:root {
  --bg: #f7f5f0;
  --surface: #ffffff;
  --surface-soft: #f0eee8;
  --ink: #1f2421;
  --muted: #68706a;
  --line: #ded9cd;
  --red: #d84332;
  --green: #168b54;
  --deep-green: #0f5f3e;
  --black: #2f302d;
  --gold: #d99b25;
  --blue: #2489a5;
  --shadow: 0 18px 45px rgba(31, 36, 33, 0.08);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(90deg, rgba(216, 67, 50, 0.08), transparent 18%, transparent 82%, rgba(22, 139, 84, 0.08)),
    var(--bg);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

p,
li,
td,
th,
.doc-line,
.bg-text,
.accent-text,
.translation,
.lesson-name {
  overflow-wrap: break-word;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

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

.is-hidden {
  display: none !important;
}

.auth-screen {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
  background:
    linear-gradient(90deg, rgba(216, 67, 50, 0.08), transparent 22%, transparent 78%, rgba(22, 139, 84, 0.1)),
    var(--bg);
}

.auth-card {
  width: min(460px, 100%);
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
}

.auth-brand {
  margin-bottom: 28px;
}

.auth-card h2 {
  margin: 0 0 10px;
  font-size: clamp(30px, 6vw, 46px);
  line-height: 1;
}

.auth-lead {
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.55;
}

.auth-form {
  display: grid;
  gap: 14px;
}

.auth-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.auth-form input {
  width: 100%;
  min-height: 52px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
}

.auth-form input:focus {
  outline: 2px solid rgba(22, 139, 84, 0.2);
  border-color: var(--green);
}

.auth-submit {
  width: 100%;
  margin-top: 6px;
}

.auth-message {
  min-height: 22px;
  margin: 0;
  color: var(--red);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.45;
}

.auth-message[data-type="info"] {
  color: var(--muted);
}

.sign-out-button {
  margin-top: 10px;
}

.course-chooser {
  display: none;
  place-items: center;
  min-height: 100vh;
  padding: 32px;
  background: var(--bg);
}

.chooser-inner {
  width: min(980px, 100%);
  text-align: center;
}

.chooser-inner h1 {
  max-width: 760px;
  margin: 0 auto 12px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.02;
}

.chooser-inner p {
  margin: 0 auto;
  max-width: 620px;
  color: var(--muted);
  line-height: 1.6;
}

.welcome-copy {
  display: grid;
  gap: 12px;
  max-width: 820px;
  margin: 22px auto 0;
  text-align: left;
}

.welcome-copy p {
  max-width: none;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 44px;
  max-width: 620px;
  margin: 72px auto 0;
}

.choice-grid.single-choice {
  grid-template-columns: minmax(220px, 360px);
  justify-content: center;
  margin-top: 36px;
}

.course-choice {
  display: grid;
  place-items: center;
  min-height: 160px;
  padding: 24px;
  border: 2px solid var(--black);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink);
  font-size: 16px;
  font-weight: 800;
  transition: 160ms ease;
}

.course-choice:hover {
  border-color: var(--green);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.app-shell {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  padding: 24px 18px;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 22px;
}

.brand h1,
.topbar h2,
.section-title h3,
.hero-content h3,
.lesson-card h3 {
  margin: 0;
  letter-spacing: 0;
}

.brand h1 {
  font-size: 20px;
  line-height: 1.1;
}

.brand-mark {
  display: grid;
  grid-template-columns: repeat(2, 18px);
  grid-template-rows: repeat(2, 18px);
  gap: 3px;
  width: 45px;
  height: 45px;
  padding: 2px;
  transform: rotate(45deg);
}

.brand-mark span {
  border: 2px solid var(--black);
  background: var(--red);
}

.brand-mark span:nth-child(2) {
  background: var(--green);
}

.brand-mark span:nth-child(3) {
  background: #fff;
}

.brand-mark span:nth-child(4) {
  background: var(--gold);
}

.eyebrow,
.kicker {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.progress-card,
.panel-card,
.lesson-card,
.hero-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.progress-card {
  padding: 16px;
  margin-bottom: 18px;
}

.progress-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
  font-weight: 700;
}

.progress-bar {
  height: 8px;
  margin: 12px 0 10px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--surface-soft);
}

.progress-bar span {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--green), var(--red));
  transition: width 180ms ease;
}

.progress-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.lesson-list {
  display: grid;
  gap: 8px;
}

.lesson-nav-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  width: 100%;
  min-height: 54px;
  padding: 10px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  text-align: left;
}

.lesson-nav-item:hover,
.lesson-nav-item.active {
  border-color: var(--line);
  background: var(--surface);
}

.lesson-nav-item.active {
  box-shadow: 0 10px 24px rgba(31, 36, 33, 0.06);
}

.lesson-index {
  display: none;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.lesson-nav-item.done .lesson-index {
  background: var(--green);
  color: #fff;
}

.lesson-name {
  display: block;
  overflow: hidden;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lesson-meta {
  display: none;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--line);
}

.lesson-nav-item.done .status-dot {
  background: var(--green);
}

.main {
  min-width: 0;
  padding: 24px;
}

.topbar {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.topbar h2 {
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.05;
}

.topbar-actions,
.hero-actions,
.compact-actions,
.lesson-actions,
.audio-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.topbar-actions {
  display: none;
}

.icon-button,
.primary-button,
.secondary-button,
.ghost-button,
.chip-button {
  min-height: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font-weight: 800;
}

.icon-button {
  width: 42px;
  font-size: 28px;
  line-height: 0;
}

.primary-button,
.secondary-button,
.ghost-button,
.chip-button {
  padding: 0 14px;
}

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

.mark-done-button {
  min-height: 48px;
  padding: 0 22px;
  border: 2px solid var(--green);
  background: var(--green);
  color: #fff;
  font-size: 16px;
  font-weight: 850;
  box-shadow: 0 10px 22px rgba(22, 139, 84, 0.2);
  transition: 140ms ease;
}

.mark-done-button:hover {
  border-color: var(--deep-green);
  background: var(--deep-green);
  transform: translateY(-1px);
}

.mark-done-button.is-done {
  border-color: var(--deep-green);
  background: var(--deep-green);
  box-shadow: 0 8px 18px rgba(15, 95, 62, 0.16);
}

.secondary-button:hover,
.icon-button:hover,
.ghost-button:hover,
.chip-button:hover {
  border-color: var(--green);
}

.ghost-button {
  width: 100%;
  margin-top: 14px;
  background: transparent;
  color: var(--muted);
}

.hero-panel {
  position: relative;
  overflow: hidden;
  min-height: 280px;
  margin-bottom: 18px;
  background:
    linear-gradient(130deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.72)),
    linear-gradient(90deg, rgba(216, 67, 50, 0.14), rgba(22, 139, 84, 0.12));
}

.ornament-strip {
  display: grid;
  grid-template-columns: repeat(5, 44px);
  gap: 8px;
  position: absolute;
  right: 28px;
  top: 28px;
  opacity: 0.9;
}

.ornament-strip span {
  width: 44px;
  height: 44px;
  border: 3px solid var(--black);
  background: var(--red);
  transform: rotate(45deg);
}

.ornament-strip span:nth-child(2),
.ornament-strip span:nth-child(4) {
  background: #fff;
}

.ornament-strip span:nth-child(3) {
  background: var(--green);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding: 42px;
}

.hero-content h3 {
  margin-bottom: 16px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 0.98;
}

.hero-content p {
  max-width: 650px;
  color: #3f4742;
  font-size: 17px;
  line-height: 1.62;
}

.hero-actions {
  margin-top: 24px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.lesson-card {
  padding: 28px;
}

.lesson-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.lesson-card h3 {
  margin-bottom: 8px;
  font-size: 28px;
  line-height: 1.15;
}

.lesson-summary {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.lesson-actions {
  justify-content: flex-end;
  min-width: 240px;
}

.lesson-section {
  margin-top: 26px;
}

.interview-mode .lesson-section.interview-focus {
  padding: 16px;
  border: 2px solid rgba(22, 139, 84, 0.55);
  border-radius: var(--radius);
  background: rgba(22, 139, 84, 0.035);
}

.interview-mode .question-card {
  border-color: rgba(22, 139, 84, 0.65);
  box-shadow: inset 4px 0 0 rgba(22, 139, 84, 0.65);
}

.template-box {
  padding: 12px;
  border: 1px solid rgba(22, 139, 84, 0.35);
  border-radius: var(--radius);
  background: rgba(22, 139, 84, 0.04);
}

.document-section {
  display: grid;
  gap: 14px;
}

.document-grid {
  display: grid;
  gap: 12px;
}

.document-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.lesson-card.expanded-lesson .document-section {
  border-color: rgba(22, 139, 84, 0.38);
  background: linear-gradient(180deg, rgba(22, 139, 84, 0.035), rgba(255, 255, 255, 0.92));
}

.lesson-card.expanded-lesson .document-card {
  padding: 18px;
  border-color: rgba(22, 139, 84, 0.18);
  box-shadow: inset 4px 0 0 rgba(22, 139, 84, 0.28);
}

.lesson-card.expanded-lesson .doc-subtitle {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: rgba(22, 139, 84, 0.055);
}

.structured-phrase {
  display: grid;
  gap: 7px;
  padding: 14px;
  border-left: 4px solid var(--green);
  border-radius: var(--radius);
  background: rgba(22, 139, 84, 0.055);
}

.structured-phrase-top,
.phrase-card-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
}

.structured-phrase + .structured-phrase,
.doc-line + .structured-phrase,
.structured-phrase + .doc-line,
.doc-table-wrap + .doc-line,
.doc-line + .doc-table-wrap {
  margin-top: 10px;
}

.structured-label {
  color: var(--deep-green);
  font-size: 13px;
  font-weight: 850;
}

.doc-table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  -webkit-overflow-scrolling: touch;
}

.doc-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: #fff;
}

.doc-table th,
.doc-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.doc-table th {
  background: rgba(22, 139, 84, 0.08);
  color: var(--deep-green);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

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

.doc-audio-heading,
.doc-table-audio-cell {
  width: 76px;
  text-align: center;
}

.doc-table-audio-cell {
  vertical-align: middle;
}

.doc-table-audio-cell .inline-audio-button {
  margin-right: auto;
  margin-left: auto;
}

.hymn-training-block {
  display: grid;
  gap: 12px;
  margin-top: 14px;
  padding: 14px;
  border: 1px solid rgba(22, 139, 84, 0.28);
  border-radius: var(--radius);
  background: rgba(22, 139, 84, 0.035);
}

.hymn-training-block h5 {
  margin: 0;
  color: var(--ink);
  font-size: 17px;
}

.hymn-table {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.hymn-table-head,
.hymn-line {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}

.hymn-table-head {
  background: rgba(22, 139, 84, 0.08);
  color: var(--deep-green);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.hymn-line {
  line-height: 1.45;
}

.hymn-line-bg {
  color: var(--ink);
  font-weight: 750;
}

.hymn-table > :nth-last-child(-n + 2) {
  border-bottom: 0;
}

.hymn-audio-button {
  justify-self: end;
}

.doc-line {
  margin: 0;
  color: #3f4742;
  line-height: 1.55;
}

.doc-line + .doc-line {
  margin-top: 6px;
}

.doc-line-audio {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.doc-line-audio span {
  min-width: 0;
}

.doc-subtitle {
  margin-top: 0;
  color: var(--ink);
  font-size: 16px;
  font-weight: 850;
}

.doc-note {
  color: var(--deep-green);
  font-weight: 650;
}

.doc-phrase {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-left: 4px solid var(--green);
  border-radius: var(--radius);
  background: rgba(22, 139, 84, 0.045);
  color: var(--ink);
  font-weight: 700;
}

.doc-phrase-text,
.doc-table-word {
  min-width: 0;
}

.inline-audio-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  border: 2px solid var(--green);
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  box-shadow: 0 8px 18px rgba(22, 139, 84, 0.18);
  box-sizing: border-box;
  line-height: 0;
  transform: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  transition: 140ms ease;
}

.inline-audio-button::before {
  content: "";
  width: 0;
  height: 0;
  margin-left: 3px;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-left: 12px solid #fff;
}

.inline-audio-button.is-playing {
  border-color: #000;
  background: #000;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.16);
}

.inline-audio-button.is-playing::before,
.inline-audio-button.is-playing::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  display: block;
  box-sizing: border-box;
  width: 5px;
  height: 17px;
  margin: 0;
  border: 0;
  border-radius: 1px;
  background: #fff;
  pointer-events: none;
}

.inline-audio-button.is-playing::before {
  transform: translate(-5px, -50%);
}

.inline-audio-button.is-playing::after {
  transform: translate(4px, -50%);
}

.inline-audio-button:hover {
  border-color: var(--deep-green);
  background: var(--deep-green);
  transform: none;
}

.inline-audio-button:active,
.inline-audio-button:focus-visible {
  transform: none;
}

.inline-audio-button.is-playing:hover {
  border-color: #000;
  background: #000;
  transform: none;
}

.table-audio-button {
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  margin-top: 0;
}

.table-audio-button::before {
  border-top-width: 7px;
  border-bottom-width: 7px;
  border-left-width: 11px;
}

.table-audio-button.is-playing::before,
.table-audio-button.is-playing::after {
  width: 4px;
  height: 15px;
}

.doc-check {
  color: var(--ink);
  font-weight: 650;
}

.lesson-section h4 {
  margin: 0 0 12px;
  font-size: 18px;
}

.lesson-section p,
.lesson-section li {
  color: #3f4742;
  line-height: 1.6;
}

.clean-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.clean-list li {
  position: relative;
  padding-left: 22px;
}

.clean-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 9px;
  height: 9px;
  background: var(--red);
  transform: rotate(45deg);
}

.phrase-grid,
.question-grid {
  display: grid;
  gap: 12px;
}

.phrase-card,
.question-card,
.drill-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.phrase-card,
.question-card {
  padding: 16px;
}

.phrase-main,
.question-main {
  display: grid;
  gap: 8px;
}

.bg-text {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.45;
}

.accent-text {
  color: var(--deep-green);
  font-weight: 500;
}

.pronunciation,
.translation {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.audio-actions {
  margin-top: 12px;
}

.audio-hint {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.practice-panel {
  display: none;
}

#backToChooserButton {
  display: none;
}

.panel-card {
  padding: 18px;
}

.section-title {
  margin-bottom: 14px;
}

.section-title h3 {
  font-size: 20px;
}

.profile-form {
  display: grid;
  gap: 12px;
}

.dossier-import {
  display: grid;
  gap: 10px;
  padding: 12px;
  margin-bottom: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.dossier-import label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.profile-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.profile-form input,
.profile-form select,
.dossier-import textarea {
  width: 100%;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}

.profile-form input,
.profile-form select {
  height: 42px;
}

.dossier-import textarea {
  min-height: 120px;
  padding: 10px 11px;
  resize: vertical;
  line-height: 1.45;
}

.personal-answer {
  display: grid;
  gap: 12px;
  margin-bottom: 14px;
}

.personal-answer p {
  margin: 0;
  line-height: 1.55;
}

.personal-answer .label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.interview-box {
  display: grid;
  gap: 16px;
  padding: 18px;
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.interview-question {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
}

.answer-reveal {
  display: none;
  padding: 14px;
  border-radius: var(--radius);
  background: #fff;
}

.answer-reveal.visible {
  display: block;
}

.drill-card {
  display: grid;
  gap: 10px;
  padding: 14px;
  background: #fff;
}

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

.rule-card {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.rule-card h5 {
  margin: 0;
  font-size: 16px;
}

.rule-card p {
  margin: 0;
  color: #3f4742;
  font-size: 14px;
  line-height: 1.55;
}

.rule-examples {
  display: grid;
  gap: 8px;
}

.rule-example {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  padding: 9px;
  border-radius: var(--radius);
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 13px;
}

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

.table-grid {
  display: grid;
  gap: 14px;
}

.table-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.table-card h5 {
  margin: 0 0 12px;
  font-size: 17px;
}

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

.responsive-table table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
}

.responsive-table th,
.responsive-table td {
  padding: 10px 11px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.responsive-table th {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

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

.accent-cell {
  color: var(--deep-green);
  font-weight: 800;
}

.drill-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 10;
  max-width: min(360px, calc(100vw - 44px));
  padding: 12px 14px;
  border-radius: var(--radius);
  background: var(--black);
  color: #fff;
  font-weight: 700;
  opacity: 0;
  transform: translateY(12px);
  transition: 160ms ease;
  pointer-events: none;
}

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

@media (min-width: 1121px) {
  html,
  body {
    height: 100%;
    overflow: hidden;
  }

  .app-shell {
    height: 100vh;
    min-height: 0;
    overflow: hidden;
  }

  .main {
    display: flex;
    flex-direction: column;
    height: 100vh;
    min-height: 0;
    overflow: hidden;
    padding: 12px 96px 24px 24px;
  }

  .workspace {
    display: block;
    flex: 1 1 auto;
    height: 100%;
    min-height: 0;
    overflow: hidden;
  }

  .content-column {
    height: 100%;
    min-height: 0;
    overflow: hidden;
  }

  .lesson-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 100%;
    min-height: 0;
    overflow: hidden;
  }

  .lesson-header {
    flex: 0 0 auto;
  }

  .lesson-card > .document-section {
    flex: 1 1 auto;
    min-height: 0;
    overflow: hidden;
  }

  .lesson-card > .document-section > .document-grid {
    min-height: 0;
    overflow-y: auto;
    padding-right: 10px;
    scrollbar-gutter: stable;
  }
}

@media (max-width: 1120px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: relative;
    height: auto;
  }

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

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

  .practice-panel {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  body {
    background: var(--bg);
    font-size: 15px;
  }

  .app-shell {
    display: block;
  }

  .main,
  .sidebar {
    padding: 10px;
  }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 20;
    height: auto;
    max-height: 34vh;
    overflow: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    background: rgba(247, 245, 240, 0.96);
    backdrop-filter: blur(16px);
  }

  .brand {
    gap: 10px;
    margin-bottom: 10px;
  }

  .brand-mark {
    grid-template-columns: repeat(2, 14px);
    grid-template-rows: repeat(2, 14px);
    width: 36px;
    height: 36px;
  }

  .brand h1 {
    font-size: 18px;
  }

  .eyebrow,
  .kicker {
    font-size: 10px;
  }

  .progress-card {
    padding: 10px;
    margin-bottom: 8px;
    box-shadow: none;
  }

  .progress-card p {
    display: none;
  }

  .progress-bar {
    margin: 8px 0 0;
  }

  .topbar {
    display: none;
  }

  .lesson-header {
    display: grid;
  }

  .lesson-actions {
    justify-content: flex-start;
    min-width: 0;
  }

  .lesson-actions .primary-button {
    width: 100%;
  }

  .lesson-list {
    display: flex;
    grid-template-columns: none;
    gap: 8px;
    overflow-x: auto;
    padding: 2px 0 6px;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
  }

  .lesson-nav-item {
    flex: 0 0 min(62vw, 240px);
    min-height: 40px;
    padding: 8px 10px;
    scroll-snap-align: start;
  }

  .lesson-name {
    display: block;
    overflow: hidden;
    font-size: 14px;
    line-height: 1.25;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .sidebar > .ghost-button {
    min-height: 34px;
    margin-top: 8px;
    padding: 0 10px;
    font-size: 12px;
  }

  .practice-panel,
  .rule-grid {
    grid-template-columns: 1fr;
  }

  .rule-example {
    grid-template-columns: 1fr;
  }

  .hero-content,
  .lesson-card {
    padding: 14px 10px;
  }

  .lesson-card {
    border-radius: var(--radius);
    box-shadow: none;
  }

  .lesson-header {
    gap: 14px;
    padding-bottom: 14px;
  }

  .lesson-card h3 {
    font-size: clamp(24px, 8vw, 32px);
    line-height: 1.12;
  }

  .lesson-summary {
    font-size: 15px;
    line-height: 1.5;
  }

  .lesson-section {
    margin-top: 14px;
  }

  .interview-mode .lesson-section.interview-focus {
    padding: 0;
    border: 0;
    background: transparent;
  }

  .lesson-section h4 {
    font-size: 17px;
  }

  .document-grid,
  .phrase-grid,
  .question-grid {
    gap: 10px;
  }

  .document-card,
  .phrase-card,
  .question-card,
  .drill-card,
  .table-card,
  .structured-phrase {
    padding: 10px;
  }

  .doc-line {
    font-size: 15px;
    line-height: 1.45;
  }

  .doc-subtitle {
    font-size: 17px;
    line-height: 1.25;
  }

  .doc-phrase {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
    padding: 9px 10px;
    font-size: 15px;
  }

  .inline-audio-button {
    justify-self: end;
    width: 38px;
    height: 38px;
    min-width: 38px;
    min-height: 38px;
    padding: 0;
  }

  .inline-audio-button::before {
    border-top-width: 7px;
    border-bottom-width: 7px;
    border-left-width: 11px;
  }

  .bg-text {
    font-size: 16px;
  }

  .audio-actions {
    gap: 8px;
  }

  .chip-button,
  .primary-button,
  .secondary-button,
  .ghost-button {
    min-height: 42px;
    padding: 0 12px;
  }

  .doc-table-wrap {
    overflow: visible;
    border: 0;
    background: transparent;
  }

  .doc-table {
    min-width: 0;
    table-layout: auto;
    border-collapse: separate;
    border-spacing: 0;
    background: transparent;
    font-size: 14px;
  }

  .doc-table,
  .doc-table thead,
  .doc-table tbody,
  .doc-table tr,
  .doc-table th,
  .doc-table td {
    display: block;
  }

  .doc-table thead {
    display: none;
  }

  .doc-table tbody {
    display: grid;
    gap: 8px;
  }

  .doc-table tr {
    overflow: hidden;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
  }

  .doc-table tr:last-child {
    border-bottom: 1px solid var(--line);
  }

  .doc-table th,
  .doc-table td {
    padding: 0;
    border-bottom: 0;
    overflow-wrap: normal;
    word-break: normal;
    hyphens: none;
  }

  .doc-table td {
    display: grid;
    grid-template-columns: 106px minmax(0, 1fr);
    gap: 10px;
    align-items: baseline;
    min-width: 0;
    font-size: 14px;
    line-height: 1.35;
  }

  .doc-table .doc-table-audio-cell {
    width: auto;
    text-align: left;
  }

  .doc-table-audio-cell .inline-audio-button {
    margin-right: 0;
    margin-left: 0;
  }

  .doc-table td + td {
    margin-top: 5px;
  }

  .doc-table td::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: 9px;
    font-weight: 850;
    line-height: 1.25;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    white-space: nowrap;
  }

  .doc-table-word {
    min-width: 0;
  }

  .doc-table .table-audio-button {
    grid-column: 2;
    margin-top: 0;
    justify-self: start;
    width: 38px;
    height: 38px;
    min-width: 38px;
    min-height: 38px;
  }

  .doc-table:not(.plain-doc-table) tr {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 42px;
    grid-template-areas:
      "bg audio"
      "tr audio"
      "ru audio";
    gap: 5px 10px;
    align-items: center;
    padding: 10px 12px;
  }

  .doc-table:not(.plain-doc-table) td {
    margin-top: 0;
    display: grid;
    grid-template-columns: 106px minmax(0, 1fr);
    gap: 10px;
    align-items: baseline;
    font-size: 15px;
    line-height: 1.3;
  }

  .doc-table:not(.plain-doc-table) td:nth-child(1) {
    grid-area: bg;
  }

  .doc-table:not(.plain-doc-table) td:nth-child(2) {
    grid-area: tr;
  }

  .doc-table:not(.plain-doc-table) td:nth-child(3) {
    grid-area: ru;
  }

  .doc-table:not(.plain-doc-table) .doc-table-audio-cell {
    grid-area: audio;
    display: flex;
    align-items: center;
    justify-content: center;
    align-self: stretch;
  }

  .doc-table:not(.plain-doc-table) .doc-table-audio-cell::before {
    display: none;
  }

  .doc-table:not(.plain-doc-table) .doc-table-audio-cell .inline-audio-button {
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    margin: 0;
  }

  .doc-table:not(.plain-doc-table) .table-audio-button {
    grid-column: auto;
    justify-self: center;
  }

  .doc-table:not(.plain-doc-table) tr.no-row-audio {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "bg"
      "tr"
      "ru";
  }

  .doc-table:not(.plain-doc-table) tr.no-row-audio .doc-table-audio-cell {
    display: none;
  }

  .plain-doc-table tr {
    padding: 10px 12px;
  }

  .plain-doc-table td {
    grid-template-columns: 106px minmax(0, 1fr);
    font-size: 14px;
  }

  .doc-table th {
    font-size: 10px;
  }

  .hymn-table {
    grid-template-columns: 1fr;
  }

  .hymn-table-head:nth-of-type(2) {
    display: none;
  }

  .hymn-line {
    border-bottom: 0;
  }

  .hymn-line-bg {
    padding-bottom: 4px;
    border-top: 1px solid var(--line);
  }

  .hymn-line-bg:first-of-type {
    border-top: 0;
  }

  .hymn-line-bg + .hymn-line {
    padding-top: 0;
    padding-bottom: 12px;
    color: var(--muted);
  }

  .responsive-table table {
    min-width: 520px;
  }

  .ornament-strip {
    display: none;
  }
}

@media (max-width: 420px) {
  .main,
  .sidebar {
    padding: 8px;
  }

  .brand h1 {
    font-size: 17px;
  }

  .lesson-nav-item {
    flex-basis: min(68vw, 220px);
  }

  .lesson-card {
    padding: 12px 8px;
  }

  .document-card,
  .phrase-card,
  .question-card,
  .drill-card,
  .table-card,
  .structured-phrase {
    padding: 10px;
  }

  .lesson-card h3 {
    font-size: 25px;
  }

  .doc-table-wrap {
    border-radius: 7px;
  }

  .doc-table:not(.plain-doc-table) tr {
    grid-template-columns: minmax(0, 1fr) 40px;
    gap: 4px 8px;
    padding: 9px 10px;
  }

  .doc-table:not(.plain-doc-table) td {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 8px;
    font-size: 14px;
  }

  .doc-table:not(.plain-doc-table) .doc-table-audio-cell .inline-audio-button {
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
  }

  .plain-doc-table td {
    grid-template-columns: 96px minmax(0, 1fr);
    font-size: 13px;
    line-height: 1.35;
  }
}

@media (max-width: 360px) {
  .doc-table:not(.plain-doc-table) tr {
    grid-template-columns: minmax(0, 1fr) 38px;
    gap: 5px 7px;
  }

  .doc-table:not(.plain-doc-table) td,
  .plain-doc-table td {
    display: block;
  }

  .doc-table:not(.plain-doc-table) td::before,
  .plain-doc-table td::before {
    display: block;
    margin-bottom: 2px;
  }

  .doc-table:not(.plain-doc-table) .doc-table-audio-cell .inline-audio-button {
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
  }
}