/**
 * Desktop mega menu — Main Menu walker (lg+)
 * Container-bound panel, precise hover, 80vh scroll, attribute deep links.
 */

@media (min-width: 992px) {
  #masthead.site-header,
  #nav-main,
  #nav-main .offcanvas,
  #nav-main .offcanvas-body {
    overflow: visible;
  }

  /* Anchor mega panels to the header container, not the full viewport. */
  #nav-main > .container {
    position: relative;
    overflow: visible;
  }

  /*
   * Mega parents must stay position:static so the panel's absolute
   * left/right stretch to the container — not the narrow nav link.
   * Only non-mega top-level items get relative stacking.
   */
  #bootscore-navbar > .nav-item:not(.mega-dropdown) {
    position: relative;
    z-index: 2;
  }

  #nav-main .mega-dropdown,
  #bootscore-navbar > .mega-dropdown {
    position: static;
  }

  #nav-main .mega-menu.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    min-width: 100%;
    max-width: 100%;
    max-height: 80vh;
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    border-top: 1px solid var(--bs-border-color);
    box-shadow: 0 0.75rem 1.5rem rgba(0, 0, 0, 0.08);
    background-color: var(--bs-body-bg);
    z-index: 1;
  }

  #nav-main .mega-menu.dropdown-menu.show,
  #nav-main .mega-dropdown.is-open > .mega-menu {
    display: block;
  }

  #nav-main .mega-menu__scroll {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    max-height: 80vh;
    padding: 1.25rem calc(var(--bs-gutter-x, 1.5rem) * 0.5) 1.5rem;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  #nav-main .mega-menu__nav {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(11.5rem, 1fr));
    gap: 1.25rem 1.75rem;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  #nav-main .mega-menu__column,
  #nav-main .mega-menu__item {
    break-inside: avoid;
    list-style: none;
  }

  #nav-main .mega-menu__heading {
    display: block;
    margin-bottom: 0.5rem;
    padding: 0;
    font-weight: 600;
    color: var(--bs-body-color);
    text-decoration: none;
  }

  #nav-main .mega-menu__heading:hover,
  #nav-main .mega-menu__heading:focus,
  #nav-main .mega-menu__heading.active {
    color: var(--bs-primary);
  }

  #nav-main .mega-menu__list {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  #nav-main .mega-menu .dropdown-item {
    padding: 0.35rem 0;
    white-space: normal;
  }

  #nav-main .mega-dropdown > .dropdown-toggle::after {
    vertical-align: 0.15em;
  }

  #nav-main .mega-dropdown.is-open > .dropdown-toggle {
    color: var(--bs-primary);
  }

  /* Attribute deep-link panel — typographic, matches menu columns */
  #nav-main .mega-menu__attrs {
    flex: 0 0 auto;
    padding-top: 1.15rem;
    border-top: 1px solid var(--bs-border-color);
  }

  #nav-main .mega-menu__attrs-toolbar {
    position: sticky;
    top: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.15rem;
    background: var(--bs-body-bg);
  }

  #nav-main .mega-menu__attrs-toolbar::before {
    content: "Shop by";
    flex: 0 0 auto;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--bs-secondary-color);
  }

  #nav-main .mega-menu__attrs-search {
    flex: 1 1 auto;
    max-width: 16rem;
    margin-left: auto;
    padding: 0.35rem 0;
    font-size: 0.875rem;
    color: var(--bs-body-color);
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--bs-border-color);
    border-radius: 0;
    box-shadow: none;
  }

  #nav-main .mega-menu__attrs-search:focus {
    border-bottom-color: var(--bs-primary);
    box-shadow: none;
    outline: 0;
  }

  #nav-main .mega-menu__attrs-search::placeholder {
    color: var(--bs-secondary-color);
    opacity: 0.85;
  }

  #nav-main .mega-menu__attrs-groups {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(10.5rem, 1fr));
    gap: 1.25rem 1.75rem;
  }

  #nav-main .mega-menu__attrs-label {
    margin: 0 0 0.55rem;
    padding-bottom: 0.35rem;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--bs-secondary-color);
    border-bottom: 1px solid var(--bs-border-color);
  }

  #nav-main .mega-menu__attrs-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  #nav-main .mega-menu__attr-link {
    display: block;
    padding: 0.28rem 0;
    font-size: 0.875rem;
    line-height: 1.35;
    color: var(--bs-body-color);
    text-decoration: none;
    background: none;
    border: 0;
    border-radius: 0;
  }

  #nav-main .mega-menu__attr-link:hover,
  #nav-main .mega-menu__attr-link:focus {
    color: var(--bs-primary);
    background: none;
    text-decoration: underline;
    text-underline-offset: 0.18em;
  }

  #nav-main .mega-menu__attrs-item.is-hidden,
  #nav-main .mega-menu__attrs-group.is-hidden {
    display: none !important;
  }

  #nav-main .mega-menu__attrs-empty {
    margin: 0.35rem 0 0;
    font-size: 0.875rem;
    color: var(--bs-secondary-color);
  }
}

@media (max-width: 991.98px) {
  #offcanvas-navbar .mega-menu.dropdown-menu {
    position: static;
    float: none;
    width: 100%;
    max-height: none;
    margin-top: 0;
    padding: 0;
    border: 0;
    box-shadow: none;
  }

  #offcanvas-navbar .mega-menu__scroll {
    padding: 0;
  }

  #offcanvas-navbar .mega-menu__nav {
    margin: 0;
    padding: 0;
    list-style: none;
  }

  #offcanvas-navbar .mega-menu__heading {
    display: block;
    padding: 0.5rem 1rem;
    font-weight: 600;
    color: var(--bs-body-color);
    text-decoration: none;
  }

  #offcanvas-navbar .mega-menu__list {
    margin: 0;
    padding: 0 0 0.5rem 1rem;
    list-style: none;
  }

  #offcanvas-navbar .mega-menu__attrs {
    padding: 0.85rem 1rem 1.1rem;
    border-top: 1px solid var(--bs-border-color);
  }

  #offcanvas-navbar .mega-menu__attrs-toolbar {
    margin-bottom: 0.85rem;
  }

  #offcanvas-navbar .mega-menu__attrs-toolbar::before {
    content: "Shop by";
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--bs-secondary-color);
  }

  #offcanvas-navbar .mega-menu__attrs-search {
    width: 100%;
    padding: 0.4rem 0;
    font-size: 0.875rem;
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--bs-border-color);
    border-radius: 0;
    box-shadow: none;
  }

  #offcanvas-navbar .mega-menu__attrs-groups {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  #offcanvas-navbar .mega-menu__attrs-label {
    margin-bottom: 0.35rem;
    padding-bottom: 0.3rem;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--bs-secondary-color);
    border-bottom: 1px solid var(--bs-border-color);
  }

  #offcanvas-navbar .mega-menu__attrs-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  #offcanvas-navbar .mega-menu__attr-link {
    display: block;
    padding: 0.35rem 0;
    font-size: 0.9375rem;
    color: var(--bs-body-color);
    text-decoration: none;
    background: none;
  }

  #offcanvas-navbar .mega-menu__attrs-item.is-hidden,
  #offcanvas-navbar .mega-menu__attrs-group.is-hidden {
    display: none !important;
  }
}