/* ==========================================================================
   KCUBS — Design Tokens
   ========================================================================== */

:root {
  /* Type scale (fluid) */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.9rem, 0.84rem + 0.3vw, 1rem);
  --text-base: clamp(1.05rem, 1rem + 0.25vw, 1.15rem);
  --text-lg: clamp(1.25rem, 1.1rem + 0.75vw, 1.6rem);
  --text-xl: clamp(1.6rem, 1.3rem + 1.4vw, 2.4rem);
  --text-2xl: clamp(2.1rem, 1.4rem + 3vw, 3.6rem);
  --text-3xl: clamp(2.6rem, 1.2rem + 5vw, 5rem);

  /* Spacing (4px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --radius-sm: 0.5rem;
  --radius-md: 0.9rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --content-narrow: 640px;
  --content-default: 1080px;
  --content-wide: 1280px;

  --font-display: 'Baloo 2', 'Segoe UI', sans-serif;
  --font-body: 'Quicksand', 'Segoe UI', sans-serif;
}

/* KCUBS brand palette — derived from the official logo (blue/Kahlee, pink/Kourtlynn, yellow, green) */
:root,
[data-theme='light'] {
  --color-bg: #fff9ec;
  --color-surface: #ffffff;
  --color-surface-2: #fff3d9;
  --color-surface-offset: #fef0e0;
  --color-divider: #f0e3c8;
  --color-border: #e7d9b8;

  --color-text: #1c2b52;
  --color-text-muted: #55618a;
  --color-text-faint: #93a0c2;
  --color-text-inverse: #fffdf7;

  --color-primary: #1768d1;
  --color-primary-hover: #1256ac;
  --color-primary-active: #0d417f;
  --color-primary-highlight: #dce9fb;

  --color-pink: #ef3f8c;
  --color-pink-hover: #d42d78;
  --color-pink-highlight: #fbdcea;

  --color-yellow: #ffc72c;
  --color-yellow-hover: #f0b312;
  --color-yellow-highlight: #fff2cc;

  --color-green: #3fae49;
  --color-green-hover: #2f8f38;
  --color-green-highlight: #dcf1de;

  --color-navy: #0e1f45;

  --shadow-sm: 0 2px 6px oklch(0.3 0.05 260 / 0.08);
  --shadow-md: 0 8px 20px oklch(0.3 0.05 260 / 0.12);
  --shadow-lg: 0 18px 40px oklch(0.3 0.05 260 / 0.18);
}

[data-theme='dark'] {
  --color-bg: #0e1533;
  --color-surface: #141b3d;
  --color-surface-2: #1a2247;
  --color-surface-offset: #182047;
  --color-divider: #262f57;
  --color-border: #2c3560;

  --color-text: #eef1fb;
  --color-text-muted: #a8b1d8;
  --color-text-faint: #6b74a0;
  --color-text-inverse: #0e1533;

  --color-primary: #5b9bf2;
  --color-primary-hover: #7fb0f5;
  --color-primary-active: #3f7dd6;
  --color-primary-highlight: #223868;

  --color-pink: #ff6fac;
  --color-pink-hover: #ff8cbc;
  --color-pink-highlight: #46243e;

  --color-yellow: #ffd257;
  --color-yellow-hover: #ffdd7c;
  --color-yellow-highlight: #4a3c1a;

  --color-green: #63c96d;
  --color-green-hover: #7ed788;
  --color-green-highlight: #1f3b26;

  --color-navy: #060b1f;

  --shadow-sm: 0 2px 6px oklch(0 0 0 / 0.3);
  --shadow-md: 0 8px 20px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 18px 40px oklch(0 0 0 / 0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0e1533;
    --color-surface: #141b3d;
    --color-surface-2: #1a2247;
    --color-surface-offset: #182047;
    --color-divider: #262f57;
    --color-border: #2c3560;
    --color-text: #eef1fb;
    --color-text-muted: #a8b1d8;
    --color-text-faint: #6b74a0;
    --color-text-inverse: #0e1533;
    --color-primary: #5b9bf2;
    --color-primary-hover: #7fb0f5;
    --color-primary-active: #3f7dd6;
    --color-primary-highlight: #223868;
    --color-pink: #ff6fac;
    --color-pink-hover: #ff8cbc;
    --color-pink-highlight: #46243e;
    --color-yellow: #ffd257;
    --color-yellow-hover: #ffdd7c;
    --color-yellow-highlight: #4a3c1a;
    --color-green: #63c96d;
    --color-green-hover: #7ed788;
    --color-green-highlight: #1f3b26;
    --color-navy: #060b1f;
  }
}

/* ==========================================================================
   Layout helpers
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
}

.text-pink {
  color: var(--color-pink);
}

.eyebrow {
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: var(--text-xs);
  color: var(--color-pink);
  margin-bottom: var(--space-3);
}
.eyebrow--center {
  text-align: center;
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  max-width: 30ch;
}
.section-title--center {
  text-align: center;
  margin-inline: auto;
  max-width: 20ch;
}
.section-lead {
  text-align: center;
  max-width: 56ch;
  margin: 0 auto var(--space-12);
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  white-space: nowrap;
}
.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}
.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn--secondary {
  background: var(--color-yellow);
  color: var(--color-navy);
  box-shadow: var(--shadow-sm);
}
.btn--secondary:hover {
  background: var(--color-yellow-hover);
  transform: translateY(-1px);
}
.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-border);
}
.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ==========================================================================
   Header
   ========================================================================== */

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
  transition:
    transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.header--hidden {
  transform: translateY(-100%);
}
.header--scrolled {
  box-shadow: var(--shadow-sm);
}
.header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding-block: var(--space-3);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}
.brand__logo {
  border-radius: var(--radius-full);
  width: 44px;
  height: 44px;
  object-fit: cover;
}
.brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.nav {
  display: flex;
  gap: var(--space-8);
  margin-inline: auto;
}
.nav a {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.nav a:hover {
  color: var(--color-primary);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  flex-shrink: 0;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6);
  border-top: 1px solid var(--color-divider);
}
.mobile-nav a {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--color-text);
}
.mobile-nav.is-open {
  display: flex;
}

@media (max-width: 860px) {
  .nav,
  .header__actions .btn {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 20%, oklch(from var(--color-yellow) l c h / 0.35), transparent 45%),
    radial-gradient(circle at 85% 15%, oklch(from var(--color-pink) l c h / 0.25), transparent 45%),
    radial-gradient(circle at 50% 100%, oklch(from var(--color-primary) l c h / 0.15), transparent 55%);
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.05;
  margin-bottom: var(--space-5);
}
.hero__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 48ch;
  margin-bottom: var(--space-8);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.hero__tagline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-primary);
}
.hero__art img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }
  .hero__art {
    order: -1;
  }
}

/* ==========================================================================
   Why KCUBS
   ========================================================================== */

.why {
  background: var(--color-surface);
  border-block: 1px solid var(--color-divider);
}
.why .section-title {
  text-align: center;
  margin-inline: auto;
  max-width: 24ch;
}
.why__grid {
  margin-top: var(--space-12);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: left;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-block: var(--space-3) var(--space-2);
}
.feature-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.feature-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
}
.feature-card__icon--green {
  background: var(--color-green-highlight);
  color: var(--color-green);
}
.feature-card__icon--blue {
  background: var(--color-primary-highlight);
  color: var(--color-primary);
}
.feature-card__icon--pink {
  background: var(--color-pink-highlight);
  color: var(--color-pink);
}
.feature-card__icon--yellow {
  background: var(--color-yellow-highlight);
  color: var(--color-yellow-hover);
}

@media (max-width: 980px) {
  .why__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 560px) {
  .why__grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   About / Meet the Cubs
   ========================================================================== */

.character-grid {
  margin-top: var(--space-12);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}
.character-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-sm);
}
.character-card__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.character-card--blue .character-card__media {
  background: var(--color-primary-highlight);
}
.character-card--pink .character-card__media {
  background: var(--color-pink-highlight);
}
.character-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}
.character-card__body {
  padding: var(--space-6) var(--space-8) var(--space-8);
}
.character-card__body h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-1);
}
.character-card__role {
  font-weight: 700;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}
.character-card--blue .character-card__role {
  color: var(--color-primary);
}
.character-card--pink .character-card__role {
  color: var(--color-pink);
}
.character-card__body p:last-child {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.about__note {
  text-align: center;
  margin-top: var(--space-10);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 60ch;
  margin-inline: auto;
}

@media (max-width: 780px) {
  .character-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Learning Room
   ========================================================================== */

.learning {
  background: var(--color-surface-2);
  border-block: 1px solid var(--color-divider);
}

.learning-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin: var(--space-10) 0 var(--space-8);
}
.learning-tab {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  color: var(--color-text-muted);
}
.learning-tab__icon {
  font-size: 1.1em;
}
.learning-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.learning-tab.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.learning-game {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-6), 4vw, var(--space-10));
  box-shadow: var(--shadow-sm);
  max-width: 920px;
  margin-inline: auto;
}
.learning-game__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
}
.learning-game__side {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.learning-game__prompt {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
}
.learning-game__stage {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.learning-game__stage svg {
  width: 130px;
  height: 130px;
}
.learning-game__swatch {
  width: 140px;
  height: 140px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.learning-game__dots {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  max-width: 260px;
}
.learning-game__dots span {
  font-size: 2.1rem;
  line-height: 1;
}
.learning-game__word {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 2.8rem);
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-highlight);
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-lg);
}

.hear-it-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  align-self: center;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  color: var(--color-primary);
}
.hear-it-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-highlight);
}

.learning-game__choices {
  display: grid;
  gap: var(--space-3);
}
.game-choice {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  color: var(--color-text);
  text-align: center;
}
.game-choice:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}
.game-choice:disabled {
  cursor: default;
}
.game-choice.is-correct {
  background: var(--color-green-highlight);
  border-color: var(--color-green);
  color: var(--color-green-hover);
}
.game-choice.is-wrong {
  background: var(--color-pink-highlight);
  border-color: var(--color-pink);
  color: var(--color-pink-hover);
  animation: shake 0.35s ease;
}

.learning-game__feedback {
  min-height: 1.6em;
  font-weight: 700;
  text-align: center;
  color: var(--color-green-hover);
}
.learning-game__feedback.is-wrong {
  color: var(--color-pink-hover);
}
.learning-game__score {
  text-align: center;
  font-weight: 700;
  color: var(--color-text-muted);
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

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

/* ==========================================================================
   Play Room
   ========================================================================== */

.playroom {
  background: var(--color-surface);
  border-block: 1px solid var(--color-divider);
}

.playroom-game {
  max-width: 920px;
  margin-inline: auto;
}
.playroom-hud {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
.playroom-hud__stat {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-surface-2);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
}

.playroom-stage {
  position: relative;
  height: 420px;
  background: linear-gradient(180deg, var(--color-primary-highlight), var(--color-bg));
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-sm);
}

.playroom-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-2);
  padding: var(--space-8);
  background: oklch(from var(--color-bg) l c h / 0.9);
  backdrop-filter: blur(2px);
}
.playroom-overlay__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}
.playroom-overlay__text {
  color: var(--color-text-muted);
  max-width: 40ch;
  font-size: var(--text-sm);
}

.falling-item {
  position: absolute;
  top: -60px;
  font-size: 2.4rem;
  line-height: 1;
  min-width: 48px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  padding: 4px;
  filter: drop-shadow(0 4px 6px oklch(0.2 0.05 260 / 0.2));
  animation-name: fall;
  animation-timing-function: linear;
  animation-fill-mode: forwards;
  will-change: transform;
  touch-action: manipulation;
}
.falling-item:hover {
  transform: scale(1.1);
}
@keyframes fall {
  from { transform: translateY(0); }
  to { transform: translateY(480px); }
}
.falling-item.is-caught {
  animation: none !important;
  pointer-events: none;
  opacity: 0;
  transform: scale(1.6);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.playroom-burst {
  position: absolute;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-green-hover);
  animation: burst 0.7s ease forwards;
  pointer-events: none;
}
@keyframes burst {
  0% { opacity: 1; transform: translateY(0) scale(0.8); }
  100% { opacity: 0; transform: translateY(-40px) scale(1.2); }
}

@media (max-width: 640px) {
  .playroom-stage {
    height: 360px;
  }
}

.playroom-tabs {
  margin-top: var(--space-8);
}

.simon-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
  position: relative;
  padding: var(--space-8) var(--space-4);
  background: linear-gradient(180deg, var(--color-primary-highlight), var(--color-bg));
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-sm);
  min-height: 420px;
  justify-content: center;
}

.simon-board {
  position: relative;
  width: 280px;
  height: 280px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 8px;
  padding: 8px;
  background: var(--color-text);
  border-radius: 50%;
  box-shadow: var(--shadow-md);
}

.simon-pad {
  border: none;
  cursor: pointer;
  opacity: 0.72;
  transition: opacity 0.15s ease, filter 0.1s ease;
  filter: brightness(0.9);
}
.simon-pad:disabled {
  cursor: default;
}
.simon-pad:hover:not(:disabled) {
  opacity: 0.88;
}
.simon-pad.is-lit {
  opacity: 1;
  filter: brightness(1.35);
}
.simon-pad--red {
  background: #e05252;
  border-top-left-radius: 140px;
}
.simon-pad--blue {
  background: var(--color-primary);
  border-top-right-radius: 140px;
}
.simon-pad--yellow {
  background: var(--color-yellow, #ffc72c);
  border-bottom-left-radius: 140px;
}
.simon-pad--green {
  background: var(--color-green, #3fae49);
  border-bottom-right-radius: 140px;
}

.simon-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xs);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  pointer-events: none;
  padding: var(--space-2);
}

.simon-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-2);
  padding: var(--space-8);
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(2px);
  border-radius: var(--radius-xl);
}

@media (max-width: 640px) {
  .simon-board {
    width: 220px;
    height: 220px;
  }
  .simon-center {
    width: 74px;
    height: 74px;
  }
}

/* ==========================================================================
   Songs & Videos
   ========================================================================== */

.videos {
  background: var(--color-surface);
  border-block: 1px solid var(--color-divider);
}
.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}
.video-card {
  background: var(--color-bg);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.video-card__frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--color-navy);
}
.video-card__frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.video-card__body {
  padding: var(--space-5) var(--space-6);
}
.video-card__body h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  margin-bottom: var(--space-1);
}
.video-card__body p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.videos__cta {
  text-align: center;
  margin-top: var(--space-12);
}
.videos__handle {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

@media (max-width: 780px) {
  .video-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Books
   ========================================================================== */

.book-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
  max-width: 760px;
  margin: var(--space-10) auto 0;
}
.book-card {
  background: var(--color-bg);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.book-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.book-card__cover {
  position: relative;
  aspect-ratio: 3 / 4;
  background: var(--color-surface-2);
  overflow: hidden;
}
.book-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.book-card__badge {
  flex-shrink: 0;
  background: var(--color-pink);
  color: var(--color-text-inverse);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}
.book-card__body {
  padding: var(--space-5) var(--space-6);
}
.book-card__heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-1);
}
.book-card__heading h3 {
  margin-bottom: 0;
}
.book-card__body h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  margin-bottom: var(--space-1);
}
.book-card__body p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.book-card__price {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 700;
  margin-top: var(--space-3);
  margin-bottom: var(--space-4);
}
.book-card__cta {
  display: flex;
  width: 100%;
  justify-content: center;
}
.books__note {
  text-align: center;
  margin-top: var(--space-10);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

@media (max-width: 640px) {
  .book-grid {
    grid-template-columns: 1fr;
    max-width: 340px;
  }
}

/* ==========================================================================
   CTA banner
   ========================================================================== */

.cta-banner {
  background: linear-gradient(120deg, var(--color-primary), var(--color-pink));
  color: #fff;
}
.cta-banner__inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
}
.cta-banner h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
}
.cta-banner p {
  max-width: 48ch;
  opacity: 0.92;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background: var(--color-navy);
  color: var(--color-text-inverse);
  padding-block: var(--space-12);
}
[data-theme='light'] .footer,
:root:not([data-theme]) .footer {
  color: #fdf6e3;
}
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}
.footer .brand__name,
.footer__tagline {
  color: inherit;
}
.footer__tagline {
  font-family: var(--font-display);
  font-weight: 600;
}
.footer__links {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
  justify-content: center;
}
.footer__links a {
  color: #cdd7f5;
  font-size: var(--text-sm);
  font-weight: 600;
}
.footer__links a:hover {
  color: var(--color-yellow);
}
.footer__copy {
  font-size: var(--text-xs);
  color: #94a1cf;
}

/* ==========================================================================
   Learning Room additions: shape matching, numeral tiles, sentence builder
   ========================================================================== */

.learning-game__numeral {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 10vw, 4.6rem);
  font-weight: 800;
  color: var(--color-primary);
  background: var(--color-primary-highlight);
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-lg);
  line-height: 1;
}

.learning-game__letter {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 10vw, 4.6rem);
  font-weight: 800;
  color: var(--color-pink);
  background: var(--color-pink-highlight);
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-lg);
  line-height: 1;
}

.game-choice--icon {
  padding: var(--space-3);
  display: flex;
  align-items: center;
  justify-content: center;
}
.game-choice--icon svg {
  width: 56px;
  height: 56px;
}

.game-choice--dots {
  font-size: 1.5rem;
  line-height: 1.3;
  letter-spacing: 2px;
}

.learning-game__emoji-stage {
  font-size: clamp(3.6rem, 12vw, 5.4rem);
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-lg);
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.learning-game__emoji-stage--fruit {
  background: var(--color-green-highlight);
}

.learning-game__letter--word {
  color: var(--color-text);
  background: var(--color-yellow-highlight);
}

.game-choice--word {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3);
  text-align: center;
}
.game-choice__emoji {
  font-size: 2.4rem;
  line-height: 1;
}
.game-choice__label {
  font-size: var(--text-sm);
  font-weight: 700;
}

/* Sentence builder */
.learning-game--sentence {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  align-items: center;
  text-align: center;
}
.sentence-hint {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 48ch;
}
.sentence-target {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  align-items: flex-end;
  min-height: 64px;
}
.sentence-slot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  height: 48px;
  padding-inline: var(--space-3);
  border-bottom: 4px solid var(--color-border);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
}
.sentence-slot--filled {
  border-color: var(--color-primary);
  background: var(--color-primary-highlight);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.sentence-period {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-lg);
  color: var(--color-text);
  align-self: flex-end;
  margin-bottom: 2px;
}
.sentence-bank {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  max-width: 560px;
}
.sentence-tile {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  color: var(--color-text);
}
.sentence-tile:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}
.sentence-tile.is-used {
  opacity: 0.35;
}
.sentence-tile.is-shake {
  animation: shake 0.35s ease;
  border-color: var(--color-pink);
  color: var(--color-pink-hover);
}
.sentence-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

/* ==========================================================================
   Red Light, Green Light
   ========================================================================== */

.rlgl-stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-8) var(--space-4);
  background: linear-gradient(180deg, var(--color-primary-highlight), var(--color-bg));
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-sm);
  min-height: 420px;
  justify-content: center;
  transition: box-shadow 0.2s ease;
}
.rlgl-stage.is-violation {
  box-shadow: inset 0 0 0 4px var(--color-pink);
}

.rlgl-light {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-text);
  border-radius: var(--radius-lg);
}
.rlgl-light__bulb {
  display: block;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  opacity: 0.35;
  transition: opacity 0.15s ease, filter 0.15s ease;
}
.rlgl-light__bulb--red {
  background: #e05252;
}
.rlgl-light__bulb--yellow {
  background: var(--color-yellow, #ffc72c);
}
.rlgl-light__bulb--green {
  background: var(--color-green, #3fae49);
}
.rlgl-light__bulb.is-lit {
  opacity: 1;
  filter: brightness(1.3);
  box-shadow: 0 0 16px currentColor;
}

.rlgl-call {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-lg);
  color: var(--color-text);
  min-height: 1.4em;
}
.rlgl-call.is-green {
  color: var(--color-green-hover);
}
.rlgl-call.is-red {
  color: var(--color-pink-hover);
}

.rlgl-track {
  position: relative;
  width: 100%;
  max-width: 560px;
  height: 64px;
  background: var(--color-surface);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-full);
  overflow: visible;
}
.rlgl-runner {
  position: absolute;
  left: 0%;
  top: 50%;
  transform: translate(-8%, -50%);
  font-size: 2.4rem;
  transition: left 0.35s ease;
}
.rlgl-finish {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.8rem;
}

.rlgl-go-btn {
  min-width: 200px;
}

.rlgl-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-2);
  padding: var(--space-8);
  background: oklch(from var(--color-bg) l c h / 0.9);
  backdrop-filter: blur(2px);
  border-radius: var(--radius-xl);
}

@media (max-width: 640px) {
  .sentence-slot {
    min-width: 52px;
    height: 40px;
    font-size: var(--text-base);
  }
  .rlgl-stage {
    min-height: 380px;
  }
}

/* ==========================================================================
   Memory Match
   ========================================================================== */

.memory-wrap {
  position: relative;
  padding: var(--space-6) var(--space-4);
  background: linear-gradient(180deg, var(--color-primary-highlight), var(--color-bg));
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-sm);
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.memory-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  width: 100%;
  max-width: 480px;
}

.memory-card {
  position: relative;
  aspect-ratio: 1 / 1;
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  touch-action: manipulation;
}

.memory-card__inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.2s ease;
}
.memory-card.is-flipped .memory-card__inner,
.memory-card.is-matched .memory-card__inner {
  transform: scale(1.06);
}

.memory-card__face {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: opacity 0.15s ease;
}
.memory-card__face--back {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  opacity: 1;
}
.memory-card__face--front {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  opacity: 0;
}
.memory-card.is-flipped .memory-card__face--back,
.memory-card.is-matched .memory-card__face--back {
  opacity: 0;
}
.memory-card.is-flipped .memory-card__face--front,
.memory-card.is-matched .memory-card__face--front {
  opacity: 1;
}
.memory-card.is-matched .memory-card__face--front {
  border-color: var(--color-green, #3fae49);
  background: var(--color-primary-highlight);
}
.memory-card:disabled,
.memory-card.is-matched {
  cursor: default;
}

.memory-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-2);
  padding: var(--space-8);
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(2px);
  border-radius: var(--radius-xl);
}

@media (max-width: 640px) {
  .memory-wrap {
    min-height: 380px;
    padding: var(--space-4) var(--space-3);
  }
  .memory-board {
    grid-template-columns: repeat(3, 1fr);
    max-width: 320px;
    gap: var(--space-2);
  }
  .memory-card__face {
    font-size: 1.6rem;
  }
}

/* ==========================================================================
   Pop & Count
   ========================================================================== */

.count-wrap {
  position: relative;
  padding: var(--space-6) var(--space-4);
  background: linear-gradient(180deg, var(--color-primary-highlight), var(--color-bg));
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-sm);
  min-height: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
}

.count-target {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-lg);
  color: var(--color-text);
  text-align: center;
}
.count-target strong {
  color: var(--color-pink);
}

.count-field {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  justify-content: center;
  gap: var(--space-4);
  width: 100%;
  max-width: 560px;
  min-height: 220px;
}

.balloon {
  font-size: 2.8rem;
  line-height: 1;
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  filter: drop-shadow(0 4px 6px oklch(0.2 0.05 260 / 0.2)) hue-rotate(0deg);
  animation: balloon-bob 2.2s ease-in-out infinite;
  touch-action: manipulation;
}
.balloon--pink { filter: drop-shadow(0 4px 6px oklch(0.2 0.05 260 / 0.2)) hue-rotate(330deg); }
.balloon--blue { filter: drop-shadow(0 4px 6px oklch(0.2 0.05 260 / 0.2)) hue-rotate(195deg); }
.balloon--yellow { filter: drop-shadow(0 4px 6px oklch(0.2 0.05 260 / 0.2)) hue-rotate(48deg); }
.balloon--green { filter: drop-shadow(0 4px 6px oklch(0.2 0.05 260 / 0.2)) hue-rotate(120deg); }

@keyframes balloon-bob {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-10px) rotate(2deg); }
}

.balloon:hover:not(:disabled) {
  transform: scale(1.08);
}
.balloon.is-popped {
  animation: none !important;
  pointer-events: none;
  opacity: 0;
  transform: scale(1.5);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.count-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-2);
  padding: var(--space-8);
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(2px);
  border-radius: var(--radius-xl);
}

@media (max-width: 640px) {
  .count-wrap {
    min-height: 380px;
    padding: var(--space-4) var(--space-3);
  }
  .balloon {
    font-size: 2.2rem;
  }
}

/* ==========================================================================
   Story Room
   ========================================================================== */

.story-room {
  background: var(--color-bg);
}

.story-tabs {
  margin-bottom: var(--space-8);
}

.story-reader {
  max-width: 720px;
  margin-inline: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-5), 4vw, var(--space-8));
  box-shadow: var(--shadow-sm);
}

.story-reader__stage {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface-2);
  box-shadow: var(--shadow-sm);
}

.story-reader__image {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--color-surface-2);
}

.story-reader__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: var(--space-5) var(--space-6);
  background: linear-gradient(180deg, oklch(from var(--color-navy) l c h / 0) 0%, oklch(from var(--color-navy) l c h / 0.82) 55%, oklch(from var(--color-navy) l c h / 0.92) 100%);
  color: #fffdf7;
}

.story-reader__label {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ffd257;
  margin: 0 0 var(--space-1);
}

.story-reader__line {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.05rem, 0.9rem + 0.8vw, 1.35rem);
  line-height: 1.35;
  margin: 0;
  text-shadow: 0 1px 6px oklch(0 0 0 / 0.35);
}

.story-reader__footer {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  margin: var(--space-2) 0 0;
  color: #ffe8b0;
}

.story-reader__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.story-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  border: 2px solid var(--color-border);
  color: var(--color-text);
  font-size: 1.4rem;
  line-height: 1;
  transition: border-color var(--transition-interactive), color var(--transition-interactive), background var(--transition-interactive);
}
.story-nav-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-highlight);
}
.story-nav-btn:disabled {
  opacity: 0.4;
  cursor: default;
}

.story-dots {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.story-dot {
  width: 9px;
  height: 9px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: background var(--transition-interactive), transform var(--transition-interactive);
}
.story-dot:hover {
  background: var(--color-primary-hover);
}
.story-dot.is-active {
  background: var(--color-primary);
  transform: scale(1.25);
}

.story-reader__audio {
  display: flex;
  justify-content: center;
  margin-top: var(--space-6);
}

.story-play-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.story-play-btn:disabled {
  opacity: 0.45;
  cursor: default;
}

.story-room__note {
  max-width: 640px;
  margin: var(--space-8) auto 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

@media (max-width: 560px) {
  .story-reader {
    padding: var(--space-5);
  }
  .story-reader__line {
    font-size: 1.05rem;
  }
}