/* Parent Dashboard UI refinement — Step 3 shared shell. */
html:has(.math-parent-dashboard-shell),
body:has(.math-parent-dashboard-shell) {
    width: 100%;
    min-height: 100%;
    margin: 0 !important;
    overflow: hidden;
    background: var(--parent-color-navy-950, #040638) !important;
}

.math-parent-visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.math-parent-dashboard-shell {
    display: block;
    overflow: hidden;
}

.math-parent-dashboard-shell .math-parent-layout {
    display: grid;
    width: 100%;
    height: 100svh;
    min-height: 0;
    grid-template-columns: var(--parent-sidebar-wide) minmax(0, 1fr);
    overflow: hidden;
}

.math-parent-dashboard-shell .math-parent-sidebar {
    position: relative;
    z-index: 2;
    display: flex;
    width: auto;
    min-width: 0;
    min-height: 0;
    padding: clamp(1.75rem, 4.5vh, 3.75rem) clamp(1.25rem, 3.35vw, 4rem);
    flex-direction: column;
    border: 0;
    border-right: 1px solid var(--parent-divider);
    background: linear-gradient(90deg, rgba(15, 20, 82, 0.36), rgba(4, 6, 56, 0.08));
}

.math-parent-dashboard-shell .math-parent-brand {
    display: inline-flex;
    width: max-content;
    min-height: var(--parent-touch-target);
    align-items: center;
    color: var(--parent-color-text) !important;
}

.math-parent-dashboard-shell .math-parent-brand-logo {
    display: block;
    width: clamp(10.5rem, 14vw, 14rem);
    height: auto;
    filter: drop-shadow(0 0.35rem 0.75rem rgba(0, 0, 0, 0.22));
}

.math-parent-dashboard-shell .math-parent-brand-mark {
    width: 3rem;
    height: 3rem;
    flex: 0 0 auto;
    border-radius: var(--parent-radius-lg);
}

.math-parent-dashboard-shell .math-parent-brand > span:last-child {
    display: flex;
}

.math-parent-dashboard-shell .math-parent-brand strong {
    font-size: var(--parent-font-size-card-title);
    font-weight: 850;
    line-height: var(--parent-line-height-tight);
}

.math-parent-dashboard-shell .math-parent-brand small {
    margin-top: var(--parent-space-1);
    color: var(--parent-color-text-subtle);
    font-size: var(--parent-font-size-xs);
    font-weight: 650;
    letter-spacing: 0;
}

.math-parent-dashboard-shell .math-parent-child-menu {
    position: relative;
    width: 100%;
    max-width: 20rem;
    min-width: 0;
    margin-top: clamp(2rem, 6vh, 4.5rem);
    border: 1px solid var(--parent-border-default);
    border-radius: var(--parent-radius-md);
    background: var(--parent-surface-raised);
    box-shadow: var(--parent-shadow-control);
    backdrop-filter: blur(var(--parent-glass-blur));
    -webkit-backdrop-filter: blur(var(--parent-glass-blur));
}

.math-parent-dashboard-shell .math-parent-avatar {
    width: 3.75rem;
    height: 3.75rem;
    border-color: var(--parent-color-success);
    border-radius: 50%;
}

.math-parent-dashboard-shell .math-parent-child-menu > summary {
    display: grid;
    min-width: 0;
    min-height: 5.75rem;
    padding: var(--parent-space-3);
    grid-template-columns: 3.75rem minmax(0, 1fr) var(--parent-touch-target);
    align-items: center;
    gap: var(--parent-space-3);
    cursor: pointer;
    list-style: none;
}

.math-parent-dashboard-shell .math-parent-child-menu > summary::-webkit-details-marker {
    display: none;
}

.math-parent-dashboard-shell .math-parent-child-menu > summary strong {
    overflow: hidden;
    color: var(--parent-color-text);
    font-size: var(--parent-font-size-body);
    font-weight: 800;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.math-parent-dashboard-shell .math-parent-child-menu-chevron {
    display: grid;
    width: var(--parent-touch-target);
    height: var(--parent-touch-target);
    place-items: center;
    border-left: 1px solid var(--parent-border-soft);
    color: var(--parent-color-text);
    font-size: 1.35rem;
    transition: transform var(--parent-duration-normal) var(--parent-ease-standard);
}

.math-parent-dashboard-shell .math-parent-child-menu[open] .math-parent-child-menu-chevron {
    transform: rotate(180deg);
}

.math-parent-dashboard-shell .math-parent-child-menu-list {
    position: absolute;
    z-index: 5;
    top: calc(100% + var(--parent-space-2));
    right: 0;
    left: 0;
    display: grid;
    padding: var(--parent-space-2);
    gap: var(--parent-space-1);
    border: 1px solid var(--parent-border-strong);
    border-radius: var(--parent-radius-md);
    background: rgba(18, 22, 82, 0.96);
    box-shadow: var(--parent-shadow-card);
    backdrop-filter: blur(var(--parent-glass-blur));
    -webkit-backdrop-filter: blur(var(--parent-glass-blur));
}

.math-parent-dashboard-shell .math-parent-child-menu-option,
.math-parent-dashboard-shell .math-parent-child-menu-add {
    display: flex;
    min-height: 3rem;
    padding: 0 var(--parent-space-2);
    align-items: center;
    gap: var(--parent-space-2);
    border-radius: var(--parent-radius-sm);
    color: var(--parent-color-text) !important;
    font-size: var(--parent-font-size-sm);
    font-weight: 750;
    text-decoration: none !important;
}

.math-parent-dashboard-shell .math-parent-child-menu-option:hover,
.math-parent-dashboard-shell .math-parent-child-menu-option:focus-visible,
.math-parent-dashboard-shell .math-parent-child-menu-option.is-current {
    background: var(--parent-surface-soft);
}

.math-parent-dashboard-shell .math-parent-child-menu-option .math-parent-avatar {
    width: 2rem;
    height: 2rem;
}

.math-parent-dashboard-shell .math-parent-child-menu-add {
    margin-top: var(--parent-space-1);
    border-top: 1px solid var(--parent-border-soft);
    color: var(--parent-color-success) !important;
}

.math-parent-dashboard-shell .math-parent-child-menu-add > span {
    display: grid;
    width: 1.5rem;
    height: 1.5rem;
    place-items: center;
    border: 1px solid currentColor;
    border-radius: 50%;
    font-size: 1.15rem;
    line-height: 1;
}

.math-parent-dashboard-shell .math-parent-navigation {
    display: grid;
    width: 100%;
    max-width: 26.75rem;
    margin-top: clamp(2rem, 5vh, 3rem);
    gap: var(--parent-space-1);
}

.math-parent-dashboard-shell .math-parent-nav-link {
    min-height: 3.5rem;
    padding: 0 var(--parent-space-6);
    gap: var(--parent-space-3);
    border: 0;
    border-radius: var(--parent-radius-sm);
    color: var(--parent-color-text-muted) !important;
    font-size: clamp(1rem, 0.84rem + 0.42vw, 1.35rem);
    font-weight: 780;
    transition: color var(--parent-duration-normal) var(--parent-ease-standard),
        background var(--parent-duration-normal) var(--parent-ease-standard),
        transform var(--parent-duration-normal) var(--parent-ease-standard);
}

.math-parent-dashboard-shell .math-parent-nav-link > span {
    width: 1.75rem;
    height: 1.75rem;
    color: currentColor;
    font-size: 1.2em;
}

.math-parent-dashboard-shell .math-parent-nav-link:hover,
.math-parent-dashboard-shell .math-parent-nav-link:focus-visible {
    color: var(--parent-color-text) !important;
    background: var(--parent-surface-soft);
    transform: none;
}

.math-parent-dashboard-shell .math-parent-nav-link.is-current {
    border: 0;
    background: var(--parent-gradient-active);
    color: var(--parent-color-text) !important;
}

.math-parent-dashboard-shell .math-parent-nav-link.is-current > span {
    color: var(--parent-color-text);
}

.math-parent-dashboard-shell .math-parent-signout {
    display: inline-flex;
    width: max-content;
    min-height: var(--parent-touch-target);
    margin-top: auto;
    padding: 0 var(--parent-space-3);
    align-items: center;
    gap: var(--parent-space-2);
    border: 0;
    border-radius: var(--parent-radius-md);
    background: transparent;
    color: var(--parent-color-text-subtle) !important;
    font-size: var(--parent-font-size-sm);
    font-weight: 750;
}

.math-parent-dashboard-shell .math-parent-signout:hover,
.math-parent-dashboard-shell .math-parent-signout:focus-visible {
    color: var(--parent-color-text) !important;
    background: var(--parent-surface-soft);
    transform: none;
}

.math-parent-workspace {
    display: flex;
    min-width: 0;
    min-height: 0;
    flex-direction: column;
    overflow: hidden;
}

.math-parent-dashboard-shell .math-parent-header {
    display: flex;
    min-height: 7rem;
    padding: clamp(1.25rem, 3vw, 3.5rem) var(--parent-page-gutter) var(--parent-space-3);
    align-items: flex-start;
    justify-content: flex-end;
    border: 0;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.math-parent-mobile-identity {
    display: none;
}

.math-parent-dashboard-shell .math-parent-header-actions {
    display: flex;
    justify-self: auto;
    align-items: center;
    gap: var(--parent-space-3);
}

.math-parent-dashboard-shell .math-parent-learning-link {
    min-height: 3rem;
    border: 1px solid var(--parent-border-default);
    border-radius: var(--parent-radius-sm);
    background: var(--parent-surface-raised);
    box-shadow: var(--parent-shadow-control);
    color: var(--parent-color-text) !important;
    transition: border-color var(--parent-duration-normal) var(--parent-ease-standard),
        background var(--parent-duration-normal) var(--parent-ease-standard),
        transform var(--parent-duration-normal) var(--parent-ease-standard);
}

.math-parent-dashboard-shell .math-parent-learning-link {
    display: inline-flex;
    margin: 0;
    padding: 0 var(--parent-space-5);
    align-items: center;
    gap: var(--parent-space-2);
    font-size: var(--parent-font-size-sm);
    font-weight: 780;
}

.math-parent-dashboard-shell .math-parent-learning-link:hover,
.math-parent-dashboard-shell .math-parent-learning-link:focus-visible {
    border-color: var(--parent-border-strong);
    background: rgba(255, 255, 255, 0.14);
    transform: translateY(-2px);
}

.math-parent-dashboard-shell > .math-sync-warning {
    display: none;
}

.math-parent-workspace > .math-sync-warning {
    position: relative;
    z-index: 2;
    width: auto;
    margin: 0 var(--parent-page-gutter) var(--parent-space-3);
}

.math-parent-dashboard-shell .math-parent-content {
    min-width: 0;
    min-height: 0;
    padding: var(--parent-space-4) var(--parent-page-gutter) var(--parent-page-gutter);
    flex: 1;
    overflow: auto;
    overscroll-behavior: contain;
}

.math-parent-dashboard-shell .math-parent-page-heading,
.math-parent-dashboard-shell .math-parent-overview-grid,
.math-parent-dashboard-shell .math-parent-learning-grid,
.math-parent-dashboard-shell .math-parent-reports-layout,
.math-parent-dashboard-shell .math-parent-data-status {
    max-width: var(--parent-content-max);
}

.math-parent-dashboard-shell .math-parent-bottom-navigation {
    display: none;
}

@media (max-width: 1180px) {
    .math-parent-dashboard-shell {
        --parent-sidebar-wide: clamp(13.5rem, 24vw, 17rem);
        --parent-page-gutter: clamp(1.25rem, 3vw, 2.25rem);
    }

    .math-parent-dashboard-shell .math-parent-sidebar {
        padding-right: var(--parent-space-5);
        padding-left: var(--parent-space-5);
    }

    .math-parent-dashboard-shell .math-parent-child-card {
        grid-template-columns: 3rem minmax(0, 1fr);
    }

    .math-parent-dashboard-shell .math-parent-avatar {
        width: 3rem;
        height: 3rem;
    }

    .math-parent-dashboard-shell .math-parent-nav-link {
        padding: 0 var(--parent-space-4);
        font-size: var(--parent-font-size-body);
    }
}

@media (max-width: 900px) {
    .math-parent-dashboard-shell {
        padding-bottom: calc(4.75rem + env(safe-area-inset-bottom));
    }

    .math-parent-dashboard-shell .math-parent-layout {
        display: flex;
        height: calc(100svh - 4.75rem - env(safe-area-inset-bottom));
        flex-direction: column;
    }

    .math-parent-dashboard-shell .math-parent-sidebar {
        display: flex;
        min-height: 4.75rem;
        padding: var(--parent-space-3) var(--parent-page-gutter);
        flex: 0 0 auto;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: var(--parent-space-4);
        border-right: 0;
        border-bottom: 1px solid var(--parent-divider);
        background: rgba(4, 6, 56, 0.64);
        backdrop-filter: blur(var(--parent-glass-blur));
        -webkit-backdrop-filter: blur(var(--parent-glass-blur));
    }

    .math-parent-dashboard-shell .math-parent-navigation,
    .math-parent-dashboard-shell .math-parent-signout {
        display: none;
    }

    .math-parent-dashboard-shell .math-parent-brand-logo {
        width: 8.5rem;
    }

    .math-parent-dashboard-shell .math-parent-brand-mark {
        width: 2.75rem;
        height: 2.75rem;
    }

    .math-parent-dashboard-shell .math-parent-child-card {
        width: min(20rem, calc(100% - 4rem));
        max-width: none;
        margin: 0;
        padding: var(--parent-space-1) var(--parent-space-2);
        grid-template-columns: 2.75rem minmax(0, 1fr);
        border-radius: var(--parent-radius-md);
    }

    .math-parent-dashboard-shell .math-parent-child-card > .math-parent-avatar {
        width: 2.75rem;
        height: 2.75rem;
    }

    .math-parent-dashboard-shell .math-parent-child-menu {
        width: min(20rem, calc(100% - 9.5rem));
        max-width: none;
        margin: 0;
    }

    .math-parent-dashboard-shell .math-parent-child-menu > summary {
        min-height: 3.75rem;
        padding: var(--parent-space-1) var(--parent-space-2);
        grid-template-columns: 2.75rem minmax(0, 1fr) 2.5rem;
        gap: var(--parent-space-2);
    }

    .math-parent-dashboard-shell .math-parent-child-menu > summary > .math-parent-avatar {
        width: 2.75rem;
        height: 2.75rem;
    }

    .math-parent-dashboard-shell .math-parent-child-menu-chevron {
        width: 2.5rem;
        height: 2.5rem;
    }

    .math-parent-dashboard-shell .math-parent-child-picker select,
    .math-parent-dashboard-shell .math-parent-child-picker button {
        height: 2.5rem;
        min-height: 2.5rem;
    }

    .math-parent-dashboard-shell .math-parent-child-picker button {
        width: 2.5rem;
    }

    .math-parent-dashboard-shell .math-parent-child-picker > div {
        grid-template-columns: minmax(0, 1fr) 2.5rem;
    }

    .math-parent-dashboard-shell .math-parent-child-picker > small {
        display: none;
    }

    .math-parent-workspace {
        flex: 1;
    }

    .math-parent-dashboard-shell .math-parent-header {
        min-height: 4.25rem;
        padding: var(--parent-space-3) var(--parent-page-gutter) 0;
    }

    .math-parent-dashboard-shell .math-parent-content {
        padding-top: var(--parent-space-4);
    }

    .math-parent-dashboard-shell .math-parent-bottom-navigation {
        position: fixed;
        z-index: 4;
        right: 0;
        bottom: 0;
        left: 0;
        display: grid;
        height: calc(4.75rem + env(safe-area-inset-bottom));
        padding: var(--parent-space-2) var(--parent-space-3) calc(var(--parent-space-2) + env(safe-area-inset-bottom));
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: var(--parent-space-1);
        border-top: 1px solid var(--parent-border-default);
        background: rgba(4, 6, 56, 0.9);
        backdrop-filter: blur(var(--parent-glass-blur));
        -webkit-backdrop-filter: blur(var(--parent-glass-blur));
    }

    .math-parent-dashboard-shell .math-parent-bottom-navigation .math-parent-nav-link {
        display: flex;
        min-width: 0;
        min-height: 0;
        padding: var(--parent-space-1);
        flex-direction: column;
        justify-content: center;
        gap: 0;
        border-radius: var(--parent-radius-md);
        font-size: var(--parent-font-size-xs);
    }

    .math-parent-dashboard-shell .math-parent-bottom-navigation .math-parent-nav-link > span {
        width: auto;
        height: auto;
        font-size: 1.15rem;
    }

    .math-parent-dashboard-shell .math-parent-bottom-navigation .math-parent-nav-link > small {
        overflow: hidden;
        max-width: 100%;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
}

@media (max-width: 520px) {
    .math-parent-dashboard-shell {
        --parent-page-gutter: 1rem;
    }

    .math-parent-dashboard-shell .math-parent-sidebar {
        min-height: 4.25rem;
        padding-top: var(--parent-space-2);
        padding-bottom: var(--parent-space-2);
    }

    .math-parent-dashboard-shell .math-parent-brand-mark {
        width: 2.5rem;
        height: 2.5rem;
    }

    .math-parent-dashboard-shell .math-parent-brand-logo {
        width: 5.75rem;
    }

    .math-parent-dashboard-shell .math-parent-child-card {
        width: min(17rem, calc(100% - 3.25rem));
        grid-template-columns: 2.5rem minmax(0, 1fr);
    }

    .math-parent-dashboard-shell .math-parent-child-card > .math-parent-avatar {
        width: 2.5rem;
        height: 2.5rem;
    }

    .math-parent-dashboard-shell .math-parent-child-menu {
        width: min(17rem, calc(100% - 6.75rem));
    }

    .math-parent-dashboard-shell .math-parent-child-menu > summary {
        min-height: 3.25rem;
        padding: var(--parent-space-1);
        grid-template-columns: 2.5rem minmax(0, 1fr) 2.25rem;
        gap: var(--parent-space-1);
    }

    .math-parent-dashboard-shell .math-parent-child-menu > summary > .math-parent-avatar {
        width: 2.5rem;
        height: 2.5rem;
    }

    .math-parent-dashboard-shell .math-parent-child-menu-chevron {
        width: 2.25rem;
        height: 2.25rem;
    }

    .math-parent-dashboard-shell .math-parent-header {
        min-height: 3.75rem;
        padding-top: var(--parent-space-2);
    }

    .math-parent-dashboard-shell .math-parent-learning-link {
        min-height: var(--parent-touch-target);
    }

    .math-parent-dashboard-shell .math-parent-learning-link {
        padding: 0 var(--parent-space-3);
        font-size: 0;
    }

    .math-parent-dashboard-shell .math-parent-learning-link::after {
        content: "Learning";
        font-size: var(--parent-font-size-xs);
    }

    .math-parent-dashboard-shell .math-parent-learning-link > span {
        font-size: 1rem;
    }
}

@media (max-height: 600px) and (orientation: landscape) and (min-width: 901px) {
    .math-parent-dashboard-shell .math-parent-sidebar {
        padding-top: var(--parent-space-4);
        padding-bottom: var(--parent-space-4);
    }

    .math-parent-dashboard-shell .math-parent-child-card {
        margin-top: var(--parent-space-4);
    }

    .math-parent-dashboard-shell .math-parent-navigation {
        margin-top: var(--parent-space-4);
        padding: var(--parent-space-2) 0;
        gap: 0;
    }

    .math-parent-dashboard-shell .math-parent-nav-link {
        min-height: 2.75rem;
    }

    .math-parent-dashboard-shell .math-parent-header {
        min-height: 4.25rem;
        padding-top: var(--parent-space-3);
    }
}

@media (prefers-reduced-motion: reduce) {
.math-parent-dashboard-shell .math-parent-nav-link,
.math-parent-dashboard-shell .math-parent-learning-link,
    .math-parent-dashboard-shell .math-parent-signout {
        transition: none;
    }
}