/* =========================================================================
   Default responsive menu styles for <nav class="menu-root"> produced by
   lib/menus.php (render_menu). Designed to:
     - be horizontal on desktop with hover/focus dropdowns on .has-children
     - collapse to a hamburger on narrow viewports (handled by public/js/menu.js)
     - work without JS as a plain stacked list (graceful fallback)

   Override any of these by scoping tighter rules to your own wrapper
   (e.g. header nav[data-menu] { ... }) or by passing a different class via
   the [menu] shortcode (class="my-site-nav").
   ========================================================================= */

:root {
    --menu-bg:            #ffffff;
    --menu-fg:            #1f2937;
    --menu-fg-hover:      #111827;
    --menu-bg-hover:      #f3f4f6;
    --menu-accent:        #3b82f6;
    --menu-border:        #e5e7eb;
    --menu-submenu-bg:    #ffffff;
    --menu-submenu-shadow:0 8px 20px rgba(0,0,0,0.08);
    --menu-radius:        6px;
    --menu-gap:           4px;
    --menu-bp-mobile:     768px;
}

/* ---------- base container ---------- */
nav[data-menu] {
    position: relative;
    font-family: inherit;
    color: var(--menu-fg);
}

nav[data-menu] ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

nav[data-menu] a {
    color: inherit;
    text-decoration: none;
    display: block;
    padding: 10px 14px;
    border-radius: var(--menu-radius);
    line-height: 1.2;
    transition: background .15s, color .15s;
}

nav[data-menu] a:hover,
nav[data-menu] a:focus {
    background: var(--menu-bg-hover);
    color: var(--menu-fg-hover);
    outline: none;
}

nav[data-menu] li.is-active > a {
    color: var(--menu-accent);
    font-weight: 600;
}

/* ---------- desktop: horizontal top level + dropdown submenus ---------- */
@media (min-width: 768px) {
    nav[data-menu] > ul {
        display: flex;
        gap: var(--menu-gap);
        align-items: center;
        flex-wrap: wrap;
    }

    nav[data-menu] > ul > li {
        position: relative;
    }

    /* Caret on items with submenus */
    nav[data-menu] li.has-children > a::after {
        content: "";
        display: inline-block;
        margin-left: 6px;
        border: 4px solid transparent;
        border-top-color: currentColor;
        vertical-align: 1px;
        transition: transform .15s;
    }

    /* Submenu (dropdown) */
    nav[data-menu] li.has-children > ul {
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 200px;
        background: var(--menu-submenu-bg);
        border: 1px solid var(--menu-border);
        border-radius: var(--menu-radius);
        box-shadow: var(--menu-submenu-shadow);
        padding: 6px;
        display: flex;
        flex-direction: column;
        gap: 2px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(4px);
        transition: opacity .15s, transform .15s, visibility 0s linear .15s;
        z-index: 100;
    }

    /* Show on hover, focus-within, or JS-toggled aria-expanded */
    nav[data-menu] li.has-children:hover > ul,
    nav[data-menu] li.has-children:focus-within > ul,
    nav[data-menu] li.has-children.is-open > ul {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        transition: opacity .15s, transform .15s, visibility 0s;
    }

    /* Flip dropdown direction for deeper levels */
    nav[data-menu] li.has-children li.has-children > ul {
        top: 0;
        left: 100%;
    }

    /* Hide hamburger on desktop */
    nav[data-menu] > .menu-toggle { display: none; }
}

/* ---------- mobile: hamburger + stacked menu ---------- */
@media (max-width: 767.98px) {
    nav[data-menu] {
        background: var(--menu-bg);
    }

    /* Hamburger button — injected by menu.js if missing */
    nav[data-menu] > .menu-toggle {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        appearance: none;
        border: 1px solid var(--menu-border);
        background: var(--menu-bg);
        color: var(--menu-fg);
        padding: 8px 12px;
        border-radius: var(--menu-radius);
        cursor: pointer;
        font: inherit;
    }

    nav[data-menu] > .menu-toggle .menu-toggle-icon {
        position: relative;
        width: 18px;
        height: 2px;
        background: currentColor;
        transition: background .15s;
    }
    nav[data-menu] > .menu-toggle .menu-toggle-icon::before,
    nav[data-menu] > .menu-toggle .menu-toggle-icon::after {
        content: "";
        position: absolute;
        left: 0;
        width: 100%;
        height: 2px;
        background: currentColor;
        transition: transform .2s;
    }
    nav[data-menu] > .menu-toggle .menu-toggle-icon::before { top: -6px; }
    nav[data-menu] > .menu-toggle .menu-toggle-icon::after  { top:  6px; }

    nav[data-menu].is-open > .menu-toggle .menu-toggle-icon         { background: transparent; }
    nav[data-menu].is-open > .menu-toggle .menu-toggle-icon::before { transform: translateY(6px) rotate(45deg); }
    nav[data-menu].is-open > .menu-toggle .menu-toggle-icon::after  { transform: translateY(-6px) rotate(-45deg); }

    /* Top-level list collapses */
    nav[data-menu] > ul {
        display: none;
        flex-direction: column;
        gap: 2px;
        padding: 6px;
        margin-top: 8px;
        border: 1px solid var(--menu-border);
        border-radius: var(--menu-radius);
        background: var(--menu-bg);
    }
    nav[data-menu].is-open > ul { display: flex; }

    /* All submenus hidden until toggled */
    nav[data-menu] li.has-children > ul {
        display: none;
        padding-left: 14px;
        margin-top: 2px;
        border-left: 2px solid var(--menu-border);
    }
    nav[data-menu] li.has-children.is-open > ul { display: block; }

    /* Caret + rotation for submenu items */
    nav[data-menu] li.has-children > a::after {
        content: "";
        float: right;
        margin-top: 8px;
        margin-left: 8px;
        border: 4px solid transparent;
        border-top-color: currentColor;
        transition: transform .2s;
    }
    nav[data-menu] li.has-children.is-open > a::after {
        transform: rotate(-180deg);
    }
}

/* No-JS fallback: reveal menu by default so it's not invisible if JS fails */
nav[data-menu].no-js > ul { display: flex; }

/* =========================================================================
   Breadcrumb (produced by the [breadcrumb] shortcode)
   ========================================================================= */
nav.breadcrumbs ol {
    list-style: none;
    margin: 0;
    padding: 8px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    font-size: 13px;
    color: var(--menu-fg);
}
nav.breadcrumbs li { display: inline-flex; align-items: center; }
nav.breadcrumbs a { color: var(--menu-accent); text-decoration: none; }
nav.breadcrumbs a:hover { text-decoration: underline; }
nav.breadcrumbs li[aria-current="page"] { color: var(--menu-fg); font-weight: 500; }
nav.breadcrumbs .breadcrumb-sep { margin: 0 6px; color: #9ca3af; }