body {
    background: #0a0a0a;
    color: #ffffff;
    font-family: Arial;
    margin: 0;
}

nav {
    display: flex;
    justify-content: space-between;
    padding: 20px;
    background: #111;
}

nav a {
    margin-left: 20px;
    color: #00ffff;
    text-decoration: none;
}

.hero {
    text-align: center;
    padding: 100px;
}

h1 {
    font-size: 3rem;
}

.btn {
    background: #00ffff;
    color: black;
    padding: 10px 20px;
    text-decoration: none;
}

.card {
    background: #111;
    padding: 20px;
    margin: 20px;
    border-radius: 10px;
    transition: 0.3s;
}

.card:hover {
    transform: scale(1.05);
}