/* Global */
body {
    font-family: 'Open Sans', Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f9f9f9;
}

/* Header */
header {
    background-color: #004080;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}
header .logo {
    width: 120px;
    margin-bottom: 10px;
}
header nav a {
    color: #fff;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
}
header nav a:hover {
    text-decoration: underline;
}

/* Sections */
section {
    max-width: 1000px;
    margin: 50px auto;
    padding: 0 20px;
}
section h2 {
    color: #004080;
    margin-bottom: 20px;
}
section h3 {
    color: #0066cc;
    margin-top: 40px;
    margin-bottom: 20px;
}

/* Product Cards */
.product-category {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.product-card {
    background: #fff;
    border-radius: 5px;
    width: 30%;
    margin-bottom: 20px;
    padding: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    text-align: center;
}
.product-card img {
    width: 100%;
    height: auto;
    margin-bottom: 10px;
}
.product-card p {
    font-weight: bold;
    color: #004080;
}

/* Contact Section */
section#contact p a {
    color: #004080;
    text-decoration: none;
}
section#contact p a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background-color: #e0e0e0;
    text-align: center;
    padding: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .product-card {
        width: 48%;
    }
}
@media (max-width: 480px) {
    .product-card {
        width: 100%;
    }
}