/* ==========================================================================
   HEADER SUBMENUS
   Child items from Appearance → Menus. On desktop (75em and up, where the
   navigation sits inline) they drop down in a dark panel under the parent,
   opened by hovering or by the parent's chevron. In the full-screen menu
   below 75em they open as an accordion under the parent.
   Markup comes from functions.php (strato_nav_item_output) and the fallback
   list in header.php; behaviour from assets/js/submenu.js.
   ========================================================================== */

/* The chevron button beside a parent link. */
.nav__subtoggle {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 1.75rem;
  height: 1.75rem;
  margin-left: 0.15rem;
  padding: 0;
  color: var(--color-cream);
  background: none;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  transition: color var(--t-fast), background-color var(--t-fast), border-color var(--t-fast);
}
.nav__subtoggle svg {
  width: 11px;
  height: 11px;
  transition: transform var(--t-mid);
}
.nav__subtoggle:hover,
.nav__subtoggle:focus-visible { color: var(--color-gold); }
.nav__subtoggle:focus-visible { outline: 1px solid var(--color-gold); outline-offset: 2px; }
.menu-item-has-children.is-open > .nav__subtoggle svg { transform: rotate(180deg); }

/* The list itself, before layout. */
.nav__submenu {
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav__list .nav__submenu a {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--color-cream);
}
.nav__list .nav__submenu a::after { content: none; }
.nav__subdesc {
  font-size: 0.74rem;
  letter-spacing: 0.02em;
  line-height: 1.35;
  color: var(--color-muted);
  transition: color var(--t-fast);
}
.nav__list .current-menu-parent > .nav__link,
.nav__list .current-menu-ancestor > .nav__link { color: var(--color-gold); }
.nav__list .nav__submenu .current-menu-item > a { color: var(--color-gold); }

/* --------------------------------------------------------------------------
   DESKTOP: dropdown panel
   -------------------------------------------------------------------------- */
@media (min-width: 75em) {
  .nav__list > .menu-item-has-children {
    position: relative;
    display: flex;
    align-items: center;
  }

  .nav__list > .menu-item-has-children > .nav__submenu {
    position: absolute;
    top: 100%;
    left: 50%;
    z-index: 10;
    min-width: 15.5rem;
    margin-top: 1.15rem;
    padding: 0.45rem;
    background: rgba(11, 18, 32, 0.98);
    border: 1px solid var(--color-navy-line);
    border-radius: var(--radius-lg);
    box-shadow: 0 28px 56px -24px rgba(0, 0, 0, 0.85);
    -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, 8px);
    transition: opacity var(--t-fast), transform var(--t-mid), visibility 0s linear 180ms;
  }
  /* A short gold line across the top of the panel. */
  .nav__list > .menu-item-has-children > .nav__submenu::after {
    content: "";
    position: absolute;
    top: -1px;
    left: 50%;
    width: 2.5rem;
    height: 2px;
    background: var(--color-gold);
    transform: translateX(-50%);
  }
  /* An invisible bridge over the gap, so the pointer can cross from the
     link to the panel without the panel closing. */
  .nav__list > .menu-item-has-children > .nav__submenu::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 100%;
    height: 1.3rem;
  }

  .nav__list > .menu-item-has-children.is-open > .nav__submenu {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
    transition: opacity var(--t-fast), transform var(--t-mid), visibility 0s;
  }

  @media (hover: hover) {
    .nav__list > .menu-item-has-children:hover > .nav__submenu {
      opacity: 1;
      visibility: visible;
      transform: translate(-50%, 0);
      transition: opacity var(--t-fast), transform var(--t-mid), visibility 0s;
    }
    .nav__list > .menu-item-has-children:hover > .nav__subtoggle { color: var(--color-gold); }
    .nav__list > .menu-item-has-children:hover > .nav__subtoggle svg { transform: rotate(180deg); }
  }

  .nav__list .nav__submenu a {
    padding: 0.65rem 0.95rem;
    white-space: nowrap;
    border-radius: var(--radius-md);
    transition: background-color var(--t-fast), color var(--t-fast);
  }
  .nav__list .nav__submenu a:hover,
  .nav__list .nav__submenu a:focus-visible {
    color: var(--color-gold-light);
    background: rgba(232, 163, 92, 0.08);
  }
  .nav__list .nav__submenu a:hover .nav__subdesc { color: var(--color-text); }
  .nav__list .nav__submenu a:focus-visible { outline: 1px solid var(--color-gold); outline-offset: -1px; }
  .nav__submenu li + li { margin-top: 1px; }

  /* A third level sits indented inside the same panel. */
  .nav__submenu .nav__submenu {
    margin: 0 0 0.35rem 0.95rem;
    padding-left: 0.35rem;
    border-left: 1px solid var(--color-navy-line);
  }
}

/* --------------------------------------------------------------------------
   FULL-SCREEN MENU: accordion
   -------------------------------------------------------------------------- */
@media (max-width: 74.99em) {
  .nav__list > .menu-item-has-children {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    column-gap: var(--space-sm);
    width: 100%;
  }

  .nav__subtoggle {
    width: 44px;
    height: 44px;
    margin-left: 0;
    border: 1px solid var(--color-navy-line);
  }
  .nav__subtoggle svg { width: 14px; height: 14px; }
  .menu-item-has-children.is-open > .nav__subtoggle {
    color: var(--color-gold);
    border-color: var(--color-gold);
  }

  .nav__list > .menu-item-has-children > .nav__submenu {
    display: none;
    flex-basis: 100%;
    margin: var(--space-2xs) 0 var(--space-2xs);
    padding-left: var(--space-md);
    border-left: 1px solid rgba(232, 163, 92, 0.5);
  }
  .nav__list > .menu-item-has-children.is-open > .nav__submenu {
    display: block;
    animation: submenu-in 320ms var(--ease);
  }

  .nav__list .nav__submenu a {
    justify-content: center;
    min-height: 44px;
    padding-block: 0.35rem;
    font-size: clamp(1.1rem, 1rem + 0.8vw, 1.4rem);
    color: var(--color-text);
  }
  .nav__list .nav__submenu a:hover { color: var(--color-gold); }
  .nav__subdesc { font-size: 0.8rem; }

  .nav__submenu .nav__submenu { padding-left: var(--space-sm); }
}

@keyframes submenu-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .nav__subtoggle svg,
  .nav__list > .menu-item-has-children > .nav__submenu { transition: none; animation: none; }
}