:root { --ink: var(--text); --muted: var(--text-secondary); --canvas: var(--bg); --line: var(--border); --accent: var(--primary); --accent-soft: var(--primary-soft); --danger: var(--danger-text); --danger-soft: var(--danger-bg); --yellow-soft: var(--warning-bg); }
* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; background: var(--canvas); color: var(--ink); font-family: var(--font); }
.auth-shell[hidden], #teacher-app[hidden] { display: none !important; }
body.homework-mobile-nav-open { overflow: hidden; }
[data-cloud-view] { scroll-margin-top: 24px; }
[data-cloud-view][hidden] { display: none !important; }
[data-cloud-view].is-loading > :not([data-cloud-loading]) { display: none !important; }
button, input, select { font: inherit; } button { cursor: pointer; }
.shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 48px 0 72px; }
/* Keep the login card centered; after login, let the shared app frame own the
   full viewport so it cannot overflow its former max-width login container. */
main.shell:has(> #teacher-app:not([hidden])) { width: 100%; max-width: none; margin: 0; padding: 0; }
#teacher-app:not([hidden]) { width: 100%; max-width: 100%; margin: 0; }
#teacher-app:not([hidden]) .homework-app-shell { min-height: 100vh; }
.auth-shell { min-height: calc(100vh - 120px); display: grid; place-items: center; }
.auth-card { width: min(460px, 100%); padding: 36px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-card); }
.auth-mark { display: inline-grid; place-items: center; width: 52px; height: 52px; margin-bottom: 22px; }
.auth-mark img { display: block; width: 100%; height: 100%; object-fit: contain; }
.auth-card h1 { margin-bottom: 10px; font-size: clamp(30px, 5vw, 44px); }
.auth-lede { color: var(--muted); line-height: 1.7; }
.login-form { display: grid; gap: 9px; margin-top: 26px; color: var(--ink); font-size: 14px; font-weight: 700; }
.login-form input { width: 100%; margin-bottom: 7px; }
.login-form .button { margin-top: 8px; min-height: 44px; }
.account-area { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 10px; }
/* Cloud account menu uses the authenticated email; Local has no account session. */
.cloud-account-menu { position: relative; flex: 0 0 auto; }
.cloud-account-trigger { display: flex; align-items: center; gap: 10px; padding: 3px 2px 3px 8px; border-radius: var(--radius-sm); list-style: none; cursor: pointer; }
.cloud-account-trigger::-webkit-details-marker { display: none; }
.cloud-account-trigger::marker { content: ""; }
.cloud-account-trigger:hover, .cloud-account-menu[open] .cloud-account-trigger { background: var(--bg); }
.cloud-account-trigger:focus-visible { outline: 3px solid var(--primary-soft); outline-offset: 2px; }
.cloud-account-trigger-copy { min-width: 0; display: grid; gap: 2px; text-align: right; }
.cloud-account-trigger-copy strong { overflow: hidden; max-width: 160px; color: var(--text); font-size: 14px; line-height: 1.2; text-overflow: ellipsis; white-space: nowrap; }
.cloud-account-trigger-copy small { overflow: hidden; max-width: 180px; color: var(--text-secondary); font-size: 12px; line-height: 1.2; text-overflow: ellipsis; white-space: nowrap; }
.cloud-account-avatar { width: 38px; height: 38px; flex: 0 0 38px; display: grid; place-items: center; border-radius: 50%; background: var(--primary); color: #fff; }
.cloud-account-avatar svg { width: 21px; height: 21px; stroke-linecap: round; stroke-linejoin: round; }
.cloud-account-popover { position: absolute; top: calc(100% + 8px); right: 0; z-index: 60; width: min(280px, calc(100vw - 32px)); overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface); box-shadow: 0 12px 32px rgb(30 31 36 / 14%); }
.cloud-account-profile { display: grid; gap: 5px; padding: 16px; }
.cloud-account-profile strong { color: var(--text); font-size: 15px; }
.cloud-account-profile span { overflow-wrap: anywhere; color: var(--text-secondary); font-size: 13px; }
.cloud-account-actions { padding: 6px; border-top: 1px solid var(--border); }
.cloud-account-logout { display: flex; align-items: center; gap: 12px; width: 100%; min-height: 42px; padding: 8px 10px; border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--danger-text); font: inherit; font-size: 14px; text-align: left; }
.cloud-account-logout:hover { background: var(--danger-bg); }
.cloud-account-logout:focus-visible { outline: 3px solid var(--primary-soft); outline-offset: 2px; }
.cloud-account-logout svg { width: 19px; height: 19px; flex: 0 0 19px; stroke-linecap: round; stroke-linejoin: round; }
.masthead, .section-heading, .toolbar, .correction-form, .legend { display: flex; align-items: center; gap: 16px; } .masthead, .section-heading { justify-content: space-between; }
.masthead { margin-bottom: 28px; align-items: flex-start; } .eyebrow { margin: 0 0 8px; color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
h1, h2, p { margin-top: 0; } h1 { margin-bottom: 8px; font-size: clamp(32px, 5vw, 54px); letter-spacing: -.04em; } h2 { margin-bottom: 8px; font-size: 21px; } .lede { margin: 0; color: var(--muted); font-size: 17px; }
.status-card, .workspace-card, .boundary-card { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-card); }
.status-card { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 28px; margin-bottom: 16px; } .status-card p:last-child { margin-bottom: 0; color: var(--muted); line-height: 1.7; }
.status-pill { flex: 0 0 auto; padding: 7px 11px; border-radius: 999px; background: #eef2f6; color: var(--muted); font-size: 13px; font-weight: 700; } .status-pill.is-ok, .inline-status.is-ok { background: var(--accent-soft); color: #115e59; } .status-pill.is-error, .inline-status.is-error { background: var(--danger-soft); color: var(--danger); }
.topbar-title { display: flex; align-items: center; gap: 12px; }
.topbar-title .cloud-page-title-skeleton { display: inline-block; width: 140px; height: 26px; margin: 0; }
.cloud-page-back[hidden] { display: none; }
#grid-status:empty { display: none; }
.workspace-card { margin-top: 16px; padding: 24px 28px; } .section-heading { align-items: flex-start; margin-bottom: 16px; } .toolbar { flex-wrap: wrap; justify-content: flex-end; color: var(--muted); font-size: 14px; }
input, select { min-height: 38px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; padding: 7px 10px; color: var(--ink); } input:focus, select:focus, button:focus-visible { outline: 3px solid var(--primary-soft); outline-offset: 2px; }
.inline-status { display: inline-block; margin: 0 0 14px; padding: 7px 10px; border-radius: 8px; color: var(--muted); font-size: 14px; } .muted { color: var(--muted); font-size: 14px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; } table { width: 100%; border-collapse: collapse; min-width: 720px; } th, td { border-bottom: 1px solid var(--line); padding: 9px 10px; text-align: left; vertical-align: middle; } thead th { background: #f8fafc; color: #475467; font-size: 13px; } tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; } th small { display: block; color: var(--muted); font-weight: 400; }
.student-no { display: inline-grid; place-items: center; width: 30px; height: 26px; margin-right: 7px; border-radius: 7px; background: #e2e8f0; font-size: 12px; }
.cell-button { display: grid; min-width: 120px; gap: 4px; border: 1px solid transparent; border-radius: 9px; padding: 8px; text-align: left; } .cell-button:hover { border-color: var(--accent); } .cell-button strong { font-size: 14px; } .cell-button small { color: var(--muted); font-size: 11px; } .cell-done { background: var(--accent-soft); color: #115e59; } .cell-not-done { background: var(--danger-soft); color: #8b1e16; } .cell-no-hit { background: var(--yellow-soft); color: #854d0e; } .cell-no-data { background: #f1f5f9; color: #64748b; }
.legend { flex-wrap: wrap; margin-top: 12px; color: var(--muted); font-size: 13px; } .dot { display: inline-block; width: 9px; height: 9px; margin-right: 5px; border-radius: 50%; } .dot-done { background: var(--accent); } .dot-not-done { background: var(--danger); } .dot-no-hit { background: #d97706; } .dot-no-data { background: #94a3b8; }
.correction-form { flex-wrap: wrap; color: var(--muted); font-size: 14px; } .check-field { color: var(--ink); } .correction-form input[type="text"] { flex: 1 1 220px; }
.result-tag { display: inline-block; border-radius: 999px; padding: 3px 8px; font-size: 12px; font-weight: 700; } .tag-done { background: var(--accent-soft); color: #115e59; } .tag-muted { background: #eef2f6; color: var(--muted); }
[data-cloud-view="report"] .hw-report-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 480px; margin-top: 18px; }
[data-cloud-view="report"] .hw-report-heading { flex-wrap: wrap; gap: 12px 24px; }
[data-cloud-view="report"] .hw-report-heading h2 { margin-bottom: 4px; }
[data-cloud-view="report"] .hw-report-heading .muted { margin: 0; }
[data-cloud-view="report"] .hw-report-heading .toolbar { gap: 8px; }
[data-cloud-view="report"] .hw-report-heading input[type="date"] { width: 150px; }
[data-cloud-view="report"] .hw-report-period { margin: 0; color: var(--text-secondary); font-size: 13px; }
[data-cloud-view="report"] #report-status:empty { display: none; }
[data-cloud-view="report"] .hw-report-list-heading { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px 20px; margin: 22px 0 10px; }
[data-cloud-view="report"] .hw-report-list-heading[hidden] { display: none; }
[data-cloud-view="report"] .hw-report-list-heading h3 { margin: 0; font-size: 17px; }
[data-cloud-view="report"] .hw-report-visible-count { margin: 4px 0 0; color: var(--text-secondary); font-size: 13px; font-variant-numeric: tabular-nums; }
[data-cloud-view="report"] .hw-report-empty { margin: 20px 0 0; padding: 18px 20px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-soft); color: var(--text-secondary); line-height: 1.6; }
[data-cloud-view="report"] .hw-report-filter { display: inline-flex; align-items: center; gap: 7px; color: var(--text-secondary); font-size: 13px; cursor: pointer; }
[data-cloud-view="report"] .hw-report-filter[hidden] { display: none; }
[data-cloud-view="report"] .hw-report-filter input { width: 16px; height: 16px; min-height: 0; margin: 0; padding: 0; accent-color: var(--primary); }
[data-cloud-view="report"] #report-table th, [data-cloud-view="report"] #report-table td { padding: 12px 14px; }
[data-cloud-view="report"] .hw-report-student-link a { color: var(--primary); text-decoration: none; }
[data-cloud-view="report"] .hw-report-student-link a:hover, [data-cloud-view="report"] .hw-report-student-link a:focus-visible { text-decoration: underline; }
[data-cloud-view="report"] .hw-report-items { max-width: 420px; color: var(--text-secondary); font-size: 13px; line-height: 1.5; }
[data-cloud-view="report"] .hw-report-item-list { display: grid; gap: 4px; margin: 0; padding: 0; list-style: none; }
[data-cloud-view="report"] .hw-report-item-list li { display: flex; flex-wrap: wrap; gap: 2px 8px; }
[data-cloud-view="report"] .hw-report-item-list small { color: var(--text-secondary); font-size: inherit; font-variant-numeric: tabular-nums; }
[data-cloud-view="report"] .hw-report-more { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--text-secondary); font-size: 13px; }
[data-cloud-view="report"] .hw-report-more summary { width: fit-content; cursor: pointer; }
[data-cloud-view="report"] .hw-report-more label { display: inline-block; margin: 14px 8px 0 0; }
[data-cloud-view="report"] .helper { color: var(--muted); font-size: 13px; line-height: 1.6; }
.student-records { margin-top: 20px; } .student-records h3 { margin: 0 0 10px; font-size: 16px; }
.homework-calendar { margin-top: 2px; }
.boundary-card { margin-top: 16px; padding: 24px 28px; } .boundary-card ul { margin: 0; padding-left: 21px; color: var(--muted); line-height: 1.9; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.cloud-review-board .section-heading { padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.cloud-grid-heading { display: flex; align-items: center; gap: 14px; }
.cloud-grid-heading h2 { margin: 0; }
.cloud-date-tools { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
#grid-form { display: none; }
#grid-form.is-open { display: flex; }
@media (max-width: 640px) {
  .hw-cloud-daily-stack > .hw-cloud-daily-date { display: block; }
  .hw-cloud-daily-date .hw-now-mini { display: none; }
  .cloud-review-board { padding: 16px; }
  .cloud-review-board > .section-heading { gap: 12px; }
  .cloud-review-tools { justify-content: flex-start; }
  #cloud-daily-edit > .legend { display: none; }
  #correction-panel { display: none; }
  body.homework-mobile-nav-open .hw-mobile-savebar { visibility: hidden; }
  #quick-homework-open { white-space: nowrap; }
  #grid-direct-date { display: none; }
  #grid-form { display: flex; }
  .cloud-review-board:has(#cloud-daily-edit:not([hidden])) .hw-followup-summary:not(.hw-followup-summary--scope-options) .hw-followup-controls,
  .cloud-review-board:has(#cloud-daily-edit:not([hidden])) .hw-followup-scope-picker,
  .cloud-review-board:has(#cloud-daily-edit:not([hidden])) .hw-followup-bulk-actions { display: none; }
}
@media (max-width: 720px) { .cloud-review-board > .section-heading { flex-direction: column; } .cloud-grid-heading { width: 100%; justify-content: space-between; } }
.hw-cloud-daily-stack { grid-template-columns: 220px minmax(0, 1fr); gap: 16px; }
.hw-cloud-daily-date { position: sticky; top: 88px; display: grid; grid-template-columns: minmax(0, 1fr); align-items: start; gap: 12px; text-align: left; }
.hw-cloud-daily-date .hw-now-mini { margin: 0; padding: 0; border: 0; }
.hw-cloud-daily-date .cloud-review-tools { justify-content: flex-start; }
.hw-cloud-daily-date .cloud-review-tools label[for="class-name"], .hw-cloud-daily-date #class-name { display: none; }
.hw-cloud-daily-date .cloud-date-tools { flex-direction: column; align-items: stretch; }
.cloud-review-board { padding: 16px; }
.cloud-review-board .section-heading { padding-bottom: 8px; margin-bottom: 8px; align-items: center; }
.cloud-review-board .hw-followup-view-switch { margin: 8px 0; }
.cloud-review-board .hw-table-reader-open { min-height: 34px; padding: 5px 12px; }
/* Reserve side-by-side calendar/table layout for wide desktop viewports. */
@media (max-width: 1366px) { .hw-cloud-daily-stack { grid-template-columns: minmax(0, 1fr); } .hw-cloud-daily-date { position: static; grid-template-columns: 220px minmax(0, 1fr); } }
@media (max-width: 640px) { .hw-cloud-daily-date { display: block; } .cloud-review-board > .section-heading { flex-direction: row; } }
.hw-content-main > .cloud-review-board { margin-top: 0; }
.cloud-review-tools { gap: 8px; }
.cloud-review-tools .button { min-height: 34px; padding-inline: 12px; }
#cloud-daily-edit[hidden], #cloud-daily-query[hidden], #correction-panel[hidden] { display: none; }
#cloud-daily-view-switch { scroll-margin-top: 82px; }
@media (min-width: 641px) { #quick-homework-open.cloud-worksheet-create-hidden { display: none; } }

.cloud-create-work .section-heading { gap: 18px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.cloud-create-work #cloud-manual-item-editor { margin: 18px 0; }
.cloud-create-work #create-grid { margin: 18px 0; }
.cloud-create-back { display: inline-flex; text-decoration: none; }
.roster-template-download { display: inline-flex; width: fit-content; margin-bottom: 16px; text-decoration: none; }
.roster-import-context { display: grid; gap: 10px; margin-bottom: 16px; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface-soft); }
.roster-context-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 16px; }
.roster-context-heading span { color: var(--muted); font-size: 13px; }
.roster-context-classes { display: flex; flex-wrap: wrap; gap: 6px; }
.roster-context-classes.is-grid { display: block; }
.roster-context-class { padding: 4px 8px; border-radius: var(--radius-pill); background: var(--accent-soft); color: var(--accent); font-size: 12px; font-weight: 700; }
.roster-import-summary { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 18px 0 10px; padding: 12px 14px; border-radius: var(--radius-sm); background: var(--accent-soft); color: #115e59; }
.roster-import-summary span { font-size: 14px; }
.roster-import-warning { margin: 0; padding: 10px 12px; border-radius: 8px; background: var(--yellow-soft); color: #854d0e; font-size: 14px; line-height: 1.5; }
.roster-import-summary { display: grid; }
.roster-import-complete-meta, .roster-import-actions { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 14px; }
.roster-import-complete-meta { color: var(--muted); font-size: 13px; }
.roster-import-actions .button { text-decoration: none; }
@media (max-width: 760px) { .shell { width: min(100% - 24px, 1180px); padding: 32px 0 52px; } main.shell:has(> #teacher-app:not([hidden])) { width: 100%; padding: 0; } .auth-shell { min-height: calc(100vh - 64px); } .auth-card { padding: 26px 20px; } .account-area { justify-content: flex-end; margin-top: 0; } .cloud-account-trigger-copy { display: none; } .status-pill { display: inline-block; } .toolbar { justify-content: flex-start; margin-top: 15px; } .workspace-card, .boundary-card { padding: 20px 16px; } [data-cloud-view="report"] .hw-report-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@page { size: A4 portrait; margin: 14mm; }
@media print { body { background: #fff; } .homework-app-sidebar, .homework-sidebar-backdrop, .homework-app-header, .page-header, .status-card, .student-toolbar, #student-status, .student-records, #correction-panel { display: none !important; } .homework-app-main, .homework-app-content, .workspace-card { display: block; width: auto; margin: 0; padding: 0; border: 0; box-shadow: none; background: #fff; } [data-cloud-view]:not([data-cloud-view="student"]) { display: none !important; } .hw-student-summary { border: 0; padding: 0; background: #fff; } .hw-student-summary-export { display: none !important; } .hw-student-summary-note { border-top: 1px solid #cbd5e1; padding-top: 12px; } table { min-width: 0; } }