/**
 * Navigation extras: mega menus, menu icons and badges, the top bar, the
 * "More" overflow menu, the article section nav and the mobile breadcrumb.
 *
 * All of it uses css/core/tokens.css, so a child theme restyles it by redefining
 * variables.
 */

/* Icons and badges in menu items ---------------------------------------- */
.menu-item__icon {
    vertical-align: -3px;
    margin-inline-end: 6px;
    color: inherit;
}

.menu-item__badge {
    display: inline-block;
    margin-inline-start: 6px;
    padding: 0 6px;
    border-radius: 999px;
    /* --focus-color only guarantees 3:1; badge text needs 4.5:1, and the
       gradient/on-primary pair is computed together. */
    background: var(--bg-gradient-start);
    color: var(--on-primary, var(--text-color-light));
    font-size: 11px;
    line-height: 18px;
    vertical-align: 2px;
}

/* Mega menu -------------------------------------------------------------- */
@media (min-width: 1025px) {
    .nav-menu .menu-item--mega {
        position: static; /* the panel spans the header, not the item */
    }

    .nav-menu .menu-item--mega > .sub-menu {
        display: grid;
        grid-template-columns: repeat(var(--mega-columns, 3), minmax(0, 1fr));
        gap: var(--spacing-md) var(--spacing-xl);
        inset-inline: 0;
        width: min(100%, var(--container-max-width));
        margin-inline: auto;
        padding: var(--spacing-lg);
        border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
    }

    .nav-menu .menu-item--mega > .sub-menu .sub-menu {
        position: static;
        display: block;
        box-shadow: none;
        padding: 0;
        margin-top: 6px;
        background: transparent;
        min-width: 0;
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .nav-menu .menu-item--mega > .sub-menu > .menu-item > a {
        font-weight: 600;
    }

    .nav-menu .menu-item--mega > .sub-menu > .mega-menu__extra {
        grid-column: 1 / -1;
        padding-top: var(--spacing-md);
        margin-top: var(--spacing-sm);
        border-top: 1px solid var(--border-color);
        list-style: none;
    }

    .mega-menu__columns {
        display: none;
    }

    .mega-menu__extra .content-section {
        margin: 0;
    }
}

/* "More" overflow menu --------------------------------------------------- */
.menu-item--more__toggle {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 0;
    background: transparent;
    color: inherit;
    font: inherit;
    cursor: pointer;
    box-shadow: none;
}

.menu-item--more__toggle:hover,
.menu-item--more__toggle:focus-visible {
    color: var(--link-hover-color, var(--link-color));
    transform: none;
}

.menu-item--more.is-open > .menu-item--more__list {
    opacity: 1;
    visibility: visible;
    transform: none;
}

/* Top bar ---------------------------------------------------------------- */
.top-bar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-size-small);
}

.top-bar__inner {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-md);
    min-height: 36px;
}

.top-bar__menu {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    list-style: none;
    margin: 0;
    padding: 0;
}

.top-bar__menu a {
    color: var(--text-muted, var(--text-color));
    text-decoration: none;
}

.top-bar__menu a:hover,
.top-bar__menu a:focus-visible {
    color: var(--link-hover-color, var(--link-color));
}

/* Section nav beside long articles --------------------------------------- */
.section-nav {
    margin: 0 20px var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
}

.section-nav__title {
    margin: 0 0 var(--spacing-xs);
    font-size: var(--font-size-small);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted, var(--text-color));
}

.section-nav__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 4px;
}

.section-nav__list a {
    text-decoration: none;
    color: var(--text-color);
    border-inline-start: 3px solid transparent;
    padding-inline-start: var(--spacing-sm);
    display: block;
}

.section-nav__list a:hover,
.section-nav__list a:focus-visible,
.section-nav__list a.is-current {
    color: var(--link-hover-color, var(--link-color));
    border-inline-start-color: var(--focus-color);
}

/* Only one list of headings on screen: the sticky section nav on wide screens,
   the theme's in-article table of contents everywhere else. */
@media (max-width: 1199px) {
    .section-nav {
        display: none;
    }
}

@media (min-width: 1200px) {
    .single-article:has(.section-nav:not([hidden])) .toc,
    .single-main__content-column:has(.section-nav:not([hidden])) .toc {
        display: none;
    }

    .section-nav {
        position: sticky;
        top: calc(var(--header-height, 80px) + var(--store-notice-height, 0px) + var(--spacing-md));
        float: inline-end;
        width: 220px;
        margin-inline-start: var(--spacing-lg);
    }
}

/* Breadcrumbs: "back" on phones ------------------------------------------ */
.breadcrumbs__back {
    vertical-align: -3px;
    margin-inline-end: 2px;
}

@media (min-width: 601px) {
    .breadcrumbs__back {
        display: none;
    }
}

@media (max-width: 600px) {
    .breadcrumbs__list--collapsible > .breadcrumbs__item {
        display: none;
    }

    .breadcrumbs__list--collapsible > .breadcrumbs__item--parent {
        display: inline-flex;
        align-items: center;
    }

    .breadcrumbs__list--collapsible > .breadcrumbs__item--parent::after {
        content: none;
    }
}