:root {
  color-scheme: light;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --background: #f5f5f4;
  --surface: #ffffff;
  --surface-subtle: #fafaf9;
  --text: #1c1917;
  --muted: #78716c;
  --border: #e7e5e4;
  --border-strong: #d6d3d1;
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --primary-soft: #dbeafe;
  --success: #16a34a;
  --success-border: #86efac;
  --success-bg: #dcfce7;
  --success-text: #166534;
  --danger: #b91c1c;
  --danger-border: #fca5a5;
  --danger-bg: #fee2e2;
  --danger-text: #991b1b;
  --warning-bg: #fff7d6;
  --warning-border: #e9ca62;
  --warning-text: #4d3900;
  --nav-background: linear-gradient(135deg, #1f1f1f 0%, #34302d 100%);
  --nav-text: #ffffff;
  --nav-muted: #d6d3d1;
  --focus-ring: rgb(37 99 235 / 28%);
  --shadow: 0 8px 24px rgb(0 0 0 / 6%);
  --shadow-menu: 0 18px 40px rgb(28 25 23 / 12%);
  --radius-card: 18px;
  --radius-control: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --background: #1c1917;
    --surface: #292524;
    --surface-subtle: #1f1b19;
    --text: #fafaf9;
    --muted: #a8a29e;
    --border: #44403c;
    --border-strong: #57534e;
    --primary: #3b82f6;
    --primary-strong: #60a5fa;
    --primary-soft: #1e3a8a;
    --success: #22c55e;
    --success-border: #166534;
    --success-bg: #052e16;
    --success-text: #bbf7d0;
    --danger: #ef4444;
    --danger-border: #7f1d1d;
    --danger-bg: #450a0a;
    --danger-text: #fecaca;
    --warning-bg: #3a2d0a;
    --warning-border: #854d0e;
    --warning-text: #fde68a;
    --nav-background: linear-gradient(135deg, #1f1f1f 0%, #34302d 100%);
    --nav-muted: #d6d3d1;
    --focus-ring: rgb(147 197 253 / 36%);
  }
}

* {
  box-sizing: border-box;
}

body {
  background: var(--background);
  color: var(--text);
  font-family: var(--font-body);
  margin: 0;
}

main {
  margin: 0 auto;
  max-width: 680px;
  padding: 18px;
}

h1,
h2 {
  margin: 8px 0;
}

h1 {
  font-size: 1.75rem;
}

h2 {
  font-size: 1.2rem;
}

a {
  color: inherit;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
  margin-bottom: 16px;
  padding: 18px;
}

.muted,
.back,
.shortcut-hint {
  color: var(--muted);
}

.back {
  display: inline-block;
  margin-bottom: 12px;
  text-decoration: none;
}

.shortcut-hint {
  font-size: 0.95rem;
  margin: 12px 0 0;
  text-align: center;
}

.grid,
form,
.answer-details,
.question-review,
.answer-comparison,
.vocabulary-results,
.nav-menu-actions,
.nav-menu-links {
  display: grid;
}

.grid,
.answer-comparison,
.vocabulary-results,
.auth-links {
  gap: 10px;
}

form {
  gap: 12px;
  margin-top: 12px;
}

button,
input,
select {
  border-radius: var(--radius-control);
  font: inherit;
  width: 100%;
}

input,
select {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 14px 16px;
}

select {
  appearance: none;
  -webkit-appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, color-mix(in srgb, var(--text) 65%, transparent) 50%),
    linear-gradient(135deg, color-mix(in srgb, var(--text) 65%, transparent) 50%, transparent 50%);
  background-position:
    calc(100% - 26px) calc(50% - 3px),
    calc(100% - 18px) calc(50% - 3px);
  background-repeat: no-repeat;
  background-size: 8px 8px, 8px 8px;
  padding-right: 52px;
}

select::-ms-expand {
  display: none;
}

button,
.button-link,
.google-button {
  background: var(--primary);
  color: white;
  font-weight: 700;
}

button,
.button-link {
  border: 0;
  padding: 14px 16px;
}

button {
  cursor: pointer;
}

button.secondary {
  background: var(--border);
  color: var(--text);
}

button.danger {
  background: var(--danger);
  color: white;
  margin-top: 0.5rem;
}

a.secondary {
  background: var(--surface-subtle);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  color: var(--text);
  display: inline-block;
  padding: 12px 16px;
  text-align: center;
  text-decoration: none;
}

.button-link {
  border-radius: var(--radius-control);
  display: block;
  text-align: center;
  text-decoration: none;
  width: 100%;
}

.google-button {
  border-radius: 999px;
  display: inline-block;
  padding: 0.75rem 1rem;
  text-decoration: none;
}

.error,
.notice,
.demo-banner {
  border-radius: 8px;
  margin-bottom: 6px;
  padding: 10px 12px;
}

.error {
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-text);
}

.notice {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success-text);
}

.warning-notice {
  background: var(--warning-bg);
  border-color: var(--warning-border);
  color: var(--warning-text);
  margin-top: 1rem;
}

.warning-notice p {
  margin-bottom: 0;
}

.due-forecast {
  margin: 8px 0 12px;
}

.due-heatmap {
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  margin-top: 8px;
}

.due-heatmap-cell {
  align-items: center;
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
  display: grid;
  min-height: 52px;
  padding: 7px 4px;
  text-align: center;
}

.due-heatmap-count {
  color: var(--text);
  font-weight: 800;
  line-height: 1;
}

.due-heatmap-label {
  font-size: 0.76rem;
  line-height: 1.1;
}

.due-heatmap-cell.heat-1 {
  background: color-mix(in srgb, var(--primary) 12%, var(--surface));
  border-color: color-mix(in srgb, var(--primary) 28%, var(--border));
}

.due-heatmap-cell.heat-2 {
  background: color-mix(in srgb, var(--primary) 24%, var(--surface));
  border-color: color-mix(in srgb, var(--primary) 42%, var(--border));
}

.due-heatmap-cell.heat-3 {
  background: color-mix(in srgb, var(--primary) 44%, var(--surface));
  border-color: color-mix(in srgb, var(--primary) 60%, var(--border));
}

.due-heatmap-cell.heat-4 {
  background: var(--primary);
  border-color: var(--primary-strong);
  color: white;
}

.due-heatmap-cell.heat-4 .due-heatmap-count {
  color: white;
}

.demo-banner {
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  color: var(--warning-text);
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
}

.top-menu,
.home-status-row,
.home-actions {
  margin-left: auto;
  margin-right: auto;
  max-width: 680px;
  width: 100%;
}

.top-menu {
  margin-top: 1rem;
  margin-bottom: 0.75rem;
}

.nav-menu {
  position: relative;
  width: 100%;
}

.nav-menu summary {
  align-items: center;
  background: var(--nav-background);
  border: 1px solid rgb(255 255 255 / 18%);
  border-radius: 1.1rem;
  box-shadow: 0 14px 34px rgb(28 25 23 / 14%);
  color: var(--nav-text);
  cursor: pointer;
  display: flex;
  font-weight: 800;
  gap: 0.65rem;
  justify-content: flex-start;
  list-style: none;
  min-height: 3.25rem;
  padding: 0.85rem 1rem;
  user-select: none;
  width: 100%;
}

.nav-menu summary::-webkit-details-marker {
  display: none;
}

.nav-menu[open] summary {
  border-bottom-left-radius: 0.65rem;
  border-bottom-right-radius: 0.65rem;
}

.nav-menu[open] summary::after {
  content: "Close";
  margin-left: auto;
}

.nav-menu[open] summary.has-user::after {
  content: "";
}

.account-summary-user {
  color: var(--nav-muted);
  font-size: 0.9rem;
  font-weight: 700;
  margin-left: auto;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hamburger {
  display: grid;
  gap: 0.22rem;
  width: 1rem;
}

.hamburger span {
  background: currentColor;
  border-radius: 999px;
  display: block;
  height: 0.12rem;
}

.nav-menu-panel {
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-subtle) 100%);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: var(--shadow-menu);
  color: var(--text);
  margin-top: 0.65rem;
  padding: 1rem;
  width: 100%;
}

.nav-menu-panel h2 {
  font-size: 1rem;
  margin: 0 0 0.35rem;
}

.nav-menu-links,
.nav-menu-actions {
  gap: 0.6rem;
  grid-template-columns: 1fr;
}

.nav-menu-links {
  margin-top: 0.75rem;
}

.nav-menu-actions {
  margin-top: 0.85rem;
}

.nav-menu-actions button,
.nav-menu .google-button,
.nav-menu-links .secondary {
  display: block;
  text-align: center;
  width: 100%;
}

.nav-menu .oauth-block {
  margin: 0.85rem 0 0;
}

.account-status {
  align-items: center;
  display: flex;
  gap: 0.75rem;
  margin: 1rem 0;
}

.avatar {
  border-radius: 999px;
  height: 2.5rem;
  object-fit: cover;
  width: 2.5rem;
}

.oauth-block {
  margin: 0.75rem 0;
}

.home-status-row {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 0.25rem;
  margin-bottom: 1rem;
  padding: 0 0.25rem;
}

.home-actions {
  display: grid;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.review-overview {
  color: var(--muted);
  margin: -0.25rem 0 1rem;
}

.review-breakdown {
  color: var(--muted);
  margin: -0.35rem 0 1rem;
}

.review-breakdown summary {
  cursor: pointer;
  font-size: 0.92rem;
  list-style: none;
  width: fit-content;
}

.review-breakdown summary::-webkit-details-marker {
  display: none;
}

.review-breakdown summary::after {
  content: "Show details";
  font-size: 0.8rem;
  margin-left: 0.5rem;
}

.review-breakdown[open] summary::after {
  content: "Hide details";
}

.review-breakdown-panel {
  display: grid;
  gap: 0.35rem;
  grid-template-columns: 1fr;
  margin-top: 0.45rem;
}

.review-breakdown-panel span {
  display: block;
  font-size: 0.92rem;
}

.tense-picker {
  border: 0;
  margin: 0 0 1.25rem;
  padding: 0;
}

.tense-picker legend {
  font-weight: 700;
  margin-bottom: 0.45rem;
}

.tense-picker label {
  align-items: center;
  background: transparent;
  border: 0;
  color: inherit;
  cursor: pointer;
  display: flex;
  gap: 0.5rem;
  padding: 0.2rem 0;
}

.tense-picker label:hover {
  color: var(--primary-strong);
}

.tense-picker label:focus-within {
  border-radius: 0.35rem;
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.tense-all {
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.tense-option-grid {
  display: grid;
  gap: 0.2rem;
  grid-template-columns: 1fr;
}

.tense-picker input {
  accent-color: var(--primary);
  flex: 0 0 auto;
  height: 1rem;
  margin: 0;
  opacity: 1;
  pointer-events: auto;
  position: static;
  width: 1rem;
}

.tense-check,
.tense-check::after {
  display: none;
  content: none;
}

.tense-chip-text {
  align-items: baseline;
  display: flex;
  gap: 0.4rem;
  line-height: 1.25;
}

.tense-chip-text strong {
  color: inherit;
  font-size: 1rem;
  font-weight: 600;
}

.tense-chip-text small {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 400;
}

.vocabulary-results h2 {
  margin-bottom: 0;
}

.vocabulary-entry,
.answer-box,
.conjugation-details {
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  padding: 12px;
}

.vocabulary-entry p {
  margin: 6px 0 0;
}

.vocabulary-entry-header {
  align-items: center;
  display: flex;
  gap: 8px;
  justify-content: space-between;
}

.vocabulary-source {
  color: var(--muted);
  font-size: 0.85rem;
  white-space: nowrap;
}

.vocabulary-edit {
  border-top: 1px solid var(--border);
  margin-top: 12px;
  padding-top: 10px;
}

.vocabulary-edit summary,
.conjugation-details summary {
  cursor: pointer;
  font-weight: 700;
}

.vocabulary-edit form {
  margin-top: 10px;
}

.two-column-fields,
.auth-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.two-column-fields {
  gap: 12px;
}

.auth-links {
  margin-top: 10px;
}

.badge {
  background: var(--primary-soft);
  border-radius: 999px;
  color: var(--primary-strong);
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 10px;
  padding: 4px 10px;
}

.question-title {
  font-size: 1.25rem;
  line-height: 1.35;
}

.line {
  line-height: 1.4;
  margin: 8px 0;
}

.result {
  border-radius: var(--radius-control);
  margin-bottom: 12px;
  padding: 12px;
}

.answer-details {
  gap: 16px;
  margin: 18px 0;
}

.answer-details h2,
.answer-details h3 {
  margin: 0;
}

.question-review {
  gap: 8px;
}

.answer-comparison {
  margin: 0;
}

.answer-box-correct {
  border-color: var(--success);
  border-width: 3px;
}

.answer-box-incorrect {
  border-color: var(--danger);
  border-width: 3px;
}

.answer-comparison dt {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.answer-comparison dd {
  font-size: 1.1rem;
  margin: 0;
}

.explanation,
.srs-review {
  padding-left: 12px;
}

.explanation {
  border-left: 4px solid var(--primary);
}

.srs-review {
  border-left: 4px solid var(--success);
}

.explanation p,
.srs-review p {
  line-height: 1.45;
  margin: 6px 0 0;
}

.conjugation-details p {
  margin: 10px 0;
}

.table-scroll {
  overflow-x: auto;
}

.conjugation-table {
  border-collapse: collapse;
  min-width: 420px;
  width: 100%;
}

.conjugation-table th,
.conjugation-table td {
  border-bottom: 1px solid var(--border);
  padding: 10px 8px;
  text-align: left;
}

.conjugation-table th {
  color: var(--muted);
  font-size: 0.9rem;
}

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

.target-form {
  background: var(--primary-soft);
}

.correct {
  background: var(--success-bg);
  color: var(--success-text);
}

.incorrect {
  background: var(--danger-bg);
  color: var(--danger-text);
}

.note {
  margin-top: 8px;
}

.lead {
  font-size: 1.05rem;
  line-height: 1.55;
}

progress {
  accent-color: var(--primary);
  display: block;
  height: 0.7rem;
  margin: 0.8rem 0 1rem;
  width: 100%;
}

.curriculum-hero,
.lesson-hero {
  background:
    radial-gradient(circle at top right, color-mix(in srgb, var(--primary) 13%, transparent), transparent 45%),
    var(--surface);
}

.curriculum-hero > .back,
.lesson-hero > .back {
    margin-right: 0.4rem;
}

.curriculum-meta {
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.9rem;
  gap: 0.45rem 0.9rem;
  margin: 0.9rem 0;
}

.curriculum-meta span:not(:last-child)::after {
  content: "·";
  margin-left: 0.9rem;
}

.curriculum-next {
  margin-top: 1rem;
}

.unit-heading {
  align-items: flex-start;
  display: flex;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

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

.unit-heading p {
  line-height: 1.45;
  margin-top: 0.3rem;
}

.unit-number,
.lesson-status {
  align-items: center;
  background: var(--primary-soft);
  border-radius: 999px;
  color: var(--primary-strong);
  display: inline-flex;
  flex: 0 0 auto;
  font-weight: 800;
  justify-content: center;
}

.unit-number {
  height: 2rem;
  width: 2rem;
}

.lesson-list {
  border-top: 1px solid var(--border);
}

.lesson-row {
  align-items: center;
  border-bottom: 1px solid var(--border);
  display: grid;
  gap: 0.75rem;
  grid-template-columns: auto 1fr auto;
  padding: 0.9rem 0;
}

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

.lesson-status {
  height: 2.25rem;
  width: 2.25rem;
}

.lesson-complete .lesson-status {
  background: var(--success-bg);
  color: var(--success-text);
}

.lesson-mastered .lesson-status {
  background: var(--primary);
  color: white;
}

.lesson-locked {
  opacity: 0.62;
}

.lesson-locked .lesson-status {
  background: var(--surface-subtle);
  color: var(--muted);
  font-size: 0.8rem;
}

.lesson-copy h3,
.lesson-copy p {
  margin: 0;
}

.lesson-copy h3 {
  font-size: 1rem;
}

.lesson-copy p {
  line-height: 1.35;
  margin-top: 0.25rem;
}

.lesson-mastery {
  color: var(--muted);
  font-size: 0.83rem;
}

.lesson-link {
  align-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  display: inline-flex;
  font-size: 1.2rem;
  height: 2.25rem;
  justify-content: center;
  text-decoration: none;
  width: 2.25rem;
}

.lesson-link:hover {
  border-color: var(--primary);
  color: var(--primary-strong);
}

.lesson-eyebrow {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.pattern-callout,
.mastery-box,
.run-score {
  align-items: center;
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  padding: 0.8rem 0.9rem;
}

.pattern-callout {
  align-items: flex-start;
  flex-direction: column;
  margin-top: 1rem;
}

.pattern-callout span,
.mastery-box span {
  color: var(--muted);
  font-size: 0.85rem;
}

.pattern-callout strong {
  line-height: 1.4;
  white-space: pre-line;
}

.example-list,
.verb-chip-list,
.target-verb-list,
.activity-list {
  display: grid;
  gap: 0.7rem;
}

.lesson-example {
  background: var(--surface-subtle);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-control) var(--radius-control) 0;
  display: grid;
  gap: 0.25rem;
  padding: 0.8rem 0.9rem;
}

.lesson-example strong {
  font-size: 1.05rem;
}

.lesson-example span,
.lesson-example small {
  color: var(--muted);
}

.lesson-explanation {
  line-height: 1.55;
}

.reference-card > h2,
.reference-card > p {
  margin-bottom: 0.8rem;
}

.reference-table {
  border-collapse: separate;
  border-spacing: 0;
  min-width: 560px;
  width: 100%;
}

.reference-table th,
.reference-table td {
  border-bottom: 1px solid var(--border);
  padding: 0.75rem;
  text-align: left;
  vertical-align: top;
}

.reference-table thead th {
  background: var(--surface-subtle);
  color: var(--muted);
  font-size: 0.86rem;
}

.reference-table thead th:first-child {
  border-top-left-radius: 0.7rem;
}

.reference-table thead th:last-child {
  border-top-right-radius: 0.7rem;
}

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

.reference-table th strong,
.reference-table th small,
.reference-table td strong,
.reference-table td small {
  display: block;
}

.reference-table th small,
.reference-table td small {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 400;
  margin-top: 0.2rem;
}

.reference-table td strong {
  font-size: 1.05rem;
}

.reference-table .form-ending {
  color: var(--primary-strong);
  font-weight: 700;
}

.subject-reference-table td:last-child {
  font-weight: 700;
}

.hay-reference {
  background: var(--primary-soft);
  border-radius: var(--radius-control);
  display: grid;
  gap: 0.2rem;
  margin-top: 1rem;
  padding: 0.8rem 0.9rem;
}

.hay-reference strong {
  color: var(--primary-strong);
  font-size: 1.1rem;
}

.hay-reference small {
  color: var(--muted);
}

.target-verb-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 1.2rem;
}

.target-verb {
  background: var(--primary-soft);
  border-radius: var(--radius-control);
  display: grid;
  gap: 0.15rem;
  padding: 0.65rem 0.75rem;
}

.target-verb strong {
  color: var(--primary-strong);
}

.target-verb span {
  color: var(--muted);
  font-size: 0.85rem;
}

.verb-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.verb-chip-list span {
  background: var(--primary-soft);
  border-radius: 999px;
  color: var(--primary-strong);
  font-size: 0.88rem;
  font-weight: 700;
  padding: 0.35rem 0.65rem;
}

.activity-list {
  list-style: none;
  margin: 1rem 0;
  padding: 0;
}

.activity-list li {
  align-items: center;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 0.8rem;
  justify-content: space-between;
  padding: 0 0 0.7rem;
}

.activity-list li:last-child {
  border-bottom: 0;
}

.activity-list li div {
  display: grid;
  gap: 0.2rem;
}

.activity-list span,
.activity-list small {
  color: var(--muted);
}

.practice-header,
.run-score {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.practice-header .badge {
  margin-bottom: 0;
}

.curriculum-context {
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  font-size: 1.12rem;
  line-height: 1.5;
  padding: 1rem;
}

.choice-list {
  border: 0;
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
}

.choice-list legend {
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.choice-option {
  align-items: center;
  background: var(--surface-subtle);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  color: var(--text);
  cursor: pointer;
  display: flex;
  gap: 0.8rem;
  min-height: 52px;
  padding: 0.8rem 1rem;
  text-align: left;
}

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

.choice-option:hover,
.choice-option:focus-within,
.choice-option.keyboard-selected {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.choice-text {
  font-weight: 700;
}

.choice-number {
  align-items: center;
  background: var(--border);
  border-radius: 999px;
  color: var(--muted);
  display: inline-flex;
  flex: 0 0 auto;
  font-size: 0.82rem;
  height: 1.6rem;
  justify-content: center;
  width: 1.6rem;
}

.choice-option.keyboard-selected .choice-number,
.choice-option:has(input:checked) .choice-number {
  background: var(--primary);
  color: white;
}

.result-correct {
  background: var(--success-bg);
  color: var(--success-text);
}

.result-incorrect {
  background: var(--danger-bg);
  color: var(--danger-text);
}

.run-score {
  margin-top: 1rem;
}

.mastery-result {
  border-radius: var(--radius-control);
  margin: 1rem 0;
  padding: 1rem;
}

.mastery-result h2,
.mastery-result h3,
.mastery-result p {
  margin: 0;
}

.mastery-result h3 {
  margin-top: 1rem;
}

.mastery-result p {
  line-height: 1.5;
  margin-top: 0.4rem;
}

.mastery-passed {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success-text);
}

.mastery-retry {
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  color: var(--warning-text);
}

.quiz-end-actions {
  display: grid;
  gap: 0.7rem;
}

.retry-quiz-form {
  margin: 0;
}

@media (max-width: 520px) {
  main {
    padding: 14px;
  }

  .two-column-fields,
  .auth-links,
  .review-breakdown-panel {
    grid-template-columns: 1fr;
  }

  .account-summary-user {
    max-width: 52vw;
  }

  .curriculum-meta span:not(:last-child)::after {
    content: none;
  }

  .pattern-callout,
  .mastery-box {
    align-items: flex-start;
    flex-direction: column;
  }

  .target-verb-list {
    grid-template-columns: 1fr;
  }
}