:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #667085;
  --line: #d7dde5;
  --paper: #fbfcfd;
  --panel: #ffffff;
  --teal: #087f8c;
  --teal-dark: #075d66;
  --coral: #d95d39;
  --amber: #f4b740;
  --blue: #2d6cdf;
  --green: #2f855a;
  --shadow: 0 18px 40px rgba(23, 32, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: 286px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  background: #18212b;
  color: #f6f8fb;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.brand {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px;
  align-items: center;
}

.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  background: var(--amber);
  color: #1b222b;
  font-weight: 800;
  border-radius: 8px;
}

.brand h1,
.brand p,
.topbar h2,
.topbar p,
.section-heading h3,
.section-heading p {
  margin: 0;
}

.brand h1 {
  font-size: 18px;
  line-height: 1.2;
}

.brand p,
.sidebar-panel p {
  color: #b9c3cf;
  line-height: 1.5;
  font-size: 13px;
}

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

.nav-item {
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 11px 12px;
  background: transparent;
  color: #e7ecf2;
  text-align: left;
}

.nav-item:hover,
.nav-item.active {
  background: #263241;
  border-color: #405064;
}

.sidebar-panel {
  margin-top: auto;
  border: 1px solid #405064;
  border-radius: 8px;
  padding: 16px;
}

.sidebar-panel h2 {
  margin: 0 0 8px;
  font-size: 15px;
}

.main-content {
  min-width: 0;
  padding: 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-bottom: 24px;
}

.eyebrow {
  color: var(--teal);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.topbar h2 {
  font-size: 30px;
}

.status-strip {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.status-strip span {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  padding: 9px 11px;
  color: var(--muted);
  font-size: 13px;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.hero-panel {
  grid-column: 1 / -1;
  min-height: 280px;
  border-radius: 8px;
  padding: 28px;
  color: #ffffff;
  background:
    linear-gradient(110deg, rgba(8, 43, 54, 0.95), rgba(8, 127, 140, 0.82)),
    repeating-linear-gradient(135deg, rgba(255,255,255,0.08) 0 2px, transparent 2px 18px);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 24px;
  align-items: center;
  box-shadow: var(--shadow);
}

.hero-copy h3 {
  font-size: 38px;
  line-height: 1.05;
  margin: 8px 0 14px;
  max-width: 780px;
}

.hero-copy p:not(.eyebrow) {
  color: #d6eef1;
  line-height: 1.6;
  max-width: 680px;
}

.button-row,
.parent-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.primary-action,
.secondary-action {
  border: 1px solid transparent;
  border-radius: 8px;
  min-height: 42px;
  padding: 0 15px;
  font-weight: 800;
}

.primary-action {
  background: var(--coral);
  color: #fff;
}

.primary-action:hover {
  background: #bd4828;
}

.secondary-action {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}

.secondary-action:hover {
  border-color: var(--teal);
}

.learning-map {
  display: grid;
  grid-template-columns: 1fr 18px 1fr 18px 1fr 18px 1fr;
  align-items: center;
}

.map-step {
  aspect-ratio: 1;
  border: 1px solid rgba(255,255,255,0.45);
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-weight: 800;
  background: rgba(255,255,255,0.12);
}

.map-step.active {
  background: var(--amber);
  color: #18212b;
}

.map-line {
  height: 2px;
  background: rgba(255,255,255,0.45);
}

.metric-card,
.section-band,
.chat-panel,
.coach-panel,
.typing-workspace {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.metric-card {
  min-height: 118px;
  padding: 20px;
  display: grid;
  align-content: center;
  gap: 4px;
}

.metric-value {
  font-size: 38px;
  font-weight: 850;
  color: var(--teal-dark);
}

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

.section-band {
  margin-top: 16px;
  padding: 22px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
  margin-bottom: 18px;
}

.section-heading h3 {
  font-size: 21px;
}

.section-heading p {
  color: var(--muted);
  line-height: 1.45;
}

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

.topic-card,
.subject-card,
.question-card,
.word-card,
.review-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  background: #fff;
}

.topic-card strong,
.subject-card strong {
  display: block;
  margin-bottom: 8px;
}

.topic-card p,
.subject-card p,
.word-card p,
.review-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.talk-layout,
.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  gap: 16px;
}

.chat-panel {
  min-height: calc(100vh - 128px);
  display: grid;
  grid-template-rows: auto minmax(320px, 1fr) auto;
}

.chat-header {
  padding: 18px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}

.chat-header h3,
.chat-header p,
.coach-panel h3 {
  margin: 0;
}

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

select,
input[type="text"],
.chat-form input {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
  background: #fff;
  color: var(--ink);
}

.chat-log {
  padding: 18px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.message {
  max-width: 78%;
  border-radius: 8px;
  padding: 12px 14px;
  line-height: 1.5;
}

.message.user {
  align-self: flex-end;
  background: #e9f2ff;
  border: 1px solid #bdd3f4;
}

.message.coach {
  align-self: flex-start;
  background: #f4f7f8;
  border: 1px solid var(--line);
}

.correction {
  margin-top: 10px;
  border-left: 4px solid var(--coral);
  padding-left: 10px;
  color: #415161;
}

.chat-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  padding: 18px;
  border-top: 1px solid var(--line);
}

.coach-panel {
  padding: 18px;
  align-self: start;
}

.field-label {
  display: block;
  margin-top: 16px;
  color: var(--muted);
  font-weight: 700;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--teal);
}

.range-output {
  color: var(--muted);
  font-size: 14px;
}

.coach-note {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcfd;
}

.coach-note p {
  color: var(--muted);
  line-height: 1.5;
}

.assessment-box,
.vocab-deck,
.word-bank,
.review-list {
  display: grid;
  gap: 12px;
}

.question-card h4,
.word-card h4 {
  margin: 0 0 8px;
}

.option-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.option-row button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 9px 11px;
}

.option-row button.selected {
  background: #e7f7f4;
  border-color: var(--teal);
}

.score-panel {
  border-left: 5px solid var(--green);
  background: #effaf4;
  padding: 16px;
  border-radius: 8px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 8px;
  padding: 0 8px;
  font-size: 12px;
  font-weight: 800;
  background: #eef2f6;
  color: #425466;
  margin-right: 6px;
}

.tag.orange {
  background: #fff4e1;
  color: #8a4b00;
}

.tag.blue {
  background: #e8f0ff;
  color: #244f9e;
}

.roadmap-list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.8;
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

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

  .hero-panel,
  .talk-layout,
  .split-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .main-content,
  .sidebar {
    padding: 16px;
  }

  .nav-list,
  .topic-grid,
  .subject-grid,
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .topbar,
  .section-heading,
  .chat-header {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-copy h3 {
    font-size: 30px;
  }

  .learning-map {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .map-line {
    display: none;
  }

  .message {
    max-width: 100%;
  }
}


.typing-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  gap: 16px;
}

.typing-workspace {
  padding: 22px;
}

.segmented-control {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f4f7f8;
}

.segmented-control button {
  min-height: 34px;
  border: 0;
  border-radius: 6px;
  padding: 0 10px;
  background: transparent;
  color: var(--muted);
  font-weight: 800;
}

.segmented-control button.active {
  background: #ffffff;
  color: var(--teal-dark);
  box-shadow: 0 1px 5px rgba(23, 32, 42, 0.12);
}

.typing-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.typing-stats div {
  min-height: 78px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfcfd;
  display: grid;
  align-content: center;
  gap: 2px;
}

.typing-stats strong {
  color: var(--teal-dark);
  font-size: 28px;
}

.typing-stats span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.typing-target {
  min-height: 140px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 18px;
  font-size: 24px;
  line-height: 1.7;
  word-break: break-word;
}

.typing-target .done {
  color: var(--green);
}

.typing-target .wrong {
  color: #b42318;
  background: #ffe7e3;
}

.typing-target .current {
  border-bottom: 3px solid var(--coral);
}

.typing-input {
  width: 100%;
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  resize: vertical;
  min-height: 130px;
  font-size: 18px;
  line-height: 1.5;
}

.typing-history {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.typing-history article {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fff;
  color: var(--muted);
  line-height: 1.45;
}

@media (max-width: 980px) {
  .typing-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .typing-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .typing-target {
    font-size: 20px;
  }

  .segmented-control {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }
}


.voice-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.voice-panel div {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfcfd;
}

.voice-panel strong {
  display: block;
  margin-bottom: 6px;
}

.voice-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.assessment-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfd;
}

.assessment-toolbar p {
  margin: 0;
  color: var(--muted);
}

.question-card.correct {
  border-color: rgba(47, 133, 90, 0.55);
  background: #f4fbf6;
}

.question-card.incorrect {
  border-color: rgba(217, 93, 57, 0.55);
  background: #fff7f4;
}

.answer-feedback {
  margin-top: 12px;
  padding: 12px;
  border-radius: 8px;
  background: #ffffff;
  border: 1px solid var(--line);
  color: var(--muted);
  line-height: 1.5;
}

.answer-feedback strong {
  color: var(--ink);
}

@media (max-width: 760px) {
  .voice-panel {
    grid-template-columns: 1fr;
  }

  .assessment-toolbar {
    align-items: stretch;
    flex-direction: column;
  }
}


.live-coach {
  grid-template-rows: auto auto auto minmax(220px, 1fr) auto;
}

.coach-stage {
  padding: 18px;
  border-bottom: 1px solid var(--line);
  background: #fbfcfd;
}

.stage-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #ffffff;
}

.stage-card h3 {
  margin: 10px 0 8px;
  font-size: 26px;
  line-height: 1.25;
}

.stage-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.stage-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.large-action {
  min-height: 52px;
  padding: 0 20px;
  font-size: 16px;
}

.listening-action.is-listening {
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(47, 133, 90, 0.16);
}

.voice-state {
  margin-top: 12px;
  border-radius: 8px;
  padding: 12px;
  background: #eef7f8;
  color: var(--teal-dark);
  font-weight: 800;
}

.conversation-feedback {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.conversation-feedback section {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfcfd;
}

.conversation-feedback strong {
  display: block;
  margin-bottom: 6px;
}

.conversation-feedback p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

@media (max-width: 860px) {
  .conversation-feedback {
    grid-template-columns: 1fr;
  }
}


.mentor-hero {
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
}

.daily-plan-card {
  border: 1px solid rgba(255,255,255,0.42);
  border-radius: 8px;
  padding: 20px;
  background: rgba(255,255,255,0.14);
}

.daily-plan-card h3 {
  margin: 0 0 10px;
  font-size: 24px;
}

.daily-plan-card p {
  color: #d6eef1;
  line-height: 1.5;
}

.progress-rail {
  height: 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.28);
  overflow: hidden;
  margin-top: 18px;
}

.progress-rail span {
  display: block;
  width: 0%;
  height: 100%;
  background: var(--amber);
  transition: width 180ms ease;
}

.plan-meta {
  margin-bottom: 0;
  font-size: 13px;
  font-weight: 800;
}

.plan-list {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.plan-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #ffffff;
}

.plan-item.current {
  border-color: var(--teal);
  background: #effafa;
  box-shadow: 0 0 0 3px rgba(8, 127, 140, 0.1);
}

.plan-item.done {
  border-color: rgba(47, 133, 90, 0.42);
  background: #f4fbf6;
}

.plan-index {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #eef2f6;
  font-weight: 900;
}

.plan-item.current .plan-index {
  background: var(--teal);
  color: #fff;
}

.plan-item h4 {
  margin: 0 0 4px;
}

.plan-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.4;
}

@media (max-width: 980px) {
  .mentor-hero {
    grid-template-columns: 1fr;
  }
}


.supervision-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.supervision-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  background: #ffffff;
}

.supervision-card.priority {
  border-color: rgba(8, 127, 140, 0.45);
  background: #effafa;
}

.supervision-card h4 {
  margin: 10px 0 8px;
}

.supervision-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 980px) {
  .supervision-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .supervision-grid {
    grid-template-columns: 1fr;
  }
}


.todo-board {
  display: grid;
  gap: 10px;
}

.todo-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 150px auto;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #ffffff;
}

.todo-row.passed {
  border-color: rgba(47, 133, 90, 0.5);
  background: #f4fbf6;
}

.todo-row.failed {
  border-color: rgba(217, 93, 57, 0.55);
  background: #fff7f4;
}

.todo-row.current {
  box-shadow: 0 0 0 3px rgba(8, 127, 140, 0.1);
}

.todo-status {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #eef2f6;
  font-weight: 900;
}

.todo-row.passed .todo-status {
  background: var(--green);
  color: #ffffff;
}

.todo-row.failed .todo-status {
  background: var(--coral);
  color: #ffffff;
}

.todo-main h4,
.todo-main p {
  margin: 0;
}

.todo-main p {
  margin-top: 4px;
  color: var(--muted);
  line-height: 1.4;
}

.quality-meter {
  display: grid;
  gap: 6px;
}

.quality-meter strong {
  color: var(--teal-dark);
}

.quality-bar {
  height: 9px;
  border-radius: 999px;
  background: #e9eef3;
  overflow: hidden;
}

.quality-bar span {
  display: block;
  height: 100%;
  background: var(--teal);
}

@media (max-width: 780px) {
  .todo-row {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .quality-meter,
  .todo-row .secondary-action {
    grid-column: 2;
  }
}


.advance-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.advance-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  background: #ffffff;
}

.advance-card.locked {
  background: #f4f7f8;
  color: var(--muted);
}

.advance-card h4 {
  margin: 10px 0 8px;
}

.advance-card p {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 980px) {
  .advance-board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .advance-board {
    grid-template-columns: 1fr;
  }
}


.adaptive-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.pace-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  background: #ffffff;
}

.pace-card.accelerate {
  border-color: rgba(47, 133, 90, 0.5);
  background: #f4fbf6;
}

.pace-card.repair {
  border-color: rgba(217, 93, 57, 0.55);
  background: #fff7f4;
}

.pace-card h4 {
  margin: 8px 0;
}

.pace-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 760px) {
  .adaptive-panel {
    grid-template-columns: 1fr;
  }
}


.vocab-load-panel,
.diagnostic-depth {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.load-card,
.depth-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcfd;
}

.load-card strong,
.depth-card strong {
  display: block;
  font-size: 24px;
  color: var(--teal-dark);
}

.load-card span,
.depth-card span {
  color: var(--muted);
  line-height: 1.4;
}

.load-card.priority {
  border-color: rgba(217, 93, 57, 0.45);
  background: #fff7f4;
}

@media (max-width: 980px) {
  .vocab-load-panel,
  .diagnostic-depth {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .vocab-load-panel,
  .diagnostic-depth {
    grid-template-columns: 1fr;
  }
}


/* Typing practice alignment fix */
.typing-target,
.typing-input {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 20px;
  line-height: 1.55;
  padding: 14px;
  white-space: pre-wrap;
  letter-spacing: 0;
}

.typing-target {
  min-height: 112px;
  display: block;
}

.typing-input {
  min-height: 112px;
}

.typing-target span {
  display: inline;
}


.subject-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.subject-tabs button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 0 12px;
  font-weight: 800;
  color: var(--muted);
}

.subject-tabs button.active {
  background: var(--teal);
  border-color: var(--teal);
  color: #ffffff;
}

.subject-detail {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #fbfcfd;
  margin-bottom: 14px;
}

.subject-detail-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: start;
  margin-bottom: 14px;
}

.subject-detail h4 {
  margin: 0 0 6px;
  font-size: 22px;
}

.subject-detail p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.subject-lanes {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.subject-lane {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #ffffff;
}

.subject-lane strong {
  display: block;
  margin-bottom: 8px;
}

.subject-lane ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.55;
}

.subject-score {
  min-width: 110px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #ffffff;
  text-align: center;
}

.subject-score strong {
  display: block;
  color: var(--teal-dark);
  font-size: 28px;
}

@media (max-width: 980px) {
  .subject-lanes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .subject-detail-head {
    flex-direction: column;
  }

  .subject-lanes {
    grid-template-columns: 1fr;
  }
}


.subject-hint {
  margin-top: 8px !important;
  font-size: 13px;
  font-weight: 800;
  color: var(--teal-dark) !important;
}

.grade-lane {
  border-color: rgba(8, 127, 140, 0.35);
}


.topic-vocabulary-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.topic-vocab-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #ffffff;
}

.topic-vocab-card strong {
  display: block;
  margin-bottom: 6px;
  color: var(--teal-dark);
}

.topic-vocab-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

@media (max-width: 860px) {
  .topic-vocabulary-panel {
    grid-template-columns: 1fr;
  }
}


.typing-translation {
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.45;
}

.typing-translation strong {
  color: var(--teal-dark);
}

.typing-line {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}


.sync-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}

.sync-file-label {
  display: inline-grid;
  place-items: center;
}

#importSyncFile {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

.sync-textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 13px;
  line-height: 1.45;
  resize: vertical;
}


.sync-status {
  margin-bottom: 12px;
  border: 1px solid rgba(8, 127, 140, 0.35);
  border-radius: 8px;
  padding: 12px;
  color: var(--teal-dark);
  background: #effafa;
  font-weight: 800;
}


.typing-controls {
  display: flex;
  align-items: end;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.typing-controls .field-label {
  margin-top: 0;
}

#typingGroupProgress {
  min-height: 42px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--teal-dark);
  background: #fbfcfd;
  font-weight: 900;
}

.word-source-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 14px 0;
}

.word-source-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.word-source-card div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.word-source-card span {
  color: var(--muted);
  font-size: 12px;
}

.word-source-card p {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
}

.word-chip {
  border: 1px solid var(--line);
  background: #f8fafc;
  border-radius: 999px;
  padding: 5px 8px;
  font-size: 12px;
  color: var(--ink);
}

.load-card[data-vocab-action] {
  appearance: none;
  text-align: left;
  cursor: pointer;
  transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease, background 140ms ease;
}

.load-card[data-vocab-action]:hover,
.load-card[data-vocab-action]:focus-visible {
  border-color: #177ddc;
  box-shadow: 0 0 0 3px rgba(23, 125, 220, 0.16);
  outline: none;
}

.load-card[data-vocab-action]:active {
  transform: translateY(1px);
}

.load-card[data-vocab-action].selected {
  border-color: #177ddc;
  background: #eef7ff;
  box-shadow: 0 0 0 3px rgba(23, 125, 220, 0.18);
}

.daily-word-schedule {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 14px 0;
}

.daily-word-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.daily-word-card div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.daily-word-card span {
  color: var(--muted);
  font-size: 12px;
}

.daily-word-card p {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
}

@media (max-width: 760px) {
  .daily-word-schedule,
  .word-source-panel {
    grid-template-columns: 1fr;
  }
}

.todo-section {
  display: grid;
  gap: 10px;
}

.todo-section-title {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: end;
  padding: 2px 2px 4px;
}

.todo-section-title strong {
  font-size: 17px;
  color: var(--ink);
}

.todo-section-title span {
  color: var(--muted);
  font-size: 13px;
}

.todo-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, #c7d2de 12%, #c7d2de 88%, transparent);
  margin: 16px 0;
}

.support-todo .todo-row {
  background: #fbfcfd;
}

.cathy-todo .todo-row {
  background: #ffffff;
}

.grammar-summary {
  margin-bottom: 14px;
}

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

.grammar-focus-card,
.grammar-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 16px;
}

.grammar-card.current,
.grammar-focus-card {
  border-color: rgba(0, 122, 138, 0.35);
  background: #f0fbfb;
}

.grammar-card h4,
.grammar-focus-card h4 {
  margin: 10px 0 8px;
}

.grammar-card p,
.grammar-focus-card p {
  color: var(--muted);
  line-height: 1.5;
}

.grammar-examples,
.grammar-collocations {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.grammar-examples span {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 9px;
  background: #fbfcfd;
  font-size: 13px;
}

@media (max-width: 820px) {
  .grammar-board {
    grid-template-columns: 1fr;
  }
}

.grammar-plan-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.grammar-question-list {
  display: grid;
  gap: 12px;
}

.grammar-question {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 16px;
}

.grammar-question.correct {
  border-color: rgba(47, 133, 90, 0.5);
  background: #f4fbf6;
}

.grammar-question.wrong {
  border-color: rgba(217, 93, 57, 0.55);
  background: #fff7f4;
}

.grammar-question-head {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.grammar-question h4 {
  margin: 0 0 12px;
}

.answer-feedback {
  margin-top: 12px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 820px) {
  .grammar-plan-grid {
    grid-template-columns: 1fr;
  }
}

.math-daily-panel {
  border: 1px solid rgba(0, 122, 138, 0.28);
  background: #f0fbfb;
  border-radius: 8px;
  padding: 16px;
  margin: 14px 0;
}

.math-daily-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.math-daily-head span {
  color: var(--muted);
}

.math-load-grid,
.math-topic-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.math-load-grid article,
.math-topic-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 12px;
}

.math-load-grid strong {
  display: block;
  font-size: 24px;
  color: var(--teal-dark);
}

.math-load-grid span,
.math-topic-list span,
.math-topic-list p {
  color: var(--muted);
  line-height: 1.4;
}

.math-system-line {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0;
}

@media (max-width: 820px) {
  .math-load-grid,
  .math-topic-list {
    grid-template-columns: 1fr;
  }
}

.kana-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 16px;
  margin: 14px 0;
}

.kana-summary-card,
.kana-question,
.kana-cell {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.kana-summary-card {
  background: #f0fbfb;
  border-color: rgba(0, 122, 138, 0.28);
}

.kana-split,
.kana-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

.kana-cell {
  width: 86px;
  min-height: 86px;
  display: grid;
  place-items: center;
  gap: 2px;
}

.kana-cell strong {
  font-size: 26px;
  color: var(--teal-dark);
}

.kana-cell b {
  font-size: 22px;
}

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

.kana-methods {
  display: grid;
  align-content: start;
  gap: 10px;
}

.kana-quiz {
  display: grid;
  gap: 12px;
}

.kana-question.correct {
  border-color: rgba(47, 133, 90, 0.5);
  background: #f4fbf6;
}

.kana-question.wrong {
  border-color: rgba(217, 93, 57, 0.55);
  background: #fff7f4;
}

.kana-question h4 {
  font-size: 34px;
  margin: 8px 0 12px;
}

@media (max-width: 900px) {
  .kana-layout {
    grid-template-columns: 1fr;
  }
}

.japanese-textbook-panel {
  border: 1px solid rgba(217, 93, 57, 0.25);
  background: #fff7f4;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 14px;
}

.lesson-flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.lesson-flow article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 12px;
}

.lesson-flow span,
.lesson-flow p {
  color: var(--muted);
  line-height: 1.4;
}

@media (max-width: 980px) {
  .lesson-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .lesson-flow {
    grid-template-columns: 1fr;
  }
}

.ict-daily-panel {
  border: 1px solid rgba(217, 93, 57, 0.32);
  background: #fff7f4;
  border-radius: 8px;
  padding: 16px;
  margin: 14px 0;
}

.kana-cell {
  appearance: none;
  cursor: pointer;
  text-align: center;
}

.kana-cell:hover,
.kana-cell:focus-visible {
  border-color: #177ddc;
  box-shadow: 0 0 0 3px rgba(23, 125, 220, 0.16);
  outline: none;
}

.kana-cell.speaking {
  border-color: #007a8a;
  background: #e8fbfb;
  transform: translateY(1px);
}

.speak-inline {
  border: 1px solid var(--line);
  background: #f8fafc;
  border-radius: 999px;
  width: 28px;
  height: 28px;
  display: inline-grid;
  place-items: center;
  margin-right: 8px;
  cursor: pointer;
}

.speak-inline:hover,
.speak-inline:focus-visible,
.speak-chip:hover,
.sentence-play:hover {
  border-color: #177ddc;
  box-shadow: 0 0 0 3px rgba(23, 125, 220, 0.16);
  outline: none;
}

.speaking {
  border-color: #007a8a !important;
  background: #e8fbfb !important;
}

.listening-summary-card,
.listening-task-grid article,
.listening-practice-list {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 16px;
}

.listening-summary-card {
  border-color: rgba(0, 122, 138, 0.28);
  background: #f0fbfb;
  margin-bottom: 14px;
}

.listening-task-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.listening-task-grid span,
.listening-task-grid p {
  color: var(--muted);
  line-height: 1.4;
}

.listening-chip-row,
.listening-sentence-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sentence-play {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfd;
  padding: 9px 11px;
  text-align: left;
  cursor: pointer;
}

@media (max-width: 900px) {
  .listening-task-grid {
    grid-template-columns: 1fr;
  }
}

.lesson-step-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 12px;
  text-align: left;
  cursor: pointer;
}

.lesson-step-card:hover,
.lesson-step-card:focus-visible,
.lesson-step-card.active {
  border-color: #177ddc;
  box-shadow: 0 0 0 3px rgba(23, 125, 220, 0.16);
  outline: none;
}

.lesson-step-card.active {
  background: #eef7ff;
}

.lesson-step-card span,
.lesson-step-card p {
  color: var(--muted);
  line-height: 1.4;
}

.japanese-lesson-workspace {
  margin-top: 12px;
}

.japanese-lesson-workspace article {
  border: 1px solid rgba(0, 122, 138, 0.28);
  border-radius: 8px;
  background: #f0fbfb;
  padding: 14px;
}

.japanese-lesson-workspace ul {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.55;
}

.subject-action-card,
.clickable-subject-card {
  appearance: none;
  text-align: left;
  cursor: pointer;
}

.subject-action-card:hover,
.subject-action-card:focus-visible,
.clickable-subject-card:hover,
.clickable-subject-card:focus-visible {
  border-color: #177ddc;
  box-shadow: 0 0 0 3px rgba(23, 125, 220, 0.16);
  outline: none;
}

.subject-action-workspace {
  border: 1px solid rgba(0, 122, 138, 0.28);
  border-radius: 8px;
  background: #f0fbfb;
  padding: 14px;
  margin: 14px 0;
}

.subject-action-workspace ul {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.55;
}

.subject-action-card.active {
  border-color: #177ddc;
  background: #eef7ff;
  box-shadow: 0 0 0 3px rgba(23, 125, 220, 0.18);
}

.subject-question-list {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.subject-question {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.subject-question.correct {
  border-color: rgba(47, 133, 90, 0.5);
  background: #f4fbf6;
}

.subject-question.wrong {
  border-color: rgba(217, 93, 57, 0.55);
  background: #fff7f4;
}

.subject-question h5 {
  margin: 0 0 10px;
  font-size: 16px;
}


.japanese-practice-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.jp-vocab-card,
.jp-pattern-card,
.jp-reading-box {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  padding: 12px;
}

.jp-vocab-card div {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.jp-vocab-card strong {
  color: var(--teal);
  font-size: 1.35rem;
}

.jp-vocab-card em {
  color: var(--muted);
  font-style: normal;
}

.jp-pattern-card h5,
.jp-reading-box h5 {
  margin: 8px 0;
  font-size: 1rem;
}

.jp-reading-box p {
  border-top: 1px solid var(--border);
  margin: 0;
  padding: 10px 0;
}

.inline-audio-btn {
  border: 1px solid var(--teal);
  color: var(--teal);
  background: #f0fdfa;
  border-radius: 999px;
  padding: 4px 9px;
  font-weight: 800;
  cursor: pointer;
}

.inline-audio-btn:hover,
.inline-audio-btn:focus-visible,
.inline-audio-btn.speaking {
  background: var(--teal);
  color: #fff;
}


.subject-lane.clickable-lane {
  width: 100%;
  text-align: left;
  font: inherit;
  cursor: pointer;
}

.subject-lane.clickable-lane:hover,
.subject-lane.clickable-lane:focus-visible {
  border-color: var(--teal);
  background: #f0fdfa;
  box-shadow: 0 0 0 3px rgba(0, 128, 128, 0.12);
}


.listening-task-card {
  display: block;
  width: 100%;
  min-height: 148px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  padding: 16px;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.listening-task-card strong {
  display: block;
  margin-bottom: 8px;
}

.listening-task-card span,
.listening-task-card p {
  color: var(--muted);
}

.listening-task-card:hover,
.listening-task-card:focus-visible,
.grammar-card:hover,
.grammar-card:focus-visible {
  border-color: var(--teal);
  background: #f0fdfa;
  box-shadow: 0 0 0 3px rgba(0, 128, 128, 0.12);
}

button.grammar-card {
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
}


.show-answer-btn {
  border: 1px solid var(--teal);
  background: #f0fdfa;
  color: var(--teal);
  font-weight: 800;
}

.show-answer-btn:hover,
.show-answer-btn:focus-visible {
  background: var(--teal);
  color: #fff;
}


.math-knowledge-map {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
  margin: 12px 0 16px;
}

.knowledge-unit-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
  text-align: left;
  font: inherit;
  cursor: pointer;
}

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

.knowledge-unit-card strong {
  color: var(--teal);
  font-size: 1.1rem;
}

.knowledge-unit-card span,
.knowledge-unit-card p,
.knowledge-unit-card li,
.knowledge-unit-card em {
  color: var(--muted);
}

.knowledge-unit-card ul {
  margin: 10px 0;
  padding-left: 18px;
}

.knowledge-unit-card:hover,
.knowledge-unit-card:focus-visible,
.knowledge-unit-card.active {
  border-color: var(--teal);
  background: #f0fdfa;
}

.math-breakdown {
  display: grid;
  gap: 10px;
  margin-top: 12px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.math-breakdown div {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
}

.math-breakdown p,
.math-breakdown ul,
.math-breakdown ol {
  margin: 6px 0 0;
}


.goal-planner,
.subject-track-grid,
.shared-skill-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.goal-card,
.subject-track-card,
.shared-skill-card,
.subject-track-panel,
.shared-skill-panel {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
}

.goal-card,
.subject-track-card,
.shared-skill-card {
  padding: 16px;
  text-align: left;
}

.goal-card.priority,
.subject-track-card.active {
  border-color: #7cc7c9;
  background: #eefafa;
}

.subject-track-panel,
.shared-skill-panel {
  padding: 16px;
  margin-top: 14px;
}

.subject-panel-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  color: var(--muted);
}

.subject-panel-head strong {
  color: var(--ink);
}

.subject-track-card strong,
.shared-skill-card strong,
.goal-card h4 {
  display: block;
  margin: 4px 0;
}

.subject-track-card span,
.shared-skill-card span,
.subject-track-card p,
.goal-card p {
  color: var(--muted);
}

.shared-skill-card:hover,
.shared-skill-card:focus-visible,
.subject-track-card:hover,
.subject-track-card:focus-visible {
  border-color: var(--teal);
  background: #f4fbfb;
}

@media (max-width: 980px) {
  .goal-planner,
  .subject-track-grid,
  .shared-skill-grid {
    grid-template-columns: 1fr;
  }
}


.papers-dashboard {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.papers-note,
.paper-collection-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 16px;
}

.papers-note.priority {
  border-color: #7cc7c9;
  background: #eefafa;
}

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

.paper-collection-card h4 {
  margin: 8px 0;
}

.paper-collection-card small {
  color: var(--muted);
  font-size: 13px;
}

.paper-status {
  margin-top: 10px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--muted);
  background: #fafbfc;
}

@media (max-width: 980px) {
  .papers-dashboard,
  .papers-list {
    grid-template-columns: 1fr;
  }
}


.question-bank-home {
  display: grid;
  gap: 16px;
  margin-top: 14px;
}

.question-bank-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
  gap: 14px;
  align-items: stretch;
}

.question-bank-head h4,
.knowledge-detail-main h4,
.knowledge-practice-panel h4 {
  margin: 8px 0;
}

.question-bank-rule {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

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

.question-bank-rule span,
.knowledge-detail-main li,
.knowledge-mini-question p,
.next-system-grid span {
  color: var(--muted);
}

.knowledge-system-section {
  border-top: 1px solid rgba(0, 122, 138, 0.18);
  padding-top: 14px;
}

.knowledge-unit-grid,
.next-system-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.next-system-grid article {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.next-system-grid strong,
.next-system-grid span {
  display: block;
}

.knowledge-detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 14px;
  margin-top: 14px;
}

.knowledge-detail-main,
.knowledge-practice-panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.mistake-chip-row,
.knowledge-question-list {
  display: grid;
  gap: 10px;
}

.mistake-chip-row {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.mistake-chip-row span,
.knowledge-mini-question {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #f8fafc;
  padding: 10px;
}

.knowledge-mini-question details {
  margin-top: 8px;
}

@media (max-width: 760px) {
  .question-bank-head,
  .knowledge-detail-layout {
    grid-template-columns: 1fr;
  }
}


.inline-link-button,
.inline-card-action {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border: 1px solid rgba(0, 122, 138, 0.28);
  border-radius: 8px;
  background: #fff;
  color: var(--teal);
  font-weight: 800;
  font-size: 0.9rem;
}

.inline-link-button {
  margin-top: 10px;
  padding: 8px 10px;
  cursor: pointer;
}

.inline-card-action {
  margin-top: 10px;
  padding: 6px 8px;
}


.subject-stage-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.subject-stage-panel,
.stage-focus-card {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
}

.subject-stage-panel {
  padding: 16px;
  margin-top: 14px;
}

.subject-stage-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 12px;
  text-align: left;
  font: inherit;
  cursor: pointer;
}

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

.subject-stage-card strong {
  color: var(--teal);
  font-size: 1.15rem;
}

.subject-stage-card span,
.subject-stage-card p,
.stage-focus-card li {
  color: var(--muted);
}

.subject-stage-card.active {
  border-color: var(--teal);
  background: #eefafa;
  box-shadow: 0 0 0 3px rgba(0, 122, 138, 0.12);
}

.subject-stage-card.locked {
  opacity: 0.58;
}

.stage-focus-card {
  margin-top: 12px;
  padding: 14px;
  background: #fff;
}

.stage-focus-card strong {
  display: block;
  margin: 8px 0;
}

.stage-focus-card ul {
  margin: 0;
  padding-left: 18px;
  line-height: 1.55;
}

@media (max-width: 980px) {
  .subject-stage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .subject-stage-grid {
    grid-template-columns: 1fr;
  }
}


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

.materials-intake-card,
.materials-workflow {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.materials-intake-card.priority {
  border-color: rgba(0, 122, 138, 0.38);
  background: #eefafa;
}

.materials-intake-card h4 {
  margin: 8px 0;
}

.materials-intake-card p,
.materials-workflow span {
  color: var(--muted);
  line-height: 1.55;
}

.materials-intake-card code {
  display: block;
  margin-top: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  padding: 8px;
  white-space: normal;
  overflow-wrap: anywhere;
}

.materials-workflow {
  margin-top: 12px;
}

.materials-workflow strong,
.materials-workflow span {
  display: block;
}

@media (max-width: 760px) {
  .materials-intake-grid {
    grid-template-columns: 1fr;
  }
}


.math-principle-panel {
  border: 1px solid rgba(0, 122, 138, 0.28);
  border-radius: 8px;
  background: #ffffff;
  padding: 14px;
  margin-top: 14px;
}

.math-principle-panel h4 {
  margin: 8px 0;
}

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

.math-principle-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  padding: 12px;
}

.math-principle-grid ol,
.math-principle-grid ul {
  margin: 8px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.55;
}

@media (max-width: 860px) {
  .math-principle-grid {
    grid-template-columns: 1fr;
  }
}


.course-progress-panel {
  border: 1px solid rgba(0, 122, 138, 0.28);
  border-radius: 8px;
  background: #ffffff;
  padding: 14px;
  margin: 14px 0;
}

.course-progress-list {
  display: grid;
  gap: 12px;
}

.course-lesson-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  padding: 14px;
}

.course-lesson-card h4 {
  margin: 8px 0;
}

.course-lesson-card small,
.course-lesson-card p {
  color: var(--muted);
}

.mini-action {
  min-height: 34px;
  margin-top: 8px;
  padding: 0 10px;
}

.knowledge-mini-question.correct {
  border-color: rgba(35, 134, 84, 0.55);
  background: #effaf4;
}

.knowledge-mini-question.wrong {
  border-color: rgba(225, 94, 60, 0.55);
  background: #fff5f1;
}

.feynman-coach-panel {
  border: 1px solid var(--line);
  background: #fffaf1;
  padding: 16px;
  margin: 16px 0;
}

.feynman-step-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.feynman-step-card {
  border: 1px solid #f1c27d;
  background: #fff;
  padding: 12px;
}

.feynman-step-card span {
  display: inline-flex;
  width: 28px;
  height: 28px;
  align-items: center;
  justify-content: center;
  background: #d9583b;
  color: #fff;
  font-weight: 900;
  margin-bottom: 8px;
}

.feynman-step-card strong {
  display: block;
  margin-bottom: 6px;
}

.feynman-step-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

@media (max-width: 900px) {
  .feynman-step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .feynman-step-grid {
    grid-template-columns: 1fr;
  }
}

.ict-practice-panel {
  margin-top: 16px;
}


.compliance-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  margin-top: 28px;
  padding: 16px 0 8px;
  font-size: 13px;
  line-height: 1.45;
}

.compliance-footer strong {
  color: var(--ink);
  display: block;
  margin-bottom: 4px;
}

.compliance-links {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.compliance-links a {
  color: var(--teal);
  font-weight: 800;
  text-decoration: none;
}

.compliance-links a:hover {
  text-decoration: underline;
}

body.auth-locked {
  overflow: hidden;
}

body.auth-locked .app-shell {
  filter: blur(10px);
  height: 100vh;
  overflow: hidden;
  pointer-events: none;
  user-select: none;
}

.login-gate {
  align-items: center;
  background: rgba(248, 250, 252, 0.96);
  display: none;
  inset: 0;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  position: fixed;
  z-index: 1000;
}

body.auth-locked .login-gate {
  display: flex;
}

.login-panel {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.18);
  max-width: 420px;
  padding: 28px;
  width: min(100%, 420px);
}

.login-panel h2 {
  font-size: 30px;
  margin: 4px 0 10px;
}

.login-copy {
  color: var(--muted);
  line-height: 1.5;
  margin: 0 0 20px;
}

.login-panel label {
  color: var(--ink);
  display: block;
  font-weight: 800;
  margin: 14px 0 6px;
}

.login-panel input,
.login-panel select {
  border: 1px solid var(--line);
  font: inherit;
  padding: 12px;
  width: 100%;
}

.login-panel button {
  margin-top: 18px;
  width: 100%;
}

.login-error {
  color: #b42318;
  font-weight: 800;
  min-height: 20px;
  margin: 12px 0 0;
}