body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #f4f4f4;
    color: #333;
}


header {
    background-color: #234a70;
    color: white;
    text-align: center;
    padding: 25px;
}


nav {
    background-color: #333;
    text-align: center;
    padding: 15px;
}


nav a {
    color: white;
    text-decoration: none;
    margin: 15px;
}


nav a:hover {
    color: #ddd;
}


.container {
    width: 80%;
    margin: auto;
    background-color: white;
    padding: 25px;
}


.hero {
    width: 100%;
}


.cards {
    display: flex;
    justify-content: space-between;
}


.card {
    width: 30%;
    text-align: center;
}


.card img {
    width: 100%;
}


footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 15px;
    margin-top: 20px;
}