/* Shell del panel admin: topbar + sidebar */
:root {
    --admin-sidebar-w: 260px;
    --admin-ink: #0b1628;
    --admin-ink-2: #132038;
    --admin-muted: #8b9bb4;
    --admin-line: rgba(255, 255, 255, 0.08);
    --admin-accent: #0dce2d;
    --admin-accent-soft: rgba(13, 206, 45, 0.16);
    --admin-surface: #f4f6f9;
}

body.admin-body {
    background: var(--admin-surface);
}

/* Topbar */
.admin-topbar {
    background: linear-gradient(90deg, #0b1628 0%, #12305a 100%) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    min-height: 64px;
    z-index: 1040;
    position: sticky;
    top: 0;
}

.admin-topbar .navbar-brand {
    font-weight: 700;
    letter-spacing: 0.02em;
    gap: 0.5rem;
}

.admin-topbar .navbar-brand img {
    height: 40px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
    background: #fff;
    border-radius: 6px;
    padding: 3px 6px;
}

.admin-topbar .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
}

.admin-sidebar-toggle {
    display: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    align-items: center;
    justify-content: center;
    margin-right: 0.5rem;
}

.admin-sidebar-toggle:hover {
    background: rgba(255, 255, 255, 0.16);
    color: #fff;
}

/* Layout */
.admin-shell {
    display: flex;
    min-height: calc(100vh - 64px);
}

.admin-sidebar {
    width: var(--admin-sidebar-w);
    flex: 0 0 var(--admin-sidebar-w);
    background: linear-gradient(180deg, var(--admin-ink) 0%, #0e1c33 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 64px;
    height: calc(100vh - 64px);
    z-index: 1030;
    border-right: 1px solid var(--admin-line);
}

.admin-sidebar__scroll {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0.85rem 1.25rem;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

.admin-sidebar__head {
    padding: 0.15rem 0.65rem 1rem;
    border-bottom: 1px solid var(--admin-line);
    margin-bottom: 0.85rem;
}

.admin-sidebar__kicker {
    display: block;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--admin-muted);
    margin-bottom: 0.2rem;
}

.admin-sidebar__title {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
}

.admin-nav-group {
    margin-bottom: 1.15rem;
}

.admin-nav-group__label {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0 0.65rem 0.45rem;
    margin: 0;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--admin-muted);
}

.admin-nav-group__label::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--admin-line);
}

.admin-nav {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.admin-nav__link {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.55rem 0.65rem;
    border-radius: 10px;
    color: rgba(255, 255, 255, 0.78);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.admin-nav__icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.85);
    flex-shrink: 0;
    font-size: 0.85rem;
}

.admin-nav__link:hover {
    background: rgba(255, 255, 255, 0.07);
    color: #fff;
}

.admin-nav__link:hover .admin-nav__icon {
    background: rgba(255, 255, 255, 0.12);
}

.admin-nav__link.is-active {
    background: var(--admin-accent-soft);
    color: #fff;
    box-shadow: inset 0 0 0 1px rgba(13, 206, 45, 0.35);
}

.admin-nav__link.is-active .admin-nav__icon {
    background: var(--admin-accent);
    color: #06240c;
}

.admin-sidebar__foot {
    padding: 0.85rem;
    border-top: 1px solid var(--admin-line);
    background: rgba(0, 0, 0, 0.18);
}

.admin-sidebar__foot a {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.55rem 0.7rem;
    border-radius: 10px;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 0.85rem;
    background: rgba(255, 255, 255, 0.05);
}

.admin-sidebar__foot a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.admin-main {
    flex: 1;
    min-width: 0;
    background: var(--admin-surface);
    padding: 1.25rem 1.5rem 2rem;
}

.admin-main .breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 1rem;
}

.admin-backdrop {
    display: none;
}

/* Compat: páginas que aún usan .main-content / .sidebar */
.main-content {
    background: transparent;
    min-height: auto;
}

/* Footer del panel */
.admin-footer {
    margin-top: 0;
    border-top: 1px solid #e5e9f0;
}

@media (max-width: 991.98px) {
    .admin-sidebar-toggle {
        display: inline-flex;
    }

    .admin-shell {
        position: relative;
    }

    .admin-sidebar {
        position: fixed;
        left: 0;
        top: 64px;
        height: calc(100vh - 64px);
        transform: translateX(-105%);
        transition: transform 0.22s ease;
        box-shadow: 8px 0 28px rgba(0, 0, 0, 0.25);
    }

    body.admin-sidebar-open .admin-sidebar {
        transform: translateX(0);
    }

    .admin-backdrop {
        display: block;
        position: fixed;
        inset: 64px 0 0 0;
        background: rgba(8, 14, 28, 0.45);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.2s ease;
        z-index: 1025;
    }

    body.admin-sidebar-open .admin-backdrop {
        opacity: 1;
        pointer-events: auto;
    }

    .admin-main {
        padding: 1rem;
    }
}

@media (min-width: 1400px) {
    :root {
        --admin-sidebar-w: 280px;
    }
}