.herbie-booking-grid { display: grid; grid-template-columns: minmax(0,1.65fr) minmax(280px,1fr); gap: 28px; align-items: start; }
.herbie-booking-summary { position: sticky; top: 96px; }
.herbie-booking-total { margin-bottom: 24px; color: var(--herbie-primary); font-size: clamp(28px,3vw,36px); font-weight: 750; line-height: 1.2; }
@media (max-width: 900px) {
.herbie-booking-grid { grid-template-columns: minmax(0,1fr); }
.herbie-booking-summary { position: static; grid-row: 1; }
}