/*
 * B9 Website Core
 *
 * Public Navigation component styles.
 *
 * Source contract:
 * - .b9-navigation
 * - .b9-navigation__list
 * - .b9-navigation__submenu
 * - .b9-navigation__item
 * - .b9-navigation__item--has-children
 * - .b9-navigation__link
 *
 * Responsibilities:
 * - style the current Public Navigation markup;
 * - support nested menu levels;
 * - provide a clean B9Web base presentation;
 * - remain independent from future Theme Editor placement logic.
 *
 * Does NOT:
 * - decide where Navigation is placed;
 * - implement drawer/off-canvas behavior;
 * - implement mega menu behavior;
 * - contain JavaScript interactions;
 * - contain page composition logic.
 */

.b9-navigation {
    width: 100%;
    background: var(--b9-color-background);
    border-bottom: 1px solid var(--b9-color-border);
}

.b9-navigation__list,
.b9-navigation__submenu {
    margin: 0;
    padding: 0;
    list-style: none;
}

.b9-navigation__list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--b9-space-sm);
    width: min(
        calc(100% - (var(--b9-container-gutter) * 2)),
        var(--b9-container-width)
    );
    margin-inline: auto;
}

.b9-navigation__item {
    position: relative;
}

.b9-navigation__link {
    display: inline-flex;
    align-items: center;
    min-height: var(--b9-navigation-main-menu-link-min-height);
    padding: var(--b9-space-sm) var(--b9-space-md);
    color: var(--b9-color-text);
    text-decoration: none;
    border-radius: var(--b9-radius-sm);
}

.b9-navigation__link:hover,
.b9-navigation__link:focus-visible {
    background: var(--b9-color-surface);
}

.b9-navigation__link:focus-visible {
    outline: 2px solid var(--b9-color-primary);
    outline-offset: 2px;
}

.b9-navigation__submenu {
    display: none;
    position: absolute;
    z-index: 20;
    top: 100%;
    left: 0;
    min-width: var(--b9-navigation-main-menu-submenu-min-width);
    padding: var(--b9-space-xs);
    background: var(--b9-color-background);
    border: 1px solid var(--b9-color-border);
    border-radius: var(--b9-radius-md);
}

.b9-navigation__item--has-children:hover > .b9-navigation__submenu,
.b9-navigation__item--has-children:focus-within > .b9-navigation__submenu {
    display: block;
}

.b9-navigation__submenu .b9-navigation__item {
    width: 100%;
}

.b9-navigation__submenu .b9-navigation__link {
    width: 100%;
}

.b9-navigation__submenu .b9-navigation__submenu {
    top: 0;
    left: 100%;
}

@media (max-width: 48rem) {
    .b9-navigation__list {
        align-items: stretch;
        flex-direction: column;
        gap: 0;
    }

    .b9-navigation__link {
        width: 100%;
    }

    .b9-navigation__submenu {
        position: static;
        min-width: 0;
        margin-left: var(--b9-space-md);
        border: 0;
        border-radius: 0;
    }
}