body {
    font-family: Arial;
    margin: 0;
    background: #f4f4f4;
}

header {
    background: #4CAF50;
    color: white;
    padding: 15px;
    text-align: center;
}

nav {
    background: #333;
    padding: 10px;
    text-align: center;
}

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

nav a:hover {
    text-decoration: underline;
}

.cards {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    padding: 20px;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 15px;
    width: 230px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transition: 0.3s;
    text-decoration: none;
    color: black;
    display: block;
}

.card:hover {
    transform: translateY(-10px);
}

footer {
    text-align: center;
    padding: 15px;
}