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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f9f9f9;
}

header {
    background-color: #1a1a1a;
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-img {
    max-width: 600px;
    height: auto;
}

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

nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover, nav a.active {
    color: #00aaff;
}

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

.hero {
    background-color: #004466;
    color: white;
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 3rem;
}

.hero-content {
    flex: 1;
}

.hero-img {
    max-width: 50%;
    height: auto;
    border-radius: 10px;
}

.features, .products, .product-detail, .contact {
    text-align: center;
}


.about {
    text-align: left;
}

.feature-grid, .product-grid, .testimonial-grid {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.feature, .product-card, .testimonial {
    flex: 1;
    min-width: 250px;
    background-color: white;
    padding: 1rem;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s;
}

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

.product-icon {
    max-width: 120px;
    height: auto;
    margin-bottom: 0.5rem;
}

.feature img {
    max-width: 160px;
    height: auto;
    margin-bottom: 1rem;
}

.testimonial-grid {
    margin-top: 1rem;
}

.certifications {
    margin-top: 1rem;
    text-align: center;
}

.cert-img {
    max-width: 100px;
    margin: 0.5rem;
}

.about-img, .product-img, .contact-img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin: 1rem 0;
}

.feature-list {
    text-align: left;
    max-width: 600px;
    margin: 1rem auto;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.5rem 0;
}

.feature-list img {
    max-width: 20px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 500px;
    margin: 1rem auto;
}

.contact-form input, .contact-form textarea {
    padding: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.contact-form input:focus, .contact-form textarea:focus {
    outline: 2px solid #00aaff;
}

.live-chat {
    margin: 1rem 0;
}

.cta-button {
    background-color: #00aaff;
    color: white;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    border-radius: 5px;
    display: inline-block;
    cursor: pointer;
}

.cta-button:hover {
    background-color: #0088cc;
}

footer {
    background-color: #1a1a1a;
    color: white;
    text-align: center;
    padding: 1rem;
}

/* Accessibility */
a:focus, button:focus {
    outline: 2px solid #00aaff;
    outline-offset: 2px;
}

/* Responsive Design */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        text-align: center;
    }

    nav ul {
        flex-direction: column;
        gap: 1rem;
    }

    .hero {
        flex-direction: column;
        text-align: center;
    }

    .hero-img {
        max-width: 100%;
    }

    .feature-grid, .product-grid, .testimonial-grid {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }

    .hero h1 {
        font-size: 1.5rem;
    }
}