body {
    margin: 0;
    font-family: Arial;
    background: #f4f6f9;
    text-align: center;
}

header {
    background: #111;
    color: white;
    padding: 20px;
}

.hero {
    padding: 100px 20px;
}

.hero h1 {
    font-size: 40px;
}

button {
    padding: 15px 30px;
    background: #007bff;
    border: none;
    color: white;
    cursor: pointer;
    margin-top: 20px;
}

.cards {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 40px;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

footer {
    margin-top: 50px;
    padding: 20px;
}