.learning-nav-learn {
  position: static;
}

.nav-mega-panel.learning-nav-mega {
  width: min(68rem, calc(100vw - 2rem));
  min-width: 0;
  max-height: calc(100vh - 5.5rem);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
  overflow: auto;
  overscroll-behavior: contain;
}

.learning-nav-section {
  min-width: 0;
  padding: 0.3rem;
  border: 1px solid transparent;
  border-radius: 12px;
}

.learning-nav-section > summary {
  margin: 0 0 0.35rem;
  padding: 0.3rem 0.65rem;
  color: var(--brand-primary-soft);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  line-height: 1.35;
  list-style: none;
  text-transform: uppercase;
  cursor: default;
  user-select: none;
}

.learning-nav-section > summary::-webkit-details-marker {
  display: none;
}

.learning-nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.nav .learning-nav-links a {
  display: block;
  min-width: 0;
  padding: 0.58rem 0.65rem;
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 550;
  line-height: 1.35;
  text-wrap: balance;
  white-space: normal;
}

.nav .learning-nav-links a:hover {
  color: var(--text);
  background: rgba(var(--brand-primary-rgb), 0.1);
}

.learning-nav-learn > .nav-summary:focus-visible,
.learning-nav-section > summary:focus-visible,
.nav .learning-nav-links a:focus-visible {
  outline: 2px solid var(--brand-primary-soft);
  outline-offset: 2px;
}

@media (min-width: 921px) {
  .learning-nav-section > summary {
    pointer-events: none;
  }
}

@media (max-width: 920px) {
  .nav-panel.is-open {
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .learning-nav-learn {
    position: relative;
  }

  .nav-primary > .nav-dropdown,
  .nav-primary > a {
    width: 100%;
  }

  .nav-primary .nav-summary {
    width: 100%;
    justify-content: space-between;
  }

  .nav-primary .nav-mega-panel.learning-nav-mega {
    position: static;
    inset: auto;
    transform: none;
    width: 100%;
    max-height: none;
    grid-template-columns: 1fr;
    gap: 0.45rem;
    margin-top: 0.3rem;
    padding: 0.5rem;
    overflow: visible;
    box-shadow: none;
  }

  .learning-nav-section {
    padding: 0;
    border-color: rgba(var(--brand-primary-rgb), 0.16);
    background: rgba(var(--brand-primary-rgb), 0.035);
  }

  .learning-nav-section > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 2.75rem;
    margin: 0;
    padding: 0.7rem 0.8rem;
    cursor: pointer;
  }

  .learning-nav-section > summary::after {
    content: "";
    width: 0.42rem;
    height: 0.42rem;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
    transition: transform 0.18s ease;
  }

  .learning-nav-section[open] > summary::after {
    transform: rotate(225deg) translateY(-1px);
  }

  .learning-nav-links {
    gap: 0.1rem;
    padding: 0 0.35rem 0.45rem;
  }

  .nav .learning-nav-links a {
    min-height: 2.75rem;
    padding: 0.72rem 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .learning-nav-section > summary::after,
  .nav .learning-nav-links a {
    transition: none;
  }
}