:root {
  --luxo-hero-start: #0d1b2a;
  --luxo-hero-end: #1a2d45;
  --luxo-surface-soft: color-mix(in srgb, var(--bg) 90%, white 10%);
  --luxo-accent-green: #2d9b6f;
  --luxo-accent-red: #c0392b;
  --luxo-accent-blue: #4d7cb8;
  --luxo-cream-glow: rgba(245, 240, 232, 0.55);
  --luxo-card-gradient: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(245, 240, 232, 0.9));
  --luxo-safe-top: env(safe-area-inset-top, 0px);
  --luxo-safe-bottom: env(safe-area-inset-bottom, 0px);
}

[data-theme="dark"] {
  --luxo-surface-soft: rgba(255, 255, 255, 0.03);
  --luxo-card-gradient: linear-gradient(145deg, rgba(18, 28, 41, 0.96), rgba(10, 20, 32, 0.92));
  --luxo-cream-glow: rgba(232, 201, 122, 0.1);
}

html {
  scroll-behavior: smooth;
}

body {
  background:
    radial-gradient(circle at top left, rgba(201, 168, 76, 0.08), transparent 28%),
    radial-gradient(circle at 84% 10%, rgba(45, 155, 111, 0.07), transparent 24%),
    linear-gradient(180deg, color-mix(in srgb, var(--bg) 96%, white 4%), var(--bg));
  color: var(--text-primary);
}

.luxo-hero,
.panel,
.path-card,
.answer-btn,
.chip,
.top-btn,
.theme-btn,
.toast {
  transition:
    background-color 0.25s ease,
    border-color 0.25s ease,
    color 0.25s ease,
    box-shadow 0.25s ease,
    transform 0.2s ease,
    opacity 0.2s ease;
}

.luxo-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--luxo-hero-start) 0%, var(--luxo-hero-end) 100%);
  color: #ffffff;
  padding: calc(34px + var(--luxo-safe-top)) 0 48px;
}

.luxo-hero::before,
.luxo-hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.luxo-hero::before {
  top: -120px;
  right: -70px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle at center, rgba(201, 168, 76, 0.2), rgba(201, 168, 76, 0.02) 68%, transparent 72%);
}

.luxo-hero::after {
  left: 12%;
  bottom: -170px;
  width: 460px;
  height: 320px;
  background: radial-gradient(circle at center, rgba(45, 155, 111, 0.16), transparent 68%);
}

.hero-actions {
  position: absolute;
  top: calc(16px + var(--luxo-safe-top));
  right: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 2;
}

.top-btn,
.theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.07);
  color: rgba(255, 255, 255, 0.76);
  text-decoration: none;
  cursor: pointer;
  box-shadow: none;
}

.top-btn {
  padding: 0 14px;
  font-family: var(--font-head);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.theme-btn {
  width: 38px;
  padding: 0;
}

.top-btn:hover,
.theme-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(201, 168, 76, 0.48);
  background: rgba(201, 168, 76, 0.16);
  color: var(--gold-light);
}

.ico-moon {
  display: block;
}

.ico-sun {
  display: none;
}

[data-theme="dark"] .ico-moon {
  display: none;
}

[data-theme="dark"] .ico-sun {
  display: block;
}

.container {
  width: min(100%, 1180px);
  padding: 0 24px;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-badge,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(201, 168, 76, 0.34);
  background: rgba(201, 168, 76, 0.12);
  color: var(--gold-light);
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-kicker {
  color: var(--navy-mid);
  background: rgba(201, 168, 76, 0.1);
}

[data-theme="dark"] .section-kicker {
  color: var(--gold-light);
}

.luxo-hero h1 {
  margin: 18px 0 12px;
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
  color: #ffffff;
}

.hero-copy {
  max-width: 780px;
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  line-height: 1.75;
}

.hero-ribbon {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 26px;
}

.ribbon-card {
  padding: 15px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.14);
  backdrop-filter: blur(12px);
}

.ribbon-label {
  display: block;
  margin-bottom: 6px;
  color: rgba(255, 255, 255, 0.54);
  font-size: 11px;
  font-family: var(--font-head);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ribbon-card strong {
  font-family: var(--font-head);
  font-size: 1.18rem;
  color: #ffffff;
}

.luxo-main {
  padding-top: 30px;
  padding-bottom: calc(56px + var(--luxo-safe-bottom));
}

.overview-grid,
.content-grid {
  display: grid;
  gap: 16px;
}

.overview-grid {
  grid-template-columns: 1.15fr 0.95fr 0.9fr;
  margin-bottom: 16px;
}

.content-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.12fr);
  align-items: start;
}

.panel {
  background: var(--luxo-card-gradient);
  border: 1px solid var(--border-light);
  border-radius: 22px;
  box-shadow: var(--shadow-md);
  padding: 20px;
}

[data-theme="dark"] .panel {
  background: var(--luxo-card-gradient);
}

.panel-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.panel-head h2 {
  margin: 0;
  font-size: clamp(1.18rem, 3vw, 1.55rem);
  line-height: 1.12;
}

.dashboard-stats,
.achievement-grid,
.mission-tags,
.review-list,
.path-list,
.vocab-grid,
.phrase-grid,
.grammar-list,
.chip-row,
.dashboard-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.stat-card {
  padding: 14px;
  border-radius: 16px;
  background: color-mix(in srgb, var(--bg-card) 80%, var(--bg) 20%);
  border: 1px solid var(--border-light);
}

[data-theme="dark"] .stat-card {
  background: rgba(255, 255, 255, 0.03);
}

.stat-label {
  display: block;
  margin-bottom: 4px;
  color: var(--text-muted);
  font-size: 11px;
  font-family: var(--font-head);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stat-value {
  font-family: var(--font-head);
  font-size: 1.35rem;
  line-height: 1.05;
}

.progress-wrap {
  margin-top: 4px;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  color: var(--text-secondary);
  font-size: 13px;
}

.progress-track {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 78%, var(--gold-light) 22%);
  overflow: hidden;
}

[data-theme="dark"] .progress-track {
  background: rgba(255, 255, 255, 0.07);
}

.progress-fill {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--gold) 0%, var(--green) 100%);
  box-shadow: 0 0 18px rgba(45, 155, 111, 0.25);
}

.small-note,
.mission-copy,
.install-panel p,
.note-panel p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.68;
}

.mission-tags {
  margin: 16px 0 18px;
}

.tag,
.achievement-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg-card) 65%, var(--bg) 35%);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 12px;
}

[data-theme="dark"] .tag,
[data-theme="dark"] .achievement-tag {
  background: rgba(255, 255, 255, 0.03);
}

.install-list {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--text-secondary);
}

.install-list li + li {
  margin-top: 8px;
}

.controls-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.8fr);
  gap: 16px;
}

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

.field-wide {
  grid-column: 1 / -1;
}

.field span {
  color: var(--text-muted);
  font-size: 11px;
  font-family: var(--font-head);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.field input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border-radius: 14px;
  border: 1.5px solid var(--border);
  background: color-mix(in srgb, var(--bg-card) 80%, var(--bg) 20%);
  color: var(--text-primary);
  outline: none;
}

.field input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.12);
}

.chip-row {
  gap: 8px;
}

.chip {
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-card) 82%, var(--bg) 18%);
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 12px;
  cursor: pointer;
}

.chip:hover {
  border-color: rgba(201, 168, 76, 0.45);
  transform: translateY(-1px);
}

.chip.is-active {
  background: var(--navy);
  border-color: var(--navy);
  color: #ffffff;
}

[data-theme="dark"] .chip.is-active {
  background: rgba(201, 168, 76, 0.15);
  border-color: rgba(201, 168, 76, 0.28);
  color: var(--gold-light);
}

.path-column,
.detail-column {
  display: grid;
  gap: 16px;
}

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

.path-card {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--border-light);
  background: color-mix(in srgb, var(--bg-card) 86%, var(--bg) 14%);
  cursor: pointer;
}

[data-theme="dark"] .path-card {
  background: rgba(255, 255, 255, 0.03);
}

.path-card:hover {
  transform: translateY(-1px);
  border-color: rgba(201, 168, 76, 0.42);
}

.path-card::after {
  content: "";
  position: absolute;
  left: 28px;
  top: calc(100% + 4px);
  width: 2px;
  height: 14px;
  background: linear-gradient(180deg, rgba(201, 168, 76, 0.4), rgba(201, 168, 76, 0));
}

.path-card:last-child::after {
  display: none;
}

.path-icon {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, rgba(13, 27, 42, 0.08), rgba(201, 168, 76, 0.12));
  font-size: 20px;
}

[data-theme="dark"] .path-icon {
  background: linear-gradient(145deg, rgba(201, 168, 76, 0.12), rgba(255, 255, 255, 0.03));
}

.path-title {
  margin: 0 0 5px;
  font-size: 1rem;
  line-height: 1.2;
}

.path-meta,
.lesson-meta,
.mini-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mini-pill,
.level-pill,
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-family: var(--font-head);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
}

.level-pill {
  background: rgba(77, 124, 184, 0.08);
  color: var(--luxo-accent-blue);
}

.status-pill.is-complete {
  background: rgba(45, 155, 111, 0.1);
  color: var(--green);
}

.status-pill.is-perfect {
  background: rgba(201, 168, 76, 0.12);
  color: var(--gold);
}

.path-card.is-current {
  border-color: rgba(201, 168, 76, 0.52);
  box-shadow: 0 10px 24px rgba(201, 168, 76, 0.12);
}

.path-card.is-current .path-icon {
  box-shadow: 0 0 0 4px rgba(201, 168, 76, 0.12);
}

.path-card.is-locked {
  opacity: 0.58;
  cursor: not-allowed;
}

.path-card.is-locked:hover {
  transform: none;
}

.path-score {
  text-align: right;
}

.path-score strong {
  display: block;
  font-family: var(--font-head);
  font-size: 1.05rem;
}

.path-score span {
  color: var(--text-muted);
  font-size: 12px;
}

.empty-state {
  padding: 16px;
  border-radius: 16px;
  border: 1px dashed var(--border);
  color: var(--text-secondary);
  background: var(--luxo-surface-soft);
}

.lesson-panel {
  position: sticky;
  top: 16px;
}

.lesson-cover {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.lesson-cover-icon {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  background: radial-gradient(circle at 30% 30%, rgba(201, 168, 76, 0.25), rgba(201, 168, 76, 0.08) 55%, transparent 65%), linear-gradient(145deg, rgba(13, 27, 42, 0.08), rgba(45, 155, 111, 0.12));
}

.lesson-description {
  margin: 14px 0 18px;
  color: var(--text-secondary);
}

.lesson-block + .lesson-block {
  margin-top: 18px;
}

.lesson-block h3 {
  margin: 0 0 10px;
  font-size: 1rem;
}

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

.vocab-card,
.phrase-card,
.review-card,
.achievement-card {
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--border-light);
  background: color-mix(in srgb, var(--bg-card) 84%, var(--bg) 16%);
}

[data-theme="dark"] .vocab-card,
[data-theme="dark"] .phrase-card,
[data-theme="dark"] .review-card,
[data-theme="dark"] .achievement-card {
  background: rgba(255, 255, 255, 0.03);
}

.vocab-card strong,
.phrase-card strong {
  display: block;
  font-family: var(--font-head);
  font-size: 1.04rem;
  line-height: 1.2;
}

.vocab-card span,
.phrase-card span,
.review-card p,
.achievement-card p {
  display: block;
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: 13px;
}

.grammar-list {
  flex-direction: column;
}

.grammar-item {
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--border-light);
  background: var(--luxo-surface-soft);
}

.grammar-item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.96rem;
}

.lesson-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.btn,
.btn.secondary,
.answer-btn,
.ghost-btn {
  min-height: 46px;
  border-radius: 14px;
  border: 1.5px solid transparent;
  padding: 0 16px;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.btn {
  background: var(--navy);
  color: #ffffff;
  border-color: var(--navy);
}

.btn:hover,
.ghost-btn:hover,
.answer-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn.secondary,
.ghost-btn {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}

.btn.secondary:hover,
.ghost-btn:hover {
  color: var(--navy);
  border-color: var(--gold);
}

[data-theme="dark"] .btn.secondary:hover,
[data-theme="dark"] .ghost-btn:hover {
  color: var(--gold-light);
}

.btn:disabled,
.ghost-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.challenge-placeholder,
.challenge-result,
.review-card,
.achievement-card {
  color: var(--text-secondary);
}

.challenge-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.challenge-counter {
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-head);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.challenge-question {
  margin: 0 0 18px;
  font-size: 1.08rem;
  line-height: 1.45;
}

.answer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.answer-btn {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  width: 100%;
  padding: 14px 16px;
  text-align: left;
  background: color-mix(in srgb, var(--bg-card) 82%, var(--bg) 18%);
  border-color: var(--border);
  color: var(--text-primary);
  text-transform: none;
  letter-spacing: normal;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
}

.answer-btn.is-correct {
  border-color: rgba(45, 155, 111, 0.5);
  background: rgba(45, 155, 111, 0.12);
  color: var(--green);
}

.answer-btn.is-wrong {
  border-color: rgba(192, 57, 43, 0.48);
  background: rgba(192, 57, 43, 0.1);
  color: var(--red);
}

.feedback-box {
  margin-top: 14px;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--border-light);
  background: var(--luxo-surface-soft);
}

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

.feedback-box.good strong {
  color: var(--green);
}

.feedback-box.bad strong {
  color: var(--red);
}

.challenge-actions,
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.review-list {
  flex-direction: column;
}

.review-card,
.achievement-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.review-card h3,
.achievement-card h3 {
  margin: 0;
  font-size: 1rem;
}

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

.achievement-card.is-unlocked {
  border-color: rgba(201, 168, 76, 0.42);
  box-shadow: 0 8px 22px rgba(201, 168, 76, 0.1);
}

.achievement-card.is-locked {
  opacity: 0.65;
}

.luxo-footer {
  padding: 18px 24px calc(18px + var(--luxo-safe-bottom));
  background: var(--navy);
  color: rgba(255, 255, 255, 0.48);
  text-align: center;
  font-size: 12px;
}

.mobile-tabbar {
  display: none;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(18px + var(--luxo-safe-bottom));
  transform: translateX(-50%) translateY(14px);
  z-index: 30;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid rgba(201, 168, 76, 0.34);
  background: rgba(13, 27, 42, 0.92);
  color: #ffffff;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 1080px) {
  .overview-grid,
  .content-grid,
  .controls-grid {
    grid-template-columns: 1fr;
  }

  .lesson-panel,
  .challenge-panel {
    position: static;
  }
}

@media (max-width: 740px) {
  .container {
    padding: 0 14px;
  }

  .luxo-hero {
    padding: calc(24px + var(--luxo-safe-top)) 0 28px;
  }

  .hero-actions {
    top: calc(12px + var(--luxo-safe-top));
    right: 12px;
    gap: 8px;
  }

  .top-btn {
    padding: 0 12px;
  }

  .hero-copy {
    font-size: 14px;
    line-height: 1.62;
  }

  .hero-ribbon {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 18px;
  }

  .ribbon-card {
    padding: 12px 14px;
  }

  .luxo-main {
    padding-top: 18px;
    padding-bottom: calc(96px + var(--luxo-safe-bottom));
  }

  .panel {
    padding: 16px;
    border-radius: 18px;
  }

  .mobile-content-grid {
    display: block;
  }

  .mobile-pane {
    display: none;
  }

  body[data-mobile-view="overview"] .mobile-pane-overview {
    display: block;
  }

  body[data-mobile-view="overview"] .overview-grid.mobile-pane-overview {
    display: grid;
  }

  body[data-mobile-view="path"] .mobile-pane-path {
    display: block;
  }

  body[data-mobile-view="path"] .path-column.mobile-pane-path {
    display: grid;
    gap: 16px;
    margin-top: 16px;
  }

  body[data-mobile-view="lesson"] .detail-column.mobile-pane-lesson {
    display: grid;
    gap: 16px;
  }

  .mobile-tabbar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 80;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    padding: 12px 14px calc(12px + var(--luxo-safe-bottom));
    background: color-mix(in srgb, var(--bg) 88%, transparent 12%);
    border-top: 1px solid var(--border-light);
    backdrop-filter: blur(16px);
  }

  .mobile-tab-btn {
    min-height: 48px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: color-mix(in srgb, var(--bg-card) 86%, var(--bg) 14%);
    color: var(--text-secondary);
    font-family: var(--font-head);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .mobile-tab-btn.is-active {
    border-color: rgba(201, 168, 76, 0.42);
    background: var(--navy);
    color: #ffffff;
    box-shadow: var(--shadow-md);
  }

  .toast {
    bottom: calc(86px + var(--luxo-safe-bottom));
    z-index: 90;
  }

  .dashboard-stats,
  .vocab-grid,
  .achievement-grid {
    grid-template-columns: 1fr;
  }

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

  .path-score {
    grid-column: 2;
    text-align: left;
  }

  .luxo-footer {
    padding-left: 14px;
    padding-right: 14px;
    margin-bottom: calc(78px + var(--luxo-safe-bottom));
  }
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
}

.app-header.luxo-hero {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 120;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  padding: calc(12px + var(--luxo-safe-top)) 14px 12px;
  min-height: calc(60px + var(--luxo-safe-top));
  background: linear-gradient(180deg, rgba(13, 27, 42, 0.98), rgba(13, 27, 42, 0.9));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.app-header.luxo-hero::before,
.app-header.luxo-hero::after {
  display: none;
}

.app-title {
  margin: 0;
  text-align: center;
  font-family: var(--font-head);
  font-size: 1rem;
  color: #ffffff;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.app-header .top-btn,
.app-header .theme-btn {
  min-height: 36px;
  border-radius: 12px;
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.86);
}

.app-header .top-btn {
  padding: 0 12px;
  font-size: 10px;
}

.luxo-main.app-shell {
  position: fixed;
  left: 0;
  right: 0;
  top: calc(62px + var(--luxo-safe-top));
  bottom: calc(72px + var(--luxo-safe-bottom));
  width: 100%;
  padding: 12px;
  overflow: hidden;
}

.app-view {
  display: none;
  height: 100%;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.app-view.is-active {
  display: block;
}

.app-view .panel + .panel {
  margin-top: 12px;
}

#view-overview .overview-grid {
  grid-template-columns: 1fr;
  margin-bottom: 0;
}

#view-path .controls-grid {
  grid-template-columns: 1fr;
}

#view-path .field-wide {
  grid-column: auto;
}

#view-lesson .lesson-panel,
#view-lesson .challenge-panel {
  position: static;
}

.app-tabbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 110;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  padding: 10px 12px calc(10px + var(--luxo-safe-bottom));
  background: color-mix(in srgb, var(--bg) 94%, transparent 6%);
  border-top: 1px solid var(--border-light);
  backdrop-filter: blur(14px);
}

.app-tab-btn {
  min-height: 50px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--bg-card) 84%, var(--bg) 16%);
  color: var(--text-secondary);
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.app-tab-btn.is-active {
  border-color: rgba(201, 168, 76, 0.45);
  background: var(--navy);
  color: #ffffff;
}

.luxo-footer {
  display: none;
}

.toast {
  bottom: calc(84px + var(--luxo-safe-bottom));
  z-index: 140;
}

@media (min-width: 900px) {
  .luxo-main.app-shell {
    width: min(920px, 100%);
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    padding: 16px;
  }

  #view-overview .overview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #view-path .controls-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  #view-path .field-wide {
    grid-column: 1 / -1;
  }
}

/* Mobile app rework */
:root {
  --app-ink: #101820;
  --app-ink-2: #172536;
  --app-paper: #fff8ea;
  --app-card: rgba(255, 252, 244, 0.92);
  --app-soft: #f4ead6;
  --app-line: rgba(16, 24, 32, 0.11);
  --app-muted: #73808d;
  --app-gold: #e4b64d;
  --app-green: #2fa978;
  --app-blue: #557cc8;
  --app-red: #d45b4f;
  --app-shadow: 0 18px 44px rgba(25, 29, 35, 0.13);
  --app-shadow-soft: 0 10px 28px rgba(25, 29, 35, 0.09);
  --app-safe-top: env(safe-area-inset-top, 0px);
  --app-safe-bottom: env(safe-area-inset-bottom, 0px);
}

[data-theme="dark"] {
  --app-ink: #f5ead9;
  --app-ink-2: #f9f0df;
  --app-paper: #07111c;
  --app-card: rgba(12, 24, 38, 0.9);
  --app-soft: #122033;
  --app-line: rgba(228, 182, 77, 0.16);
  --app-muted: rgba(245, 234, 217, 0.58);
  --app-shadow: 0 22px 48px rgba(0, 0, 0, 0.38);
  --app-shadow-soft: 0 12px 30px rgba(0, 0, 0, 0.26);
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% -10%, rgba(228, 182, 77, 0.34), transparent 34%),
    radial-gradient(circle at 96% 12%, rgba(47, 169, 120, 0.22), transparent 28%),
    linear-gradient(145deg, #f8edd8 0%, #fffaf0 46%, #edf4ef 100%);
  color: var(--app-ink);
  font-family: var(--font-body);
}

[data-theme="dark"] body {
  background:
    radial-gradient(circle at 20% -10%, rgba(228, 182, 77, 0.18), transparent 32%),
    radial-gradient(circle at 90% 18%, rgba(85, 124, 200, 0.2), transparent 30%),
    linear-gradient(145deg, #040912 0%, #081221 48%, #0d1924 100%);
}

button,
input {
  font: inherit;
}

.app-header.luxo-hero {
  position: fixed;
  inset: 0 0 auto;
  z-index: 120;
  display: grid;
  grid-template-columns: 54px 1fr 44px;
  align-items: center;
  gap: 8px;
  min-height: calc(76px + var(--app-safe-top));
  padding: calc(12px + var(--app-safe-top)) 14px 12px;
  background:
    linear-gradient(135deg, rgba(16, 24, 32, 0.98), rgba(25, 43, 57, 0.94)),
    radial-gradient(circle at 30% 0%, rgba(228, 182, 77, 0.2), transparent 42%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 18px 36px rgba(10, 18, 28, 0.18);
}

.app-header.luxo-hero::before,
.app-header.luxo-hero::after {
  display: none;
}

.app-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 0;
  color: #fff8ea;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 15px;
  background: linear-gradient(145deg, #f3ca68, #d99b35);
  color: #101820;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: -0.04em;
  box-shadow: 0 12px 28px rgba(228, 182, 77, 0.24);
}

.app-title {
  margin: 0;
  color: #fff8ea;
  font-size: 1.03rem;
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-transform: none;
}

.app-subtitle {
  margin: 2px 0 0;
  color: rgba(255, 248, 234, 0.56);
  font-size: 0.7rem;
  line-height: 1.1;
  white-space: nowrap;
}

.app-header .top-btn,
.app-header .theme-btn {
  min-height: 40px;
  border-radius: 15px;
  border: 1px solid rgba(255, 248, 234, 0.14);
  background: rgba(255, 248, 234, 0.08);
  color: rgba(255, 248, 234, 0.82);
  box-shadow: none;
}

.app-header .top-btn {
  padding: 0 10px;
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-transform: none;
}

.app-header .theme-btn {
  width: 40px;
  padding: 0;
}

.luxo-main.app-shell {
  position: fixed;
  left: 0;
  right: 0;
  top: calc(76px + var(--app-safe-top));
  bottom: calc(78px + var(--app-safe-bottom));
  width: 100%;
  padding: 14px 14px 18px;
  overflow: hidden;
}

.app-view {
  display: none;
  height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.app-view::-webkit-scrollbar {
  display: none;
}

.app-view.is-active {
  display: block;
}

.app-view .panel + .panel {
  margin-top: 14px;
}

.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--app-line);
  border-radius: 28px;
  background: var(--app-card);
  box-shadow: var(--app-shadow-soft);
  padding: 18px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.dashboard-panel {
  background:
    radial-gradient(circle at 88% 0%, rgba(228, 182, 77, 0.24), transparent 34%),
    linear-gradient(145deg, rgba(16, 24, 32, 0.98), rgba(27, 45, 57, 0.96));
  color: #fff8ea;
}

.dashboard-panel .section-kicker,
.dashboard-panel .small-note,
.dashboard-panel .progress-meta {
  color: rgba(255, 248, 234, 0.68);
}

.panel-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.panel-head h2 {
  margin: 0;
  color: inherit;
  font-size: clamp(1.26rem, 6vw, 1.75rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.section-kicker {
  width: fit-content;
  border: 0;
  border-radius: 999px;
  padding: 6px 10px;
  background: rgba(228, 182, 77, 0.14);
  color: #9b7328;
  font-family: var(--font-head);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

[data-theme="dark"] .section-kicker {
  color: #f3ca68;
}

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.stat-card {
  min-height: 74px;
  padding: 13px;
  border: 1px solid rgba(255, 248, 234, 0.09);
  border-radius: 20px;
  background: rgba(255, 248, 234, 0.08);
}

.stat-label {
  display: block;
  margin-bottom: 7px;
  color: rgba(255, 248, 234, 0.48);
  font-family: var(--font-head);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stat-value {
  color: #fff8ea;
  font-family: var(--font-head);
  font-size: 1.45rem;
  line-height: 1;
  letter-spacing: -0.05em;
}

.progress-wrap {
  margin-top: 4px;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 9px;
  font-size: 0.82rem;
}

.progress-track,
.challenge-progress {
  height: 11px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 248, 234, 0.14);
}

.progress-fill,
.challenge-progress span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--app-gold), var(--app-green));
  box-shadow: 0 0 20px rgba(47, 169, 120, 0.24);
}

.small-note,
.mission-copy,
.lesson-description,
.challenge-placeholder,
.challenge-result p {
  margin: 0;
  color: var(--app-muted);
  font-size: 0.94rem;
  line-height: 1.58;
}

.dashboard-panel .small-note {
  margin-top: 13px;
}

.dashboard-actions,
.lesson-footer,
.challenge-actions,
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.btn,
.btn.secondary,
.ghost-btn,
.answer-btn,
.chip {
  min-height: 48px;
  border-radius: 17px;
  border: 1px solid transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.btn,
.ghost-btn {
  padding: 0 16px;
  font-family: var(--font-head);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.btn {
  background: linear-gradient(145deg, #141e27, #24384a);
  border-color: rgba(16, 24, 32, 0.2);
  color: #fff8ea;
  box-shadow: 0 12px 28px rgba(16, 24, 32, 0.18);
}

.btn-wide {
  flex: 1 1 170px;
}

.btn.secondary,
.ghost-btn {
  background: rgba(255, 255, 255, 0.28);
  border-color: var(--app-line);
  color: var(--app-ink);
  box-shadow: none;
}

[data-theme="dark"] .btn.secondary,
[data-theme="dark"] .ghost-btn {
  background: rgba(255, 255, 255, 0.04);
  color: var(--app-ink);
}

.btn:disabled,
.ghost-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.mission-tags,
.lesson-meta,
.path-meta,
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mission-tags {
  margin: 16px 0 18px;
}

.compact-tags {
  margin-top: 12px;
}

.tag,
.achievement-tag,
.mini-pill,
.level-pill,
.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  border: 1px solid var(--app-line);
  background: rgba(255, 255, 255, 0.32);
  color: var(--app-muted);
  padding: 5px 10px;
  font-size: 0.73rem;
  line-height: 1;
}

[data-theme="dark"] .tag,
[data-theme="dark"] .achievement-tag,
[data-theme="dark"] .mini-pill,
[data-theme="dark"] .level-pill,
[data-theme="dark"] .status-pill {
  background: rgba(255, 255, 255, 0.04);
}

.level-pill {
  color: var(--app-blue);
}

.status-pill.is-complete {
  color: var(--app-green);
}

.status-pill.is-perfect,
.achievement-tag {
  color: #a77521;
}

[data-theme="dark"] .status-pill.is-perfect,
[data-theme="dark"] .achievement-tag {
  color: #f3ca68;
}

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

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

.field span {
  color: var(--app-muted);
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.field input {
  width: 100%;
  min-height: 50px;
  border: 1px solid var(--app-line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.42);
  color: var(--app-ink);
  outline: none;
  padding: 0 14px;
}

[data-theme="dark"] .field input {
  background: rgba(255, 255, 255, 0.04);
}

.field input:focus {
  border-color: rgba(228, 182, 77, 0.58);
  box-shadow: 0 0 0 4px rgba(228, 182, 77, 0.12);
}

.chip {
  min-height: 38px;
  padding: 0 13px;
  background: rgba(255, 255, 255, 0.34);
  border-color: var(--app-line);
  color: var(--app-muted);
  font-size: 0.82rem;
}

.chip.is-active {
  background: #141e27;
  border-color: #141e27;
  color: #fff8ea;
}

[data-theme="dark"] .chip {
  background: rgba(255, 255, 255, 0.04);
}

[data-theme="dark"] .chip.is-active {
  background: rgba(228, 182, 77, 0.16);
  border-color: rgba(228, 182, 77, 0.35);
  color: #f3ca68;
}

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

.path-card {
  position: relative;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 13px;
  align-items: start;
  padding: 15px;
  border: 1px solid var(--app-line);
  border-radius: 24px;
  background: var(--app-card);
  cursor: pointer;
  box-shadow: var(--app-shadow-soft);
}

.path-card::after {
  content: "";
  position: absolute;
  left: 41px;
  top: calc(100% + 1px);
  width: 2px;
  height: 12px;
  background: linear-gradient(180deg, rgba(228, 182, 77, 0.45), transparent);
}

.path-card:last-child::after {
  display: none;
}

.path-card.is-current {
  border-color: rgba(228, 182, 77, 0.7);
  box-shadow: 0 16px 34px rgba(228, 182, 77, 0.14);
}

.path-card.is-locked {
  opacity: 0.55;
  cursor: not-allowed;
}

.path-icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 58px;
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(228, 182, 77, 0.24), rgba(47, 169, 120, 0.09));
  font-size: 1.35rem;
}

.path-icon small {
  margin-top: -5px;
  color: var(--app-muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
}

.path-title {
  margin: 0;
  color: var(--app-ink);
  font-size: 1rem;
  line-height: 1.16;
  letter-spacing: -0.02em;
}

.path-subtitle {
  margin: 4px 0 10px;
  color: var(--app-muted);
  font-size: 0.82rem;
  line-height: 1.32;
}

.path-score {
  grid-column: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 2px;
  color: var(--app-muted);
  font-size: 0.77rem;
}

.path-score strong {
  color: var(--app-ink);
  font-family: var(--font-head);
}

.lesson-cover {
  display: flex;
  align-items: center;
  gap: 13px;
}

.lesson-cover-icon {
  display: grid;
  place-items: center;
  flex: 0 0 62px;
  width: 62px;
  height: 62px;
  border-radius: 24px;
  background:
    radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.76), transparent 38%),
    linear-gradient(145deg, rgba(228, 182, 77, 0.34), rgba(47, 169, 120, 0.16));
  font-size: 1.75rem;
  box-shadow: 0 14px 28px rgba(228, 182, 77, 0.13);
}

.lesson-subtitle {
  margin: 3px 0 10px;
  color: var(--app-muted);
  font-size: 0.88rem;
  line-height: 1.3;
}

.lesson-description {
  margin-bottom: 14px;
  color: var(--app-ink);
  font-size: 1rem;
}

.culture-card {
  display: block;
  margin: 0 0 18px;
  padding: 14px;
  border: 1px solid rgba(228, 182, 77, 0.26);
  border-radius: 20px;
  background: rgba(228, 182, 77, 0.11);
}

.culture-card strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-head);
  font-size: 0.88rem;
  letter-spacing: -0.02em;
}

.culture-card span {
  color: var(--app-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.lesson-block + .lesson-block {
  margin-top: 18px;
}

.lesson-block h3 {
  margin: 0 0 10px;
  color: var(--app-ink);
  font-size: 1rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.vocab-grid,
.phrase-grid,
.grammar-list {
  display: grid;
  gap: 10px;
}

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

.vocab-card,
.phrase-card,
.grammar-item {
  border: 1px solid var(--app-line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.34);
  padding: 13px;
}

[data-theme="dark"] .vocab-card,
[data-theme="dark"] .phrase-card,
[data-theme="dark"] .grammar-item {
  background: rgba(255, 255, 255, 0.04);
}

.vocab-card strong,
.phrase-card strong,
.grammar-item strong {
  display: block;
  color: var(--app-ink);
  font-family: var(--font-head);
  font-size: 1rem;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.vocab-card span,
.phrase-card span,
.grammar-item span,
.vocab-card small {
  display: block;
  color: var(--app-muted);
  font-size: 0.84rem;
  line-height: 1.42;
}

.vocab-card span,
.phrase-card span,
.grammar-item span {
  margin-top: 6px;
}

.vocab-card small {
  margin-top: 8px;
  opacity: 0.76;
}

.challenge-panel {
  margin-bottom: 4px;
}

.challenge-placeholder {
  display: grid;
  gap: 14px;
}

.challenge-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.challenge-counter {
  flex: 0 0 auto;
  color: var(--app-muted);
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.challenge-progress {
  margin: -2px 0 16px;
  background: rgba(16, 24, 32, 0.08);
}

[data-theme="dark"] .challenge-progress {
  background: rgba(255, 255, 255, 0.07);
}

.challenge-question {
  margin: 0 0 16px;
  color: var(--app-ink);
  font-size: 1.08rem;
  line-height: 1.42;
  font-weight: 700;
}

.answer-grid {
  display: grid;
  gap: 10px;
}

.answer-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 56px;
  border-color: var(--app-line);
  background: rgba(255, 255, 255, 0.44);
  color: var(--app-ink);
  padding: 12px 13px;
  text-align: left;
  font-size: 0.96rem;
  line-height: 1.3;
}

[data-theme="dark"] .answer-btn {
  background: rgba(255, 255, 255, 0.04);
}

.answer-btn > span {
  display: inline-grid;
  place-items: center;
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  border-radius: 12px;
  background: rgba(16, 24, 32, 0.08);
  color: var(--app-muted);
  font-family: var(--font-head);
  font-weight: 800;
}

[data-theme="dark"] .answer-btn > span {
  background: rgba(255, 255, 255, 0.08);
}

.answer-btn.is-correct {
  border-color: rgba(47, 169, 120, 0.48);
  background: rgba(47, 169, 120, 0.12);
  color: var(--app-green);
}

.answer-btn.is-wrong {
  border-color: rgba(212, 91, 79, 0.5);
  background: rgba(212, 91, 79, 0.11);
  color: var(--app-red);
}

.feedback-box {
  margin-top: 14px;
  border: 1px solid var(--app-line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.34);
  padding: 14px;
}

[data-theme="dark"] .feedback-box {
  background: rgba(255, 255, 255, 0.04);
}

.feedback-box strong {
  display: block;
  margin-bottom: 5px;
  color: var(--app-ink);
}

.feedback-box span {
  color: var(--app-muted);
  line-height: 1.5;
}

.feedback-box.good strong {
  color: var(--app-green);
}

.feedback-box.bad strong {
  color: var(--app-red);
}

.result-score {
  display: grid;
  place-items: center;
  min-height: 128px;
  border-radius: 26px;
  background:
    radial-gradient(circle at 50% 0%, rgba(228, 182, 77, 0.2), transparent 46%),
    rgba(255, 255, 255, 0.34);
}

[data-theme="dark"] .result-score {
  background:
    radial-gradient(circle at 50% 0%, rgba(228, 182, 77, 0.16), transparent 46%),
    rgba(255, 255, 255, 0.04);
}

.result-score span {
  color: var(--app-muted);
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.result-score strong {
  color: var(--app-ink);
  font-family: var(--font-head);
  font-size: 3rem;
  line-height: 0.95;
  letter-spacing: -0.08em;
}

.empty-state {
  border: 1px dashed var(--app-line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.24);
  color: var(--app-muted);
  padding: 16px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(92px + var(--app-safe-bottom));
  z-index: 140;
  width: min(calc(100% - 32px), 420px);
  border: 1px solid rgba(255, 248, 234, 0.12);
  border-radius: 999px;
  background: rgba(16, 24, 32, 0.94);
  color: #fff8ea;
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.2);
  padding: 13px 16px;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(12px);
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.app-tabbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 110;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
  padding: 10px 12px calc(10px + var(--app-safe-bottom));
  background: rgba(255, 250, 240, 0.82);
  border-top: 1px solid var(--app-line);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

[data-theme="dark"] .app-tabbar {
  background: rgba(7, 17, 28, 0.82);
}

.app-tab-btn {
  display: grid;
  place-items: center;
  gap: 3px;
  min-height: 58px;
  border: 1px solid transparent;
  border-radius: 20px;
  background: transparent;
  color: var(--app-muted);
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: none;
}

.tab-icon {
  display: grid;
  place-items: center;
  width: 28px;
  height: 24px;
  color: inherit;
  font-size: 1.04rem;
  line-height: 1;
}

.app-tab-btn.is-active {
  border-color: rgba(228, 182, 77, 0.34);
  background: #141e27;
  color: #fff8ea;
  box-shadow: 0 12px 28px rgba(16, 24, 32, 0.17);
}

@media (max-width: 360px) {
  .vocab-grid,
  .dashboard-stats {
    grid-template-columns: 1fr;
  }

  .app-subtitle {
    display: none;
  }
}

@media (min-width: 760px) {
  .app-header.luxo-hero,
  .luxo-main.app-shell,
  .app-tabbar {
    width: min(520px, 100%);
    left: 50%;
    right: auto;
    transform: translateX(-50%);
  }

  .app-header.luxo-hero {
    border-radius: 0 0 30px 30px;
  }

  .luxo-main.app-shell {
    padding-inline: 16px;
  }

  .app-tabbar {
    border-radius: 30px 30px 0 0;
    border-left: 1px solid var(--app-line);
    border-right: 1px solid var(--app-line);
  }
}

/* Screen-focused lesson flow: no long lesson scrolling */
#view-lesson {
  overflow: hidden;
}

#view-lesson .panel + .panel {
  margin-top: 0;
}

#view-lesson .lesson-panel,
#view-lesson .challenge-panel {
  height: 100%;
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.challenge-panel[hidden],
body[data-lesson-mode="challenge"] #lesson-panel,
body[data-lesson-mode="study"] #challenge-panel {
  display: none !important;
}

#view-lesson .lesson-panel {
  padding: 15px;
}

#view-lesson .lesson-panel .panel-head {
  flex: 0 0 auto;
  margin-bottom: 10px;
}

#view-lesson .lesson-cover {
  gap: 11px;
}

#view-lesson .lesson-cover-icon {
  flex-basis: 50px;
  width: 50px;
  height: 50px;
  border-radius: 19px;
  font-size: 1.45rem;
}

#view-lesson .lesson-cover h2 {
  font-size: clamp(1.12rem, 5.4vw, 1.45rem);
}

#view-lesson .lesson-subtitle {
  margin-bottom: 7px;
  font-size: 0.8rem;
}

#view-lesson .lesson-meta {
  gap: 6px;
}

#view-lesson .mini-pill,
#view-lesson .level-pill,
#view-lesson .status-pill,
#view-lesson .achievement-tag {
  min-height: 25px;
  padding: 4px 8px;
  font-size: 0.66rem;
}

.focus-deck {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.focus-progress {
  flex: 0 0 auto;
  height: 9px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(16, 24, 32, 0.08);
}

[data-theme="dark"] .focus-progress {
  background: rgba(255, 255, 255, 0.07);
}

.focus-progress span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--app-gold), var(--app-green));
}

.focus-card {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
  border: 1px solid rgba(228, 182, 77, 0.25);
  border-radius: 28px;
  background:
    radial-gradient(circle at 16% 0%, rgba(228, 182, 77, 0.22), transparent 38%),
    rgba(255, 255, 255, 0.36);
  padding: 18px;
}

[data-theme="dark"] .focus-card {
  background:
    radial-gradient(circle at 16% 0%, rgba(228, 182, 77, 0.14), transparent 38%),
    rgba(255, 255, 255, 0.04);
}

.focus-count {
  position: absolute;
  top: 14px;
  right: 14px;
  color: var(--app-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.focus-eyebrow {
  width: fit-content;
  border-radius: 999px;
  background: rgba(228, 182, 77, 0.15);
  color: #9b7328;
  padding: 6px 10px;
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

[data-theme="dark"] .focus-eyebrow {
  color: #f3ca68;
}

.focus-card strong {
  display: block;
  color: var(--app-ink);
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 8.5vw, 2.35rem);
  line-height: 1.02;
  letter-spacing: -0.06em;
}

.focus-card-objective strong,
.focus-card-grammar strong {
  font-size: clamp(1.14rem, 5.4vw, 1.55rem);
  line-height: 1.14;
}

.focus-card p {
  margin: 0;
  color: var(--app-muted);
  font-size: clamp(0.95rem, 4.2vw, 1.08rem);
  line-height: 1.52;
}

.focus-card small {
  color: var(--app-muted);
  font-size: 0.84rem;
  line-height: 1.35;
}

.focus-controls {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: minmax(86px, auto) 1fr minmax(86px, auto);
  gap: 8px;
  align-items: center;
}

.focus-controls .ghost-btn {
  min-height: 42px;
  padding: 0 10px;
  border-radius: 15px;
  font-size: 0.66rem;
}

.focus-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-width: 0;
}

.focus-dots button {
  width: 6px;
  height: 6px;
  border: 0;
  border-radius: 999px;
  background: rgba(16, 24, 32, 0.18);
  padding: 0;
}

[data-theme="dark"] .focus-dots button {
  background: rgba(255, 255, 255, 0.18);
}

.focus-dots button.is-active {
  width: 18px;
  background: var(--app-gold);
}

#view-lesson .lesson-footer {
  flex: 0 0 auto;
  margin-top: 11px;
  gap: 8px;
}

#view-lesson .lesson-footer .btn,
#view-lesson .lesson-footer .ghost-btn {
  min-height: 44px;
}

#view-lesson .lesson-footer .achievement-tag {
  display: none;
}

body[data-lesson-mode="challenge"] #view-lesson {
  overflow: hidden;
}

body[data-lesson-mode="challenge"] #view-lesson .challenge-panel {
  padding: 16px;
}

body[data-lesson-mode="challenge"] .challenge-panel .panel-head {
  flex: 0 0 auto;
  margin-bottom: 14px;
}

body[data-lesson-mode="challenge"] .answer-grid {
  flex: 1 1 auto;
  min-height: 0;
}

body[data-lesson-mode="challenge"] .result-actions,
body[data-lesson-mode="challenge"] .challenge-actions {
  flex: 0 0 auto;
}

@media (max-width: 360px) {
  .focus-controls {
    grid-template-columns: 1fr 1fr;
  }

  .focus-dots {
    grid-column: 1 / -1;
    order: -1;
  }
}

/* Screen-focused home: dashboard + mission fit in one viewport */
#view-overview {
  overflow: hidden;
}

#view-overview.app-view.is-active {
  display: grid;
  grid-template-rows: minmax(0, 1.22fr) minmax(0, 0.78fr);
  gap: 12px;
}

#view-overview .panel {
  min-height: 0;
  overflow: hidden;
  padding: 14px;
}

#view-overview .panel + .panel {
  margin-top: 0;
}

#view-overview .panel-head {
  gap: 6px;
  margin-bottom: 10px;
}

#view-overview .panel-head h2 {
  font-size: clamp(1.18rem, 5.2vw, 1.45rem);
}

#view-overview .section-kicker {
  padding: 5px 9px;
  font-size: 0.61rem;
}

#view-overview .dashboard-stats {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 10px;
}

#view-overview .stat-card {
  min-height: 58px;
  padding: 10px 11px;
  border-radius: 17px;
}

#view-overview .stat-label {
  margin-bottom: 5px;
  font-size: 0.55rem;
}

#view-overview .stat-value {
  font-size: 1.12rem;
}

#view-overview .progress-meta {
  margin-bottom: 6px;
  font-size: 0.76rem;
}

#view-overview .progress-track {
  height: 9px;
}

#view-overview .small-note,
#view-overview .mission-copy {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
}

#view-overview .small-note {
  -webkit-line-clamp: 2;
  margin-top: 9px;
  font-size: 0.84rem;
}

#view-overview .dashboard-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: 10px;
}

#view-overview #review-button {
  display: none;
}

#view-overview .dashboard-actions .btn,
#view-overview .dashboard-actions .ghost-btn,
#view-overview .mission-panel .btn {
  min-height: 42px;
  border-radius: 15px;
  padding: 0 10px;
  font-size: 0.64rem;
}

#view-overview .mission-copy {
  -webkit-line-clamp: 3;
  font-size: 0.86rem;
  line-height: 1.45;
}

#view-overview .mission-tags {
  gap: 6px;
  margin: 10px 0;
}

#view-overview .tag {
  min-height: 26px;
  padding: 4px 8px;
  font-size: 0.68rem;
}

@media (max-height: 760px) {
  #view-overview.app-view.is-active {
    grid-template-rows: minmax(0, 1.18fr) minmax(0, 0.72fr);
    gap: 10px;
  }

  #view-overview .stat-card {
    min-height: 50px;
  }

  #view-overview .small-note {
    -webkit-line-clamp: 1;
  }

  #view-overview .mission-copy {
    -webkit-line-clamp: 2;
  }
}