@media (min-width: 768px) {
    .features { grid-template-columns: repeat(2, 1fr); }
    .price-group { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
    .features { grid-template-columns: repeat(3, 1fr); }
    .banner h1 { font-size: 56px; }
    .title { font-size: 42px; }
}