/* ═══════════════════════════════════════════════════════════════════════
   Lyra MENU BLOCKS — frontend styles
   Used by both anchor_nav_menu (data-lyra-bt-menu="anchor") and
   navigation_menu (data-lyra-bt-menu="nav"). Modifier classes branch behavior
   where the two diverge (scrollspy active state, dropdown submenus).
   Per-instance scoped color/spacing rules are emitted inline by
   LYRA_BT_Menu_Blocks::build_style_tag(); the rules below are the defaults +
   structural layout that doesn't depend on the user's per-block settings.
   ═══════════════════════════════════════════════════════════════════════ */

/* ── Container ────────────────────────────────────────────────────────── */
.lyra-bt-menu {
    box-sizing: border-box;
    padding: 0;
    background: transparent;
    z-index: 5;
}
.lyra-bt-menu__inner {
    display: flex;
    align-items: center;
    gap: 14px;
}
.lyra-bt-menu__heading {
    margin: 0 0 8px;
    font-size: 14px;
    font-weight: 600;
    color: inherit;
}

/* ── List ─────────────────────────────────────────────────────────────── */
.lyra-bt-menu__list {
    list-style: none !important;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
}
.lyra-bt-menu--vertical .lyra-bt-menu__inner { display: block; }
.lyra-bt-menu--vertical .lyra-bt-menu__list  {
    flex-direction: column;
    align-items: stretch;
    flex-wrap: nowrap;
}

/* Alignment — only meaningful on horizontal layout. */
.lyra-bt-menu--horizontal.lyra-bt-menu--align-left   .lyra-bt-menu__list { justify-content: flex-start; }
.lyra-bt-menu--horizontal.lyra-bt-menu--align-center .lyra-bt-menu__list { justify-content: center;     }
.lyra-bt-menu--horizontal.lyra-bt-menu--align-right  .lyra-bt-menu__list { justify-content: flex-end;   }

.lyra-bt-menu__item {
    list-style: none !important;
    margin: 0;
    padding: 0;
    position: relative;
}

/* ── Links ────────────────────────────────────────────────────────────── */
.lyra-bt-menu__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    transition: color 0.15s ease, background-color 0.15s ease;
    line-height: 1.2;
    color: inherit;
    cursor: pointer;
    white-space: nowrap;
}
.lyra-bt-menu--vertical .lyra-bt-menu__link {
    width: 100%;
    justify-content: flex-start;
}
.lyra-bt-menu__link:hover,
.lyra-bt-menu__link:focus { text-decoration: none; }
.lyra-bt-menu__link.is-active,
.lyra-bt-menu__item--active > .lyra-bt-menu__link { font-weight: 700; }

/* ── Icon ─────────────────────────────────────────────────────────────── */
.lyra-bt-menu__icon {
    display: inline-flex;
    align-items: center;
    line-height: 1;
}

/* ── Sticky behavior ──────────────────────────────────────────────────── */
.lyra-bt-menu--sticky.is-stuck {
    position: fixed;
    top: var(--lyra-bt-sticky-offset, 0px);
    left: 0;
    right: 0;
    z-index: 99;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
/* Reserve space so content below doesn't jump when the nav goes fixed.
   Implemented as a sibling pseudo-element in the wp:group's parent — for
   the simple case we accept a small layout shift; for production use the
   editor can wrap the block in a Spacer (or place a Container above). */

/* ── Mobile hamburger toggle ──────────────────────────────────────────── */
.lyra-bt-menu__toggle {
    display: none;
    align-items: center;
    gap: 8px;
    border: 1px solid currentColor;
    background: transparent;
    color: inherit;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
}
.lyra-bt-menu__toggle-icon {
    display: inline-flex;
    flex-direction: column;
    gap: 4px;
    width: 18px;
}
.lyra-bt-menu__toggle-icon span {
    display: block;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}
.lyra-bt-menu.is-open .lyra-bt-menu__toggle-icon span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.lyra-bt-menu.is-open .lyra-bt-menu__toggle-icon span:nth-child(2) {
    opacity: 0;
}
.lyra-bt-menu.is-open .lyra-bt-menu__toggle-icon span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Mobile breakpoint — the inline style sets --lyra-bt-mobile-bp on the nav
   element; we use a media query that matches "the user's chosen
   breakpoint", but CSS doesn't allow custom-property values inside
   @media. Workaround: ship a sensible default at 768px and let the
   inline --lyra-bt-mobile-bp variable visually re-orient the layout via
   container queries below where supported. */
@media (max-width: 768px) {
    .lyra-bt-menu[data-mobile="1"] .lyra-bt-menu__toggle { display: inline-flex; }
    .lyra-bt-menu[data-mobile="1"] .lyra-bt-menu__list   {
        display: none;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        flex-basis: 100%;
        margin-top: 8px;
        padding: 8px;
        background: #ffffff;
        border: 1px solid #e2e8f0;
        border-radius: 8px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    }
    .lyra-bt-menu[data-mobile="1"].is-open .lyra-bt-menu__list { display: flex; }
    .lyra-bt-menu[data-mobile="1"] .lyra-bt-menu__item         { width: 100%; }
    .lyra-bt-menu[data-mobile="1"] .lyra-bt-menu__link         { width: 100%; justify-content: flex-start; }
    .lyra-bt-menu[data-mobile="1"] .lyra-bt-menu__inner        { flex-wrap: wrap; }
}

/* ── Submenus (nav menu) ──────────────────────────────────────────────── */
.lyra-bt-menu__submenu {
    list-style: none !important;
    margin: 0;
    padding: 6px 0;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    box-shadow: 0 4px 14px rgba(0,0,0,0.08);
    min-width: 180px;
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 10;
}
.lyra-bt-menu__submenu-item {
    list-style: none !important;
    margin: 0;
    padding: 0;
}
.lyra-bt-menu__submenu-link {
    display: block;
    padding: 8px 14px;
    color: inherit;
    text-decoration: none;
    transition: background-color 0.15s ease, color 0.15s ease;
    white-space: nowrap;
}
.lyra-bt-menu__submenu-link:hover,
.lyra-bt-menu__submenu-link:focus {
    background: #f1f5f9;
    text-decoration: none;
}

/* Hover trigger — pure CSS hover/focus reveal */
.lyra-bt-menu--trigger-hover .lyra-bt-menu__has-submenu:hover > .lyra-bt-menu__submenu,
.lyra-bt-menu--trigger-hover .lyra-bt-menu__has-submenu:focus-within > .lyra-bt-menu__submenu {
    display: block;
}

/* Click trigger — JS adds .is-open */
.lyra-bt-menu--trigger-click .lyra-bt-menu__has-submenu.is-open > .lyra-bt-menu__submenu {
    display: block;
}

/* Vertical layout — submenus inline-stacked rather than absolutely positioned */
.lyra-bt-menu--vertical .lyra-bt-menu__submenu {
    position: static;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 4px 0 4px 18px;
    display: none;
}
.lyra-bt-menu--vertical .lyra-bt-menu--trigger-hover .lyra-bt-menu__has-submenu:hover > .lyra-bt-menu__submenu,
.lyra-bt-menu--vertical .lyra-bt-menu--trigger-hover .lyra-bt-menu__has-submenu:focus-within > .lyra-bt-menu__submenu,
.lyra-bt-menu--vertical .lyra-bt-menu--trigger-click .lyra-bt-menu__has-submenu.is-open > .lyra-bt-menu__submenu {
    display: block;
}

/* Mobile — submenus always inline-stacked when nav is in mobile mode */
@media (max-width: 768px) {
    .lyra-bt-menu[data-mobile="1"] .lyra-bt-menu__submenu {
        position: static;
        box-shadow: none;
        border: none;
        background: transparent;
        padding: 4px 0 4px 18px;
    }
    .lyra-bt-menu[data-mobile="1"] .lyra-bt-menu__has-submenu.is-open > .lyra-bt-menu__submenu {
        display: block;
    }
}

/* ── Screen-reader-only utility ──────────────────────────────────────── */
.lyra-bt-menu .screen-reader-text {
    position: absolute !important;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}