@media (max-width: 1040px) {
  .site-header .site-nav[data-open="true"] {
    position: absolute;
    top: 100%;
    left: auto;
    right: 12px;
    width: min(720px, calc(100vw - 24px));
    padding: 12px;
    border-radius: 20px;
  }
  .site-header .site-nav ul {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px;
    padding: 0;
  }
  .site-header .site-nav a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 8px;
    border: 0;
    border-radius: 12px;
    background: #f0f6f9;
    text-align: center;
  }
}

@media (max-width: 600px) {
  .site-header .site-nav ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-header .site-nav li:nth-child(odd):last-child { grid-column: 1 / -1; }
}