/* =========================================================
   MAIN NAVIGATION
   Desktop: horizontal top-level menu with nested dropdowns.
   Mobile: hamburger button opens a stacked menu.
   ========================================================= */

.nav-toggle {
    display: none;
    align-items: center;
    gap: 7px;
    flex: 0 0 auto;
    min-height: 34px;
    padding: 5px 8px;
    font-family: Arial, sans-serif;
    font-size: 14px;
    font-weight: bold;
    background: transparent;
    color: var(--wwd-colour-white);
    border: none;
    cursor: pointer;
}

.nav-toggle-icon {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 24px;
    height: 24px;
}

.nav-toggle-icon span {
    display: block;
    height: 3px;
    border-radius: 999px;
    background: var(--wwd-colour-white);
}

.main-navigation {
    width: 100%;
    background: var(--wwd-colour-dark-blue);
    font-family: Arial, sans-serif;
    position: relative;
    z-index: 3100;
}

.nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-categories {
    display: flex;
    flex-wrap: wrap;
}

.nav-item {
    position: relative;
}

.nav-item > .nav-link {
    display: block;
    padding: 10px 14px;
    color: var(--wwd-colour-white);
    text-decoration: none;
    font-weight: bold;
    white-space: nowrap;
}

/*
   Menu-heading nodes are usually non-link navigation labels. When Admin sets
   a heading to open the first visible child, the same class can appear on an
   anchor so it still inherits navigation styling instead of global button
   styling.
*/
.nav-item > .nav-heading-label {
    cursor: default;
}

.nav-item > .nav-heading-label--has-children {
    cursor: pointer;
}

.nav-item > .nav-link:hover,
.nav-item > .nav-link:focus {
    background: var(--wwd-colour-light-blue);
}

.nav-node-children {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 3200;
    min-width: 220px;
    background: #ffffff;
    border: 1px solid #c0c0c0;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.12);
}

.nav-node-children .nav-node-children {
    top: 0;
    left: 100%;
}

.nav-item:hover > .nav-node-children,
.nav-item:focus-within > .nav-node-children {
    display: block;
}

.nav-node-children .nav-item > .nav-link {
    color: #222222;
    background: #ffffff;
    padding: 9px 12px;
}

.nav-node-children .nav-item > .nav-link:hover,
.nav-node-children .nav-item > .nav-link:focus {
    background: #eeeeee;
}

.nav-item.has-children > .nav-link::after {
    content: " ▸";
    font-size: 0.85em;
}

.main-categories > .nav-item.has-children > .nav-link::after {
    content: " ▾";
}

/* Backwards-compatible aliases for older markup/classes. */
.subcategory-list {
    display: none;
}

/* =========================================================
   MOBILE NAVIGATION
   ========================================================= */

@media (max-width: 768px) {

    .nav-toggle {
        display: inline-flex;
    }

    .main-navigation {
        display: none;
        border-top: 1px solid rgba(255, 255, 255, 0.25);
    }

    .main-navigation.open {
        display: block;
    }

    .main-categories {
        display: block;
    }

    .nav-item {
        border-bottom: 1px solid rgba(var(--wwd-colour-light-blue-rgb), 0.75);
    }

    .nav-item > .nav-link {
        padding: 12px;
        white-space: normal;
    }

    .nav-node-children,
    .nav-node-children .nav-node-children {
        display: none;
        position: static;
        min-width: 0;
        border: none;
        box-shadow: none;
        background: #f7f7f7;
    }

    /*
       On touch-width screens, submenu visibility must be controlled only by
       the JavaScript-managed `.open` class. The desktop hover/focus-within
       rule above is intentionally neutralized here because a tap can leave
       focus on the parent link; without this override, the submenu appears to
       stay open even after the click handler removes `.open`.

       Activity-log note:
       This is a browser-only navigation interaction. Do not activity-log menu
       open/close actions; durable navigation edits are logged from Catalogue
       Navigation Admin when the menu tree is saved.
    */
    .nav-item:hover > .nav-node-children,
    .nav-item:focus-within > .nav-node-children {
        display: none;
    }

    .nav-item.open > .nav-node-children {
        display: block;
    }

    .nav-node-children .nav-item > .nav-link {
        padding-left: 28px;
        white-space: normal;
    }

    .nav-node-children .nav-node-children .nav-item > .nav-link {
        padding-left: 44px;
    }

    .nav-node-children .nav-node-children .nav-node-children .nav-item > .nav-link {
        padding-left: 60px;
    }
}

/* =========================================================
   MOBILE MENU BUTTON RESET
   =========================================================

   The global phone button rule makes normal form/action buttons full width.
   The hamburger menu is a header control, not an order button, so it must stay
   compact and flush with the left side of the mobile top bar.

   Activity-log note:
   This is a client-side menu toggle only. Do not activity-log menu opens.
   ========================================================= */

button.nav-toggle {
    width: auto;
    max-width: none;
    min-width: 0;
    margin: 0;
    padding: 5px 8px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    border: none;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    color: var(--wwd-colour-white);
    font: normal 700 14px/1 Arial, sans-serif;
    text-shadow: none;
}

button.nav-toggle:hover,
button.nav-toggle:focus,
button.nav-toggle:active {
    width: auto;
    background: rgba(255, 255, 255, 0.12);
    box-shadow: none;
    color: var(--wwd-colour-white);
    text-shadow: none;
    transform: none;
}