/* ================================================================
   11. RESPONSIVE
   ================================================================ */
@media (max-width: 1040px) {
    .admin-shell {
        grid-template-columns: 1fr;
        overflow-x: visible;
    }

    .admin-sidebar {
        position: relative;
        left: auto;
        width: auto;
        top: 0;
        display: block;
        min-height: auto;
        max-height: 100vh;
        overflow: visible;
        border-right: 0;
        border-bottom: 1px solid var(--admin-color-border);
        padding: 14px 18px;
        z-index: 50;
        box-shadow: var(--admin-shadow-mobile-sidebar);
    }

    .admin-sidebar-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 18px;
    }

    .admin-brand {
        min-width: 0;
        gap: 6px;
        padding: 0;
    }

    .admin-brand img {
        width: 112px;
        margin-bottom: 6px;
    }

    .admin-brand span {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .admin-brand-separator {
        display: none;
    }

    .admin-menu-toggle {
        display: inline-grid;
        width: 44px;
        height: 44px;
        flex: 0 0 auto;
        align-content: center;
        justify-content: center;
        gap: 5px;
        border: 0;
        border-radius: var(--admin-radius-pill);
        background: var(--admin-color-surface-muted);
        cursor: pointer;
        transition: background 140ms ease, box-shadow 140ms ease;
    }

    .admin-menu-toggle span {
        display: block;
        width: 22px;
        height: 2px;
        border-radius: var(--admin-radius-pill);
        background: var(--admin-color-text);
        transition: transform 160ms ease, opacity 160ms ease;
    }

    .admin-menu-toggle:hover {
        background: var(--admin-color-border);
        box-shadow: inset 0 0 0 1px var(--admin-color-border-control);
    }

    .admin-sidebar.is-menu-open .admin-menu-toggle span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .admin-sidebar.is-menu-open .admin-menu-toggle span:nth-child(2) {
        opacity: 0;
    }

    .admin-sidebar.is-menu-open .admin-menu-toggle span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .admin-menu {
        position: absolute;
        left: 18px;
        right: 18px;
        top: calc(100% + 8px);
        display: none;
        grid-template-columns: 1fr;
        gap: 6px;
        max-height: calc(100vh - 96px);
        overflow-y: auto;
        border: 1px solid var(--admin-color-border);
        border-radius: var(--admin-radius-xl);
        background: var(--admin-color-surface);
        box-shadow: var(--admin-shadow-mobile-menu);
        padding: 8px;
    }

    .admin-sidebar.is-menu-open .admin-menu {
        display: grid;
    }

    .admin-menu a {
        text-align: left;
    }

    .admin-menu-logout {
        margin-top: 0;
        margin-bottom: 0;
    }

    .admin-main {
        grid-column: auto;
        min-width: 0;
        width: 100%;
        max-width: 100%;
        padding: 24px;
    }

    .admin-section-header {
        flex-wrap: wrap;
        align-items: flex-start;
    }

    .admin-table-section,
    .admin-panel,
    .admin-metric-card {
        min-width: 0;
        max-width: 100%;
    }

    .admin-table-wrap {
        width: 100%;
        max-width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .admin-evolution-filters {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr)) auto;
        margin-left: 0;
    }

    .admin-metrics-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-dashboard-grid {
        width: 100%;
        max-width: 100%;
        grid-template-columns: 1fr;
        margin-right: auto;
        margin-left: auto;
    }

    .admin-dashboard-grid > .admin-panel {
        width: 100%;
    }

    .admin-donor-summary {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-donor-layout,
    .admin-detail-list,
    .admin-form-grid {
        grid-template-columns: 1fr;
    }

    .admin-donor-side-column {
        height: auto;
        max-height: none;
        grid-template-rows: none;
        overflow: visible;
    }

    .admin-donor-scroll-panel {
        min-height: 0;
        overflow: visible;
    }

    .admin-donor-scroll-panel .admin-profile-actions,
    .admin-donor-scroll-panel .admin-table-wrap {
        flex: initial;
        min-height: 0;
    }

    .admin-form-span-2 {
        grid-column: auto;
    }

    .admin-detail-span-2 {
        grid-column: auto;
    }

    .admin-detail-subgrid {
        grid-template-columns: 1fr;
    }

    .admin-filters {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-donations-filters {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-campaigns-filters {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-recurrences-filters {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-filter-actions {
        grid-column: 1 / -1;
    }
}

@media (max-width: 860px) {
    .admin-main {
        padding: 20px;
    }
}

@media (max-width: 560px) {
    .admin-login-page {
        padding: 16px;
    }

    .admin-login-panel {
        padding: 24px;
    }

    .admin-topbar {
        display: grid;
    }

    .admin-list-topbar {
        display: flex;
        flex-direction: column;
        align-items: stretch;
    }

    .admin-list-actions {
        width: 100%;
        justify-content: flex-end;
        flex-wrap: wrap;
    }

    .admin-list-actions .admin-excel-button {
        margin-left: auto;
    }

    .admin-main {
        padding-right: 16px;
        padding-left: 16px;
    }

    .admin-dashboard-grid {
        gap: 14px;
    }

    .admin-bars {
        padding-right: 16px;
        padding-left: 16px;
    }

    .admin-section-title-nav,
    .admin-month-legend {
        width: 100%;
        flex-wrap: wrap;
        white-space: normal;
    }

    .admin-filters {
        grid-template-columns: 1fr;
    }

    .admin-evolution-filters {
        grid-template-columns: 1fr;
    }

    .admin-donations-filters {
        grid-template-columns: 1fr;
    }

    .admin-campaigns-filters {
        grid-template-columns: 1fr;
    }

    .admin-recurrences-filters {
        grid-template-columns: 1fr;
    }

    .admin-metrics-grid {
        grid-template-columns: 1fr;
    }

    .admin-summary-row-2,
    .admin-summary-row-3 {
        grid-template-columns: 1fr;
    }

    .admin-summary-item {
        border-right: 0;
        border-bottom: 1px solid var(--admin-color-border-soft);
    }

    .admin-summary-row:last-child .admin-summary-item:last-child {
        border-bottom: 0;
    }

    .admin-donor-summary {
        grid-template-columns: 1fr;
    }

    .admin-filter-actions {
        display: grid;
    }

}

@media (max-width: 450px) {
    .admin-bar-label {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .admin-bar-label span,
    .admin-bar-label strong {
        max-width: 100%;
        white-space: normal;
    }

    .admin-check-list-compact {
        grid-template-columns: 1fr;
    }
}