:root {
  color-scheme: light;
  --paper: #f8f6f0;
  --paper-deep: #efeae0;
  --surface: #fffdf8;
  --surface-strong: #ffffff;
  --ink: #171917;
  --muted: #62665f;
  --muted-strong: #474b46;
  --line: #dedbd2;
  --line-strong: #c9c3b6;
  --green: #24524a;
  --green-deep: #183c36;
  --green-soft: #e4eee9;
  --green-pale: #f0f5f2;
  --gold: #795724;
  --gold-soft: #f3eadb;
  --danger: #922f2f;
  --danger-soft: #f9e8e6;
  --warning: #875019;
  --warning-soft: #fff2de;
  --focus: #2d675d;
  --radius-sm: 6px;
  --radius: 9px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(31, 28, 22, 0.05), 0 7px 18px rgba(31, 28, 22, 0.04);
  --shadow: 0 18px 48px rgba(43, 39, 31, 0.09);
  --content-width: 1240px;
  --transition: 160ms ease;
  --bg: var(--paper);
  --text: var(--ink);
  --accent: var(--green);
  --accent-2: var(--green);
  --accent-soft: var(--green-soft);
  --warn: var(--warning);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  display: grid;
  min-height: 100vh;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto 1fr auto;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 8% 0%, rgba(226, 214, 193, 0.32), transparent 27rem),
    var(--paper);
  color: var(--ink);
  font: 15px/1.6 Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  max-width: 100%;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button,
select,
input[type="checkbox"],
input[type="radio"] {
  cursor: pointer;
}

a {
  color: var(--green);
  text-decoration-color: rgba(36, 82, 74, 0.38);
  text-underline-offset: 0.18em;
  transition: color var(--transition), text-decoration-color var(--transition);
}

a:hover {
  color: var(--green-deep);
  text-decoration-color: currentColor;
}

:focus {
  outline: none;
}

:focus-visible {
  outline: 3px solid rgba(45, 103, 93, 0.42);
  outline-offset: 3px;
}

::selection {
  background: #cdded7;
  color: var(--green-deep);
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 10px;
  left: 14px;
  padding: 9px 14px;
  transform: translateY(-180%);
  border-radius: var(--radius-sm);
  background: var(--green-deep);
  color: #fff;
  font-weight: 750;
  text-decoration: none;
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

.back-to-top {
  position: fixed;
  z-index: 30;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  display: inline-grid;
  width: 52px;
  min-height: 52px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--green);
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  box-shadow: 0 10px 28px rgba(24, 60, 54, 0.28);
  font-size: 24px;
  font-weight: 760;
  line-height: 1;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.back-to-top[hidden] {
  display: none;
}

.back-to-top:hover {
  border-color: var(--green-deep);
  background: var(--green-deep);
  box-shadow: 0 13px 32px rgba(24, 60, 54, 0.34);
  transform: translateY(-2px);
}

.back-to-top:active {
  transform: translateY(0);
}

/* Application shell */

.site-header {
  position: relative;
  z-index: 40;
  border-bottom: 1px solid rgba(201, 195, 182, 0.82);
  background: rgba(255, 253, 248, 0.94);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(16px);
}

.topbar {
  width: 100%;
}

.topbar-inner {
  display: flex;
  width: min(var(--content-width), calc(100% - 48px));
  min-height: 74px;
  align-items: center;
  gap: 32px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-decoration: none;
}

.brand:hover {
  color: var(--green);
}

.brand-mark {
  display: grid;
  width: 41px;
  height: 41px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--green);
  border-radius: 50%;
  background: var(--green);
  color: #fffdf8;
  font: 700 24px/1 Georgia, "Times New Roman", serif;
  box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.12);
}

.brand-copy {
  display: grid;
  line-height: 1.12;
}

.brand-name {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-caption {
  margin-top: 4px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.075em;
  text-transform: uppercase;
}

.primary-nav {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 3px;
  margin-left: auto;
}

.nav-link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  padding: 8px 11px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--muted-strong);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

.nav-link:hover {
  border-color: var(--line);
  background: rgba(248, 246, 240, 0.88);
  color: var(--green-deep);
}

.nav-link.active {
  border-color: #c8d8d1;
  background: var(--green-soft);
  color: var(--green-deep);
}

.nav-toggle {
  display: none;
  min-height: 42px;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding: 8px 11px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  font-weight: 700;
}

.nav-toggle-icon {
  display: grid;
  width: 19px;
  gap: 4px;
}

.nav-toggle-icon i {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon i:first-child {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon i:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon i:last-child {
  transform: translateY(-6px) rotate(-45deg);
}

.page-shell {
  width: min(var(--content-width), calc(100% - 48px));
  min-width: 0;
  margin: 0 auto;
  padding: 42px 0 72px;
}

.page-heading {
  position: relative;
  margin-bottom: 27px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.page-heading::after {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 72px;
  height: 2px;
  background: var(--green);
  content: "";
}

.page-eyebrow,
.eyebrow {
  margin: 0 0 6px;
  color: var(--gold);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.page-title {
  max-width: 900px;
  margin: 0;
  font-size: clamp(30px, 4.4vw, 46px);
  font-weight: 720;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.page-content {
  min-width: 0;
}

.page-content::after {
  display: block;
  clear: both;
  content: "";
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(239, 234, 224, 0.52);
  color: var(--muted);
}

.site-footer p {
  width: min(var(--content-width), calc(100% - 48px));
  margin: 0 auto;
  padding: 24px 0;
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.035em;
}

.site-footer span {
  margin-right: 4px;
  color: var(--green);
  font-family: Georgia, serif;
}

/* Typography and shared content */

h1,
h2,
h3,
h4 {
  color: var(--ink);
  text-wrap: balance;
}

h2 {
  margin: 34px 0 13px;
  font-size: 22px;
  font-weight: 740;
  letter-spacing: -0.026em;
  line-height: 1.25;
}

h3 {
  font-size: 18px;
  line-height: 1.35;
}

p {
  overflow-wrap: anywhere;
}

.muted {
  color: var(--muted);
}

pre,
code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

pre {
  max-width: 100%;
  margin: 10px 0 22px;
  overflow: auto;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f4f1e9;
  color: #282b27;
  font-size: 13px;
  line-height: 1.58;
  white-space: pre-wrap;
  word-break: break-word;
}

.notice {
  position: relative;
  margin: 14px 0;
  padding: 13px 16px 13px 43px;
  border: 1px solid #e2cda9;
  border-radius: var(--radius);
  background: var(--warning-soft);
  color: #704315;
}

.notice::before {
  position: absolute;
  top: 13px;
  left: 16px;
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  content: "i";
  font: 800 11px/1 Georgia, serif;
}

details {
  border-radius: var(--radius);
}

summary {
  color: var(--ink);
  cursor: pointer;
}

/* Buttons and forms */

.primary-button,
.primary-download,
.selector-search-submit,
.task-filters button,
.stack-form > button[type="submit"] {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 9px 17px;
  border: 1px solid var(--green);
  border-radius: var(--radius-sm);
  background: var(--green);
  color: #fff;
  box-shadow: 0 5px 13px rgba(36, 82, 74, 0.14);
  font-weight: 750;
  line-height: 1.2;
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.primary-button:hover,
.primary-download:hover,
.selector-search-submit:hover,
.task-filters button:hover,
.stack-form > button[type="submit"]:hover {
  border-color: var(--green-deep);
  background: var(--green-deep);
  color: #fff;
  box-shadow: 0 8px 19px rgba(36, 82, 74, 0.2);
  transform: translateY(-1px);
}

.primary-button:active,
.primary-download:active,
.selector-search-submit:active,
.task-filters button:active {
  transform: translateY(0);
}

.link-button,
.basket-action {
  border: 0;
  background: transparent;
  color: var(--green);
  font-weight: 700;
}

.link-button:hover,
.basket-action:hover:not(:disabled) {
  background: var(--green-soft);
  color: var(--green-deep);
}

input[type="text"],
input[type="search"],
input[type="date"],
select,
textarea {
  min-height: 44px;
  padding: 9px 11px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-strong);
  color: var(--ink);
  box-shadow: inset 0 1px 2px rgba(31, 28, 22, 0.025);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

textarea {
  min-height: 112px;
  resize: vertical;
}

input:hover,
select:hover,
textarea:hover {
  border-color: #a8a296;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--focus);
  outline: none;
  box-shadow: 0 0 0 3px rgba(45, 103, 93, 0.15);
}

input::placeholder,
textarea::placeholder {
  color: #92958f;
}

.stack-form {
  display: grid;
  max-width: 720px;
  gap: 4px;
  margin: 18px 0 28px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.stack-form .form-field {
  margin: 0 0 14px;
}

.form-field label,
.basket-title,
.review-comment,
.reference-answer-form > label {
  display: grid;
  gap: 7px;
  color: var(--muted-strong);
  font-size: 13px;
  font-weight: 740;
}

.form-field label > span {
  display: block;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
}

.stack-form > button[type="submit"] {
  justify-self: start;
  margin-top: 3px;
}

/* Dashboard and data surfaces */

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 27px;
}

.stat-card,
.stats > div {
  position: relative;
  min-height: 124px;
  overflow: hidden;
  padding: 19px 19px 17px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.stat-card::after,
.stats > div::after {
  position: absolute;
  right: -20px;
  bottom: -27px;
  width: 78px;
  height: 78px;
  border: 1px solid rgba(121, 87, 36, 0.12);
  border-radius: 50%;
  content: "";
}

.stats span {
  display: block;
  min-height: 40px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 680;
  letter-spacing: 0.025em;
  line-height: 1.35;
}

.stats strong {
  display: block;
  margin-top: 5px;
  color: var(--green-deep);
  font: 700 clamp(27px, 4vw, 35px)/1.1 Georgia, "Times New Roman", serif;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin: 36px 0 15px;
}

.section-heading h2,
.section-heading p {
  margin: 0;
}

.section-heading > p {
  color: var(--muted);
  font-size: 12px;
}

.dashboard-actions {
  margin: 8px 0 30px;
}

.dashboard-actions .section-heading {
  margin-top: 0;
}

.dashboard-action-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.dashboard-action-card {
  position: relative;
  display: flex;
  min-height: 178px;
  overflow: hidden;
  flex-direction: column;
  padding: 19px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  color: var(--ink);
  text-decoration: none;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.dashboard-action-card:hover {
  border-color: #aebeb6;
  box-shadow: var(--shadow);
  color: var(--green-deep);
  transform: translateY(-2px);
}

.dashboard-action-card > span {
  margin-bottom: auto;
  color: var(--gold);
  font: 700 13px/1 Georgia, serif;
}

.dashboard-action-card strong {
  margin-top: 32px;
  font-size: 17px;
  letter-spacing: -0.02em;
}

.dashboard-action-card small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.dashboard-action-primary {
  border-color: var(--green);
  background: var(--green);
  color: #fff;
}

.dashboard-action-primary:hover {
  border-color: var(--green-deep);
  background: var(--green-deep);
  color: #fff;
}

.dashboard-action-primary > span {
  color: #e3c99a;
}

.dashboard-action-primary small {
  color: #d5e5de;
}

.section-heading-activity {
  margin-top: 38px;
}

.table-shell {
  position: relative;
  width: 100%;
  margin: 12px 0 22px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  scrollbar-color: #aaa397 transparent;
  scrollbar-width: thin;
}

.table-shell:focus-visible {
  outline-offset: 2px;
}

table {
  width: 100%;
  min-width: 680px;
  border: 0;
  border-collapse: collapse;
  background: transparent;
  font-size: 13px;
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

thead th {
  background: #f1eee7;
  color: var(--muted-strong);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.085em;
  text-transform: uppercase;
  white-space: nowrap;
}

tbody tr {
  transition: background var(--transition);
}

tbody tr:hover {
  background: rgba(240, 245, 242, 0.8);
}

tbody tr:last-child th,
tbody tr:last-child td {
  border-bottom: 0;
}

td {
  overflow-wrap: anywhere;
}

.table-shell-kv {
  max-width: 920px;
}

.kv {
  min-width: 0;
  font-size: 14px;
}

.kv th {
  width: 220px;
  background: #f6f3ec;
  color: var(--muted-strong);
  font-size: 12px;
  font-weight: 740;
  letter-spacing: 0;
  text-transform: none;
}

.kv td {
  background: var(--surface);
}

.page-content > p:first-child > a:only-child,
.page-content > p:first-child > a:first-child:last-child {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid var(--green);
  border-radius: var(--radius-sm);
  background: var(--green);
  color: #fff;
  font-weight: 750;
  text-decoration: none;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 9px;
  margin: 22px 0 6px;
  color: var(--muted);
  font-size: 13px;
}

.pagination a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-weight: 700;
  text-decoration: none;
}

/* Task bank */

.view-mode-switch {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-left: auto;
  padding: 6px 12px;
  white-space: nowrap;
  font-size: 12px;
  font-weight: 650;
}

.task-filters {
  display: grid;
  grid-template-columns: repeat(4, minmax(128px, 1fr)) minmax(190px, 1.45fr) auto auto;
  align-items: end;
  gap: 12px;
  margin: 0 0 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.task-filters label {
  display: grid;
  min-width: 0;
  gap: 6px;
  color: var(--muted-strong);
  font-size: 12px;
  font-weight: 740;
}

.task-filters-user {
  grid-template-columns: minmax(130px, 0.7fr) minmax(180px, 1.5fr) auto auto;
}

.task-condition,
.task-description,
.task-source-tools {
  margin-bottom: 24px;
}

.task-detail-preview {
  max-width: 360px;
  margin-inline: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.task-source-tools {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.task-source-tools > summary {
  min-height: 28px;
  cursor: pointer;
  font-weight: 700;
}

.task-source-tools[open] > summary {
  margin-bottom: 16px;
}

.task-source-tools pre {
  max-width: 100%;
  overflow-x: auto;
}

.task-filters select,
.task-filters input {
  width: 100%;
  min-width: 0;
}

.task-filters > a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 8px 5px;
  font-size: 13px;
  font-weight: 700;
}

.task-bank-summary {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin: 25px 0 14px;
}

.task-bank-summary .eyebrow,
.task-bank-summary h2,
.task-bank-summary > p {
  margin: 0;
}

.task-bank-summary h2 {
  font-size: 22px;
}

.task-bank-summary > p {
  color: var(--muted);
  font-size: 12px;
}

.task-bank-summary > p strong {
  color: var(--green-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
}

.task-bank-grid {
  display: grid;
  align-items: start;
  grid-template-columns: repeat(auto-fill, minmax(min(340px, 100%), 1fr));
  gap: 17px;
}

.bank-task-card {
  display: flex;
  min-width: 0;
  overflow: hidden;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.bank-task-card:hover {
  border-color: #b8b1a5;
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.bank-task-card:focus-within {
  border-color: var(--green);
}

.bank-task-status-quarantined {
  border-color: #dfbd89;
  background: #fffaf1;
}

.bank-task-preview.task-preview-button {
  flex: 0 0 auto;
}

.bank-task-card-body {
  display: flex;
  flex-direction: column;
  padding: 16px;
}

.bank-task-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.bank-task-meta > strong {
  color: var(--gold);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bank-task-status {
  display: inline-flex;
  min-height: 25px;
  align-items: center;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green-deep);
  font-size: 10px;
  font-weight: 750;
  white-space: nowrap;
}

.bank-task-status-imported .bank-task-status {
  background: var(--gold-soft);
  color: var(--gold);
}

.bank-task-status-quarantined .bank-task-status {
  background: var(--warning-soft);
  color: var(--warning);
}

.bank-task-topic {
  margin: 12px 0 2px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.bank-task-title {
  min-height: 46px;
  margin: 10px 0 7px;
  overflow-wrap: anywhere;
  font-size: 18px;
  letter-spacing: -0.022em;
  line-height: 1.3;
}

.bank-task-topic + .bank-task-title {
  margin-top: 2px;
}

.bank-task-excerpt {
  display: -webkit-box;
  min-height: 69px;
  margin: 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.bank-task-badges {
  display: flex;
  min-height: 27px;
  flex-wrap: wrap;
  gap: 6px;
  margin: 13px 0;
}

.bank-task-badge {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #f5f2eb;
  color: var(--muted-strong);
  font-size: 10px;
  font-weight: 680;
}

.bank-task-open {
  display: inline-flex;
  width: 100%;
  min-height: 42px;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding: 8px 11px;
  border: 1px solid #c4d5cd;
  border-radius: var(--radius-sm);
  background: var(--green-pale);
  color: var(--green-deep);
  font-size: 12px;
  font-weight: 750;
  text-decoration: none;
}

.bank-task-open::after {
  content: "→";
  font-size: 15px;
}

.bank-task-open:hover {
  border-color: var(--green);
  background: var(--green-soft);
}

.crop-preview {
  max-width: 980px;
  margin: 14px 0 28px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.crop-preview img {
  display: block;
  max-width: 100%;
  max-height: 680px;
  margin: 0 auto;
  border: 1px solid #ece7dc;
  background: #fff;
}

.crop-preview figcaption {
  padding: 9px 2px 1px;
  color: var(--muted);
  font-size: 12px;
}

/* Homework selector */

.homework-intro {
  position: relative;
  max-width: none;
  margin: 0 0 23px;
  overflow: hidden;
  padding: 28px 30px;
  border: 1px solid #b9c8c0;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 92% 10%, rgba(255, 255, 255, 0.14), transparent 13rem),
    linear-gradient(135deg, var(--green-deep), var(--green));
  box-shadow: var(--shadow);
  color: #edf4f0;
}

.homework-intro::after {
  position: absolute;
  right: -54px;
  bottom: -84px;
  width: 230px;
  height: 230px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  content: "";
}

.homework-intro .eyebrow {
  color: #e6cc9e;
}

.homework-intro h2 {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 2px 0 8px;
  color: #fff;
  font-size: clamp(26px, 3.2vw, 38px);
  letter-spacing: -0.04em;
}

.homework-intro-copy,
.homework-intro p:last-child {
  position: relative;
  z-index: 1;
  max-width: 790px;
  margin: 0;
  color: #dbe8e2;
  font-size: 15px;
}

.selector-controls {
  margin-bottom: 18px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 253, 248, 0.88);
  box-shadow: var(--shadow-sm);
}

.selector-controls-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 22px;
}

.selector-group {
  min-width: 0;
  margin: 0;
}

.selector-group-header,
.homework-library-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
}

.selector-group-header h2,
.homework-library-heading h2 {
  margin: 0;
  font-size: 18px;
}

.selector-group-header p,
.homework-library-copy {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
}

.filter-chips {
  display: flex;
  max-width: 100%;
  align-items: center;
  gap: 7px;
  overflow-x: auto;
  padding: 2px 2px 10px;
  scrollbar-color: #8f8779 #ece7dd;
  scrollbar-width: auto;
}

.filter-chips::-webkit-scrollbar {
  height: 16px;
}

.filter-chips::-webkit-scrollbar-track {
  border-radius: 999px;
  background: #ece7dd;
}

.filter-chips::-webkit-scrollbar-thumb {
  min-width: 44px;
  border: 3px solid #ece7dd;
  border-radius: 999px;
  background: #8f8779;
}

.filter-chip {
  display: inline-flex;
  min-height: 38px;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
  padding: 6px 10px 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-strong);
  color: var(--muted-strong);
  font-size: 12px;
  font-weight: 680;
  text-decoration: none;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.filter-chip:hover,
.filter-chip.active {
  border-color: #9eb7ac;
  background: var(--green-soft);
  color: var(--green-deep);
}

.filter-chip-count {
  display: inline-grid;
  min-width: 22px;
  height: 22px;
  padding: 0 5px;
  place-items: center;
  border-radius: 999px;
  background: #eeeae1;
  color: var(--muted);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
}

.filter-chip.active .filter-chip-count {
  background: var(--green);
  color: #fff;
}

.selector-search {
  display: flex;
  align-items: end;
  gap: 10px;
  margin-top: 17px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.selector-search-field {
  display: grid;
  width: min(600px, 100%);
  min-width: 0;
  flex: 1 1 300px;
  gap: 6px;
}

.selector-search-field label,
.selector-obz-field label {
  color: var(--muted-strong);
  font-size: 12px;
  font-weight: 740;
}

.selector-search-field input {
  width: 100%;
}

.selector-obz-field {
  display: grid;
  gap: 6px;
  min-width: 190px;
}

.selector-obz-field select {
  width: 100%;
}

.catalog-obz-note {
  margin: 10px 0 0;
  font-size: 12px;
}

.selector-search-actions {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
}

.selector-search-clear {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 7px 8px;
  font-size: 12px;
  font-weight: 700;
}

.selector-summary {
  margin: 9px 1px 16px;
  color: var(--muted);
  font-size: 13px;
}

.selector-summary-count {
  color: var(--green-deep);
  font-family: Georgia, serif;
  font-size: 17px;
}

.homework-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 334px;
  align-items: start;
  gap: 22px;
}

.homework-library {
  min-width: 0;
}

.homework-library-heading {
  min-height: 51px;
  margin-bottom: 13px;
}

.homework-library-heading .eyebrow {
  margin-bottom: 3px;
}

.task-card-grid {
  display: grid;
  align-items: start;
  grid-template-columns: repeat(auto-fit, minmax(min(380px, 100%), 1fr));
  gap: 15px;
}

.task-card {
  display: flex;
  min-width: 0;
  overflow: hidden;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.task-card:hover {
  border-color: #c2bbaa;
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.task-card.selected {
  border-color: var(--green);
  box-shadow: 0 0 0 2px rgba(36, 82, 74, 0.12), var(--shadow-sm);
}

.task-preview-button {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 0;
  overflow: hidden;
  padding: 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: #fff;
  color: inherit;
  cursor: zoom-in;
  text-align: initial;
  text-decoration: none;
}

.task-preview-button::after {
  display: flex;
  min-height: 32px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  margin-top: auto;
  padding: 6px 10px;
  border-top: 1px solid var(--line);
  background: var(--paper-deep);
  color: var(--green-deep);
  content: "Увеличить";
  font-size: 11px;
  font-weight: 750;
  transition: background var(--transition);
}

.task-preview-button:hover::after,
.task-preview-button:focus-visible::after {
  background: var(--green-pale);
}

/* Cards keep actions in their header; the condition has no reserved height. */
.task-card > .task-preview-button,
.bank-task-card > .task-preview-button {
  border-bottom: 0;
}

.task-card > .task-preview-button::after,
.bank-task-card > .task-preview-button::after {
  display: none;
  content: none;
}

.compact-task-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
}

.compact-task-heading {
  display: flex;
  min-width: 0;
  flex: 1 1 170px;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 3px 8px;
}

.compact-task-heading strong {
  color: var(--gold);
  font-size: 11px;
  white-space: nowrap;
}

.compact-task-heading h3 {
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 14px;
  line-height: 1.3;
}

.compact-task-actions {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.compact-task-actions a {
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px;
  border-radius: var(--radius-sm);
  color: var(--green-deep);
  font-size: 12px;
  font-weight: 730;
  text-decoration: none;
}

.compact-task-actions a:hover,
.compact-task-actions a:focus-visible {
  background: var(--green-pale);
}

.task-preview-button:focus-visible,
.compact-task-actions a:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: -3px;
}

/* v4 PNGs have a fixed physical width. Never fit them to a fixed height:
   short tasks must not grow and long conditions/graphs must not shrink. */
.task-preview,
.review-task-preview img {
  display: block;
  width: 100%;
  max-width: 360px;
  height: auto;
  flex: 0 0 auto;
  margin-inline: auto;
  background: #fff;
}

.task-card-select {
  display: flex;
  width: 100%;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid #cad8d1;
  background: var(--green-pale);
  color: var(--green-deep);
  cursor: pointer;
  font-size: 13px;
  font-weight: 780;
  transition: background var(--transition), color var(--transition);
}

.task-card-select:hover {
  background: #d9e8e1;
}

.task-card-select:focus-within {
  z-index: 2;
  outline: 3px solid rgba(45, 103, 93, 0.4);
  outline-offset: -3px;
}

.task-card-select input {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--green);
}

.task-card-select-active {
  display: none;
}

.task-card-select input:checked ~ .task-card-select-idle {
  display: none;
}

.task-card-select input:checked ~ .task-card-select-active {
  display: inline;
}

.task-card.selected .task-card-select {
  background: var(--green);
  color: #fff;
}

.task-card.selected .task-card-select input {
  accent-color: #fff;
}

.homework-basket {
  position: sticky;
  top: 16px;
  max-height: calc(100vh - 32px);
  overflow: auto;
  padding: 20px;
  border: 1px solid #b8c9c1;
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
  scrollbar-color: #aaa397 transparent;
  scrollbar-width: thin;
}

.homework-basket-form {
  display: grid;
}

.basket-kicker {
  margin-bottom: 12px;
}

.basket-title input,
.basket-title select {
  width: 100%;
}

.homework-pdf-options {
  display: grid;
  gap: 8px;
  min-width: 0;
  margin: 16px 0 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.homework-pdf-options legend {
  padding: 0 4px;
  font-weight: 700;
}

.homework-pdf-option {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  min-height: 44px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
}

.homework-pdf-option:has(input:checked) {
  border-color: var(--green);
  background: var(--green-soft);
}

.homework-pdf-option input {
  flex: 0 0 auto;
  margin-top: 3px;
}

.homework-pdf-description {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.45;
}

.basket-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
}

.basket-heading h2 {
  margin: 0;
  font-size: 17px;
}

.basket-count,
.basket-heading strong {
  display: inline-grid;
  min-width: 30px;
  height: 30px;
  padding: 0 7px;
  place-items: center;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green-deep);
  font: 700 14px/1 Georgia, serif;
}

.basket-empty {
  margin: 10px 0 4px;
  font-size: 12px;
  line-height: 1.5;
}

.basket-list {
  display: grid;
  max-height: min(35vh, 310px);
  gap: 7px;
  margin: 12px -2px;
  overflow-y: auto;
  padding: 2px;
  list-style: none;
  scrollbar-color: #aaa397 transparent;
  scrollbar-width: thin;
}

.basket-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 8px 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #f7f4ed;
}

.basket-item-copy {
  display: grid;
  min-width: 0;
}

.basket-item-copy strong,
.basket-item-copy span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.basket-item-copy strong {
  font-size: 11px;
}

.basket-item-copy span {
  color: var(--muted);
  font-size: 10px;
}

.basket-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 2px;
}

.basket-action {
  display: grid;
  width: 28px;
  height: 28px;
  padding: 0;
  place-items: center;
  border-radius: 4px;
}

.basket-action:disabled {
  color: #aaa9a4;
  cursor: default;
  opacity: 0.52;
}

.basket-error {
  min-height: 20px;
  margin: 2px 0 6px;
  color: var(--danger);
  font-size: 12px;
}

.basket-submit-actions {
  display: grid;
  gap: 7px;
}

.homework-basket .primary-button {
  width: 100%;
}

.homework-basket .link-button {
  min-height: 38px;
  border-radius: var(--radius-sm);
}

.legacy-homework-mode {
  margin: 34px 0 0;
  padding: 15px 18px;
  border: 1px solid var(--line);
  background: rgba(255, 253, 248, 0.72);
}

.legacy-homework-mode summary {
  font-weight: 740;
}

.legacy-homework-mode[open] summary {
  margin-bottom: 9px;
}

/* Preview dialog */

.task-preview-dialog {
  width: min(760px, calc(100vw - 32px));
  max-width: none;
  max-height: calc(100vh - 32px);
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 28px 90px rgba(17, 25, 22, 0.34);
}

.task-preview-dialog::backdrop {
  background: rgba(15, 25, 22, 0.76);
  backdrop-filter: blur(4px);
}

.task-preview-dialog-shell {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  max-height: calc(100vh - 34px);
}

.task-preview-dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
}

.task-preview-dialog-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.task-preview-dialog-actions button {
  min-height: 38px;
  padding: 7px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-weight: 700;
}

.task-preview-dialog-canvas {
  display: block;
  min-height: 0;
  overflow: auto;
  padding: 18px;
  background: #e9e5dc;
}

.task-preview-dialog-canvas img {
  display: block;
  width: 100%;
  max-width: 720px;
  height: auto;
  margin-inline: auto;
  background: #fff;
  box-shadow: 0 3px 18px rgba(31, 28, 22, 0.16);
}

.task-preview-dialog-canvas.is-zoomed img {
  width: 150%;
  max-width: none;
  margin-inline: 0;
}

/* Manual review and reference answers */

.review-status {
  display: inline-flex;
  min-height: 29px;
  align-items: center;
  padding: 4px 9px;
  border-radius: 999px;
  background: #eceae4;
  color: var(--muted-strong);
  font-size: 11px;
  font-weight: 750;
  white-space: nowrap;
}

.review-status-pending {
  background: var(--warning-soft);
  color: var(--warning);
}

.review-status-correct,
.review-status-done {
  background: var(--green-soft);
  color: var(--green-deep);
}

.review-status-incorrect {
  background: var(--danger-soft);
  color: var(--danger);
}

.manual-review-list {
  display: grid;
  gap: 18px;
}

.manual-review-card,
.reference-answer-panel {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.manual-review-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 17px;
  border-bottom: 1px solid var(--line);
  background: #f5f2eb;
}

.manual-review-card-header h3 {
  margin: 0;
  font-size: 17px;
}

.manual-review-card-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
}

.manual-review-task,
.manual-review-decision {
  min-width: 0;
  padding: 18px;
}

.manual-review-decision {
  border-left: 1px solid var(--line);
  background: #f7f4ed;
}

.manual-review-decision h4 {
  margin: 0 0 7px;
}

.manual-review-decision h4:not(:first-child) {
  margin-top: 18px;
}

.review-task-preview {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.manual-review-task details {
  margin-top: 12px;
}

.manual-review-task summary {
  color: var(--green);
  font-weight: 700;
}

.manual-review-task pre,
.review-answer,
.answer-tex-current,
.reference-answer-preview pre {
  max-width: 100%;
  overflow: auto;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  white-space: pre-wrap;
  word-break: break-word;
}

.review-answer-missing {
  padding: 12px;
  border: 1px dashed #c99550;
  border-radius: var(--radius-sm);
  background: var(--warning-soft);
}

.manual-review-decision form,
.reference-answer-form {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.manual-review-decision fieldset {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  border: 0;
}

.manual-review-decision legend,
.reference-answer-form > label {
  margin-bottom: 7px;
  font-weight: 740;
}

.review-radio {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  gap: 7px;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
}

.review-radio:has(input:checked) {
  border-color: var(--green);
  background: var(--green-soft);
  color: var(--green-deep);
}

.review-comment textarea,
.reference-answer-form textarea {
  width: 100%;
  font: 13px/1.5 "SFMono-Regular", Consolas, monospace;
  font-weight: 400;
}

.manual-review-decision .primary-button,
.reference-answer-form .primary-button {
  justify-self: start;
}

.reference-answer-panel {
  margin-top: 25px;
  padding: 19px;
}

.reference-answer-panel h2 {
  margin-top: 0;
}

.reference-answer-preview strong {
  display: block;
  margin-bottom: 6px;
}

.reference-answer-preview pre:empty::before {
  color: var(--muted);
  content: "Здесь появится TeX-код ответа";
}

.reference-answer-image,
.review-reference-image {
  max-width: 100%;
}

.reference-answer-image img,
.review-reference-image {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

/* Authentication and account workspace controls */

body.auth-page {
  position: relative;
  display: grid;
  min-height: 100vh;
  min-height: 100dvh;
  grid-template-rows: minmax(0, 1fr);
  place-items: center;
  overflow-x: hidden;
  padding: clamp(24px, 5vw, 72px) 20px;
  background:
    radial-gradient(circle at 12% 14%, rgba(227, 202, 158, 0.34), transparent 25rem),
    radial-gradient(circle at 88% 84%, rgba(36, 82, 74, 0.16), transparent 29rem),
    linear-gradient(145deg, #f9f6ef 0%, #f0ece3 100%);
}

.auth-page::before,
.auth-page::after {
  position: fixed;
  z-index: 0;
  border: 1px solid rgba(121, 87, 36, 0.13);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.auth-page::before {
  top: -13rem;
  left: -12rem;
  width: 32rem;
  height: 32rem;
}

.auth-page::after {
  right: -9rem;
  bottom: -12rem;
  width: 27rem;
  height: 27rem;
  box-shadow: 0 0 0 4rem rgba(255, 253, 248, 0.22);
}

.auth-shell {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(100%, 620px);
  gap: 24px;
}

.auth-shell > .brand {
  justify-self: center;
  padding: 5px 10px;
}

.auth-shell > .brand .brand-mark {
  width: 46px;
  height: 46px;
  font-size: 27px;
  box-shadow:
    inset 0 0 0 3px rgba(255, 255, 255, 0.12),
    0 10px 24px rgba(24, 60, 54, 0.2);
}

.auth-shell > .brand .brand-name {
  font-size: 20px;
  letter-spacing: -0.025em;
}

.auth-card {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 6vw, 48px);
  border: 1px solid rgba(201, 195, 182, 0.92);
  border-radius: 18px;
  background: rgba(255, 253, 248, 0.96);
  box-shadow:
    0 2px 4px rgba(43, 39, 31, 0.04),
    0 26px 70px rgba(43, 39, 31, 0.12);
  backdrop-filter: blur(16px);
}

.auth-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--green-deep), var(--green), #9a7132);
  content: "";
}

.auth-card h1 {
  margin: 0;
  color: var(--green-deep);
  font-size: clamp(30px, 6vw, 42px);
  font-weight: 730;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.auth-lead {
  max-width: 48ch;
  margin: 12px 0 25px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.auth-form.stack-form {
  max-width: none;
  gap: 1px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.auth-form .form-field {
  margin-bottom: 17px;
}

.auth-form .form-field label {
  gap: 8px;
  color: var(--muted-strong);
  font-size: 13px;
  font-weight: 760;
}

.auth-form input[type="email"],
.auth-form input[type="password"],
.auth-form input[type="text"] {
  width: 100%;
  min-height: 50px;
  padding: 11px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: inset 0 1px 2px rgba(31, 28, 22, 0.035);
  font-size: 16px;
}

.auth-form input[type="email"]:hover,
.auth-form input[type="password"]:hover,
.auth-form input[type="text"]:hover {
  border-color: #a8a296;
}

.auth-form input[type="email"]:focus,
.auth-form input[type="password"]:focus,
.auth-form input[type="text"]:focus {
  border-color: var(--focus);
  box-shadow: 0 0 0 4px rgba(45, 103, 93, 0.14);
}

.auth-form > .primary-button,
.auth-form.stack-form > button[type="submit"] {
  width: 100%;
  min-height: 50px;
  justify-self: stretch;
  margin-top: 5px;
  border-radius: 8px;
  font-size: 15px;
}

.auth-secondary {
  margin: 25px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.auth-secondary a {
  font-weight: 740;
}

.auth-card > .notice {
  margin: 0 0 21px;
}

.invitation-result {
  margin: 0 0 25px;
  padding: 20px;
  border: 1px solid #b9cec5;
  border-radius: var(--radius-lg);
  background: var(--green-pale);
  box-shadow: var(--shadow-sm);
}

.invitation-result h2 {
  margin: 0 0 12px;
  color: var(--green-deep);
  font-size: 20px;
}

.invitation-result > p {
  margin: 10px 0 0;
}

.invitation-code {
  display: block;
  width: 100%;
  overflow-wrap: anywhere;
  padding: 13px 14px;
  border: 1px solid #b4c8bf;
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--green-deep);
  font-size: clamp(13px, 3vw, 16px);
  font-weight: 760;
  letter-spacing: 0.025em;
  line-height: 1.55;
  user-select: all;
}

.invitation-result .notice {
  margin-top: 15px;
  background: rgba(255, 242, 222, 0.72);
}

.account-workspace-controls {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding-left: 15px;
  border-left: 1px solid var(--line);
}

.accountbar {
  border-top: 1px solid rgba(222, 219, 210, 0.78);
  background: rgba(248, 246, 240, 0.72);
}

.accountbar-inner {
  display: flex;
  width: min(var(--content-width), calc(100% - 48px));
  min-height: 48px;
  align-items: center;
  margin: 0 auto;
  padding: 6px 0;
}

.account-workspace-identity {
  display: grid;
  min-width: 120px;
  max-width: 210px;
  gap: 1px;
  line-height: 1.25;
}

.account-workspace-identity strong,
.account-workspace-identity span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.account-workspace-identity strong {
  font-size: 13px;
  font-weight: 780;
}

.account-workspace-identity span {
  color: var(--muted);
  font-size: 11px;
}

.workspace-switch {
  display: flex;
  min-width: 0;
  align-items: end;
  gap: 6px;
  margin: 0;
}

.workspace-switch label {
  display: grid;
  min-width: 0;
  gap: 2px;
}

.workspace-switch label > span {
  color: var(--muted);
  font-size: 9px;
  font-weight: 760;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.workspace-switch select {
  width: min(190px, 24vw);
  min-height: 36px;
  padding: 6px 28px 6px 9px;
  font-size: 12px;
}

.workspace-switch button,
.logout-form button,
.admin-mode-link {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--muted-strong);
  font-size: 11px;
  font-weight: 730;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.workspace-switch button:hover,
.logout-form button:hover,
.admin-mode-link:hover {
  border-color: #aebeb6;
  background: var(--green-soft);
  color: var(--green-deep);
}

.admin-mode-link {
  border-color: #d6c5a7;
  background: var(--gold-soft);
  color: #66491f;
}

.logout-form {
  display: contents;
  margin: 0;
}

.logout-form button:hover {
  border-color: #d7b5b1;
  background: var(--danger-soft);
  color: var(--danger);
}

/* Responsive */

@media (max-width: 1120px) {
  .topbar-inner,
  .accountbar-inner,
  .page-shell,
  .site-footer p {
    width: min(calc(100% - 36px), var(--content-width));
  }

  .task-filters {
    grid-template-columns: repeat(3, minmax(140px, 1fr));
  }

  .task-filters > a {
    justify-content: center;
  }

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

@media (max-width: 920px) {
  .topbar-inner {
    min-height: 68px;
    flex-wrap: wrap;
    gap: 10px 20px;
    padding: 9px 0;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .primary-nav {
    display: grid;
    width: 100%;
    flex: 1 0 100%;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 5px;
    order: 3;
    margin: 0;
    padding: 4px 0 8px;
  }

  .nav-ready .primary-nav:not(.is-open) {
    display: none;
  }

  .nav-link {
    justify-content: center;
  }

  .account-workspace-controls {
    flex-wrap: wrap;
  }

  .account-workspace-identity {
    max-width: min(270px, 42vw);
    flex: 1 1 150px;
  }

  .homework-workspace {
    display: flex;
    flex-direction: column;
  }

  .homework-basket {
    position: static;
    width: 100%;
    max-height: none;
    order: -1;
  }

  .basket-list {
    max-height: 240px;
  }
}

@media (max-width: 760px) {
  body {
    font-size: 14px;
  }

  .topbar-inner,
  .accountbar-inner,
  .page-shell,
  .site-footer p {
    width: min(calc(100% - 28px), var(--content-width));
  }

  .brand-caption {
    display: none;
  }

  .page-shell {
    padding: 28px 0 52px;
  }

  .page-heading {
    margin-bottom: 21px;
    padding-bottom: 17px;
  }

  .page-title {
    font-size: clamp(28px, 9vw, 38px);
  }

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

  .stat-card,
  .stats > div {
    min-height: 110px;
    padding: 15px;
  }

  .task-filters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 15px;
  }

  .task-filters label:last-of-type {
    grid-column: 1 / -1;
  }

  .selector-controls-grid {
    grid-template-columns: 1fr;
  }

  .selector-search {
    align-items: stretch;
    flex-direction: column;
  }

  .selector-search-field {
    width: 100%;
    flex-basis: auto;
  }

  .selector-search-actions {
    justify-content: flex-start;
  }

  .homework-intro {
    padding: 23px 20px;
  }

  .homework-intro-copy {
    font-size: 14px;
  }

  .manual-review-card-grid {
    grid-template-columns: 1fr;
  }

  .manual-review-decision {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .manual-review-card-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .stack-form {
    padding: 18px;
  }

  .auth-page {
    padding: 24px 14px;
  }

  .auth-shell {
    gap: 18px;
  }

  .auth-card {
    border-radius: var(--radius-lg);
  }

  .account-workspace-controls {
    width: 100%;
    margin-left: 0;
    padding: 10px 0 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .workspace-switch {
    width: 100%;
    flex: 1 0 100%;
    order: 3;
  }

  .workspace-switch label {
    flex: 1 1 auto;
  }

  .workspace-switch select {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .brand-mark {
    width: 37px;
    height: 37px;
    font-size: 21px;
  }

  .nav-toggle-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
  }

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

  .stats {
    grid-template-columns: 1fr 1fr;
    gap: 9px;
  }

  .stats span {
    min-height: 34px;
    font-size: 10px;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .dashboard-action-grid {
    grid-template-columns: 1fr;
  }

  .dashboard-action-card {
    min-height: 140px;
  }

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

  .task-filters label:last-of-type {
    grid-column: auto;
  }

  .task-filters button,
  .task-filters > a {
    width: 100%;
  }

  .task-bank-summary {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }

  .table-shell-kv {
    border: 0;
    box-shadow: none;
  }

  .table-shell-kv .kv,
  .table-shell-kv .kv tbody,
  .table-shell-kv .kv tr,
  .table-shell-kv .kv th,
  .table-shell-kv .kv td {
    display: block;
    width: 100%;
  }

  .table-shell-kv .kv tr {
    margin-bottom: 8px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
  }

  .table-shell-kv .kv th,
  .table-shell-kv .kv td {
    border-bottom: 0;
  }

  .table-shell-kv .kv th {
    padding-bottom: 6px;
  }

  .table-shell-kv .kv td {
    padding-top: 6px;
  }

  .selector-controls {
    margin-right: -4px;
    margin-left: -4px;
    padding: 16px 13px;
  }

  .selector-group-header,
  .homework-library-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }

  .task-card-grid {
    grid-template-columns: 1fr;
  }

  .homework-basket {
    padding: 16px;
  }

  .task-preview-dialog {
    width: calc(100vw - 18px);
    max-height: calc(100vh - 18px);
  }

  .task-preview-dialog-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .task-preview-dialog-actions {
    width: 100%;
    justify-content: space-between;
  }

  .task-preview-dialog-canvas {
    padding: 4px;
  }

  .auth-page {
    place-items: start center;
  }

  .auth-shell > .brand .brand-mark {
    width: 41px;
    height: 41px;
    font-size: 24px;
  }

  .auth-card {
    padding: 25px 20px 28px;
  }

  .auth-card h1 {
    font-size: clamp(29px, 9vw, 36px);
  }

  .auth-lead {
    margin-bottom: 22px;
    font-size: 14px;
  }

  .invitation-result {
    margin-right: -4px;
    margin-left: -4px;
    padding: 16px;
  }

  .account-workspace-identity {
    max-width: none;
    flex-basis: 100%;
  }

  .admin-mode-link,
  .logout-form button {
    flex: 1 1 0;
  }

  .workspace-switch {
    align-items: stretch;
    flex-direction: column;
  }

  .workspace-switch button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}
/* Personal task editing stays secondary to the readable condition. */
.task-editor, .task-difficulty-hint { margin: 1rem 0; }
.task-editor summary, .task-difficulty-hint summary, .task-editor-reset summary { cursor: pointer; padding: .7rem 0; }
.task-editor summary { font-weight: 650; }
.task-editor-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin: 1rem 0; }
.task-editor-fields label { display: flex; flex-direction: column; gap: .45rem; min-width: 0; }
.task-editor-fields input, .task-editor-fields select, .task-tex-form textarea { width: 100%; box-sizing: border-box; min-width: 0; }
.task-editor-fields input, .task-editor-fields select { min-height: 44px; padding: .65rem .8rem; }
.task-preview-button.task-detail-preview { min-height: 0; }
.task-editor-fields small { color: var(--muted, #58646c); }
.task-tex-form textarea { display: block; font-family: monospace; line-height: 1.5; }
.task-edition-apply { margin: 1.5rem 0; }
.task-edition-confirm { display: flex; align-items: flex-start; gap: .75rem; padding: 1rem 0; }
.task-edition-confirm input { width: 1.3rem; height: 1.3rem; flex: 0 0 auto; margin-top: .15rem; }
.task-edition-apply .primary-button, .task-metadata-form .primary-button, .task-tex-form .primary-button { min-height: 44px; white-space: normal; }
@media (max-width: 640px) {
  .task-editor-fields { grid-template-columns: 1fr; }
  .task-edition-apply .primary-button, .task-metadata-form .primary-button, .task-tex-form .primary-button { width: 100%; }
}
.workflow-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 18px 0; }
.workflow-actions a, .workflow-actions button { min-height: 44px; padding: 12px 18px; }
.secondary-button { border: 1px solid currentColor; border-radius: 12px; text-decoration: none; }
.homework-basket-form button[formaction] { min-height: 44px; white-space: normal; }
.student-picker { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(230px, 100%), 1fr)); gap: 8px; margin: 18px 0; }
.student-picker label { display: flex; gap: 12px; align-items: center; min-height: 48px; padding: 8px 12px; border: 1px solid #dce3d8; border-radius: 12px; cursor: pointer; }
.student-picker input { flex: 0 0 22px; width: 22px; height: 22px; min-height: 22px; }
.repeat-confirmation { padding: 20px; border: 2px solid #9b7628; border-radius: 16px; background: #fff8df; }
.answer-entry-list { display: grid; gap: 20px; }
.answer-draft-panel { margin: 16px 0; padding: 12px 16px; border: 1px solid #dce3d8; border-radius: 12px; background: #f7faf5; overflow-wrap: anywhere; }
.answer-draft-panel p { margin: 0; }
.answer-draft-panel button, .answer-draft-panel a { margin-top: 10px; min-height: 44px; white-space: normal; }
[data-draft-status][data-state="saved"] { color: #24652d; }
[data-draft-status][data-state="error"], [data-draft-status][data-state="conflict"] { color: #9d2525; font-weight: 600; }
.answer-entry-card { display: grid; grid-template-columns: minmax(0, 1fr) minmax(230px, 0.9fr); gap: 28px; padding: 24px; border: 1px solid #dce3d8; background: #fff; border-radius: 18px; }
.answer-entry-control { align-self: center; min-width: 0; }
.answer-entry-control label { display: block; font-weight: 600; margin-bottom: 8px; }
.answer-entry-control input, .answer-entry-control textarea { width: 100%; min-height: 48px; }
.answer-feedback { min-height: 1.5em; font-weight: 600; }
.answer-feedback[data-status="correct"] { color: #24652d; }
.answer-feedback[data-status="incorrect"] { color: #a52626; }
.answer-feedback[data-status="uncheckable"] { color: #775a17; }
@media (max-width: 700px) { .answer-entry-card { grid-template-columns: minmax(0, 1fr); padding: 16px; gap: 16px; } }
.teacher-statistics .data-table { min-width: 680px; }
.teacher-statistics .data-table th:first-child, .teacher-statistics .data-table td:first-child { min-width: 150px; }
.table-scroll-hint { display: none; }
.answer-entry-control fieldset { border: 1px solid #dce3d8; border-radius: 12px; padding: 12px; }
@media (max-width: 700px) { .table-scroll-hint { display: block; } }