/* Batch 7 assignments and consolidated readiness workspace. */

.r2-assignments {
    min-width: 0;
    max-width: 100%;
    display: grid;
    gap: var(--r2-space-6);
    max-width: 1240px;
    margin-inline: auto;
}

.r2-assignments__header {
    margin-bottom: 0;
}

.r2-assignment-tabs {
    display: flex;
    gap: var(--r2-space-1);
    overflow-x: auto;
    padding-bottom: var(--r2-space-1);
    border-bottom: 1px solid var(--r2-border);
}

.r2-assignment-tabs a {
    display: grid;
    min-width: 9rem;
    gap: 0.1rem;
    padding: var(--r2-space-3) var(--r2-space-4);
    border-bottom: 2px solid transparent;
    color: var(--r2-text-secondary);
    text-decoration: none;
    white-space: nowrap;
}

.r2-assignment-tabs a:hover {
    background: var(--r2-surface-subtle);
    color: var(--r2-primary);
}

.r2-assignment-tabs a[aria-current="page"] {
    border-bottom-color: var(--r2-primary);
    color: var(--r2-primary);
    font-weight: var(--r2-weight-medium);
}

.r2-assignment-tabs small {
    color: var(--r2-text-muted);
    font-size: var(--r2-font-size-xs);
    font-weight: var(--r2-weight-normal);
}

.r2-assignment-issues {
    padding-top: var(--r2-space-5);
}

.r2-assignment-toolbar {
    display: grid;
    grid-template-columns: minmax(14rem, 1.4fr) repeat(4, minmax(9rem, 1fr)) auto;
    gap: var(--r2-space-3);
    align-items: end;
    margin-bottom: var(--r2-space-4);
}

.r2-search-field,
.r2-assignment-filter {
    display: grid;
    gap: var(--r2-space-1);
    color: var(--r2-text-secondary);
    font-size: var(--r2-font-size-xs);
}

.r2-assignment-bulk {
    display: grid;
    grid-template-columns: minmax(14rem, 1fr) minmax(14rem, 18rem) auto auto auto;
    gap: var(--r2-space-2);
    align-items: center;
    margin-bottom: var(--r2-space-4);
    padding: var(--r2-space-3) var(--r2-space-4);
    border-top: 1px solid var(--r2-primary-border);
    border-bottom: 1px solid var(--r2-primary-border);
    background: var(--r2-primary-soft);
}

.r2-assignment-bulk[hidden] {
    display: none;
}

.r2-assignment-bulk > div {
    display: grid;
    gap: 0.1rem;
}

.r2-assignment-bulk > div span {
    color: var(--r2-text-secondary);
    font-size: var(--r2-font-size-xs);
}

.r2-assignment-bulk .r2-form-error {
    grid-column: 1 / -1;
    margin: 0;
}

.r2-assignment-select-column {
    width: 2.75rem;
    text-align: center;
}

.r2-assignment-select-column input {
    width: 1rem;
    height: 1rem;
    accent-color: var(--r2-primary);
}

.r2-assignment-table {
    min-width: 64rem;
}

.r2-assignment-class-column,
.r2-assignment-class-cell {
    width: 7.5rem;
}

.r2-assignment-class-name {
    display: block;
    color: var(--r2-text);
    font-size: var(--r2-font-size-sm);
    font-weight: var(--r2-weight-semibold);
    letter-spacing: 0.01em;
}

.r2-assignment-filter-reset {
    align-self: end;
    white-space: nowrap;
}

.r2-assignment-table tr.is-focused {
    background: var(--r2-primary-soft);
    outline: 2px solid var(--r2-primary-border);
    outline-offset: -2px;
}

.r2-assignment-row-actions {
    flex-wrap: nowrap;
    justify-content: flex-end;
}

.r2-assignment-filter-empty {
    padding-block: var(--r2-space-6);
}

.r2-assignment-dialog__summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--r2-space-3);
    margin: 0 0 var(--r2-space-5);
    padding: var(--r2-space-3) 0;
    border-top: 1px solid var(--r2-divider);
    border-bottom: 1px solid var(--r2-divider);
}

.r2-assignment-dialog__summary div {
    min-width: 0;
}

.r2-assignment-dialog__summary dt {
    color: var(--r2-text-muted);
    font-size: var(--r2-font-size-xs);
}

.r2-assignment-dialog__summary dd {
    margin: var(--r2-space-1) 0 0;
    overflow-wrap: break-word;
    font-size: var(--r2-font-size-sm);
    font-weight: var(--r2-weight-medium);
}

.r2-assignment-future-lock {
    margin-top: var(--r2-space-4);
}

.r2-assignment-future-lock small {
    display: block;
    margin-top: 0.15rem;
    color: var(--r2-text-muted);
    font-size: var(--r2-font-size-xs);
}

[data-assignment-preview-result].is-success,
[data-assignment-bulk-result].is-success {
    color: var(--r2-success);
}

[data-assignment-preview-result].is-error,
[data-assignment-bulk-result].is-error {
    color: var(--r2-danger);
}

.r2-assignment-help {
    margin-top: calc(var(--r2-space-2) * -1);
}

@media (max-width: 70rem) {
    .r2-assignment-bulk {
        grid-template-columns: minmax(14rem, 1fr) minmax(14rem, 1fr) auto auto;
    }

    .r2-assignment-bulk [data-assignment-selection-clear] {
        grid-column: 1 / -1;
        justify-self: start;
    }
}

@media (max-width: 52rem) {
    .r2-assignment-toolbar {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .r2-search-field {
        grid-column: 1 / -1;
    }

    .r2-assignment-bulk {
        grid-template-columns: 1fr 1fr;
    }

    .r2-assignment-bulk > div,
    .r2-assignment-bulk > label,
    .r2-assignment-bulk .r2-form-error {
        grid-column: 1 / -1;
    }

    .r2-assignment-dialog__summary {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 36rem) {
    .r2-assignment-toolbar,
    .r2-assignment-bulk {
        grid-template-columns: 1fr;
    }

    .r2-assignment-filter,
    .r2-assignment-bulk > * {
        grid-column: 1;
    }

    .r2-assignment-bulk .r2-button {
        width: 100%;
    }
}

/* Batch 49.2: filtering must win over table row display rules in every browser. */
.r2-assignments [data-assignment-row].is-filtered-out,
.r2-assignments [data-assignment-row][hidden] {
    display: none !important;
}

.r2-assignment-filter-count {
    align-self: end;
    padding: 0 0 var(--r2-space-2);
    color: var(--r2-text-muted);
    font-size: var(--r2-font-size-xs);
    white-space: nowrap;
}

/* Batch 54.8: planning matrix for future generation rules. */
.r2-assignment-planning {
    display: grid;
    /* Critical: the default implicit grid track is `auto`, which expands to
       the matrix max-content width. That makes the overflow wrapper as wide
       as the table, so scrollWidth == clientWidth and horizontal scrolling is
       impossible. Constrain the track to the available page width instead. */
    grid-template-columns: minmax(0, 1fr);
    gap: var(--r2-space-4);
}

.r2-assignment-planning__header {
    align-items: flex-start;
}

.r2-assignment-copybar {
    display: grid;
    grid-template-columns: minmax(14rem, 1fr) minmax(8rem, 11rem) minmax(8rem, 11rem) auto minmax(12rem, 1fr);
    gap: var(--r2-space-3);
    align-items: end;
    padding: var(--r2-space-3) var(--r2-space-4);
    border: 1px solid var(--r2-border);
    border-radius: var(--r2-radius-md);
    background: var(--r2-surface-subtle);
}

.r2-assignment-copybar > div {
    display: grid;
    gap: 0.1rem;
}

.r2-assignment-copybar > div span,
.r2-assignment-copybar label > span {
    color: var(--r2-text-muted);
    font-size: var(--r2-font-size-xs);
}

.r2-assignment-copybar label {
    display: grid;
    gap: var(--r2-space-1);
}

.r2-assignment-planning {
    width: 100%;
    min-width: 0;
    max-width: 100%;
}

.r2-assignment-planning > * {
    min-width: 0;
}

.r2-assignment-matrix-wrap {
    display: block;
    box-sizing: border-box;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-gutter: stable;
    overscroll-behavior-inline: contain;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--r2-border);
    border-radius: var(--r2-radius-md);
    background: var(--r2-surface);
    scrollbar-width: auto;
}

.r2-assignment-matrix-wrap:focus-visible {
    outline: 2px solid var(--r2-focus, #2563eb);
    outline-offset: 2px;
}

.r2-assignment-matrix-scrollcontent {
    display: inline-block;
    box-sizing: border-box;
    width: max-content;
    min-width: 100%;
    vertical-align: top;
}

.r2-assignment-matrix {
    width: 100%;
    min-width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: var(--r2-font-size-sm);
}

.r2-assignment-matrix th,
.r2-assignment-matrix td {
    min-width: 14rem;
    padding: var(--r2-space-3);
    border-right: 1px solid var(--r2-divider);
    border-bottom: 1px solid var(--r2-divider);
    vertical-align: top;
    background: var(--r2-surface);
}

.r2-assignment-matrix thead th {
    position: sticky;
    top: 0;
    z-index: 4;
    text-align: left;
    background: var(--r2-surface-subtle);
}

.r2-assignment-matrix thead th small {
    display: block;
    margin-top: 0.15rem;
    color: var(--r2-text-muted);
    font-weight: var(--r2-weight-normal);
}

.r2-assignment-matrix .r2-assignment-matrix__subject {
    position: sticky;
    left: 0;
    z-index: 3;
    min-width: 12rem;
    max-width: 16rem;
    background: var(--r2-surface-subtle);
}

.r2-assignment-matrix thead .r2-assignment-matrix__subject {
    z-index: 6;
}

.r2-assignment-plan-cell {
    position: relative;
}

.r2-assignment-plan-cell.has-problem {
    box-shadow: inset 3px 0 0 var(--r2-danger);
}

.r2-assignment-plan-cell.is-explicit {
    background: color-mix(in srgb, var(--r2-success) 6%, var(--r2-surface));
}

.r2-assignment-plan-cell.is-homeroom,
.r2-assignment-plan-cell.is-auto {
    background: color-mix(in srgb, var(--r2-primary) 4%, var(--r2-surface));
}

.r2-assignment-plan-cell.is-empty {
    color: var(--r2-text-muted);
    text-align: center;
    background: var(--r2-surface-subtle);
}

.r2-assignment-plan-select {
    width: 100%;
    min-width: 12rem;
}

.r2-assignment-plan-meta,
.r2-assignment-plan-static,
.r2-assignment-plan-save {
    display: block;
    margin-top: var(--r2-space-1);
    color: var(--r2-text-muted);
    font-size: var(--r2-font-size-xs);
    line-height: 1.35;
}

.r2-assignment-plan-save[data-state="saving"] {
    color: var(--r2-primary);
}

.r2-assignment-plan-save[data-state="saved"] {
    color: var(--r2-success);
}

.r2-assignment-plan-save[data-state="warning"] {
    color: #9a6700;
    font-weight: 600;
}

.r2-assignment-plan-save[data-state="error"] {
    color: var(--r2-danger);
}

.r2-assignment-plan-fix {
    display: inline-block;
    margin-top: var(--r2-space-1);
    font-size: var(--r2-font-size-xs);
}

@media (max-width: 60rem) {
    .r2-assignment-copybar {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .r2-assignment-copybar > div,
    .r2-assignment-copybar [data-assignment-copy-result] {
        grid-column: 1 / -1;
    }
}

@media (max-width: 38rem) {
    .r2-assignment-copybar {
        grid-template-columns: 1fr;
    }
    .r2-assignment-copybar > * {
        grid-column: 1;
    }
    .r2-assignment-matrix th,
    .r2-assignment-matrix td {
        min-width: 12rem;
    }
}

/* Batch 54.8.1: clearer planning cells, collapsible workspaces, safer bulk actions. */
.r2-workspace-disclosure{padding:0;overflow:hidden}.r2-workspace-disclosure>.r2-workspace-disclosure__summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 20px;cursor:pointer;list-style:none;background:var(--r2-surface-muted,#f8fafc);border-bottom:1px solid transparent}.r2-workspace-disclosure>.r2-workspace-disclosure__summary::-webkit-details-marker{display:none}.r2-workspace-disclosure>.r2-workspace-disclosure__summary:before{content:'›';font-size:1.35rem;font-weight:700;flex:0 0 auto;transition:transform .16s ease}.r2-workspace-disclosure[open]>.r2-workspace-disclosure__summary{border-bottom-color:var(--r2-border,#d7dee8)}.r2-workspace-disclosure[open]>.r2-workspace-disclosure__summary:before{transform:rotate(90deg)}.r2-workspace-disclosure__summary>div:first-of-type{min-width:0;margin-right:auto}.r2-workspace-disclosure__summary h2{margin:0 0 4px}.r2-workspace-disclosure__summary p{margin:0}.r2-assignment-planning__actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;padding:12px 16px;border-bottom:1px solid var(--r2-border,#d7dee8)}.r2-assignment-planning__actions>p{margin:0 auto 0 0;color:var(--r2-text-muted,#68758a);font-size:.88rem}.r2-assignment-planning__footnote{padding:0 16px 14px;margin:0}.r2-assignment-plan-cell{vertical-align:top}.r2-assignment-plan-select{font-weight:600}.r2-assignment-plan-meta{display:block;margin-top:7px;line-height:1.35}.r2-assignment-plan-meta--teacher{font-weight:600;color:var(--r2-text,#14213d)}.r2-assignment-plan-meta--facts{font-size:.8rem;color:var(--r2-text-muted,#68758a)}.r2-assignment-plan-meta--facts .is-near{color:#9a6700;font-weight:700}.r2-assignment-plan-meta--facts .is-over{color:#b42318;font-weight:700}.r2-assignment-plan-save{display:block;min-height:1.2em;margin-top:4px;font-size:.78rem}.r2-assignment-copy-dialog{width:min(580px,calc(100vw - 32px))}.r2-assignment-copy-dialog__body{display:grid;grid-template-columns:1fr 1fr;gap:14px}.r2-assignment-copy-dialog__body label{display:grid;gap:6px}.r2-assignment-copy-dialog__body .r2-alert,.r2-assignment-copy-dialog__body .r2-form-error{grid-column:1/-1;margin:0}.r2-assignment-details>.r2-assignment-toolbar{margin:16px}.r2-assignment-details>.r2-assignment-bulk{margin:0 16px 16px}.r2-assignment-details>.r2-table-wrap{border-top:1px solid var(--r2-border,#d7dee8)}
@media(max-width:780px){.r2-workspace-disclosure>.r2-workspace-disclosure__summary{align-items:flex-start;padding:14px;gap:10px}.r2-workspace-disclosure__summary>.r2-cluster{justify-content:flex-end}.r2-assignment-planning__actions{align-items:flex-start;flex-direction:column}.r2-assignment-copy-dialog__body{grid-template-columns:1fr}.r2-assignment-copy-dialog__body .r2-alert,.r2-assignment-copy-dialog__body .r2-form-error{grid-column:auto}}