:root {
  color-scheme: light;
  --bg: #fbf7ef;
  --bg-strong: #fffaf0;
  --ink: #172033;
  --muted: #687086;
  --brand: #6d5dfc;
  --brand-2: #ff8f70;
  --brand-3: #35c7a5;
  --card: rgba(255, 255, 255, 0.78);
  --stroke: rgba(23, 32, 51, 0.1);
  --shadow: 0 24px 70px rgba(65, 56, 125, 0.16);
  --radius-lg: 34px;
  --radius-md: 22px;
  font-family: "Manrope", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #15182a;
  --bg-strong: #20243a;
  --ink: #f8f2ff;
  --muted: #c3bdd4;
  --brand: #9f8cff;
  --brand-2: #ffad83;
  --brand-3: #62e0c5;
  --card: rgba(32, 36, 58, 0.82);
  --stroke: rgba(255, 255, 255, 0.13);
  --shadow: 0 24px 70px rgba(4, 7, 24, 0.42);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 10%, rgba(255, 143, 112, 0.16), transparent 28rem),
    radial-gradient(circle at 88% 4%, rgba(109, 93, 252, 0.14), transparent 32rem),
    linear-gradient(rgba(255, 250, 240, 0.84), rgba(248, 246, 255, 0.82)),
    url("./assets/images/background-desktop.webp") center top / cover fixed no-repeat,
    linear-gradient(135deg, #fff8e8 0%, #f7f4ff 52%, #eefcf7 100%);
  overflow-x: hidden;
}

:root[data-theme="dark"] body {
  background:
    radial-gradient(circle at 12% 10%, rgba(255, 173, 131, 0.13), transparent 28rem),
    radial-gradient(circle at 88% 4%, rgba(159, 140, 255, 0.16), transparent 32rem),
    linear-gradient(rgba(16, 19, 35, 0.84), rgba(23, 26, 45, 0.88)),
    url("./assets/images/background-desktop.webp") center top / cover fixed no-repeat,
    linear-gradient(135deg, #15182a 0%, #211f3a 52%, #14372f 100%);
}

a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }

.orb {
  position: fixed;
  z-index: -1;
  width: 18rem;
  height: 18rem;
  border-radius: 999px;
  filter: blur(18px);
  opacity: 0.42;
  pointer-events: none;
}
.orb-one { left: -7rem; top: 22rem; background: #ffd166; }
.orb-two { right: -6rem; bottom: 4rem; background: #7bdff2; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem clamp(1rem, 4vw, 4rem);
  backdrop-filter: blur(20px);
  background: rgba(255, 250, 240, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.62);
  box-shadow: 0 10px 34px rgba(65, 56, 125, 0.06);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
  justify-content: flex-end;
  padding: 0.24rem;
  border-radius: 999px;
  background: rgba(255,255,255,.48);
  border: 1px solid rgba(255,255,255,.62);
  box-shadow: 0 12px 30px rgba(65,56,125,.08);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  font-size: 1.18rem;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 16px;
  color: white;
  background: linear-gradient(135deg, var(--brand), #9b8cff);
  box-shadow: 0 12px 30px rgba(109, 93, 252, 0.35);
}
nav { display: flex; gap: clamp(0.8rem, 2vw, 1.8rem); color: var(--muted); font-weight: 700; }
nav a:hover { color: var(--ink); }

.section-shell {
  width: min(1140px, calc(100% - 2rem));
  margin: 0 auto;
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.78fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  padding: clamp(3.2rem, 6vw, 5.4rem) 0 1.4rem;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1rem;
  color: var(--brand);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.76rem;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 720px;
  margin-bottom: 1.2rem;
  font-size: clamp(2.6rem, 5.4vw, 4.9rem);
  line-height: 0.94;
  letter-spacing: -0.075em;
}
.hero-title {
  display: grid;
  gap: .06em;
  max-width: 820px;
}
.hero-title-row {
  display: inline-flex;
  align-items: center;
  gap: clamp(.55rem, 1.4vw, 1rem);
  width: max-content;
  max-width: 100%;
}
.title-mascot {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: clamp(5.4rem, 10.5vw, 8.2rem);
  aspect-ratio: 1;
  margin-left: .08em;
  border-radius: 34px;
  transform: rotate(4deg) translateY(.04em);
  filter: drop-shadow(0 18px 26px rgba(65, 56, 125, 0.2));
}
.title-mascot::before {
  content: "";
  position: absolute;
  inset: 15% 8% 4%;
  z-index: -1;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(255, 209, 102, .42), rgba(255, 143, 112, .12) 58%, transparent 70%);
}
.title-mascot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.title-mascot small {
  position: absolute;
  left: 50%;
  bottom: -.2rem;
  transform: translateX(-50%) rotate(-4deg);
  width: max-content;
  max-width: 11rem;
  padding: .34rem .58rem;
  border-radius: 999px;
  color: white;
  background: linear-gradient(135deg, var(--brand-2), #ffbd63);
  box-shadow: 0 10px 24px rgba(255, 143, 112, .24);
  font-size: clamp(.48rem, .82vw, .66rem);
  line-height: 1;
  letter-spacing: 0;
  font-weight: 1000;
}

h2 { margin-bottom: 0; font-size: clamp(2rem, 4vw, 3.5rem); line-height: 0.98; letter-spacing: -0.065em; }
h3 { margin-bottom: 0.45rem; letter-spacing: -0.035em; }
.hero-copy p {
  max-width: 650px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.65;
}
.hero-actions, .quiz-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; align-items: center; justify-content: center; margin-top: 1.25rem; }
.primary-button, .secondary-button, .ghost-button, .theme-toggle {
  border: 0;
  cursor: pointer;
  font-weight: 900;
  border-radius: 999px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.35rem;
  padding: 0 1.55rem;
  color: white;
  background: linear-gradient(135deg, var(--brand), #9f6bff);
  box-shadow: 0 16px 36px rgba(109, 93, 252, 0.34);
}
.secondary-button, .ghost-button, .theme-toggle {
  min-height: 2.75rem;
  padding: 0 1.05rem;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--stroke);
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.42rem;
  min-width: 8.2rem;
  background: linear-gradient(135deg, rgba(109,93,252,.12), rgba(255,143,112,.10));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.55);
}
.primary-button:hover, .secondary-button:hover, .ghost-button:hover, .theme-toggle:hover, .level-card:hover { transform: translateY(-2px); }
#startLevel { min-width: min(100%, 18rem); min-height: 3.8rem; font-size: 1.05rem; }
.danger { color: #b84545; }
.trust-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.4rem; }
.trust-row span, .pill {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.62);
  border: 1px solid rgba(255,255,255,0.7);
  color: var(--muted);
  font-weight: 800;
  font-size: 0.9rem;
}

.hero-card {
  position: relative;
  min-height: 610px;
  perspective: 1200px;
  isolation: isolate;
}
.mascot-card {
  position: absolute;
  z-index: 3;
  right: 0.75rem;
  top: 0.45rem;
  width: min(44%, 205px);
  padding: 0;
  border-radius: 34px;
  background: transparent;
  border: 0;
  filter: drop-shadow(0 24px 34px rgba(65, 56, 125, 0.24));
  transform: rotate(4deg);
}
.mascot-card img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 0;
}
.mascot-badge {
  position: absolute;
  left: 50%;
  bottom: -0.15rem;
  transform: translateX(-50%);
  width: max-content;
  max-width: none;
  white-space: nowrap;
  padding: 0.46rem 0.78rem;
  border-radius: 999px;
  color: white;
  background: linear-gradient(135deg, var(--brand-2), #ffbd63);
  box-shadow: 0 12px 28px rgba(255, 143, 112, 0.28);
  font-size: 0.74rem;
  line-height: 1;
  font-weight: 900;
}
.phone-frame {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  padding: 1.25rem;
  padding-top: 1.45rem;
  border-radius: 46px;
  background:
    radial-gradient(circle at 16% 12%, rgba(255, 209, 102, .36), transparent 8.5rem),
    radial-gradient(circle at 88% 8%, rgba(123, 223, 242, .34), transparent 9rem),
    linear-gradient(160deg, rgba(255,255,255,0.94), rgba(255,255,255,0.66));
  border: 1px solid rgba(255,255,255,0.86);
  box-shadow: 0 28px 80px rgba(65, 56, 125, 0.18);
  transform: rotate(1.4deg);
}
.phone-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.phone-top span:first-child { width: 5.9rem; height: 0.72rem; border-radius: 999px; background: linear-gradient(90deg, #dce0ef, #cdd6fb); }
.phone-top span:last-child { width: 0.82rem; height: 0.82rem; border-radius: 50%; background: var(--brand-3); box-shadow: 0 0 0 .42rem rgba(53,199,165,.13); }
.mini-progress, .progress-track {
  width: 100%;
  height: 0.78rem;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(23,32,51,0.075);
}
.mini-progress span, .progress-track span { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--brand-3), var(--brand)); transition: width .35s ease; }
.sound-bubble {
  display: grid;
  place-items: center;
  text-align: center;
  min-height: 230px;
  margin: 1rem 0 1.05rem;
  border-radius: 36px;
  color: white;
  background:
    radial-gradient(circle at 28% 16%, rgba(255,255,255,0.34), transparent 8.5rem),
    radial-gradient(circle at 80% 82%, rgba(53,199,165,.32), transparent 9rem),
    linear-gradient(145deg, #7563ff, #251c7a);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.22), 0 18px 38px rgba(52,43,146,.24);
}
.wave { display: grid; place-items: center; width: 5.35rem; height: 5.35rem; margin-bottom: .65rem; border-radius: 50%; background: rgba(255,255,255,0.17); box-shadow: inset 0 0 0 1px rgba(255,255,255,.16); font-size: 2.8rem; animation: pulse 1.7s infinite; }
.sound-bubble strong { font-size: clamp(1.55rem, 3vw, 1.95rem); letter-spacing: -.035em; }
.sound-bubble small { opacity: .78; }
.mini-grid, .answers { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.85rem; }
.mini-grid span, .answer-button {
  min-height: 4.05rem;
  padding: .92rem 1rem;
  border-radius: 23px;
  background: rgba(255,255,255,0.82);
  border: 1px solid rgba(23,32,51,0.07);
  box-shadow: 0 10px 24px rgba(65,56,125,.08);
  font-weight: 900;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding: 1.3rem;
  margin-top: 1rem;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.52);
  border: 1px solid rgba(255,255,255,0.8);
  box-shadow: var(--shadow);
}
.stats article { padding: 1rem; border-radius: 24px; background: rgba(255,255,255,0.62); }
.stats strong { display: block; font-size: clamp(1.7rem, 3vw, 2.55rem); letter-spacing: -0.06em; }
.stats span { color: var(--muted); font-weight: 800; }


.listen { padding: clamp(2.4rem, 5vw, 4.2rem) 0 0; }
.section-note { max-width: 620px; margin: .75rem 0 0; color: var(--muted); line-height: 1.55; font-weight: 700; }
.storage-note { margin-top: .75rem; color: var(--muted); font-weight: 800; text-align: center; }
.sound-library { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.sound-tile, .training-sound {
  min-height: 5.2rem;
  border: 1px solid rgba(255,255,255,.82);
  border-radius: 24px;
  background: rgba(255,255,255,.76);
  box-shadow: 0 14px 34px rgba(65, 56, 125, .09);
  cursor: pointer;
  color: var(--ink);
  font: inherit;
  transition: transform .16s ease, box-shadow .16s ease;
}
.sound-tile:hover, .training-sound:hover { transform: translateY(-2px); box-shadow: 0 18px 42px rgba(65,56,125,.13); }
.sound-tile { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: .75rem; padding: .9rem 1rem; text-align: left; }
.sound-tile span { font-size: 2rem; }
.sound-tile strong { display: block; }
.sound-tile small { grid-column: 2; color: var(--muted); font-weight: 800; }
.sound-tile b, .training-sound b { color: var(--brand); }
.training-card {
  margin: 1.2rem 0;
  padding: 1rem;
  border-radius: 28px;
  background: rgba(255,255,255,.68);
  border: 1px solid rgba(255,255,255,.84);
}
.training-card p { margin: .3rem 0 .85rem; color: var(--muted); font-weight: 700; }
.training-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: .7rem; }
.training-sound { min-height: 3.4rem; padding: .7rem .8rem; font-weight: 900; }

.game, .parents { padding: clamp(2.4rem, 5vw, 4.2rem) 0 0; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 1.4rem; }
.level-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 1rem; }
.level-card {
  position: relative;
  min-height: 172px;
  padding: 1.25rem;
  overflow: hidden;
  text-align: left;
  cursor: pointer;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,.8);
  background: var(--card);
  box-shadow: 0 18px 45px rgba(65, 56, 125, 0.1);
  transition: transform .18s ease, border .18s ease, opacity .18s ease;
}
.level-card.active { border-color: rgba(109, 93, 252, 0.55); box-shadow: 0 20px 50px rgba(109, 93, 252, 0.18); }
.level-card.locked { opacity: .58; cursor: not-allowed; }
.level-cover {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
}
.level-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.42) 0%, rgba(255,255,255,0.78) 52%, rgba(255,255,255,0.96) 100%);
}
.level-content, .level-icon, .lock-label { position: relative; z-index: 1; }
.level-content { display: block; margin-top: 2.6rem; }
.level-card.has-cover .level-icon {
  display: inline-grid;
  place-items: center;
  width: 3.1rem;
  height: 3.1rem;
  border-radius: 18px;
  background: rgba(255,255,255,.72);
  box-shadow: 0 10px 25px rgba(65, 56, 125, .12);
}
.level-icon { font-size: 2.2rem; }
.level-card p { margin: .5rem 0 0; color: var(--muted); line-height: 1.45; }
.lock-label { position: absolute; right: 1rem; top: 1rem; padding: .42rem .65rem; border-radius: 999px; font-weight: 900; color: #8b4a25; background: rgba(255,255,255,.78); }

.quiz-card {
  padding: clamp(1.25rem, 3.2vw, 2.3rem);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255,255,255,.86);
  box-shadow: var(--shadow);
}
.quiz-topline { display: flex; justify-content: space-between; align-items: start; gap: 1rem; margin-bottom: 1.2rem; }
.score-badge { flex: 0 0 auto; display: grid; place-items: center; min-width: 5rem; min-height: 5rem; border-radius: 26px; color: white; background: linear-gradient(135deg, var(--brand-2), #ffbc5e); font-size: 1.45rem; font-weight: 900; }
.listen-panel {
  display: grid;
  grid-template-columns: minmax(13rem, auto) 1fr;
  align-items: center;
  gap: 1rem;
  margin: 1.25rem 0;
  padding: 1rem;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(109,93,252,.1), rgba(53,199,165,.12));
}
.listen-panel p { margin: .2rem 0 0; color: var(--muted); }
.play-button {
  display: inline-grid;
  grid-template-columns: auto auto;
  place-items: center;
  gap: .65rem;
  min-width: 12.5rem;
  min-height: 5.2rem;
  padding: 0 1.1rem;
  border: 0;
  border-radius: 999px;
  color: white;
  cursor: pointer;
  background: linear-gradient(135deg, var(--brand), #242079);
  box-shadow: 0 18px 42px rgba(109, 93, 252, .34);
}
.play-button.playing { animation: pulse 1s infinite; }
.play-button span { margin-left: .2rem; font-size: 1.45rem; }
.play-button strong { font-size: .98rem; white-space: nowrap; }

.feedback-card, .result-card {
  margin: 1rem 0;
  padding: 1rem 1.1rem;
  border-radius: 24px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(23,32,51,.08);
  font-weight: 900;
}
.feedback-card.correct { background: rgba(53,199,165,.16); border-color: rgba(53,199,165,.38); }
.feedback-card.wrong { background: rgba(255,143,112,.18); border-color: rgba(255,143,112,.42); }
.result-card {
  text-align: center;
  background: linear-gradient(135deg, rgba(255,255,255,.82), rgba(255,247,224,.82));
}
.result-card h3 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
.result-stars { display: block; margin: .3rem 0 .7rem; font-size: 2rem; letter-spacing: .15em; }

.answer-button { cursor: pointer; text-align: left; color: var(--ink); transition: transform .16s ease, background .16s ease, border .16s ease; }
.answer-button:hover { transform: translateY(-2px); }
.answer-button.correct { background: rgba(53,199,165,.16); border-color: rgba(53,199,165,.45); }
.answer-button.wrong { background: rgba(255,112,112,.16); border-color: rgba(255,112,112,.42); }
.answer-button:disabled { cursor: default; }

.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.feature-grid article {
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.62);
  border: 1px solid rgba(255,255,255,.82);
}
.feature-grid article span { font-size: 2rem; }
.feature-grid p { color: var(--muted); line-height: 1.55; margin-bottom: 0; }
.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  width: min(1140px, calc(100% - 2rem));
  margin: 4rem auto 0;
  padding: 2rem 0;
  color: var(--muted);
  font-weight: 800;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.055); }
}



.listen-more-wrap { display: flex; justify-content: center; margin-top: 1.2rem; }
.listen-more-button { min-width: min(100%, 23rem); font-size: 1.05rem; }
.sounds-page { padding: clamp(2.2rem, 5vw, 4rem) 0 4rem; }
.sounds-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, .42fr);
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 1.4rem;
}
.sounds-hero h1 { font-size: clamp(2.4rem, 5vw, 4.4rem); }
.sounds-hero p { max-width: 650px; color: var(--muted); font-weight: 700; line-height: 1.6; }
.now-playing {
  min-height: 11rem;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.74);
  border: 1px solid rgba(255,255,255,.84);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  text-align: center;
}
.now-playing span { font-size: 3rem; }
.now-playing strong { display: block; font-size: 1.25rem; }
.now-playing small { color: var(--muted); font-weight: 800; }
.sound-browser { display: grid; grid-template-columns: 310px 1fr; gap: 1rem; align-items: start; }
.category-panel, .playlist-panel {
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.7);
  border: 1px solid rgba(255,255,255,.84);
  box-shadow: 0 18px 50px rgba(65,56,125,.11);
}
.category-panel { position: sticky; top: 6.2rem; max-height: calc(100vh - 7.2rem); overflow-y: auto; padding: 1rem; }
.category-panel h2 { font-size: 1.3rem; margin: 0 0 .8rem; }
.category-tabs { display: grid; gap: .65rem; }
.category-tab {
  min-height: 4.2rem;
  border: 1px solid rgba(23,32,51,.08);
  border-radius: 22px;
  background: rgba(255,255,255,.72);
  color: var(--ink);
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: .7rem;
  padding: .75rem .85rem;
  text-align: left;
}
.category-tab span { font-size: 1.7rem; }
.category-tab strong { overflow-wrap: anywhere; }
.category-tab small { color: var(--muted); font-weight: 900; }
.category-tab.active { background: linear-gradient(135deg, rgba(109,93,252,.16), rgba(53,199,165,.13)); border-color: rgba(109,93,252,.32); }
.playlist-panel { padding: clamp(1rem, 2vw, 1.4rem); }
.playlist-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: end; margin-bottom: 1rem; }
.playlist-heading h2 { font-size: clamp(1.8rem, 3vw, 2.7rem); }
.playlist-heading p { max-width: 360px; color: var(--muted); font-weight: 800; line-height: 1.45; }
.playlist { display: grid; gap: .65rem; }
.playlist-row {
  min-height: 4.8rem;
  border: 1px solid rgba(23,32,51,.08);
  border-radius: 24px;
  background: rgba(255,255,255,.78);
  color: var(--ink);
  cursor: pointer;
  display: grid;
  grid-template-columns: 3rem 3.2rem 1fr 3rem;
  align-items: center;
  gap: .5rem;
  padding: .65rem .8rem;
  text-align: left;
  transition: transform .16s ease, background .16s ease;
}
.playlist-row:hover { transform: translateY(-1px); }
.playlist-row.playing { background: linear-gradient(135deg, rgba(109,93,252,.2), rgba(255,143,112,.18)); border-color: rgba(109,93,252,.36); box-shadow: 0 12px 30px rgba(109,93,252,.13); }
.playlist-row.playing .track-action { background: linear-gradient(135deg, var(--brand-2), #ffbd63); }
.track-number { color: var(--muted); font-weight: 900; }
.track-emoji { display: grid; place-items: center; width: 2.8rem; height: 2.8rem; border-radius: 16px; background: rgba(255,255,255,.72); font-size: 1.55rem; }
.track-copy { min-width: 0; }
.track-copy strong, .track-copy small { display: block; overflow-wrap: anywhere; }
.track-copy small { color: var(--muted); font-weight: 800; }
.track-action { display: grid; place-items: center; width: 2.55rem; height: 2.55rem; border-radius: 50%; color: white; background: linear-gradient(135deg, var(--brand), #9f6bff); font-weight: 900; }

.media-image-wrap {
  overflow: hidden;
  width: 3.2rem;
  height: 2.25rem;
  padding: 0;
  border-radius: 12px;
  background: rgba(255,255,255,.92);
  border: 1px solid rgba(23,32,51,.12);
  box-shadow: 0 8px 18px rgba(65,56,125,.1);
}
.media-image-wrap img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
:root[data-theme="dark"] .media-image-wrap {
  background: rgba(255,255,255,.9);
  border-color: rgba(255,255,255,.22);
  box-shadow: 0 10px 20px rgba(0,0,0,.18);
}


@media (max-width: 700px) {
  body {
    background:
      radial-gradient(circle at 12% 10%, rgba(255, 143, 112, 0.13), transparent 20rem),
      radial-gradient(circle at 88% 4%, rgba(109, 93, 252, 0.12), transparent 24rem),
      linear-gradient(rgba(255, 250, 240, 0.86), rgba(248, 246, 255, 0.84)),
      url("./assets/images/background-mobile.webp") center top / cover fixed no-repeat,
      linear-gradient(135deg, #fff8e8 0%, #f7f4ff 52%, #eefcf7 100%);
  }
  :root[data-theme="dark"] body {
    background:
      radial-gradient(circle at 12% 10%, rgba(255, 173, 131, 0.12), transparent 20rem),
      radial-gradient(circle at 88% 4%, rgba(159, 140, 255, 0.14), transparent 24rem),
      linear-gradient(rgba(16, 19, 35, 0.86), rgba(23, 26, 45, 0.9)),
      url("./assets/images/background-mobile.webp") center top / cover fixed no-repeat,
      linear-gradient(135deg, #15182a 0%, #211f3a 52%, #14372f 100%);
  }
}

@media (max-width: 900px) {
  .site-header { align-items: flex-start; flex-wrap: wrap; }
  .header-actions { margin-left: auto; }
  nav { order: 3; width: 100%; overflow-x: auto; padding-bottom: .2rem; }
  .hero { grid-template-columns: 1fr; padding-top: 2.6rem; }
  .hero-card { min-height: auto; }
  .mascot-card { position: relative; right: auto; top: auto; width: min(72%, 270px); margin: 0 auto -0.2rem; }
  .phone-frame { min-height: auto; transform: none; padding-top: 3.8rem; }
  .stats, .level-grid, .feature-grid, .sound-library { grid-template-columns: repeat(2, 1fr); }
  .sounds-hero, .sound-browser { grid-template-columns: 1fr; }
  .category-panel { position: static; max-height: none; overflow: hidden; }
  .category-panel h2 { margin-bottom: .65rem; }
  .category-tabs { display: flex; gap: .65rem; overflow-x: auto; padding-bottom: .25rem; scroll-snap-type: x proximity; }
  .category-tab { min-width: 10.6rem; scroll-snap-align: start; }
  .training-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  h1 { font-size: clamp(2.55rem, 14vw, 3.8rem); }
  .section-heading, .quiz-topline, .site-footer { align-items: stretch; flex-direction: column; }
  .stats, .level-grid, .feature-grid, .mini-grid, .answers, .sound-library, .training-list { grid-template-columns: 1fr; }
  .playlist-heading { flex-direction: column; align-items: stretch; }
  .playlist-row { grid-template-columns: 2.1rem 3rem 1fr 2.7rem; }
  .mascot-card { width: min(82%, 265px); margin-bottom: -0.5rem; }
  .mascot-badge { font-size: 0.68rem; }
  .listen-panel { grid-template-columns: 1fr; text-align: center; }
  .play-button { margin: 0 auto; }
  .play-button { margin: 0 auto; }
}


:root[data-theme="dark"] .orb-one { background: #6d5dfc; opacity: .28; }
:root[data-theme="dark"] .orb-two { background: #35c7a5; opacity: .24; }
:root[data-theme="dark"] .site-header {
  background: rgba(18, 21, 38, 0.74);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}
:root[data-theme="dark"] .secondary-button,
:root[data-theme="dark"] .ghost-button,
:root[data-theme="dark"] .theme-toggle,
:root[data-theme="dark"] .trust-row span,
:root[data-theme="dark"] .pill,
:root[data-theme="dark"] .mini-grid span,
:root[data-theme="dark"] .answer-button,
:root[data-theme="dark"] .sound-tile,
:root[data-theme="dark"] .training-sound,
:root[data-theme="dark"] .category-tab,
:root[data-theme="dark"] .playlist-row,
:root[data-theme="dark"] .track-emoji {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--stroke);
}
:root[data-theme="dark"] .phone-frame,
:root[data-theme="dark"] .stats,
:root[data-theme="dark"] .level-card,
:root[data-theme="dark"] .quiz-card,
:root[data-theme="dark"] .training-card,
:root[data-theme="dark"] .listen-panel,
:root[data-theme="dark"] .feedback-card,
:root[data-theme="dark"] .result-card,
:root[data-theme="dark"] .feature-grid article,
:root[data-theme="dark"] .now-playing,
:root[data-theme="dark"] .category-panel,
:root[data-theme="dark"] .playlist-panel {
  background: var(--card);
  border-color: var(--stroke);
  box-shadow: var(--shadow);
}
:root[data-theme="dark"] .sound-bubble {
  background:
    radial-gradient(circle at 35% 20%, rgba(255,255,255,0.2), transparent 9rem),
    linear-gradient(145deg, #7767ff, #15124e);
}
:root[data-theme="dark"] .mini-progress,
:root[data-theme="dark"] .progress-track { background: rgba(255,255,255,0.12); }
:root[data-theme="dark"] .phone-top span:first-child { background: rgba(255,255,255,0.22); }
:root[data-theme="dark"] .playlist-row.playing,
:root[data-theme="dark"] .category-tab.active {
  background: linear-gradient(135deg, rgba(159,140,255,.24), rgba(98,224,197,.16));
  border-color: rgba(159,140,255,.36);
}


/* Dark theme readability pass */
:root[data-theme="dark"] .level-cover::after {
  background:
    linear-gradient(180deg, rgba(10,12,24,0.18) 0%, rgba(16,19,35,0.72) 48%, rgba(16,19,35,0.96) 100%);
}
:root[data-theme="dark"] .level-content,
:root[data-theme="dark"] .level-content h3,
:root[data-theme="dark"] .level-card p {
  color: var(--ink);
  text-shadow: 0 2px 12px rgba(0,0,0,.35);
}
:root[data-theme="dark"] .level-card p { color: #ddd7ec; }
:root[data-theme="dark"] .level-card.has-cover .level-icon {
  background: rgba(18, 21, 38, .82);
  border: 1px solid rgba(255,255,255,.16);
  box-shadow: 0 12px 28px rgba(0,0,0,.22);
}
:root[data-theme="dark"] .level-card.locked { opacity: .72; }
:root[data-theme="dark"] .lock-label {
  color: #ffe6b8;
  background: rgba(18, 21, 38, .82);
  border: 1px solid rgba(255,255,255,.14);
}
:root[data-theme="dark"] .stats article {
  background: rgba(18, 21, 38, .66);
  border: 1px solid rgba(255,255,255,.12);
}
:root[data-theme="dark"] .stats span,
:root[data-theme="dark"] .sound-tile small,
:root[data-theme="dark"] .training-card p,
:root[data-theme="dark"] .listen-panel p,
:root[data-theme="dark"] .playlist-heading p,
:root[data-theme="dark"] .track-copy small,
:root[data-theme="dark"] .category-tab small,
:root[data-theme="dark"] .now-playing small,
:root[data-theme="dark"] .feature-grid p,
:root[data-theme="dark"] .section-note,
:root[data-theme="dark"] .storage-note,
:root[data-theme="dark"] .sounds-hero p,
:root[data-theme="dark"] .hero-copy p,
:root[data-theme="dark"] nav {
  color: #d8d2e8;
}
:root[data-theme="dark"] .eyebrow,
:root[data-theme="dark"] .sound-tile b,
:root[data-theme="dark"] .training-sound b {
  color: #c7bdff;
}
:root[data-theme="dark"] .danger { color: #ffb4a8; }
:root[data-theme="dark"] .answer-button.correct { background: rgba(98,224,197,.18); border-color: rgba(98,224,197,.48); }
:root[data-theme="dark"] .answer-button.wrong { background: rgba(255,149,149,.18); border-color: rgba(255,149,149,.46); }


/* Stable local flag chips for language rows (emoji flags are unreliable on Windows). */
.flag-badge {
  position: relative;
  overflow: hidden;
  width: 3.15rem;
  height: 2.25rem;
  border-radius: 12px;
  border: 1px solid rgba(23,32,51,.12);
  color: rgba(255,255,255,.92);
  font-size: .7rem !important;
  font-weight: 1000;
  letter-spacing: .04em;
  text-shadow: 0 1px 3px rgba(0,0,0,.45);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.2);
}
.flag-badge::before { content: ""; position: absolute; inset: 0; z-index: 0; }
.flag-badge { z-index: 1; }
.flag-badge::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 0 999px rgba(255,255,255,0); pointer-events: none; }
.flag-sa::before { background: #178a45; }
.flag-az::before { background: linear-gradient(#00a3dd 0 33%, #ef3340 33% 66%, #509e2f 66%); }
.flag-bg::before { background: linear-gradient(#fff 0 33%, #00966e 33% 66%, #d62612 66%); }
.flag-fr::before { background: linear-gradient(90deg, #0055a4 0 33%, #fff 33% 66%, #ef4135 66%); }
.flag-gr::before { background: repeating-linear-gradient(#0d5eaf 0 11%, #fff 11% 22%); }
.flag-ge::before { background: linear-gradient(90deg, transparent 0 42%, #f00 42% 58%, transparent 58%), linear-gradient(transparent 0 42%, #f00 42% 58%, transparent 58%), #fff; }
.flag-it::before { background: linear-gradient(90deg, #009246 0 33%, #fff 33% 66%, #ce2b37 66%); }
.flag-il::before { background: linear-gradient(#fff 0 18%, #0038b8 18% 28%, #fff 28% 72%, #0038b8 72% 82%, #fff 82%); }
.flag-kz::before { background: #00afca; }
.flag-kg::before { background: radial-gradient(circle, #ffd34e 0 18%, transparent 19%), #e8112d; }
.flag-kr::before { background: radial-gradient(circle at 50% 45%, #cd2e3a 0 16%, transparent 17%), radial-gradient(circle at 50% 58%, #0047a0 0 16%, transparent 17%), #fff; }
.flag-de::before { background: linear-gradient(#000 0 33%, #dd0000 33% 66%, #ffce00 66%); }
.flag-ru::before { background: linear-gradient(#fff 0 33%, #0039a6 33% 66%, #d52b1e 66%); }
.flag-se::before { background: linear-gradient(90deg, transparent 0 30%, #fecc00 30% 42%, transparent 42%), linear-gradient(transparent 0 40%, #fecc00 40% 56%, transparent 56%), #006aa7; }
.flag-ua::before { background: linear-gradient(#005bbb 0 50%, #ffd500 50%); }
.flag-uz::before { background: linear-gradient(#1eb7d7 0 31%, #ce1126 31% 35%, #fff 35% 64%, #ce1126 64% 68%, #009b3a 68%); }
.flag-gb::before { background: linear-gradient(90deg, transparent 0 42%, #fff 42% 58%, transparent 58%), linear-gradient(transparent 0 38%, #fff 38% 62%, transparent 62%), linear-gradient(90deg, transparent 0 46%, #c8102e 46% 54%, transparent 54%), linear-gradient(transparent 0 44%, #c8102e 44% 56%, transparent 56%), #012169; }
.flag-es::before { background: linear-gradient(#aa151b 0 25%, #f1bf00 25% 75%, #aa151b 75%); }
.flag-cn::before { background: radial-gradient(circle at 28% 32%, #ffde00 0 11%, transparent 12%), #de2910; }
.flag-tr::before { background: radial-gradient(circle at 42% 50%, #fff 0 18%, transparent 19%), radial-gradient(circle at 48% 50%, #e30a17 0 16%, transparent 17%), #e30a17; }
.flag-bg, .flag-fr, .flag-it, .flag-il, .flag-kr, .flag-ru { color: #172033; text-shadow: 0 1px 2px rgba(255,255,255,.55); }
:root[data-theme="dark"] .flag-badge { border-color: rgba(255,255,255,.2); }


.playlist-row .media-image-wrap {
  width: 3.2rem;
  height: 2.55rem;
}
.playlist-row[data-src*="/movies/"] .media-image-wrap,
.playlist-row[data-src*="/instruments/"] .media-image-wrap {
  height: 3.45rem;
  border-radius: 14px;
}
.playlist-row[data-src*="/movies/"],
.playlist-row[data-src*="/instruments/"] {
  min-height: 5.4rem;
}

.playlist-row[data-src*="/instruments/"] .media-image-wrap {
  background: linear-gradient(135deg, rgba(255,255,255,.96), rgba(248,246,255,.9));
}
.playlist-row[data-src*="/instruments/"] .media-image-wrap img {
  object-fit: contain;
  padding: .18rem;
}
:root[data-theme="dark"] .playlist-row[data-src*="/instruments/"] .media-image-wrap {
  background: linear-gradient(135deg, rgba(255,255,255,.92), rgba(232,230,244,.86));
}


.category-panel,
.category-tabs {
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.category-panel::-webkit-scrollbar,
.category-tabs::-webkit-scrollbar {
  display: none;
}


/* Header polish */
.site-header .ghost-button,
.site-header .theme-toggle {
  box-shadow: none;
}
.theme-toggle[aria-pressed="true"] {
  color: #fff;
  background: linear-gradient(135deg, #27204f, #6d5dfc);
  border-color: rgba(109,93,252,.32);
  box-shadow: 0 10px 24px rgba(109,93,252,.18), inset 0 1px 0 rgba(255,255,255,.16);
}
:root[data-theme="dark"] .header-actions {
  background: rgba(255,255,255,.07);
  border-color: rgba(255,255,255,.12);
  box-shadow: 0 12px 30px rgba(0,0,0,.18);
}
:root[data-theme="dark"] .theme-toggle[aria-pressed="true"] {
  color: #172033;
  background: linear-gradient(135deg, #ffe48a, #ffad83);
  border-color: rgba(255,228,138,.42);
}
@media (max-width: 620px) {
  .header-actions { width: 100%; justify-content: space-between; }
  .site-header .ghost-button,
  .site-header .theme-toggle { flex: 1 1 0; min-width: 0; padding-inline: .8rem; }
}


/* Hero preview card polish */
.phone-frame::before {
  content: "";
  position: absolute;
  inset: .85rem .85rem auto;
  height: 4.35rem;
  border-radius: 34px;
  background:
    linear-gradient(90deg, rgba(109,93,252,.13), rgba(53,199,165,.12)),
    rgba(255,255,255,.46);
  border: 1px solid rgba(255,255,255,.62);
  pointer-events: none;
}
.phone-frame::after {
  content: "♪";
  position: absolute;
  right: 1.45rem;
  top: 1.55rem;
  display: grid;
  place-items: center;
  width: 2.65rem;
  height: 2.65rem;
  border-radius: 18px;
  color: white;
  background: linear-gradient(135deg, var(--brand-3), var(--brand));
  box-shadow: 0 14px 30px rgba(109,93,252,.22);
  font-size: 1.35rem;
  font-weight: 900;
  transform: rotate(8deg);
}
.phone-frame .phone-top,
.phone-frame .mini-progress,
.phone-frame .sound-bubble,
.phone-frame .mini-grid { position: relative; z-index: 1; }

:root[data-theme="dark"] .phone-frame {
  background:
    radial-gradient(circle at 16% 12%, rgba(255, 173, 131, .15), transparent 8.5rem),
    radial-gradient(circle at 88% 8%, rgba(98, 224, 197, .13), transparent 9rem),
    linear-gradient(160deg, rgba(32,36,58,.94), rgba(24,28,48,.78));
}
:root[data-theme="dark"] .phone-frame::before {
  background:
    linear-gradient(90deg, rgba(159,140,255,.16), rgba(98,224,197,.12)),
    rgba(255,255,255,.05);
  border-color: rgba(255,255,255,.11);
}
:root[data-theme="dark"] .phone-frame::after {
  color: #15182a;
  background: linear-gradient(135deg, #ffe48a, #62e0c5);
}


/* Inline hero mascot responsive */
@media (max-width: 900px) {
  .hero-title { max-width: 100%; }
  .phone-frame { padding-top: 1.45rem; }
}
@media (max-width: 620px) {
  .hero-title-row { gap: .45rem; }
  .title-mascot { width: clamp(4.7rem, 24vw, 6.4rem); }
  .title-mascot small { display: none; }
}
:root[data-theme="dark"] .title-mascot::before {
  background: radial-gradient(circle, rgba(159,140,255,.34), rgba(98,224,197,.12) 58%, transparent 70%);
}


/* Unified play controls */
.sound-tile .tile-action,
.training-sound .tile-action,
.sound-tile b,
.training-sound b {
  display: grid;
  place-items: center;
  width: 2.55rem;
  height: 2.55rem;
  margin-left: auto;
  border-radius: 50%;
  color: white;
  background: linear-gradient(135deg, var(--brand), #9f6bff);
  box-shadow: 0 12px 24px rgba(109,93,252,.22);
  font-size: 1rem;
  line-height: 1;
  transition: transform .16s ease, background .16s ease, box-shadow .16s ease;
}
.training-sound {
  display: flex;
  align-items: center;
  gap: .55rem;
  text-align: left;
}
.sound-tile.playing,
.training-sound.playing {
  border-color: rgba(109,93,252,.36);
  background: linear-gradient(135deg, rgba(109,93,252,.18), rgba(255,143,112,.15));
  box-shadow: 0 18px 42px rgba(109,93,252,.14);
}
.sound-tile.playing .tile-action,
.training-sound.playing .tile-action,
.sound-tile.playing b,
.training-sound.playing b {
  background: linear-gradient(135deg, var(--brand-2), #ffbd63);
  box-shadow: 0 12px 26px rgba(255,143,112,.22);
}
.play-button.playing span {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-left: 0;
  border-radius: 50%;
  background: rgba(255,255,255,.17);
}
:root[data-theme="dark"] .sound-tile.playing,
:root[data-theme="dark"] .training-sound.playing {
  background: linear-gradient(135deg, rgba(159,140,255,.24), rgba(255,173,131,.14));
  border-color: rgba(159,140,255,.36);
}