.mobile-nav {
  display: none;
  margin-left: auto;
  position: relative;
}

.mobile-nav summary {
  color: var(--teal);
  cursor: pointer;
  font-weight: 700;
  padding: 10px 12px;
}

.mobile-nav div {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 16px 36px #12333d24;
  display: grid;
  min-width: 210px;
  padding: 10px;
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
}

.mobile-nav a {
  border-radius: 8px;
  color: var(--ink);
  font-weight: 650;
  padding: 10px 12px;
  text-decoration: none;
}

.mobile-nav a:hover,
.mobile-nav a:focus-visible {
  background: var(--soft);
}

@media (max-width: 900px) {
  .mobile-nav { display: block; }
  .site-header .button { margin-left: 0; }
}

@media (max-width: 560px) {
  .site-header {
    gap: 8px;
    padding-left: 12px;
    padding-right: 12px;
  }

  .logo {
    font-size: 21px;
    letter-spacing: .02em;
  }

  .logo span {
    height: 34px;
    margin-right: 6px;
    width: 34px;
  }

  .mobile-nav summary { padding: 8px; }
  .site-header .button { padding: 10px 12px; }
}