body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    background-color: #0288d1;
    color: white;
    padding: 20px;
    text-align: center;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
}

.banner {
    text-align: center;
    padding: 50px;
    background-color: #03a9f4;
    color: white;
    font-size: 1.5em;
}

.productos {
    padding: 20px;
    text-align: center;
}

.grid {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.producto {
    background: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

footer {
    text-align: center;
    background-color: #0288d1;
    color: white;
    padding: 10px;
    position: relative;
    bottom: 0;
    width: 100%;
}