:root {
  --aq-ink: #18201d;
  --aq-muted: #64706b;
  --aq-line: #d9e2de;
  --aq-canvas: #f6f8f7;
  --aq-panel: #fbfcfb;
  --aq-accent: #2f7668;
  --aq-accent-dark: #245e53;
  --aq-danger: #a33a33;
  --aq-shadow: 0 18px 50px rgb(34 59 51 / 10%);
  --aq-shadow-tight: 0 8px 24px rgb(34 59 51 / 8%);
}

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

body {
  min-height: 100dvh;
  margin: 0;
  background: var(--aq-canvas);
  color: var(--aq-ink);
  font-family: Geist, Aptos, "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

label {
  display: grid;
  gap: .5rem;
  color: var(--aq-ink);
  font-size: .875rem;
  font-weight: 650;
}

input,
select,
textarea {
  width: 100%;
  min-height: 2.75rem;
  border: 1px solid var(--aq-line);
  border-radius: .75rem;
  padding: .5rem .75rem;
  background: #fdfefe;
  color: var(--aq-ink);
  font: inherit;
  font-size: .875rem;
  outline: none;
  box-shadow: 0 1px 2px rgb(24 32 29 / 4%);
  transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
}

textarea {
  min-height: 7rem;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--aq-accent);
  box-shadow: 0 0 0 4px rgb(47 118 104 / 15%);
}

button:disabled {
  cursor: not-allowed;
  opacity: .5;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 40;
  display: flex;
  width: 18rem;
  flex-direction: column;
  overflow-y: auto;
  border-right: 1px solid var(--aq-line);
  background: rgb(253 254 254 / 98%);
  padding: 1rem;
  box-shadow: var(--aq-shadow-tight);
  backdrop-filter: blur(18px);
}

.sidebar-overlay {
  display: none;
}

.mobile-topbar {
  display: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  border-radius: 1rem;
  padding: .5rem;
  font-size: .875rem;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border-radius: .75rem;
  background: var(--aq-accent);
  color: #f8fffc;
  font-size: .75rem;
  font-weight: 900;
  box-shadow: var(--aq-shadow-tight);
}

.course-select {
  margin-top: 1rem;
  border: 1px solid var(--aq-line);
  border-radius: 1rem;
  background: var(--aq-panel);
  padding: .75rem;
  color: var(--aq-muted);
  font-size: .75rem;
  font-weight: 700;
}

.course-select select {
  margin-top: .5rem;
}

.side-nav {
  display: grid;
  gap: .25rem;
  margin-top: 1.25rem;
}

.side-nav a {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  gap: .75rem;
  border-radius: .75rem;
  padding: 0 .75rem;
  color: var(--aq-muted);
  font-size: .875rem;
  font-weight: 700;
  text-decoration: none;
  transition: background .16s ease, color .16s ease, transform .16s ease;
}

.side-nav-disabled {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  gap: .75rem;
  border-radius: .75rem;
  padding: 0 .75rem;
  color: rgb(100 112 107 / 48%);
  font-size: .875rem;
  font-weight: 700;
  cursor: not-allowed;
}

.nav-section-title {
  margin: .75rem .5rem .25rem;
  color: var(--aq-muted);
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: .68rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.side-nav a:hover {
  background: rgb(47 118 104 / 10%);
  color: var(--aq-ink);
}

.side-nav a.is-active {
  background: var(--aq-accent);
  color: #f8fffc;
  box-shadow: var(--aq-shadow-tight);
}

.nav-token {
  display: grid;
  width: 1.75rem;
  height: 1.75rem;
  flex-shrink: 0;
  place-items: center;
  border: 1px solid currentColor;
  border-color: rgb(100 112 107 / 18%);
  border-radius: .55rem;
  background: rgb(100 112 107 / 7%);
  font-size: .6875rem;
  font-weight: 900;
}

.account {
  display: grid;
  gap: .25rem;
  margin-top: auto;
  border-top: 1px solid var(--aq-line);
  padding-top: 1rem;
  font-size: .875rem;
}

.account span {
  color: var(--aq-muted);
  font-size: .75rem;
}

.account a {
  margin-top: .25rem;
  color: var(--aq-accent);
  font-size: .875rem;
  font-weight: 700;
  text-decoration: none;
}

.main {
  width: calc(100% - 18rem);
  min-width: 0;
  min-height: 100dvh;
  margin-left: 18rem;
  overflow-x: clip;
  padding: 1.5rem 1.75rem;
}

.auth-main,
.course-gate-main {
  display: grid;
  width: 100%;
  margin-left: 0;
  place-items: center;
  padding: 2.5rem 1.5rem;
}

.course-gate-main {
  place-items: stretch;
}

.page-head {
  display: flex;
  min-height: 5rem;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--aq-line);
  padding-bottom: 1.25rem;
}

.page-head p {
  margin: 0;
  color: var(--aq-muted);
  font-size: .875rem;
  font-weight: 650;
}

.page-head h1 {
  margin: 0;
  color: var(--aq-ink);
  font-size: clamp(1.875rem, 4vw, 2.25rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.035em;
}

.flash {
  display: none;
}

.toast-host {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 80;
  display: grid;
  gap: .65rem;
  width: min(24rem, calc(100vw - 2rem));
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: .75rem;
  align-items: start;
  border: 1px solid rgb(47 118 104 / 22%);
  border-radius: .9rem;
  background: #f7fffb;
  color: var(--aq-accent-dark);
  padding: .85rem 1rem;
  box-shadow: 0 16px 40px rgb(34 59 51 / 16%);
  font-size: .875rem;
  font-weight: 700;
  line-height: 1.45;
  transform: translateY(-8px);
  opacity: 0;
  transition: opacity .22s ease, transform .22s ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.toast.is-leaving {
  opacity: 0;
  transform: translateY(-6px);
}

.toast.is-error {
  border-color: rgb(163 58 51 / 28%);
  background: #fff7f6;
  color: #8f2f2a;
}

.toast.is-warning {
  border-color: rgb(163 120 51 / 28%);
  background: #fffaf2;
  color: #8a5a1a;
}

.toast-close {
  display: inline-grid;
  width: 1.75rem;
  height: 1.75rem;
  place-items: center;
  border: 0;
  border-radius: .55rem;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  opacity: .7;
}

.toast-close:hover {
  opacity: 1;
  background: rgb(24 32 29 / 6%);
}

@media (max-width: 980px) {
  .toast-host {
    top: auto;
    bottom: 1rem;
    right: 50%;
    transform: translateX(50%);
  }
}

.dashboard-grid,
.content-split {
  display: grid;
  gap: 1.25rem;
}

.stack,
.form-card,
.rows,
.assignment-list {
  display: grid;
}

.stack {
  gap: 1rem;
}

.panel,
.form-card {
  border: 1px solid var(--aq-line);
  border-radius: 1rem;
  background: #fdfefe;
  padding: 1.25rem;
  box-shadow: var(--aq-shadow);
}

.form-card {
  gap: 1rem;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.panel-head h2,
.form-card h2 {
  margin: 0;
  color: var(--aq-ink);
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -.025em;
}

.panel-head span {
  color: var(--aq-muted);
  font-size: .875rem;
  font-weight: 650;
}

.btn-primary,
.btn-ghost,
.btn-danger,
button {
  display: inline-flex;
  min-height: 2.5rem;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: .75rem;
  padding: 0 1rem;
  font: inherit;
  font-size: .875rem;
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
  transition: transform .16s ease, background .16s ease, border-color .16s ease, color .16s ease;
}

.btn-primary {
  border-color: var(--aq-accent);
  background: var(--aq-accent);
  color: #f8fffc;
}

.btn-primary:hover {
  background: var(--aq-accent-dark);
}

.btn-ghost {
  border-color: var(--aq-line);
  background: #fdfefe;
  color: var(--aq-ink);
}

.btn-ghost:hover {
  border-color: rgb(47 118 104 / 30%);
  background: rgb(47 118 104 / 5%);
}

.btn-danger {
  border-color: var(--aq-danger);
  background: var(--aq-danger);
  color: #fff7f5;
}

.btn-primary:active,
.btn-ghost:active,
.btn-danger:active,
button:active,
.side-nav a:active {
  transform: translateY(1px);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}

.metric-grid article,
.assignment-summary article {
  display: grid;
  min-height: 7rem;
  align-content: space-between;
  border: 1px solid var(--aq-line);
  border-radius: 1rem;
  background: #fdfefe;
  padding: 1.25rem;
  box-shadow: var(--aq-shadow);
}

.metric-grid strong,
.assignment-summary strong {
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: 2.25rem;
  font-weight: 900;
  line-height: 1;
}

.metric-grid span,
.assignment-summary span {
  color: var(--aq-muted);
  font-size: .875rem;
  font-weight: 650;
}

.row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--aq-line);
  padding: 1rem 0;
}

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

.row strong {
  display: block;
  color: var(--aq-ink);
  font-size: .875rem;
  font-weight: 750;
}

.row span {
  display: block;
  margin-top: .25rem;
  color: var(--aq-muted);
  font-size: .875rem;
}

.question-thumb {
  display: block;
  width: min(220px, 100%);
  max-height: 140px;
  margin-bottom: .75rem;
  border: 1px solid var(--aq-line);
  border-radius: .75rem;
  object-fit: contain;
  background: var(--aq-canvas);
}

.question-thumb.small {
  width: 96px;
  max-height: 72px;
  margin-bottom: 0;
}

.row-actions,
.course-actions,
.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.inline-form,
.form-grid,
.answer-grid,
.task-grid,
.course-grid,
.assignment-summary,
.filter-bar,
.assignment-question,
.assignment-question dl {
  display: grid;
  gap: .75rem;
}

.inline-form {
  margin-bottom: 1rem;
}

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

.answer-grid {
  border: 1px solid var(--aq-line);
  border-radius: 1rem;
  background: var(--aq-canvas);
  padding: .75rem;
}

.answer-grid textarea {
  grid-column: 1 / -1;
}

.check {
  display: flex;
  align-items: center;
  gap: .5rem;
}

.check input {
  width: 1rem;
  min-height: 1rem;
}

.empty-state {
  display: grid;
  min-height: 8rem;
  place-items: center;
  border: 1px dashed var(--aq-line);
  border-radius: 1rem;
  background: rgb(253 254 254 / 70%);
  padding: 1.5rem;
  color: var(--aq-muted);
  text-align: center;
  font-size: .875rem;
  font-weight: 650;
}

.empty-state.large {
  min-height: 16rem;
}

.auth-card {
  display: grid;
  width: 100%;
  max-width: 64rem;
  align-items: center;
  gap: 2rem;
}

.auth-card h1,
.gate-head h1 {
  max-width: 56rem;
  margin: 0;
  color: var(--aq-ink);
  font-size: clamp(2.25rem, 7vw, 3.75rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.045em;
}

.auth-card p,
.gate-head p,
.course-card p {
  color: var(--aq-muted);
  font-size: 1rem;
  line-height: 1.65;
}

.eyebrow,
.course-code {
  display: block;
  margin-bottom: .75rem;
  color: var(--aq-accent);
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.sample-list {
  display: grid;
  gap: .5rem;
}

code {
  border-radius: .5rem;
  background: var(--aq-canvas);
  padding: .25rem .5rem;
  color: var(--aq-accent-dark);
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: .75rem;
  font-weight: 700;
}

.course-gate {
  display: grid;
  width: 100%;
  max-width: 80rem;
  margin: 0 auto;
  gap: 1.5rem;
}

.gate-head {
  display: grid;
  align-items: end;
  gap: 1.5rem;
  padding: 2rem 0;
}

.gate-account {
  display: grid;
  gap: .25rem;
  border: 1px solid var(--aq-line);
  border-radius: 1rem;
  background: #fdfefe;
  padding: 1rem;
  box-shadow: var(--aq-shadow-tight);
}

.gate-account span {
  color: var(--aq-muted);
  font-size: .875rem;
}

.gate-account a {
  margin-top: .5rem;
  color: var(--aq-accent);
  font-size: .875rem;
  font-weight: 750;
  text-decoration: none;
}

.course-card {
  display: grid;
  min-height: 18rem;
  grid-template-rows: 1fr auto auto;
  gap: 1.25rem;
  border: 1px solid var(--aq-line);
  border-radius: 1rem;
  background: #fdfefe;
  padding: 1.25rem;
  box-shadow: var(--aq-shadow);
  transition: transform .16s ease, box-shadow .16s ease;
}

.course-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--aq-shadow-tight);
}

.course-card h2 {
  margin: .5rem 0 0;
  color: var(--aq-ink);
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.035em;
}

.course-card dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .5rem;
  margin: 0;
}

.course-card dl div,
.assignment-question dl div {
  border-radius: .75rem;
  background: var(--aq-canvas);
  padding: .75rem;
}

.course-card dt,
.assignment-question dt {
  color: var(--aq-muted);
  font-size: .75rem;
  font-weight: 650;
}

.course-card dd,
.assignment-question dd {
  margin: .25rem 0 0;
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: 1.125rem;
  font-weight: 900;
}

.course-create {
  max-width: 42rem;
}

.course-home {
  display: grid;
  gap: 1.25rem;
}

.course-entry-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  align-items: end;
  gap: 1.25rem;
}

.course-entry-copy h2 {
  max-width: 56rem;
  margin: 0;
  color: var(--aq-ink);
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.035em;
}

.course-entry-copy p {
  max-width: 52rem;
  margin: .75rem 0 0;
  color: var(--aq-muted);
  line-height: 1.65;
}

.course-entry-side {
  display: grid;
  gap: .75rem;
  align-content: end;
}

.course-jump {
  display: grid;
  gap: .75rem;
  border: 1px solid var(--aq-line);
  border-radius: .9rem;
  background: var(--aq-canvas);
  padding: 1rem;
}

.course-metrics {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.course-metrics-dynamic {
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
}

.course-metrics article em {
  display: block;
  margin-top: .35rem;
  color: var(--aq-muted);
  font-size: .75rem;
  font-style: normal;
  font-weight: 650;
}

.course-metrics article.is-warning {
  border-color: rgb(163 58 51 / 28%);
  background: rgb(163 58 51 / 6%);
}

.course-metrics article.is-ok strong {
  color: var(--aq-accent-dark);
}

.course-role-pills {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-top: .85rem;
}

.course-pick-panel,
.course-actions-panel {
  display: grid;
  gap: 1rem;
}

.course-quick-actions {
  margin-top: .25rem;
}

.course-admin-menu {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}

.course-menu-item {
  display: grid;
  min-height: 6.5rem;
  align-content: space-between;
  gap: .65rem;
  border: 1px solid var(--aq-line);
  border-radius: .9rem;
  background: var(--aq-canvas);
  padding: 1rem;
  color: var(--aq-ink);
  text-decoration: none;
  transition: transform .16s ease, border-color .16s ease, background .16s ease;
}

.course-menu-item:hover {
  transform: translateY(-1px);
  border-color: rgb(47 118 104 / 32%);
  background: rgb(47 118 104 / 6%);
}

.course-menu-item.is-primary {
  border-color: rgb(47 118 104 / 32%);
  background: rgb(47 118 104 / 10%);
}

.course-menu-item.is-disabled {
  color: rgb(100 112 107 / 62%);
  cursor: not-allowed;
  opacity: .72;
}

.course-menu-item.is-disabled:hover {
  transform: none;
  border-color: var(--aq-line);
  background: var(--aq-canvas);
}

.course-menu-item strong {
  font-size: 1rem;
  font-weight: 900;
}

.course-menu-item span {
  color: var(--aq-muted);
  font-size: .85rem;
  line-height: 1.45;
}

.admin-menu {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.muted-panel {
  background: rgb(253 254 254 / 72%);
  box-shadow: none;
}

.mini-inline-form {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}

.mini-inline-form select {
  min-height: 2.1rem;
  width: auto;
  min-width: 6.25rem;
  border-radius: .6rem;
  padding: 0 .55rem;
  font-size: .8rem;
}

.user-create-form {
  max-width: 48rem;
}

.attr-page,
.assign-page {
  display: grid;
  gap: 1rem;
}

.back-link {
  display: inline-flex;
  margin-bottom: .55rem;
  color: var(--aq-muted);
  font-size: .85rem;
  font-weight: 700;
  text-decoration: none;
}

.back-link:hover {
  color: var(--aq-accent-dark);
}

.attr-detail-head .panel-head {
  margin-bottom: .75rem;
}

.attr-detail-head .row-actions {
  margin-top: .25rem;
}

.empty-state span {
  display: block;
  margin-top: .4rem;
}

.view-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding: .25rem;
  border: 1px solid var(--aq-line);
  border-radius: 1rem;
  background: #fdfefe;
  box-shadow: var(--aq-shadow-tight);
}

.view-tab {
  display: inline-flex;
  min-height: 2.5rem;
  align-items: center;
  border-radius: .75rem;
  padding: 0 1rem;
  color: var(--aq-muted);
  font-size: .875rem;
  font-weight: 750;
  text-decoration: none;
  transition: background .16s ease, color .16s ease;
}

.view-tab:hover {
  background: var(--aq-canvas);
  color: var(--aq-ink);
}

.view-tab.is-active {
  background: rgb(47 118 104 / 12%);
  color: var(--aq-accent-dark);
}

.attr-two-col,
.assign-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 22rem);
  gap: 1rem;
  align-items: start;
}

.inline-action {
  display: inline-flex;
  margin: 0;
}

.inline-action-form {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto 7rem auto;
  align-items: end;
  gap: .75rem;
  margin-bottom: 1rem;
  border: 1px solid var(--aq-line);
  border-radius: .9rem;
  background: var(--aq-canvas);
  padding: .75rem;
}

.form-hint {
  margin: 0;
  color: var(--aq-muted);
  font-size: .875rem;
  font-weight: 550;
  line-height: 1.5;
}

.simple-list,
.assign-question-list {
  display: grid;
  gap: .65rem;
}

.simple-item,
.assign-question-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--aq-line);
  border-radius: .9rem;
  background: var(--aq-canvas);
  padding: .9rem 1rem;
  text-decoration: none;
  transition: border-color .16s ease, background .16s ease, transform .16s ease;
}

.assign-question-card:hover {
  border-color: rgb(47 118 104 / 32%);
  background: rgb(47 118 104 / 5%);
  transform: translateY(-1px);
}

.assign-question-card.is-active {
  border-color: rgb(47 118 104 / 40%);
  background: rgb(47 118 104 / 10%);
}

.simple-item-main,
.assign-question-copy {
  min-width: 0;
  display: grid;
  gap: .25rem;
}

.simple-item-main strong,
.assign-question-copy strong {
  color: var(--aq-ink);
  font-size: .95rem;
  font-weight: 800;
  line-height: 1.4;
}

.simple-item-main span,
.assign-question-copy span {
  color: var(--aq-muted);
  font-size: .8rem;
  font-weight: 650;
}

.simple-item-meta,
.assign-question-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: .4rem;
}

.assign-question-stats > span:not(.status-pill) {
  display: inline-flex;
  min-height: 1.75rem;
  align-items: center;
  border-radius: .65rem;
  padding: 0 .55rem;
  background: #fdfefe;
  border: 1px solid var(--aq-line);
  color: var(--aq-muted);
  font-size: .75rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.value-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.value-chip {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  min-height: 2rem;
  border: 1px solid var(--aq-line);
  border-radius: .7rem;
  background: #fdfefe;
  padding: 0 .75rem;
  color: var(--aq-ink);
  font-size: .85rem;
  font-weight: 700;
}

.value-chip em {
  color: var(--aq-muted);
  font-style: normal;
  font-size: .75rem;
  font-weight: 650;
}

.assign-context-form {
  max-width: 28rem;
}

.filter-chips {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .65rem;
}

@media (min-width: 1100px) {
  .filter-chips {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (min-width: 700px) and (max-width: 1099px) {
  .filter-chips {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.filter-chip {
  display: grid;
  gap: .35rem;
  border: 1px solid var(--aq-line);
  border-radius: .9rem;
  background: #fdfefe;
  padding: .85rem 1rem;
  color: inherit;
  text-decoration: none;
  box-shadow: var(--aq-shadow-tight);
  transition: border-color .16s ease, background .16s ease, transform .16s ease;
}

.filter-chip:hover {
  border-color: rgb(47 118 104 / 28%);
  transform: translateY(-1px);
}

.filter-chip.is-active {
  border-color: rgb(47 118 104 / 40%);
  background: rgb(47 118 104 / 10%);
}

.filter-chip span {
  color: var(--aq-muted);
  font-size: .75rem;
  font-weight: 800;
}

.filter-chip strong {
  color: var(--aq-ink);
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: 1.35rem;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
}

.assign-action {
  position: sticky;
  top: 1rem;
}

.assign-log-table {
  min-width: 860px;
}

.create-assign {
  display: grid;
  gap: 1.25rem;
}

.create-assign-hero {
  display: grid;
  gap: .45rem;
  max-width: 42rem;
}

.create-assign-hero h1 {
  margin: 0;
  color: var(--aq-ink);
  font-size: clamp(1.75rem, 3.2vw, 2.35rem);
  font-weight: 900;
  letter-spacing: -.035em;
  line-height: 1.1;
}

.create-assign-hero p {
  margin: 0;
  color: var(--aq-muted);
  font-size: .95rem;
  font-weight: 550;
  line-height: 1.55;
}

.topic-rail {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.topic-chip {
  display: inline-flex;
  min-height: 2.35rem;
  align-items: center;
  border: 1px solid var(--aq-line);
  border-radius: .75rem;
  background: #fdfefe;
  padding: 0 .9rem;
  color: var(--aq-muted);
  font-size: .85rem;
  font-weight: 750;
  text-decoration: none;
  transition: border-color .16s ease, background .16s ease, color .16s ease, transform .16s ease;
}

.topic-chip:hover {
  border-color: rgb(47 118 104 / 30%);
  color: var(--aq-ink);
  transform: translateY(-1px);
}

.topic-chip.is-active {
  border-color: rgb(47 118 104 / 40%);
  background: rgb(47 118 104 / 12%);
  color: var(--aq-accent-dark);
}

.create-assign-form {
  align-items: start;
}

.create-assign-main {
  min-width: 0;
}

.create-section .panel-head {
  margin-bottom: .85rem;
}

.pick-list,
.pick-people {
  display: grid;
  gap: .55rem;
  max-height: min(28rem, 55vh);
  overflow: auto;
  padding-right: .15rem;
}

.pick-row,
.pick-person {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: .85rem;
  margin: 0;
  border: 1px solid var(--aq-line);
  border-radius: .9rem;
  background: var(--aq-canvas);
  padding: .85rem 1rem;
  cursor: pointer;
  font-weight: inherit;
  transition: border-color .16s ease, background .16s ease, box-shadow .16s ease, transform .16s ease;
}

.pick-row:hover,
.pick-person:hover {
  border-color: rgb(47 118 104 / 30%);
  background: rgb(47 118 104 / 5%);
}

.pick-row.is-checked,
.pick-person.is-checked {
  border-color: rgb(47 118 104 / 42%);
  background: rgb(47 118 104 / 10%);
  box-shadow: inset 0 0 0 1px rgb(47 118 104 / 12%);
}

.pick-row:active,
.pick-person:active {
  transform: scale(.995);
}

.pick-row input,
.pick-person input {
  width: 1.05rem;
  min-height: 1.05rem;
  margin: 0;
  accent-color: var(--aq-accent);
}

.pick-row-body,
.pick-person-copy {
  min-width: 0;
  display: grid;
  gap: .2rem;
}

.pick-row-body strong,
.pick-person-copy strong {
  color: var(--aq-ink);
  font-size: .92rem;
  font-weight: 800;
  line-height: 1.35;
}

.pick-row-meta,
.pick-person-copy span {
  color: var(--aq-muted);
  font-size: .78rem;
  font-weight: 650;
}

.pick-row-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
}

.pick-row-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: .35rem;
}

.pick-row-stats span {
  display: inline-flex;
  min-height: 1.65rem;
  align-items: center;
  border: 1px solid var(--aq-line);
  border-radius: .55rem;
  background: #fdfefe;
  padding: 0 .5rem;
  color: var(--aq-muted);
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: .72rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.pick-people {
  grid-template-columns: 1fr;
}

.pick-person {
  grid-template-columns: auto auto minmax(0, 1fr) auto;
}

.pick-avatar {
  display: grid;
  width: 2.15rem;
  height: 2.15rem;
  place-items: center;
  border-radius: .7rem;
  background: var(--aq-accent);
  color: #f8fffc;
  font-size: .85rem;
  font-weight: 900;
}

.create-assign-side {
  display: grid;
  gap: 1.15rem;
  padding: 1.15rem;
}

.create-summary {
  display: grid;
  gap: .2rem;
  border: 1px solid rgb(47 118 104 / 22%);
  border-radius: .95rem;
  background:
    linear-gradient(160deg, rgb(47 118 104 / 12%), transparent 55%),
    #fdfefe;
  padding: 1rem 1.05rem;
}

.create-summary > span {
  color: var(--aq-muted);
  font-size: .75rem;
  font-weight: 800;
}

.create-summary strong {
  color: var(--aq-accent-dark);
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: 2.35rem;
  font-weight: 900;
  letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.create-summary p {
  margin: .15rem 0 0;
  color: var(--aq-muted);
  font-size: .85rem;
  font-weight: 650;
}

.create-config {
  display: grid;
  gap: .85rem;
}

.create-config h2 {
  margin: 0;
  font-size: 1rem;
  font-weight: 850;
}

.create-side-actions {
  display: grid;
  gap: .55rem;
}

.create-side-actions .btn-primary,
.create-side-actions .btn-ghost {
  width: 100%;
  justify-content: center;
}

.eval-page {
  display: grid;
  gap: 1.25rem;
}

.eval-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--aq-line);
  padding-bottom: 1rem;
}

.eval-topbar-copy h1 {
  margin: 0 0 .35rem;
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  letter-spacing: -.02em;
}

.eval-topbar-copy p {
  margin: 0;
  max-width: 42rem;
  color: var(--aq-muted);
  font-size: .92rem;
  line-height: 1.5;
}

.eval-topbar-meta,
.eval-meta-chips,
.eval-toolbar-meta,
.eval-progress {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
}

.eval-desc-toggle {
  flex-shrink: 0;
}

.eval-stack {
  display: grid;
  gap: 1.25rem;
}

.eval-stage {
  border: 1px solid var(--aq-line);
  border-radius: 1.1rem;
  background:
    linear-gradient(180deg, rgb(255 255 255 / 88%), rgb(251 252 251 / 96%)),
    var(--aq-panel);
  box-shadow: var(--aq-shadow-tight);
  padding: 1.15rem 1.2rem 1.3rem;
}

.eval-stage-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: .85rem 1rem;
  margin-bottom: 1rem;
}

.eval-stage-head h2 {
  margin: .35rem 0 0;
  font-size: 1.2rem;
  letter-spacing: -.01em;
}

.eval-stage-sub {
  margin: .35rem 0 0;
  max-width: 40rem;
  color: var(--aq-muted);
  font-size: .86rem;
  line-height: 1.45;
}

.eq-step-badge {
  display: inline-flex;
  align-items: center;
  min-height: 1.55rem;
  border-radius: 999px;
  background: rgb(47 118 104 / 12%);
  color: var(--aq-accent-dark);
  padding: 0 .7rem;
  font-size: .72rem;
  font-weight: 850;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.eq-step-badge.is-done {
  background: rgb(47 118 104 / 18%);
}

.eval-progress-chip {
  display: inline-flex;
  align-items: center;
  min-height: 2.1rem;
  border: 1px solid rgb(47 118 104 / 25%);
  border-radius: .75rem;
  background: rgb(47 118 104 / 8%);
  color: var(--aq-accent-dark);
  padding: 0 .8rem;
  font-size: .82rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  transition: background .18s ease, border-color .18s ease, color .18s ease;
}

.eval-progress-chip.is-complete {
  border-color: rgb(47 118 104 / 40%);
  background: rgb(47 118 104 / 16%);
}

.eq-surface {
  display: grid;
  gap: 1rem;
}

.eq-practice,
.eq-solution {
  display: grid;
  gap: 1rem;
}

.eq-practice[hidden],
.eq-solution[hidden],
[data-eval-unlock][hidden] {
  display: none !important;
}

.eq-solution .question-detail {
  border: 0;
  background: transparent;
  padding: 0;
}

.eq-solution .answer-item--mcq.is-correct,
.eq-solution .answer-item.is-correct {
  border-color: rgb(47 118 104 / 40%);
  background: rgb(47 118 104 / 8%);
}

.eq-practice-banner,
.eq-solution-banner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .75rem;
  align-items: start;
  border: 1px solid rgb(47 118 104 / 22%);
  border-radius: .95rem;
  background: rgb(47 118 104 / 7%);
  padding: .9rem 1rem;
}

.eq-practice-banner strong,
.eq-solution-banner strong {
  display: block;
  margin-bottom: .2rem;
}

.eq-practice-banner p,
.eq-solution-banner p {
  margin: 0;
  color: var(--aq-muted);
  font-size: .84rem;
  line-height: 1.45;
}

.eq-prompt,
.eq-block,
.eq-figure {
  display: grid;
  gap: .55rem;
}

.eq-kicker {
  color: var(--aq-muted);
  font-size: .72rem;
  font-weight: 850;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.eq-prompt-text {
  color: var(--aq-ink);
  font-size: 1.05rem;
  font-weight: 750;
  line-height: 1.65;
}

.eq-figure {
  margin: 0;
}

.eq-options,
.eq-fill-list,
.eq-sequence-list,
.eq-match-list {
  display: grid;
  gap: .65rem;
}

.eq-option,
.eq-fill-card,
.eq-sequence-card,
.eq-match-card {
  display: grid;
  gap: .65rem;
  margin: 0;
  border: 1px solid var(--aq-line);
  border-radius: .95rem;
  background: #fdfefe;
  padding: .9rem 1rem;
  transition: border-color .18s ease, background .18s ease, box-shadow .18s ease, transform .12s ease;
}

.eq-option {
  position: relative;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  cursor: pointer;
  min-height: 3.4rem;
}

.eq-option input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.eq-option-mark {
  display: inline-grid;
  place-items: center;
  width: 2.15rem;
  height: 2.15rem;
  border-radius: .7rem;
  background: rgb(47 118 104 / 12%);
  color: var(--aq-accent-dark);
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: .9rem;
  font-weight: 850;
  transition: background .16s ease, color .16s ease, transform .12s ease;
}

.eq-option:has(input:checked) .eq-option-mark {
  background: var(--aq-accent);
  color: #fff;
  transform: scale(1.04);
}

.eq-option-text {
  padding-top: .25rem;
  line-height: 1.55;
  font-weight: 600;
}

.eq-option:hover {
  border-color: rgb(47 118 104 / 35%);
}

.eq-option:has(input:checked) {
  border-color: rgb(47 118 104 / 45%);
  background: rgb(47 118 104 / 10%);
  box-shadow: inset 0 0 0 1px rgb(47 118 104 / 18%);
}

.eq-option:has(input:focus-visible) {
  box-shadow: 0 0 0 4px rgb(47 118 104 / 15%);
}

.eq-option:active {
  transform: scale(.995);
}

.eq-fill-card input,
.eq-sequence-card select,
.eq-match-card select {
  min-height: 2.75rem;
  width: 100%;
}

.eq-fill-passage,
.eq-sequence-text,
.eq-match-left {
  margin: 0;
  color: var(--aq-ink);
  line-height: 1.55;
  font-weight: 650;
}

.eq-sequence-card,
.eq-match-card {
  grid-template-columns: 7.5rem minmax(0, 1fr);
  align-items: center;
}

.eq-practice-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  border-top: 1px solid var(--aq-line);
  padding-top: 1rem;
}

.eq-check-btn {
  min-height: 2.85rem;
  min-width: 10.5rem;
}

.eq-feedback {
  margin: 0;
  font-size: .88rem;
  font-weight: 750;
}

.eq-feedback.is-ok {
  color: var(--aq-accent-dark);
}

.eq-feedback.is-error {
  color: var(--aq-danger);
}

.eval-conflict-banner {
  display: grid;
  gap: .55rem;
  margin-bottom: 1rem;
  border: 1px solid rgb(163 120 51 / 28%);
  border-radius: .85rem;
  background: rgb(196 146 58 / 10%);
  padding: .85rem 1rem;
}

.eval-conflict-banner strong {
  color: #7a5a1a;
  font-size: .85rem;
}

.eval-prior-reviews {
  display: grid;
  gap: .75rem;
  margin-top: 1.1rem;
  border-top: 1px solid var(--aq-line);
  padding-top: 1.1rem;
}

.eval-prior-head h3 {
  margin: 0 0 .25rem;
  font-size: 1rem;
}

.eval-prior-head p {
  margin: 0;
  color: var(--aq-muted);
  font-size: .82rem;
  line-height: 1.45;
}

.eval-prior-list {
  display: grid;
  gap: .65rem;
}

.eval-prior-attr {
  display: grid;
  gap: .55rem;
  border: 1px solid var(--aq-line);
  border-radius: .85rem;
  background: #fdfefe;
  padding: .75rem .85rem;
}

.eval-prior-attr.is-conflict {
  border-color: rgb(163 120 51 / 35%);
  background: rgb(196 146 58 / 8%);
}

.eval-prior-attr-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
}

.eval-prior-attr-head strong {
  font-size: .88rem;
}

.eval-prior-values {
  display: grid;
  gap: .45rem;
}

.eval-prior-value {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .35rem .65rem;
  align-items: start;
}

.eval-prior-label {
  color: var(--aq-muted);
  font-size: .72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .02em;
  padding-top: .35rem;
}

.eval-prior-body {
  display: grid;
  gap: .45rem;
  min-width: 0;
}

.eval-prior-chip {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 1.75rem;
  border: 1px solid var(--aq-line);
  border-radius: .6rem;
  background: var(--aq-canvas);
  padding: .2rem .6rem;
  color: var(--aq-ink);
  font-size: .85rem;
  font-weight: 750;
}

.eval-prior-note {
  display: grid;
  gap: .2rem;
  border-left: 2px solid var(--aq-line);
  padding-left: .65rem;
}

.eval-prior-note-label {
  color: var(--aq-muted);
  font-size: .72rem;
  font-weight: 800;
}

.eval-prior-note p {
  margin: 0;
  color: var(--aq-ink);
  font-size: .82rem;
  font-weight: 500;
  line-height: 1.45;
}

.eval-prior-note p.is-empty {
  color: var(--aq-muted);
  font-style: italic;
  font-weight: 500;
}

.eval-stage--rate.is-locked .eval-form {
  display: none;
}

.eval-form-lock {
  display: grid;
  gap: .35rem;
  margin-bottom: 0;
  border: 1px dashed rgb(163 120 51 / 40%);
  border-radius: .95rem;
  background: rgb(196 146 58 / 10%);
  padding: 1rem 1.1rem;
}

.eval-stage--rate:not(.is-locked) .eval-form-lock {
  display: none;
}

.eval-form-lock strong {
  color: #7a5a1a;
}

.eval-form-lock p {
  margin: 0;
  color: var(--aq-muted);
  font-size: .84rem;
  line-height: 1.45;
}

.eval-form {
  display: grid;
  gap: 1rem;
}

.eval-attr-list {
  display: grid;
  gap: .9rem;
}

.eval-attr-card {
  display: grid;
  gap: .75rem;
  margin: 0;
  border: 1px solid var(--aq-line);
  border-radius: 1rem;
  background: #fdfefe;
  padding: 1rem 1.05rem;
  min-inline-size: 0;
  transition: border-color .18s ease, box-shadow .18s ease;
}

.eval-attr-card.is-filled {
  border-color: rgb(47 118 104 / 35%);
  box-shadow: inset 0 0 0 1px rgb(47 118 104 / 10%);
}

.eval-attr-legend {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: .7rem;
  align-items: start;
  float: none;
  width: 100%;
  padding: 0;
}

.eval-attr-index {
  display: inline-grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: .6rem;
  background: rgb(47 118 104 / 12%);
  color: var(--aq-accent-dark);
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: .8rem;
  font-weight: 850;
}

.eval-attr-title-wrap {
  display: grid;
  gap: .35rem;
}

.eval-attr-title {
  color: var(--aq-ink);
  font-size: .98rem;
  font-weight: 850;
}

.eval-form .required-mark {
  color: var(--aq-danger);
  font-style: normal;
  font-weight: 900;
}

.eval-attr-tag {
  display: inline-flex;
  width: fit-content;
  border-radius: 999px;
  background: rgb(47 118 104 / 12%);
  color: var(--aq-accent-dark);
  padding: .15rem .55rem;
  font-size: .7rem;
  font-weight: 800;
}

.eval-attr-tag.is-optional {
  background: rgb(100 112 107 / 10%);
  color: var(--aq-muted);
}

.eval-attr-picked {
  display: inline-flex;
  align-items: center;
  max-width: 12rem;
  min-height: 1.85rem;
  border-radius: .65rem;
  background: rgb(47 118 104 / 12%);
  color: var(--aq-accent-dark);
  padding: .2rem .65rem;
  font-size: .78rem;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.eval-attr-desc,
.eval-choice-desc {
  margin: 0;
  color: var(--aq-muted);
  font-size: .82rem;
  font-weight: 500;
  line-height: 1.45;
}

.eval-page.is-hide-desc .eval-attr-desc,
.eval-page.is-hide-desc .eval-choice-desc {
  display: none;
}

.eval-choice-panel {
  display: grid;
  gap: .55rem;
}

.eval-choice-search input {
  min-height: 2.6rem;
}

.eval-chip-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: .45rem;
  border: 1px solid var(--aq-line);
  border-radius: .9rem;
  background: var(--aq-canvas);
  padding: .65rem;
}

.eval-choice-chip {
  display: grid;
  margin: 0;
  cursor: pointer;
}

.eval-choice-chip[hidden] {
  display: none;
}

.eval-choice-chip input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.eval-choice-body {
  display: grid;
  gap: .25rem;
  height: 100%;
  min-height: 2.85rem;
  border: 1px solid var(--aq-line);
  border-radius: .8rem;
  background: #fdfefe;
  padding: .7rem .85rem;
  transition: border-color .16s ease, background .16s ease, box-shadow .16s ease, transform .12s ease;
}

.eval-choice-chip:hover .eval-choice-body {
  border-color: rgb(47 118 104 / 35%);
}

.eval-choice-chip:active .eval-choice-body {
  transform: scale(.99);
}

.eval-choice-chip input:focus-visible + .eval-choice-body {
  border-color: var(--aq-accent);
  box-shadow: 0 0 0 4px rgb(47 118 104 / 15%);
}

.eval-choice-chip input:checked + .eval-choice-body {
  border-color: rgb(47 118 104 / 45%);
  background: rgb(47 118 104 / 10%);
  box-shadow: inset 0 0 0 1px rgb(47 118 104 / 18%);
}

.eval-choice-label {
  color: var(--aq-ink);
  font-size: .88rem;
  font-weight: 800;
}

.eval-numeric input {
  max-width: 14rem;
  min-height: 2.75rem;
}

.eval-note {
  display: grid;
  gap: .35rem;
  font-size: .8rem;
  font-weight: 700;
  color: var(--aq-muted);
}

.eval-note textarea {
  min-height: 3.4rem;
  font-weight: 500;
  color: var(--aq-ink);
}

.eval-submit-bar {
  position: sticky;
  bottom: 0;
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .85rem;
  margin-top: .25rem;
  border: 1px solid var(--aq-line);
  border-radius: .95rem;
  background: rgb(253 254 254 / 96%);
  backdrop-filter: blur(10px);
  padding: .85rem 1rem;
  box-shadow: 0 -8px 24px rgb(34 59 51 / 6%);
}

.eval-submit-bar p {
  margin: 0;
  color: var(--aq-muted);
  font-size: .84rem;
}

.eval-submit-bar .btn-primary {
  min-height: 2.85rem;
  min-width: 10rem;
}

.eval-type-chip.is-trac_nghiem {
  background: rgb(47 118 104 / 12%);
  color: var(--aq-accent-dark);
}

.eval-type-chip.is-dien_doan_van {
  background: rgb(59 110 165 / 12%);
  color: #2f5f8f;
}

.eval-type-chip.is-sap_xep {
  background: rgb(163 120 51 / 14%);
  color: #7a5a1a;
}

.eval-type-chip.is-noi_cot {
  background: rgb(120 80 160 / 12%);
  color: #5d3f7a;
}

.eval-type-chip.is-mo_ta_code {
  background: rgb(40 55 70 / 10%);
  color: #2c3a48;
}

.eval-question-body {
  margin-top: .15rem;
}

@media (prefers-reduced-motion: no-preference) {
  .eq-practice,
  .eq-solution,
  .eval-stage--rate {
    transition: opacity .28s ease, transform .28s ease;
  }

  .eval-page.is-require-answer:not(.is-ready) .eval-stage--rate {
    opacity: .92;
  }

  .eval-page.is-ready .eq-solution {
    animation: eval-reveal .35s ease both;
  }
}

@keyframes eval-reveal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .eq-sequence-card,
  .eq-match-card,
  .eval-attr-legend {
    grid-template-columns: 1fr;
  }

  .eval-submit-bar {
    align-items: stretch;
  }

  .eval-submit-bar .btn-primary {
    width: 100%;
  }
}

.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;
}

.code-preview {
  margin: 0;
  overflow-x: auto;
  border-radius: .65rem;
  background: #0f1715;
  color: #e8f5f0;
  padding: .85rem 1rem;
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: .82rem;
  line-height: 1.55;
  white-space: pre-wrap;
}

.assignment-toolbar {
  margin-bottom: 1.25rem;
}

.assignment-summary {
  margin-bottom: 1.25rem;
}

.assignment-question {
  align-items: center;
  border: 1px solid var(--aq-line);
  border-radius: 1rem;
  background: var(--aq-panel);
  padding: 1rem;
}

.assignment-question strong {
  display: block;
  font-size: .875rem;
  font-weight: 750;
  line-height: 1.5;
}

.assignment-question span {
  display: block;
  margin-top: .25rem;
  color: var(--aq-muted);
  font-size: .875rem;
}

.assignment-question dl {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--aq-line);
  border-radius: 1rem;
}

.data-table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
  background: #fdfefe;
}

.data-table th,
.data-table td {
  border-bottom: 1px solid var(--aq-line);
  padding: .875rem 1rem;
  text-align: left;
  vertical-align: middle;
  font-size: .875rem;
}

.data-table th {
  background: var(--aq-canvas);
  color: var(--aq-muted);
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .02em;
}

.data-table tbody tr:hover {
  background: rgb(47 118 104 / 5%);
}

.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.data-table strong {
  color: var(--aq-ink);
  font-weight: 800;
}

.number-badge {
  display: inline-flex;
  min-width: 2.25rem;
  height: 2rem;
  align-items: center;
  justify-content: center;
  border-radius: .65rem;
  background: rgb(47 118 104 / 10%);
  color: var(--aq-accent-dark);
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-weight: 900;
}

.status-pill {
  display: inline-flex;
  min-height: 1.75rem;
  align-items: center;
  border-radius: .65rem;
  padding: 0 .65rem;
  background: var(--aq-canvas);
  color: var(--aq-muted);
  font-size: .75rem;
  font-weight: 800;
  white-space: nowrap;
}

.status-pill.success {
  background: rgb(47 118 104 / 12%);
  color: var(--aq-accent-dark);
}

.status-pill.warning {
  background: #fff7ed;
  color: #9a3412;
}

.status-pill.muted {
  background: rgb(100 112 107 / 10%);
  color: var(--aq-muted);
}

.btn-compact {
  min-height: 2.1rem;
  padding: 0 .7rem;
  border-radius: .6rem;
  font-size: .78rem;
  white-space: nowrap;
}

.question-detail-row[hidden] {
  display: none;
}

.question-detail-row td {
  background: var(--aq-canvas);
}

.question-detail {
  display: grid;
  gap: 1rem;
  border: 1px solid var(--aq-line);
  border-radius: .9rem;
  background: #fdfefe;
  padding: 1rem;
}

.detail-label {
  display: block;
  margin-bottom: .45rem;
  color: var(--aq-muted);
  font-size: .75rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: .02em;
}

.detail-question-text {
  color: var(--aq-ink);
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.6;
}

.answer-list,
.matching-preview {
  display: grid;
  gap: .6rem;
}

.answer-list--sequence {
  margin: 0;
  padding: 0;
  list-style: none;
}

.answer-item,
.matching-pair {
  display: grid;
  gap: .35rem;
  border: 1px solid var(--aq-line);
  border-radius: .75rem;
  background: var(--aq-canvas);
  padding: .75rem;
}

.answer-item--mcq,
.answer-item--fill,
.answer-item--sequence {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: .75rem;
}

.option-letter,
.seq-badge {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: .65rem;
  background: rgb(47 118 104 / 12%);
  color: var(--aq-accent-dark);
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: .85rem;
  font-weight: 850;
}

.answer-item-body {
  display: grid;
  gap: .35rem;
  min-width: 0;
}

.answer-flag {
  color: var(--aq-accent-dark);
  font-size: .72rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: .02em;
}

.answer-item span,
.matching-pair span,
.matching-pair-label,
.matching-col-label {
  color: var(--aq-muted);
  font-size: .75rem;
  font-weight: 850;
}

.answer-item p,
.matching-pair p,
.matching-col p {
  margin: 0;
  color: var(--aq-ink);
  line-height: 1.55;
}

.answer-item.is-correct {
  border-color: rgb(47 118 104 / 28%);
  background: rgb(47 118 104 / 8%);
}

.answer-item.is-correct .option-letter {
  background: var(--aq-accent);
  color: #f7fbf9;
}

.matching-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .65rem;
}

.matching-col {
  display: grid;
  gap: .35rem;
  border: 1px solid var(--aq-line);
  border-radius: .65rem;
  background: #fdfefe;
  padding: .65rem .75rem;
}

.matching-col-label {
  display: block;
}

.answer-inline-list {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: .15rem 0 0;
  padding: 0;
  list-style: none;
}

.answer-inline-list li {
  border-radius: .55rem;
  background: rgb(47 118 104 / 12%);
  padding: .25rem .5rem;
  color: var(--aq-accent-dark);
  font-size: .8rem;
  font-weight: 750;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgb(11 17 16 / 46%);
  backdrop-filter: blur(8px);
}

.modal-backdrop.is-open {
  display: flex;
}

.modal-card {
  width: min(560px, 100%);
  border: 1px solid var(--aq-line);
  border-radius: 1.25rem;
  background: #fdfefe;
  box-shadow: 0 24px 80px rgb(11 17 16 / 24%);
}

.modal-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--aq-line);
  padding: 1.25rem;
}

.modal-head h2 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -.025em;
}

.modal-head p {
  margin: .35rem 0 0;
  color: var(--aq-muted);
  font-size: .875rem;
  line-height: 1.5;
}

.modal-close {
  width: 2.25rem;
  min-height: 2.25rem;
  padding: 0;
  border-color: var(--aq-line);
  background: #fdfefe;
  color: var(--aq-muted);
  font-size: 1.35rem;
}

.modal-form {
  border: 0;
  border-radius: 0 0 1.25rem 1.25rem;
  box-shadow: none;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: .5rem;
}

.sync-actions {
  margin-top: 1rem;
}

.sync-toolbar,
.bulk-select-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1.25rem;
  margin-bottom: 1rem;
  border: 1px solid var(--aq-line);
  border-radius: .875rem;
  background: var(--aq-canvas);
  padding: .75rem 1rem;
}

.bulk-select-toolbar.is-scope-all {
  border-color: rgb(47 118 104 / 35%);
  background: rgb(47 118 104 / 8%);
}

.bulk-select-toolbar .check.is-disabled {
  opacity: .55;
}

.pick-group-label {
  position: sticky;
  top: 0;
  z-index: 1;
  margin-top: .35rem;
  border-radius: .55rem;
  background: #eef3f1;
  padding: .4rem .65rem;
  color: var(--aq-muted);
  font-size: .75rem;
  font-weight: 850;
}

.pick-group-label:first-child {
  margin-top: 0;
}

.assign-filter-panel {
  margin-bottom: 1rem;
}

.assign-create-filters {
  margin: 0;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .65rem;
  margin-top: 1rem;
  margin-bottom: 0;
}

.pagination-pages {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .35rem;
}

.pagination-page {
  display: inline-grid;
  min-width: 2.35rem;
  min-height: 2.35rem;
  place-items: center;
  border: 1px solid var(--aq-line);
  border-radius: .7rem;
  background: #fdfefe;
  color: var(--aq-ink);
  font-size: .85rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  text-decoration: none;
  transition: border-color .16s ease, background .16s ease, color .16s ease;
}

.pagination-page:hover {
  border-color: rgb(47 118 104 / 35%);
  color: var(--aq-accent-dark);
}

.pagination-page.is-current {
  border-color: rgb(47 118 104 / 40%);
  background: rgb(47 118 104 / 14%);
  color: var(--aq-accent-dark);
}

.pagination-ellipsis {
  display: inline-grid;
  min-width: 1.5rem;
  place-items: center;
  color: var(--aq-muted);
  font-weight: 800;
}

.pagination-nav.is-disabled {
  opacity: .45;
  pointer-events: none;
}

.sync-toolbar span {
  color: var(--aq-muted);
  font-size: .875rem;
  font-weight: 650;
}

.filter-shortcuts {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: .85rem;
}

.filter-shortcuts a {
  text-decoration: none;
}

.question-filter {
  margin-bottom: 1rem;
}

.question-bank-table {
  min-width: 1180px;
}

.question-text-cell {
  min-width: 360px;
  max-width: 560px;
}

.question-text-cell strong {
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  line-height: 1.45;
}

.cell-note {
  display: block;
  margin-top: .25rem;
  color: var(--aq-muted);
  font-size: .75rem;
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
}

.qb-page {
  display: grid;
  gap: 1.15rem;
}

.qb-hero {
  display: grid;
  gap: .35rem;
  max-width: 44rem;
}

.qb-hero h1 {
  margin: 0;
  color: var(--aq-ink);
  font-size: clamp(1.7rem, 3vw, 2.25rem);
  font-weight: 900;
  letter-spacing: -.035em;
  line-height: 1.1;
}

.qb-hero p {
  margin: 0;
  color: var(--aq-muted);
  font-size: .92rem;
  font-weight: 550;
  line-height: 1.5;
}

.qb-status-rail {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7.5rem, 1fr));
  gap: .55rem;
}

.qb-status-chip {
  display: grid;
  gap: .2rem;
  border: 1px solid var(--aq-line);
  border-radius: .9rem;
  background: #fdfefe;
  padding: .75rem .9rem;
  color: inherit;
  text-decoration: none;
  box-shadow: var(--aq-shadow-tight);
  transition: border-color .16s ease, background .16s ease, transform .16s ease;
}

.qb-status-chip:hover {
  border-color: rgb(47 118 104 / 28%);
  transform: translateY(-1px);
}

.qb-status-chip.is-active {
  border-color: rgb(47 118 104 / 40%);
  background: rgb(47 118 104 / 10%);
}

.qb-status-chip span {
  color: var(--aq-muted);
  font-size: .72rem;
  font-weight: 800;
}

.qb-status-chip strong {
  color: var(--aq-ink);
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-size: 1.25rem;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.qb-status-chip.is-co_xung_dot.is-active {
  border-color: rgb(163 58 51 / 35%);
  background: rgb(163 58 51 / 8%);
}

.qb-status-chip.is-da_hoan_thanh.is-active {
  border-color: rgb(47 118 104 / 40%);
  background: rgb(47 118 104 / 12%);
}

.qb-panel {
  overflow: hidden;
}

.qb-filters {
  display: grid;
  grid-template-columns: minmax(12rem, 1.6fr) repeat(4, minmax(8rem, 1fr)) auto;
  gap: .75rem;
  align-items: end;
  margin-bottom: 1rem;
}

.qb-list {
  display: grid;
  gap: .65rem;
}

.qb-item {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: start;
  border: 1px solid var(--aq-line);
  border-radius: 1rem;
  background: var(--aq-canvas);
  padding: .9rem 1rem;
  transition: border-color .16s ease, background .16s ease, transform .16s ease;
}

.qb-item:hover {
  border-color: rgb(47 118 104 / 28%);
  background: rgb(47 118 104 / 4%);
}

a.qb-item.is-link {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

a.qb-item.is-link:hover {
  transform: translateY(-1px);
}

a.qb-item.is-link:focus-visible {
  outline: 2px solid rgb(47 118 104 / 55%);
  outline-offset: 2px;
}

.qb-media {
  display: grid;
}

.qb-thumb {
  display: block;
  width: 4.5rem;
  height: 4.5rem;
  border: 1px solid var(--aq-line);
  border-radius: .8rem;
  object-fit: cover;
  background: #fdfefe;
}

.qb-thumb.is-empty {
  display: grid;
  place-items: center;
  color: var(--aq-muted);
  font-size: .7rem;
  font-weight: 900;
  letter-spacing: .06em;
  background:
    linear-gradient(145deg, rgb(47 118 104 / 8%), transparent 60%),
    #fdfefe;
}

.qb-body {
  min-width: 0;
  display: grid;
  gap: .55rem;
}

.qb-text {
  margin: 0;
  color: var(--aq-ink);
  font-size: .95rem;
  font-weight: 750;
  line-height: 1.45;
}

.qb-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  align-items: center;
}

.qb-chip {
  display: inline-flex;
  min-height: 1.65rem;
  align-items: center;
  border: 1px solid var(--aq-line);
  border-radius: .55rem;
  background: #fdfefe;
  padding: 0 .55rem;
  color: var(--aq-muted);
  font-size: .75rem;
  font-weight: 750;
}

.qb-chip.is-mono {
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
  font-variant-numeric: tabular-nums;
}

.source-tag {
  display: inline-flex;
  min-height: 1.65rem;
  align-items: center;
  border-radius: .55rem;
  padding: 0 .55rem;
  font-size: .72rem;
  font-weight: 850;
  letter-spacing: .01em;
  border: 1px solid rgb(47 118 104 / 28%);
  background: rgb(47 118 104 / 10%);
  color: var(--aq-accent-dark);
}

.source-tag.is-manual {
  border-color: var(--aq-line);
  background: #fdfefe;
  color: var(--aq-muted);
}

.source-tag.is-genweb {
  border-color: rgb(47 92 118 / 28%);
  background: rgb(47 92 118 / 10%);
  color: #2f5c76;
}

.source-tag.is-adaptive {
  border-color: rgb(118 47 72 / 28%);
  background: rgb(118 47 72 / 10%);
  color: #762f48;
}

.source-tag.is-learning2ne1 {
  border-color: rgb(118 92 47 / 28%);
  background: rgb(118 92 47 / 10%);
  color: #765c2f;
}

.qb-date {
  display: grid;
  gap: .15rem;
  justify-items: end;
  color: var(--aq-ink);
  font-size: .82rem;
  font-weight: 750;
  white-space: nowrap;
}

.qb-date span {
  color: var(--aq-muted);
  font-size: .75rem;
  font-weight: 650;
  font-family: "Geist Mono", "Cascadia Code", Consolas, monospace;
}

.qb-pagination {
  margin-top: 1.1rem;
}

@media (max-width: 1100px) {
  .qb-filters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .qb-search {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .qb-item {
    grid-template-columns: 3.5rem minmax(0, 1fr);
  }

  .qb-thumb {
    width: 3.5rem;
    height: 3.5rem;
  }

  .qb-date {
    grid-column: 2;
    justify-items: start;
  }

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

@media (prefers-color-scheme: dark) {
  body {
    background: #0b1110;
    color: #f4f7f5;
  }

  input,
  select,
  textarea,
  .sidebar,
  .panel,
  .form-card,
  .metric-grid article,
  .assignment-summary article,
  .course-card,
  .gate-account,
  .modal-card,
  .modal-close,
  .data-table,
  .toast {
    border-color: #27312e;
    background: #101816;
    color: #f4f7f5;
  }

  .toast.is-error {
    border-color: rgb(220 100 90 / 35%);
    background: #1a1010;
    color: #f3b4b0;
  }

  .toast.is-warning {
    border-color: rgb(220 170 90 / 35%);
    background: #1a160f;
    color: #f0d3a0;
  }

  .course-select,
  .answer-grid,
  .course-card dl div,
  .assignment-question,
  .assignment-question dl div,
  .qb-status-chip,
  .qb-item,
  .qb-thumb,
  .qb-chip,
  code {
    border-color: #27312e;
    background: #0b1110;
  }

  .page-head,
  .account,
  .row,
  .table-wrap,
  .data-table th,
  .data-table td,
  .modal-head {
    border-color: #27312e;
  }

  .page-head h1,
  .panel-head h2,
  .form-card h2,
  .row strong,
  .course-card h2,
  .auth-card h1,
  .gate-head h1 {
    color: #f4f7f5;
  }

  .data-table th,
  .data-table tbody tr:hover {
    background: #0b1110;
  }

  .data-table strong,
  .modal-head h2 {
    color: #f4f7f5;
  }

  .number-badge {
    background: rgb(47 118 104 / 22%);
    color: #a7f3d0;
  }

  .page-head p,
  .panel-head span,
  .metric-grid span,
  .assignment-summary span,
  .row span,
  .course-select,
  .account span,
  .course-card p,
  .auth-card p,
  .gate-head p,
  .assignment-question span,
  .course-card dt,
  .assignment-question dt {
    color: #9aa8a3;
  }

  .btn-ghost {
    border-color: #27312e;
    background: #0b1110;
    color: #f4f7f5;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .panel,
  .form-card,
  .metric-grid article,
  .assignment-summary article,
  .course-card {
    animation: aq-enter 260ms cubic-bezier(.16, 1, .3, 1) both;
  }
}

@keyframes aq-enter {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 768px) {
  .course-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .auth-card {
    grid-template-columns: minmax(0, 1fr) 24rem;
  }
}

@media (min-width: 1024px) {
  .dashboard-grid,
  .content-split {
    grid-template-columns: minmax(320px, .75fr) minmax(0, 1.25fr);
  }

  .content-split.wide {
    grid-template-columns: minmax(380px, .85fr) minmax(0, 1.15fr);
  }

  .inline-form {
    grid-template-columns: minmax(0, 1fr) auto 7rem auto;
    align-items: end;
  }

  .filter-bar {
    grid-template-columns: minmax(260px, 1fr) minmax(240px, .8fr) auto;
    align-items: end;
  }

  .sync-filter {
    grid-template-columns: repeat(3, minmax(220px, 1fr)) auto;
  }

  .gate-head {
    grid-template-columns: minmax(0, 1fr) 18rem;
  }

  .assignment-question {
    grid-template-columns: minmax(0, 1fr) minmax(260px, .54fr);
  }
}

@media (min-width: 1280px) {
  .course-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .assignment-summary {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .course-entry-panel,
  .course-admin-menu,
  .course-metrics,
  .admin-menu,
  .attr-two-col,
  .assign-workspace,
  .eval-layout,
  .inline-action-form,
  .filter-chips,
  .matching-cols {
    grid-template-columns: 1fr;
  }

  .simple-item,
  .assign-question-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .simple-item-meta,
  .assign-question-stats {
    justify-content: flex-start;
  }

  .pick-row,
  .pick-person {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .pick-person .pick-avatar {
    display: none;
  }

  .pick-row-stats,
  .pick-person .status-pill {
    grid-column: 2;
    justify-self: start;
  }

  .pick-list,
  .pick-people {
    max-height: none;
  }

  .assign-action,
  .eval-form-wrap {
    position: static;
  }

  .create-assign-side {
    position: sticky;
    bottom: 0;
    z-index: 20;
    border-radius: 1rem 1rem 0 0;
    box-shadow: 0 -12px 32px rgb(34 59 51 / 12%);
  }

  .mobile-topbar {
    position: sticky;
    top: 0;
    z-index: 35;
    display: flex;
    align-items: center;
    gap: .75rem;
    border-bottom: 1px solid var(--aq-line);
    background: rgb(253 254 254 / 96%);
    padding: .75rem 1rem;
    backdrop-filter: blur(12px);
  }

  .mobile-topbar strong {
    font-size: .9rem;
  }

  .sidebar-overlay {
    position: fixed;
    inset: 0;
    z-index: 45;
    display: none;
    background: rgb(24 32 29 / 45%);
  }

  .sidebar-overlay.is-open {
    display: block;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 50;
    width: min(18rem, 86vw);
    transform: translateX(-105%);
    transition: transform .2s ease;
  }

  .sidebar.is-open {
    transform: translateX(0);
  }

  .main {
    width: 100%;
    margin-left: 0;
    padding: 1rem;
  }

  .side-nav {
    display: grid;
    overflow: visible;
  }

  .side-nav a {
    flex: initial;
    white-space: normal;
  }

  .row {
    grid-template-columns: 1fr;
  }

  .data-table {
    min-width: 720px;
  }
}

@media (max-width: 767px) {
  .form-grid,
  .answer-grid,
  .course-card dl,
  .assignment-question dl,
  .metric-grid {
    grid-template-columns: 1fr;
  }
}