@media (max-width: 780px) {
  .site-header .main-nav.mobile-open {
    position: absolute;
    top: 61px;
    right: 14px;
    left: 14px;
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 8px;
    background: #fffefa;
    border: 1px solid #dce3d8;
    border-radius: 14px;
    box-shadow: 0 14px 30px #17372a18;
  }

  .site-header .main-nav.mobile-open a { padding: 12px 14px; }
}