body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f4f4f4;
    color: #333;
}
header {
    background: #002f6c;
    color: white;
    padding: 10px 0;
}
.container {
    width: 90%;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    height: 60px;
}
nav a {
    color: white;
    margin: 0 10px;
    text-decoration: none;
}
main {
    padding: 20px;
}
section {
    margin-bottom: 40px;
}
.grid {
    display: flex;
    gap: 20px;
}
.producto img {
    width: 100%;
    max-width: 200px;
    height: auto;
}
footer {
    text-align: center;
    padding: 10px;
    background: #222;
    color: white;
}