.menu {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  background: rgba(11, 11, 12, 0.75);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  padding: 9px 13px;
  text-transform: uppercase;
}

@media (max-width: 820px) {
  .navlinks.open {
    position: absolute;
    top: 68px;
    left: 20px;
    right: 20px;
    display: grid;
    gap: 0;
    max-height: calc(100vh - 88px);
    overflow-y: auto;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 18px;
    background: rgba(11, 11, 12, 0.98);
    box-shadow: 0 22px 60px rgba(0, 0, 0, 0.55);
  }
  .navlinks.open a { padding: 13px 12px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
  .navlinks.open a:last-child { border-bottom: 0; }
}