@media (max-width: 760px) {
  .nav.is-open {
    display: flex;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    z-index: 10;
    padding: 22px;
    flex-direction: column;
    gap: 17px;
    background: var(--paper);
    box-shadow: 0 14px 25px rgba(20, 50, 45, 0.1);
  }
}