/* ===== Admin Layout ===== */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* ===== Sidebar ===== */
.admin-sidebar {
    width: 240px;
    background: var(--sidebar-bg);
    color: var(--neutral-0);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: var(--z-sidebar);
    transition: transform 0.3s ease;
}

.sidebar-logo {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-logo a {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.sidebar-logo-img {
    height: 26px;
    width: auto;
}

.sidebar-nav {
    flex: 1;
    padding: 8px;
    overflow-y: auto;
    scrollbar-width: none;
}

.sidebar-nav::-webkit-scrollbar {
    display: none;
}

.sidebar-nav .sidebar-menu-group {
    margin-bottom: 2px;
}

.sidebar-nav .sidebar-menu-parent {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: 8px;
    transition: background 0.15s, color 0.15s;
    cursor: pointer;
}

.sidebar-nav .sidebar-menu-parent:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--neutral-0);
}

.sidebar-menu-group.open > .sidebar-menu-parent {
    background: var(--primary);
    color: var(--neutral-0);
    font-weight: 600;
}

.sidebar-nav .nav-icon {
    width: 20px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sidebar-nav .nav-icon svg {
    display: block;
}

.nav-icon-img {
    width: 20px;
    height: 20px;
    object-fit: contain;
    flex-shrink: 0;
    opacity: 0.75;
}

.sidebar-nav-link.active .nav-icon-img,
.sidebar-nav-link:hover .nav-icon-img {
    opacity: 1;
}

.sidebar-nav-item {
    margin-bottom: 2px;
}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: 8px;
    transition: background 0.15s, color 0.15s;
}

.sidebar-nav-link:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--neutral-0);
}

.sidebar-nav-link.active {
    background: var(--primary);
    color: var(--neutral-0);
    font-weight: 600;
}

/* SVG chevron — rotates when menu is open */
.sidebar-chevron {
    margin-left: auto;
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    color: rgba(255, 255, 255, 0.35);
    transition: transform 0.2s ease, color 0.15s;
}

.sidebar-nav-link:hover .sidebar-chevron,
.sidebar-nav-link.active .sidebar-chevron {
    color: rgba(255, 255, 255, 0.7);
}

.sidebar-menu-group.open .sidebar-chevron {
    transform: rotate(90deg);
    color: rgba(255, 255, 255, 0.8);
}

.sidebar-children {
    margin-left: 32px;
    padding-left: 12px;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
}

.sidebar-menu-group.open .sidebar-children {
    max-height: 500px;
}

.sidebar-children a {
    display: block;
    font-size: 13px;
    padding: 7px 12px;
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    border-radius: 6px;
    transition: background 0.15s, color 0.15s;
}

.sidebar-children a:hover {
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.85);
}

.sidebar-children a.active {
    color: var(--primary);
    font-weight: 600;
}

/* ===== Sidebar User Section ===== */
.sidebar-user {
    padding: 12px 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
    object-fit: cover;
    opacity: 0.9;
}

.sidebar-user-link {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex: 1;
    min-width: 0;
    cursor: pointer;
    border-radius: 8px;
    padding: 4px;
    transition: background 0.15s;
}

.sidebar-user-link:hover {
    background: rgba(255, 255, 255, 0.06);
}

.sidebar-user-link:hover .sidebar-user-name {
    color: var(--neutral-0);
}

.sidebar-user-name {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-user form {
    margin: 0;
}

.sidebar-user .btn-logout {
    font-size: 11px;
    padding: 4px 10px;
    border: none;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
    flex-shrink: 0;
}

.sidebar-user .btn-logout:hover {
    background: rgba(255, 255, 255, 0.18);
    color: var(--neutral-0);
}

/* ===== Main Content ===== */
.admin-main {
    flex: 1;
    min-width: 0;
    margin-left: 240px;
}

.page-content {
    padding: 24px 32px;
}

/* ===== Topbar ===== */
.admin-topbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--neutral-10);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
    padding: 14px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: var(--z-topbar);
}

.admin-topbar-title {
    font-size: 17px;
    font-weight: 700;
    margin: 0;
    line-height: 1.3;
}

.admin-breadcrumb {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 3px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.admin-breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.15s;
}

.admin-breadcrumb a:hover {
    color: var(--primary);
}

.admin-breadcrumb .separator {
    color: var(--neutral-20);
    font-size: 11px;
    line-height: 1;
    user-select: none;
}

.admin-breadcrumb .breadcrumb-current {
    color: var(--text-primary);
    font-weight: 600;
}

/* ===== Sidebar Toggle (desktop fallback) ===== */
.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--text-primary);
    padding: 4px;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: var(--z-sidebar-overlay);
}

/* ===== Mobile Nav ===== */
.mobile-nav {
    display: none;
}

/* ===== Responsive: Tablet (off-canvas sidebar) ===== */
@media (min-width: 769px) and (max-width: 1024px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }

    .admin-sidebar.open {
        transform: translateX(0);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.2);
    }

    .sidebar-overlay {
        display: none;
    }

    .sidebar-overlay.open {
        display: block;
    }

    .admin-main {
        margin-left: 0;
    }

    .admin-topbar {
        padding: 12px 20px;
    }

    .page-content {
        padding: 20px 24px;
    }

    /* Topbar: grid layout so toggle sits left of title+breadcrumb */
    .sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        flex-shrink: 0;
    }

    .admin-topbar > div {
        display: grid;
        grid-template-columns: 44px 1fr;
        grid-template-rows: auto auto;
        column-gap: 4px;
        align-items: center;
    }

    .admin-topbar > div .sidebar-toggle {
        grid-column: 1;
        grid-row: 1 / 3;
    }

    .admin-topbar-title {
        grid-column: 2;
        grid-row: 1;
    }

    .admin-breadcrumb {
        grid-column: 2;
        grid-row: 2;
    }
}

/* ===== Responsive: Mobile ===== */
@media (max-width: 768px) {
    .admin-sidebar {
        display: none;
    }

    .sidebar-overlay {
        display: none !important;
    }

    .admin-main {
        margin-left: 0;
        padding-top: 48px;
    }

    .sidebar-toggle {
        display: none;
    }

    .mobile-nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 48px;
        background: var(--sidebar-bg);
        padding: 0 14px;
        z-index: var(--z-mobile-nav);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .mobile-nav-left {
        display: flex;
        align-items: center;
        gap: 16px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .mobile-nav-left::-webkit-scrollbar {
        display: none;
    }

    .mobile-nav-logo {
        text-decoration: none;
        margin-right: 4px;
        flex-shrink: 0;
        display: flex;
        align-items: center;
    }

    .mobile-nav-logo-img {
        height: 20px;
        width: auto;
    }

    .mobile-nav-link {
        color: rgba(255, 255, 255, 0.55);
        text-decoration: none;
        font-size: 13px;
        font-weight: 500;
        white-space: nowrap;
        flex-shrink: 0;
        padding: 4px 0;
        transition: color 0.15s;
    }

    .mobile-nav-link.active {
        color: var(--neutral-0);
        font-weight: 700;
    }

    .mobile-nav-right {
        flex-shrink: 0;
        position: relative;
    }

    .mobile-nav-profile {
        background: none;
        border: none;
        border-radius: 50%;
        width: 32px;
        height: 32px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0;
    }

    .mobile-nav-profile-img {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        opacity: 0.85;
    }

    .mobile-nav-dropdown {
        display: none;
        position: absolute;
        top: 42px;
        right: 0;
        background: var(--bg-card);
        border-radius: 10px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.14);
        padding: 14px 16px;
        min-width: 170px;
        z-index: var(--z-mobile-dropdown);
    }

    .mobile-nav-dropdown.open {
        display: block;
    }

    .mobile-nav-user {
        font-size: 14px;
        font-weight: 600;
        padding-bottom: 10px;
        border-bottom: 1px solid var(--neutral-10);
        margin-bottom: 10px;
        text-decoration: none;
        color: inherit;
        display: block;
    }

    .mobile-nav-dropdown form {
        margin: 0;
    }

    .sidebar-user-roles {
        display: flex;
        flex-wrap: wrap;
        gap: 4px;
        margin-top: 6px;
    }

    .sidebar-role-badge {
        display: inline-block;
        padding: 2px 7px;
        font-size: 11px;
        font-weight: 500;
        background: var(--neutral-10);
        color: var(--neutral-60);
        border-radius: 4px;
    }

    .mobile-nav-logout {
        background: none;
        border: none;
        color: var(--neutral-60);
        font-size: 13px;
        cursor: pointer;
        padding: 4px 0;
        width: 100%;
        text-align: left;
        transition: color 0.15s;
    }

    .mobile-nav-logout:hover {
        color: var(--neutral-90);
    }

    .admin-topbar {
        top: 48px;
        padding: 10px 16px;
    }

    .admin-topbar-title {
        font-size: 15px;
    }

    .admin-breadcrumb {
        font-size: 11px;
        flex-wrap: nowrap;
        min-width: 0;
    }

    .admin-breadcrumb a {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        min-width: 0;
    }

    .page-content {
        padding: 16px;
    }
}