.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 30;
  width: min(780px, calc(100vw - 48px));
  padding-top: 14px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px) scale(.98);
  transform-origin: top center;
  transition: opacity .2s ease, transform .2s ease;
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0) scale(1);
}

.nav-dropdown-grid {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr minmax(220px, .9fr);
  gap: 28px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.nav-dropdown-grid::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, color-mix(in srgb, var(--mint) 82%, transparent), transparent 48%);
}

.nav-dropdown-grid > * {
  position: relative;
  z-index: 1;
  animation: navItemEnter .24s ease both;
}

.nav-dropdown-grid > *:nth-child(2) {
  animation-delay: .04s;
}

.nav-dropdown-grid > *:nth-child(3) {
  animation-delay: .08s;
}

.nav-dropdown-grid strong {
  display: block;
  margin-bottom: 12px;
  color: var(--ink);
  font-size: 15px;
}

.nav-dropdown-grid a:not(.btn) {
  display: block;
  padding: 7px 0;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 700;
  transition: color .16s ease, transform .16s ease;
}

.nav-dropdown-grid a:not(.btn):hover {
  transform: translateX(4px);
  color: var(--blue);
}

.nav-dropdown-grid aside {
  padding: 18px;
  border-radius: 10px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--mint) 86%, #fff), var(--paper));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--green) 16%, transparent);
}

.nav-dropdown-grid aside p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

@keyframes navItemEnter {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-dropdown,
  .nav-dropdown-grid > * {
    animation: none;
    transition: none;
  }
}

@media (max-width: 980px) {
  .nav-dropdown {
    left: 0;
    width: min(720px, calc(100vw - 32px));
    transform: translate(0, 8px) scale(.98);
  }

  .nav-item:hover .nav-dropdown,
  .nav-item:focus-within .nav-dropdown {
    transform: translate(0, 0) scale(1);
  }
}

@media (max-width: 680px) {
  .nav-dropdown {
    display: none;
  }
}