/* ===== Google Font: Baloo 2 (Latin + Devanagari) ===== */
@import url('https://fonts.googleapis.com/css2?family=Baloo+2:wght@400;700;800;900&family=Noto+Sans+Devanagari:wght@400;700;900&display=swap');

/* ===== Global Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --yellow: #FFD700;
  --orange: #FF8C00;
  --green: #4CAF50;
  --blue: #2196F3;
  --pink: #FF69B4;
  --purple: #9C27B0;
  --red: #F44336;
  --bg: #FFFDE7;
  --card-bg: #FFFFFF;
  --shadow: 0 4px 16px rgba(0,0,0,0.12);
  --radius: 20px;
  --font: 'Baloo 2', 'Noto Sans Devanagari', 'Kohinoor Devanagari', 'Nirmala UI', 'Mangal', 'Devanagari Sangam MN', 'Segoe UI', Roboto, sans-serif;
}

html { font-size: 18px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  min-height: 100vh;
  color: #333;
  font-size: 1.1rem;
  line-height: 1.5;
}

/* ===== Typography ===== */
h1 { font-size: clamp(2rem, 6vw, 3.5rem); font-weight: 900; }
h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); font-weight: 800; }
h3 { font-size: clamp(1.2rem, 3vw, 2rem); font-weight: 700; }
p  { font-size: clamp(1rem, 2.5vw, 1.3rem); }

/* ===== Layout ===== */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 16px;
}

/* ===== Homepage Header ===== */
.site-header {
  background: linear-gradient(135deg, #FF8C00, #FFD700);
  padding: 32px 16px 24px;
  text-align: center;
  border-bottom: 4px solid #FF6B00;
}
.site-header h1 { color: #fff; text-shadow: 2px 3px 6px rgba(0,0,0,0.25); }
.site-header p { color: #fff5cc; font-size: 1.15rem; margin-top: 8px; }

.home-emoji { font-size: 3rem; display: block; margin-bottom: 8px; }

/* ===== Age Sections ===== */
.age-section { margin: 32px 0; }
.age-section h2 {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  border-radius: 50px;
  padding: 6px 24px;
  margin-bottom: 20px;
  font-size: 1.3rem;
}
.age-section:nth-child(2) h2 { background: var(--green); }
.age-section:nth-child(3) h2 { background: var(--purple); }

/* ===== Activity Cards Grid ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.activity-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 16px;
  text-align: center;
  text-decoration: none;
  color: #333;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 3px solid transparent;
  cursor: pointer;
  min-height: 180px;
  justify-content: center;
}
.activity-card:hover, .activity-card:focus {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 8px 28px rgba(0,0,0,0.18);
}
.activity-card:active { transform: scale(0.97); }

.card-emoji { font-size: 3.5rem; line-height: 1; }
.card-title { font-size: 1.1rem; font-weight: 800; }
.card-subtitle { font-size: 0.85rem; color: #666; }
.card-stars { font-size: 1.2rem; letter-spacing: 2px; min-height: 24px; }

/* Card color accents */
.card-counting      { border-color: var(--yellow); background: #FFFDE7; }
.card-color         { border-color: var(--pink);   background: #FCE4EC; }
.card-fruits        { border-color: var(--green);  background: #E8F5E9; }
.card-animals       { border-color: var(--orange); background: #FFF3E0; }
.card-shapes        { border-color: var(--blue);   background: #E3F2FD; }
.card-odd           { border-color: var(--purple); background: #F3E5F5; }
.card-pattern       { border-color: var(--red);    background: #FFEBEE; }
.card-math          { border-color: var(--green);  background: #E8F5E9; }
.card-match-columns { border-color: #00BCD4;       background: #E0F7FA; }
.card-memory        { border-color: var(--purple); background: #EDE7F6; }
.card-sorting       { border-color: var(--orange); background: #FFF3E0; }

/* ===== Hear / Speak Button ===== */
.hear-btn {
  background: linear-gradient(135deg, #2196F3, #0D47A1);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 56px;
  height: 56px;
  font-size: 1.6rem;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(33,150,243,0.4);
  transition: transform 0.2s, box-shadow 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 6px auto;
  flex-shrink: 0;
}
.hear-btn:hover  { transform: scale(1.12); box-shadow: 0 6px 20px rgba(33,150,243,0.55); }
.hear-btn:active { transform: scale(0.93); }

/* Voice badge on homepage */
.voice-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.25);
  border-radius: 50px;
  padding: 6px 16px;
  margin-top: 10px;
  font-size: 0.95rem;
  color: #fff;
  font-weight: 700;
}

/* ===== Activity Page Layout ===== */
.activity-header {
  background: linear-gradient(135deg, #FF8C00, #FFD700);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.activity-header h1 {
  font-size: clamp(1.2rem, 4vw, 1.8rem);
  color: #fff;
  text-shadow: 1px 2px 4px rgba(0,0,0,0.2);
  flex: 1;
}
.back-btn {
  background: rgba(255,255,255,0.3);
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 1.4rem;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  color: #fff;
}
.back-btn:hover { background: rgba(255,255,255,0.5); }

.progress-bar-wrap {
  background: rgba(255,255,255,0.3);
  border-radius: 50px;
  height: 10px;
  flex: 1;
  min-width: 60px;
  overflow: hidden;
}
.progress-bar-fill {
  background: #fff;
  height: 100%;
  border-radius: 50px;
  transition: width 0.4s ease;
}

.score-display {
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  white-space: nowrap;
}

/* ===== Question Area ===== */
.question-area {
  text-align: center;
  padding: 24px 16px 16px;
}
.question-text {
  font-size: clamp(1.3rem, 4vw, 2rem);
  font-weight: 800;
  margin-bottom: 12px;
  color: #333;
}
.question-emoji-display {
  font-size: clamp(2.5rem, 8vw, 4rem);
  line-height: 1.4;
  letter-spacing: 4px;
  margin: 16px 0;
  word-break: break-all;
}

/* ===== Answer Buttons ===== */
.choices-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  padding: 16px;
  max-width: 600px;
  margin: 0 auto;
}

.choice-btn {
  min-width: 80px;
  min-height: 80px;
  padding: 12px 20px;
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  font-weight: 900;
  border: 4px solid transparent;
  border-radius: 18px;
  background: #fff;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.15s, box-shadow 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  color: #333;
}
.choice-btn:hover  { transform: scale(1.08); box-shadow: 0 6px 20px rgba(0,0,0,0.18); }
.choice-btn:active { transform: scale(0.95); }
.choice-btn.correct {
  background: #E8F5E9;
  border-color: var(--green);
  color: var(--green);
  animation: pulse-correct 0.5s;
}
.choice-btn.wrong {
  background: #FFEBEE;
  border-color: var(--red);
  color: var(--red);
  animation: shake 0.5s;
}
.choice-btn:disabled { cursor: default; }

/* ===== Feedback Banner ===== */
.feedback-banner {
  text-align: center;
  font-size: clamp(1.2rem, 4vw, 1.8rem);
  font-weight: 800;
  padding: 12px;
  border-radius: 14px;
  margin: 8px 16px;
  display: none;
  opacity: 0;
  transition: opacity 0.3s;
}
.feedback-banner.show {
  display: block;
  opacity: 1;
}
.feedback-banner.correct-fb {
  background: #E8F5E9;
  color: #2E7D32;
}
.feedback-banner.wrong-fb {
  background: #FFEBEE;
  color: #C62828;
}

/* ===== Completion Screen ===== */
.completion-screen {
  display: none;
  text-align: center;
  padding: 40px 16px;
  animation: fadeIn 0.5s;
}
.completion-screen.show { display: block; }
.completion-stars {
  font-size: clamp(3rem, 10vw, 5rem);
  letter-spacing: 8px;
  margin: 16px 0;
}
.completion-title {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 900;
  color: var(--orange);
}
.completion-score { font-size: 1.4rem; margin: 8px 0; color: #555; }
.completion-best  { font-size: 1.1rem; color: #888; margin-bottom: 24px; }

.play-again-btn {
  background: linear-gradient(135deg, var(--orange), var(--yellow));
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 16px 40px;
  font-size: 1.4rem;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(255,140,0,0.4);
  transition: transform 0.2s, box-shadow 0.2s;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
}
.play-again-btn:hover  { transform: scale(1.06); box-shadow: 0 8px 28px rgba(255,140,0,0.5); }
.play-again-btn:active { transform: scale(0.97); }

/* ===== Emoji Grid (for identification games) ===== */
.emoji-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 16px;
  padding: 16px;
  max-width: 640px;
  margin: 0 auto;
}

.emoji-item {
  background: #fff;
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 16px 8px;
  cursor: pointer;
  text-align: center;
  border: 4px solid transparent;
  transition: transform 0.15s, border-color 0.15s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-height: 100px;
}
.emoji-item:hover  { transform: scale(1.08); }
.emoji-item:active { transform: scale(0.95); }
.emoji-item .item-emoji  { font-size: 3rem; line-height: 1; }
.emoji-item .item-label  { font-size: 0.8rem; font-weight: 700; color: #555; }
.emoji-item.correct { border-color: var(--green); background: #E8F5E9; }
.emoji-item.wrong   { border-color: var(--red);   background: #FFEBEE; animation: shake 0.5s; }

/* ===== Shape Matching ===== */
.matching-area {
  display: flex;
  gap: 24px;
  padding: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.matching-column {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}
.shape-item {
  width: 100px;
  height: 100px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 4px solid transparent;
  box-shadow: var(--shadow);
  background: #fff;
  transition: transform 0.15s, border-color 0.15s;
  font-size: 3rem;
}
.shape-item:hover { transform: scale(1.1); }
.shape-item.selected { border-color: var(--blue); background: #E3F2FD; }
.shape-item.matched  { border-color: var(--green); background: #E8F5E9; opacity: 0.6; cursor: default; }
.shape-item.wrong    { border-color: var(--red); background: #FFEBEE; animation: shake 0.4s; }

/* ===== Color by Number ===== */
.color-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  padding: 12px 16px;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border-radius: 50px;
  padding: 6px 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  font-size: 1rem;
  font-weight: 700;
}
.legend-swatch {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid rgba(0,0,0,0.15);
}
.color-palette {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  padding: 12px 16px;
}
.palette-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 4px solid transparent;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.15s, border-color 0.15s;
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}
.palette-btn:hover { transform: scale(1.15); }
.palette-btn.active { border-color: #333; transform: scale(1.2); }
.cbn-svg { max-width: 360px; width: 100%; display: block; margin: 0 auto; cursor: pointer; }
.cbn-svg path, .cbn-svg circle, .cbn-svg rect, .cbn-svg polygon, .cbn-svg ellipse {
  stroke: #333; stroke-width: 2; cursor: pointer;
  transition: fill 0.25s;
}

/* ===== Pattern Game ===== */
.pattern-display {
  font-size: clamp(2rem, 8vw, 3.5rem);
  text-align: center;
  padding: 16px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  max-width: 600px;
  margin: 16px auto;
  letter-spacing: 6px;
  word-break: break-all;
}
.pattern-question { color: var(--blue); font-size: 1.2em; }

/* ===== Math Game ===== */
.math-equation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 8px 16px;
}
.math-group {
  font-size: clamp(2rem, 7vw, 3rem);
  background: #fff;
  border-radius: 14px;
  padding: 10px 16px;
  box-shadow: var(--shadow);
  text-align: center;
  line-height: 1.3;
  word-break: break-all;
}
.math-op {
  font-size: clamp(2rem, 7vw, 3rem);
  font-weight: 900;
  color: var(--orange);
}
.math-eq { font-size: clamp(2rem, 7vw, 3rem); font-weight: 900; color: #666; }
.math-q  { font-size: clamp(2.5rem, 8vw, 4rem); }

/* ===== Animations ===== */
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%      { transform: translateX(-8px); }
  40%      { transform: translateX(8px); }
  60%      { transform: translateX(-6px); }
  80%      { transform: translateX(6px); }
}
@keyframes pulse-correct {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.15); }
  100% { transform: scale(1); }
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes bounce {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}
.bounce { animation: bounce 0.6s ease; }

/* ===== Confetti Canvas ===== */
#confetti-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 9999;
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .emoji-grid  { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .activity-card { padding: 16px 10px; min-height: 150px; }
  .card-emoji { font-size: 2.8rem; }
  .choice-btn { min-width: 68px; min-height: 68px; font-size: 1.6rem; }
  .shape-item { width: 80px; height: 80px; }
}
@media (min-width: 768px) {
  .emoji-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ===== Language Selector ===== */
.language-selector {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  flex-wrap: wrap;
  background: rgba(255,255,255,0.15);
}

.lang-btn {
  padding: 8px 18px;
  border-radius: 20px;
  border: 2px solid #ddd;
  background: white;
  font-size: 1rem;
  cursor: pointer;
  min-height: 44px;
  transition: all 0.2s;
  font-family: var(--font);
  font-weight: 700;
}

.lang-btn[data-lang="en"]        { border-color: #2196F3; }
.lang-btn[data-lang="en"].active  { background: #E3F2FD; border-color: #2196F3; font-weight: 900; }
.lang-btn[data-lang="hi"]        { border-color: #FF9933; }
.lang-btn[data-lang="hi"].active  { background: #FFF3E0; border-color: #FF9933; font-weight: 900; }
.lang-btn[data-lang="gu"]        { border-color: #4CAF50; }
.lang-btn[data-lang="gu"].active  { background: #E8F5E9; border-color: #4CAF50; font-weight: 900; }

.lang-btn:hover  { transform: scale(1.05); }
.lang-btn:active { transform: scale(0.97); }

/* ===== Category Section Headers ===== */
.category-section { margin: 32px 0; }
.category-label {
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: 1px;
  padding: 6px 20px;
  border-radius: 50px;
  color: #fff;
  display: inline-block;
  margin-bottom: 16px;
}
.cat-brain    { background: linear-gradient(135deg, #2196F3, #0D47A1); }
.cat-creative { background: linear-gradient(135deg, #E91E63, #9C27B0); }
.cat-world    { background: linear-gradient(135deg, #4CAF50, #1B5E20); }
.cat-listen   { background: linear-gradient(135deg, #FF8C00, #E65100); }

/* Additional card colors for new activities */
.card-maze         { border-color: #00BCD4; background: #E0F7FA; }
.card-tower        { border-color: #FF8C00; background: #FFF3E0; }
.card-jigsaw       { border-color: #9C27B0; background: #F3E5F5; }
.card-numline      { border-color: #4CAF50; background: #E8F5E9; }
.card-dukaan       { border-color: #FF9800; background: #FFF8E1; }
.card-drawing      { border-color: #E91E63; background: #FCE4EC; }
.card-dressup      { border-color: #9C27B0; background: #EDE7F6; }
.card-music        { border-color: #2196F3; background: #E3F2FD; }
.card-weather      { border-color: #03A9F4; background: #E1F5FE; }
.card-thali        { border-color: #FF5722; background: #FBE9E7; }
.card-soundbingo   { border-color: #8BC34A; background: #F1F8E9; }
.card-whatsmissing { border-color: #FF9800; background: #FFF3E0; }


/* ===== Accessibility: Focus States ===== */
/* High-contrast focus ring for all interactive elements */
:focus-visible {
  outline: 3px solid #1565C0;
  outline-offset: 3px;
  border-radius: 4px;
}

.activity-card:focus-visible {
  outline: 4px solid #1565C0;
  outline-offset: 2px;
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 8px 28px rgba(0,0,0,0.18);
}

.choice-btn:focus-visible {
  outline: 4px solid #1565C0;
  outline-offset: 2px;
  transform: scale(1.08);
}

.lang-btn:focus-visible {
  outline: 3px solid #333;
  outline-offset: 2px;
}

.hear-btn:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 3px;
  box-shadow: 0 0 0 6px rgba(33,150,243,0.5);
}

.back-btn:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
  background: rgba(255,255,255,0.5);
}

.play-again-btn:focus-visible {
  outline: 4px solid #1565C0;
  outline-offset: 3px;
}

.emoji-item:focus-visible {
  outline: 4px solid #1565C0;
  outline-offset: 2px;
  transform: scale(1.08);
}

.shape-item:focus-visible {
  outline: 4px solid #1565C0;
  outline-offset: 2px;
}

.palette-btn:focus-visible {
  outline: 3px solid #333;
  outline-offset: 3px;
}

/* Skip to main content link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: #1565C0;
  color: #fff;
  padding: 12px 24px;
  border-radius: 0 0 8px 8px;
  font-size: 1rem;
  font-weight: 700;
  z-index: 10000;
  text-decoration: none;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

/* Screen reader only utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }

/* ===== New Activity Card Colors ===== */
.card-lettersounds    { border-color: #1E88E5; background: #E3F2FD; }
.card-rhymingsort     { border-color: #AB47BC; background: #F3E5F5; }
.card-patterncomplete { border-color: #E53935; background: #FFEBEE; }
.card-conceptmatch    { border-color: #00897B; background: #E0F2F1; }
.card-shadowmatch     { border-color: #546E7A; background: #ECEFF1; }
.card-tracing         { border-color: #43A047; background: #E8F5E9; }
.card-blockbuilder    { border-color: #F4511E; background: #FBE9E7; }

/* ===== New Category Headers ===== */
.cat-phonics { background: linear-gradient(135deg, #1E88E5, #0D47A1); }
.cat-skills  { background: linear-gradient(135deg, #F4511E, #E65100); }