1a1a1a;
        --white: #ffffff;
        --light-gray: #f5f5f5;
        --gradient-red: linear-gradient(135deg, #d32f2f, #b71c1c);
        --gradient-dark: linear-gradient(145deg, #1a1a1a, #2c2c2c);
        --shadow: 0 10px 30px rgba(0,0,0,0.1);
        --transition: all 0.3s ease;
    }

    body {
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        line-height: 1.6;
        color: #333;
        overflow-x: hidden;
    }

    /* Navigation */
    .navbar {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: var(--black);
        box-shadow: var(--shadow);
        padding: 1rem 5%;
    }

    .nav-container {
        max-width: 1400px;
        margin: 0 auto;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--white);
        text-decoration: none;
        font-size: 1.5rem;
        font-weight: bold;
    }

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

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

    .nav-links a {
        color: var(--white);
        text-decoration: none;
        font-weight: 500;
        transition: var(--transition);
    }

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

    .hamburger {
        display: none;
        font-size: 1.8rem;
        color: var(--white);
        cursor: pointer;
        background: none;
        border: none;
    }

    /* Mobile Menu */
    .mobile-menu {
        display: none;
        background: var(--dark-gray);
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        z-index: 999;
    }

    .mobile-menu.show {
        display: flex;
    }

    .mobile-menu a {
        color: var(--white);
        text-decoration: none;
        padding: 0.8rem;
        transition: var(--transition);
        border-radius: 5px;
    }

    .mobile-menu a:hover {
        background: var(--primary-red);
    }

    /* Hero Slider */
    .hero {
        position: relative;
        height: 90vh;
        min-height: 500px;
        overflow: hidden;
    }

    .slide {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        opacity: 0;
        transition: opacity 1s ease-in-out;
        background-size: cover;
        background-position: center;
    }

    .slide.active {
        opacity: 1;
    }

    .slide::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0,0,0,0.6);
    }

    .slide-content {
        position: relative;
        z-index: 2;
        text-align: center;
        color: var(--white);
        top: 50%;
        transform: translateY(-50%);
        padding: 0 1rem;
    }

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

    .slide-content p {
        font-size: 1.2rem;
    }

    /* Stats Section */
    .stats {
        background: var(--gradient-dark);
        padding: 4rem 5%;
        color: var(--white);
    }

    .stats-container {
        max-width: 1200px;
        margin: 0 auto;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 2rem;
        text-align: center;
    }

    .stat-item h3 {
        font-size: 2.5rem;
        color: var(--primary-red);
    }

    /* About Section */
    .about {
        padding: 5rem 5%;
        background: var(--white);
    }

    .about-container {
        max-width: 1200px;
        margin: 0 auto;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
        align-items: center;
    }

    .about-text h2 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
        color: var(--black);
    }

    .services-badges {
        display: flex;
        flex-wrap: wrap;
        gap: 0.8rem;
        margin: 1.5rem 0;
    }

    .badge {
        background: var(--gradient-red);
        color: var(--white);
        padding: 0.5rem 1rem;
        border-radius: 25px;
        font-size: 0.9rem;
    }

    .contact-details {
        margin-top: 1.5rem;
        padding-top: 1.5rem;
        border-top: 2px solid #eee;
    }

    .contact-details p {
        margin: 0.5rem 0;
    }

    .about-image img {
        width: 100%;
        border-radius: 10px;
        box-shadow: var(--shadow);
        object-fit: cover;
    }

    /* Products Section */
    .products {
        padding: 5rem 5%;
        background: var(--light-gray);
    }

    .products h2 {
        text-align: center;
        font-size: 2.5rem;
        margin-bottom: 2rem;
        color: var(--black);
    }

    .featured-banner {
        background: var(--gradient-red);
        padding: 1rem;
        text-align: center;
        border-radius: 10px;
        margin-bottom: 2rem;
        color: var(--white);
    }

    .category-title {
        font-size: 1.8rem;
        margin: 2rem 0 1rem;
        color: var(--primary-red);
        border-left: 4px solid var(--primary-red);
        padding-left: 1rem;
    }

    .category-title:first-of-type {
        margin-top: 0;
    }

    .products-grid {
        max-width: 1400px;
        margin: 0 auto;
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 1.5rem;
    }

    .product-card {
        background: var(--white);
        border-radius: 10px;
        overflow: hidden;
        box-shadow: var(--shadow);
        transition: var(--transition);
    }

    .product-card:hover {
        transform: translateY(-5px);
    }

    .product-card img {
        width: 100%;
        height: 200px;
        object-fit: cover;
    }

    .product-info {
        padding: 1rem;
    }

    .product-info h3 {
        font-size: 1.2rem;
        margin-bottom: 0.5rem;
    }

    .product-info p {
        color: #666;
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }

    .price {
        font-size: 1.3rem;
        font-weight: bold;
        color: var(--primary-red);
        margin: 0.5rem 0;
    }

    .product-buttons {
        display: flex;
        gap: 0.5rem;
        margin-top: 1rem;
    }

    .btn-wa, .btn-call {
        flex: 1;
        padding: 0.5rem;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        font-weight: bold;
        transition: var(--transition);
    }

    .btn-wa {
        background: #25D366;
        color: white;
    }

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

    .btn-wa:hover, .btn-call:hover {
        transform: scale(1.05);
    }

    /* Contact Section */
    .contact {
        padding: 5rem 5%;
        background: var(--white);
    }

    .contact-container {
        max-width: 1200px;
        margin: 0 auto;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
    }

    .contact-info {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 1rem;
    }

    .info-card {
        background: var(--light-gray);
        padding: 1.5rem;
        border-radius: 10px;
        text-align: center;
    }

    .info-card i {
        font-size: 2rem;
        color: var(--primary-red);
        margin-bottom: 1rem;
    }

    .contact-form {
        background: var(--light-gray);
        padding: 2rem;
        border-radius: 10px;
    }

    .contact-form input,
    .contact-form textarea {
        width: 100%;
        padding: 0.8rem;
        margin-bottom: 1rem;
        border: 1px solid #ddd;
        border-radius: 5px;
    }

    .contact-form button {
        width: 100%;
        padding: 1rem;
        background: var(--gradient-red);
        color: white;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        font-weight: bold;
    }

    /* Modal */
    .modal {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.8);
        z-index: 2000;
        justify-content: center;
        align-items: center;
    }

    .modal-content {
        background: white;
        padding: 2rem;
        border-radius: 10px;
        max-width: 500px;
        width: 90%;
        max-height: 90vh;
        overflow-y: auto;
    }

    .modal-content h3 {
        margin-bottom: 1rem;
    }

    .modal-content input,
    .modal-content textarea {
        width: 100%;
        padding: 0.8rem;
        margin-bottom: 1rem;
        border: 1px solid #ddd;
        border-radius: 5px;
    }

    .close-modal {
        float: right;
        font-size: 1.5rem;
        cursor: pointer;
    }

    /* Floating Buttons */
    .floating-buttons {
        position: fixed;
        bottom: 2rem;
        right: 2rem;
        display: flex;
        flex-direction: column;
        gap: 1rem;
        z-index: 1000;
    }

    .float-btn {
        width: 55px;
        height: 55px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        text-decoration: none;
        transition: transform 0.3s;
        box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    }

    .float-btn:hover {
        transform: scale(1.1);
    }

    .float-wa {
        background: #25D366;
    }

    .float-call {
        background: var(--primary-red);
    }

    /* Footer */
    .footer {
        background: var(--black);
        color: var(--white);
        padding: 3rem 5% 1rem;
    }

    .footer-container {
        max-width: 1200px;
        margin: 0 auto;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 2rem;
    }

    .footer-section h4 {
        margin-bottom: 1rem;
        color: var(--primary-red);
    }

    .footer-section a {
        color: var(--white);
        text-decoration: none;
        display: block;
        margin: 0.5rem 0;
        transition: var(--transition);
    }

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

    .social-icons {
        display: flex;
        gap: 1rem;
        margin-top: 1rem;
    }

    .social-icons a {
        font-size: 1.5rem;
    }

    .copyright {
        text-align: center;
        padding-top: 2rem;
        margin-top: 2rem;
        border-top: 1px solid #333;
    }

    /* Image Loading Optimization */
.product-card img,
.about-image img,
.hero .slide {
    background-color: #f0f0f0;
}

/* Lazy loading animation */
.product-card img[loading="lazy"],
.about-image img[loading="lazy"] {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Image loaded state */
.product-card img.loaded,
.about-image img.loaded {
    animation: none;
    background: none;
}

    @media (max-width: 768px) {
        .nav-links {
            display: none;
        }
        .hamburger {
            display: block;
        }
        .about-container {
            grid-template-columns: 1fr;
        }
        .slide-content h1 {
            font-size: 2rem;
        }
        .products-grid {
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        }
    }