/* The admin navigation: a rail beside every admin page's content on laptops, a drawer on phones.
   The wrapper becomes a two-column grid only when a rail is rendered inside it. */
.main-content-wrapper:has(> .admin-nav) {
    /* Admin buttons are not visitor-facing calls to action, so inside the admin the CTA tokens alias the primary
       whatever the Brand's CTA choice; the visitor-facing pages keep reading the choice. */
    --brand-cta: var(--md-sys-color-primary);
    --brand-on-cta: var(--md-sys-color-on-primary);
    --brand-cta-rgb: var(--md-sys-color-primary-rgb);
    display: grid;
    grid-template-columns: 264px minmax(0, 1fr);
    grid-template-rows: auto 1fr;
    flex: 1;
}

.main-content-wrapper:has(> .admin-nav) > .admin-nav {
    grid-row: 1 / span 2;
}

.main-content-wrapper:has(> .admin-nav) > :not(.admin-nav, .admin-nav__toggle, .admin-nav__scrim) {
    grid-column: 2;
}

/* Above a rail the header spans the page like the shell beneath it, instead of the visitor pages' centred column:
   the logo sits over the rail, aligned with its link icons, and the menu at the right edge. */
@media (min-width: 1024px) {
    :root:has(.main-content-wrapper > .admin-nav) header.menu-container > .menu-bar {
        grid-column: full-width;
        padding-inline: 26px;
    }
}

.admin-nav {
    background: var(--md-sys-color-surface-container-low, #f6f5fb);
    border-right: 1px solid var(--md-sys-color-outline-variant);
    padding: 20px 12px;
    position: sticky;
    top: 89px;
    align-self: start;
    min-height: calc(100vh - 89px);
    max-height: calc(100vh - 89px);
    overflow-y: auto;
}

.admin-nav__link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 14px;
    border-radius: var(--brand-shape-medium, 8px);
    color: var(--md-sys-color-on-surface);
    text-decoration: none;
    font-size: 0.95rem;
}

.admin-nav__link:hover {
    background: var(--md-sys-color-surface-container-high, #e8e8ee);
}

.admin-nav__link[aria-current="page"] {
    background: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    font-weight: 600;
}

.admin-nav > .admin-nav__link {
    font-weight: 600;
    margin-bottom: 6px;
}

.admin-nav__icon::before {
    display: inline-block;
}

.admin-nav__label {
    flex: 1;
    min-width: 0;
}

.admin-nav__badge {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #d32f2f;
    color: #ffffff;
    border-radius: 999px;
    padding: 1px 7px;
    font-size: 0.75rem;
    font-weight: 600;
    min-width: 20px;
    line-height: 1.4;
}

.admin-nav__link .plan-chip {
    margin-left: auto;
}

.admin-nav__group {
    margin-top: 6px;
}

.admin-nav__group > summary {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 14px;
    cursor: pointer;
    list-style: none;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--md-sys-color-on-surface-variant);
}

.admin-nav__group > summary::-webkit-details-marker {
    display: none;
}

.admin-nav__group > summary::after {
    content: "›";
    margin-left: auto;
    font-size: 1rem;
    transition: transform 0.15s;
}

.admin-nav__group[open] > summary::after {
    transform: rotate(90deg);
}

.admin-nav__links {
    padding-left: 8px;
}

.admin-nav__toggle,
.admin-nav__scrim {
    display: none;
}

/* Laptops: the collapse button shrinks the rail to its icons; labels stay for screen readers. */
.admin-nav__collapse {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    margin: 0 0 6px auto;
    padding: 0;
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: 999px;
    background: var(--md-sys-color-surface, #ffffff);
    color: var(--md-sys-color-on-surface-variant);
    font: inherit;
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
}

.admin-nav__collapse:hover {
    background: var(--md-sys-color-surface-container-high, #e8e8ee);
}

html.admin-nav-collapsed .main-content-wrapper:has(> .admin-nav) {
    grid-template-columns: 76px minmax(0, 1fr);
}

html.admin-nav-collapsed .admin-nav {
    padding-left: 8px;
    padding-right: 8px;
    overflow-x: hidden;
}

html.admin-nav-collapsed .admin-nav__collapse {
    margin-left: auto;
    margin-right: auto;
}

html.admin-nav-collapsed .admin-nav__collapse > span {
    transform: scaleX(-1);
}

html.admin-nav-collapsed .admin-nav__link,
html.admin-nav-collapsed .admin-nav__group > summary {
    justify-content: center;
    padding-left: 0;
    padding-right: 0;
    position: relative;
    /* The rail clips horizontally when collapsed, so the focus ring is drawn inside the item, not outside it. */
    outline-offset: -2px;
}

html.admin-nav-collapsed .admin-nav__label,
html.admin-nav-collapsed .admin-nav__link .plan-chip,
html.admin-nav-collapsed .admin-nav__group > summary::after {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

html.admin-nav-collapsed .admin-nav__links {
    padding-left: 0;
}

html.admin-nav-collapsed .admin-nav__badge {
    position: absolute;
    top: 2px;
    right: 6px;
    margin: 0;
}

/* Phones and small laptops: the rail becomes a drawer behind a Menu button */
@media (max-width: 1023px) {
    .main-content-wrapper:has(> .admin-nav) {
        display: block;
    }

    .admin-nav {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        max-height: none;
        /* Alignment applies to positioned boxes too: the rail's start would shrink the drawer to its links, taller
           than the screen, so nothing scrolls inside it and a swipe scrolls the page behind instead. */
        align-self: stretch;
        overscroll-behavior: contain;
        width: min(300px, 85vw);
        z-index: 1000;
        transform: translateX(-100%);
        transition: transform 0.2s;
        box-shadow: 0 0 24px rgba(0, 0, 0, 0.25);
    }

    body.admin-nav-open .admin-nav {
        transform: none;
    }

    body.admin-nav-open .admin-nav__scrim {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.35);
        z-index: 999;
    }

    .admin-nav__collapse {
        display: none;
    }

    html.admin-nav-collapsed .main-content-wrapper:has(> .admin-nav) {
        display: block;
    }

    html.admin-nav-collapsed .admin-nav__label,
    html.admin-nav-collapsed .admin-nav__link .plan-chip,
    html.admin-nav-collapsed .admin-nav__group > summary::after {
        position: static;
        width: auto;
        height: auto;
        margin: 0;
        overflow: visible;
        clip: auto;
        white-space: normal;
    }

    .admin-nav__toggle {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        margin: 10px 1.25rem 0;
        padding: 8px 14px;
        border: 1px solid var(--md-sys-color-outline-variant);
        border-radius: 999px;
        background: var(--md-sys-color-surface, #ffffff);
        color: var(--md-sys-color-on-surface);
        font: inherit;
        font-size: 0.9rem;
        cursor: pointer;
    }
}