/* ==========================================================================
   IDEAL PERFECTION — RESPONSIVE NAVIGATION
   Hamburger + slide-down panel with collapsible (accordion) submenus,
   active up to 1100px. Loaded last so it overrides older nav rules.
   ========================================================================== */

/* Submenu toggle buttons are injected by main.js; hidden on desktop. */
.submenu-toggle { display: none; }

@media (max-width: 1100px) {
  /* --- Header bar --- */
  .nav-wrap { min-height: 68px; gap: 12px; }

  .brand-text { display: flex; }
  .brand-tag { display: block; }

  .menu-toggle {
    display: inline-flex;
    flex-shrink: 0;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
  }

  .menu-toggle:hover,
  .menu-toggle[aria-expanded="true"] {
    background: var(--pale-blue);
    border-color: var(--pale-blue);
  }

  .menu-toggle:focus-visible,
  .submenu-toggle:focus-visible {
    outline: 2px solid var(--brand-ink);
    outline-offset: 2px;
  }

  /* --- Slide-down panel --- */
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 14px;
    max-height: calc(100vh - var(--nav-offset, 68px));
    max-height: calc(100dvh - var(--nav-offset, 68px));
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    padding: 14px max(16px, calc((100% - 760px) / 2)) calc(24px + env(safe-area-inset-bottom, 0px));
    background: #ffffff;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 48px -12px rgba(10, 31, 60, 0.22);
    white-space: normal;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0s linear 0.22s;
  }

  .nav-links.open {
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0s;
  }

  /* --- Top-level items --- */
  .nav-menu {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 2px;
  }

  .nav-menu li,
  .nav-menu > li {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-start;
    width: 100%;
    text-align: left;
  }

  .nav-menu > li > a,
  .nav-links a:not(.btn) {
    flex: 1 1 0;
    min-width: 0;
    display: flex;
    justify-content: flex-start;
    width: auto;
    padding: 13px 14px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
    white-space: normal;
    line-height: 1.35;
    border: none;
    border-radius: 12px;
  }

  .nav-menu > li > a::before,
  .nav-menu > li > a::after { display: none !important; }

  .nav-menu > li > a:hover,
  .nav-links a:not(.btn):hover { background: var(--pale); color: var(--navy); }

  .nav-menu > li.current-menu-item > a,
  .nav-menu > li.current_page_item > a,
  .nav-menu > li.current-menu-ancestor > a,
  .nav-menu > li.current-menu-parent > a {
    background: var(--pale-blue);
    color: var(--brand-ink);
  }

  /* --- Submenu toggle (chevron button) --- */
  .submenu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    margin-left: 4px;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #ffffff;
    color: var(--brand-ink);
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
  }

  .submenu-toggle svg {
    width: 16px;
    height: 16px;
    transition: transform 0.25s ease;
  }

  .submenu-toggle:hover { background: var(--pale-blue); }

  .submenu-open > .submenu-toggle {
    background: var(--pale-blue);
    border-color: var(--pale-blue);
  }

  .submenu-open > .submenu-toggle svg { transform: rotate(180deg); }

  /* --- Submenus (collapsed by default) --- */
  .nav-menu .sub-menu,
  .nav-menu .sub-menu .sub-menu {
    position: static;
    display: none;
    flex: 0 0 100%;
    width: 100%;
    min-width: 0;
    margin: 4px 0 8px;
    padding: 6px;
    background: var(--pale);
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
  }

  .nav-menu .sub-menu::before,
  .nav-menu .sub-menu .sub-menu::before { display: none; }

  .nav-menu li.submenu-open > .sub-menu { display: block; }

  .nav-menu .sub-menu .sub-menu {
    margin: 2px 0 6px 10px;
    width: calc(100% - 10px);
    flex-basis: calc(100% - 10px);
    background: #ffffff;
  }

  .nav-menu .sub-menu li a,
  .nav-menu .sub-menu li.menu-item-has-children > a {
    flex: 1 1 0;
    min-width: 0;
    padding: 11px 12px;
    font-size: 0.95rem;
    font-weight: 500;
    border: none;
    border-radius: 10px;
    background-image: none;
  }

  .nav-menu .sub-menu li.menu-item-has-children > a { font-weight: 600; }

  .nav-menu .sub-menu li a:hover {
    padding-left: 12px;
    background: var(--pale-blue);
  }

  .nav-menu .sub-menu .submenu-toggle {
    flex-basis: 40px;
    width: 40px;
    height: 40px;
  }

  /* --- CTA --- */
  .nav-cta {
    width: 100%;
    margin: 4px 0 0;
    padding-top: 14px;
    border-top: 1px solid var(--line);
  }

  .nav-cta .btn,
  .nav-links .btn {
    width: 100%;
    margin: 0;
    justify-content: center;
    padding: 14px 20px;
    font-size: 1rem;
  }

  /* Lock page scroll while the menu is open */
  body.nav-open { overflow: hidden; }
}

@media (max-width: 420px) {
  .brand-tag { display: none; }
  .brand-name { font-size: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  .nav-links,
  .nav-links.open,
  .submenu-toggle svg { transition: none; }
}