:root,
[data-theme="light"] {
  --bg-main: #FAF6F0;
  --bg-elevated: #FFFFFF;
  --bg-subtle: #F1EAE0;
  --bg-board: #EDE4D7;
  --text-main: #2F2A38;
  --text-muted: #6E677A;
  --border-soft: #E2D9C8;
  --border-strong: #C9BCA8;
  --shadow-card: 0 6px 0 #E2D9C8, 0 8px 18px rgba(47, 42, 56, 0.06);
  --shadow-btn: 0 4px 0 #D8CEBE;
  --shadow-inner: inset 0 3px 6px rgba(0, 0, 0, 0.06);

  /* Calm kid-friendly palette */
  --accent-primary: #5E7CE2;
  --accent-primary-shadow: #425EC2;
  --accent-primary-soft: #E8EEFC;

  --accent-green: #48B884;
  --accent-green-shadow: #339467;
  --accent-green-soft: #E4F7EE;

  --accent-amber: #F2A93B;
  --accent-amber-shadow: #CF881D;
  --accent-amber-soft: #FDF3E1;

  --accent-coral: #E86F68;
  --accent-coral-shadow: #C45049;
  --accent-coral-soft: #FCEAE8;

  --accent-purple: #9B72CF;
  --accent-purple-shadow: #7851AC;
  --accent-purple-soft: #F2EBF9;

  --accent-teal: #38A3A5;
  --accent-teal-shadow: #277E80;
  --accent-teal-soft: #E3F4F4;
}

[data-theme="dark"] {
  --bg-main: #181B24;
  --bg-elevated: #232836;
  --bg-subtle: #2C3244;
  --bg-board: #1F2430;
  --text-main: #F2EFE9;
  --text-muted: #A6ADBF;
  --border-soft: #363E54;
  --border-strong: #4A5470;
  --shadow-card: 0 6px 0 #11131A, 0 8px 20px rgba(0, 0, 0, 0.35);
  --shadow-btn: 0 4px 0 #12151E;
  --shadow-inner: inset 0 3px 6px rgba(0, 0, 0, 0.3);

  --accent-primary: #6D89EC;
  --accent-primary-shadow: #4964C4;
  --accent-primary-soft: #263152;

  --accent-green: #4CC48D;
  --accent-green-shadow: #319668;
  --accent-green-soft: #1F3B32;

  --accent-amber: #F5B553;
  --accent-amber-shadow: #C7892C;
  --accent-amber-soft: #3E3322;

  --accent-coral: #EC7C76;
  --accent-coral-shadow: #BA544E;
  --accent-coral-soft: #402629;

  --accent-purple: #AC87DB;
  --accent-purple-shadow: #7F5BAE;
  --accent-purple-soft: #312844;

  --accent-teal: #4BB6B8;
  --accent-teal-shadow: #2F888A;
  --accent-teal-soft: #1F383C;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
  min-height: 100dvh;
  overflow-x: hidden;
  touch-action: manipulation;
  transition: background-color 0.25s ease, color 0.25s ease;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
  touch-action: manipulation;
}

/* Layout Shell */
.app-shell {
  max-width: 960px;
  margin: 0 auto;
  padding: env(safe-area-inset-top, 12px) 16px env(safe-area-inset-bottom, 24px);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* Top Bar */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 4px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.brand-logo {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  box-shadow: var(--shadow-btn);
  flex-shrink: 0;
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.brand-subtitle {
  font-size: 0.84rem;
  color: var(--text-muted);
  font-weight: 600;
}

.top-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.pill-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--bg-elevated);
  border: 2px solid var(--border-soft);
  box-shadow: var(--shadow-btn);
  padding: 8px 14px;
  border-radius: 16px;
  font-weight: 700;
  font-size: 0.92rem;
  transition: transform 0.1s ease, background-color 0.2s ease;
}

.pill-btn:active {
  transform: translateY(2px);
}

.pill-btn.exit-btn {
  background: var(--accent-coral-soft);
  border-color: var(--accent-coral);
  color: var(--accent-coral);
  padding: 9px 16px;
  font-size: 1rem;
}

.pill-btn.primary-btn {
  background: var(--accent-primary);
  border-color: var(--accent-primary-shadow);
  box-shadow: 0 4px 0 var(--accent-primary-shadow);
  color: #FFFFFF;
}

.pill-btn.green-btn {
  background: var(--accent-green);
  border-color: var(--accent-green-shadow);
  box-shadow: 0 4px 0 var(--accent-green-shadow);
  color: #FFFFFF;
}

/* Category Filter Bar */
.category-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 6px 2px 14px;
  scrollbar-width: none;
}
.category-bar::-webkit-scrollbar {
  display: none;
}

.cat-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 2px solid var(--border-soft);
  box-shadow: 0 3px 0 var(--border-soft);
  font-weight: 700;
  font-size: 0.92rem;
  white-space: nowrap;
  color: var(--text-muted);
}

.cat-chip.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary-shadow);
  box-shadow: 0 3px 0 var(--accent-primary-shadow);
  color: #FFFFFF;
}

/* Game Grid on Home Page */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(215px, 1fr));
  gap: 16px;
  padding-bottom: 28px;
}

@media (max-width: 520px) {
  .games-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}

.game-card {
  background: var(--bg-elevated);
  border: 2px solid var(--border-soft);
  border-radius: 24px;
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
  box-shadow: var(--shadow-card);
  transition: transform 0.12s ease;
  position: relative;
}

.game-card:active {
  transform: translateY(3px);
}

.game-card-icon {
  width: 68px;
  height: 68px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.3rem;
}

.game-card-title {
  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1.25;
}

.game-card-skill {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-subtle);
  color: var(--text-muted);
}

/* Game Container & Header */
.game-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  border: 2px solid var(--border-soft);
  border-radius: 28px;
  padding: 18px;
  box-shadow: var(--shadow-card);
  margin-bottom: 16px;
}

.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--bg-subtle);
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.game-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.game-header-icon {
  font-size: 1.75rem;
}

.game-header-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0;
}

.level-selector {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 16px;
}

.level-btn {
  padding: 8px 16px;
  border-radius: 14px;
  background: var(--bg-subtle);
  border: 2px solid transparent;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.level-btn.active {
  background: var(--accent-primary-soft);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.game-prompt {
  text-align: center;
  font-size: 1.2rem;
  font-weight: 700;
  margin: 6px 0 16px;
  padding: 12px 16px;
  background: var(--bg-subtle);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.game-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  width: 100%;
}

/* Gentle Completion Overlay */
.completion-card {
  text-align: center;
  padding: 28px 20px;
  background: var(--bg-subtle);
  border-radius: 24px;
  max-width: 420px;
  width: 100%;
  margin: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.completion-emoji {
  font-size: 3.6rem;
}

.completion-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 0;
}

.completion-msg {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin: 0;
}

.completion-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

/* 1. Memory Pairs Grid */
.memory-grid {
  display: grid;
  gap: 12px;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}

.memory-card {
  aspect-ratio: 1;
  border-radius: 20px;
  background: var(--accent-primary-soft);
  border: 3px solid var(--accent-primary);
  box-shadow: 0 5px 0 var(--border-soft);
  font-size: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease, transform 0.15s ease;
}

.memory-card.revealed {
  background: var(--bg-elevated);
  border-color: var(--accent-amber);
}

.memory-card.matched {
  background: var(--accent-green-soft);
  border-color: var(--accent-green);
  opacity: 0.9;
}

/* 2. Marble Jump Board */
.marble-board {
  display: grid;
  gap: 10px;
  padding: 18px;
  background: var(--bg-board);
  border-radius: 28px;
  box-shadow: var(--shadow-inner);
}

.marble-cell {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 420px) {
  .marble-cell {
    width: 42px;
    height: 42px;
  }
}

.marble-cell.hole {
  background: rgba(0, 0, 0, 0.12);
  box-shadow: var(--shadow-inner);
}

.marble-cell.valid-target {
  background: var(--accent-green-soft);
  border: 3px dashed var(--accent-green);
}

.marble-piece {
  width: 84%;
  height: 84%;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 32%, #8FA8FF, #4E6CE0);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.22), inset 0 2px 4px rgba(255, 255, 255, 0.5);
  transition: transform 0.15s ease;
}

.marble-cell.selected .marble-piece {
  background: radial-gradient(circle at 32% 32%, #FFD670, #E0911B);
  transform: scale(1.12);
  outline: 3px solid var(--accent-amber);
}

/* 3. Mental Rotation & Choice Cards */
.choice-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 16px;
}

.choice-card {
  min-width: 110px;
  min-height: 110px;
  padding: 16px;
  border-radius: 24px;
  background: var(--bg-subtle);
  border: 3px solid var(--border-soft);
  box-shadow: var(--shadow-btn);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 2.2rem;
  font-weight: 800;
  transition: transform 0.12s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.choice-card.correct {
  background: var(--accent-green-soft);
  border-color: var(--accent-green);
}

.choice-card.wrong {
  background: var(--accent-coral-soft);
  border-color: var(--accent-coral);
}

/* 4. Emoji Mahjong */
.mahjong-board {
  position: relative;
  width: 100%;
  max-width: 540px;
  height: 360px;
  background: var(--bg-board);
  border-radius: 24px;
  margin: 0 auto;
  overflow: hidden;
}

.mahjong-tile {
  position: absolute;
  width: 64px;
  height: 78px;
  border-radius: 14px;
  background: var(--bg-elevated);
  border: 2px solid var(--border-soft);
  box-shadow: 0 6px 0 var(--border-soft), 0 8px 12px rgba(0, 0, 0, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  transition: transform 0.12s ease, opacity 0.2s ease;
}

.mahjong-tile.blocked {
  opacity: 0.48;
  filter: grayscale(0.25);
  cursor: not-allowed;
}

.mahjong-tile.selected {
  border-color: var(--accent-amber);
  background: var(--accent-amber-soft);
  transform: translateY(-4px);
}

/* 5. Number Match Grid */
.nummatch-grid {
  display: grid;
  gap: 10px;
  width: 100%;
  max-width: 440px;
}

.nummatch-cell {
  aspect-ratio: 1;
  border-radius: 18px;
  background: var(--bg-subtle);
  border: 3px solid var(--border-soft);
  box-shadow: var(--shadow-btn);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 1.55rem;
  font-weight: 800;
  gap: 2px;
}

.nummatch-cell.selected {
  background: var(--accent-amber-soft);
  border-color: var(--accent-amber);
}

.nummatch-cell.hinted {
  border-color: var(--accent-green);
  background: var(--accent-green-soft);
}

.nummatch-cell.cleared {
  visibility: hidden;
  pointer-events: none;
}

.dots-helper {
  font-size: 0.65rem;
  letter-spacing: 1px;
  color: var(--accent-primary);
  line-height: 1;
}

/* 6. Target Tap & 7. Whack-a-Mole */
.mole-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: 420px;
  width: 100%;
}

.mole-hole {
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--bg-board);
  box-shadow: var(--shadow-inner);
  border: 4px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
}

.mole-hole.active-mole {
  background: var(--accent-amber-soft);
  border-color: var(--accent-amber);
}

/* 8. Schulte Table */
.schulte-grid {
  display: grid;
  gap: 12px;
  width: 100%;
  max-width: 420px;
}

.schulte-cell {
  aspect-ratio: 1;
  border-radius: 20px;
  background: var(--bg-subtle);
  border: 3px solid var(--border-soft);
  box-shadow: var(--shadow-btn);
  font-size: 2rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.schulte-cell.found {
  background: var(--accent-green-soft);
  border-color: var(--accent-green);
  color: var(--accent-green);
  opacity: 0.65;
}

/* 9. Sequence Memory Pads */
.seq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  max-width: 360px;
  width: 100%;
}

.seq-pad {
  aspect-ratio: 1;
  border-radius: 28px;
  border: 4px solid rgba(0, 0, 0, 0.1);
  box-shadow: var(--shadow-card);
  font-size: 2.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.72;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.seq-pad.lit {
  opacity: 1;
  transform: scale(1.05);
  box-shadow: 0 0 24px rgba(255, 255, 255, 0.7);
  border-color: var(--text-main);
}

/* 10. Flags of the World */
.flags-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  width: 100%;
  max-width: 560px;
}

@media (max-width: 480px) {
  .flags-grid {
    grid-template-columns: 1fr;
  }
}

.flag-card {
  padding: 16px;
  border-radius: 22px;
  background: var(--bg-subtle);
  border: 3px solid var(--border-soft);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.flag-svg-wrap {
  width: 100%;
  max-width: 200px;
  aspect-ratio: 3 / 2;
  border-radius: 12px;
  overflow: hidden;
  border: 2px solid var(--border-soft);
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flag-svg-wrap svg {
  width: 100%;
  height: 100%;
  display: block;
}

.speak-big-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: 999px;
  background: var(--accent-primary);
  color: #fff;
  font-size: 1.15rem;
  font-weight: 800;
  box-shadow: 0 4px 0 var(--accent-primary-shadow);
}

/* 11. Color Sudoku */
.sudoku-grid {
  display: grid;
  gap: 6px;
  background: var(--border-strong);
  padding: 10px;
  border-radius: 22px;
  max-width: 400px;
  width: 100%;
}

.sudoku-cell {
  aspect-ratio: 1;
  border-radius: 12px;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  border: 3px solid transparent;
}

.sudoku-cell.fixed {
  opacity: 0.92;
  border-color: rgba(0, 0, 0, 0.08);
}

.sudoku-cell.selected {
  border-color: var(--accent-primary);
  transform: scale(1.04);
}

.sudoku-cell.conflict {
  border-color: var(--accent-coral);
}

.palette-bar {
  display: flex;
  gap: 10px;
  margin-top: 18px;
  flex-wrap: wrap;
  justify-content: center;
}

.palette-swatch {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  border: 3px solid rgba(0, 0, 0, 0.15);
  box-shadow: var(--shadow-btn);
}

/* 15. Tower of Hanoi */
.hanoi-stage {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  width: 100%;
  max-width: 560px;
  height: 230px;
  align-items: end;
  padding: 16px 8px 0;
}

.hanoi-peg {
  height: 100%;
  background: var(--bg-subtle);
  border: 3px solid var(--border-soft);
  border-radius: 20px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  padding-bottom: 14px;
  gap: 4px;
}

.hanoi-peg.selected {
  border-color: var(--accent-amber);
  background: var(--accent-amber-soft);
}

.hanoi-rod {
  position: absolute;
  bottom: 14px;
  width: 10px;
  height: 145px;
  background: var(--border-soft);
  border-radius: 99px;
  z-index: 0;
}

.hanoi-disk {
  height: 28px;
  border-radius: 99px;
  z-index: 1;
  border: 2px solid rgba(0, 0, 0, 0.15);
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.12);
}

/* 13. Pattern Train */
.train-track {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 16px;
  background: var(--bg-board);
  border-radius: 24px;
  margin-bottom: 16px;
}

.train-car {
  width: 68px;
  height: 68px;
  border-radius: 18px;
  background: var(--bg-elevated);
  border: 3px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  position: relative;
}

.train-car.mystery {
  border-style: dashed;
  border-color: var(--accent-primary);
  background: var(--accent-primary-soft);
  font-weight: 800;
  color: var(--accent-primary);
}

/* 17. Pattern Copy Dual Grids */
.copy-dual-wrap {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.pixel-grid {
  display: grid;
  gap: 6px;
  padding: 12px;
  background: var(--bg-board);
  border-radius: 20px;
}

.pixel-cell {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--bg-elevated);
  border: 2px solid var(--border-soft);
}

/* Activity Table */
.activity-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.activity-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-radius: 16px;
  background: var(--bg-subtle);
  font-weight: 700;
}

/* Home Intro / Philosophy Section */
.intro-card {
  background: var(--bg-elevated);
  border: 2px solid var(--border-soft);
  border-radius: 26px;
  padding: 22px 24px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-card);
  line-height: 1.6;
}

.intro-title {
  font-size: 1.2rem;
  font-weight: 800;
  margin: 0 0 10px;
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.intro-text {
  font-size: 0.96rem;
  color: var(--text-main);
  margin: 0 0 10px;
}

.intro-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0;
}

.intro-badge {
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--bg-subtle);
  color: var(--text-main);
  border: 1px solid var(--border-soft);
}

.intro-credits {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--border-soft);
}

.intro-credits a {
  color: var(--accent-primary);
  font-weight: 800;
  text-decoration: underline;
}

/* 18. Melody Memory Xylophone Keys */
.melody-keyboard {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 580px;
  padding: 20px 10px;
  background: var(--bg-board);
  border-radius: 28px;
  box-shadow: var(--shadow-inner);
}

.melody-key {
  flex: 1;
  min-width: 42px;
  max-width: 72px;
  border-radius: 18px;
  border: 3px solid rgba(0, 0, 0, 0.14);
  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.14);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 14px 4px;
  font-weight: 800;
  color: #2F2A38;
  transition: transform 0.14s ease, filter 0.14s ease, box-shadow 0.14s ease;
}

.melody-key .note-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.7);
}

.melody-key .note-name {
  font-size: 0.95rem;
}

.melody-key.active-note {
  transform: translateY(4px) scale(1.05);
  filter: brightness(1.12);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.2), 0 0 22px rgba(255, 255, 255, 0.85);
  border-color: var(--text-main);
}

/* 19. Maze Explorer */
.maze-board {
  display: grid;
  gap: 2px;
  padding: 10px;
  background: var(--border-strong);
  border-radius: 22px;
  box-shadow: var(--shadow-card);
  touch-action: none;
  margin: 0 auto;
}

.maze-cell {
  aspect-ratio: 1;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  transition: background-color 0.12s ease;
}

.maze-cell.wall {
  background: var(--bg-subtle);
  border: 1px solid var(--border-soft);
}

[data-theme="light"] .maze-cell.wall {
  background: #D6CBB9;
}

[data-theme="dark"] .maze-cell.wall {
  background: #333B52;
}

.maze-cell.path {
  background: var(--bg-elevated);
  cursor: pointer;
}

.maze-cell.visited {
  background: var(--accent-primary-soft);
}

.maze-cell.goal-cell {
  background: var(--accent-green-soft);
}

.maze-dpad {
  display: grid;
  grid-template-columns: repeat(3, 58px);
  grid-template-rows: repeat(2, 52px);
  gap: 8px;
  margin-top: 16px;
  justify-content: center;
}

.dpad-btn {
  border-radius: 16px;
  background: var(--bg-subtle);
  border: 2px solid var(--border-soft);
  box-shadow: var(--shadow-btn);
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dpad-btn:active {
  transform: translateY(2px);
  background: var(--accent-primary-soft);
}

.pill-btn.help-audio-btn {
  background: var(--accent-primary-soft);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  padding: 9px 15px;
  font-size: 0.96rem;
}