/* Parent Dashboard — focused Overview. */
html:has(.math-parent-dashboard-shell[data-parent-section="overview"]),
body:has(.math-parent-dashboard-shell[data-parent-section="overview"]) {
    overflow: hidden;
}

.math-parent-dashboard-shell [data-parent-section="overview"].math-parent-content {
    padding-top: 0;
    overflow: auto;
}

.math-parent-overview {
    width: 100%;
}

.math-parent-period-switch {
    display: grid;
    width: min(100%, 49.5rem);
    min-height: 4.5rem;
    margin: 0 0 clamp(2rem, 4vw, 4.75rem);
    grid-template-columns: repeat(3, minmax(0, 1fr));
    overflow: hidden;
    border: 1px solid var(--parent-border-default);
    border-radius: var(--parent-radius-xl);
    background: var(--parent-surface-raised);
    box-shadow: var(--parent-shadow-control);
}

.math-parent-period-switch button {
    min-width: 0;
    min-height: 4.5rem;
    padding: 0 var(--parent-space-5);
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--parent-color-text-muted);
    font: inherit;
    font-size: clamp(1rem, 1.5vw, 1.55rem);
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    transition: background var(--parent-duration-normal) var(--parent-ease-standard), color var(--parent-duration-normal) var(--parent-ease-standard);
}

.math-parent-period-switch button[aria-selected="true"] {
    background: var(--parent-gradient-active);
    color: var(--parent-color-text);
}

.math-parent-period-switch button:not([aria-selected="true"]):hover,
.math-parent-period-switch button:not([aria-selected="true"]):focus-visible {
    background: var(--parent-surface-soft);
    color: var(--parent-color-text);
}

.math-parent-kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(1rem, 1.75vw, 1.65rem);
}

.math-parent-kpi-card {
    display: flex;
    min-width: 0;
    min-height: 10.5rem;
    padding: clamp(1.1rem, 1.6vw, 1.5rem);
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    text-align: left;
}

.math-parent-kpi-card h2 {
    width: 100%;
    margin: 0;
    color: #82ff82;
    font-size: clamp(.92rem, .82rem + .27vw, 1.125rem);
    font-weight: 850;
    letter-spacing: .045em;
    line-height: 1.15;
    text-align: left;
    text-transform: uppercase;
}

.math-parent-kpi-value {
    display: flex;
    min-height: 3.75rem;
    align-items: center;
    justify-content: flex-start;
    color: var(--parent-color-text);
    font-size: clamp(2rem, 2.5vw, 2.75rem);
    font-weight: 850;
    letter-spacing: -.03em;
    line-height: 1;
    overflow-wrap: normal;
    white-space: nowrap;
}

.math-parent-kpi-card:nth-child(2) .math-parent-kpi-value {
    font-size: clamp(1.65rem, 2.15vw, 2.35rem);
}

.math-parent-kpi-footer {
    display: flex;
    width: 100%;
    align-items: flex-end;
    justify-content: space-between;
    gap: .65rem;
    color: var(--parent-color-text-muted);
    font-size: clamp(.72rem, .85vw, .86rem);
    line-height: 1.25;
    text-align: left;
}

.math-parent-kpi-footer > span:first-child {
    min-width: 0;
}

.math-parent-kpi-change {
    flex: 0 0 auto;
    font-weight: 750;
    white-space: nowrap;
}

.math-parent-kpi-change.is-up { color: #82ff82; }
.math-parent-kpi-change.is-down { color: #ff6666; }
.math-parent-kpi-change.is-neutral { color: var(--parent-color-text-subtle); }

.math-parent-history-card {
    margin-top: clamp(1.5rem, 2.5vw, 2rem);
    overflow: hidden;
    border: 1px solid var(--parent-border-soft);
    border-radius: var(--parent-radius-md);
    background: var(--parent-surface-glass);
    box-shadow: var(--parent-shadow-card);
}

.math-parent-history-title {
    margin: 0;
    padding: 1.15rem .75rem;
    border-bottom: 1px solid var(--parent-border-soft);
    background: rgba(46, 47, 112, .78);
    color: #82ff82;
    font-size: clamp(1.1875rem, .98rem + .5vw, 1.5rem);
    font-weight: 800;
    line-height: 1.15;
    text-align: left;
}

.math-parent-history-scroll {
    min-height: 20rem;
    overflow-x: auto;
    scrollbar-color: rgba(255,255,255,.28) transparent;
}

.math-parent-history-table {
    width: 100%;
    min-width: 52rem;
    table-layout: fixed;
    border-collapse: collapse;
    color: var(--parent-color-text-muted);
    font-size: clamp(.76rem, .9vw, .9rem);
}

.math-parent-history-table th,
.math-parent-history-table td {
    height: 3.75rem;
    padding: .85rem .75rem;
    border: 0;
    text-align: left;
    vertical-align: middle;
    overflow-wrap: break-word;
}

.math-parent-history-table :is(th, td):nth-child(1) { width: 15%; }
.math-parent-history-table :is(th, td):nth-child(2) { width: 12%; }
.math-parent-history-table :is(th, td):nth-child(3) { width: 13%; }
.math-parent-history-table :is(th, td):nth-child(4) { width: 9%; }
.math-parent-history-table :is(th, td):nth-child(5) { width: 11%; }
.math-parent-history-table :is(th, td):nth-child(6) { width: 10%; }
.math-parent-history-table :is(th, td):nth-child(7) { width: 15%; }
.math-parent-history-table :is(th, td):nth-child(8) { width: 15%; }

.math-parent-history-table th {
    background: rgba(46, 47, 112, .78);
    color: var(--parent-color-text);
    font-weight: 800;
    font-size: clamp(.7rem, .78vw, .82rem);
    white-space: nowrap;
}

.math-parent-history-table tbody tr:nth-child(even) {
    background: rgba(48, 49, 116, .42);
}

.math-parent-history-table tbody tr:nth-child(odd) {
    background: rgba(12, 18, 67, .3);
}

.math-parent-history-table td.is-completed { color: #82ff82; }
.math-parent-history-table td.is-in-progress,
.math-parent-history-table td.is-started { color: #ffb14a; }
.math-parent-history-table td.is-locked { color: var(--parent-color-text-subtle); }

.math-parent-history-link {
    color: var(--parent-color-text) !important;
    text-decoration: underline !important;
    text-underline-offset: .2em;
}

.math-parent-history-empty {
    display: grid;
    min-height: 20rem;
    margin: 0;
    place-items: center;
    padding: var(--parent-card-padding);
    color: var(--parent-color-text-muted);
    text-align: center;
}

@media (max-width: 1120px) {
    .math-parent-kpi-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .math-parent-kpi-card {
        min-height: 10.5rem;
    }
}

@media (max-width: 820px) {
    .math-parent-period-switch {
        width: 100%;
        min-height: 3.75rem;
        margin-bottom: var(--parent-space-5);
    }

    .math-parent-period-switch button {
        min-height: 3.75rem;
        padding-inline: var(--parent-space-3);
        font-size: clamp(.88rem, 3vw, 1.15rem);
    }
}

@media (max-width: 620px) {
    .math-parent-kpi-grid {
        gap: var(--parent-space-3);
    }

    .math-parent-kpi-card {
        min-height: 9.5rem;
        padding: var(--parent-space-4);
    }

    .math-parent-kpi-footer {
        display: grid;
        gap: .25rem;
    }

    .math-parent-history-card {
        overflow: visible;
        border: 0;
        background: transparent;
        box-shadow: none;
    }

    .math-parent-history-title {
        margin-bottom: var(--parent-space-3);
        padding: 0;
        border: 0;
        background: transparent;
    }

    .math-parent-history-scroll {
        min-height: 0;
        overflow: visible;
    }

    .math-parent-history-table,
    .math-parent-history-table tbody,
    .math-parent-history-table tr,
    .math-parent-history-table td {
        display: block;
        width: 100%;
        min-width: 0;
    }

    .math-parent-history-table :is(th, td):nth-child(n) {
        width: 100%;
    }

    .math-parent-history-table thead {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
        white-space: nowrap;
    }

    .math-parent-history-table tr {
        margin-bottom: var(--parent-space-3);
        padding: var(--parent-space-3);
        border: 1px solid var(--parent-border-soft);
        border-radius: var(--parent-radius-md);
        background: var(--parent-surface-glass) !important;
        box-shadow: var(--parent-shadow-card);
    }

    .math-parent-history-table td {
        display: grid;
        height: auto;
        min-height: 2.25rem;
        padding: .45rem 0;
        grid-template-columns: minmax(7rem, 42%) minmax(0, 1fr);
        gap: .75rem;
        border-bottom: 1px solid rgba(255,255,255,.07);
        text-align: right;
    }

    .math-parent-history-table td:last-child { border-bottom: 0; }

    .math-parent-history-table td::before {
        content: attr(data-label);
        color: var(--parent-color-text-subtle);
        font-weight: 750;
        text-align: left;
    }
}

@media (max-width: 420px) {
    .math-parent-period-switch button {
        font-size: .78rem;
    }

    .math-parent-kpi-grid {
        grid-template-columns: 1fr;
    }

    .math-parent-kpi-card {
        min-height: 8.75rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .math-parent-period-switch button {
        transition: none;
    }
}