body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: url('../images/hero-bg.jpg') no-repeat center center fixed;
    background-size: cover;
    color: white;
}
.hero {
    text-align: center;
    padding: 5rem 2rem;
    background-color: rgba(0, 0, 0, 0.5);
}
.tiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}
.tile {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 1rem;
    text-decoration: none;
    color: white;
    font-weight: bold;
    transition: background 0.3s ease;
}
.tile:hover {
    background: rgba(255, 255, 255, 0.3);
}