body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #111;
    color: #f5f5f5;
}

header {
    background: #00A5E3;
    padding: 30px;
    text-align: center;
}

nav {
    display: flex;
    justify-content: center;
    background: #222;
    padding: 10px;
}

nav a {
    color: #f5f5f5;
    text-decoration: none;
    margin: 0 15px;
    font-weight: bold;
}

nav a:hover {
    color: #e63946;
}

.hero {
    background: linear-gradient(to right, #000, #333);
    padding: 60px 20px;
    text-align: center;
}

section {
    padding: 40px 20px;
    max-width: 1000px;
    margin: auto;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    background: #222;
    padding: 20px;
    border-radius: 8px;
}

ul {
    list-style-type: square;
    padding-left: 20px;
}

footer {
    background: #000;
    text-align: center;
    padding: 15px;
    margin-top: 30px;
}