/* Phone-only overrides. Desktop and print use their existing stylesheets. */
@media screen and (max-width: 767px) {
  html { -webkit-text-size-adjust: 100%; }
  body { font-size: 14px; }
  .site-header,
  .login-page .site-header,
  .paper-review-page .site-header {
    position: relative;
    min-height: 0;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 4px 8px;
    padding: 10px max(12px, env(safe-area-inset-left)) 0;
  }
  .site-header .brand { grid-column: 1; grid-row: 1; gap: 6px; }
  .brand > span:last-child { min-width: 0; }
  .brand strong { display: block; font-size: 15px; letter-spacing: 0; }
  .brand-mark { width: 28px; height: 28px; flex-basis: 28px; }
  .site-header .account-area { grid-column: 2; grid-row: 1; gap: 0; }
  .account-name { display: none; }
  .site-header .text-button { min-height: 40px; padding: 6px 8px; font-size: 12px; }
  .site-header .printer-status {
    display: none;
  }
  .site-header .main-nav {
    grid-column: 1 / -1; grid-row: 2;
    display: flex; flex-wrap: nowrap; justify-content: flex-start;
    gap: 2px; width: 100%; padding: 6px 0;
    overflow-x: auto; overscroll-behavior-x: contain;
    border-top: 1px solid rgba(0,0,0,.12);
  }
  .role-admin .site-header .main-nav { margin-top: 0; }
  .main-nav a { flex: 1 0 auto; min-height: 42px; padding: 8px 6px; font-size: 14px; }
  .page-shell, .admin-shell, .writing-shell, .overview-shell,
  .paper-review-page .paper-review-editor-shell {
    width: calc(100% - 24px); max-width: none; min-width: 0;
    padding: 18px 0 max(28px, env(safe-area-inset-bottom));
  }
  .page-shell > *, .panel, .panel-heading > *, .hero-row > *,
  .admin-task-layout > *, .admin-grid > * { min-width: 0; max-width: 100%; }
  h1 { font-size: 26px; line-height: 1.3; overflow-wrap: anywhere; }
  h2 { font-size: 19px; line-height: 1.4; overflow-wrap: anywhere; }
  .eyebrow { font-size: 11px; }
  .hero-row, .result-heading, .writing-heading {
    flex-direction: column; align-items: stretch; gap: 12px;
    min-height: 0; margin-bottom: 16px; padding-bottom: 14px;
  }
  .hero-row p, .result-heading p { display: none; }
  .hero-actions { display: flex; flex-wrap: wrap; gap: 8px; }
  .hero-actions > *, .hero-actions .secondary-button, .hero-actions form {
    flex: 1 1 auto; width: auto; min-width: 0;
  }
  .hero-actions form .secondary-button { width: 100%; }
  .primary-button, .secondary-button, .table-button { min-height: 44px; padding: 10px 12px; font-size: 14px; }
  input:not([type='checkbox']):not([type='radio']):not([type='range']):not([type='color']):not([type='hidden']),
  select, textarea { min-width: 0; max-width: 100%; font-size: 16px; }
  input[type='search'], input[type='text'], input[type='password'], input[type='datetime-local'], select { min-height: 44px; }
  label { overflow-wrap: anywhere; }
  .panel { padding: 14px; }
  .admin-task-layout, .admin-grid, .managed-task-row, .sentence-review-list { grid-template-columns: minmax(0, 1fr); }
  .task-manager-panel { order: -1; }
  .managed-task > summary { flex-wrap: wrap; gap: 8px; }
  .managed-task-title { flex: 1 1 140px; min-width: 0; }
  .task-editor, .task-manager-panel, .users-panel, .lookup-panel, .submissions-panel { padding: 12px; }
  .panel-heading, .compact-panel-toolbar { flex-direction: column; align-items: stretch; gap: 14px; }
  .submission-filters, .inline-filters, .submission-filters-simple, .overview-controls {
    display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%; min-width: 0; gap: 10px; align-items: end;
  }
  .submission-filters label, .inline-filters label, .overview-controls label {
    width: auto; min-width: 0; max-width: 100%; font-size: 12px; gap: 6px;
  }
  .submission-filters select, .submission-filters input, .inline-filters select,
  .inline-filters input, .overview-controls select, .overview-controls input { width: 100%; }
  .submission-filters button { width: 100%; }
  .table-wrap, .submissions-panel .table-wrap, .composition-matrix-wrap {
    max-width: 100%; overflow-x: auto; overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
  }
  .users-table { min-width: 650px; }
  .users-table th, .users-table td { font-size: 13px; }
  .record-pagination { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; }
  .pagination-status { flex: 1 0 100%; order: 2; text-align: center; font-size: 12px; }
  .submissions-table { width: 100%; min-width: 0; table-layout: fixed; }
  .submissions-panel:has(.submissions-table) .table-wrap { overflow: visible; }
  .submissions-table .desktop-only, .submissions-table .desktop-row-actions,
  .submissions-table .submission-char-column, .submissions-table .submission-original-score-column { display: none !important; }
  .submissions-table .mobile-only { display: inline !important; }
  .submissions-table th, .submissions-table td { padding: 10px 2px; font-size: 12px; line-height: 1.4; white-space: normal; }
  .submissions-table th { font-size: 11px; }
  .submissions-table .submission-task-column { width: 14%; padding-left: 3px; }
  .submissions-table .submission-student-column { width: 16%; }
  .submissions-table .submission-status-column { width: 21%; }
  .submissions-table .submission-time-column { width: 14%; }
  .submissions-table .submission-current-score-column { width: 24%; min-width: 0; font-size: 11px; }
  .submissions-table .submission-actions-column { width: 11%; padding-right: 0; }
  .submissions-table .mobile-task-title, .submissions-table .submission-student-column strong {
    display: block !important; white-space: normal; overflow-wrap: anywhere;
  }
  .submissions-table .review-status { padding: 4px 3px; font-size: 10px; white-space: normal; overflow-wrap: anywhere; }
  .submissions-table .score-cell { font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
  .mobile-actions-menu { display: block; position: relative; width: 100%; }
  .mobile-actions-menu > summary { display: grid; place-items: center; width: 100%; height: 44px; list-style: none; font-size: 24px; }
  .mobile-actions-menu > summary::-webkit-details-marker { display: none; }
  .mobile-actions-menu:not([open]) > .action-menu-content { display: none; }
  .mobile-actions-menu[open] > .action-menu-content {
    position: absolute; top: 46px; right: 0; z-index: 20;
    width: 148px; display: grid; gap: 6px; padding: 8px;
    border: 1px solid var(--line); border-radius: 6px; background: #fff;
    box-shadow: 0 8px 24px #0002;
  }
  .mobile-actions-menu .action-menu-content > *, .mobile-actions-menu .table-button { width: 100%; margin: 0; }
  .mobile-actions-menu .table-button { display: flex; justify-content: center; min-height: 44px; }
  .paper-review-record-heading { width: 100%; display: flex; flex-wrap: wrap; gap: 10px; }
  .paper-review-record-heading > div:first-child { flex: 1 0 100%; }
  .paper-review-record-heading > form, .paper-review-record-heading > button { flex: 1 1 90px; }
  .paper-review-record-heading > form button { width: 100%; }
  .paper-review-counts { gap: 4px 10px; font-size: 13px; }
  .paper-review-shell .users-table { display: block; width: 100%; min-width: 0; border: 0; }
  .paper-review-shell .users-table thead { display: block; }
  .paper-review-shell .users-table thead tr { display: flex; justify-content: flex-end; }
  .paper-review-shell .users-table thead th { display: none; }
  .paper-review-shell .users-table thead th:nth-child(5) { display: block; padding: 8px 0; background: transparent; }
  .paper-review-shell .users-table tbody { display: block; }
  .paper-review-shell .users-table tbody tr {
    display: grid; grid-template-columns: minmax(0, 1fr) auto;
    height: auto; max-height: none;
    gap: 6px 10px; padding: 14px 2px; border-bottom: 1px solid var(--line);
  }
  .paper-review-shell .users-table td { display: block; min-width: 0; height: auto; padding: 0; border: 0; white-space: normal; background: transparent; }
  .paper-review-shell .users-table tbody tr:nth-child(even) { background: #fcfbf7; }
  .paper-review-shell .users-table tbody tr:nth-child(even) td { background: transparent; }
  .paper-review-shell .users-table td:first-child { grid-column: 1; grid-row: 1; font-size: 16px; }
  .paper-review-shell .users-table td:nth-child(2) { grid-column: 1 / -1; grid-row: 2; overflow-wrap: anywhere; }
  .paper-review-shell .users-table td:nth-child(3) { grid-column: 2; grid-row: 3; color: var(--muted); font-size: 12px; }
  .paper-review-shell .users-table td:nth-child(4) { grid-column: 1; grid-row: 3; color: var(--muted); font-size: 12px; }
  .paper-review-shell .users-table td:nth-child(5) { grid-column: 2; grid-row: 1; }
  .paper-review-shell .users-table td.row-actions { grid-column: 1 / -1; grid-row: 4; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
  .paper-review-shell .users-table td.row-actions > * { flex: 1 1 auto; }
  .paper-review-shell .users-table td.row-actions form button { width: 100%; }
  .paper-review-shell .users-table td.empty-table { grid-column: 1 / -1; }
  .overview-controls .overview-scope-label, .overview-controls .overview-class-label,
  .overview-controls .overview-filter-button, .overview-controls .overview-refresh { display: grid; min-width: 0; }
  .overview-controls .overview-search-label { grid-column: 1 / -1; width: 100%; }
  .overview-scope-tail { display: none; }
  .overview-legend { flex-wrap: wrap; justify-content: flex-start; gap: 6px 10px; margin: 12px 0; }
  .composition-matrix .matrix-sticky { width: 84px; min-width: 84px; max-width: 84px; }
  .composition-matrix .matrix-student-line { flex-wrap: wrap; gap: 2px; }
  .composition-matrix .matrix-student-name strong { max-width: none; font-size: 12px; }
  .task-hero { flex-direction: row; align-items: center; gap: 8px; }
  .task-hero h1 { font-size: 24px; }
  .task-open-count, .task-score-averages { font-size: 12px; }
  .task-score-averages { flex: 0 0 auto; gap: 6px; align-self: center; }
  .task-score-averages span { gap: 8px; font-size: 12px; }
  .task-score-averages strong { font-size: 12px; }
  .task-card.task-card-compact { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; }
  .task-card-compact .task-card-main { padding: 14px 12px 8px; }
  .task-card-compact .task-card-main h2 { font-size: 19px; line-height: 1.5; white-space: normal; overflow-wrap: anywhere; }
  .task-card-meta { display: flex; flex-wrap: wrap; gap: 4px 8px; overflow: visible; white-space: normal; }
  .task-mobile-status { display: contents; }
  .task-card-compact .task-type-marker, .task-card-compact .task-days-left,
  .task-mobile-status .task-state, .task-mobile-status .task-score-line { font-size: 11px; line-height: 1.6; }
  .task-card-status { display: none; }
  .task-card-compact .task-card-action { justify-content: flex-end; min-height: 0; padding: 0 12px 12px; border: 0; }
  .task-card-compact .task-card-action .primary-button { min-height: 44px; }
  .writing-heading { flex-direction: column; }
  .writing-panel, .task-requirement-panel { padding: 12px; }
  .writing-panel textarea { min-height: 260px; font-size: 17px; line-height: 1.8; }
  .writing-actions { flex-direction: column; align-items: stretch; gap: 12px; }
  .writing-actions > div { display: flex; flex-wrap: wrap; gap: 8px; }
  .writing-actions > div > * { flex: 1 1 auto; }
  .composition-summary-table-wrap { width: 100%; justify-content: flex-start; overflow-x: auto; }
  .composition-summary-table { min-width: 520px; flex-shrink: 0; }
  .expression-grid, .result-list, .lookup-limit-grid { grid-template-columns: minmax(0, 1fr); }
  .expression-field { min-height: 48px; }
  .submit-row { flex-direction: column; align-items: stretch; }
  .paper-record-navigation { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; gap: 8px; }
  .paper-record-navigation .secondary-button { width: 100%; min-width: 0; }
  .paper-review-heading-side { width: 100%; align-items: stretch; }
  .paper-review-editor { display: flex; flex-direction: column; gap: 12px; }
  .paper-review-tools {
    position: static; display: grid; width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; padding: 10px;
  }
  .paper-review-tools > .paper-tool-group:first-child { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
  .paper-tool-button { min-height: 52px; }
  .paper-tool-button b { display: block; font-size: 11px; }
  .paper-tool-button svg { width: 20px; height: 20px; }
  .paper-auto-comment-settings, .paper-color-controls, .paper-highlight-controls,
  .paper-stroke-control, .paper-save-status { grid-column: 1 / -1; }
  .paper-comment-distance-control { min-height: 44px; }
  .paper-comment-color-control { grid-template-columns: 64px 36px minmax(0, 1fr); min-height: 48px; }
  .paper-stroke-control { display: grid; flex: 1 0 100%; }
  .paper-color-controls:not([hidden]) { display: flex !important; flex-wrap: wrap; }
  .paper-color-swatch { width: 36px; height: 36px; }
  .paper-history-controls { display: flex; gap: 6px; }
  .paper-history-controls .paper-icon-button, .paper-page-controls .paper-icon-button { min-width: 36px; min-height: 44px; }
  .paper-deskew-button { min-width: 0; }
  .paper-save-draft { display: flex; justify-content: center; grid-column: 2; }
  .paper-save-status { display: block; }
  .mobile-tools-toggle { display: flex; justify-content: center; align-items: center; gap: 6px; }
  .paper-review-tools.mobile-tools-collapsed > .paper-auto-comment-settings,
  .paper-review-tools.mobile-tools-collapsed > .paper-color-controls,
  .paper-review-tools.mobile-tools-collapsed > .paper-highlight-controls { display: none !important; }
  .paper-canvas-stage { width: 100%; min-width: 0; min-height: 0; padding: 4px; }
  .paper-review-finalize { position: static; display: block; width: 100%; padding: 0; }
  .paper-finalize-heading { flex-wrap: wrap; padding: 14px; }
  .paper-finalize-heading h2 { font-size: 23px; }
  .paper-ai-scores { flex-wrap: wrap; }
  .paper-final-section, .paper-score-field, .paper-note-field { margin: 14px; }
  .paper-presentation-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .paper-presentation-options label > span { gap: 6px; padding: 8px; }
  .paper-presentation-options strong { font-size: 14px; }
  .paper-review-finalize > .primary-button { width: calc(100% - 28px); margin: 0 14px 14px; }
  .paper-association-dialog { width: calc(100% - 24px); max-height: calc(100dvh - 24px); padding: 16px; overflow-y: auto; }
  .paper-association-dialog h2 { font-size: 23px; }
  .paper-student-keyboard button { min-height: 36px; }
  .paper-task-options button { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .paper-review-pdf-dialog { width: calc(100% - 24px); max-width: none; max-height: calc(100dvh - 24px); }
  .paper-review-pdf-dialog form { padding: 16px; }
  .paper-review-pdf-range { grid-template-columns: minmax(0, 1fr); }
  .paper-annotated-page { padding: 4px; }
  .paper-student-note { padding: 14px; }
  .login-shell { width: calc(100% - 24px); }
  .login-card { grid-template-columns: minmax(0, 1fr); min-height: 0; }
  .login-intro { display: none; }
  .login-form { padding: 24px 18px; }
}