/* ── 1–12. App shell + sidebar (all authenticated modules) ── */
.app-shell {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: 100vh;
    position: relative;
}

.app-shell.is-nav-open .sidebar {
    transform: translateX(0);
}

.app-shell.is-nav-open .sidebar-backdrop {
    opacity: 1;
    pointer-events: auto;
}

.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    z-index: 90;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.sidebar {
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    z-index: 100;
    padding: 0;
    border-right: none;
    background: linear-gradient(180deg, #f8fbff 0%, #eef6ff 44%, #f0fdfa 100%);
    scrollbar-width: thin;
    scrollbar-color: rgba(148, 163, 184, 0.45) transparent;
    box-shadow: 4px 0 28px rgba(15, 23, 42, 0.08);
    border-right: 1px solid #dbeafe;
}

.sidebar-inner {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: var(--space-5) var(--space-4) var(--space-4);
}

.sidebar-nav {
    flex: 1 1 auto;
    min-height: 0;
    overflow-x: hidden;
    overflow-y: auto;
    padding-right: 2px;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.45);
    border-radius: var(--radius-full);
}

.sidebar-lab {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding-bottom: var(--space-5);
    margin-bottom: var(--space-2);
    border-bottom: 1px solid rgba(148, 163, 184, 0.28);
}

.sidebar-lab__logo {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    /* contain + light backing: transparent PNGs stay visible (JPEGs unchanged) */
    object-fit: contain;
    background: #e8eef4;
    border: 2px solid rgba(148, 163, 184, 0.35);
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.08);
}

.sidebar-lab__mark {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: grid;
    place-items: center;
    font-size: var(--text-lg);
    font-weight: 800;
    color: #1e3a8a;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border: 1px solid #93c5fd;
    flex-shrink: 0;
}

.sidebar-lab__text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.sidebar-lab__name {
    font-size: var(--text-base);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: var(--leading-tight);
    color: #0f172a;
    word-break: break-word;
}

.sidebar-lab__tagline {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #64748b;
}

.sidebar-lab__plan {
    display: block;
    font-size: 10px;
    font-weight: 500;
    line-height: 1.3;
    margin-top: 2px;
}

.nav-badge {
    display: inline-block;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 1px 5px;
    border-radius: 4px;
    background: #e0e7ff;
    color: #3730a3;
    vertical-align: middle;
}

.nav-domain {
    margin-bottom: 4px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
}

.nav-domain--active {
    border-color: rgba(148, 163, 184, 0.22);
    background: rgba(248, 250, 252, 0.55);
}

.nav-domain__summary {
    list-style: none;
    cursor: pointer;
    padding: 7px 10px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #334155;
    border-radius: var(--radius-md);
    user-select: none;
}

.nav-domain__summary-row {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.nav-domain__icon {
    flex-shrink: 0;
    display: grid;
    place-items: center;
    width: 1.35rem;
    height: 1.35rem;
    opacity: 0.9;
}

.nav-domain__label {
    min-width: 0;
    line-height: 1.25;
}

.nav-domain__summary::-webkit-details-marker {
    display: none;
}

.nav-domain[open] > .nav-domain__summary {
    color: #0f172a;
}

.nav-domain--active > .nav-domain__summary {
    color: #0f172a;
    background: rgba(219, 234, 254, 0.35);
}

.nav-domain__body {
    padding: 2px 0 4px 4px;
}

.nav-link--domain-dashboard {
    margin: 2px 0 6px;
    font-weight: 600;
}

.nav-group--nested {
    margin-left: 2px;
    margin-top: 2px;
    border-top: none;
    padding-top: 0;
}

.nav-group--nested.nav-group--active > .nav-group__summary {
    color: #334155;
}

.nav-group--nested .nav-group__summary {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 5px 8px;
    color: #64748b;
}

.nav-link--nested {
    padding-left: 28px !important;
    font-size: 13px;
}

.nav-group__online-tag {
    font-size: 0.7rem;
    font-weight: 500;
}

.sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    margin-bottom: 2px;
    border-radius: var(--radius-md);
    color: #334155;
    font-size: var(--text-sm);
    font-weight: 500;
    border: 1px solid transparent;
    text-decoration: none;
    transition:
        background 0.15s ease,
        color 0.15s ease,
        border-color 0.15s ease;
}

.nav-link__icon {
    flex-shrink: 0;
    display: grid;
    place-items: center;
    width: 1.5rem;
    height: 1.5rem;
    opacity: 0.88;
}

.nav-link__icon-svg {
    color: #64748b;
}

.sidebar .nav-link:hover .nav-link__icon-svg,
.sidebar .nav-link.active .nav-link__icon-svg {
    color: #0f172a;
}

.sidebar .nav-link:hover .nav-link__icon-svg--offline-labs,
.sidebar .nav-link.active .nav-link__icon-svg--offline-labs {
    color: #0d9488;
}

.sidebar .nav-link:hover .nav-link__icon-svg--vendor,
.sidebar .nav-link.active .nav-link__icon-svg--vendor {
    color: #b45309;
}

.nav-link__label {
    min-width: 0;
}

.sidebar .nav-link:hover {
    color: #0f172a;
    background: rgba(191, 219, 254, 0.45);
    border-color: rgba(147, 197, 253, 0.55);
}

.sidebar .nav-link.active {
    color: #0f172a;
    background: rgba(186, 230, 253, 0.5);
    border-color: rgba(125, 211, 252, 0.65);
    box-shadow: inset 3px 0 0 #0ea5e9;
}

.nav-link--dashboard {
    font-weight: 600;
    margin-bottom: var(--space-3);
    padding: var(--space-3);
    background: rgba(219, 234, 254, 0.45);
    border: 1px solid rgba(147, 197, 253, 0.55);
}

.nav-link--dashboard:hover {
    background: rgba(191, 219, 254, 0.58);
}

.nav-group {
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid rgba(148, 163, 184, 0.22);
}

.nav-group:first-of-type {
    margin-top: var(--space-3);
    padding-top: var(--space-2);
    border-top: none;
}

.nav-group__summary {
    list-style: none;
    cursor: pointer;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #64748b;
    padding: var(--space-2) var(--space-3) var(--space-2);
    user-select: none;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.nav-group__summary-row {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    min-width: 0;
}

.nav-group__summary-icon {
    flex-shrink: 0;
    display: grid;
    place-items: center;
    opacity: 0.65;
}

.nav-group__icon-svg {
    color: #94a3b8;
}

.nav-group__summary::-webkit-details-marker {
    display: none;
}

/* Collapsed → right (▶); expanded → down (▼) */
.nav-group__summary::after {
    content: "";
    width: 0;
    height: 0;
    margin-left: auto;
    border-style: solid;
    border-width: 5px 0 5px 7px;
    border-color: transparent transparent transparent rgba(100, 116, 139, 0.75);
    flex-shrink: 0;
    transition: border-width 0.15s ease, border-color 0.15s ease;
}

.nav-group[open] > .nav-group__summary::after {
    border-width: 7px 5px 0 5px;
    border-color: rgba(100, 116, 139, 0.75) transparent transparent transparent;
}

.nav-group__body {
    padding: var(--space-1) 0 var(--space-1) var(--space-1);
}

.sidebar-user {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-4);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.62);
    border: 1px solid rgba(148, 163, 184, 0.25);
}

.sidebar-user__avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    display: grid;
    place-items: center;
    font-size: var(--text-sm);
    font-weight: 800;
    color: #0f172a;
    background: linear-gradient(135deg, #5eead4 0%, #2dd4bf 100%);
    border: 2px solid rgba(148, 163, 184, 0.35);
    flex-shrink: 0;
    overflow: hidden;
}

.sidebar-user__initials {
    line-height: 1;
}

.sidebar-user__photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.sidebar-user__meta {
    min-width: 0;
}

.sidebar-user__name {
    font-size: var(--text-sm);
    font-weight: 700;
    color: #0f172a;
    line-height: 1.25;
    word-break: break-word;
}

.sidebar-user__role {
    margin-top: 2px;
    font-size: var(--text-xs);
    font-weight: 500;
    color: #64748b;
    line-height: 1.3;
}

.sidebar-user__login-id {
    margin-top: 6px;
    font-size: 0.75rem;
    font-weight: 800;
    color: #334155;
    line-height: 1.35;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.03em;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

.user-menu {
    position: relative;
}

.user-menu__trigger {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: var(--color-bg-elevated);
    font: inherit;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition:
        background 0.15s ease,
        border-color 0.15s ease,
        box-shadow 0.15s ease;
}

.user-menu__trigger:hover {
    background: var(--color-bg-surface-hover);
    border-color: var(--color-border-strong);
}

.user-menu.is-open .user-menu__trigger {
    border-color: rgba(var(--color-primary-rgb), 0.35);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
}

.user-menu__avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: grid;
    place-items: center;
    font-size: 11px;
    font-weight: 800;
    color: #0f172a;
    background: linear-gradient(135deg, #bae6fd 0%, #38bdf8 100%);
    flex-shrink: 0;
    overflow: hidden;
}

.user-menu__avatar--photo {
    padding: 0;
    background: var(--color-bg-surface);
}

.user-menu__avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.user-menu__name {
    max-width: 10rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-menu__chev {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid var(--color-text-tertiary);
    margin-left: 2px;
    transition: transform 0.2s ease;
}

.user-menu.is-open .user-menu__chev {
    transform: rotate(180deg);
}

.user-menu__panel {
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    min-width: 15rem;
    padding: 0;
    overflow: hidden;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-strong);
    background: var(--color-bg-elevated);
    box-shadow: var(--shadow-lg);
    z-index: 200;
}

.user-menu__banner {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: linear-gradient(
        125deg,
        rgba(var(--color-primary-rgb), 0.92) 0%,
        rgba(20, 93, 160, 0.88) 45%,
        rgba(13, 148, 136, 0.82) 100%
    );
    color: #fff;
}

.user-menu__banner-avatar {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    display: grid;
    place-items: center;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: #0f172a;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.2);
    overflow: hidden;
}

.user-menu__banner-avatar--photo {
    padding: 0;
    background: rgba(255, 255, 255, 0.98);
}

.user-menu__banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.user-menu__banner-username {
    margin-top: 3px;
    font-size: 0.72rem;
    font-weight: 700;
    opacity: 0.9;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
}

.user-menu__banner-text {
    min-width: 0;
}

.user-menu__banner-name {
    font-size: var(--text-sm);
    font-weight: 800;
    line-height: 1.25;
    word-break: break-word;
}

.user-menu__banner-role {
    margin-top: 5px;
    font-size: var(--text-xs);
    font-weight: 600;
    opacity: 0.92;
}

.user-menu__actions {
    padding: var(--space-2);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.user-menu__item {
    display: block;
    width: 100%;
    text-align: left;
    padding: var(--space-3) var(--space-3);
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    font: inherit;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    cursor: pointer;
    transition: background 0.12s ease;
}

.user-menu__item--row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.user-menu__item-icon {
    flex-shrink: 0;
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-sm);
    display: grid;
    place-items: center;
    color: rgba(var(--color-primary-rgb), 0.95);
    background: rgba(var(--color-primary-rgb), 0.1);
}

.user-menu__item--danger .user-menu__item-icon {
    color: var(--color-danger);
    background: rgba(220, 38, 38, 0.1);
}

a.user-menu__item:hover,
.user-menu__item:hover {
    background: var(--color-bg-surface-hover);
}

.user-menu__item--danger {
    color: var(--color-danger);
    font-weight: 600;
}

.user-menu__form {
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--color-border);
    margin-top: var(--space-1);
    padding-top: var(--space-1);
}

.profile-current-photo {
    margin-bottom: var(--space-3);
}

.profile-current-photo__img {
    margin-top: var(--space-2);
    border-radius: var(--radius-md);
    object-fit: cover;
    border: 1px solid var(--color-border);
}

.menu-toggle {
    display: none;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    margin: 0;
    border-radius: var(--radius-md);
    cursor: pointer;
}

.menu-toggle__icon {
    display: block;
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
}

/* Full menu-toggle colors live in 33-mobile-responsive.css (after button styles). */