body {
    font-family: Arial;
    margin: 0;
}

header {
    background: #0a2540;
    color: white;
    padding: 15px;
    text-align: center;
}

nav a {
    margin: 10px;
    color: white;
    text-decoration: none;
}

.hero {
    background: #007bff;
    color: white;
    padding: 50px;
    text-align: center;
}

.menu {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.card {
    border: 1px solid #ddd;
    margin: 10px;
    padding: 20px;
    width: 200px;
    text-align: center;
}

button, .btn {
    background: #28a745;
    color: white;
    padding: 10px;
    border: none;
    display: inline-block;
    margin-top: 10px;
}

footer {
    background: #222;
    color: white;
    text-align: center;
    padding: 15px;
}