.admin-nav {
    position: sticky;
    top: 0;
    display: grid;
    align-content: start;
    grid-auto-rows: max-content;
    gap: 0.85rem;
    height: 100dvh;
    padding: 1.1rem 0.9rem calc(0.9rem + env(safe-area-inset-bottom, 0px));
    overflow-y: auto;
}

.admin-nav__hero {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.8rem;
    padding: 0.95rem;
    border-radius: 22px;
    border: 1px solid color-mix(in srgb, var(--ha-accent) 18%, transparent);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, color-mix(in srgb, var(--ha-accent-soft) 62%, white) 100%);
    box-shadow: var(--ha-shadow);
    transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.admin-nav__hero:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 42px rgba(21, 64, 46, 0.12);
}

.admin-nav__hero-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.8rem;
    height: 2.8rem;
    border-radius: 16px;
    color: var(--ha-accent);
    background: rgba(255, 255, 255, 0.86);
}

.admin-nav__hero-copy {
    display: grid;
    gap: 0.2rem;
}

.admin-nav__hero-kicker,
.admin-nav__header-label {
    margin: 0;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ha-text-muted, #656d76);
}

.nav-shell__header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 1rem;
}

.nav-shell__title,
.admin-nav__header-title {
    margin: 0;
    color: var(--ha-text, #24292f);
}

.nav-shell__title {
    font-size: 1.25rem;
    font-weight: 700;
}

.admin-nav__header-title {
    font-size: 0.96rem;
    font-weight: 700;
}

.admin-nav__hero-text {
    margin: 0;
    color: var(--ha-text-muted, #656d76);
    font-size: 0.83rem;
    line-height: 1.45;
}

.nav-shell__toggle {
    display: none;
}

.nav-shell__toggle::part(control) {
    border-radius: 999px;
    border: 1px solid color-mix(in srgb, var(--ha-accent) 18%, var(--ha-border));
    background: rgba(255, 255, 255, 0.86);
    color: var(--ha-text, #24292f);
}

.admin-nav__links {
    display: grid;
    gap: 0.75rem;
}

.admin-nav__section-card {
    display: grid;
    gap: 0.2rem;
    padding: 0.45rem;
    border-radius: 20px;
    border: 1px solid color-mix(in srgb, var(--ha-accent) 12%, transparent);
    background: rgba(255, 255, 255, 0.78);
    box-shadow: var(--ha-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.admin-nav__section-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 42px rgba(21, 64, 46, 0.1);
}

.admin-nav__section-card--split {
    gap: 0.55rem;
}

.nav-section-label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ha-text-muted, #656d76);
    padding: 0.5rem 0.6rem 0.15rem;
    margin: 0;
}

.nav-shell__link {
    display: block;
    padding: 0.72rem 0.82rem;
    border-radius: 14px;
    color: var(--ha-text, #24292f);
    font-weight: 600;
    text-decoration: none;
    font-size: 0.88rem;
    transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.nav-shell__link:hover {
    background: var(--ha-panel-alt, #edf5ff);
    transform: translateX(2px);
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--ha-accent) 8%, transparent);
}

.nav-shell__link.active {
    background: var(--ha-accent-soft);
    color: var(--ha-accent);
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--ha-accent) 14%, transparent);
}

.nav-shell__link-content {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

@media (max-width: 960px) {
    .admin-nav {
        height: auto;
        overflow: visible;
        padding-top: 0.75rem;
    }

    .admin-nav--open {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: min(23rem, 92vw);
        z-index: 100;
        padding: 0.95rem 0.95rem calc(0.95rem + env(safe-area-inset-bottom, 0px));
        overflow-y: auto;
        background: rgb(248, 252, 249);
        border-right: 1px solid color-mix(in srgb, var(--ha-accent) 16%, var(--ha-border));
        box-shadow: 0 24px 64px rgba(19, 48, 34, 0.22);
        animation: admin-nav-drawer-in 0.26s cubic-bezier(0.22, 1, 0.36, 1);
    }

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

    .admin-nav__links:not(.nav-shell__links--collapsed) {
        display: grid;
    }
}

@media (max-width: 640px) {
    .admin-nav__hero {
        grid-template-columns: 1fr;
    }

    .admin-nav--open {
        width: min(23rem, 100vw);
    }
}

@keyframes admin-nav-drawer-in {
    from {
        opacity: 0;
        transform: translateX(-12px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .admin-nav__hero,
    .admin-nav__section-card,
    .nav-shell__link,
    .admin-nav__links:not(.nav-shell__links--collapsed) {
        transition: none;
        animation: none;
    }
}