body {
    font-family: system-ui, sans-serif;
    margin: 0;
    padding: 0;
    background: #f8f9fa;
    color: #222;
}

header {
    text-align: center;
    padding: 2rem 1rem;
    background: #2d2f3a;
    color: #fff;
}

header h1 {
    margin: 0;
    font-size: 2rem;
}

main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
    max-width: 1000px;
    margin: auto;
}

.tile {
    background: #fff;
    border-radius: 12px;
    padding: 2rem 1.5rem;
    text-align: center;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.tile:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 18px rgba(0,0,0,0.12);
}

.tile h2 {
    margin: 0 0 0.5rem;
    font-size: 1.25rem;
}

.tile p {
    margin: 0;
    font-size: 0.95rem;
    color: #555;
}