:root {
  --app-content-width: 1200px;
  --app-shell-width: 1280px;
  --accent: oklch(0.52 0.19 262);
  --accent-dark: oklch(0.42 0.19 262);
  --accent-soft: oklch(0.95 0.03 262);
  --accent-line: oklch(0.88 0.05 262);
  --ink: #16181d;
  --muted: #5b6170;
  --faint: #8a90a0;
  --line: #e7e9ee;
  --line-soft: #eef0f4;
  --canvas: #f7f8fa;
  --white: #fff;
  --success: #1d9e55;
  --success-soft: #e8f7ee;
  --danger: #d64545;
  --danger-soft: #fff0f0;
  --warning: #e08600;
  --shadow: 0 14px 40px rgb(22 24 29 / 8%);
}

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

html {
  min-width: 320px;
  overflow-y: scroll;
  scrollbar-gutter: stable;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: "Golos Text", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

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

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

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 35%, transparent);
  outline-offset: 3px;
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.brand__mark {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 9px;
  background: var(--accent);
  color: var(--white);
  font-size: 15px;
  font-weight: 800;
}

.brand__name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.app-header {
  position: sticky;
  z-index: 50;
  top: 0;
  display: flex;
  width: min(100%, var(--app-shell-width));
  min-height: 69px;
  align-items: center;
  margin: 0 auto;
  padding: 15px 40px;
  border-bottom: 1px solid var(--line-soft);
  background: rgb(255 255 255 / 96%);
  backdrop-filter: blur(14px);
}

.app-header__inner {
  display: flex;
  width: min(100%, var(--app-content-width));
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
}

.app-header__left,
.app-header__meta,
.main-nav,
.stat-pill {
  display: flex;
  align-items: center;
}

.app-header__left {
  gap: 36px;
}

.main-nav {
  gap: 5px;
  font-size: 14px;
  font-weight: 600;
}

.main-nav a {
  padding: 9px 13px;
  border-radius: 9px;
  color: var(--muted);
  transition: background-color 160ms ease, color 160ms ease;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.app-header__meta {
  gap: 18px;
}

.stat-pill {
  gap: 7px;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.stat-pill--streak,
.stat-pill--experience {
  position: relative;
  border-radius: 8px;
  outline: none;
}

.stat-pill--streak {
  color: var(--warning);
  cursor: help;
}

.stat-pill--experience {
  cursor: pointer;
  transition: color 140ms ease;
}

.stat-pill--experience:hover {
  color: var(--accent);
}

.stat-pill--streak:focus-visible,
.stat-pill--experience:focus-visible {
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.stat-tooltip {
  position: absolute;
  z-index: 80;
  top: calc(100% + 14px);
  right: 0;
  width: min(310px, calc(100vw - 32px));
  padding: 11px 13px;
  border-radius: 10px;
  background: var(--ink);
  box-shadow: 0 12px 32px rgb(22 24 29 / 18%);
  color: var(--white);
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.45;
  opacity: 0;
  pointer-events: none;
  text-align: left;
  transform: translateY(-4px);
  transition: opacity 140ms ease, transform 140ms ease, visibility 140ms ease;
  visibility: hidden;
  white-space: normal;
}

.stat-tooltip::before {
  position: absolute;
  right: 18px;
  bottom: 100%;
  width: 0;
  height: 0;
  border-right: 6px solid transparent;
  border-bottom: 7px solid var(--ink);
  border-left: 6px solid transparent;
  content: '';
}

.stat-pill--streak:hover .stat-tooltip,
.stat-pill--streak:focus-visible .stat-tooltip,
.stat-pill--experience:hover .stat-tooltip,
.stat-pill--experience:focus-visible .stat-tooltip {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

.stat-pill--experience .stat-tooltip {
  pointer-events: auto;
}

.stat-tooltip__link {
  display: inline-block;
  margin-left: 3px;
  color: #b9c8ff;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.stat-pill__fire {
  width: 10px;
  height: 14px;
  background: #f5a623;
  clip-path: polygon(50% 0, 100% 60%, 80% 100%, 20% 100%, 0 60%);
}

.stat-pill__xp {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--accent);
}

.experience-page {
  display: flex;
  width: 100%;
  flex-direction: column;
  gap: 20px;
}

.experience-breadcrumb {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--faint);
  font-size: 13.5px;
}

.experience-breadcrumb a:hover {
  color: var(--accent-dark);
}

.experience-breadcrumb [aria-current="page"] {
  color: var(--ink);
  font-weight: 700;
}

.experience-hero {
  position: relative;
  overflow: hidden;
  padding: 32px 36px;
}

.experience-hero::after {
  position: absolute;
  top: -64px;
  right: -54px;
  width: 210px;
  height: 210px;
  border-radius: 50%;
  background: var(--accent-soft);
  content: '';
}

.experience-hero > * {
  position: relative;
  z-index: 1;
}

.experience-hero__eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.experience-hero h1 {
  margin: 0;
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1.15;
}

.experience-hero p {
  max-width: 650px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.experience-hero__summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-top: 24px;
}

.experience-hero__summary strong {
  color: var(--accent-dark);
  font-size: 30px;
  font-weight: 800;
}

.experience-hero__summary span {
  color: var(--muted);
  font-size: 13.5px;
}

.experience-section {
  padding: 28px 32px;
}

.experience-section h2 {
  margin: 0;
  font-size: 19px;
}

.experience-section > p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.6;
}

.experience-reward-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.experience-reward {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: 13px;
  background: var(--canvas);
}

.experience-reward__icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 15px;
  font-weight: 800;
}

.experience-reward strong,
.experience-reward span {
  display: block;
}

.experience-reward__copy strong {
  margin-bottom: 3px;
  font-size: 14px;
}

.experience-reward__copy span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.experience-reward__value {
  color: var(--accent-dark);
  font-size: 13.5px;
  font-weight: 800;
  white-space: nowrap;
}

.experience-levels {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.experience-level {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
  padding: 13px 16px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
}

.experience-level--current {
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

.experience-level__number {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 50%;
  background: var(--canvas);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.experience-level--current .experience-level__number {
  background: var(--accent);
  color: var(--white);
}

.experience-level__copy strong,
.experience-level__copy span {
  display: block;
}

.experience-level__copy strong {
  font-size: 14px;
}

.experience-level__copy span {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.experience-level__range {
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 700;
  white-space: nowrap;
}

.experience-rules {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.experience-rule {
  padding: 16px;
  border-radius: 12px;
  background: var(--canvas);
}

.experience-rule strong {
  display: block;
  margin-bottom: 5px;
  font-size: 13.5px;
}

.experience-rule span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.experience-demo-note {
  display: flex;
  gap: 12px;
  padding: 18px 20px;
  border: 1px solid var(--accent-line);
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 12.5px;
  line-height: 1.55;
}

.experience-demo-note strong {
  flex: none;
}

.info-page {
  display: flex;
  width: 100%;
  flex-direction: column;
  gap: 20px;
}

.info-breadcrumb {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--faint);
  font-size: 13.5px;
}

.info-breadcrumb a:hover,
.info-breadcrumb [aria-current="page"] {
  color: var(--ink);
}

.info-breadcrumb [aria-current="page"] {
  font-weight: 700;
}

.info-hero {
  position: relative;
  overflow: hidden;
  padding: 34px 38px;
}

.info-hero::after {
  position: absolute;
  top: -105px;
  right: -50px;
  width: 270px;
  height: 270px;
  border-radius: 50%;
  background: var(--accent-soft);
  content: '';
}

.info-hero > * {
  position: relative;
  z-index: 1;
}

.info-hero__eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.info-hero h1 {
  margin: 0;
  font-size: clamp(27px, 4vw, 38px);
  line-height: 1.15;
}

.info-hero p {
  max-width: 760px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.info-section,
.info-document {
  padding: 28px 32px;
}

.info-section h2,
.info-document h2,
.info-cta h2 {
  margin: 0;
  font-size: 18px;
}

.info-section > p,
.info-cta p,
.info-document p {
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.65;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.language-levels-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.language-level-card {
  padding: 18px;
  border: 1px solid var(--line-soft);
  border-radius: 13px;
  background: var(--canvas);
}

.language-level-card__code {
  color: var(--accent-dark);
  font-size: 20px;
}

.language-level-card h3 {
  margin: 7px 0 0;
  font-size: 14px;
}

.language-level-card p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.faq-item {
  border: 1px solid var(--line-soft);
  border-radius: 13px;
  background: var(--canvas);
}

.faq-item summary {
  position: relative;
  padding: 17px 48px 17px 18px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  position: absolute;
  top: 50%;
  right: 18px;
  color: var(--accent-dark);
  content: '+';
  font-size: 20px;
  font-weight: 500;
  transform: translateY(-50%);
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-item__answer {
  padding: 0 48px 18px 18px;
}

.faq-item__answer p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.faq-item__answer .text-link {
  display: inline-block;
  margin-top: 9px;
}

.info-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 28px;
}

.info-cta p {
  max-width: 720px;
  margin: 6px 0 0;
}

.info-cta .button {
  flex: none;
}

.info-support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.support-contact {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
}

.support-contact__icon {
  display: grid;
  width: 46px;
  height: 46px;
  margin-bottom: 16px;
  place-items: center;
  border-radius: 13px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 20px;
  font-weight: 800;
}

.support-contact p {
  margin: 8px 0 20px;
}

.info-list {
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.65;
}

.info-list li + li {
  margin-top: 7px;
}

.info-notice {
  display: flex;
  gap: 12px;
  padding: 18px 20px;
  border: 1px solid var(--accent-line);
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 12.5px;
  line-height: 1.55;
}

.info-notice strong {
  flex: none;
}

.info-document {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.info-document__section {
  padding: 24px 0;
}

.info-document__section:first-child {
  padding-top: 0;
}

.info-document__section:last-child {
  padding-bottom: 0;
}

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

.info-document__section p {
  max-width: 920px;
  margin: 9px 0 0;
}

/* Textbook */
.textbook-page {
  display: grid;
  width: 100%;
  gap: 20px;
}

.textbook-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 36px;
  overflow: hidden;
  padding: 36px 38px;
  background:
    radial-gradient(circle at 92% 8%, var(--accent-soft) 0, var(--accent-soft) 17%, transparent 17.5%),
    var(--white);
}

.textbook-hero__copy {
  max-width: 760px;
}

.textbook-eyebrow {
  display: block;
  margin-bottom: 9px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.textbook-hero h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.12;
}

.textbook-hero__copy p {
  max-width: 720px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.textbook-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(84px, auto));
  gap: 10px;
  margin: 0;
}

.textbook-hero__stat {
  min-width: 88px;
  padding: 13px 14px;
  border: 1px solid var(--accent-line);
  border-radius: 13px;
  background: rgb(255 255 255 / 88%);
}

.textbook-hero__stat dt {
  color: var(--accent-dark);
  font-size: 18px;
  font-weight: 800;
  white-space: nowrap;
}

.textbook-hero__stat dd {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.textbook-controls {
  display: grid;
  grid-template-columns: minmax(240px, 340px) minmax(0, 1fr);
  align-items: end;
  gap: 18px;
  padding: 18px 20px;
}

.textbook-search {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.textbook-search input {
  width: 100%;
  height: 43px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--canvas);
  color: var(--ink);
  outline: none;
}

.textbook-search input:focus {
  border-color: var(--accent);
  background: var(--white);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent);
}

.textbook-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
}

.textbook-filter {
  min-height: 38px;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
}

.textbook-filter:hover,
.textbook-filter.is-active {
  border-color: var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.textbook-layout {
  display: grid;
  grid-template-columns: minmax(270px, 330px) minmax(0, 1fr);
  align-items: start;
  gap: 20px;
}

.textbook-toc {
  position: sticky;
  top: 92px;
  overflow: hidden;
  max-height: calc(100vh - 116px);
}

.textbook-toc__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 19px 20px;
  border-bottom: 1px solid var(--line-soft);
}

.textbook-toc__head h2 {
  margin: 0;
  font-size: 17px;
}

.textbook-toc__head span {
  color: var(--faint);
  font-size: 11px;
  font-weight: 700;
}

.textbook-toc__body {
  max-height: calc(100vh - 178px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 10px;
  scrollbar-width: thin;
}

.textbook-toc__group + .textbook-toc__group {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.textbook-toc__group h3 {
  margin: 0;
  padding: 5px 8px 8px;
  color: var(--accent-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.textbook-toc__item {
  display: grid;
  width: 100%;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  padding: 9px 10px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  cursor: pointer;
}

.textbook-toc__item:hover {
  background: var(--canvas);
  color: var(--ink);
}

.textbook-toc__item.is-active {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.textbook-toc__number {
  display: grid;
  width: 32px;
  height: 28px;
  place-items: center;
  border-radius: 8px;
  background: var(--canvas);
  color: var(--faint);
  font-size: 10px;
  font-weight: 800;
}

.textbook-toc__item.is-active .textbook-toc__number {
  background: var(--accent);
  color: var(--white);
}

.textbook-toc__copy {
  display: grid;
  min-width: 0;
  gap: 3px;
}

.textbook-toc__copy strong {
  overflow: hidden;
  font-size: 12.5px;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.textbook-toc__copy small {
  color: var(--faint);
  font-size: 10.5px;
}

.textbook-toc__empty {
  display: grid;
  gap: 9px;
  padding: 20px 12px;
  text-align: center;
}

.textbook-toc__empty p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.textbook-toc__empty .button {
  justify-self: center;
}

.textbook-article-slot {
  min-width: 0;
}

.textbook-topic {
  overflow: hidden;
  padding: 0;
  scroll-margin-top: 92px;
}

.textbook-topic__head {
  padding: 32px 36px 28px;
  border-bottom: 1px solid var(--accent-line);
  background: linear-gradient(135deg, var(--accent-soft), var(--white) 68%);
}

.textbook-topic__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 13px;
  color: var(--faint);
  font-size: 11px;
  font-weight: 700;
}

.textbook-level-badge {
  display: inline-grid;
  min-width: 37px;
  height: 26px;
  place-items: center;
  padding: 0 8px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--white);
  font-size: 11px;
  font-weight: 800;
}

.textbook-topic__head h1 {
  margin: 17px 0 0;
  font-size: clamp(25px, 4vw, 36px);
  line-height: 1.18;
}

.textbook-topic__summary {
  max-width: 760px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.textbook-topic__section {
  padding: 27px 36px;
}

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

.textbook-topic__section h2 {
  margin: 0 0 12px;
  font-size: 17px;
}

.textbook-topic__section > p {
  max-width: 820px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.textbook-topic__section > p + p {
  margin-top: 12px;
}

.textbook-formula {
  margin: 0;
  padding: 18px 20px;
  overflow-x: auto;
  border: 1px solid var(--accent-line);
  border-radius: 13px;
  background: var(--accent-soft);
}

.textbook-formula code {
  color: var(--accent-dark);
  font-family: "Golos Text", system-ui, sans-serif;
  font-size: 14px;
  font-weight: 750;
  line-height: 1.7;
  white-space: pre-wrap;
}

.textbook-examples {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.textbook-example {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 15px 17px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: var(--canvas);
}

.textbook-example__number {
  display: grid;
  width: 27px;
  height: 27px;
  grid-row: 1 / span 2;
  place-items: center;
  border-radius: 50%;
  background: var(--white);
  color: var(--accent-dark);
  font-size: 11px;
  font-weight: 800;
}

.textbook-example p {
  margin: 0;
}

.textbook-example__english {
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
}

.textbook-example__russian {
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.5;
}

.textbook-mistake {
  background: color-mix(in srgb, var(--danger-soft) 48%, var(--white));
}

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

.textbook-mistake__line {
  display: grid;
  gap: 7px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--white);
}

.textbook-mistake__line > span {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.textbook-mistake__line--wrong > span,
.textbook-mistake__line--wrong del {
  color: var(--danger);
}

.textbook-mistake__line--right > span,
.textbook-mistake__line--right ins {
  color: var(--success);
}

.textbook-mistake__line del,
.textbook-mistake__line ins {
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.5;
}

.textbook-mistake__line ins {
  text-decoration: none;
}

.textbook-mistake__note {
  margin-top: 12px !important;
  color: var(--ink) !important;
  font-size: 12.5px !important;
}

.textbook-practice {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  background: color-mix(in srgb, var(--accent-soft) 62%, var(--white));
}

.textbook-practice--planned {
  background: var(--canvas);
}

.textbook-practice__icon {
  display: grid;
  width: 44px;
  height: 44px;
  flex: none;
  place-items: center;
  border-radius: 13px;
  background: var(--accent);
  color: var(--white);
  font-size: 20px;
  font-weight: 850;
}

.textbook-practice--planned .textbook-practice__icon {
  background: var(--line);
  color: var(--muted);
}

.textbook-practice__copy {
  min-width: 0;
}

.textbook-practice__eyebrow {
  display: block;
  margin-bottom: 4px;
  color: var(--accent-dark);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.textbook-practice__copy h2 {
  margin: 0 0 5px;
  font-size: 17px;
}

.textbook-practice__copy p {
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.5;
}

.textbook-practice > a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 10px 15px;
  border-radius: 11px;
  background: var(--accent);
  color: var(--white);
  font-size: 12px;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
  transition: background-color 140ms ease, transform 140ms ease;
}

.textbook-practice > a:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.textbook-practice__status {
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--faint);
  font-size: 11px;
  font-weight: 800;
}

.textbook-topic__navigation {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 22px 36px 30px;
  border-top: 1px solid var(--line-soft);
}

.textbook-topic__navigation .button {
  min-height: 48px;
  height: auto;
  padding-top: 10px;
  padding-bottom: 10px;
  line-height: 1.35;
  white-space: normal;
}

.textbook-topic__navigation .button:disabled {
  cursor: default;
  filter: grayscale(1);
  opacity: .45;
}

@media (max-width: 900px) {
  .textbook-hero {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 22px;
  }

  .textbook-hero__stats {
    justify-self: start;
  }

  .textbook-controls,
  .textbook-layout {
    grid-template-columns: 1fr;
  }

  .textbook-filters {
    justify-content: flex-start;
  }

  .textbook-toc {
    position: static;
    max-height: none;
  }

  .textbook-toc__body {
    max-height: 430px;
  }
}

@media (max-width: 600px) {
  .textbook-page {
    gap: 14px;
  }

  .textbook-hero,
  .textbook-controls {
    padding: 22px 20px;
  }

  .textbook-hero__stats {
    width: 100%;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .textbook-hero__stat {
    min-width: 0;
    padding: 11px 9px;
  }

  .textbook-hero__stat dt {
    font-size: 15px;
  }

  .textbook-filter {
    flex: 1 1 calc(33.333% - 7px);
  }

  .textbook-topic__head,
  .textbook-topic__section {
    padding: 23px 20px;
  }

  .textbook-examples {
    grid-template-columns: 1fr;
  }

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

  .textbook-practice > a,
  .textbook-practice__status {
    grid-column: 1 / -1;
    justify-self: stretch;
  }

  .textbook-mistake__comparison,
  .textbook-topic__navigation {
    grid-template-columns: 1fr;
  }

  .textbook-topic__navigation {
    padding: 18px 20px 24px;
  }
}

.app-footer nav a {
  transition: color 140ms ease;
}

.app-footer nav a:hover,
.app-footer nav a[aria-current="page"] {
  color: var(--accent-dark);
}

.avatar,
.profile-avatar,
.league-avatar {
  border-radius: 50%;
  background: repeating-linear-gradient(45deg, var(--line), var(--line) 6px, #dde0e7 6px, #dde0e7 12px);
}

.avatar {
  display: inline-flex;
  width: 36px;
  height: 36px;
  flex: none;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 0;
  border: 2px solid var(--white);
  background: var(--accent-soft);
  box-shadow: 0 0 0 1px var(--line);
  color: var(--accent-dark);
  cursor: pointer;
  font: inherit;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.02em;
  background-clip: padding-box;
  background-position: center;
  background-size: cover;
}

.user-menu {
  position: relative;
  display: flex;
  flex: none;
}

.user-menu__trigger[aria-expanded="true"] {
  box-shadow: 0 0 0 2px var(--accent-soft), 0 0 0 3px var(--accent);
}

.user-menu__popover {
  position: absolute;
  z-index: 70;
  top: calc(100% + 12px);
  right: 0;
  width: 220px;
  padding: 8px;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: var(--white);
  box-shadow: 0 18px 48px rgb(22 24 29 / 16%);
}

.user-menu__popover[hidden] {
  display: none;
}

.user-menu__identity {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin: 0 4px 6px;
  padding: 8px 10px 12px;
  border-bottom: 1px solid var(--line-soft);
}

.user-menu__identity span {
  color: var(--faint);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.user-menu__identity strong {
  overflow: hidden;
  font-size: 13.5px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-menu__item {
  display: flex;
  width: 100%;
  align-items: center;
  padding: 10px 12px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  text-align: left;
}

.user-menu__item:hover,
.user-menu__item:focus-visible,
.user-menu__item[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.user-menu__item--danger {
  color: var(--danger);
}

.user-menu__item--danger:disabled {
  cursor: wait;
  opacity: 0.6;
}

.menu-toggle {
  position: relative;
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  cursor: pointer;
}

.menu-toggle span {
  position: absolute;
  left: 11px;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: top 160ms ease, transform 160ms ease, opacity 160ms ease;
}

.menu-toggle span:nth-child(1) { top: 13px; }
.menu-toggle span:nth-child(2) { top: 18px; }
.menu-toggle span:nth-child(3) { top: 23px; }

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  top: 18px;
  transform: rotate(45deg);
}

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

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  top: 18px;
  transform: rotate(-45deg);
}

.mobile-menu {
  display: none;
}

[data-app-chrome][hidden] {
  display: none !important;
}

.page-shell {
  width: min(100%, var(--app-shell-width));
  margin: 0 auto;
  padding: 32px 40px 40px;
}

.page-shell--narrow {
  width: min(100%, var(--app-shell-width));
}

.dashboard-grid,
.profile-grid,
.subscription-top,
.grammar-layout,
.reading-layout,
.dialog-layout {
  display: grid;
}

.dashboard-grid {
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
}

.content-stack,
.side-stack,
.profile-sidebar,
.profile-content,
.payment-stack {
  display: flex;
  flex-direction: column;
}

.content-stack { gap: 24px; }
.side-stack { gap: 20px; }
.profile-sidebar,
.profile-content { gap: 20px; }
.payment-stack { gap: 20px; }

.card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--white);
}

.card--padded {
  padding: 24px 28px;
}

.card--dark {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.section-heading,
.card-heading,
.welcome-head,
.heading-row,
.card-heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.section-heading {
  margin: 0 0 14px;
}

.section-heading h2,
.card-heading h2,
.heading-row h1,
.heading-row h2 {
  margin: 0;
}

.section-heading h2,
.card-heading h2 {
  font-size: 17px;
  font-weight: 800;
}

.text-link {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--accent-dark);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}

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

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.profile-level-link {
  text-decoration: none;
}

.profile-level-link:hover {
  background: var(--accent);
  color: white;
}

.badge--success {
  background: var(--success-soft);
  color: var(--success);
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 6px 18px oklch(0.52 0.19 262 / 20%);
}

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

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

.button--secondary:hover {
  border-color: #cfd3dc;
  background: var(--canvas);
}

.button--ghost {
  border-color: rgb(255 255 255 / 24%);
  background: transparent;
  color: var(--white);
}

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

.button--wide { width: 100%; }
.button--large {
  min-height: 50px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 15px;
}

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

.progress-track__bar {
  width: var(--progress, 0%);
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}

.progress-track--segmented {
  display: flex;
  overflow: visible;
  gap: 5px;
  border-radius: 0;
  background: transparent;
}

.progress-track__segment {
  min-width: 0;
  height: 100%;
  flex: 1;
  border-radius: 999px;
  background: var(--line-soft);
  transition: background-color .2s ease, box-shadow .2s ease;
}

.progress-track__segment--success { background: var(--success); }
.progress-track__segment--error { background: var(--danger); }
.progress-track__segment--skipped { background: #9aa0ae; }

.progress-track__segment.is-current {
  box-shadow: 0 0 0 2px var(--white), 0 0 0 4px var(--accent-line);
}

.welcome-card {
  padding: 26px 28px;
}

.welcome-head {
  margin-bottom: 18px;
}

.welcome-head h1 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 800;
}

.welcome-head p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
}

.weekday-row {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  color: var(--faint);
  font-size: 12px;
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.task-card {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 18px;
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--white);
}

.task-icon {
  display: grid;
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 13px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 18px;
  font-weight: 800;
}

.task-icon--dark {
  background: var(--ink);
  color: var(--white);
}

.task-copy {
  min-width: 0;
  flex: 1;
}

.task-copy strong {
  display: block;
  margin-bottom: 3px;
  font-size: 15.5px;
}

.task-copy span {
  color: var(--muted);
  font-size: 13px;
}

.metric-grid,
.stat-grid,
.achievement-grid,
.trainer-grid,
.goal-grid {
  display: grid;
}

.metric-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.metric {
  min-width: 0;
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--canvas);
}

.metric > span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.metric strong {
  display: block;
  margin: 3px 0 8px;
  font-size: 19px;
  font-weight: 800;
}

.metric .progress-track {
  height: 6px;
  background: var(--line);
}

.mascot {
  display: grid;
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: repeating-linear-gradient(45deg, var(--accent-soft), var(--accent-soft) 6px, #e3e8fa 6px, #e3e8fa 12px);
  color: var(--faint);
  font: 8px ui-monospace, SFMono-Regular, Menlo, monospace;
}

.coach-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px;
  font-size: 13.5px;
  line-height: 1.5;
}

.league-card,
.repeat-card {
  padding: 22px;
}

.card-heading-row {
  margin-bottom: 14px;
}

.card-heading-row strong {
  font-size: 15px;
}

.card-heading-row span {
  color: var(--faint);
  font-size: 12px;
}

.league-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.league-row {
  display: grid;
  grid-template-columns: 18px 26px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 9px;
  font-size: 13.5px;
}

.league-row--current {
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

.league-row__place {
  color: var(--faint);
  font-weight: 700;
}

.league-row--current .league-row__place {
  color: var(--accent-dark);
}

.league-avatar {
  width: 26px;
  height: 26px;
}

.repeat-card p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.6;
}

.league-page { display: grid; gap: 24px; }
.league-hero { padding: 28px; }
.league-hero h1 { margin: 6px 0 4px; font-size: 28px; }
.league-hero p { margin: 0; color: var(--muted); }
.league-current { display: flex; align-items: baseline; gap: 14px; padding: 18px 24px; background: var(--accent-soft); border-color: var(--accent-line); }
.league-current__label { color: var(--muted); font-size: 13px; }
.league-current__position { color: var(--accent-dark); font-size: 22px; }
.league-current__xp { margin-left: auto; color: var(--accent-dark); font-weight: 800; }
.league-table { padding: 24px 28px; }
.league-table__count { color: var(--faint); font-size: 12px; }
.league-table__header,
.league-table__row { display: grid; grid-template-columns: 50px 44px minmax(0, 1fr) 100px 120px; align-items: center; gap: 12px; }
.league-table__header { padding: 0 12px 8px; border-bottom: 1px solid var(--line); color: var(--faint); font-size: 12px; }
.league-table__header span:nth-child(2) { grid-column: 2 / 4; }
.league-table__header span:nth-child(3) { grid-column: 4; }
.league-table__header span:nth-child(4) { grid-column: 5; text-align: right; }
.league-table__rows { display: grid; gap: 6px; padding-top: 8px; }
.league-table__row { min-height: 52px; padding: 6px 12px; border: 1px solid transparent; border-radius: 10px; }
.league-table__row--current { border-color: var(--accent-line); background: var(--accent-soft); }
.league-table__place { color: var(--faint); font-weight: 800; }
.league-table__avatar { width: 38px; height: 38px; grid-column: 2; border-radius: 50%; object-fit: cover; }
.league-table__name { grid-column: 3; }
.league-table__streak { grid-column: 4; color: var(--muted); font-size: 13px; }
.league-table__xp { grid-column: 5; text-align: right; color: var(--accent-dark); }

@media (max-width: 640px) {
  .league-table { padding: 20px 14px; }
  .league-table__header,
  .league-table__row { grid-template-columns: 32px 34px minmax(0, 1fr) 78px 88px; gap: 8px; padding-left: 8px; padding-right: 8px; }
  .league-table__avatar { width: 32px; height: 32px; }
  .league-table__streak { font-size: 12px; }
  .league-table__xp { font-size: 12px; }
}

.trainer-library {
  margin-top: 24px;
}

.trainer-catalog-page { display: grid; gap: 24px; }
.trainer-catalog-hero { padding: 28px; }
.trainer-catalog-hero h1 { margin: 6px 0 4px; font-size: 28px; }
.trainer-catalog-hero p { margin: 0; color: var(--muted); }
.trainer-catalog-groups { display: grid; gap: 28px; }
.trainer-catalog-group { display: grid; gap: 12px; }
.trainer-catalog-group h2 { margin: 0; font-size: 18px; }
.trainer-catalog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.trainer-catalog-card { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 16px; align-items: start; position: relative; min-height: 138px; padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: var(--white); color: inherit; text-decoration: none; transition: border-color .15s, transform .15s, box-shadow .15s; }
.trainer-catalog-card:hover { border-color: var(--accent-line); box-shadow: 0 10px 24px rgb(20 31 38 / 8%); transform: translateY(-2px); }
.trainer-catalog-card--inactive { background: var(--canvas); filter: grayscale(1); opacity: .58; }
.trainer-catalog-card__icon { display: grid; width: 48px; height: 48px; place-items: center; border-radius: 14px; background: var(--accent-soft); font-size: 25px; }
.trainer-catalog-card__body { min-width: 0; }
.trainer-catalog-card h2 { margin: 0 0 7px; font-size: 16px; }
.trainer-catalog-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.45; }
.trainer-catalog-card__status { position: absolute; right: 18px; bottom: 16px; color: var(--accent-dark); font-size: 12px; font-weight: 800; }
.trainer-catalog-card--inactive .trainer-catalog-card__status { color: var(--faint); }
.textbook-trainer-library { display: grid; gap: 14px; }
.textbook-trainer-library__head { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 24px; padding: 28px; border-color: var(--accent-line); background: linear-gradient(135deg, var(--accent-soft), var(--white) 68%); }
.textbook-trainer-library__copy { max-width: 760px; }
.textbook-trainer-library__eyebrow { color: var(--accent-dark); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.textbook-trainer-library__copy h2 { margin: 7px 0 7px; font-size: 23px; }
.textbook-trainer-library__copy p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.textbook-trainer-library__stats { display: grid; grid-template-columns: repeat(2, minmax(96px, 1fr)); gap: 9px; margin: 0; }
.textbook-trainer-library__stat { min-width: 100px; padding: 12px 14px; border: 1px solid var(--accent-line); border-radius: 12px; background: rgb(255 255 255 / 86%); }
.textbook-trainer-library__stat dt { color: var(--accent-dark); font-size: 20px; font-weight: 850; }
.textbook-trainer-library__stat dd { margin: 3px 0 0; color: var(--muted); font-size: 10.5px; }
.textbook-trainer-levels { display: grid; gap: 10px; }
.textbook-trainer-level { overflow: hidden; }
.textbook-trainer-level__summary { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: 14px; min-height: 66px; padding: 14px 20px; cursor: pointer; list-style: none; }
.textbook-trainer-level__summary::-webkit-details-marker { display: none; }
.textbook-trainer-level__summary::after { color: var(--accent-dark); content: '⌄'; font-size: 19px; font-weight: 800; transform: rotate(-90deg); transition: transform 140ms ease; }
.textbook-trainer-level[open] .textbook-trainer-level__summary { border-bottom: 1px solid var(--line-soft); }
.textbook-trainer-level[open] .textbook-trainer-level__summary::after { transform: rotate(0); }
.textbook-trainer-level__copy { display: flex; min-width: 0; align-items: center; gap: 11px; }
.textbook-trainer-level__copy strong { overflow: hidden; font-size: 15px; text-overflow: ellipsis; white-space: nowrap; }
.textbook-trainer-level__count { color: var(--muted); font-size: 11.5px; font-weight: 750; }
.textbook-trainer-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; padding: 16px; background: var(--canvas); }
.textbook-trainer-card { position: relative; display: flex; min-width: 0; min-height: 158px; flex-direction: column; padding: 15px; border: 1px solid var(--line-soft); border-radius: 13px; background: var(--white); color: inherit; text-decoration: none; transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease; }
.textbook-trainer-card--ready:hover { border-color: var(--accent-line); box-shadow: 0 9px 22px rgb(20 31 38 / 8%); transform: translateY(-2px); }
.textbook-trainer-card--planned { background: color-mix(in srgb, var(--canvas) 74%, var(--white)); }
.textbook-trainer-card__meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.textbook-trainer-card__number { color: var(--faint); font-size: 10px; font-weight: 850; letter-spacing: .05em; }
.textbook-trainer-card__status { padding: 4px 7px; border-radius: 999px; background: var(--success-soft); color: var(--success); font-size: 9px; font-weight: 850; letter-spacing: .04em; text-transform: uppercase; }
.textbook-trainer-card--planned .textbook-trainer-card__status { background: var(--line-soft); color: var(--faint); }
.textbook-trainer-card h3 { margin: 13px 0 7px; font-size: 14px; line-height: 1.35; }
.textbook-trainer-card p { margin: 0; color: var(--muted); font-size: 11.5px; line-height: 1.45; }
.textbook-trainer-card__action { margin-top: auto; padding-top: 12px; color: var(--accent-dark); font-size: 11.5px; font-weight: 800; }
.dictionary-page { display: grid; gap: 24px; }
.dictionary-hero { padding: 28px; }
.dictionary-collection-page .dictionary-hero { display: grid; gap: 8px; }
.dictionary-collection-page .dictionary-hero--with-background { position: relative; min-height: 220px; align-content: center; overflow: hidden; background-color: var(--canvas); background-image: linear-gradient(90deg, var(--canvas) 0%, var(--canvas) 30%, color-mix(in srgb, var(--canvas) 94%, transparent) 44%, color-mix(in srgb, var(--canvas) 48%, transparent) 62%, transparent 78%), var(--dictionary-collection-background); background-position: center, center; background-repeat: no-repeat; background-size: 100% 100%, cover; }
.dictionary-collection-page .dictionary-hero--with-background > * { position: relative; z-index: 1; max-width: 58%; }
.dictionary-collection-page .dictionary-hero .text-link { justify-self: start; margin-bottom: 8px; }
.learning-path-page { display: grid; gap: 24px; }
.learning-path-hero { padding: 28px; }
.learning-path-page .learning-path-hero { display: grid; gap: 8px; }
.learning-path-page .learning-path-hero > .text-link { justify-self: start; margin-bottom: 8px; }
.learning-path-hero h1 { margin: 6px 0 4px; font-size: 28px; }
.learning-path-hero p { max-width: 700px; margin: 0; color: var(--muted); line-height: 1.55; }
.learning-path-notice { padding: 24px 28px; }
.learning-path-notice strong { font-size: 16px; }
.learning-path-notice p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.learning-path-levels { padding: 26px; }
.course-selector { padding: 26px; }
.course-selector h2 { margin: 0 0 18px; font-size: 18px; }
.course-selector__groups { display: grid; gap: 24px; }
.course-selector__group { display: grid; gap: 12px; }
.course-selector__group h3 { margin: 0; font-size: 15px; }
.course-selector__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.course-option { display: grid; gap: 5px; min-height: 132px; padding: 16px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); color: inherit; text-align: left; text-decoration: none; cursor: pointer; transition: border-color .15s, box-shadow .15s, transform .15s; }
.course-option:hover { border-color: var(--accent-line); transform: translateY(-1px); }
.course-option--selected { border-color: var(--accent); background: var(--accent-soft); box-shadow: 0 0 0 2px rgb(61 133 109 / 12%); }
.course-option strong { color: var(--accent-dark); font-size: 18px; }
.course-option span { font-size: 14px; font-weight: 700; }
.course-option small { color: var(--muted); font-size: 12px; font-weight: 400; line-height: 1.45; }
.course-details { display: grid; }
.business-course-page { display: grid; gap: 24px; }
.business-course-hero { display: grid; gap: 9px; padding: 28px; }
.business-course-hero > .text-link { justify-self: start; margin-bottom: 8px; }
.business-course-hero__eyebrow { color: var(--accent-dark); font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.business-course-hero h1 { margin: 0; font-size: 30px; }
.business-course-hero p { max-width: 680px; margin: 0; color: var(--muted); line-height: 1.55; }
.business-course-hero__progress { margin-top: 8px; color: var(--accent-dark); font-size: 13px; }
.business-course-path {
  padding: 26px 32px 34px;
  background:
    linear-gradient(rgb(255 255 255 / 28%), rgb(255 255 255 / 28%)),
    url('/images/course-business-road-bg-wide.jpg') center top / 100% 100% no-repeat;
}
.business-course-path h2 { margin: 0 0 24px; font-size: 20px; }
.business-road { position: relative; height: var(--road-height); max-width: 920px; margin: 0 auto; }
.business-road__svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.business-road__track,
.business-road__line { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.business-road__track { stroke: var(--line-soft); stroke-width: 13; }
.business-road__line { stroke: var(--accent-line); stroke-width: 4; }
.business-road-stop { position: absolute; top: var(--road-y); left: var(--road-x); width: 0; height: 0; }
.business-road-stop__button { position: absolute; z-index: 2; display: grid; width: 72px; height: 72px; place-items: center; padding: 0; transform: translate(-50%, -50%); border: 6px solid var(--white); border-radius: 50%; background: var(--line-soft); box-shadow: 0 0 0 1px var(--line), 0 8px 18px rgb(22 24 29 / 12%); color: var(--muted); font-size: 19px; font-weight: 800; cursor: pointer; transition: transform .15s, box-shadow .15s; }
.business-road-stop__button:hover:not(:disabled) { transform: translate(-50%, -50%) scale(1.06); box-shadow: 0 0 0 3px var(--accent-line), 0 10px 22px rgb(22 24 29 / 16%); }
.business-road-stop__button:disabled { cursor: not-allowed; }
.business-road-stop__card { position: absolute; top: 50%; width: 240px; padding: 15px 17px; transform: translateY(-50%) translateX(6px); border: 1px solid var(--line-soft); border-radius: 15px; background: var(--canvas); box-shadow: 0 7px 18px rgb(22 24 29 / 5%); opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .18s ease, transform .18s ease, visibility .18s ease; }
.business-road-stop__card--right { left: 52px; }
.business-road-stop__card--left { right: 52px; text-align: right; transform: translateY(-50%) translateX(-6px); }
.business-road-stop:hover .business-road-stop__card,
.business-road-stop:focus-within .business-road-stop__card { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(-50%); }
.business-road-stop__eyebrow { color: var(--muted); font-size: 10px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.business-road-stop__card h3 { margin: 4px 0 4px; font-size: 15px; }
.business-road-stop__card p { margin: 0 0 7px; color: var(--muted); font-size: 12px; line-height: 1.4; }
.business-road-stop__card small { color: var(--muted); font-size: 11px; }
.business-road-stop--current .business-road-stop__button { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-line), 0 9px 20px rgb(20 31 38 / 14%); color: var(--white); }
.business-road-stop--current .business-road-stop__card { border-color: var(--accent-line); background: var(--accent-soft); }
.business-road-stop--current .business-road-stop__eyebrow { color: var(--accent-dark); }
.business-road-stop--locked { opacity: .58; }
.learning-path-levels h2 { margin: 0 0 18px; font-size: 18px; }
.learning-path-level-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.learning-path-levels__description { margin: -8px 0 18px; color: var(--muted); font-size: 13px; }
.learning-path-progress { display: grid; grid-template-columns: auto minmax(160px, 1fr); align-items: center; gap: 18px; margin: 0 0 22px; padding: 14px 16px; border-radius: 12px; background: var(--accent-soft); }
.learning-path-progress__copy { display: grid; gap: 2px; }
.learning-path-progress__copy strong { color: var(--accent-dark); font-size: 14px; }
.learning-path-progress__copy span { color: var(--muted); font-size: 11px; }
.learning-path-progress__track { height: 8px; overflow: hidden; border-radius: 999px; background: rgb(255 255 255 / 76%); }
.learning-path-progress__fill { display: block; height: 100%; border-radius: inherit; background: var(--accent); transition: width .25s ease; }
.learning-path-unit-grid { display: grid; gap: 14px; }
.learning-path-unit { padding: 18px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.learning-path-unit--current { border-color: var(--accent-line); }
.learning-path-unit__heading { display: flex; align-items: center; gap: 10px; }
.learning-path-unit__heading strong { color: var(--accent-dark); font-size: 18px; }
.learning-path-unit__heading div { font-size: 15px; font-weight: 700; }
.learning-path-unit__done { margin-left: auto; color: var(--accent-dark); font-size: 11px; font-weight: 800; }
.learning-path-unit > p { margin: 8px 0 14px; color: var(--muted); font-size: 13px; }
.learning-path-lessons { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.learning-path-lesson { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border: 1px solid var(--line-soft); border-radius: 10px; background: var(--white); opacity: .6; }
.learning-path-lesson__link { display: flex; width: 100%; align-items: center; gap: 12px; color: inherit; text-decoration: none; }
.learning-path-lesson a.learning-path-lesson__link { border-radius: 8px; }
.learning-path-lesson a.learning-path-lesson__link:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.learning-path-lesson--available, .learning-path-lesson--in_progress, .learning-path-lesson--completed { opacity: 1; }
.learning-path-lesson--available { border-color: var(--accent-line); }
.learning-path-lesson--in_progress { border-color: var(--accent); background: var(--accent-soft); }
.learning-path-lesson--completed { background: color-mix(in srgb, var(--accent-soft) 58%, white); }
.learning-path-lesson__number { display: grid; width: 25px; height: 25px; flex: 0 0 25px; place-items: center; border-radius: 50%; background: var(--line-soft); color: var(--muted); font-size: 12px; font-weight: 800; }
.learning-path-lesson--available .learning-path-lesson__number, .learning-path-lesson--in_progress .learning-path-lesson__number { background: var(--accent); color: white; }
.learning-path-lesson--completed .learning-path-lesson__number { background: var(--accent-dark); color: white; }
.learning-path-lesson__copy { display: grid; gap: 3px; }
.learning-path-lesson__copy strong { font-size: 13px; }
.learning-path-lesson__copy small { color: var(--muted); font-size: 11px; }
.learning-path-level { display: grid; gap: 5px; padding: 18px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.learning-path-level strong { color: var(--accent-dark); font-size: 22px; }
.learning-path-level span { font-size: 14px; font-weight: 700; }
.learning-path-level small { color: var(--muted); font-size: 12px; }
.learning-path-level--current { border-color: var(--accent-line); background: var(--accent-soft); }

.course-lesson-page { display: grid; gap: 20px; max-width: 920px; margin: 0 auto; }
.course-lesson-hero { display: grid; gap: 9px; padding: 28px; overflow: hidden; position: relative; }
.course-lesson-hero::after { position: absolute; right: -70px; bottom: -90px; width: 220px; height: 220px; border-radius: 50%; background: var(--accent-soft); content: ''; pointer-events: none; }
.course-lesson-hero > * { position: relative; z-index: 1; }
.course-lesson-hero > .text-link { justify-self: start; margin-bottom: 8px; }
.course-lesson-hero__eyebrow, .course-lesson-section-label { color: var(--accent-dark); font-size: 11px; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.course-lesson-hero h1 { max-width: 680px; margin: 2px 0 0; font-size: clamp(28px, 4vw, 38px); line-height: 1.1; }
.course-lesson-hero__goal { max-width: 680px; margin: 3px 0 0; color: var(--muted); font-size: 15px; line-height: 1.55; }
.course-lesson-hero__meta { color: var(--muted); font-size: 12px; font-weight: 750; }
.course-lesson-progress { display: grid; grid-template-columns: minmax(140px, 1fr) auto; align-items: center; gap: 12px; max-width: 470px; margin-top: 8px; }
.course-lesson-progress__track { height: 8px; overflow: hidden; border-radius: 999px; background: var(--line-soft); }
.course-lesson-progress__fill { display: block; height: 100%; border-radius: inherit; background: var(--accent); }
.course-lesson-progress strong { color: var(--accent-dark); font-size: 11px; }
.course-lesson-theory, .course-lesson-practice { padding: 26px 28px; }
.course-lesson-theory h2, .course-lesson-practice h2 { margin: 5px 0 14px; font-size: 21px; }
.course-lesson-theory__rule { max-width: 760px; margin: 0; color: var(--text); font-size: 15px; line-height: 1.65; }
.course-lesson-examples { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 20px 0 0; padding: 0; list-style: none; }
.course-lesson-examples li { padding: 13px 14px; border: 1px solid var(--accent-line); border-radius: 11px; background: var(--accent-soft); color: var(--accent-dark); font-size: 13px; font-weight: 750; line-height: 1.45; }
.course-learning { padding: 26px 28px; }
.course-learning > h2 { margin: 5px 0 18px; font-size: 23px; }
.course-learning-body { display: grid; gap: 16px; }
.course-learning-section { display: grid; gap: 13px; padding: 20px; border: 1px solid var(--line-soft); border-radius: 15px; background: var(--canvas); }
.course-learning-section__head { display: flex; align-items: center; gap: 11px; }
.course-learning-section__head h3 { margin: 0; font-size: 17px; }
.course-learning-section__number { display: grid; width: 30px; height: 30px; flex: 0 0 30px; place-items: center; border-radius: 50%; background: var(--accent); color: #fff; font-size: 12px; font-weight: 850; }
.course-learning-section__explanation, .course-learning-intro { max-width: 780px; margin: 0; color: var(--text); font-size: 14px; line-height: 1.65; }
.course-learning-formula { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; padding: 11px 13px; border-left: 3px solid var(--accent); border-radius: 8px; background: var(--accent-soft); }
.course-learning-formula span { color: var(--muted); font-size: 10px; font-weight: 850; letter-spacing: .07em; text-transform: uppercase; }
.course-learning-formula strong { color: var(--accent-dark); font-size: 14px; }
.course-learning-examples { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.course-learning-example { min-width: 0; padding: 14px; border: 1px solid var(--accent-line); border-radius: 12px; background: #fff; }
.course-learning-example p { margin: 0; }
.course-learning-example__phrase { color: var(--text); font-size: 14px; font-weight: 800; line-height: 1.5; }
.course-learning-example__focus { padding: 1px 3px; border-radius: 4px; background: #ffe69a; color: inherit; }
.course-learning-example__translation { margin-top: 5px !important; color: var(--muted); font-size: 13px; line-height: 1.45; }
.course-learning-example__note { margin-top: 8px !important; color: var(--accent-dark); font-size: 11px; font-weight: 750; line-height: 1.4; }
.course-learning-mistake { display: grid; gap: 9px; padding: 17px 18px; border: 1px solid #e9c6b8; border-radius: 14px; background: #fff5f0; }
.course-learning-mistake > strong { font-size: 14px; }
.course-learning-mistake > p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.course-learning-mistake__comparison { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.course-learning-mistake__comparison span { padding: 9px 11px; border-radius: 9px; font-size: 12px; font-weight: 750; line-height: 1.4; }
.course-learning-mistake__wrong { background: #ffe1d7; color: #9c3f25; }
.course-learning-mistake__correct { background: #e2f6e8; color: #236b39; }
.course-learning-review { display: grid; gap: 9px; margin: 0; padding: 0; list-style: none; counter-reset: review; }
.course-learning-review li { position: relative; padding: 12px 14px 12px 42px; border: 1px solid var(--line-soft); border-radius: 11px; background: var(--canvas); font-size: 13px; line-height: 1.5; counter-increment: review; }
.course-learning-review li::before { position: absolute; left: 13px; top: 11px; display: grid; width: 21px; height: 21px; place-items: center; border-radius: 50%; background: var(--accent-soft); color: var(--accent-dark); font-size: 10px; font-weight: 850; content: counter(review); }
.course-learning-checkpoint-examples { display: grid; gap: 10px; }
.course-learning-checkpoint-examples h3 { margin: 3px 0 0; font-size: 15px; }
.course-learning--collapsed { padding: 0; overflow: hidden; }
.course-learning-summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px; cursor: pointer; list-style: none; }
.course-learning-summary::-webkit-details-marker { display: none; }
.course-learning-summary__copy { display: grid; gap: 3px; }
.course-learning-summary__copy strong { font-size: 16px; }
.course-learning-summary__action { color: var(--accent-dark); font-size: 12px; font-weight: 800; }
.course-learning--collapsed[open] .course-learning-summary { border-bottom: 1px solid var(--line-soft); }
.course-learning--collapsed[open] .course-learning-summary__action { font-size: 0; }
.course-learning--collapsed[open] .course-learning-summary__action::after { font-size: 12px; content: 'Свернуть'; }
.course-learning--collapsed > .course-learning-body { padding: 20px 22px 22px; }
.trainer-rule-button { display: inline-flex; min-height: 38px; flex: 0 0 auto; align-items: center; gap: 7px; padding: 7px 12px; border: 1px solid var(--accent-line); border-radius: 10px; background: var(--accent-soft); color: var(--accent-dark); font: inherit; font-size: 12px; font-weight: 800; cursor: pointer; }
.trainer-rule-button:hover { border-color: var(--accent); background: color-mix(in srgb, var(--accent-soft) 72%, white); }
.trainer-rule-button__icon { display: grid; width: 20px; height: 20px; place-items: center; border-radius: 50%; background: var(--accent); color: #fff; font-size: 11px; font-weight: 900; }
.course-rule-dialog { width: min(820px, calc(100% - 32px)); max-width: none; max-height: min(86vh, 820px); margin: auto; padding: 0; overflow: hidden; border: 0; border-radius: 18px; background: transparent; color: var(--text); box-shadow: 0 24px 70px rgb(32 43 58 / 24%); }
.course-rule-dialog::backdrop { background: rgb(20 29 42 / 48%); backdrop-filter: blur(3px); }
.course-rule-dialog__surface { max-height: min(86vh, 820px); overflow: auto; border: 1px solid var(--line-soft); border-radius: inherit; background: #fff; }
.course-rule-dialog__head { position: sticky; z-index: 2; top: 0; display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; padding: 20px 22px 17px; border-bottom: 1px solid var(--line-soft); background: rgb(255 255 255 / 96%); backdrop-filter: blur(8px); }
.course-rule-dialog__copy { display: grid; gap: 4px; }
.course-rule-dialog__copy h2 { margin: 0; font-size: 22px; line-height: 1.25; }
.course-rule-dialog__close { display: grid; width: 38px; height: 38px; flex: 0 0 auto; place-items: center; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--muted); font: inherit; font-size: 24px; line-height: 1; cursor: pointer; }
.course-rule-dialog__close:hover { border-color: var(--accent); color: var(--accent-dark); }
.course-learning-body--dialog { padding: 20px 22px 24px; }
.trainer-frame--course .pairs-toolbar,
.trainer-frame--course .phrase-builder-level-picker,
.trainer-frame--course .irregular-verbs-level-picker,
.trainer-frame--course .prepositions-level-picker,
.trainer-frame--course .articles-level-picker,
.trainer-frame--course .mini-story-level-picker,
.trainer-frame--course .phrasal-verbs-level-picker,
.trainer-frame--course .word-formation-level-picker,
.trainer-frame--course .vocabulary-cards-collection,
.trainer-frame--course [data-course-restart] { display: none; }
.course-knowledge-check { display: grid; gap: 15px; padding: 26px 28px; }
.course-knowledge-check h2 { margin: -2px 0 0; font-size: 22px; }
.course-knowledge-check__lead { max-width: 700px; margin: -7px 0 3px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.course-knowledge-check__items { display: grid; gap: 12px; }
.course-knowledge-question { display: grid; gap: 11px; padding: 17px; border: 1px solid var(--line-soft); border-radius: 13px; background: var(--canvas); }
.course-knowledge-question h3 { margin: 0; font-size: 14px; line-height: 1.5; }
.course-knowledge-question__options { display: flex; flex-wrap: wrap; gap: 8px; }
.course-knowledge-option { min-height: 40px; padding: 9px 14px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--text); font: inherit; font-size: 13px; font-weight: 750; cursor: pointer; }
.course-knowledge-option:hover:not(:disabled) { border-color: var(--accent); background: var(--accent-soft); }
.course-knowledge-option.is-wrong { border-color: #d46e50; background: #fff0ea; color: #8f351d; }
.course-knowledge-option.is-correct { border-color: #52a56b; background: #e8f7ed; color: #1f6836; }
.course-knowledge-option:disabled { cursor: default; opacity: .72; }
.course-knowledge-question__feedback { min-height: 18px; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.45; }
.course-knowledge-question__feedback.is-wrong { color: #9c3f25; }
.course-knowledge-question__feedback.is-correct { color: #236b39; }
.course-knowledge-check__start { justify-self: center; min-width: 210px; margin-top: 3px; }
.course-knowledge-check__start:disabled { cursor: not-allowed; opacity: .55; }
.course-checkpoint-notice { padding: 18px 20px; border: 1px solid #e4ce85; border-radius: 14px; background: #fff8dd; }
.course-checkpoint-notice--retry { border-color: #e1a38f; background: #fff1ec; }
.course-checkpoint-notice strong { font-size: 14px; }
.course-checkpoint-notice p { margin: 5px 0 0; color: var(--muted); font-size: 13px; line-height: 1.5; }
.course-lesson-steps { display: grid; gap: 12px; }
.course-lesson-step { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 12px 20px; padding: 18px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.course-lesson-step--available, .course-lesson-step--in_progress { border-color: var(--accent-line); }
.course-lesson-step--completed { background: color-mix(in srgb, var(--accent-soft) 50%, white); }
.course-lesson-step--locked { opacity: .58; }
.course-lesson-step__head { display: flex; align-items: flex-start; gap: 13px; }
.course-lesson-step__number { display: grid; width: 34px; height: 34px; flex: 0 0 34px; place-items: center; border-radius: 50%; background: var(--line-soft); color: var(--muted); font-size: 13px; font-weight: 850; }
.course-lesson-step--available .course-lesson-step__number, .course-lesson-step--in_progress .course-lesson-step__number { background: var(--accent); color: white; }
.course-lesson-step--completed .course-lesson-step__number { background: var(--accent-dark); color: white; }
.course-lesson-step__copy { display: grid; gap: 3px; }
.course-lesson-step__trainer { color: var(--accent-dark); font-size: 10px; font-weight: 850; letter-spacing: .06em; text-transform: uppercase; }
.course-lesson-step__copy h3 { margin: 0; font-size: 15px; }
.course-lesson-step__copy p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.45; }
.course-lesson-step__meta { display: flex; grid-column: 1; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding-left: 47px; color: var(--muted); font-size: 10px; }
.course-status { padding: 4px 7px; border-radius: 999px; background: var(--line-soft); font-weight: 800; }
.course-status--available, .course-status--in_progress { background: var(--accent-soft); color: var(--accent-dark); }
.course-status--completed { background: var(--accent-dark); color: white; }
.course-lesson-step__button { grid-column: 2; grid-row: 1 / span 2; min-width: 142px; }
.course-lesson-start, .course-lesson-locked, .course-lesson-completion { display: grid; justify-items: center; padding: 30px 28px; text-align: center; }
.course-lesson-start h2, .course-lesson-locked h2, .course-lesson-completion h2 { margin: 0 0 7px; font-size: 22px; }
.course-lesson-start p, .course-lesson-locked p, .course-lesson-completion > p { max-width: 640px; margin: 0 0 20px; color: var(--muted); line-height: 1.55; }
.course-lesson-locked__icon, .course-lesson-completion__icon { display: grid; width: 54px; height: 54px; margin-bottom: 12px; place-items: center; border-radius: 50%; background: var(--accent-soft); color: var(--accent-dark); font-size: 24px; font-weight: 900; }
.course-lesson-completion__stats { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-bottom: 18px; }
.course-lesson-completion__stats span { padding: 7px 10px; border-radius: 999px; background: var(--canvas); color: var(--muted); font-size: 11px; font-weight: 750; }
.course-lesson-completion__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }

@media (max-width: 720px) {
  .learning-path-progress { grid-template-columns: 1fr; gap: 10px; }
  .course-lesson-hero, .course-lesson-theory, .course-lesson-practice { padding: 22px 18px; }
  .course-learning, .course-knowledge-check { padding: 22px 18px; }
  .course-learning-examples, .course-learning-mistake__comparison { grid-template-columns: 1fr; }
  .course-learning-section { padding: 16px; }
  .course-learning-summary { padding: 16px 18px; }
  .course-learning--collapsed > .course-learning-body { padding: 17px 18px 19px; }
  .trainer-rule-button { width: 38px; padding: 7px; justify-content: center; }
  .trainer-rule-button__label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
  .course-rule-dialog { width: calc(100% - 20px); max-height: calc(100vh - 20px); border-radius: 15px; }
  .course-rule-dialog__surface { max-height: calc(100vh - 20px); }
  .course-rule-dialog__head { padding: 17px 16px 14px; }
  .course-rule-dialog__copy h2 { font-size: 19px; }
  .course-learning-body--dialog { padding: 16px; }
  .course-knowledge-question__options { display: grid; }
  .course-knowledge-option { width: 100%; text-align: left; }
  .course-lesson-examples { grid-template-columns: 1fr; }
  .course-lesson-step { grid-template-columns: 1fr; }
  .course-lesson-step__meta { grid-column: 1; padding-left: 0; }
  .course-lesson-step__button { grid-column: 1; grid-row: auto; width: 100%; }
  .course-lesson-completion__actions { width: 100%; }
  .course-lesson-completion__actions .button { width: 100%; }
}
.dictionary-hero__eyebrow { color: var(--accent-dark); font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.dictionary-hero h1 { margin: 6px 0 4px; font-size: 28px; }
.dictionary-hero p { margin: 0; color: var(--muted); }
.dictionary-section { padding: 26px; }
.dictionary-section h2 { margin: 0 0 18px; font-size: 18px; }
.dictionary-group { display: grid; gap: 12px; margin-top: 24px; }
.dictionary-group:first-of-type { margin-top: 0; }
.dictionary-group__title { margin: 0; font-size: 16px; }
.dictionary-collections { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.dictionary-collection { position: relative; display: grid; align-items: center; min-height: 120px; overflow: hidden; padding: 18px; border: 1px solid var(--line-soft); border-radius: 14px; background-color: var(--canvas); color: inherit; text-decoration: none; cursor: pointer; transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease; }
.dictionary-collection:hover { border-color: var(--accent-line); box-shadow: 0 8px 20px rgb(20 31 38 / 7%); transform: translateY(-1px); }
.dictionary-collection:focus-visible { border-color: var(--accent); outline: 3px solid var(--accent-soft); outline-offset: 2px; }
.dictionary-collection__copy { position: relative; z-index: 1; display: grid; min-width: 0; gap: 8px; }
.dictionary-collection--with-background { background-image: linear-gradient(90deg, var(--canvas) 0%, color-mix(in srgb, var(--canvas) 94%, transparent) 38%, color-mix(in srgb, var(--canvas) 42%, transparent) 58%, transparent 72%), var(--dictionary-collection-background); background-position: center, center; background-repeat: no-repeat; background-size: 100% 100%, cover; }
.dictionary-collection--with-background .dictionary-collection__copy { max-width: 58%; }
.dictionary-collection h4 { margin: 0; font-size: 14px; }
.dictionary-collection p { margin: 0; color: var(--muted); font-size: 13px; }
.dictionary-modal { position: fixed; inset: 0; z-index: 80; display: grid; place-items: center; padding: 24px; }
.dictionary-modal__backdrop { position: absolute; inset: 0; background: rgb(20 31 38 / 42%); }
.dictionary-modal__dialog { position: relative; display: grid; width: min(620px, 100%); max-height: min(720px, 90vh); overflow: hidden; padding: 26px; border-radius: 18px; background: var(--white); box-shadow: 0 24px 70px rgb(20 31 38 / 20%); }
.dictionary-modal__close { position: absolute; top: 12px; right: 16px; border: 0; background: transparent; color: var(--muted); font-size: 26px; cursor: pointer; }
.dictionary-modal__dialog h2 { margin: 0; padding-right: 30px; font-size: 21px; }
.dictionary-modal__count { margin: 6px 0 18px; color: var(--muted); font-size: 13px; }
.dictionary-word-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; overflow-y: auto; padding-right: 4px; }
.dictionary-word { display: flex; min-width: 0; align-items: center; justify-content: space-between; gap: 16px; padding: 11px 13px; border: 1px solid var(--line-soft); border-radius: 10px; background: var(--canvas); }
.dictionary-word__copy { display: flex; min-width: 0; flex-wrap: wrap; align-items: baseline; gap: 3px 8px; }
.dictionary-word__copy strong { font-size: 14px; }
.dictionary-word__link { overflow-wrap: anywhere; color: inherit; font-size: 14px; font-weight: 700; text-decoration: none; }
.dictionary-word__link:hover { color: var(--accent-dark); text-decoration: underline; }
.dictionary-word__copy span { color: var(--faint); font-size: 12px; }
.dictionary-word__translation { min-width: 0; overflow-wrap: anywhere; color: var(--muted); font-size: 13px; text-align: right; }
.dictionary-word-detail { display: grid; gap: 8px; padding: 26px; }
.dictionary-word-detail__transcription { color: var(--accent-dark); font-size: 20px; font-weight: 700; }
.dictionary-word-detail p { margin: 0; color: var(--muted); font-size: 13px; }

@media (max-width: 900px) {
  .dictionary-word-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .trainer-catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .textbook-trainer-library__head { grid-template-columns: 1fr; align-items: start; }
  .textbook-trainer-library__stats { justify-self: start; }
  .textbook-trainer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .trainer-catalog-grid { grid-template-columns: 1fr; }
  .textbook-trainer-library__head { padding: 22px 20px; }
  .textbook-trainer-library__stats { width: 100%; }
  .textbook-trainer-library__stat { min-width: 0; }
  .textbook-trainer-level__summary { grid-template-columns: minmax(0, 1fr) auto; padding: 13px 15px; }
  .textbook-trainer-level__count { grid-column: 1 / -1; padding-left: 48px; }
  .textbook-trainer-level__summary::after { grid-column: 2; grid-row: 1; }
  .textbook-trainer-grid { grid-template-columns: 1fr; padding: 12px; }
}

.trainer-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.trainer-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--white);
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.trainer-card:hover {
  border-color: var(--accent-line);
  box-shadow: 0 10px 24px rgb(22 24 29 / 7%);
  transform: translateY(-2px);
}

.trainer-card__icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 800;
}

.trainer-card strong {
  display: block;
  font-size: 14.5px;
}

.trainer-card p {
  flex: 1;
  margin: -6px 0 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.5;
}

.trainer-card span:last-child {
  color: var(--accent-dark);
  font-size: 12.5px;
  font-weight: 700;
}

.profile-grid {
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 24px;
}

.profile-summary {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 26px;
  text-align: center;
}

.profile-avatar {
  width: 88px;
  height: 88px;
  margin-bottom: 8px;
  border: 3px solid var(--white);
  background-position: center;
  background-size: cover;
  box-shadow: 0 0 0 2px var(--accent);
}

.profile-summary h1 {
  margin: 0;
  font-size: 19px;
}

.profile-summary p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.profile-summary .badge {
  position: absolute;
  top: 18px;
  right: 18px;
  margin: 0;
}

.profile-summary .button {
  width: 100%;
  margin-top: 12px;
}

.profile-modal { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; padding: 20px; }
.profile-modal__backdrop { position: absolute; inset: 0; background: rgb(20 31 38 / 48%); }
.profile-modal__dialog { position: relative; width: min(100%, 820px); max-height: calc(100vh - 40px); overflow-y: auto; padding: 28px; border-radius: 20px; background: var(--white); box-shadow: 0 20px 60px rgb(20 31 38 / 22%); }
.profile-modal__dialog h2 { margin: 0 0 22px; }
.profile-modal__close { position: absolute; top: 12px; right: 16px; border: 0; background: transparent; color: var(--muted); font-size: 28px; cursor: pointer; }
.profile-form { display: grid; gap: 16px; }
.profile-form__layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 28px; align-items: start; }
.profile-form__details { display: grid; gap: 16px; }
.profile-form label { display: grid; gap: 7px; color: var(--muted); font-size: 13px; font-weight: 700; }
.profile-form input { width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 10px; font: inherit; color: var(--ink); }
.avatar-picker { margin: 0; padding: 0; border: 0; }
.avatar-picker legend { margin-bottom: 8px; color: var(--muted); font-size: 13px; font-weight: 700; }
.avatar-picker__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.avatar-picker__option { position: relative; display: block !important; cursor: pointer; }
.avatar-picker__option input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.avatar-picker__option img { display: block; width: 100%; height: auto; border: 3px solid transparent; border-radius: 50%; transition: border-color .15s, transform .15s; }
.avatar-picker__option input:checked + img { border-color: var(--accent); transform: scale(.94); }
.avatar-picker__option input:focus-visible + img { outline: 3px solid color-mix(in srgb, var(--accent) 35%, transparent); outline-offset: 2px; }
.profile-form__password { display: grid; gap: 12px; margin: 4px 0 0; padding: 16px; border: 1px solid var(--line); border-radius: 12px; }
.profile-form__password legend { padding: 0 6px; font-weight: 700; }
.profile-form__password p { margin: -4px 0 2px; color: var(--muted); font-size: 12px; }
.profile-modal__dialog--compact { width: min(100%, 840px); max-height: none; overflow: visible; }
.goal-reasons { margin: 0; padding: 0; border: 0; }
.goal-reasons legend { margin-bottom: 10px; color: var(--muted); font-size: 13px; font-weight: 700; }
.goal-reasons__list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; padding: 2px; }
.goal-reason-option { display: flex !important; grid-template-columns: none !important; gap: 10px !important; align-items: flex-start; padding: 12px; border: 1px solid var(--line); border-radius: 12px; cursor: pointer; transition: border-color .15s, background-color .15s; }
.goal-reason-option:hover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 6%, var(--white)); }
.goal-reason-option input { width: auto; margin-top: 3px; accent-color: var(--accent); }
.goal-reason-option span { display: grid; gap: 3px; }
.goal-reason-option strong { color: var(--ink); font-size: 14px; }
.goal-reason-option small { color: var(--muted); font-size: 12px; line-height: 1.35; font-weight: 400; }
.goal-reason-option:has(input:checked) { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 9%, var(--white)); box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 18%, transparent); }

@media (max-width: 520px) {
  .goal-reasons__list { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .profile-modal__dialog--compact { max-height: calc(100vh - 40px); overflow-y: auto; }
  .goal-reasons__list { max-height: min(56vh, 440px); overflow-y: auto; }
}
.profile-form__actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 6px; }

@media (max-width: 700px) {
  .profile-modal__dialog { padding: 24px 20px; }
  .profile-form__layout { grid-template-columns: 1fr; }
  .avatar-picker__grid { grid-template-columns: repeat(5, 1fr); }
}

.data-card,
.subscription-summary {
  padding: 22px 24px;
}

.data-card h2,
.subscription-summary h2,
.goal-card h2,
.stats-card h2,
.achievements-card h2,
.payment-history h2 {
  margin: 0;
  font-size: 15px;
}

.data-card h2 {
  margin-bottom: 14px;
}

.detail-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0;
  font-size: 13.5px;
}

.detail-list div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.detail-list dt {
  color: var(--faint);
}

.detail-list dd {
  margin: 0;
  font-weight: 700;
  text-align: right;
}

.subscription-summary__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 7px;
}

.subscription-summary p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.6;
}

.subscription-summary .text-link {
  display: inline-block;
  margin-top: 10px;
}

.goal-card,
.stats-card,
.achievements-card,
.payment-history {
  padding: 24px 28px;
}

.heading-row {
  margin-bottom: 16px;
}

.goal-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.goal-item {
  padding: 16px 18px;
  border-radius: 12px;
  background: var(--canvas);
}

.goal-item span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.goal-item strong {
  display: block;
  margin-top: 4px;
  font-size: 15px;
}

.stat-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stat-card-item {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.stat-card-item strong {
  display: block;
  margin-bottom: 2px;
  font-size: 22px;
  font-weight: 800;
}

.stat-card-item span {
  color: var(--muted);
  font-size: 12.5px;
}

.activity-head {
  display: flex;
  justify-content: space-between;
  margin: 18px 0 8px;
  color: var(--muted);
  font-size: 13px;
}

.activity-chart {
  display: flex;
  height: 56px;
  align-items: flex-end;
  gap: 4px;
}

.activity-chart span {
  height: var(--height, 50%);
  flex: 1;
  border-radius: 4px;
  background: color-mix(in oklch, var(--accent) var(--strength, 70%), white);
}

.achievement-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.achievement {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  text-align: center;
}

.achievement--locked {
  opacity: 0.45;
}

.achievement__icon {
  display: grid;
  width: 44px;
  height: 44px;
  margin: 0 auto 8px;
  place-items: center;
  border-radius: 50%;
  background: var(--accent-soft);
  font-size: 20px;
}

.achievement strong {
  font-size: 12.5px;
}

.subscription-shell {
  max-width: none;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--faint);
  font-size: 13.5px;
}

.breadcrumb [aria-current="page"] {
  color: var(--ink);
  font-weight: 700;
}

.subscription-top {
  grid-template-columns: minmax(0, 1fr) minmax(300px, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}

.plan-card {
  position: relative;
  overflow: hidden;
  padding: 28px;
}

.plan-card::after {
  position: absolute;
  top: -40px;
  right: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: oklch(0.52 0.19 262 / 25%);
  content: "";
}

.plan-card > * {
  position: relative;
  z-index: 1;
}

.plan-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.plan-card__head strong {
  font-size: 17px;
}

.plan-card__label {
  margin: 0 0 6px;
  color: #9aa0ae;
  font-size: 13.5px;
}

.plan-card__date {
  margin: 0 0 14px;
  font-size: 26px;
  font-weight: 800;
}

.plan-card .progress-track {
  height: 8px;
  background: rgb(255 255 255 / 15%);
}

.plan-card .progress-track__bar {
  background: oklch(0.62 0.17 262);
}

.plan-card__progress-copy {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  color: #9aa0ae;
  font-size: 12.5px;
}

.plan-card__actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.payment-card {
  flex: 1;
  padding: 22px 24px;
}

.payment-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.payment-card__head strong {
  font-size: 14.5px;
}

.bank-card {
  display: flex;
  align-items: center;
  gap: 14px;
}

.bank-card__logo {
  display: grid;
  width: 48px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--canvas);
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}

.bank-card strong,
.bank-card span {
  display: block;
}

.bank-card strong { font-size: 14px; }
.bank-card span {
  margin-top: 2px;
  color: var(--faint);
  font-size: 12.5px;
}

.toggle {
  position: relative;
  width: 44px;
  height: 26px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  cursor: pointer;
}

.toggle::after {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--white);
  content: "";
  transition: transform 160ms ease;
}

.toggle[aria-pressed="false"] {
  background: #c7cbd4;
}

.toggle[aria-pressed="false"]::after {
  transform: translateX(-18px);
}

.payment-card > p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.payment-history {
  margin-bottom: 20px;
}

.payment-history h2 {
  margin-bottom: 16px;
}

.payment-table {
  display: flex;
  flex-direction: column;
}

.payment-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 0.8fr 0.6fr;
  gap: 12px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid #f3f4f8;
  font-size: 14px;
}

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

.payment-row--head {
  padding: 10px 0;
  border-color: var(--line-soft);
  color: var(--faint);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.payment-row > :last-child {
  text-align: right;
}

.payment-row .text-link {
  font-size: 13px;
}

.payment-note {
  display: block;
  margin-top: 2px;
  color: var(--faint);
  font-size: 12px;
}

.saving-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 28px;
}

.saving-card__copy {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.5;
}

.app-footer {
  display: flex;
  width: min(100%, var(--app-shell-width));
  align-items: center;
  min-height: 64px;
  margin: 0 auto;
  padding: 18px 40px;
  border-top: 1px solid var(--line-soft);
  background: var(--white);
  color: var(--faint);
  font-size: 12.5px;
}

.app-footer__inner {
  display: flex;
  width: min(100%, var(--app-content-width));
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
}

.app-footer__brand,
.app-footer nav {
  display: flex;
  align-items: center;
}

.app-footer__brand { gap: 9px; }
.app-footer nav { gap: 18px; }

.app-footer .brand__mark {
  width: 20px;
  height: 20px;
  border-radius: 6px;
  font-size: 10px;
}

.mobile-nav {
  display: none;
}

/* API-driven application shell */
.app-shell-page {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.app-shell-page #app {
  flex: 1;
}

.app-state {
  min-height: 430px;
  padding: 34px;
}

.app-loading__line,
.app-loading__grid span {
  background: linear-gradient(100deg, var(--line-soft) 25%, #f7f8fb 42%, var(--line-soft) 60%);
  background-size: 220% 100%;
  animation: app-loading-pulse 1.4s ease-in-out infinite;
}

.app-loading__line {
  width: min(100%, 520px);
  height: 15px;
  border-radius: 999px;
}

.app-loading__line--title {
  width: min(70%, 310px);
  height: 27px;
  margin-bottom: 16px;
}

.app-loading__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.app-loading__grid span {
  min-height: 210px;
  border-radius: 16px;
}

.app-error {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  justify-content: center;
}

.app-error__code {
  display: inline-flex;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.app-error h1 {
  margin: 18px 0 8px;
  font-size: 24px;
}

.app-error p {
  max-width: 560px;
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.6;
}

.app-shell-page noscript {
  display: block;
  padding: 18px;
  border: 1px solid var(--danger);
  border-radius: 12px;
  background: var(--danger-soft);
}

@keyframes app-loading-pulse {
  from { background-position: 100% 0; }
  to { background-position: -100% 0; }
}

/* Authentication */
.auth-root {
  width: 100%;
  min-height: 100vh;
}

.auth-page {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  background: var(--white);
}

.auth-header {
  display: flex;
  min-height: 70px;
  align-items: center;
  justify-content: space-between;
  padding: 16px max(32px, calc((100vw - 1120px) / 2));
  border-bottom: 1px solid var(--line-soft);
}

.auth-header__link {
  color: var(--muted);
  font-size: 13.5px;
  font-weight: 600;
}

.auth-layout {
  display: grid;
  width: min(100%, 1120px);
  min-height: calc(100vh - 70px);
  grid-template-columns: minmax(0, 1fr) 460px;
  align-items: stretch;
  margin: 0 auto;
}

.auth-aside {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 72px;
  background: var(--ink);
  color: var(--white);
}

.auth-aside .badge {
  width: fit-content;
  margin-bottom: 18px;
}

.auth-aside h1 {
  margin: 0 0 16px;
  font-size: clamp(34px, 4vw, 50px);
  line-height: 1.08;
  text-wrap: balance;
}

.auth-aside p {
  margin: 0;
  color: #b8bdc8;
  font-size: 16px;
  line-height: 1.65;
}

.auth-points {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.auth-points li {
  display: flex;
  gap: 10px;
  color: #d9dce3;
  font-size: 14px;
}

.auth-points li::before {
  color: #7ee2a8;
  content: "✓";
  font-weight: 800;
}

.auth-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 56px;
}

.auth-panel h2 {
  margin: 0 0 8px;
  font-size: 28px;
}

.auth-panel__lead {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field label {
  font-size: 13px;
  font-weight: 700;
}

.field input,
.field textarea,
.dialog-composer input,
.listening-answer {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--white);
  color: var(--ink);
  outline: 0;
}

.field input {
  min-height: 49px;
  padding: 13px 15px;
}

.field input::placeholder,
.field textarea::placeholder,
.dialog-composer input::placeholder,
.listening-answer::placeholder {
  color: #a8adb9;
}

.field input:focus,
.field textarea:focus,
.dialog-composer input:focus,
.listening-answer:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px oklch(0.52 0.19 262 / 12%);
}

.form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 12.5px;
}

.check-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.check-row input {
  accent-color: var(--accent);
}

.auth-switch {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 13.5px;
  text-align: center;
}

.auth-switch a,
.form-row a {
  color: var(--accent-dark);
  font-weight: 700;
}

.form-hint {
  margin: -4px 0 0;
  color: var(--faint);
  font-size: 11.5px;
  line-height: 1.5;
}

.auth-form-status {
  margin: -4px 0 0;
  font-size: 12.5px;
  line-height: 1.5;
}

.auth-form-status--success { color: var(--success); }
.auth-form-status--error { color: var(--danger); }

/* Trainers */
.trainer-body {
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: #eef0f4;
}

.trainer-frame {
  display: flex;
  width: min(100%, 1200px);
  min-height: min(720px, calc(100vh - 48px));
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.trainer-frame--embedded {
  width: min(calc(100% - 80px), 1200px);
  min-height: 680px;
  margin: 32px auto 40px;
}

.trainer-frame > .app-state {
  width: calc(100% - 48px);
  margin: auto;
}

.trainer-header {
  display: flex;
  min-height: 67px;
  align-items: center;
  gap: 16px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line-soft);
  background: var(--white);
}

.trainer-header .progress-track {
  flex: 1;
}

.trainer-header__copy {
  min-width: 0;
  flex: 1;
}

.trainer-header__copy strong,
.trainer-header__copy span {
  display: block;
}

.trainer-header__copy strong {
  overflow: hidden;
  font-size: 15.5px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.trainer-header__copy span {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12.5px;
}

.close-button {
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  color: var(--muted);
  cursor: pointer;
  font-size: 16px;
}

.trainer-progress-copy,
.hearts,
.timer {
  flex: 0 0 auto;
  font-size: 13px;
  font-weight: 700;
}

.trainer-progress-copy { color: var(--muted); }

.hearts {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--danger);
  font-size: 14.5px;
}

.timer {
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.trainer-main {
  min-height: 0;
  flex: 1;
}

.trainer-footer {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 40px 24px;
  border-top: 1px solid var(--line-soft);
  background: var(--white);
}

.center-stage,
.phrase-builder-stage,
.pronunciation-stage,
.pairs-stage {
  display: flex;
  height: 100%;
  min-height: 540px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.center-stage {
  gap: 30px;
  padding: 40px;
}

.center-stage h1,
.pronunciation-stage h1,
.pairs-stage h1,
.phrase-builder-stage h1 {
  margin: 0;
  font-size: 26px;
  font-weight: 800;
  text-align: center;
}

.audio-controls {
  display: flex;
  align-items: center;
  gap: 22px;
}

.round-button {
  display: grid;
  width: 88px;
  height: 88px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 10px 28px oklch(0.52 0.19 262 / 35%);
  cursor: pointer;
  font-size: 30px;
}

.round-button--small {
  width: 56px;
  height: 56px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--muted);
  box-shadow: none;
  font-size: 20px;
}

.listening-form {
  width: min(100%, 640px);
}

.listening-answer {
  height: 110px;
  padding: 18px 20px;
  resize: none;
  background: var(--canvas);
  font-size: 16px;
  line-height: 1.6;
}

.answer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 10px;
  color: var(--faint);
  font-size: 12.5px;
}

.word-chip {
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: 0 2px 0 var(--line);
  cursor: pointer;
  font-weight: 600;
}

.pairs-stage {
  min-height: 600px;
  align-items: stretch;
  justify-content: flex-start;
  gap: 22px;
  padding: 32px 40px 38px;
}

.pairs-stage h1 {
  text-align: left;
}

.pairs-heading {
  display: flex;
  width: 100%;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.pairs-heading h1,
.pairs-heading p {
  margin: 0;
}

.pairs-heading p {
  margin-top: 7px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.pairs-selection-note {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
}

.pairs-selection-note span {
  padding: 6px 10px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: var(--canvas);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.pairs-toolbar {
  display: flex;
  width: 100%;
  justify-content: flex-end;
}

.pairs-collection {
  display: flex;
  align-items: center;
  gap: 10px;
}

.pairs-collection__label {
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 700;
}

.pairs-collection__select {
  min-width: 250px;
  min-height: 42px;
  padding: 8px 34px 8px 12px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
}

.pairs-board {
  display: grid;
  width: min(100%, 780px);
  margin: 0 auto;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 34px;
}

.pairs-column {
  min-width: 0;
}

.pairs-column__title {
  margin: 0 0 10px;
  color: var(--faint);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.pairs-column__list {
  display: grid;
  gap: 12px;
}

.pair-button {
  min-height: 62px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--white);
  box-shadow: 0 2px 0 var(--line);
  color: var(--ink);
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.35;
  transition: border-color 140ms ease, background 140ms ease, color 140ms ease, transform 140ms ease;
}

.pair-button:hover:not(:disabled) {
  border-color: var(--accent-line);
  transform: translateY(-1px);
}

.pair-button.is-selected,
.pair-button[aria-pressed="true"] {
  border: 2px solid var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 2px 0 var(--accent-line);
  color: var(--accent-dark);
}

.pair-button.is-matched {
  border-color: #bde6cf;
  background: #effaf4;
  box-shadow: none;
  color: #719583;
  cursor: default;
  opacity: 0.72;
}

.pair-button.is-wrong {
  border-color: var(--danger);
  background: #fff3f3;
  color: var(--danger);
  animation: shake 220ms linear;
}

.pairs-footer {
  color: var(--muted);
  font-size: 13px;
}

.pairs-counters {
  display: flex;
  align-items: center;
  gap: 20px;
}

.pairs-counters strong {
  color: var(--ink);
}

.pairs-footer__hint {
  margin: 0;
}

.pairs-summary {
  display: flex;
  min-height: 560px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 18px;
  padding: 42px 40px;
  text-align: center;
}

.pairs-summary__icon {
  display: grid;
  width: 70px;
  height: 70px;
  place-items: center;
  border-radius: 50%;
  background: #e9f9f0;
  color: var(--success);
  font-size: 32px;
  font-weight: 800;
}

.pairs-summary h1,
.pairs-summary__lead,
.pairs-summary__note {
  margin: 0;
}

.pairs-summary h1 {
  font-size: 28px;
}

.pairs-summary__lead,
.pairs-summary__note {
  color: var(--muted);
  line-height: 1.55;
}

.pairs-summary__stats {
  display: grid;
  width: min(100%, 700px);
  margin-top: 8px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.pairs-summary__stat {
  padding: 18px 14px;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: var(--canvas);
}

.pairs-summary__stat strong,
.pairs-summary__stat span {
  display: block;
}

.pairs-summary__stat strong {
  font-size: 20px;
}

.pairs-summary__stat span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.pronunciation-stage {
  gap: 24px;
  padding: 40px;
}

.pronunciation-phrase {
  display: flex;
  max-width: 850px;
  align-items: center;
  gap: 16px;
  padding: 22px 28px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--canvas);
}

.pronunciation-phrase__copy strong,
.pronunciation-phrase__copy span {
  display: block;
}

.pronunciation-phrase__copy strong {
  font-size: 23px;
  line-height: 1.45;
}

.pronunciation-phrase__copy span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13.5px;
}

.word-good { color: var(--success); }
.word-error {
  border-bottom: 3px solid var(--danger);
  color: var(--danger);
}

.waveform {
  display: flex;
  height: 44px;
  align-items: center;
  gap: 5px;
}

.waveform span {
  width: 5px;
  height: var(--height, 20px);
  border-radius: 3px;
  background: var(--accent);
  opacity: var(--opacity, 1);
}

.coach-note {
  display: flex;
  max-width: 600px;
  align-items: center;
  gap: 14px;
  padding: 16px 22px;
  border: 1px solid var(--accent-line);
  border-radius: 14px;
  background: oklch(0.98 0.01 262);
  font-size: 13.5px;
  line-height: 1.55;
}

.record-row {
  display: flex;
  align-items: center;
  gap: 18px;
}

.record-button {
  display: grid;
  width: 76px;
  height: 76px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--danger);
  color: var(--white);
  box-shadow: 0 8px 22px rgb(214 69 69 / 35%);
  cursor: pointer;
  font-size: 26px;
}

.phrase-builder-stage {
  align-items: stretch;
  justify-content: flex-start;
  gap: 22px;
  padding: 34px max(28px, 8vw);
}

.phrase-builder-stage h1 {
  text-align: left;
}

.phrase-builder-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.phrase-builder-heading__meta {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
}

.phrase-builder-heading__id {
  flex: 0 0 auto;
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.phrase-builder-heading__id {
  background: var(--canvas);
  color: var(--muted);
}

.phrase-builder-level-picker {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 20px 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.phrase-builder-level-picker__buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
}

.phrase-builder-level-picker__button {
  min-width: 48px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease;
}

.phrase-builder-level-picker__button:hover:not(:disabled) {
  border-color: var(--accent-line);
  color: var(--accent-dark);
}

.phrase-builder-level-picker__button.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--white);
}

.phrase-builder-level-picker__button:focus-visible {
  border-color: var(--accent);
  outline: 3px solid var(--accent-soft);
}

.phrase-builder-level-picker__button:disabled { cursor: wait; }

.phrase-prompt {
  display: flex;
  align-items: center;
  gap: 12px;
}

.phrase-prompt__avatar {
  display: block;
  width: 52px;
  height: 52px;
  flex: 0 0 52px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--accent-soft);
  object-fit: cover;
  overflow: hidden;
}

.phrase-prompt__bubble {
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 14px 14px 14px 4px;
  background: var(--canvas);
  font-size: 18px;
  font-weight: 600;
}

.phrase-response {
  display: flex;
  align-items: center;
  gap: 12px;
}

.phrase-response__avatar {
  display: block;
  width: 52px;
  height: 52px;
  flex: 0 0 52px;
  border: 1px solid var(--accent-line);
  border-radius: 50%;
  background: var(--accent-soft);
  object-fit: cover;
  overflow: hidden;
}

.selected-words {
  display: flex;
  min-width: 0;
  min-height: 112px;
  flex: 1;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 9px;
  padding: 14px 18px;
  border: 1px solid var(--accent-line);
  border-radius: 14px 14px 4px 14px;
  background: var(--accent-soft);
}

.word-bank {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 9px;
}

.word-chip {
  padding: 11px 16px;
  border-radius: 11px;
  font-size: 15px;
}

.word-chip:disabled {
  border-color: var(--line-soft);
  background: var(--canvas);
  box-shadow: none;
  color: #c3c8d4;
  cursor: default;
}

.phrase-builder-summary {
  display: grid;
  min-height: 540px;
  place-content: center;
  justify-items: center;
  gap: 22px;
  padding: 40px;
  text-align: center;
}

.phrase-builder-summary__icon {
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  border-radius: 50%;
  background: var(--success-soft);
  color: var(--success);
  font-size: 32px;
  font-weight: 800;
}

.phrase-builder-summary h1 { margin: 0; font-size: 28px; }
.phrase-builder-summary__stats { display: grid; width: min(100%, 680px); grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.phrase-builder-summary__stat { display: grid; gap: 5px; padding: 18px 14px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.phrase-builder-summary__stat strong { color: var(--accent-dark); font-size: 22px; }
.phrase-builder-summary__stat span { color: var(--muted); font-size: 12px; }
.phrase-builder-summary__note { margin: 0; color: var(--muted); font-size: 13px; }

.irregular-verbs-stage {
  display: flex;
  min-height: 540px;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 24px;
  padding: 34px max(28px, 8vw);
}

.irregular-verbs-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.irregular-verbs-heading h1 {
  margin: 0;
  font-size: 26px;
}

.irregular-verbs-heading p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13.5px;
}

.irregular-verbs-heading__level {
  min-width: 44px;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--canvas);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-align: center;
}

.irregular-verbs-level-picker {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.irregular-verbs-level-picker__buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
}

.irregular-verbs-level-picker__button {
  min-width: 48px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease;
}

.irregular-verbs-level-picker__button:hover:not(:disabled) {
  border-color: var(--accent-line);
  color: var(--accent-dark);
}

.irregular-verbs-level-picker__button.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--white);
}

.irregular-verbs-level-picker__button:focus-visible {
  border-color: var(--accent);
  outline: 3px solid var(--accent-soft);
}

.irregular-verbs-level-picker__button:disabled { cursor: wait; }

.irregular-verbs-prompt {
  display: grid;
  justify-items: center;
  gap: 5px;
  padding: 18px 22px;
  border: 1px solid var(--accent-line);
  border-radius: 16px;
  background: var(--accent-soft);
  text-align: center;
}

.irregular-verbs-prompt span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.irregular-verbs-prompt strong { font-size: 21px; }
.irregular-verbs-form { width: 100%; }

.irregular-verbs-fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.irregular-verbs-field {
  display: grid;
  min-width: 0;
  gap: 8px;
}

.irregular-verbs-field__label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.irregular-verbs-field--readonly strong,
.irregular-verbs-input {
  min-height: 58px;
  padding: 15px 17px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--white);
  color: var(--text);
  font: inherit;
  font-size: 17px;
  font-weight: 700;
}

.irregular-verbs-field--readonly strong {
  display: flex;
  align-items: center;
  background: var(--canvas);
}

.irregular-verbs-input:focus {
  border-color: var(--accent);
  outline: 3px solid var(--accent-soft);
}

.irregular-verbs-input.is-correct {
  border-color: var(--success);
  background: var(--success-soft);
  color: var(--success);
}

.irregular-verbs-input.is-error {
  border-color: var(--danger);
  background: var(--danger-soft);
  color: var(--danger);
}

.irregular-verbs-input:disabled {
  cursor: default;
  opacity: 1;
}

.irregular-verbs-summary {
  display: grid;
  min-height: 540px;
  place-content: center;
  justify-items: center;
  gap: 22px;
  padding: 40px;
  text-align: center;
}

.irregular-verbs-summary__icon {
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  border-radius: 50%;
  background: var(--success-soft);
  color: var(--success);
  font-size: 32px;
  font-weight: 800;
}

.irregular-verbs-summary__icon.is-error {
  background: var(--danger-soft);
  color: var(--danger);
}

.irregular-verbs-summary h1 { margin: 0; font-size: 28px; }
.irregular-verbs-summary__stats { display: grid; width: min(100%, 680px); grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.irregular-verbs-summary__stat { display: grid; gap: 5px; padding: 18px 14px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.irregular-verbs-summary__stat strong { color: var(--accent-dark); font-size: 22px; }
.irregular-verbs-summary__stat span { color: var(--muted); font-size: 12px; }
.irregular-verbs-summary__note { margin: 0; color: var(--muted); font-size: 13px; }

.phrasal-verbs-stage {
  display: flex;
  min-height: 540px;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 20px;
  padding: 34px max(28px, 8vw);
}

.phrasal-verbs-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.phrasal-verbs-heading h1 {
  margin: 0;
  font-size: 26px;
}

.phrasal-verbs-heading p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13.5px;
}

.phrasal-verbs-heading__level {
  min-width: 44px;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--canvas);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-align: center;
}

.phrasal-verbs-level-picker {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.phrasal-verbs-level-picker__buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
}

.phrasal-verbs-level-picker__button {
  min-width: 48px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease;
}

.phrasal-verbs-level-picker__button:hover:not(:disabled) {
  border-color: var(--accent-line);
  color: var(--accent-dark);
}

.phrasal-verbs-level-picker__button.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--white);
}

.phrasal-verbs-level-picker__button:focus-visible {
  border-color: var(--accent);
  outline: 3px solid var(--accent-soft);
}

.phrasal-verbs-level-picker__button:disabled { cursor: wait; }

.phrasal-verbs-meaning {
  display: grid;
  justify-items: center;
  gap: 5px;
  padding: 16px 22px;
  border: 1px solid var(--accent-line);
  border-radius: 16px;
  background: var(--accent-soft);
  text-align: center;
}

.phrasal-verbs-meaning span,
.phrasal-verbs-context__label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.phrasal-verbs-meaning strong { font-size: 20px; }

.phrasal-verbs-context {
  display: grid;
  gap: 10px;
  padding: 21px 24px;
  border: 1px solid var(--line-soft);
  border-radius: 16px;
  background: var(--canvas);
  text-align: center;
}

.phrasal-verbs-context__sentence {
  margin: 0;
  color: var(--text);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.5;
}

.phrasal-verbs-context__gap {
  display: inline-block;
  min-width: 116px;
  margin: 0 4px;
  border-bottom: 2px solid var(--accent);
  color: var(--accent-dark);
  line-height: 1.25;
}

.phrasal-verbs-context__translation {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.phrasal-verbs-form {
  width: min(100%, 680px);
  margin: 0 auto;
}

.phrasal-verbs-field {
  display: grid;
  gap: 8px;
}

.phrasal-verbs-field__label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.phrasal-verbs-input {
  width: 100%;
  min-height: 58px;
  padding: 15px 17px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--white);
  color: var(--text);
  font: inherit;
  font-size: 17px;
  font-weight: 700;
  text-align: center;
}

.phrasal-verbs-input:focus {
  border-color: var(--accent);
  outline: 3px solid var(--accent-soft);
}

.phrasal-verbs-input.is-correct {
  border-color: var(--success);
  background: var(--success-soft);
  color: var(--success);
}

.phrasal-verbs-input.is-error {
  border-color: var(--danger);
  background: var(--danger-soft);
  color: var(--danger);
}

.phrasal-verbs-input:disabled {
  cursor: default;
  opacity: 1;
}

.phrasal-verbs-summary {
  display: grid;
  min-height: 540px;
  place-content: center;
  justify-items: center;
  gap: 22px;
  padding: 40px;
  text-align: center;
}

.phrasal-verbs-summary__icon {
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  border-radius: 50%;
  background: var(--success-soft);
  color: var(--success);
  font-size: 32px;
  font-weight: 800;
}

.phrasal-verbs-summary__icon.is-error {
  background: var(--danger-soft);
  color: var(--danger);
}

.phrasal-verbs-summary h1 { margin: 0; font-size: 28px; }
.phrasal-verbs-summary__stats { display: grid; width: min(100%, 680px); grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.phrasal-verbs-summary__stat { display: grid; gap: 5px; padding: 18px 14px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.phrasal-verbs-summary__stat strong { color: var(--accent-dark); font-size: 22px; }
.phrasal-verbs-summary__stat span { color: var(--muted); font-size: 12px; }
.phrasal-verbs-summary__note { margin: 0; color: var(--muted); font-size: 13px; }

.prepositions-stage {
  display: flex;
  min-height: 540px;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 20px;
  padding: 34px max(28px, 8vw);
}

.prepositions-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.prepositions-heading h1 {
  margin: 0;
  font-size: 26px;
}

.prepositions-heading p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13.5px;
}

.prepositions-heading__level {
  min-width: 44px;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--canvas);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-align: center;
}

.prepositions-level-picker {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.prepositions-level-picker__buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
}

.prepositions-level-picker__button {
  min-width: 48px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease;
}

.prepositions-level-picker__button:hover:not(:disabled) {
  border-color: var(--accent-line);
  color: var(--accent-dark);
}

.prepositions-level-picker__button.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--white);
}

.prepositions-level-picker__button:focus-visible {
  border-color: var(--accent);
  outline: 3px solid var(--accent-soft);
}

.prepositions-level-picker__button:disabled { cursor: wait; }

.prepositions-form {
  display: grid;
  width: min(100%, 760px);
  margin: 0 auto;
  gap: 20px;
}

.prepositions-context {
  display: grid;
  gap: 10px;
  padding: 24px;
  border: 1px solid var(--line-soft);
  border-radius: 16px;
  background: var(--canvas);
  text-align: center;
}

.prepositions-context__sentence {
  margin: 0;
  color: var(--text);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.55;
}

.prepositions-context__gap {
  display: inline-block;
  min-width: 104px;
  margin: 0 4px;
  border-bottom: 2px solid var(--accent);
  color: var(--accent-dark);
  line-height: 1.25;
}

.prepositions-context__translation {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.prepositions-options {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.prepositions-options__legend {
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.prepositions-options__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.prepositions-option {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 58px;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--white);
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease;
}

.prepositions-option:hover:not(.is-error):not(.is-correct) {
  border-color: var(--accent-line);
}

.prepositions-option.is-selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.prepositions-option.is-error {
  border-color: var(--danger);
  background: var(--danger-soft);
  color: var(--danger);
  cursor: default;
}

.prepositions-option.is-correct {
  border-color: var(--success);
  background: var(--success-soft);
  color: var(--success);
  cursor: default;
}

.prepositions-option__input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}

.prepositions-option__marker {
  display: grid;
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  place-items: center;
  border: 2px solid var(--line);
  border-radius: 50%;
  background: var(--white);
}

.prepositions-option__marker::after {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
  content: '';
  opacity: 0;
}

.prepositions-option.is-selected .prepositions-option__marker,
.prepositions-option.is-error .prepositions-option__marker,
.prepositions-option.is-correct .prepositions-option__marker {
  border-color: currentColor;
}

.prepositions-option.is-selected .prepositions-option__marker::after,
.prepositions-option.is-error .prepositions-option__marker::after,
.prepositions-option.is-correct .prepositions-option__marker::after {
  opacity: 1;
}

.prepositions-option__input:focus-visible + .prepositions-option__marker {
  outline: 3px solid var(--accent-soft);
  outline-offset: 3px;
}

.prepositions-option__copy {
  overflow-wrap: anywhere;
  font-size: 16px;
  font-weight: 750;
}

.prepositions-summary {
  display: grid;
  min-height: 540px;
  place-content: center;
  justify-items: center;
  gap: 22px;
  padding: 40px;
  text-align: center;
}

.prepositions-summary__icon {
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  border-radius: 50%;
  background: var(--success-soft);
  color: var(--success);
  font-size: 32px;
  font-weight: 800;
}

.prepositions-summary__icon.is-error {
  background: var(--danger-soft);
  color: var(--danger);
}

.prepositions-summary h1 { margin: 0; font-size: 28px; }
.prepositions-summary__stats { display: grid; width: min(100%, 680px); grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.prepositions-summary__stat { display: grid; gap: 5px; padding: 18px 14px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.prepositions-summary__stat strong { color: var(--accent-dark); font-size: 22px; }
.prepositions-summary__stat span { color: var(--muted); font-size: 12px; }
.prepositions-summary__note { margin: 0; color: var(--muted); font-size: 13px; }

.articles-stage {
  display: flex;
  min-height: 540px;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 20px;
  padding: 34px max(28px, 8vw);
}

.articles-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.articles-heading h1 {
  margin: 0;
  font-size: 26px;
}

.articles-heading p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13.5px;
}

.articles-heading__level {
  min-width: 44px;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--canvas);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-align: center;
}

.articles-level-picker {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.articles-level-picker__buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
}

.articles-level-picker__button {
  min-width: 48px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease;
}

.articles-level-picker__button:hover:not(:disabled) {
  border-color: var(--accent-line);
  color: var(--accent-dark);
}

.articles-level-picker__button.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--white);
}

.articles-level-picker__button:focus-visible {
  border-color: var(--accent);
  outline: 3px solid var(--accent-soft);
}

.articles-level-picker__button:disabled { cursor: wait; }

.articles-form {
  display: grid;
  width: min(100%, 760px);
  margin: 0 auto;
  gap: 20px;
}

.articles-context {
  display: grid;
  gap: 10px;
  padding: 24px;
  border: 1px solid var(--line-soft);
  border-radius: 16px;
  background: var(--canvas);
  text-align: center;
}

.articles-context__sentence {
  margin: 0;
  color: var(--text);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.55;
}

.articles-context__gap {
  display: inline-block;
  min-width: 72px;
  margin: 0 4px;
  border-bottom: 2px solid var(--accent);
  color: var(--accent-dark);
  line-height: 1.25;
}

.articles-context__translation {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.articles-options {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.articles-options__legend {
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

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

.articles-option {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 66px;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--white);
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease;
}

.articles-option:hover:not(.is-error):not(.is-correct) {
  border-color: var(--accent-line);
}

.articles-option.is-selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.articles-option.is-error {
  border-color: var(--danger);
  background: var(--danger-soft);
  color: var(--danger);
  cursor: default;
}

.articles-option.is-correct {
  border-color: var(--success);
  background: var(--success-soft);
  color: var(--success);
  cursor: default;
}

.articles-option__input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}

.articles-option__marker {
  display: grid;
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  place-items: center;
  border: 2px solid var(--line);
  border-radius: 50%;
  background: var(--white);
}

.articles-option__marker::after {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
  content: '';
  opacity: 0;
}

.articles-option.is-selected .articles-option__marker,
.articles-option.is-error .articles-option__marker,
.articles-option.is-correct .articles-option__marker {
  border-color: currentColor;
}

.articles-option.is-selected .articles-option__marker::after,
.articles-option.is-error .articles-option__marker::after,
.articles-option.is-correct .articles-option__marker::after {
  opacity: 1;
}

.articles-option__input:focus-visible + .articles-option__marker {
  outline: 3px solid var(--accent-soft);
  outline-offset: 3px;
}

.articles-option__copy {
  display: grid;
  min-width: 0;
  gap: 2px;
}

.articles-option__copy strong {
  font-size: 17px;
  font-weight: 800;
}

.articles-option__copy small {
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 650;
}

.articles-option.is-selected .articles-option__copy small,
.articles-option.is-error .articles-option__copy small,
.articles-option.is-correct .articles-option__copy small {
  color: inherit;
}

.articles-summary {
  display: grid;
  min-height: 540px;
  place-content: center;
  justify-items: center;
  gap: 22px;
  padding: 40px;
  text-align: center;
}

.articles-summary__icon {
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  border-radius: 50%;
  background: var(--success-soft);
  color: var(--success);
  font-size: 32px;
  font-weight: 800;
}

.articles-summary__icon.is-error {
  background: var(--danger-soft);
  color: var(--danger);
}

.articles-summary h1 { margin: 0; font-size: 28px; }
.articles-summary__stats { display: grid; width: min(100%, 680px); grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.articles-summary__stat { display: grid; gap: 5px; padding: 18px 14px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.articles-summary__stat strong { color: var(--accent-dark); font-size: 22px; }
.articles-summary__stat span { color: var(--muted); font-size: 12px; }
.articles-summary__note { margin: 0; color: var(--muted); font-size: 13px; }

.word-formation-stage {
  display: flex;
  min-height: 540px;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 20px;
  padding: 34px max(28px, 8vw);
}

.word-formation-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.word-formation-heading h1 {
  margin: 0;
  font-size: 26px;
}

.word-formation-heading p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13.5px;
}

.word-formation-heading__level {
  min-width: 44px;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--canvas);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-align: center;
}

.word-formation-level-picker {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.word-formation-level-picker__buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
}

.word-formation-level-picker__button {
  min-width: 48px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease;
}

.word-formation-level-picker__button:hover:not(:disabled) {
  border-color: var(--accent-line);
  color: var(--accent-dark);
}

.word-formation-level-picker__button.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--white);
}

.word-formation-level-picker__button:focus-visible {
  border-color: var(--accent);
  outline: 3px solid var(--accent-soft);
}

.word-formation-level-picker__button:disabled { cursor: wait; }

.word-formation-context {
  display: grid;
  width: min(100%, 760px);
  margin: 0 auto;
  gap: 10px;
  padding: 24px;
  border: 1px solid var(--line-soft);
  border-radius: 16px;
  background: var(--canvas);
  text-align: center;
}

.word-formation-context__sentence {
  margin: 0;
  color: var(--text);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.55;
}

.word-formation-context__gap {
  display: inline-block;
  min-width: 132px;
  max-width: 100%;
  margin: 0 4px;
  border-bottom: 2px solid var(--accent);
  color: var(--accent-dark);
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.word-formation-context__translation {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.word-formation-prompt {
  display: flex;
  width: min(100%, 760px);
  margin: 0 auto;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
}

.word-formation-prompt strong {
  padding: 9px 16px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 15px;
  letter-spacing: 0.08em;
}

.word-formation-form {
  display: grid;
  width: min(100%, 560px);
  margin: 0 auto;
}

.word-formation-field {
  display: grid;
  gap: 8px;
}

.word-formation-field__label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.word-formation-input {
  width: 100%;
  min-height: 58px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--white);
  color: var(--text);
  font: inherit;
  font-size: 17px;
  font-weight: 700;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease, background-color .15s ease;
}

.word-formation-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.word-formation-input.is-error {
  border-color: var(--danger);
  background: var(--danger-soft);
  color: var(--danger);
}

.word-formation-input.is-correct {
  border-color: var(--success);
  background: var(--success-soft);
  color: var(--success);
}

.word-formation-input:disabled { opacity: 1; }

.word-formation-summary {
  display: grid;
  min-height: 540px;
  place-content: center;
  justify-items: center;
  gap: 22px;
  padding: 40px;
  text-align: center;
}

.word-formation-summary__icon {
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  border-radius: 50%;
  background: var(--success-soft);
  color: var(--success);
  font-size: 32px;
  font-weight: 800;
}

.word-formation-summary__icon.is-error {
  background: var(--danger-soft);
  color: var(--danger);
}

.word-formation-summary h1 { margin: 0; font-size: 28px; }
.word-formation-summary__stats { display: grid; width: min(100%, 680px); grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.word-formation-summary__stat { display: grid; gap: 5px; padding: 18px 14px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.word-formation-summary__stat strong { color: var(--accent-dark); font-size: 22px; }
.word-formation-summary__stat span { color: var(--muted); font-size: 12px; }
.word-formation-summary__note { margin: 0; color: var(--muted); font-size: 13px; }

.mini-story-stage {
  display: flex;
  min-height: 540px;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 20px;
  padding: 34px max(28px, 7vw);
}

.mini-story-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.mini-story-heading h1 {
  margin: 0;
  font-size: 26px;
}

.mini-story-heading p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13.5px;
}

.mini-story-level-picker {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.mini-story-level-picker__buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
}

.mini-story-level-picker__button {
  min-width: 48px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease;
}

.mini-story-level-picker__button:hover:not(:disabled) {
  border-color: var(--accent-line);
  color: var(--accent-dark);
}

.mini-story-level-picker__button.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--white);
}

.mini-story-level-picker__button:focus-visible {
  border-color: var(--accent);
  outline: 3px solid var(--accent-soft);
}

.mini-story-level-picker__button:disabled { cursor: wait; }

.mini-story-form {
  display: grid;
  width: min(100%, 880px);
  margin: 0 auto;
  gap: 20px;
}

.mini-story-context {
  display: grid;
  gap: 12px;
  padding: 26px 28px;
  border: 1px solid var(--line-soft);
  border-radius: 18px;
  background: var(--canvas);
}

.mini-story-context__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.mini-story-context__topic,
.mini-story-context__level {
  padding: 6px 11px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
}

.mini-story-context__topic {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.mini-story-context__level {
  background: var(--white);
  color: var(--muted);
}

.mini-story-context__title {
  margin: 0;
  color: var(--text);
  font-size: 21px;
  line-height: 1.35;
}

.mini-story-context__opening {
  margin: 0;
  color: var(--text);
  font-size: 17px;
  font-weight: 650;
  line-height: 1.65;
}

.mini-story-context__translation {
  margin: 2px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.mini-story-options {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.mini-story-options__legend {
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.mini-story-options__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.mini-story-option {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 68px;
  align-items: flex-start;
  gap: 13px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--white);
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease;
}

.mini-story-option:hover:not(.is-error):not(.is-correct) {
  border-color: var(--accent-line);
}

.mini-story-option.is-selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.mini-story-option.is-error {
  border-color: var(--danger);
  background: var(--danger-soft);
  color: var(--danger);
  cursor: default;
}

.mini-story-option.is-correct {
  border-color: var(--success);
  background: var(--success-soft);
  color: var(--success);
  cursor: default;
}

.mini-story-option__input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}

.mini-story-option__marker {
  display: grid;
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  margin-top: 1px;
  place-items: center;
  border: 2px solid var(--line);
  border-radius: 50%;
  background: var(--white);
}

.mini-story-option__marker::after {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
  content: '';
  opacity: 0;
}

.mini-story-option.is-selected .mini-story-option__marker,
.mini-story-option.is-error .mini-story-option__marker,
.mini-story-option.is-correct .mini-story-option__marker {
  border-color: currentColor;
}

.mini-story-option.is-selected .mini-story-option__marker::after,
.mini-story-option.is-error .mini-story-option__marker::after,
.mini-story-option.is-correct .mini-story-option__marker::after {
  opacity: 1;
}

.mini-story-option__input:focus-visible + .mini-story-option__marker {
  outline: 3px solid var(--accent-soft);
  outline-offset: 3px;
}

.mini-story-option__copy {
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: 15.5px;
  font-weight: 650;
  line-height: 1.5;
}

.mini-story-summary {
  display: grid;
  min-height: 540px;
  place-content: center;
  justify-items: center;
  gap: 22px;
  padding: 40px;
  text-align: center;
}

.mini-story-summary__icon {
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  border-radius: 50%;
  background: var(--success-soft);
  color: var(--success);
  font-size: 32px;
  font-weight: 800;
}

.mini-story-summary__icon.is-error {
  background: var(--danger-soft);
  color: var(--danger);
}

.mini-story-summary h1 { margin: 0; font-size: 28px; }
.mini-story-summary__stats { display: grid; width: min(100%, 680px); grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.mini-story-summary__stat { display: grid; gap: 5px; padding: 18px 14px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.mini-story-summary__stat strong { color: var(--accent-dark); font-size: 22px; }
.mini-story-summary__stat span { color: var(--muted); font-size: 12px; }
.mini-story-summary__note { margin: 0; color: var(--muted); font-size: 13px; }

.vocabulary-cards-stage {
  display: flex;
  min-height: 560px;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 20px;
  padding: 34px max(28px, 8vw);
}

.vocabulary-cards-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
}

.vocabulary-cards-heading h1 {
  margin: 0;
  font-size: 26px;
}

.vocabulary-cards-heading p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13.5px;
}

.vocabulary-cards-selection-note {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
}

.vocabulary-cards-selection-note span {
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--canvas);
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 750;
}

.vocabulary-cards-toolbar {
  display: flex;
  width: min(100%, 720px);
  margin: 0 auto;
  justify-content: flex-end;
}

.vocabulary-cards-collection {
  display: flex;
  min-width: min(100%, 330px);
  align-items: center;
  gap: 10px;
}

.vocabulary-cards-collection__label {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.vocabulary-cards-collection__select {
  width: 100%;
  min-height: 42px;
  padding: 9px 38px 9px 12px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--white);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 650;
}

.vocabulary-cards-collection__select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  outline: none;
}

.vocabulary-card {
  position: relative;
  display: grid;
  width: min(100%, 720px);
  min-height: 320px;
  margin: 0 auto;
  place-content: center;
  justify-items: center;
  gap: 12px;
  padding: 34px;
  overflow: hidden;
  border: 1px solid var(--accent-line);
  border-radius: 24px;
  background:
    radial-gradient(circle at 10% 12%, var(--accent-soft), transparent 35%),
    linear-gradient(145deg, var(--white), var(--canvas));
  box-shadow: 0 20px 46px rgb(36 53 85 / 9%);
  text-align: center;
}

.vocabulary-card::after {
  position: absolute;
  right: -56px;
  bottom: -64px;
  width: 180px;
  height: 180px;
  border: 24px solid rgb(88 86 214 / 5%);
  border-radius: 50%;
  content: '';
  pointer-events: none;
}

.vocabulary-card__meta {
  position: absolute;
  top: 20px;
  right: 22px;
  left: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.vocabulary-card__state,
.vocabulary-card__rank {
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 10.5px;
  font-weight: 800;
}

.vocabulary-card__state {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

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

.vocabulary-card__prompt,
.vocabulary-card__answer-label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.vocabulary-card__word {
  max-width: 100%;
  margin: 0;
  color: var(--text);
  font-size: clamp(38px, 6vw, 58px);
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.vocabulary-card__divider {
  width: 64px;
  height: 2px;
  margin: 10px 0 2px;
  border-radius: 999px;
  background: var(--accent-line);
}

.vocabulary-card__translation {
  max-width: 620px;
  margin: 0;
  color: var(--accent-dark);
  font-size: clamp(21px, 3vw, 29px);
  font-weight: 750;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.vocabulary-card.is-revealed {
  border-color: var(--accent);
}

.vocabulary-cards-footer {
  justify-content: center;
}

.vocabulary-cards-footer .button {
  min-width: 190px;
}

.vocabulary-cards-footer--reveal .button {
  min-width: 240px;
}

.vocabulary-cards-empty,
.vocabulary-cards-summary {
  display: grid;
  min-height: 540px;
  place-content: center;
  justify-items: center;
  gap: 20px;
  padding: 40px;
  text-align: center;
}

.vocabulary-cards-empty .vocabulary-cards-collection {
  width: min(100%, 420px);
  margin-bottom: 10px;
}

.vocabulary-cards-empty__icon,
.vocabulary-cards-summary__icon {
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  border-radius: 50%;
  background: var(--success-soft);
  color: var(--success);
  font-size: 32px;
  font-weight: 800;
}

.vocabulary-cards-empty h1,
.vocabulary-cards-summary h1 {
  margin: 0;
  font-size: 28px;
}

.vocabulary-cards-empty p,
.vocabulary-cards-summary__lead {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.vocabulary-cards-summary__stats {
  display: grid;
  width: min(100%, 760px);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.vocabulary-cards-summary__stat {
  display: grid;
  min-width: 0;
  gap: 5px;
  padding: 18px 14px;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: var(--canvas);
}

.vocabulary-cards-summary__stat strong {
  color: var(--accent-dark);
  font-size: 20px;
  overflow-wrap: anywhere;
}

.vocabulary-cards-summary__stat span {
  color: var(--muted);
  font-size: 12px;
}

.feedback-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 40px;
  border-top: 1px solid var(--line);
}

.feedback-panel--success {
  border-color: #cdebd8;
  background: var(--success-soft);
}

.feedback-panel--error {
  border-color: #f1c9c9;
  background: var(--danger-soft);
}

.feedback-panel--skipped {
  border-color: var(--line);
  background: var(--canvas);
}

.feedback-panel__copy {
  display: flex;
  align-items: center;
  gap: 14px;
}

.feedback-icon {
  display: grid;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: var(--white);
  font-size: 22px;
}

.feedback-panel__copy strong,
.feedback-panel__copy span {
  display: block;
}

.feedback-panel__copy span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.grammar-layout {
  height: 100%;
  min-height: 585px;
  grid-template-columns: minmax(0, 1fr) 360px;
}

.error-correction-layout {
  display: flex;
  min-height: 585px;
  align-items: flex-start;
  justify-content: center;
  padding: 56px 44px 72px;
  background: var(--white);
}

.error-correction-card {
  width: min(100%, 860px);
  padding: 36px 40px 40px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--canvas);
  box-shadow: 0 14px 35px oklch(0.35 0.04 260 / 8%);
}

.error-correction-card h1 { margin: 0 0 8px; font-size: 28px; }
.error-correction-meta { margin: 0 0 28px; color: var(--muted); font-size: 14px; }
.error-correction-sentence { margin: 0 0 30px; padding: 22px 24px; border: 1px solid #f0caca; border-radius: 14px; background: var(--danger-soft); color: var(--ink); font-size: 22px; line-height: 1.5; }
.error-correction-form { display: flex; flex-direction: column; gap: 16px; }
.error-correction-input { width: 100%; min-height: 58px; box-sizing: border-box; padding: 15px 17px; border: 1px solid var(--line); border-radius: 12px; background: var(--white); color: var(--ink); font: inherit; font-size: 17px; outline: none; }
.error-correction-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.error-correction-actions { display: flex; justify-content: flex-end; }

.quick-response-summary { display: flex; min-height: 540px; align-items: center; flex-direction: column; justify-content: center; gap: 18px; padding: 48px 40px; text-align: center; }
.quick-response-summary__icon { display: grid; width: 64px; height: 64px; place-items: center; border-radius: 50%; background: var(--success-soft); color: var(--success); font-size: 34px; font-weight: 800; }
.quick-response-summary h1 { margin: 0; font-size: 30px; }
.quick-response-summary__lead, .quick-response-summary__note { margin: 0; color: var(--muted); }
.quick-response-summary__stats { display: grid; width: min(100%, 680px); grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 10px; }
.quick-response-summary__stat { display: grid; gap: 5px; padding: 18px 14px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.quick-response-summary__stat strong { color: var(--accent-dark); font-size: 22px; }
.quick-response-summary__stat span { color: var(--muted); font-size: 12px; }

.word-quiz-layout { display: grid; place-items: center; min-height: 540px; padding: 40px 20px; }
.word-quiz-card { width: min(100%, 620px); padding: 42px; border: 1px solid var(--line-soft); border-radius: 20px; background: var(--white); text-align: center; box-shadow: 0 12px 30px rgb(31 41 55 / 8%); }
.word-quiz-timer { height: 8px; overflow: hidden; margin-bottom: 28px; border-radius: 999px; background: var(--line-soft); }
.word-quiz-timer__fill { display: block; width: 100%; height: 100%; transform-origin: left center; background: var(--accent); }
.word-quiz-meta { margin: 0 0 28px; color: var(--muted); font-size: 14px; }
.word-quiz-word { margin: 0; color: var(--accent-dark); font-size: 42px; }
.word-quiz-translation { margin: 16px 0 36px; font-size: 28px; }
.word-quiz-actions { display: flex; justify-content: center; gap: 14px; }
.word-quiz-actions .button { min-width: 150px; }

.odd-one-out-layout { display: flex; min-height: 540px; align-items: center; flex-direction: column; gap: 24px; padding: 32px 24px 56px; }
.odd-one-out-layout .articles-level-picker { width: min(100%, 720px); }
.odd-one-out-card { width: min(100%, 720px); padding: 40px; border: 1px solid var(--line-soft); border-radius: 20px; background: var(--white); text-align: center; box-shadow: 0 12px 30px rgb(31 41 55 / 8%); }
.odd-one-out-card__eyebrow { margin: 0 0 8px; color: var(--accent); font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.odd-one-out-card h1 { margin: 0 0 30px; font-size: 28px; }
.odd-one-out-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.odd-one-out-option { min-height: 76px; padding: 18px; border: 2px solid var(--line-soft); border-radius: 14px; background: var(--canvas); color: var(--ink); font: inherit; font-size: 20px; font-weight: 700; cursor: pointer; transition: border-color .15s ease, background .15s ease, transform .15s ease; }
.odd-one-out-option:hover:not(:disabled) { border-color: var(--accent); transform: translateY(-1px); }
.odd-one-out-option:disabled { cursor: default; opacity: .72; }
.odd-one-out-option.is-correct { border-color: var(--success); background: var(--success-soft); color: var(--success); opacity: 1; }
.odd-one-out-option.is-wrong { border-color: var(--danger); background: var(--danger-soft); color: var(--danger); opacity: 1; }
.odd-one-out-summary { display: flex; min-height: 540px; align-items: center; flex-direction: column; justify-content: center; gap: 18px; padding: 48px 40px; text-align: center; }
.odd-one-out-summary__icon { display: grid; width: 64px; height: 64px; place-items: center; border-radius: 50%; background: var(--success-soft); color: var(--success); font-size: 34px; font-weight: 800; }
.odd-one-out-summary h1 { margin: 0; font-size: 30px; }
.odd-one-out-summary__lead { margin: 0; color: var(--muted); }
.odd-one-out-summary__stats { display: grid; width: min(100%, 680px); grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 10px; }
.odd-one-out-summary__stat { display: grid; gap: 5px; padding: 18px 14px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.odd-one-out-summary__stat strong { color: var(--accent-dark); font-size: 22px; }
.odd-one-out-summary__stat span { color: var(--muted); font-size: 12px; }

.spelling-layout { display: grid; min-height: 540px; place-items: center; padding: 36px 24px 60px; }
.spelling-card { width: min(100%, 720px); padding: 42px; border: 1px solid var(--line-soft); border-radius: 20px; background: var(--white); text-align: center; box-shadow: 0 12px 30px rgb(31 41 55 / 8%); }
.spelling-card__eyebrow { margin: 0 0 10px; color: var(--muted); font-size: 13px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.spelling-card__translation { margin: 0 0 30px; color: var(--accent-dark); font-size: 30px; }
.spelling-answer { display: flex; min-height: 78px; align-items: center; justify-content: center; gap: 8px; padding: 10px; border: 2px dashed var(--line); border-radius: 15px; background: var(--canvas); transition: border-color .15s ease, background .15s ease; }
.spelling-answer.is-correct { border-style: solid; border-color: var(--success); background: var(--success-soft); }
.spelling-answer.is-wrong { border-style: solid; border-color: var(--danger); background: var(--danger-soft); }
.spelling-result { min-height: 22px; margin: 10px 0 16px; color: var(--muted); font-size: 14px; font-weight: 700; }
.spelling-bank { display: flex; min-height: 70px; flex-wrap: wrap; align-items: center; justify-content: center; gap: 9px; }
.spelling-tile { display: grid; width: 52px; height: 58px; place-items: center; border: 1px solid var(--line); border-bottom-width: 4px; border-radius: 11px; background: var(--white); color: var(--ink); font: inherit; font-size: 24px; font-weight: 800; text-transform: uppercase; cursor: pointer; }
.spelling-tile:hover:not(:disabled) { border-color: var(--accent); color: var(--accent-dark); transform: translateY(-1px); }
.spelling-tile:disabled { cursor: default; }
.spelling-summary { display: flex; min-height: 540px; align-items: center; flex-direction: column; justify-content: center; gap: 18px; padding: 48px 40px; text-align: center; }
.spelling-summary__icon { display: grid; width: 64px; height: 64px; place-items: center; border-radius: 50%; background: var(--success-soft); color: var(--success); font-size: 34px; font-weight: 800; }
.spelling-summary h1 { margin: 0; font-size: 30px; }
.spelling-summary__lead, .spelling-summary__note { margin: 0; color: var(--muted); }
.spelling-summary__stats { display: grid; width: min(100%, 680px); grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 10px; }
.spelling-summary__stat { display: grid; gap: 5px; padding: 18px 14px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.spelling-summary__stat strong { color: var(--accent-dark); font-size: 22px; }
.spelling-summary__stat span { color: var(--muted); font-size: 12px; }

.collocations-layout { display: flex; min-height: 520px; align-items: center; flex-direction: column; gap: 24px; padding: 32px 24px 56px; }
.collocations-layout .articles-level-picker { width: min(100%, 760px); }
.collocations-card { width: min(100%, 760px); padding: 40px; border: 1px solid var(--line-soft); border-radius: 20px; background: var(--white); box-shadow: 0 12px 30px rgb(31 41 55 / 8%); }
.collocations-card__top { display: flex; justify-content: space-between; margin-bottom: 18px; color: var(--muted); font-size: 12px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.collocations-card h1 { margin: 0 0 24px; text-align: center; font-size: 27px; }
.collocations-sentence { margin: 0 0 30px; padding: 24px; border-radius: 15px; background: var(--canvas); text-align: center; font-size: 22px; line-height: 1.55; }
.collocations-sentence__gap { display: inline-block; min-width: 76px; margin: 0 5px; border-bottom: 2px solid var(--accent); color: var(--accent); font-weight: 800; }
.collocations-options { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
.collocations-option { min-height: 58px; padding: 14px 18px; border: 2px solid var(--line-soft); border-radius: 13px; background: var(--white); color: var(--ink); font: inherit; font-size: 17px; font-weight: 750; cursor: pointer; }
.collocations-option:hover:not(:disabled) { border-color: var(--accent); color: var(--accent-dark); }
.collocations-option:disabled { cursor: default; opacity: .64; }
.collocations-option.is-correct { border-color: var(--success); background: var(--success-soft); color: var(--success); opacity: 1; }
.collocations-option.is-wrong { border-color: var(--danger); background: var(--danger-soft); color: var(--danger); opacity: 1; }
.collocations-summary { display: flex; min-height: 540px; align-items: center; flex-direction: column; justify-content: center; gap: 18px; padding: 48px 40px; text-align: center; }
.collocations-summary__icon { display: grid; width: 64px; height: 64px; place-items: center; border-radius: 50%; background: var(--success-soft); color: var(--success); font-size: 34px; font-weight: 800; }
.collocations-summary h1 { margin: 0; font-size: 30px; }
.collocations-summary__lead, .collocations-summary__note { margin: 0; color: var(--muted); }
.collocations-summary__stats { display: grid; width: min(100%,680px); grid-template-columns: repeat(4,minmax(0,1fr)); gap: 12px; margin-top: 10px; }
.collocations-summary__stat { display: grid; gap: 5px; padding: 18px 14px; border: 1px solid var(--line-soft); border-radius: 14px; background: var(--canvas); }
.collocations-summary__stat strong { color: var(--accent-dark); font-size: 22px; }
.collocations-summary__stat span { color: var(--muted); font-size: 12px; }
.precise-word-explanation { margin-top: 5px; color: var(--ink) !important; font-weight: 650; }

.grammar-copy {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 32px 44px;
}

.trainer-title h1 {
  margin: 0 0 4px;
  font-size: 24px;
}

.trainer-title p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.letter {
  padding: 28px 32px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--canvas);
  font-size: 16px;
  line-height: 2.05;
}

.letter p {
  margin: 0 0 14px;
}

.letter p:last-child { margin-bottom: 0; }

.blank {
  display: inline-block;
  min-width: 120px;
  padding: 0 5px;
  border-bottom: 2px dashed #c3c8d4;
  border-radius: 6px 6px 0 0;
  background: var(--white);
  text-align: center;
}

.blank--filled {
  border-bottom-style: solid;
  border-bottom-color: var(--accent);
  color: var(--accent-dark);
  font-weight: 700;
}

.blank[role="button"] {
  cursor: pointer;
}

.blank--error {
  border-bottom-color: var(--danger);
  background: var(--danger-soft);
  color: var(--danger);
}

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

.rule-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 32px 28px;
  border-left: 1px solid var(--line-soft);
}

.rule-panel > strong {
  font-size: 14px;
}

.rule-card {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 13px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.6;
}

.rule-card strong { color: var(--ink); }

.rule-panel__footer {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: auto;
}

.rule-panel__status {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
}

.reading-layout {
  height: 100%;
  min-height: 585px;
  grid-template-columns: 1.15fr 1fr;
}

.reading-copy {
  position: relative;
  padding: 30px 40px 150px;
  border-right: 1px solid var(--line-soft);
  font-size: 16.5px;
  line-height: 1.9;
}

.reading-copy p {
  margin: 0 0 16px;
}

.reading-copy p:last-of-type { margin-bottom: 0; }

.vocab-word {
  padding: 1px 3px;
  border: 0;
  border-bottom: 2px dotted #c3c8d4;
  background: transparent;
  cursor: pointer;
  font: inherit;
}

.vocab-word[aria-expanded="true"] {
  border-bottom-style: solid;
  border-bottom-color: var(--accent);
  border-radius: 4px;
  background: var(--accent-soft);
}

.vocab-popup {
  position: absolute;
  bottom: 26px;
  left: 40px;
  max-width: 320px;
  padding: 14px 18px;
  border-radius: 13px;
  background: var(--ink);
  box-shadow: 0 12px 30px rgb(22 24 29 / 30%);
  color: var(--white);
}

.vocab-popup[hidden] { display: none; }

.vocab-popup strong,
.vocab-popup span {
  display: block;
}

.vocab-popup strong {
  margin-bottom: 4px;
  font-size: 15px;
}

.vocab-popup span {
  color: #c9cdd6;
  font-size: 13.5px;
}

.vocab-popup .button {
  min-height: 34px;
  margin-top: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 12.5px;
}

.question-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 30px 36px;
  background: var(--canvas);
}

.question-panel > strong {
  margin-bottom: 2px;
  font-size: 16.5px;
  line-height: 1.5;
}

.answer-option {
  display: flex;
  min-height: 58px;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--white);
  cursor: pointer;
  font-size: 14.5px;
  line-height: 1.5;
}

.answer-option:has(input:checked) {
  border: 2px solid var(--accent);
  box-shadow: 0 4px 14px oklch(0.52 0.19 262 / 12%);
}

.answer-option input {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  accent-color: var(--accent);
}

.question-feedback {
  margin: 2px 0 0;
  font-size: 13.5px;
  line-height: 1.5;
}

.question-feedback--success { color: var(--success); }
.question-feedback--error { color: var(--danger); }

.question-panel__footer {
  display: flex;
  justify-content: flex-end;
  margin-top: auto;
}

.dialog-layout {
  height: 100%;
  min-height: 585px;
  grid-template-columns: minmax(0, 1fr) 340px;
}

.chat-pane {
  display: flex;
  min-width: 0;
  flex-direction: column;
  border-right: 1px solid var(--line-soft);
  background: var(--canvas);
}

.chat-log {
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  gap: 16px;
  overflow: auto;
  padding: 26px 32px;
}

.message {
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.message--user {
  justify-content: flex-end;
}

.message__avatar {
  display: grid;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--white);
  font-size: 12px;
  font-weight: 800;
}

.message__bubble {
  max-width: 430px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 16px 16px 16px 4px;
  background: var(--white);
}

.message--user .message__bubble {
  border-color: var(--accent);
  border-radius: 16px 16px 4px 16px;
  background: var(--accent);
  color: var(--white);
}

.message__bubble p {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
}

.message__bubble .text-link {
  margin-top: 8px;
  font-size: 12.5px;
}

.dialog-composer {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 32px 22px;
  border-top: 1px solid var(--line-soft);
  background: var(--white);
}

.prompt-chips {
  display: flex;
  gap: 8px;
  overflow: auto;
  scrollbar-width: none;
}

.prompt-chips::-webkit-scrollbar { display: none; }

.prompt-chip {
  flex: 0 0 auto;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--canvas);
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
}

.dialog-composer__row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.dialog-composer input {
  min-height: 50px;
  flex: 1;
  padding: 14px 18px;
}

.voice-button {
  display: grid;
  width: 50px;
  height: 50px;
  flex: 0 0 auto;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 4px 14px oklch(0.52 0.19 262 / 35%);
  cursor: pointer;
  font-size: 19px;
}

.coach-pane {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 18px;
  padding: 24px;
  overflow: auto;
  background: var(--white);
}

.coach-pane__intro {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.analysis-card {
  padding: 16px 18px;
  border: 1px solid var(--accent-line);
  border-radius: 14px;
  background: oklch(0.98 0.01 262);
}

.analysis-card > strong {
  color: var(--accent-dark);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.analysis-card p {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.6;
}

.goal-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13.5px;
}

.goal-list li {
  display: flex;
  align-items: center;
  gap: 9px;
}

.goal-list__mark {
  display: inline-flex;
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--line);
  border-radius: 50%;
  color: var(--success);
  font-size: 10px;
  font-weight: 800;
}

.goal-list li.is-done {
  color: var(--success);
}

.goal-list li.is-done .goal-list__mark {
  border: 0;
  background: var(--success-soft);
}

.goal-list li.is-current .goal-list__mark {
  border-color: var(--accent);
}

.new-words {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}

.new-words > strong {
  display: block;
  margin-bottom: 10px;
  font-size: 13.5px;
}

.word-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.word-tags span {
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--canvas);
  font-size: 12.5px;
}

.toast {
  position: fixed;
  z-index: 100;
  right: 24px;
  bottom: 24px;
  max-width: min(380px, calc(100vw - 48px));
  padding: 13px 16px;
  border-radius: 11px;
  background: var(--ink);
  box-shadow: var(--shadow);
  color: var(--white);
  font-size: 13px;
  line-height: 1.45;
}

.toast[hidden] { display: none; }

@keyframes shake {
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

@media (min-width: 1360px) {
  .page-shell {
    padding-right: 0;
    padding-left: 0;
  }

  .app-header {
    border-bottom-right-radius: 18px;
    border-bottom-left-radius: 18px;
    box-shadow:
      inset 1px 0 var(--line-soft),
      inset -1px 0 var(--line-soft),
      0 10px 30px rgb(22 24 29 / 6%);
  }

  .app-footer {
    border-top-left-radius: 18px;
    border-top-right-radius: 18px;
    box-shadow:
      inset 1px 0 var(--line-soft),
      inset -1px 0 var(--line-soft),
      0 -10px 30px rgb(22 24 29 / 5%);
  }
}

@media (max-width: 1050px) {
  .app-header,
  .app-footer {
    padding-right: 24px;
    padding-left: 24px;
  }

  .page-shell {
    padding-right: 24px;
    padding-left: 24px;
  }

  .trainer-frame--embedded { width: calc(100% - 48px); }

  .app-header__left { gap: 20px; }
  .main-nav a { padding-right: 9px; padding-left: 9px; }
  .trainer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .app-header__meta .stat-pill { display: none; }
  .app-header__meta { gap: 12px; }

  .main-nav {
    position: fixed;
    z-index: 40;
    top: 69px;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px 20px 20px;
    border-bottom: 1px solid var(--line);
    background: var(--white);
    box-shadow: 0 16px 32px rgb(22 24 29 / 10%);
  }

  .main-nav.is-open { display: flex; }
  .main-nav a {
    padding: 12px;
  }

  .dashboard-grid,
  .profile-grid,
  .subscription-top {
    grid-template-columns: 1fr;
  }

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

  .coach-card { grid-column: 1 / -1; }
  .trainer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .profile-sidebar { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .profile-summary { grid-row: span 2; }
  .subscription-summary { grid-column: 2; }

  .grammar-layout,
  .reading-layout,
  .dialog-layout {
    grid-template-columns: 1fr;
  }

  .rule-panel,
  .reading-copy,
  .chat-pane {
    border-right: 0;
  }

  .rule-panel { border-top: 1px solid var(--line-soft); }
  .reading-copy { border-bottom: 1px solid var(--line-soft); }
  .dialog-layout { min-height: auto; }
  .chat-pane { min-height: 620px; }
  .coach-pane { border-top: 1px solid var(--line-soft); }
}

@media (max-width: 700px) {
  .dictionary-collection-page .dictionary-hero--with-background { min-height: 200px; background-image: linear-gradient(90deg, var(--canvas) 0%, var(--canvas) 42%, color-mix(in srgb, var(--canvas) 94%, transparent) 58%, color-mix(in srgb, var(--canvas) 58%, transparent) 72%, transparent 86%), var(--dictionary-collection-background); }
  .dictionary-collection-page .dictionary-hero--with-background > * { max-width: 72%; }
  .dictionary-word-list { grid-template-columns: 1fr; }
  .language-levels-list { grid-template-columns: 1fr; }
  .dictionary-collections { grid-template-columns: 1fr; }
  .learning-path-level-grid { grid-template-columns: 1fr; }
  .course-selector__grid { grid-template-columns: 1fr; }
  .business-course-path { padding: 22px 16px 28px; }
  .business-road { height: auto; display: grid; gap: 14px; padding: 4px 0 4px 58px; }
  .business-road::before { position: absolute; top: 30px; bottom: 30px; left: 25px; width: 4px; border-radius: 4px; background: var(--accent-line); content: ''; }
  .business-road__svg { display: none; }
  .business-road-stop { position: relative; top: auto; left: auto; display: flex; width: auto; height: auto; min-height: 72px; align-items: center; gap: 14px; }
  .business-road-stop__button { position: relative; flex: 0 0 56px; width: 56px; height: 56px; transform: none; border-width: 5px; font-size: 16px; }
  .business-road-stop__button:hover:not(:disabled) { transform: scale(1.04); }
  .business-road-stop__card,
  .business-road-stop__card--right,
  .business-road-stop__card--left { position: static; width: auto; padding: 12px 14px; transform: none; text-align: left; opacity: 1; visibility: visible; pointer-events: auto; transition: none; }

  body:not(.trainer-body):not(.auth-page) {
    padding-bottom: 76px;
  }

  .app-header {
    min-height: 65px;
    padding: 12px 16px;
  }

  .brand__mark {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    font-size: 14px;
  }

  .brand__name { font-size: 17px; }
  .main-nav { top: 65px; }

  .page-shell {
    padding: 20px 16px 28px;
  }

  .experience-page { gap: 14px; }
  .experience-breadcrumb { display: none; }
  .experience-hero,
  .experience-section { padding: 22px 20px; }
  .experience-hero__summary { align-items: flex-start; flex-direction: column; gap: 2px; }
  .experience-reward-grid,
  .experience-rules { grid-template-columns: 1fr; }
  .experience-level { grid-template-columns: 34px minmax(0, 1fr); }
  .experience-level__range { grid-column: 2; }
  .experience-demo-note { flex-direction: column; gap: 4px; }

  .info-page { gap: 14px; }
  .info-breadcrumb { display: none; }
  .info-hero,
  .info-section,
  .info-document { padding: 22px 20px; }
  .info-support-grid { grid-template-columns: 1fr; gap: 14px; }
  .info-cta { align-items: stretch; flex-direction: column; padding: 20px; }
  .info-cta .button { width: 100%; }
  .info-notice { flex-direction: column; gap: 4px; }
  .faq-item__answer { padding-right: 18px; }

  .app-state {
    min-height: 360px;
    padding: 24px 20px;
  }

  .app-loading__grid {
    grid-template-columns: 1fr;
  }

  .app-loading__grid span {
    min-height: 120px;
  }

  .content-stack,
  .side-stack,
  .profile-content { gap: 14px; }

  .card { border-radius: 16px; }
  .card--padded,
  .goal-card,
  .stats-card,
  .achievements-card,
  .payment-history { padding: 18px 20px; }

  .welcome-card { padding: 20px; }
  .welcome-head { align-items: flex-start; flex-direction: column; gap: 10px; }
  .welcome-head h1 { font-size: 20px; }

  .task-card {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 12px;
    padding: 16px;
  }

  .task-icon { width: 42px; height: 42px; }
  .task-card > .button,
  .task-card > .badge { grid-column: 1 / -1; width: 100%; }

  .metric-grid,
  .stat-grid,
  .achievement-grid,
  .goal-grid,
  .trainer-grid,
  .side-stack,
  .profile-sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric-grid { gap: 10px; }
  .profile-summary { grid-column: 1 / -1; grid-row: auto; }
  .data-card,
  .subscription-summary { grid-column: 1 / -1; }
  .goal-grid { grid-template-columns: 1fr; }
  .achievement-grid { gap: 10px; }
  .achievement:nth-child(4) { display: none; }
  .activity-head { font-size: 11.5px; }

  .trainer-library { margin-top: 18px; }
  .trainer-card { padding: 16px; }

  .subscription-shell { max-width: none; }
  .breadcrumb { display: none; }
  .plan-card { padding: 24px 20px; }
  .plan-card__date { font-size: 23px; }
  .plan-card__actions { display: grid; grid-template-columns: 1fr 1fr; }
  .payment-card { padding: 18px 20px; }

  .payment-row--head { display: none; }
  .payment-row {
    grid-template-columns: 1fr auto;
    gap: 7px 12px;
  }

  .payment-row > span:nth-child(2),
  .payment-row > span:nth-child(3) {
    grid-column: 1;
    color: var(--faint);
    font-size: 12px;
  }

  .payment-row > strong:nth-child(4) {
    grid-column: 2;
    grid-row: 1;
  }

  .payment-row > :last-child {
    grid-column: 2;
    grid-row: 2 / span 2;
    align-self: center;
  }

  .saving-card {
    flex-direction: column;
    align-items: stretch;
    padding: 18px 20px;
  }

  .app-footer {
    padding-right: 16px;
    padding-left: 16px;
    text-align: center;
  }

  .app-footer__inner {
    flex-direction: column;
    gap: 10px;
  }

  .app-footer nav { justify-content: center; gap: 14px; }

  .mobile-nav {
    position: fixed;
    z-index: 45;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    padding: 7px 0 max(10px, env(safe-area-inset-bottom));
    border-top: 1px solid var(--line-soft);
    background: rgb(255 255 255 / 97%);
    box-shadow: 0 -8px 24px rgb(22 24 29 / 6%);
    backdrop-filter: blur(12px);
  }

  .mobile-nav a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 5px;
    color: var(--faint);
    font-size: 10.5px;
    font-weight: 600;
  }

  .mobile-nav a[aria-current="page"] { color: var(--accent-dark); }
  .mobile-nav__icon { font-size: 18px; line-height: 1; }

  .auth-header { padding: 14px 20px; }
  .auth-layout { display: flex; min-height: calc(100vh - 65px); flex-direction: column; }
  .auth-aside { padding: 36px 24px; }
  .auth-aside h1 { font-size: 30px; }
  .auth-aside p { font-size: 14px; }
  .auth-points { display: none; }
  .auth-panel { padding: 34px 24px 48px; }
  .auth-panel h2 { font-size: 24px; }

  .trainer-body {
    display: block;
    padding: 0;
    background: var(--white);
  }

  .trainer-frame {
    min-height: 100vh;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .trainer-frame--embedded {
    width: calc(100% - 32px);
    min-height: auto;
    margin: 20px auto 28px;
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: var(--shadow);
  }

  .trainer-header {
    min-height: 64px;
    gap: 12px;
    padding: 12px 16px;
  }

  .trainer-header__copy strong { font-size: 14px; }
  .trainer-header__copy span { font-size: 11.5px; }
  .trainer-header .progress-track { height: 8px; }
  .trainer-progress-copy { font-size: 12px; }

  .trainer-footer {
    min-height: 76px;
    padding: 14px 20px max(18px, env(safe-area-inset-bottom));
  }

  .trainer-footer .button { flex: 1; }
  .center-stage,
  .pronunciation-stage,
  .pairs-stage {
    min-height: calc(100vh - 140px);
    gap: 24px;
    padding: 28px 20px;
  }

  .center-stage h1,
  .pronunciation-stage h1,
  .pairs-stage h1,
  .phrase-builder-stage h1,
  .irregular-verbs-heading h1,
  .phrasal-verbs-heading h1,
  .prepositions-heading h1,
  .articles-heading h1,
  .word-formation-heading h1,
  .mini-story-heading h1,
  .vocabulary-cards-heading h1 {
    font-size: 20px;
  }

  .round-button { width: 78px; height: 78px; font-size: 27px; }
  .round-button--small { width: 52px; height: 52px; font-size: 18px; }
  .answer-meta { align-items: flex-start; flex-direction: column; gap: 8px; }

  .pairs-heading { flex-direction: column; gap: 10px; }
  .pairs-selection-note { justify-content: flex-start; }
  .pairs-toolbar { justify-content: stretch; }
  .pairs-collection { width: 100%; flex-direction: column; align-items: stretch; gap: 7px; }
  .pairs-collection__select { width: 100%; min-width: 0; }
  .pairs-board { gap: 10px; }
  .pairs-column__title { margin-bottom: 8px; }
  .pairs-column__list { gap: 10px; }
  .pair-button { min-height: 58px; padding: 12px 9px; font-size: 13.5px; }
  .pairs-footer { align-items: flex-start; flex-direction: column; gap: 8px; }
  .pairs-footer__hint { font-size: 12px; }
  .pairs-summary { min-height: calc(100vh - 140px); padding: 28px 20px; }
  .pairs-summary__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pronunciation-phrase { align-items: flex-start; padding: 18px; }
  .pronunciation-phrase__copy strong { font-size: 17px; }
  .coach-note { padding: 14px 16px; }
  .record-row { flex-wrap: wrap; justify-content: center; }

  .phrase-builder-stage {
    min-height: calc(100vh - 140px);
    padding: 24px 20px;
  }

  .irregular-verbs-stage {
    min-height: calc(100vh - 140px);
    gap: 20px;
    padding: 24px 20px;
  }

  .phrasal-verbs-stage {
    min-height: calc(100vh - 140px);
    gap: 18px;
    padding: 24px 20px;
  }

  .prepositions-stage {
    min-height: calc(100vh - 140px);
    gap: 18px;
    padding: 24px 20px;
  }

  .articles-stage {
    min-height: calc(100vh - 140px);
    gap: 18px;
    padding: 24px 20px;
  }

  .word-formation-stage {
    min-height: calc(100vh - 140px);
    gap: 18px;
    padding: 24px 20px;
  }

  .mini-story-stage {
    min-height: calc(100vh - 140px);
    gap: 18px;
    padding: 24px 20px;
  }

  .vocabulary-cards-stage {
    min-height: calc(100vh - 140px);
    gap: 18px;
    padding: 24px 20px;
  }

  .trainer-frame--embedded .center-stage,
  .trainer-frame--embedded .pronunciation-stage,
  .trainer-frame--embedded .pairs-stage,
  .trainer-frame--embedded .phrase-builder-stage,
  .trainer-frame--embedded .irregular-verbs-stage,
  .trainer-frame--embedded .phrasal-verbs-stage,
  .trainer-frame--embedded .prepositions-stage,
  .trainer-frame--embedded .articles-stage,
  .trainer-frame--embedded .word-formation-stage,
  .trainer-frame--embedded .mini-story-stage,
  .trainer-frame--embedded .vocabulary-cards-stage {
    min-height: 440px;
  }

  .phrase-builder-heading { align-items: flex-start; flex-direction: column; gap: 10px; }
  .phrase-builder-heading__meta { flex-wrap: wrap; }
  .phrase-builder-level-picker { align-items: center; flex-direction: column; gap: 7px; margin: 16px 0; }
  .phrase-builder-level-picker__buttons { width: 100%; }
  .phrase-builder-level-picker__button { flex: 1 1 54px; }
  .phrase-prompt__avatar { width: 46px; height: 46px; flex-basis: 46px; }
  .phrase-response__avatar { width: 46px; height: 46px; flex-basis: 46px; }
  .phrase-prompt__bubble { font-size: 16px; }
  .selected-words { min-height: 96px; }
  .word-chip { padding: 10px 14px; font-size: 14px; }
  .phrase-builder-summary { min-height: calc(100vh - 140px); padding: 28px 20px; }
  .phrase-builder-summary__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .irregular-verbs-heading { align-items: flex-start; }
  .irregular-verbs-level-picker { align-items: center; flex-direction: column; gap: 7px; }
  .irregular-verbs-level-picker__buttons { width: 100%; }
  .irregular-verbs-level-picker__button { flex: 1 1 54px; }
  .irregular-verbs-fields { grid-template-columns: 1fr; gap: 12px; }
  .irregular-verbs-field--readonly strong,
  .irregular-verbs-input { min-height: 54px; font-size: 16px; }
  .irregular-verbs-summary { min-height: calc(100vh - 140px); padding: 28px 20px; }
  .irregular-verbs-summary__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .phrasal-verbs-heading { align-items: flex-start; }
  .phrasal-verbs-level-picker { align-items: center; flex-direction: column; gap: 7px; }
  .phrasal-verbs-level-picker__buttons { width: 100%; }
  .phrasal-verbs-level-picker__button { flex: 1 1 54px; }
  .phrasal-verbs-context { padding: 18px 16px; }
  .phrasal-verbs-context__sentence { font-size: 18px; }
  .phrasal-verbs-context__gap { min-width: 90px; }
  .phrasal-verbs-input { min-height: 54px; font-size: 16px; }
  .phrasal-verbs-summary { min-height: calc(100vh - 140px); padding: 28px 20px; }
  .phrasal-verbs-summary__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .prepositions-heading { align-items: flex-start; }
  .prepositions-level-picker { align-items: center; flex-direction: column; gap: 7px; }
  .prepositions-level-picker__buttons { width: 100%; }
  .prepositions-level-picker__button { flex: 1 1 54px; }
  .prepositions-context { padding: 18px 16px; }
  .prepositions-context__sentence { font-size: 18px; }
  .prepositions-context__gap { min-width: 84px; }
  .prepositions-options__grid { grid-template-columns: 1fr; gap: 10px; }
  .prepositions-option { min-height: 54px; padding: 12px 14px; }
  .prepositions-summary { min-height: calc(100vh - 140px); padding: 28px 20px; }
  .prepositions-summary__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .articles-heading { align-items: flex-start; }
  .articles-level-picker { align-items: center; flex-direction: column; gap: 7px; }
  .articles-level-picker__buttons { width: 100%; }
  .articles-level-picker__button { flex: 1 1 54px; }
  .articles-context { padding: 18px 16px; }
  .articles-context__sentence { font-size: 18px; }
  .articles-context__gap { min-width: 66px; }
  .articles-options__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .articles-option { min-height: 58px; padding: 12px 14px; }
  .articles-summary { min-height: calc(100vh - 140px); padding: 28px 20px; }
  .articles-summary__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .word-formation-heading { align-items: flex-start; }
  .word-formation-level-picker { align-items: center; flex-direction: column; gap: 7px; }
  .word-formation-level-picker__buttons { width: 100%; }
  .word-formation-level-picker__button { flex: 1 1 54px; }
  .word-formation-context { padding: 18px 16px; }
  .word-formation-context__sentence { font-size: 18px; }
  .word-formation-context__gap { min-width: 100px; }
  .word-formation-prompt { flex-direction: column; gap: 7px; }
  .word-formation-input { min-height: 54px; font-size: 16px; }
  .word-formation-summary { min-height: calc(100vh - 140px); padding: 28px 20px; }
  .word-formation-summary__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mini-story-heading { align-items: flex-start; }
  .mini-story-level-picker { align-items: center; flex-direction: column; gap: 7px; }
  .mini-story-level-picker__buttons { width: 100%; }
  .mini-story-level-picker__button { flex: 1 1 54px; }
  .mini-story-context { padding: 19px 17px; }
  .mini-story-context__title { font-size: 18px; }
  .mini-story-context__opening { font-size: 15.5px; }
  .mini-story-option { min-height: 60px; padding: 13px 14px; }
  .mini-story-option__copy { font-size: 14px; }
  .mini-story-summary { min-height: calc(100vh - 140px); padding: 28px 20px; }
  .mini-story-summary__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .vocabulary-cards-heading { flex-direction: column; gap: 10px; }
  .vocabulary-cards-selection-note { justify-content: flex-start; }
  .vocabulary-cards-toolbar { justify-content: stretch; }
  .vocabulary-cards-collection { width: 100%; flex-direction: column; align-items: stretch; gap: 7px; }
  .vocabulary-card { min-height: 300px; padding: 66px 20px 28px; border-radius: 19px; }
  .vocabulary-card__meta { top: 16px; right: 16px; left: 16px; }
  .vocabulary-card__rank { max-width: 45%; padding-right: 0; text-align: right; }
  .vocabulary-card__word { font-size: 38px; }
  .vocabulary-card__translation { font-size: 22px; }
  .vocabulary-cards-footer { flex-direction: column-reverse; }
  .vocabulary-cards-footer .button { width: 100%; min-width: 0; }
  .vocabulary-cards-empty,
  .vocabulary-cards-summary { min-height: calc(100vh - 140px); padding: 28px 20px; }
  .vocabulary-cards-summary__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .feedback-panel {
    align-items: stretch;
    flex-direction: column;
    gap: 14px;
    padding: 18px 20px;
  }

  .feedback-panel .button { width: 100%; }

  .grammar-layout,
  .reading-layout { min-height: auto; }
  .error-correction-layout { min-height: auto; padding: 28px 20px 56px; }
  .error-correction-card { padding: 26px 20px 24px; border-radius: 15px; }
  .error-correction-card h1 { font-size: 22px; }
  .error-correction-sentence { padding: 17px 16px; font-size: 18px; }
  .error-correction-actions,
  .error-correction-actions .button { width: 100%; }
  .quick-response-summary { min-height: auto; padding: 42px 20px 56px; }
  .quick-response-summary h1 { font-size: 24px; }
  .quick-response-summary__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .word-quiz-layout { min-height: auto; padding: 28px 16px 48px; }
  .word-quiz-card { padding: 28px 20px; }
  .word-quiz-word { font-size: 34px; }
  .word-quiz-translation { font-size: 23px; }
  .word-quiz-actions { flex-direction: column; }
  .word-quiz-actions .button { width: 100%; }
  .odd-one-out-layout { min-height: auto; padding: 24px 16px 48px; }
  .odd-one-out-card { padding: 28px 20px; }
  .odd-one-out-card h1 { font-size: 23px; }
  .odd-one-out-options { grid-template-columns: 1fr; }
  .odd-one-out-option { min-height: 62px; font-size: 18px; }
  .odd-one-out-summary { min-height: auto; padding: 42px 20px 56px; }
  .odd-one-out-summary h1 { font-size: 24px; }
  .odd-one-out-summary__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .spelling-layout { min-height: auto; padding: 28px 16px 48px; }
  .spelling-card { padding: 30px 16px; }
  .spelling-card__translation { font-size: 25px; }
  .spelling-answer { min-height: 68px; gap: 5px; padding: 8px 5px; }
  .spelling-bank { gap: 7px; }
  .spelling-tile { width: 42px; height: 48px; font-size: 20px; }
  .spelling-summary { min-height: auto; padding: 42px 20px 56px; }
  .spelling-summary h1 { font-size: 24px; }
  .spelling-summary__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .collocations-layout { min-height: auto; padding: 24px 16px 48px; }
  .collocations-card { padding: 28px 18px; }
  .collocations-card h1 { font-size: 23px; }
  .collocations-sentence { padding: 19px 15px; font-size: 18px; }
  .collocations-options { grid-template-columns: 1fr; }
  .collocations-summary { min-height: auto; padding: 42px 20px 56px; }
  .collocations-summary h1 { font-size: 24px; }
  .collocations-summary__stats { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .grammar-copy { padding: 24px 20px; }
  .trainer-title h1 { font-size: 20px; }
  .letter { padding: 20px; font-size: 14.5px; line-height: 1.9; }
  .blank { min-width: 92px; }
  .rule-panel { padding: 22px 20px; }

  .reading-copy { padding: 24px 20px 150px; font-size: 15px; line-height: 1.75; }
  .vocab-popup { right: 20px; bottom: 24px; left: 20px; max-width: none; }
  .question-panel { padding: 24px 20px 30px; }
  .question-panel__footer .button { width: 100%; }

  .chat-pane { min-height: calc(100vh - 64px); }
  .chat-log { padding: 18px 16px; }
  .message { gap: 10px; }
  .message__avatar { width: 32px; height: 32px; font-size: 11px; }
  .message__bubble { max-width: min(78vw, 300px); padding: 12px 15px; }
  .message__bubble p { font-size: 14px; }
  .dialog-composer { padding: 14px 16px 18px; }
  .coach-pane { padding: 20px; }
  .toast { right: 16px; bottom: 16px; max-width: calc(100vw - 32px); }
}

@media (max-width: 430px) {
  .metric-grid,
  .trainer-grid,
  .side-stack { grid-template-columns: 1fr; }

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

  .stat-grid { gap: 10px; }
  .stat-card-item { padding: 14px; }
  .stat-card-item strong { font-size: 19px; }
  .achievement-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .plan-card__actions { grid-template-columns: 1fr; }
  .app-footer nav { flex-wrap: wrap; }
}

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

  .app-loading__line,
  .app-loading__grid span {
    animation: none;
  }
}

/* Real test billing: keep catalog and long order histories readable. */
.billing-page, .billing-page > div:last-child { display: grid; gap: 20px; min-width: 0; }
.billing-page h1, .billing-page h2, .billing-page h3, .billing-page p { margin: 0; }
.billing-page .card { display: grid; gap: 14px; min-width: 0; }
.billing-page .button { justify-self: start; }
.billing-page .subscription-top { margin: 0; }
.billing-order { display: grid; gap: 8px; padding-top: 18px; border-top: 1px solid #e7e7ec; overflow-wrap: anywhere; }
.billing-message:empty { display: none; }
.billing-message { color: #495565; }