@font-face {
  font-family: "Comic Neue";
  src: url("/assets/comic-neue-bold-v2.51-d757aaf0.woff2") format("woff2");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "Nunito";
  src: url("/assets/nunito-variable-v3.602-8d9cc785.woff2") format("woff2");
  font-style: normal;
  font-weight: 200 1000;
  font-display: swap;
}

:root {
  --paper: #fbf7ef;
  --surface: #ffffff;
  --ink: #1e2b45;
  --muted: #5e6678;
  --line: #e7e1d4;
  --line-soft: #efe9dc;
  --track: #ede6d6;

  --primary: #2f5bd3;
  --primary-dark: #2448ae;
  --primary-soft: #e8eeff;
  --primary-line: #c9d6f7;

  --sun: #f6c445;
  --sun-soft: #fdf1cc;
  --sun-ink: #6b4e00;
  --sun-deep-ink: #4a3600;

  --correct: #1a7a50;
  --correct-soft: #e3f4ea;
  --growing: #7a5600;
  --growing-soft: var(--sun-soft);
  --missed: #a8372d;
  --missed-soft: #fce9e6;
  --danger: #c8463a;
  --danger-dark: #a8372d;

  --math-ink: #9a4a0b;
  --math-soft: #ffeedd;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --font-ui: "Nunito", ui-rounded, "SF Pro Rounded", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-card: "Comic Neue", ui-rounded, "SF Pro Rounded", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  color: var(--ink);
  font-family: var(--font-ui);
  background: var(--paper);
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--paper);
}

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

button,
.button {
  touch-action: manipulation;
}

:where(a, button, input, textarea, select, summary, [tabindex]):focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.shell {
  width: min(1120px, calc(100% - 48px));
  margin-inline: auto;
}

.main-content {
  padding-block: 32px 72px;
}

.focus-mode .main-content {
  padding-block: 24px;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.header-inner {
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.wordmark {
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 700;
}

.site-nav a,
.link-button {
  border: 0;
  padding: 0;
  color: inherit;
  background: transparent;
  cursor: pointer;
  text-decoration: none;
}

.site-nav form,
.set-actions form,
.heading-actions form,
.practice-finish-actions form,
.danger-zone form {
  margin: 0;
}

.account-menu {
  position: relative;
}

.account-menu > summary {
  list-style: none;
}

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

.account-menu-button {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 2px solid transparent;
  border-radius: 50%;
  color: var(--sun-ink);
  background: var(--sun-soft);
  cursor: pointer;
  font-family: var(--font-card);
  font-size: 1.15rem;
  font-weight: 700;
}

.account-menu-button:hover,
.account-menu[open] .account-menu-button {
  border-color: var(--primary);
}

.account-menu-panel {
  position: absolute;
  z-index: 40;
  top: calc(100% + 8px);
  right: 0;
  display: flex;
  width: max-content;
  min-width: 220px;
  max-width: min(300px, calc(100vw - 32px));
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 8px;
  background: var(--surface);
  box-shadow: 0 12px 32px rgba(30, 43, 69, 0.12);
}

.account-menu-identity {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--line-soft);
  padding: 8px 10px 12px;
}

.account-menu-identity strong {
  color: var(--ink);
}

.account-menu-identity span {
  font-size: 0.85rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.account-menu-panel a,
.account-menu-panel .link-button {
  display: block;
  width: 100%;
  border-radius: var(--radius-sm);
  padding: 10px;
  color: var(--ink);
  text-align: left;
}

.account-menu-panel a:hover,
.account-menu-panel .link-button:hover {
  color: var(--ink);
  background: var(--paper);
}

.site-nav a:hover,
.link-button:hover,
.text-link:hover {
  color: var(--primary);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h2 {
  margin-bottom: 8px;
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.subhead {
  max-width: 650px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.65;
}

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

.page-heading {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 28px;
}

.heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
  flex-wrap: wrap;
}

.heading-actions,
.form-actions,
.practice-finish-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 700;
  list-style: none;
}

.breadcrumbs li + li::before {
  margin-right: 8px;
  content: "/";
}

.breadcrumbs a {
  color: inherit;
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--primary);
}

.breadcrumbs [aria-current="page"] {
  color: var(--ink);
}

.learner-title {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.learner-title h1 {
  overflow-wrap: anywhere;
}

.learner-avatar,
.reader-avatar {
  display: grid;
  flex-shrink: 0;
  place-items: center;
  border-radius: var(--radius-md);
  color: var(--sun-ink);
  background: var(--sun-soft);
  font-family: var(--font-card);
  font-weight: 700;
}

.learner-avatar {
  width: 56px;
  height: 56px;
  font-size: 1.9rem;
}

.learner-tabs {
  display: flex;
  gap: 28px;
  border-bottom: 1px solid var(--line);
  font-weight: 800;
}

.learner-tabs a {
  margin-bottom: -1px;
  border-bottom: 3px solid transparent;
  padding: 10px 0 12px;
  color: var(--muted);
  text-decoration: none;
}

.learner-tabs a:hover {
  color: var(--ink);
}

.learner-tabs a[aria-current="page"] {
  border-bottom-color: var(--primary);
  color: var(--ink);
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: 0 20px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition: background 150ms ease, border-color 150ms ease, color 150ms ease;
}

.button.primary {
  color: white;
  background: var(--primary);
}

.button.primary:hover {
  background: var(--primary-dark);
}

.button.secondary {
  border-color: var(--line);
  color: var(--ink);
  background: var(--surface);
}

.button.secondary:hover {
  border-color: var(--primary-line);
  background: var(--primary-soft);
}

.button.quiet {
  color: var(--muted);
  background: transparent;
}

.button.quiet:hover {
  color: var(--ink);
}

.button.danger {
  color: white;
  background: var(--danger);
}

.button.danger:hover {
  background: var(--danger-dark);
}

.text-link {
  color: var(--primary-dark);
  font-weight: 800;
  text-decoration: none;
}

.kind-tag {
  display: inline-block;
  border-radius: 8px;
  padding: 3px 8px;
  color: var(--primary-dark);
  background: var(--primary-soft);
  font-size: 0.8rem;
  font-weight: 800;
  line-height: 1.3;
}

.kind-tag.math {
  color: var(--math-ink);
  background: var(--math-soft);
}

.card-grid,
.set-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: 20px;
}

.reader-card,
.set-card,
.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.reader-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 22px 24px;
  text-decoration: none;
  transition: border-color 150ms ease;
}

.reader-card:hover {
  border-color: var(--primary-line);
}

.reader-card h2,
.reader-card p {
  margin: 0;
}

.reader-card p {
  margin-top: 4px;
  color: var(--muted);
}

.reader-avatar {
  width: 56px;
  height: 56px;
  font-size: 1.9rem;
}

.card-arrow {
  color: var(--primary);
}

.set-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  padding: 24px;
}

.set-card h2 {
  margin: 10px 0 8px;
}

.set-card h2 a {
  text-decoration: none;
}

.set-card h2 a:hover {
  color: var(--primary);
}

.set-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.card-preview {
  margin: 0;
  color: var(--muted);
  font-size: 1.1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.5;
}

.card-preview.words {
  font-family: var(--font-card);
  font-size: 1.2rem;
}

.set-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.set-actions .button {
  min-height: 44px;
}

.empty-state {
  max-width: 720px;
  margin: 48px auto;
  border: 2px dashed var(--line);
  border-radius: var(--radius-lg);
  padding: 56px 36px;
  text-align: center;
  background: var(--surface);
}

.empty-state.compact {
  margin-block: 8px 64px;
}

.empty-state p {
  max-width: 480px;
  margin: 0 auto 24px;
  color: var(--muted);
  line-height: 1.6;
}

.empty-sparkle {
  display: grid;
  width: 68px;
  height: 68px;
  place-items: center;
  margin: 0 auto 20px;
  border-radius: var(--radius-md);
  color: var(--sun-ink);
  background: var(--sun-soft);
  font-family: var(--font-card);
  font-size: 1.5rem;
  font-weight: 700;
  transform: rotate(-4deg);
}

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin-bottom: 16px;
}

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

.session-list {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.history-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
}

.session-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 22px;
  text-decoration: none;
}

.session-row:hover {
  background: var(--paper);
}

.session-row + .session-row {
  border-top: 1px solid var(--line-soft);
}

.session-row > div {
  display: flex;
  flex-direction: column;
  min-width: 0;
  gap: 4px;
}

.session-row strong {
  overflow-wrap: anywhere;
}

.session-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 10px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
}

.session-meta > * {
  white-space: nowrap;
}

.score-pill {
  flex-shrink: 0;
  min-width: 64px;
  border-radius: 999px;
  padding: 8px 12px;
  text-align: center;
  font-weight: 800;
}

.score-pill.great,
.score-ring.great {
  color: var(--correct);
  background: var(--correct-soft);
}

.score-pill.growing,
.score-ring.growing {
  color: var(--growing);
  background: var(--growing-soft);
}

.score-pill.practice,
.score-ring.practice {
  color: var(--missed);
  background: var(--missed-soft);
}

.narrow-page {
  max-width: 660px;
}

.stacked-form {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px;
  background: var(--surface);
}

.page-heading + .stacked-form {
  margin-top: 0;
}

.field + .field {
  margin-top: 24px;
}

.field label {
  display: block;
  margin-bottom: 8px;
  font-weight: 800;
}

.field input,
.field textarea,
.auth-card input {
  width: 100%;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 13px 15px;
  color: var(--ink);
  outline: none;
  background: var(--surface);
  transition: border 150ms ease, box-shadow 150ms ease;
}

.field textarea {
  min-height: 240px;
  resize: vertical;
  line-height: 1.7;
}

.field input:focus,
.field textarea:focus,
.auth-card input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
}

.field-hint {
  margin: 8px 2px 0;
  color: var(--muted);
  font-size: 0.87rem;
  line-height: 1.5;
}

.form-actions {
  margin-top: 28px;
}

.form-errors {
  margin-bottom: 24px;
  border-radius: var(--radius-md);
  padding: 16px 18px;
  color: var(--missed);
  background: var(--missed-soft);
}

.form-errors p {
  margin-bottom: 6px;
  font-weight: 800;
}

.form-errors ul {
  margin-block: 0;
  padding-left: 20px;
}

.form-section {
  min-width: 0;
  margin: 28px 0 0;
  border: 0;
  border-top: 1px solid var(--line);
  padding: 20px 0 0;
}

.form-section legend {
  float: left;
  width: 100%;
  margin-bottom: 16px;
  padding: 0;
  font-size: 1.1rem;
  font-weight: 800;
}

.form-section legend + * {
  clear: both;
}

.form-section + .field {
  margin-top: 28px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.danger-zone {
  margin-top: 40px;
  border-top: 1px solid var(--line);
  padding-top: 28px;
}

.danger-zone p {
  color: var(--muted);
}

.panel {
  padding: 28px;
}

.panel + .panel {
  margin-top: 24px;
}

.word-cloud {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.word-cloud span {
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  color: var(--ink);
  background: var(--paper);
  font-size: 1.08rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.word-cloud.words span {
  font-family: var(--font-card);
  font-size: 1.25rem;
  font-weight: 700;
}

.set-title {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.set-title h1 {
  overflow-wrap: anywhere;
}

.practice-setup {
  display: grid;
  grid-template-columns: minmax(180px, 0.7fr) minmax(0, 1.5fr);
  gap: 36px;
}

.practice-setup-heading h2,
.practice-option-group {
  margin-bottom: 0;
}

.practice-setup-form {
  display: grid;
  gap: 24px;
}

.practice-setup-form > .button {
  justify-self: start;
}

.practice-option-group {
  min-width: 0;
  border: 0;
  padding: 0;
}

.practice-option-group legend {
  margin-bottom: 10px;
  font-weight: 800;
}

.practice-mode-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.practice-mode-option,
.practice-size-option {
  position: relative;
  cursor: pointer;
}

.practice-mode-option input,
.practice-size-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.practice-mode-option > span {
  display: flex;
  min-height: 88px;
  flex-direction: column;
  justify-content: center;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px;
  background: var(--surface);
  transition: border-color 150ms ease, background 150ms ease;
}

.practice-mode-option small {
  margin-top: 5px;
  color: var(--muted);
  line-height: 1.4;
}

.practice-mode-option:has(input:checked) > span,
.practice-size-option:has(input:checked) > span {
  border-color: var(--primary);
  color: var(--primary-dark);
  background: var(--primary-soft);
}

.practice-mode-option:has(input:focus-visible) > span,
.practice-size-option:has(input:focus-visible) > span {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

.practice-size-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.practice-size-option > span {
  display: grid;
  min-width: 54px;
  min-height: 44px;
  place-items: center;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0 14px;
  background: var(--surface);
  font-weight: 800;
  transition: border-color 150ms ease, background 150ms ease;
}

.set-type {
  margin: 24px 0 0;
}

.practice-page {
  display: flex;
  max-width: 960px;
  min-height: calc(100dvh - 48px);
  flex-direction: column;
  gap: 20px;
  margin: 0 auto;
  text-align: center;
}

.practice-page.complete {
  justify-content: center;
  gap: 0;
}

.practice-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  text-align: left;
}

.practice-set-label {
  color: var(--muted);
  font-weight: 800;
}

.practice-count {
  font-size: 1.1rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.practice-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.exit-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 4px;
  border-radius: 12px;
  padding: 0 12px 0 4px;
  color: var(--muted);
  font-weight: 800;
  text-decoration: none;
}

.exit-link:hover {
  color: var(--ink);
}

.sound-toggle {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 14px 0 12px;
  color: var(--muted);
  background: var(--surface);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 800;
  transition: border-color 150ms ease, background 150ms ease;
}

.sound-toggle:hover {
  border-color: var(--primary-line);
  background: var(--primary-soft);
}

.sound-toggle .sound-off-icon,
.sound-toggle[aria-pressed="true"] .sound-on-icon {
  display: none;
}

.sound-toggle[aria-pressed="true"] .sound-off-icon {
  display: block;
}

.progress-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--track);
}

.progress-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--primary);
  transition: width 260ms ease;
}

.word-stage {
  display: flex;
  min-height: 280px;
  flex: 1 1 auto;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  border: 1px solid var(--line);
  border-radius: 32px;
  padding: 40px;
  background: var(--surface);
  box-shadow: 0 2px 0 var(--line);
}

.practice-page .practice-card {
  font-size: clamp(4rem, 12vw, 8rem);
  font-weight: 800;
  line-height: 1;
  overflow-wrap: anywhere;
}

.practice-page .word-card {
  font-family: var(--font-card);
  font-size: clamp(4.3rem, 13vw, 9rem);
  font-weight: 700;
  letter-spacing: 0.015em;
}

.practice-page .math-card {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.read-aloud-button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--primary-line);
  border-radius: 999px;
  padding: 0 18px;
  color: var(--primary-dark);
  background: var(--primary-soft);
  cursor: pointer;
  font-size: 0.94rem;
  font-weight: 800;
  transition: border-color 150ms ease, background 150ms ease;
}

.read-aloud-button:hover {
  border-color: var(--primary);
}

.read-aloud-button[hidden] {
  display: none;
}

.answer-grid {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.answer-button {
  display: inline-flex;
  width: 260px;
  height: 76px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 0;
  border-radius: 22px;
  padding: 0 20px;
  font-size: 1.35rem;
  font-weight: 800;
  cursor: pointer;
  transition: background 150ms ease, filter 150ms ease;
}

.answer-button.incorrect {
  color: var(--missed);
  background: var(--missed-soft);
}

.answer-button.incorrect:hover {
  filter: brightness(0.97);
}

.answer-button.correct {
  color: white;
  background: var(--correct);
}

.answer-button.correct:hover {
  filter: brightness(1.08);
}

.practice-complete-label {
  margin-bottom: 8px;
  color: var(--muted);
  font-weight: 800;
}

.score-ring {
  display: flex;
  width: 168px;
  height: 168px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 28px auto;
  border-radius: 50%;
}

.score-ring strong {
  font-size: 3.2rem;
  line-height: 1;
}

.score-ring span {
  margin-top: 6px;
  font-weight: 700;
}

.result-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-bottom: 28px;
  text-align: left;
}

.result-word {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 1.1rem;
  font-weight: 800;
}

.result-word.words > span:first-child {
  font-family: var(--font-card);
  font-size: 1.3rem;
  font-weight: 700;
}

.result-word.correct {
  color: var(--correct);
  background: var(--correct-soft);
}

.result-word.incorrect {
  color: var(--missed);
  background: var(--missed-soft);
}

.practice-finish-actions {
  justify-content: center;
}

.reward {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  animation: reward-fade 1.1s ease forwards;
}

.reward-message {
  display: flex;
  align-items: center;
  gap: 10px;
  border-radius: 20px;
  padding: 16px 26px;
  color: var(--sun-deep-ink);
  background: var(--sun);
  box-shadow: 0 18px 50px rgba(74, 54, 0, 0.22);
  font-size: 1.6rem;
  font-weight: 800;
  animation: reward-pop 650ms cubic-bezier(0.2, 1.4, 0.4, 1) forwards;
}

.confetti {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 20px;
  border-radius: 3px;
  background: var(--sun);
  animation: confetti-burst 900ms ease-out forwards;
}

.confetti:nth-of-type(3n) {
  background: var(--primary);
}

.confetti:nth-of-type(3n + 1) {
  background: #3fae7c;
}

.confetti-1 { --x: -190px; --y: -140px; --r: 80deg; }
.confetti-2 { --x: -120px; --y: -210px; --r: -95deg; }
.confetti-3 { --x: -35px; --y: -180px; --r: 150deg; }
.confetti-4 { --x: 80px; --y: -210px; --r: -130deg; }
.confetti-5 { --x: 180px; --y: -130px; --r: 190deg; }
.confetti-6 { --x: 185px; --y: 90px; --r: -160deg; }
.confetti-7 { --x: 45px; --y: 170px; --r: 210deg; }
.confetti-8 { --x: -150px; --y: 120px; --r: -220deg; }

@keyframes reward-pop {
  0% { opacity: 0; transform: scale(0.5) rotate(-6deg); }
  60% { opacity: 1; transform: scale(1.08) rotate(2deg); }
  100% { opacity: 1; transform: scale(1) rotate(0); }
}

@keyframes reward-fade {
  0%, 70% { opacity: 1; }
  100% { opacity: 0; visibility: hidden; }
}

@keyframes confetti-burst {
  0% { opacity: 1; transform: translate(-50%, -50%) scale(0.2); }
  100% { opacity: 0; transform: translate(var(--x), var(--y)) rotate(var(--r)); }
}

.trend-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.trend-filters {
  display: inline-flex;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 4px;
  background: var(--surface);
}

.trend-filters a {
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 800;
  text-decoration: none;
}

.trend-filters a:hover {
  color: var(--ink);
}

.trend-filters a.active {
  color: white;
  background: var(--primary);
}

.trend-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.75fr);
  align-items: start;
  gap: 24px;
}

.focus-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 12px;
  background: var(--surface);
}

.focus-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-radius: 14px;
  padding: 12px 14px;
}

.focus-row-text {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.focus-row-text strong {
  font-size: 1.15rem;
  overflow-wrap: anywhere;
}

.focus-row-text span {
  flex-shrink: 0;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.accuracy-bar {
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--line-soft);
}

.accuracy-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--missed);
}

.accuracy-bar.growing span {
  background: var(--growing);
}

.all-clear {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  color: var(--muted);
  text-align: center;
  background: var(--surface);
}

.all-clear svg {
  color: var(--sun);
}

.flash-wrap {
  position: relative;
  z-index: 30;
}

.flash {
  margin-top: 18px;
  border-radius: var(--radius-md);
  padding: 13px 16px;
  font-weight: 700;
}

.flash.notice {
  color: var(--correct);
  background: var(--correct-soft);
}

.flash.alert {
  color: var(--missed);
  background: var(--missed-soft);
}

.auth-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 36px 20px;
}

.auth-card {
  width: min(440px, 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px;
  background: var(--surface);
}

.main-content > .auth-card {
  margin-inline: auto;
}

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

.member-row {
  display: flex;
  align-items: center;
  gap: 12px 16px;
  flex-wrap: wrap;
  padding: 14px 0;
}

.member-row + .member-row {
  border-top: 1px solid var(--line-soft);
}

.member-info {
  display: flex;
  min-width: 0;
  flex: 1 1 220px;
  flex-direction: column;
  gap: 2px;
}

.member-info strong {
  overflow-wrap: anywhere;
}

.member-info > span {
  color: var(--muted);
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.member-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.member-actions form {
  margin: 0;
}

.role-tag {
  border-radius: 8px;
  padding: 3px 8px;
  color: var(--muted);
  background: var(--paper);
  font-size: 0.8rem;
  font-weight: 800;
}

.role-tag.admin {
  color: var(--primary-dark);
  background: var(--primary-soft);
}

.button.compact {
  min-height: 40px;
  padding: 0 14px;
  font-size: 0.9rem;
}

.invite-form {
  margin-top: 16px;
}

.auth-brand {
  display: flex;
  justify-content: center;
  margin-bottom: 28px;
}

.auth-card h1 {
  margin-bottom: 8px;
  font-size: 2rem;
  text-align: center;
}

.auth-intro {
  margin-bottom: 28px;
  color: var(--muted);
  text-align: center;
}

.auth-card .field {
  margin-top: 18px;
}

.auth-card .button {
  width: 100%;
  margin-top: 24px;
}

.auth-options {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.9rem;
}

.auth-options input {
  width: auto;
}

.auth-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 24px;
  color: var(--primary-dark);
  font-size: 0.9rem;
  font-weight: 700;
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 32px, 1120px);
  }

  .site-nav {
    gap: 18px;
  }

  .main-content {
    padding-block: 24px 56px;
  }

  .heading-row {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .heading-actions,
  .heading-actions .button,
  .heading-actions form,
  .heading-actions form .button {
    width: 100%;
  }

  .practice-setup,
  .practice-mode-options {
    grid-template-columns: 1fr;
  }

  .practice-setup {
    gap: 24px;
  }

  .practice-setup-form > .button {
    width: 100%;
  }

  .practice-header {
    grid-template-columns: 1fr auto;
  }

  .practice-set-label {
    display: none;
  }

  .word-stage {
    padding-inline: 20px;
  }

  .answer-grid {
    gap: 12px;
  }

  .answer-button {
    width: auto;
    flex: 1;
  }

  .stacked-form,
  .panel,
  .auth-card {
    padding: 24px;
  }
}

@media (max-width: 359px) {
  .site-header .wordmark {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}