/* ═══════════════════════════════════════════════════════════════
   BUNNY BRAVE — Global Stylesheet
   Every color, every shadow, every animation serves one purpose:
   making a sick child feel safe, warm, and capable.
═══════════════════════════════════════════════════════════════ */

/* ── Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;900&display=swap');

/* ── CSS Custom Properties ── */
:root {
  --clr-sky:        #b8e4ff;
  --clr-sky-deep:   #5bb8f5;
  --clr-grass:      #6dbf67;
  --clr-grass-dark: #4a9644;
  --clr-sun:        #ffd166;
  --clr-warm:       #fff3cd;
  --clr-warm-deep:  #ffe08a;
  --clr-pink:       #ffb3c6;
  --clr-purple:     #c9b1f7;
  --clr-white:      #ffffff;
  --clr-soft-white: #fafafa;
  --clr-text:       #2d2d2d;
  --clr-text-soft:  #555;
  --clr-hope:       #fff7e0;
  --clr-hope-border:#ffd166;
  --clr-success:    #43d177;
  --clr-danger:     #ff6b6b;

  /* Rainbow platform colors */
  --clr-rb-red:    #ff6b6b;
  --clr-rb-orange: #ffa04d;
  --clr-rb-yellow: #ffd166;
  --clr-rb-green:  #6dbf67;
  --clr-rb-blue:   #5bb8f5;
  --clr-rb-violet: #c9b1f7;

  --font-main: 'Nunito', 'Segoe UI', sans-serif;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-soft: 0 4px 24px rgba(0,0,0,0.10);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.13);

  --transition: 0.25s ease;
  --anim-bounce: bounce 0.5s cubic-bezier(.36,.07,.19,.97);
}

/* ── High contrast override ──
   Pure black-on-white: maximises readability without
   hiding anything. No CSS filter (it breaks fixed overlays). */
body.high-contrast {
  --clr-sky:        #ffffff;
  --clr-sky-deep:   #000000;
  --clr-text:       #000000;
  --clr-text-soft:  #111111;
  --clr-soft-white: #ffffff;
  --clr-warm:       #ffffff;
  --clr-warm-deep:  #eeeeee;
  --clr-hope:       #ffffcc;
  --clr-hope-border:#000000;
}
body.high-contrast * {
  outline: 1px solid rgba(0,0,0,0.25);
}
body.high-contrast .btn-primary {
  background: #000000 !important;
  color: #ffffff !important;
  border: 2px solid #000000 !important;
  box-shadow: none !important;
}
body.high-contrast .btn-secondary {
  background: #ffffff !important;
  color: #000000 !important;
  border: 2.5px solid #000000 !important;
}
body.high-contrast .back-btn,
body.high-contrast .icon-btn {
  color: #000000 !important;
}
body.high-contrast .energy-btn {
  border: 2px solid #000 !important;
}
body.high-contrast .energy-btn.active {
  background: #000 !important;
  color: #fff !important;
}
body.high-contrast .key-btn {
  background: #ffffff !important;
  color: #000000 !important;
  border: 2px solid #000000 !important;
}
body.high-contrast .quiz-question-box {
  background: #fff !important;
  border: 3px solid #000 !important;
  color: #000 !important;
}
body.high-contrast .char-card.unlocked {
  border: 3px solid #000 !important;
  background: #fff !important;
}
body.high-contrast .char-card.locked {
  background: #eeeeee !important;
  border: 2px dashed #000 !important;
}

/* ── Large text override ── */
body.large-text { font-size: 20px; }

/* ── Reduce motion override ── */
@media (prefers-reduced-motion: reduce),
body.reduce-motion * {
  animation-duration: 0.01ms !important;
  transition-duration: 0.01ms !important;
}

/* ═══════════════════════════════════════════════════════════════
   BASE
═══════════════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  font-family: var(--font-main);
  color: var(--clr-text);
  background: var(--clr-sky);
  touch-action: manipulation;
}

/* ═══════════════════════════════════════════════════════════════
   SCREEN SYSTEM
═══════════════════════════════════════════════════════════════ */
.screen {
  position: fixed;
  inset: 0;
  overflow-y: auto;
  display: none;
  flex-direction: column;
  align-items: center;
}
.screen.active { display: flex; }

/* ═══════════════════════════════════════════════════════════════
   BUTTONS
═══════════════════════════════════════════════════════════════ */
.btn-primary {
  background: linear-gradient(135deg, #ffd166, #f4a261);
  color: #2d2d2d;
  border: none;
  border-radius: var(--radius-md);
  padding: 14px 28px;
  font-size: 1.1rem;
  font-weight: 800;
  font-family: var(--font-main);
  cursor: pointer;
  box-shadow: 0 4px 0 #d4850a, var(--shadow-soft);
  transition: transform var(--transition), box-shadow var(--transition);
  user-select: none;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 0 #d4850a, var(--shadow-soft); }
.btn-primary:active { transform: translateY(2px); box-shadow: 0 2px 0 #d4850a; }

.btn-secondary {
  background: var(--clr-white);
  color: var(--clr-text);
  border: 2.5px solid var(--clr-sky-deep);
  border-radius: var(--radius-md);
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-main);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.btn-secondary:hover { background: var(--clr-sky); transform: translateY(-1px); }

.big-btn { width: 100%; max-width: 340px; text-align: center; }

.btn-danger {
  background: transparent;
  color: var(--clr-danger);
  border: 2px solid var(--clr-danger);
  border-radius: var(--radius-md);
  padding: 10px 20px;
  font-family: var(--font-main);
  font-weight: 700;
  cursor: pointer;
  width: 100%;
  margin-top: 16px;
}

.icon-btn {
  background: none; border: none;
  font-size: 1.5rem; cursor: pointer;
  padding: 6px; border-radius: 50%;
  transition: background var(--transition);
}
.icon-btn:hover { background: rgba(0,0,0,0.08); }
.hud-home-btn { margin-left: auto; }

.back-btn {
  background: none; border: none;
  font-size: 1rem; font-weight: 700;
  color: var(--clr-sky-deep);
  cursor: pointer; padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  transition: background var(--transition);
}
.back-btn:hover { background: rgba(91,184,245,0.15); }

/* ═══════════════════════════════════════════════════════════════
   SPLASH SCREEN
═══════════════════════════════════════════════════════════════ */
#screen-splash {
  background: linear-gradient(180deg, #b8e4ff 0%, #e0f4ff 60%, #6dbf67 100%);
  justify-content: center;
}

.splash-bg { position: relative; width: 100%; height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: center; }

.splash-clouds { position: absolute; top: 0; left: 0; width: 100%; height: 40%; pointer-events: none; }
.cloud {
  position: absolute;
  border-radius: 50px;
  background: rgba(255,255,255,0.80);
  height: 40px;
  animation: drift linear infinite;
}
.c1 { width: 120px; top: 12%; left: -140px; animation-duration: 28s; }
.c2 { width: 80px;  top: 28%; left: -100px; animation-duration: 22s; animation-delay: -10s; opacity: 0.7; }
.c3 { width: 150px; top: 8%;  left: -180px; animation-duration: 35s; animation-delay: -5s; opacity: 0.6; }

@keyframes drift {
  from { left: -200px; }
  to   { left: 110%; }
}

.splash-grass {
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(#6dbf67, #4a9644);
  border-radius: 60% 60% 0 0 / 30px 30px 0 0;
}

.splash-center {
  position: relative;
  z-index: 2;
  display: flex; flex-direction: column; align-items: center;
  gap: 18px; padding: 24px;
}

.splash-bunny {
  font-size: 5rem;
  display: block;
  animation: float 3s ease-in-out infinite;
  filter: drop-shadow(0 8px 16px rgba(0,0,0,0.15));
}

@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

/* .game-title — rainbow gradient defined below in HOME section */

.game-subtitle {
  font-size: 1rem;
  color: #555;
  text-align: center;
  max-width: 280px;
  font-weight: 600;
}

.splash-buttons { display: flex; flex-direction: column; align-items: center; gap: 12px; width: 100%; }

.splash-credit {
  font-size: 0.8rem;
  color: #777;
  text-align: center;
  margin-top: 8px;
}

/* ═══════════════════════════════════════════════════════════════
   SETUP SCREEN
═══════════════════════════════════════════════════════════════ */
#screen-setup {
  background: linear-gradient(180deg, #fff3cd 0%, #fffde7 100%);
  padding: 20px;
  justify-content: flex-start;
}

.setup-wrap {
  width: 100%; max-width: 440px;
  margin: 0 auto;
  display: flex; flex-direction: column;
  gap: 14px; padding-top: 24px;
}

.setup-bunny { font-size: 3.5rem; text-align: center; }
/* .setup-title — rainbow gradient defined below */
.setup-sub { font-size: 0.95rem; color: var(--clr-text-soft); text-align: center; }

.field-label {
  font-weight: 700; font-size: 0.95rem;
  color: var(--clr-text);
  display: block; margin-bottom: 4px;
}

.field-input, .field-select {
  width: 100%;
  padding: 12px 16px;
  border: 2.5px solid var(--clr-sky-deep);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-main);
  background: white;
  color: var(--clr-text);
  appearance: none;
  -webkit-appearance: none;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.field-input:focus, .field-select:focus {
  border-color: var(--clr-sun);
  box-shadow: 0 0 0 3px rgba(255,209,102,0.35);
}

.energy-row {
  display: flex; gap: 8px; flex-wrap: wrap; justify-content: center;
}
.energy-btn {
  display: flex; flex-direction: column; align-items: center;
  gap: 4px;
  background: white;
  border: 2.5px solid #ddd;
  border-radius: var(--radius-md);
  padding: 10px 14px;
  cursor: pointer;
  font-size: 1.5rem;
  font-family: var(--font-main);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
  user-select: none;
}
.energy-btn span { font-size: 0.7rem; font-weight: 700; color: #666; }
.energy-btn.active {
  border-color: var(--clr-sun);
  background: var(--clr-warm);
  transform: scale(1.08);
}
.energy-row.small .energy-btn { padding: 8px 10px; font-size: 1.2rem; }

/* ═══════════════════════════════════════════════════════════════
   HOME SCREEN
═══════════════════════════════════════════════════════════════ */
#screen-home {
  background: linear-gradient(180deg, #b8e4ff 0%, #e8f7ff 50%, #f0fff4 100%);
  padding: 0;
}

.home-header {
  width: 100%;
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 18px;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
}

.home-greeting {
  font-size: 1.2rem; font-weight: 900; color: var(--clr-text);
}

.home-character-stage {
  width: 100%;
  display: flex; flex-direction: column; align-items: center;
  padding: 16px;
  gap: 12px;
}

#home-bunny-canvas {
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  box-shadow: var(--shadow-card);
}

.home-bunny-name {
  font-size: 1.3rem; font-weight: 900;
  text-align: center; color: var(--clr-text);
}

.home-stats {
  display: flex; gap: 10px; flex-wrap: wrap; justify-content: center;
}

.stat-chip {
  background: rgba(255,255,255,0.8);
  border: 2px solid rgba(91,184,245,0.3);
  border-radius: 40px;
  padding: 6px 14px;
  font-size: 0.9rem;
  font-weight: 700;
}

/* ── Hope Banner ── */
.hope-banner {
  width: calc(100% - 36px);
  max-width: 480px;
  background: var(--clr-hope);
  border: 2px solid var(--clr-hope-border);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  display: flex; align-items: flex-start; gap: 10px;
  box-shadow: 0 2px 12px rgba(255,209,102,0.25);
  margin: 0 auto;
}

.hope-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.hope-text {
  font-size: 0.95rem; font-weight: 600;
  color: #7a5a00;
  line-height: 1.5;
}

.home-actions {
  width: 100%; max-width: 380px;
  display: flex; flex-direction: column;
  align-items: center; gap: 12px;
  padding: 16px;
}

.streak-area { padding-bottom: 24px; }
.streak-badge {
  background: linear-gradient(135deg, #ffeaa7, #fdcb6e);
  border-radius: 40px;
  padding: 8px 20px;
  font-weight: 800; font-size: 1rem;
  box-shadow: var(--shadow-soft);
}

/* ── Floating stars on home screen ── */
.home-stars {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}
.fstar {
  position: absolute;
  font-size: 1.4rem;
  opacity: 0.55;
  animation: star-float linear infinite;
}
.s1 { left: 8%;  animation-duration: 7s;  animation-delay: 0s;   top: 110%; }
.s2 { left: 25%; animation-duration: 9s;  animation-delay: -3s;  top: 110%; }
.s3 { left: 55%; animation-duration: 11s; animation-delay: -6s;  top: 110%; }
.s4 { left: 75%; animation-duration: 8s;  animation-delay: -1s;  top: 110%; }
.s5 { left: 90%; animation-duration: 10s; animation-delay: -4s;  top: 110%; }
@keyframes star-float {
  from { transform: translateY(0) rotate(0deg);   opacity: 0.6; }
  80%  { opacity: 0.5; }
  to   { transform: translateY(-120vh) rotate(360deg); opacity: 0; }
}

/* ── Coloured stat chips ── */
.chip-stars   { background: linear-gradient(135deg, #fff9c4, #ffe57f); border-color: #ffd166; color: #7a5a00; }
.chip-level   { background: linear-gradient(135deg, #e0f4ff, #b8e4ff); border-color: #5bb8f5; color: #0d4e7a; }
.chip-correct { background: linear-gradient(135deg, #d4f8e8, #a8f0cc); border-color: #43d177; color: #0a5c30; }

/* ── Grade picker ── */
.grade-picker-row {
  display: flex; align-items: center; gap: 10px;
  padding: 4px 0;
}
.grade-picker-label {
  font-size: 0.9rem; font-weight: 700; color: var(--clr-text-soft);
}
.grade-chip-btn {
  background: linear-gradient(135deg, #c9b1f7, #a78bfa);
  color: #fff;
  border: none;
  border-radius: 40px;
  padding: 7px 18px;
  font-size: 0.95rem; font-weight: 800;
  font-family: var(--font-main);
  cursor: pointer;
  box-shadow: 0 3px 0 #7c3aed44;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex; align-items: center; gap: 6px;
}
.grade-chip-btn:hover  { transform: translateY(-2px); }
.grade-chip-btn:active { transform: translateY(1px); }
.grade-chip-arrow { font-size: 0.8rem; }

.grade-picker-panel {
  width: 100%; max-width: 380px;
  background: white;
  border: 2.5px solid #c9b1f7;
  border-radius: var(--radius-lg);
  padding: 14px;
  box-shadow: var(--shadow-card);
  animation: pop-in 0.18s ease;
}
@keyframes pop-in {
  from { transform: scale(0.92); opacity: 0; }
  to   { transform: scale(1);    opacity: 1; }
}
.grade-picker-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 10px;
}
.grade-opt {
  background: linear-gradient(135deg, #f5f3ff, #ede9fe);
  border: 2px solid #c9b1f7;
  border-radius: var(--radius-md);
  padding: 10px 6px;
  font-size: 1rem; font-weight: 800;
  font-family: var(--font-main);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
}
.grade-opt:hover    { background: #ede9fe; transform: scale(1.05); }
.grade-opt.selected { background: linear-gradient(135deg, #7c3aed, #a78bfa); color: white; border-color: #7c3aed; }
.grade-picker-hint  { font-size: 0.75rem; color: var(--clr-text-soft); text-align: center; }

/* ── Glow pulse on Play button ── */
#btn-play {
  background: linear-gradient(135deg, #ffd166, #f4a261);
  animation: play-glow 2.5s ease-in-out infinite;
  font-size: 1.25rem;
}
@keyframes play-glow {
  0%,100% { box-shadow: 0 4px 0 #d4850a, 0 0 0 0 rgba(255,209,102,0); }
  50%      { box-shadow: 0 4px 0 #d4850a, 0 0 18px 6px rgba(255,209,102,0.55); }
}

/* ── Splash screen: rainbow title ── */
.game-title {
  background: linear-gradient(90deg, #ff6b6b, #ffa04d, #ffd166, #6dbf67, #5bb8f5, #c9b1f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 3.2rem; font-weight: 900;
  letter-spacing: -1px; line-height: 1;
}

/* ── Setup screen: more fun card look ── */
#screen-setup {
  background: linear-gradient(180deg, #e0f4ff 0%, #fff9c4 50%, #ffe4f0 100%);
  padding: 20px;
  justify-content: flex-start;
}
.setup-title { 
  font-size: 1.8rem; font-weight: 900; text-align: center;
  background: linear-gradient(90deg, #7c3aed, #f4a261);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

/* ── Quiz screen: coloured subject badges ── */
#quiz-subject-badge {
  border-radius: 40px;
  padding: 3px 12px;
  font-size: 0.8rem; font-weight: 800;
  display: inline-block; margin-bottom: 4px;
}
#quiz-subject-badge[data-subject="math"]    { background: #e0f4ff; color: #0d4e7a; border: 1.5px solid #5bb8f5; }
#quiz-subject-badge[data-subject="science"] { background: #d4f8e8; color: #0a5c30; border: 1.5px solid #43d177; }
#quiz-subject-badge[data-subject="reading"] { background: #ffe4f0; color: #7a003a; border: 1.5px solid #ff6b9d; }

/* ── Choice tiles: rainbow hover ── */
.choice-btn:nth-child(1):hover { background: #ffecec; border-color: #ff6b6b; }
.choice-btn:nth-child(2):hover { background: #fff4e0; border-color: #ffa04d; }
.choice-btn:nth-child(3):hover { background: #e0f4ff; border-color: #5bb8f5; }
.choice-btn:nth-child(4):hover { background: #f5f3ff; border-color: #c9b1f7; }
.choice-btn.correct { background: #d4f8e8 !important; border-color: #43d177 !important; transform: scale(1.04); }
.choice-btn.wrong   { background: #ffe4e4 !important; border-color: #ff6b6b !important; }

/* ══════════════════════════════════════════════════════════════
   GAME / CANVAS SCREEN
═══════════════════════════════════════════════════════════════ */
#screen-game {
  background: #000;
  padding: 0;
  display: none;
  flex-direction: column;
}
#screen-game.active { display: flex; }

.game-hud {
  position: absolute; top: 0; left: 0; right: 0;
  z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 14px;
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(4px);
  color: white;
  font-weight: 800;
}

.hud-level { font-size: 1rem; }
.hud-stars { font-size: 1rem; }

#game-canvas {
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: pixelated;
}

/* Mobile controls */
.mobile-controls {
  position: absolute; bottom: 0; left: 0; right: 0;
  z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 18px 20px;
  background: rgba(0,0,0,0.25);
  backdrop-filter: blur(4px);
}

.ctrl-btn {
  width: 70px; height: 70px;
  background: rgba(255,255,255,0.22);
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 50%;
  color: white;
  font-size: 1.5rem;
  font-weight: 900;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: background var(--transition), transform var(--transition);
}
.ctrl-btn:active { background: rgba(255,255,255,0.45); transform: scale(0.92); }

/* Pause Overlay */
.pause-overlay {
  position: absolute; inset: 0; z-index: 20;
  background: rgba(0,0,0,0.65);
  display: flex; align-items: center; justify-content: center;
}
.pause-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  max-width: 340px; width: 90%;
  text-align: center;
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; align-items: center; gap: 14px;
}
.pause-bunny { font-size: 3rem; }
.pause-card h3 { font-size: 1.4rem; font-weight: 900; }
.pause-card p { font-size: 0.9rem; color: var(--clr-text-soft); line-height: 1.5; }

/* ═══════════════════════════════════════════════════════════════
   TUNNEL SCREEN
═══════════════════════════════════════════════════════════════ */
#screen-tunnel {
  background: #1a0a3d;
  justify-content: center; align-items: center;
}

#tunnel-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
}

.tunnel-text {
  position: relative; z-index: 5;
  text-align: center;
  color: white;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  padding: 24px;
  pointer-events: none;
}
.tunnel-emoji { font-size: 3rem; animation: pulse-glow 1.5s ease-in-out infinite; }
.tunnel-message {
  font-size: 2rem; font-weight: 900;
  text-shadow: 0 0 30px rgba(255,215,0,0.8);
}
.tunnel-sub { font-size: 1.1rem; font-weight: 600; opacity: 0.9; }

@keyframes pulse-glow {
  0%,100% { filter: drop-shadow(0 0 8px rgba(255,215,0,0.5)); transform: scale(1); }
  50%      { filter: drop-shadow(0 0 24px rgba(255,215,0,1));  transform: scale(1.12); }
}

/* ═══════════════════════════════════════════════════════════════
   QUIZ SCREEN (Kid's Original Design)
═══════════════════════════════════════════════════════════════ */
#screen-quiz {
  background: linear-gradient(180deg, #fff9e6 0%, #fffde7 100%);
  padding: 16px;
  justify-content: flex-start;
  align-items: center;
}

.quiz-wrap {
  width: 100%; max-width: 400px;
  display: flex; flex-direction: column;
  align-items: center; gap: 14px;
  padding-top: 8px;
}

.quiz-bunny-row {
  display: flex; align-items: flex-start; gap: 12px;
  width: 100%;
}
.quiz-bunny { font-size: 2.4rem; flex-shrink: 0; }
.quiz-speech {
  background: white;
  border: 2px solid var(--clr-sky-deep);
  border-radius: var(--radius-md);
  border-bottom-left-radius: 4px;
  padding: 10px 14px;
  font-size: 0.95rem; font-weight: 600;
  color: var(--clr-text);
  flex: 1;
  box-shadow: var(--shadow-soft);
}

.quiz-question-box {
  width: 100%;
  background: white;
  border: 2.5px solid var(--clr-sky-deep);
  border-radius: var(--radius-lg);
  padding: 18px;
  text-align: center;
  box-shadow: var(--shadow-card);
  position: relative;
}
.quiz-question {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--clr-text);
  letter-spacing: 2px;
}
/* Reading passage: smaller text so it fits on screen without scrolling */
.quiz-passage {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.55;
  color: #444;
  background: #f8f6ff;
  border-left: 3px solid var(--clr-purple);
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 6px;
  max-height: 110px;
  overflow-y: auto;
  text-align: left;
  letter-spacing: 0;
}
.quiz-subject-badge {
  position: absolute; top: 8px; right: 10px;
  background: var(--clr-sky-deep);
  color: white; font-size: 0.7rem; font-weight: 800;
  padding: 3px 8px; border-radius: 20px;
}

.quiz-answer-display {
  width: 100%;
  min-height: 56px;
  background: white;
  border: 3px solid var(--clr-sun);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; font-weight: 900;
  letter-spacing: 4px;
  color: var(--clr-text);
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.05);
}

/* The Keypad (kid's exact 0–9 phone-style layout) */
.keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  width: 100%;
  max-width: 320px;
}

.key-btn {
  background: white;
  border: 2.5px solid #ddd;
  border-radius: var(--radius-md);
  padding: 16px 0;
  font-size: 1.5rem;
  font-weight: 800;
  font-family: var(--font-main);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
  box-shadow: 0 3px 0 #ccc;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.key-btn:hover { background: var(--clr-warm); border-color: var(--clr-sun); }
.key-btn:active { transform: translateY(2px); box-shadow: 0 1px 0 #ccc; }

.key-zero { grid-column: 1 / 2; }
.key-del  { background: #fff0f0; border-color: #ffb3b3; }
.key-del:hover { background: #ffe0e0; }

/* Kid's original: SEE ANSWER button, below the keypad */
.btn-see-answer {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--clr-success), #2cb55e);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1.2rem;
  font-weight: 900;
  font-family: var(--font-main);
  cursor: pointer;
  box-shadow: 0 4px 0 #1e8c47;
  transition: transform var(--transition), box-shadow var(--transition);
  letter-spacing: 1px;
}
.btn-see-answer:hover { transform: translateY(-2px); box-shadow: 0 6px 0 #1e8c47; }
.btn-see-answer:active { transform: translateY(2px); box-shadow: 0 2px 0 #1e8c47; }

.quiz-feedback {
  width: 100%;
  background: #fff8e1;
  border: 2.5px solid #f59e0b;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 1.05rem; font-weight: 800;
  text-align: center;
  color: #7a5a00;
  animation: feedbackPop 0.4s cubic-bezier(.36,.07,.19,.97);
  box-shadow: 0 3px 12px rgba(245,158,11,0.25);
}
@keyframes feedbackPop {
  0%   { transform: scale(0.85); opacity: 0; }
  60%  { transform: scale(1.06); opacity: 1; }
  100% { transform: scale(1);    opacity: 1; }
}

.btn-hint {
  background: none;
  border: 2px dashed var(--clr-purple);
  border-radius: var(--radius-md);
  color: #6a4fbf;
  font-weight: 700; font-family: var(--font-main);
  padding: 8px 16px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background var(--transition);
}
.btn-hint:hover { background: rgba(201,177,247,0.2); }

/* ═══════════════════════════════════════════════════════════════
   CHARACTERS SCREEN
═══════════════════════════════════════════════════════════════ */
#screen-characters {
  background: linear-gradient(180deg, #f0e6ff 0%, #e6f0ff 100%);
  padding: 0;
}
.screen-header {
  width: 100%; display: flex; align-items: center; gap: 8px;
  padding: 14px 16px;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(0,0,0,0.07);
}
.screen-header h2 { font-size: 1.3rem; font-weight: 900; }

.character-grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
  padding: 16px;
}

.char-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 18px 12px;
  text-align: center;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  border: 2.5px solid transparent;
}
.char-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.char-card.active-char { border-color: var(--clr-sun); }
.char-card.locked { opacity: 0.5; cursor: default; filter: grayscale(0.6); }
.char-card.locked:hover { transform: none; }

.char-card-emoji { font-size: 2.5rem; display: block; margin-bottom: 8px; }
.char-card-name { font-weight: 900; font-size: 1rem; }
.char-card-level { font-size: 0.8rem; color: #888; margin-top: 4px; }
.char-card-power { font-size: 0.75rem; color: var(--clr-sky-deep); margin-top: 4px; font-weight: 700; }

.char-lore-panel {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 50;
  display: flex; align-items: flex-end;
}
.char-lore-close {
  position: absolute; top: 16px; right: 16px;
  font-size: 1.4rem; color: white; cursor: pointer;
}
.char-lore-content {
  background: white;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: 28px 20px;
  width: 100%;
  max-height: 70vh; overflow-y: auto;
}

/* ═══════════════════════════════════════════════════════════════
   UNLOCK SCREEN
═══════════════════════════════════════════════════════════════ */
#screen-unlock {
  background: #0d0025;
  justify-content: center; align-items: center;
}
#unlock-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

.unlock-content {
  position: relative; z-index: 5;
  text-align: center; color: white;
  padding: 28px;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
}
.unlock-char { font-size: 5rem; animation: float 2.5s ease-in-out infinite; }
.unlock-title { font-size: 1.8rem; font-weight: 900; color: var(--clr-sun); text-shadow: 0 0 20px rgba(255,209,102,0.8); }
.unlock-name { font-size: 2.5rem; font-weight: 900; }
.unlock-lore { font-size: 0.95rem; max-width: 320px; line-height: 1.6; opacity: 0.9; }

/* ═══════════════════════════════════════════════════════════════
   PROGRESS SCREEN
═══════════════════════════════════════════════════════════════ */
#screen-progress {
  background: linear-gradient(180deg, #e8f7ff 0%, #f0fff4 100%);
}
.progress-wrap { width: 100%; max-width: 500px; padding: 16px; display: flex; flex-direction: column; gap: 14px; }

.progress-section {
  background: white;
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow-soft);
}
.progress-section h3 { font-weight: 900; font-size: 1.1rem; margin-bottom: 12px; }

.progress-bar-wrap { margin: 6px 0; }
.progress-bar-label { font-size: 0.85rem; font-weight: 700; color: #555; display: flex; justify-content: space-between; margin-bottom: 4px; }
.progress-bar-track {
  width: 100%; height: 12px;
  background: #eee; border-radius: 40px; overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--clr-sky-deep), var(--clr-purple));
  border-radius: 40px;
  transition: width 0.8s ease;
}

.badge-row { display: flex; flex-wrap: wrap; gap: 8px; }
.badge {
  background: var(--clr-warm);
  border: 2px solid var(--clr-sun);
  border-radius: 40px;
  padding: 5px 12px;
  font-size: 0.8rem; font-weight: 700;
}
.badge.locked { opacity: 0.35; filter: grayscale(1); border-color: #ddd; background: #eee; }

/* ═══════════════════════════════════════════════════════════════
   SETTINGS OVERLAY
═══════════════════════════════════════════════════════════════ */
.overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 100;
  display: flex; align-items: flex-end;
}
.overlay-card {
  background: white;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: 24px 20px;
  width: 100%;
  max-height: 80vh; overflow-y: auto;
  display: flex; flex-direction: column; gap: 14px;
}
.overlay-header {
  display: flex; justify-content: space-between; align-items: center;
}
.overlay-header h3 { font-size: 1.2rem; font-weight: 900; }

.toggle-label {
  display: flex; justify-content: space-between; align-items: center;
  font-weight: 700; font-size: 0.95rem; cursor: pointer;
}
.toggle-label input { display: none; }
.toggle-switch {
  width: 52px; height: 28px;
  background: #ddd;
  border-radius: 20px;
  position: relative;
  transition: background var(--transition);
  flex-shrink: 0;
}
.toggle-switch::after {
  content: '';
  position: absolute; top: 4px; left: 4px;
  width: 20px; height: 20px;
  background: white;
  border-radius: 50%;
  transition: transform var(--transition);
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
.toggle-label input:checked + .toggle-switch { background: var(--clr-sky-deep); }
.toggle-label input:checked + .toggle-switch::after { transform: translateX(24px); }

/* ═══════════════════════════════════════════════════════════════
   TOAST
═══════════════════════════════════════════════════════════════ */
.toast {
  position: fixed; bottom: 100px; left: 50%; transform: translateX(-50%);
  background: rgba(45,45,45,0.92);
  color: white;
  padding: 12px 22px;
  border-radius: 40px;
  font-weight: 700; font-size: 0.95rem;
  z-index: 200;
  box-shadow: var(--shadow-card);
  pointer-events: none;
  white-space: nowrap;
  animation: toastIn 0.3s ease;
}
@keyframes toastIn { from { opacity:0; transform: translateX(-50%) translateY(12px); } }
@keyframes fadeIn  { from { opacity:0; } }

/* ═══════════════════════════════════════════════════════════════
   ANIMATIONS
═══════════════════════════════════════════════════════════════ */
.bounce-anim { animation: bouncePop 0.6s cubic-bezier(.36,.07,.19,.97) forwards; }
@keyframes bouncePop {
  0%   { transform: scale(0.6); opacity: 0; }
  60%  { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(1); }
}

.shake { animation: shake 0.4s ease; }
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%      { transform: translateX(-8px); }
  40%      { transform: translateX(8px); }
  60%      { transform: translateX(-5px); }
  80%      { transform: translateX(5px); }
}

.correct-flash { animation: correctFlash 0.5s ease; }
@keyframes correctFlash {
  0%   { background: white; }
  30%  { background: #c8f7c5; }
  100% { background: white; }
}

/* ── Fountain celebration overlay ── */
@keyframes fountain-up {
  0%   { transform: translateY(0)     scale(0.5) rotate(0deg);   opacity: 1; }
  70%  { opacity: 1; }
  100% { transform: translateY(-480px) scale(1.1) rotate(540deg); opacity: 0; }
}
@keyframes celebrate-pop {
  0%   { transform: translate(-50%, -50%) scale(0);   }
  55%  { transform: translate(-50%, -50%) scale(1.35); }
  100% { transform: translate(-50%, -50%) scale(1);   }
}
@keyframes celebrate-fade {
  0%,70% { opacity: 1; }
  100%   { opacity: 0; }
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════════════ */
@media (min-width: 600px) {
  .game-title { font-size: 4rem; }
  .quiz-question { font-size: 3rem; }
  .ctrl-btn { width: 80px; height: 80px; }
}

@media (min-width: 900px) {
  /* Desktop: center content in a phone-like column */
  #screen-splash,
  #screen-setup,
  #screen-home,
  #screen-characters,
  #screen-progress {
    align-items: center;
    background-attachment: fixed;
  }
  #screen-game { max-width: 600px; margin: 0 auto; }
}

/* Scrollbar (WebKit) */\n::-webkit-scrollbar { width: 6px; }\n::-webkit-scrollbar-track { background: transparent; }\n::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.18); border-radius: 3px; }\n\n/* ═══════════════════════════════════════════════════════════════\n   LEVEL ANNOUNCE OVERLAY\n═══════════════════════════════════════════════════════════════ */\n.level-announce {\n  position: absolute;\n  inset: 0;\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  z-index: 50;\n  background: rgba(10,0,30,0.72);\n  animation: la-in 0.4s cubic-bezier(.2,.8,.3,1) both;\n}\n.level-announce.la-fade-out {\n  animation: la-out 0.5s ease forwards;\n}\n@keyframes la-in  { from { opacity:0; transform:scale(0.82); } to { opacity:1; transform:scale(1); } }\n@keyframes la-out { from { opacity:1; transform:scale(1);    } to { opacity:0; transform:scale(1.08); } }\n.la-card {\n  background: linear-gradient(145deg, #12003a 0%, #2d0a7d 100%);\n  border: 3px solid #ffd700;\n  border-radius: 22px;\n  padding: 30px 42px 26px;\n  text-align: center;\n  box-shadow: 0 0 55px rgba(255,215,0,0.45), 0 8px 40px rgba(0,0,0,0.7);\n  min-width: 260px;\n}\n.la-number {\n  font-size: 3rem;\n  font-weight: 900;\n  color: #ffd700;\n  letter-spacing: 4px;\n  text-shadow: 0 0 22px rgba(255,215,0,0.9);\n  font-family: var(--font-main);\n}\n.la-label {\n  font-size: 1.05rem;\n  font-weight: 700;\n  color: #fff;\n  margin-top: 6px;\n  font-family: var(--font-main);\n}\n.la-dots {\n  display: flex;\n  gap: 6px;\n  justify-content: center;\n  margin-top: 14px;\n}\n.la-dot {\n  width: 13px; height: 13px;\n  border-radius: 50%;\n  background: rgba(255,255,255,0.18);\n  border: 1.5px solid rgba(255,255,255,0.35);\n  transition: background 0.2s;\n}\n.la-dot.filled { background: #ffd700; box-shadow: 0 0 7px rgba(255,215,0,0.8); }\n.la-hint {\n  font-size: 0.88rem;\n  color: rgba(255,255,255,0.65);\n  margin-top: 12px;\n  font-family: var(--font-main);\n  animation: la-pulse 0.9s ease infinite;\n}\n@keyframes la-pulse { 0%,100%{opacity:0.6} 50%{opacity:1} }