@media (max-width: 760px) {
  .site-header {
    backdrop-filter: none;
  }

  .nav-toggle {
    position: relative;
    display: block;
    width: 44px;
    height: 44px;
    margin-left: auto;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--text);
    cursor: pointer;
  }

  .nav-toggle span {
    position: absolute;
    left: 10px;
    display: block;
    width: 24px;
    height: 2px;
    margin: 0;
    border-radius: 2px;
    background: currentColor;
    transition: top 0.2s ease, transform 0.2s ease, opacity 0.15s ease;
  }

  .nav-toggle span:nth-child(1) { top: 13px; }
  .nav-toggle span:nth-child(2) { top: 21px; }
  .nav-toggle span:nth-child(3) { top: 29px; }

  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    top: 21px;
    transform: rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    top: 21px;
    transform: rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    z-index: 11;
    inset: 64px 0 0;
    margin: 0;
    padding: 28px 24px max(28px, env(safe-area-inset-bottom));
    overflow-y: auto;
    background: var(--bg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-toggle span {
    transition: none;
  }
}