* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Verdana, Arial, sans-serif;
    background-color: #e6e6e6;
    color: #222;
    line-height: 1.5;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 20px auto;
    background-color: #ffffff;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

header {
    background-color: #003b95;
    padding: 15px 20px;
}

.logo {
    max-height: 70px;
    width: auto;
}

nav {
    background-color: #4da3ff;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 20px;
}

nav a {
    text-decoration: none;
    color: #000;
    padding: 8px 14px;
    font-weight: bold;
    border-radius: 4px;
}

nav a:hover,
nav a.active {
    background-color: #003b95;
    color: #fff;
}

section {
    background-color: #ffffff;
    padding: 20px;
}

.two-columns {
    display: flex;
    gap: 20px;
    align-items: stretch;
}

.two-columns article {
    flex: 1;
}

article {
    background-color: #ffffff;
    border: 1px solid #d9d9d9;
    padding: 15px;
}

article h1,
article h2 {
    margin-top: 0;
    color: #003b95;
}

.image-article {
    display: flex;
    align-items: center;
    justify-content: center;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.product-card img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    margin-bottom: 10px;
}

.product-card h2 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.product-card p {
    margin: 6px 0;
    font-size: 0.95rem;
}

footer {
    background-color: #000;
    color: #fff;
    padding: 14px 20px;
    font-size: 0.95rem;
}

@media (max-width: 900px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 700px) {
    .two-columns {
        flex-direction: column;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    nav {
        flex-direction: column;
        align-items: flex-start;
    }

    .container {
        width: 95%;
    }
}