.letters-sounds-shell {
  --letters-ink: #18213a;
  --letters-muted: #63718b;
  --letters-purple: #7048e8;
  --letters-purple-soft: #efe9ff;
  --letters-pink: #f067aa;
  --letters-gold: #ffd35f;
  --letters-green: #30b46f;
  --letters-red: #e4554f;
  --letters-blue: #4c8cff;
  --letters-card: rgba(255, 255, 255, 0.9);
  --letters-line: rgba(101, 113, 145, 0.14);
  --letters-shadow: 0 22px 60px rgba(37, 47, 86, 0.16);
  --letters-soft-shadow: 0 12px 30px rgba(37, 47, 86, 0.1);
  min-height: 100svh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 12% 6%, rgba(240, 103, 170, 0.16), transparent 28%),
    radial-gradient(circle at 86% 8%, rgba(76, 140, 255, 0.16), transparent 26%),
    linear-gradient(180deg, #fbfcff 0%, #f5f7ff 48%, #fff8df 100%);
  color: var(--letters-ink);
}

.letters-sounds-app {
  position: relative;
  max-width: 1120px;
  min-height: 100svh;
  margin: 0 auto;
  padding: clamp(12px, 2.2vw, 24px);
}

.letters-sounds-topbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  margin-bottom: clamp(12px, 2vw, 20px);
}

.letters-sounds-topbar .back,
.letters-sounds-topbar .topbar-title,
.letters-sounds-stats .stat-pill {
  border: 1px solid rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--letters-soft-shadow);
  backdrop-filter: blur(16px);
}

.letters-sounds-topbar .topbar-title {
  justify-self: center;
  min-height: 38px;
  padding: 9px 18px;
  border-radius: 999px;
  color: #27365f;
  font-size: 1rem;
  font-weight: 950;
  line-height: 1;
  text-align: center;
}

.letters-sounds-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  justify-content: flex-end;
}

.letters-sounds-stats .stat-pill {
  min-height: 36px;
  padding: 8px 13px;
  border-radius: 999px;
  color: #33405d;
  font-size: 0.82rem;
  font-weight: 900;
}

.letters-sounds-stage {
  display: grid;
  gap: clamp(10px, 1.8vw, 16px);
  width: min(100%, 820px);
  margin: 0 auto;
  padding-bottom: 30px;
}

.letters-sounds-progress-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.letters-sounds-kicker,
.letters-sounds-journey-status {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 15px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--letters-soft-shadow);
  color: #256a61;
  font-size: 0.9rem;
  font-weight: 950;
  backdrop-filter: blur(14px);
}

.letters-sounds-journey-status {
  gap: 5px;
  color: #6142d6;
}

.letters-sounds-prompt {
  max-width: 680px;
  margin: 0 auto;
  color: var(--letters-ink);
  font-size: clamp(1.5rem, 4vw, 2.35rem);
  font-weight: 950;
  line-height: 1.08;
  text-align: center;
}

.letters-sounds-step-dots {
  display: flex;
  justify-content: center;
  gap: 7px;
  min-height: 12px;
}

.letters-sounds-step-dot {
  width: 32px;
  height: 8px;
  border-radius: 999px;
  background: rgba(112, 72, 232, 0.16);
}

.letters-sounds-step-dot.is-active,
.letters-sounds-step-dot.is-complete {
  background: linear-gradient(90deg, var(--letters-purple), var(--letters-pink));
}

.letters-sounds-card {
  display: grid;
  gap: clamp(16px, 2.6vw, 24px);
  position: relative;
  overflow: hidden;
  min-height: min(620px, calc(100svh - 190px));
  padding: clamp(18px, 3.4vw, 30px);
  border: 1px solid rgba(255, 255, 255, 0.86);
  border-radius: 28px;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.82)),
    radial-gradient(circle at 14% 18%, rgba(112, 72, 232, 0.12), transparent 34%),
    radial-gradient(circle at 88% 80%, rgba(255, 211, 95, 0.22), transparent 34%);
  box-shadow: var(--letters-shadow);
  backdrop-filter: blur(18px);
}

.letters-sounds-stats .stat-pill:not(:last-child) {
  display: none;
}

.letters-sounds-app[data-step="intro"] .letters-sounds-journey-status,
.letters-sounds-app[data-step="intro"] .letters-sounds-step-dots,
.letters-sounds-app[data-step="intro"] .letters-sounds-prompt,
.letters-sounds-app[data-step="journey"] .letters-sounds-journey-status,
.letters-sounds-app[data-step="journey"] .letters-sounds-step-dots,
.letters-sounds-app[data-step="journey"] .letters-sounds-prompt,
.letters-sounds-app[data-step="loading"] .letters-sounds-journey-status,
.letters-sounds-app[data-step="loading"] .letters-sounds-step-dots,
.letters-sounds-app[data-step="loading"] .letters-sounds-prompt {
  display: none;
}

.letters-sounds-card[data-step="journey"] {
  min-height: min(720px, calc(100svh - 130px));
  padding: clamp(14px, 2.4vw, 24px);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(43, 63, 116, 0.2)),
    url("../img/home-path/world-forest-desktop.webp") center / cover no-repeat;
}

.letters-sounds-app[data-step="journey"] .letters-sounds-stats {
  display: none;
}

.letters-sounds-app[data-step="journey"] .letters-sounds-stage {
  width: min(76vw, 1080px);
  max-width: calc(100vw - 32px);
}

.letters-journey {
  display: grid;
  align-content: start;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(12px, 1.8vw, 18px);
  min-height: 100%;
}

.letters-journey-header {
  display: grid;
  justify-items: center;
  gap: 7px;
  justify-self: center;
  width: min(100%, 720px);
  padding: clamp(7px, 1.1vw, 11px) clamp(12px, 1.6vw, 18px);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(16, 33, 64, 0.22), rgba(16, 33, 64, 0.1));
  backdrop-filter: blur(8px);
  text-align: center;
}

.letters-journey-title {
  margin: 0;
  color: #f9fbff;
  font-size: clamp(1.56rem, 2.8vw, 2.32rem);
  font-weight: 950;
  line-height: 1;
  text-shadow: 0 3px 12px rgba(22, 31, 56, 0.42);
}

.letters-journey-subtitle {
  max-width: 480px;
  margin: 0;
  color: rgba(255, 255, 255, 0.94);
  font-size: clamp(0.88rem, 1.35vw, 0.98rem);
  font-weight: 850;
  text-shadow: 0 2px 8px rgba(22, 31, 56, 0.36);
}

.letters-journey-progress {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 42px;
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--letters-soft-shadow);
  color: #33405d;
  font-weight: 950;
  backdrop-filter: blur(16px);
}

.letters-journey-set-tabs {
  display: grid;
  grid-template-columns: repeat(5, minmax(104px, 1fr));
  justify-content: center;
  gap: 8px;
  width: min(100%, 680px);
}

.letters-journey-set-tab {
  display: grid;
  justify-items: center;
  gap: 3px;
  min-height: 66px;
  min-width: 0;
  padding: 9px 10px;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(245, 248, 255, 0.78));
  color: #33405d;
  box-shadow: 0 10px 22px rgba(23, 39, 72, 0.12);
  font: inherit;
  font-weight: 950;
  cursor: pointer;
}

.letters-journey-set-tab.is-active {
  border-color: rgba(255, 211, 95, 0.92);
  background:
    linear-gradient(135deg, rgba(112, 72, 232, 0.96), rgba(76, 140, 255, 0.92));
  color: #fff;
  box-shadow:
    0 14px 30px rgba(37, 70, 160, 0.22),
    0 0 0 4px rgba(255, 211, 95, 0.24);
}

.letters-journey-set-tab.is-completed {
  background:
    linear-gradient(180deg, rgba(232, 255, 241, 0.94), rgba(255, 255, 255, 0.78));
  color: #12663b;
}

.letters-journey-set-tab.is-next:not(.is-active) {
  border-color: rgba(255, 211, 95, 0.86);
}

.letters-set-tab-label {
  min-width: 0;
  font-size: 0.82rem;
  line-height: 1;
}

.letters-set-tab-progress {
  color: inherit;
  font-size: 1rem;
  line-height: 1;
}

.letters-set-tab-state {
  max-width: 100%;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(112, 72, 232, 0.1);
  color: var(--letters-purple);
  font-size: 0.66rem;
  line-height: 1;
  overflow-wrap: anywhere;
}

.letters-journey-set-tab.is-active .letters-set-tab-state {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}

.letters-journey-set-tab.is-completed .letters-set-tab-state {
  background: rgba(48, 180, 111, 0.14);
  color: #12663b;
}

.letters-journey-set {
  color: #16824a;
}

.letters-journey-count {
  color: var(--letters-purple);
}

.letters-journey-rail {
  display: grid;
  grid-template-columns: repeat(6, minmax(92px, 1fr));
  align-items: center;
  gap: clamp(10px, 1.6vw, 18px);
  position: relative;
  width: min(100%, 940px);
  min-height: 280px;
  margin: 0 auto;
  padding: 24px 26px 18px;
}

.letters-journey-rail::before {
  content: "";
  position: absolute;
  left: 6%;
  right: 6%;
  top: 50%;
  height: 10px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.24), rgba(255, 238, 186, 0.46), rgba(255, 255, 255, 0.24));
  box-shadow: 0 5px 14px rgba(77, 55, 31, 0.06);
  transform: translateY(-50%);
}

.letters-journey-card {
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 7px;
  position: relative;
  z-index: 1;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  color: #26324f;
  font: inherit;
}

button.letters-journey-card {
  cursor: pointer;
}

button.letters-journey-card:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.96);
  outline-offset: 7px;
  border-radius: 30px;
}

.letters-journey-card:nth-child(odd) {
  align-self: center;
}

.letters-journey-card:nth-child(even) {
  align-self: center;
  padding-top: 0;
}

.letters-journey-card:nth-child(2),
.letters-journey-card:nth-child(5) {
  transform: translateY(-18px);
}

.letters-journey-card:nth-child(3),
.letters-journey-card:nth-child(6) {
  transform: translateY(18px);
}

.letters-journey-card.is-current {
  transform: translateY(-12px);
}

.letters-journey-card:nth-child(even).is-current {
  transform: translateY(-12px);
}

.letters-journey-card.is-locked,
.letters-journey-card.is-available {
  opacity: 0.54;
}

.letters-journey-marker {
  display: grid;
  grid-template-rows: auto 1fr;
  place-items: center;
  position: relative;
  width: clamp(76px, 8vw, 92px);
  aspect-ratio: 1;
  border: 3px solid rgba(255, 255, 255, 0.86);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 35%, rgba(255, 255, 255, 0.98), rgba(241, 246, 255, 0.92));
  box-shadow:
    0 12px 26px rgba(23, 39, 72, 0.18),
    inset 0 -10px 18px rgba(54, 74, 114, 0.08);
  overflow: visible;
}

.letters-journey-card.is-current .letters-journey-marker {
  width: clamp(118px, 11.5vw, 150px);
  border-color: #46a1ff;
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 255, 255, 0.98), rgba(236, 248, 255, 0.94));
  box-shadow:
    0 0 0 7px rgba(70, 161, 255, 0.17),
    0 18px 38px rgba(34, 86, 160, 0.28);
}

.letters-journey-card.is-completed .letters-journey-marker {
  border-color: rgba(48, 180, 111, 0.95);
}

.letters-journey-card.is-locked .letters-journey-marker,
.letters-journey-card.is-available .letters-journey-marker {
  filter: saturate(0.42);
}

.letters-journey-marker::after {
  content: "";
  display: grid;
  place-items: center;
  position: absolute;
  right: -4px;
  bottom: -4px;
  width: 24px;
  aspect-ratio: 1;
  border: 2px solid #fff;
  border-radius: 50%;
  background: #7b8496;
  color: #fff;
  box-shadow: 0 8px 18px rgba(23, 39, 72, 0.18);
  font-size: 0.9rem;
  font-weight: 950;
}

.letters-journey-card.is-completed .letters-journey-marker::after {
  content: "✓";
  background: var(--letters-green);
}

.letters-journey-card.is-current .letters-journey-marker::after {
  content: "▶";
  background: var(--letters-blue);
  right: 2px;
  bottom: 2px;
  width: 28px;
  font-size: 0.66rem;
}

.letters-journey-card.is-current .letters-journey-marker::before {
  content: "";
  position: absolute;
  inset: -8px;
  border: 2px solid rgba(70, 161, 255, 0.52);
  border-radius: 50%;
}

.letters-journey-card.is-locked .letters-journey-marker::after {
  content: "";
  background:
    linear-gradient(#fff, #fff) center 16px / 9px 7px no-repeat,
    radial-gradient(circle at 50% 36%, transparent 0 6px, #fff 7px 9px, transparent 10px),
    #7b8496;
}

.letters-journey-card.is-available .letters-journey-marker::after {
  content: "";
  background: #8b95a8;
}

.letters-journey-card-status {
  min-height: 24px;
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(112, 72, 232, 0.1);
  color: var(--letters-purple);
  font-size: 0.72rem;
  font-weight: 950;
}

.letters-journey-card.is-completed .letters-journey-card-status {
  background: #e8fff1;
  color: #16824a;
}

.letters-journey-card.is-locked .letters-journey-card-status,
.letters-journey-card.is-available .letters-journey-card-status {
  background: rgba(99, 113, 139, 0.1);
  color: #687387;
}

.letters-journey-grapheme {
  position: relative;
  top: auto;
  left: auto;
  z-index: 2;
  transform: none;
  margin-top: 7px;
  color: var(--letters-purple);
  font-size: clamp(1.42rem, 2.7vw, 2rem);
  font-weight: 950;
  line-height: 0.9;
  text-shadow: 0 2px 0 rgba(85, 51, 197, 0.18);
}

.letters-journey-card.is-current .letters-journey-grapheme {
  top: auto;
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
}

.letters-journey-visual {
  width: 48px;
  margin-top: 2px;
  border-radius: 50%;
  background: transparent;
  box-shadow: none;
  overflow: hidden;
}

.letters-journey-card.is-current .letters-journey-visual {
  width: 78px;
}

.letters-journey-visual .letters-picture-img {
  width: 100%;
  height: 100%;
}

.letters-journey-word {
  min-width: 0;
  max-width: 100%;
  color: #242c48;
  font-size: clamp(0.84rem, 1.4vw, 0.98rem);
  font-weight: 950;
  line-height: 1.05;
  overflow-wrap: anywhere;
  text-align: center;
}

.letters-journey-copy {
  display: grid;
  justify-items: center;
  gap: 3px;
  min-width: 76px;
  max-width: 104px;
  padding: 5px 7px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 18px rgba(23, 39, 72, 0.12);
  backdrop-filter: blur(12px);
}

.letters-journey-card.is-current .letters-journey-copy {
  min-width: 116px;
  max-width: 150px;
  padding: 8px 11px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 14px 30px rgba(23, 39, 72, 0.2);
}

.letters-journey-card.is-locked .letters-journey-copy,
.letters-journey-card.is-available .letters-journey-copy {
  background: rgba(255, 255, 255, 0.68);
  box-shadow: 0 8px 18px rgba(23, 39, 72, 0.1);
}

.letters-journey-start {
  width: min(100%, 320px);
  min-height: 62px;
  justify-self: center;
  font-size: 1rem;
  margin-top: clamp(4px, 1.2vw, 12px);
  box-shadow:
    0 16px 32px rgba(37, 70, 160, 0.26),
    0 0 0 5px rgba(255, 255, 255, 0.62);
}

.letters-journey-start-sound {
  padding-inline-start: 3px;
}

.letters-sounds-card[data-step="intro"] {
  gap: 14px;
  min-height: min(610px, calc(100svh - 145px));
  padding: clamp(14px, 2.8vw, 26px);
}

.letters-sounds-card[data-step="loading"] {
  min-height: min(520px, calc(100svh - 145px));
  place-items: center;
}

.letters-loading {
  display: grid;
  justify-items: center;
  gap: 14px;
  width: min(100%, 360px);
  padding: clamp(24px, 4vw, 38px);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--letters-soft-shadow);
  text-align: center;
}

.letters-loading-spinner {
  width: 52px;
  aspect-ratio: 1;
  border: 6px solid rgba(112, 72, 232, 0.16);
  border-top-color: var(--letters-purple);
  border-radius: 50%;
  animation: lettersLoadingSpin 900ms linear infinite;
}

.letters-loading-title {
  margin: 0;
  color: #26324f;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 950;
}

.letters-loading-text {
  margin: 0;
  color: var(--letters-muted);
  font-weight: 850;
}

@keyframes lettersLoadingSpin {
  to { transform: rotate(360deg); }
}

.letters-intro-lesson {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: stretch;
  gap: clamp(14px, 2.6vw, 24px);
}

.letters-intro-stage {
  display: grid;
  grid-template-rows: auto auto auto;
  place-items: center;
  align-content: center;
  gap: clamp(12px, 2vw, 18px);
  position: relative;
  min-height: 500px;
  overflow: hidden;
  padding: 58px clamp(14px, 2.6vw, 26px) clamp(18px, 2.8vw, 30px);
  border: 1px solid rgba(255, 255, 255, 0.84);
  border-radius: 26px;
  background:
    radial-gradient(circle at 50% 20%, rgba(255, 211, 95, 0.24), transparent 30%),
    radial-gradient(circle at 18% 78%, rgba(112, 72, 232, 0.08), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(249, 250, 255, 0.9));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.92);
}

.letters-intro-count {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  min-width: 54px;
  padding: 8px 13px;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 999px;
  background: rgba(239, 233, 255, 0.96);
  color: var(--letters-purple);
  box-shadow: 0 10px 24px rgba(112, 72, 232, 0.14);
  font-size: 0.9rem;
  font-weight: 950;
  text-align: center;
}

.letters-sounds-card[data-step="intro"] .letters-letter-pair {
  padding: clamp(10px, 1.8vw, 16px) clamp(16px, 2.6vw, 28px);
  border: 1px solid rgba(112, 72, 232, 0.13);
  border-radius: 28px;
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 211, 95, 0.28), transparent 58%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(246, 242, 255, 0.88));
  color: var(--letters-purple);
  box-shadow: 0 18px 38px rgba(112, 72, 232, 0.12);
  font-size: clamp(3.1rem, 7vw, 5.1rem);
  line-height: 0.9;
  white-space: nowrap;
}

.letters-intro-letter-line,
.letters-intro-word-line {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: clamp(8px, 1.6vw, 14px);
  width: 100%;
  max-width: 100%;
}

.letters-picture.letters-picture-hero {
  width: clamp(220px, 28vw, 330px);
  padding: clamp(8px, 1.4vw, 12px);
  border: 1px solid rgba(255, 255, 255, 0.94);
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 249, 255, 0.94));
  box-shadow: 0 18px 42px rgba(37, 47, 86, 0.14);
}

.letters-picture.letters-picture-hero .letters-picture-img {
  width: 100%;
  height: 100%;
  border-radius: 24px;
}

.letters-word-hero {
  align-self: start;
  min-width: 0;
  padding: clamp(10px, 1.8vw, 16px) clamp(16px, 2.6vw, 28px);
  border: 1px solid rgba(112, 72, 232, 0.1);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(247, 249, 255, 0.9));
  box-shadow: 0 18px 38px rgba(37, 47, 86, 0.1);
  font-size: clamp(1.8rem, 4.2vw, 3rem);
  white-space: nowrap;
}

.letters-inline-sound-button {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: clamp(42px, 7vw, 50px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.95);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 12px 26px rgba(37, 47, 86, 0.12);
  cursor: pointer;
  transition: box-shadow 160ms ease, opacity 160ms ease, background 160ms ease;
}

.letters-inline-sound-button:hover {
  box-shadow: 0 14px 30px rgba(37, 47, 86, 0.14);
}

.letters-inline-sound-button .letters-sound-icon {
  width: 25px;
  height: 25px;
}

.letters-sounds-card[data-step="intro"] .letters-intro-actions {
  grid-template-columns: 1fr;
  align-content: center;
  gap: 12px;
}

.letters-sounds-card[data-step="intro"] .letters-sound-button {
  justify-content: flex-start;
  min-height: 68px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.86);
  color: #27365f;
  box-shadow: var(--letters-soft-shadow);
}

.letters-sounds-card[data-step="intro"] .letters-sound-button .letters-sound-icon {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  object-fit: contain;
  padding: 4px;
  border-radius: 10px;
  background: rgba(112, 72, 232, 0.1);
}

.letters-sounds-card[data-step="intro"] .letters-sound-button span:last-child {
  min-width: 0;
  line-height: 1.08;
  overflow-wrap: normal;
}

.letters-sounds-card[data-step="intro"] .letters-primary-action {
  justify-self: center;
  width: min(100%, 320px);
  min-height: 58px;
  border-radius: 18px;
  font-size: 0.98rem;
}

.letters-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.letters-back-to-journey {
  justify-self: start;
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid rgba(112, 72, 232, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  color: #33405d;
  box-shadow: var(--letters-soft-shadow);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 950;
  cursor: pointer;
}

.letters-step-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
}

.letters-step-badge,
.letters-step-sound {
  display: grid;
  place-items: center;
  min-width: 48px;
  min-height: 42px;
  padding: 8px 12px;
  border-radius: 16px;
  background: var(--letters-purple-soft);
  color: var(--letters-purple);
  font-weight: 950;
}

.letters-step-sound {
  display: none;
}

.letters-step-title {
  margin: 0;
  color: #26324f;
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  font-weight: 950;
  text-align: center;
}

.letters-intro-grid,
.letters-match-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  align-items: center;
  gap: clamp(16px, 3vw, 28px);
}

.letters-letter-panel,
.letters-word-panel,
.letters-read-panel {
  display: grid;
  place-items: center;
  gap: 14px;
  min-height: 260px;
  border: 1px solid var(--letters-line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.letters-letter-pair {
  color: var(--letters-purple);
  font-size: clamp(5.8rem, 18vw, 10rem);
  font-weight: 950;
  line-height: 0.8;
  text-shadow: 0 5px 0 #5533c5, 0 16px 28px rgba(112, 72, 232, 0.18);
}

.letters-example-line {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: baseline;
  gap: 7px;
  padding: 9px 15px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: #33405d;
  font-weight: 850;
}

.letters-word {
  color: #242c48;
  font-size: clamp(2.6rem, 10vw, 5rem);
  font-weight: 950;
  line-height: 1;
}

.letters-example-line .letters-word {
  font-size: 1.2rem;
}

.letters-word-highlight {
  color: var(--letters-purple);
}

.letters-intro-actions,
.letters-picture-grid,
.letters-letter-choice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(10px, 2vw, 16px);
}

.letters-sound-button,
.letters-primary-action,
.letters-picture-choice,
.letters-letter-choice {
  border: 0;
  cursor: pointer;
  font: inherit;
  transform: none;
  animation: none;
  transition: none;
}

.letters-sound-button,
.letters-primary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  position: relative;
  min-height: 58px;
  padding: 12px 18px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--letters-purple), var(--letters-pink));
  color: #fff;
  box-shadow: 0 14px 30px rgba(112, 72, 232, 0.24);
  font-weight: 950;
}

.letters-sound-button.is-large {
  justify-self: center;
  width: min(100%, 220px);
  min-height: 74px;
  border-radius: 24px;
  font-size: 0.98rem;
}

.letters-sound-button.is-required-action,
.letters-primary-action.is-required-action,
.letters-inline-sound-button {
  border: 2px solid rgba(255, 211, 95, 0.96);
  box-shadow:
    0 0 0 5px rgba(255, 211, 95, 0.22),
    0 18px 42px rgba(112, 72, 232, 0.28);
}

.letters-sound-button.is-required-action::after,
.letters-primary-action.is-required-action::after {
  content: "";
  position: absolute;
  inset: -7px;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0.72;
  box-shadow:
    0 0 0 3px rgba(255, 211, 95, 0.32),
    0 0 24px rgba(255, 211, 95, 0.5);
  animation: lettersRequiredBreathe 1450ms ease-in-out infinite;
}

#lettersSoundsContinue.is-required-action {
  overflow: visible;
}

#lettersSoundsContinue.is-required-action::before {
  content: "\1F447";
  position: absolute;
  inset-inline-start: 12px;
  top: -30px;
  z-index: 2;
  font-size: 1.72rem;
  line-height: 1;
  pointer-events: none;
  transform-origin: 50% 100%;
  filter: drop-shadow(0 6px 8px rgba(37, 47, 86, 0.18));
  animation: lettersContinueTapHint 980ms ease-in-out infinite;
}

@keyframes lettersContinueTapHint {
  0%, 100% {
    transform: translateY(-3px) scale(1);
  }

  45% {
    transform: translateY(4px) scale(0.92);
  }

  70% {
    transform: translateY(-1px) scale(1.04);
  }
}

@media (prefers-reduced-motion: reduce) {
  #lettersSoundsContinue.is-required-action::before {
    animation: none;
  }
}

@keyframes lettersRequiredBreathe {
  0%, 100% {
    opacity: 0.46;
    box-shadow:
      0 0 0 3px rgba(255, 211, 95, 0.24),
      0 0 16px rgba(255, 211, 95, 0.34);
  }

  50% {
    opacity: 0.95;
    box-shadow:
      0 0 0 6px rgba(255, 211, 95, 0.32),
      0 0 30px rgba(255, 211, 95, 0.62);
  }
}

.letters-sound-icon {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.letters-primary-action {
  justify-self: center;
  min-width: min(100%, 230px);
}

.letters-picture-grid {
  align-items: stretch;
}

.letters-picture-choice,
.letters-letter-choice {
  display: grid;
  place-items: center;
  gap: 12px;
  min-height: 178px;
  padding: 16px 14px;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 42px rgba(37, 47, 86, 0.1);
  color: #26324f;
  font-weight: 950;
}

.letters-picture-word {
  font-size: clamp(1rem, 2.2vw, 1.18rem);
  line-height: 1;
}

.letters-picture-word::first-letter {
  color: var(--letters-purple);
  font-size: 1.18em;
}

.letters-letter-choice {
  min-height: 132px;
  color: #222c48;
  font-size: clamp(2rem, 8vw, 3.8rem);
}

.letters-picture-choice:disabled {
  cursor: default;
  opacity: 0.68;
  filter: saturate(0.78);
}

.letters-picture-grid.is-waiting-for-sound .letters-picture-choice {
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 10px 24px rgba(37, 47, 86, 0.06);
}

.letters-picture-grid:not(.is-waiting-for-sound) .letters-picture-choice:not(:disabled) {
  border-color: rgba(48, 180, 111, 0.36);
  box-shadow: 0 16px 38px rgba(48, 180, 111, 0.14);
}

.letters-sound-button:not(:disabled):hover,
.letters-primary-action:not(:disabled):hover,
.letters-picture-choice:not(:disabled):hover,
.letters-letter-choice:not(:disabled):hover {
  box-shadow: 0 20px 46px rgba(112, 72, 232, 0.2);
}

.letters-picture-choice.is-correct,
.letters-letter-choice.is-correct {
  background: #e8fff1;
  box-shadow: 0 18px 40px rgba(48, 180, 111, 0.2);
}

.letters-picture-choice.is-wrong,
.letters-letter-choice.is-wrong {
  background: #fff0ef;
  box-shadow: 0 18px 40px rgba(228, 85, 79, 0.16);
}

.letters-picture {
  display: grid;
  place-items: center;
  position: relative;
  width: clamp(112px, 13vw, 150px);
  aspect-ratio: 1;
  border-radius: 26px;
  background: linear-gradient(180deg, #fff, #f5f7ff);
  box-shadow: inset 0 -10px 20px rgba(60, 73, 110, 0.06);
}

.letters-picture-img {
  display: block;
  width: 92%;
  height: 92%;
  object-fit: contain;
}

.letters-visual {
  position: relative;
  display: block;
  width: 72px;
  height: 72px;
}

.letters-visual-apple {
  border-radius: 48% 52% 46% 46%;
  background: linear-gradient(145deg, #ff6b56, #d9322e);
  box-shadow: inset -10px -12px 0 rgba(126, 0, 0, 0.14);
}

.letters-visual-apple::before {
  content: "";
  position: absolute;
  top: -16px;
  left: 34px;
  width: 11px;
  height: 24px;
  border-radius: 999px;
  background: #724527;
  transform: rotate(18deg);
}

.letters-visual-apple::after {
  content: "";
  position: absolute;
  top: -12px;
  left: 45px;
  width: 24px;
  height: 15px;
  border-radius: 999px 999px 999px 0;
  background: #48b957;
  transform: rotate(-16deg);
}

.letters-visual-ball {
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 34%, #fff 0 7px, transparent 8px),
    conic-gradient(from 20deg, #4c8cff 0 32%, #ffd35f 33% 62%, #f067aa 63% 82%, #4c8cff 83%);
  box-shadow: inset -10px -12px 0 rgba(0, 0, 0, 0.12);
}

.letters-visual-sun {
  border-radius: 50%;
  background: #ffd35f;
  box-shadow: 0 0 0 10px rgba(255, 211, 95, 0.22), inset -8px -10px 0 rgba(219, 141, 0, 0.12);
}

.letters-visual-cat {
  border-radius: 46% 46% 50% 50%;
  background: #f0b36b;
}

.letters-visual-cat::before,
.letters-visual-cat::after {
  content: "";
  position: absolute;
  top: -8px;
  width: 26px;
  height: 26px;
  background: #f0b36b;
  transform: rotate(45deg);
}

.letters-visual-cat::before {
  left: 5px;
}

.letters-visual-cat::after {
  right: 5px;
}

.letters-trace {
  display: grid;
  place-items: center;
  position: relative;
  justify-self: center;
  width: min(100%, 430px);
  min-height: 360px;
  overflow: hidden;
  border: 2px solid rgba(112, 72, 232, 0.16);
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(247, 249, 255, 0.9)),
    repeating-linear-gradient(0deg, rgba(112, 72, 232, 0.05) 0 1px, transparent 1px 42px),
    repeating-linear-gradient(90deg, rgba(112, 72, 232, 0.05) 0 1px, transparent 1px 42px);
  box-shadow: inset 0 -12px 26px rgba(60, 73, 110, 0.06);
  touch-action: none;
  user-select: none;
}

.letters-trace[data-complete="true"] {
  border-color: rgba(48, 180, 111, 0.48);
  background: #f1fff6;
}

.letters-trace-svg {
  position: absolute;
  inset: 18px 20px 44px;
  pointer-events: none;
}

.letters-trace-guide-path,
.letters-trace-done-path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.letters-trace-guide-path {
  stroke: rgba(112, 72, 232, 0.18);
  stroke-width: 13;
}

.letters-trace-done-path {
  stroke: var(--letters-purple);
  stroke-width: 13;
}

.letters-trace-dot {
  fill: var(--letters-purple);
  stroke: rgba(255, 255, 255, 0.9);
  stroke-width: 2.4;
}

.letters-trace-start-dot {
  fill: var(--letters-pink);
  stroke: rgba(255, 255, 255, 0.95);
  stroke-width: 3;
  filter: drop-shadow(0 0 5px rgba(240, 103, 170, 0.8));
}

.letters-trace-target-dot {
  fill: var(--letters-gold);
  stroke: var(--letters-purple);
  stroke-width: 2.4;
  filter: drop-shadow(0 0 5px rgba(255, 211, 95, 0.8));
}

.letters-trace-helper {
  pointer-events: none;
  opacity: 0.92;
  filter: drop-shadow(0 4px 8px rgba(37, 47, 86, 0.16));
  transform-box: fill-box;
  transform-origin: center;
}

.letters-trace-helper.is-hidden {
  opacity: 0;
}

.letters-trace-helper.trace-dir-right {
  animation: lettersTraceHintRight 1200ms ease-in-out infinite;
}

.letters-trace-helper.trace-dir-left {
  animation: lettersTraceHintLeft 1200ms ease-in-out infinite;
}

.letters-trace-helper.trace-dir-down {
  animation: lettersTraceHintDown 1200ms ease-in-out infinite;
}

.letters-trace-helper.trace-dir-up {
  animation: lettersTraceHintUp 1200ms ease-in-out infinite;
}

@keyframes lettersTraceHintRight {
  50% { transform: translateX(5px); }
}

@keyframes lettersTraceHintLeft {
  50% { transform: translateX(-5px); }
}

@keyframes lettersTraceHintDown {
  50% { transform: translateY(5px); }
}

@keyframes lettersTraceHintUp {
  50% { transform: translateY(-5px); }
}

.letters-trace-progress {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 20px;
  height: 12px;
  overflow: hidden;
  width: calc(100% - 44px);
  border: 0;
  border-radius: 999px;
  background: rgba(112, 72, 232, 0.14);
}

.letters-trace-progress::-webkit-progress-bar {
  border-radius: 999px;
  background: rgba(112, 72, 232, 0.14);
}

.letters-trace-progress::-webkit-progress-value {
  border-radius: 999px;
  background: linear-gradient(90deg, var(--letters-purple), var(--letters-pink));
}

.letters-trace-progress::-moz-progress-bar {
  border-radius: 999px;
  background: linear-gradient(90deg, var(--letters-purple), var(--letters-pink));
}

.letters-match-letter {
  display: grid;
  place-items: center;
  min-height: 220px;
  border-radius: 28px;
  background: var(--letters-purple-soft);
  color: var(--letters-purple);
  font-size: clamp(5.5rem, 18vw, 10rem);
  font-weight: 950;
}

.letters-read-panel {
  min-height: 340px;
}

.letters-audio-status,
.letters-sounds-feedback {
  min-height: 1.4em;
  color: #a94c37;
  font-weight: 900;
  text-align: center;
}

.letters-sounds-feedback {
  justify-self: center;
  min-width: min(100%, 300px);
  padding: 9px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: var(--letters-soft-shadow);
  color: #33405d;
}

.letters-sounds-feedback:empty {
  min-width: 0;
  min-height: 0;
  padding: 0;
  background: transparent;
  box-shadow: none;
}

.letters-sounds-feedback.is-good {
  color: #16824a;
}

.letters-sounds-feedback.is-warn {
  color: #b23b2e;
}

.letters-sounds-preview {
  justify-self: center;
  max-width: 760px;
  padding: 12px 16px;
  border: 1px dashed rgba(93, 112, 150, 0.32);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: var(--letters-soft-shadow);
  color: #31546a;
  font-weight: 900;
  text-align: center;
}

.letters-sounds-preview-label {
  color: #c05f35;
  margin-inline-end: 6px;
  font-weight: 950;
}

@media (max-width: 760px) {
  .letters-sounds-topbar {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .letters-sounds-stats {
    justify-content: center;
  }

  .letters-intro-grid,
  .letters-match-layout,
  .letters-trace {
    grid-template-columns: 1fr;
  }

  .letters-sounds-card {
    min-height: auto;
  }

  .letters-sounds-card[data-step="journey"] {
    min-height: auto;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(43, 63, 116, 0.24)),
      url("../img/home-path/world-forest-mobile.webp") center / cover no-repeat;
  }

  .letters-journey {
    align-content: start;
    gap: 11px;
  }

  .letters-journey-title {
    font-size: clamp(1.42rem, 6.4vw, 1.92rem);
  }

  .letters-journey-subtitle {
    max-width: 280px;
    font-size: 0.86rem;
  }

  .letters-journey-set-tabs {
    grid-auto-flow: column;
    grid-auto-columns: minmax(132px, 148px);
    grid-template-columns: none;
    justify-content: start;
    width: min(100%, 320px);
    padding: 4px 2px 8px;
    overflow-x: auto;
    scroll-snap-type: x proximity;
  }

  .letters-journey-set-tab {
    min-height: 70px;
    scroll-snap-align: center;
  }

  .letters-journey-rail {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: none;
    gap: 7px;
    width: min(100%, 326px);
    min-height: 0;
    padding: 8px 6px 2px;
    overflow: visible;
  }

  .letters-journey-rail::before {
    left: 50%;
    right: auto;
    top: 18px;
    bottom: 18px;
    width: 10px;
    height: auto;
    transform: translateX(-50%);
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.28), rgba(255, 236, 178, 0.5), rgba(255, 255, 255, 0.2));
    box-shadow: 0 8px 18px rgba(77, 55, 31, 0.08);
    border-radius: 999px;
  }

  .letters-journey-card,
  .letters-journey-card:nth-child(odd),
  .letters-journey-card:nth-child(even),
  .letters-journey-card:nth-child(1),
  .letters-journey-card:nth-child(2),
  .letters-journey-card:nth-child(3),
  .letters-journey-card:nth-child(4),
  .letters-journey-card:nth-child(5),
  .letters-journey-card:nth-child(6),
  .letters-journey-card.is-current,
  .letters-journey-card:nth-child(even).is-current {
    grid-row: auto;
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr);
    justify-items: start;
    align-items: center;
    justify-self: start;
    gap: 8px;
    width: min(100%, 210px);
    padding: 3px 4px;
    border-radius: 24px;
    transform: none;
  }

  .letters-journey-card:nth-child(even) {
    grid-template-columns: minmax(0, 1fr) 72px;
    justify-self: end;
  }

  .letters-journey-card.is-current,
  .letters-journey-card:nth-child(even).is-current {
    grid-template-columns: 104px minmax(0, 1fr);
    width: min(100%, 292px);
    gap: 10px;
    padding: 8px 9px;
    border-radius: 30px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.16));
    box-shadow: 0 18px 42px rgba(23, 39, 72, 0.2);
    backdrop-filter: blur(5px);
  }

  .letters-journey-card:nth-child(even).is-current {
    grid-template-columns: minmax(0, 1fr) 104px;
  }

  .letters-journey-card:nth-child(even) .letters-journey-marker {
    order: 2;
  }

  .letters-journey-card:nth-child(even) .letters-journey-copy {
    order: 1;
  }

  .letters-journey-card.is-locked,
  .letters-journey-card.is-available {
    opacity: 0.72;
  }

  .letters-journey-card-status {
    min-height: 18px;
    padding: 3px 7px;
    font-size: 0.58rem;
  }

  .letters-journey-grapheme {
    margin-top: 4px;
    font-size: 1.48rem;
  }

  .letters-journey-card.is-current .letters-journey-grapheme {
    font-size: 2.18rem;
  }

  .letters-journey-marker {
    width: 64px;
    border-width: 2px;
  }

  .letters-journey-card.is-current .letters-journey-marker {
    width: 96px;
  }

  .letters-journey-visual {
    display: grid;
    width: 36px;
  }

  .letters-journey-card.is-current .letters-journey-visual {
    display: grid;
    width: 56px;
  }

  .letters-journey-word {
    font-size: 0.72rem;
    line-height: 1;
  }

  .letters-journey-copy {
    min-width: 70px;
    max-width: 94px;
    padding: 4px 7px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.78);
  }

  .letters-journey-card.is-current .letters-journey-copy {
    min-width: 108px;
    max-width: 130px;
    padding: 7px 10px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.96);
  }

  .letters-journey-start {
    width: min(100%, 282px);
    min-height: 54px;
    margin-top: 12px;
  }

  .letters-intro-lesson {
    grid-template-columns: 1fr;
  }

  .letters-intro-stage {
    min-height: 360px;
    gap: 10px;
  }

  .letters-sounds-card[data-step="intro"] .letters-intro-actions {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    order: 2;
  }

  .letters-sounds-card[data-step="intro"] .letters-sound-button {
    display: grid;
    justify-items: center;
    gap: 7px;
    min-height: 74px;
    padding: 9px 7px;
    text-align: center;
  }

  .letters-sounds-card[data-step="intro"] .letters-sound-button span:last-child {
    font-size: 0.8rem;
  }

  .letters-sounds-card[data-step="intro"] .letters-primary-action {
    justify-self: stretch;
  }
}

@media (max-width: 560px) {
  .letters-sounds-app {
    padding: 10px;
  }

  .letters-sounds-stats .stat-pill {
    font-size: 0.78rem;
    padding: 7px 10px;
  }

  .letters-intro-actions,
  .letters-picture-grid,
  .letters-letter-choice-grid {
    gap: 9px;
  }

  .letters-sound-button,
  .letters-primary-action {
    min-height: 52px;
    padding: 10px;
    border-radius: 16px;
    font-size: 0.88rem;
  }

  .letters-picture-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .letters-picture-choice {
    grid-template-columns: auto 1fr;
    justify-items: start;
    min-height: 96px;
    padding: 10px 14px;
    border-radius: 22px;
  }

  .letters-picture-choice .letters-picture-word {
    justify-self: start;
    font-size: 1.2rem;
  }

  .letters-picture {
    width: 76px;
    border-radius: 20px;
  }

  .letters-visual {
    width: 56px;
    height: 56px;
  }

  .letters-letter-panel,
  .letters-word-panel,
  .letters-read-panel {
    min-height: 210px;
  }

  .letters-sounds-card[data-step="intro"] {
    min-height: auto;
    border-radius: 24px;
  }

  .letters-intro-stage {
    min-height: 330px;
    border-radius: 22px;
  }

  .letters-sounds-card[data-step="intro"] .letters-letter-pair {
    font-size: clamp(3.2rem, 17vw, 4.8rem);
  }

  .letters-picture.letters-picture-hero {
    width: min(72vw, 250px);
    border-radius: 26px;
  }

  .letters-word-hero {
    font-size: clamp(1.8rem, 9vw, 2.7rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .letters-sound-button,
  .letters-primary-action,
  .letters-picture-choice,
  .letters-letter-choice {
    transition: none;
  }

  .letters-trace-helper {
    animation: none;
  }

  .letters-sound-button.is-required-action::after,
  .letters-primary-action.is-required-action::after {
    animation: none;
  }

  .letters-loading-spinner {
    animation: none;
  }
}

/* Mobile journey width fix */
@media (max-width: 520px) {
  body.letters-sounds-shell {
    padding-left: 8px;
    padding-right: 8px;
  }

  body.letters-sounds-shell .letters-sounds-app {
    width: 100%;
    padding-left: 0;
    padding-right: 0;
  }

  body.letters-sounds-shell .letters-sounds-app[data-step="journey"] .letters-sounds-stage {
    width: calc(100vw - 16px);
    max-width: none;
    margin-left: auto;
    margin-right: auto;
  }

  body.letters-sounds-shell .letters-sounds-card {
    padding-left: 12px;
    padding-right: 12px;
  }
}

/* Mobile set carousel swipe hint */
@media (max-width: 760px) {
  .letters-journey-set-tabs {
    position: relative;
    scrollbar-width: none;
    -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 22px, #000 calc(100% - 22px), transparent 100%);
    mask-image: linear-gradient(90deg, transparent 0, #000 22px, #000 calc(100% - 22px), transparent 100%);
  }

  .letters-journey-set-tabs::-webkit-scrollbar {
    display: none;
  }

  .letters-journey-header::after {
    content: "‹  swipe  ›";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 22px;
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.92);
    font-size: 0.68rem;
    font-weight: 950;
    letter-spacing: 0.04em;
    text-shadow: 0 2px 8px rgba(22, 31, 56, 0.28);
  }
}

@media (max-width: 760px) and (prefers-reduced-motion: no-preference) {
  .letters-journey-header::after {
    animation: lettersSetSwipeHint 1800ms ease-in-out infinite;
  }
}

@keyframes lettersSetSwipeHint {
  0%, 100% {
    opacity: 0.64;
    box-shadow: 0 0 0 rgba(255, 255, 255, 0);
  }

  50% {
    opacity: 1;
    box-shadow: 0 0 18px rgba(255, 255, 255, 0.22);
  }
}

/* Mobile set carousel side arrows */
@media (max-width: 760px) {
  .letters-journey-header {
    position: relative;
  }

  .letters-journey-header::before,
  .letters-journey-header::after {
    position: absolute;
    top: calc(100% - 58px);
    z-index: 3;
    display: grid;
    place-items: center;
    width: 26px;
    height: 44px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.34);
    color: rgba(255, 255, 255, 0.96);
    box-shadow:
      0 10px 22px rgba(23, 39, 72, 0.16),
      inset 0 1px 0 rgba(255, 255, 255, 0.5);
    font-size: 1.1rem;
    font-weight: 950;
    line-height: 1;
    pointer-events: none;
    text-shadow: 0 2px 8px rgba(22, 31, 56, 0.26);
    backdrop-filter: blur(10px);
  }

  .letters-journey-header::before {
    content: "<";
    left: 6px;
  }

  .letters-journey-header::after {
    content: ">";
    right: 6px;
    min-height: 44px;
    padding: 0;
    letter-spacing: 0;
  }

  .letters-journey-set-tabs {
    padding-left: 30px;
    padding-right: 30px;
  }
}

@media (max-width: 760px) and (prefers-reduced-motion: no-preference) {
  .letters-journey-header::before,
  .letters-journey-header::after {
    animation: lettersSetArrowHint 1600ms ease-in-out infinite;
  }

  .letters-journey-header::after {
    animation-delay: 220ms;
  }
}

@keyframes lettersSetArrowHint {
  0%, 100% {
    opacity: 0.62;
    box-shadow:
      0 10px 22px rgba(23, 39, 72, 0.12),
      inset 0 1px 0 rgba(255, 255, 255, 0.42);
  }

  50% {
    opacity: 1;
    box-shadow:
      0 12px 26px rgba(23, 39, 72, 0.18),
      0 0 18px rgba(255, 255, 255, 0.28),
      inset 0 1px 0 rgba(255, 255, 255, 0.58);
  }
}

/* Real set carousel arrows layout */
.letters-journey-set-tabs-wrap {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 36px;
  align-items: center;
  justify-self: center;
  gap: 8px;
  width: min(100%, 760px);
}

.letters-journey-set-arrow {
  display: grid;
  place-items: center;
  width: 34px;
  height: 52px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
  color: rgba(255, 255, 255, 0.96);
  box-shadow:
    0 10px 22px rgba(23, 39, 72, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
  font: inherit;
  font-size: 1.15rem;
  font-weight: 950;
  line-height: 1;
  cursor: pointer;
  text-shadow: 0 2px 8px rgba(22, 31, 56, 0.26);
  backdrop-filter: blur(10px);
}

.letters-journey-set-arrow:hover {
  background: rgba(255, 255, 255, 0.42);
}

.letters-journey-set-tabs-wrap .letters-journey-set-tabs {
  width: 100%;
  min-width: 0;
}

@media (max-width: 760px) {
  .letters-journey-header {
    overflow: hidden;
  }

  .letters-journey-header::before,
  .letters-journey-header::after {
    content: none;
    display: none;
    animation: none;
  }

  .letters-journey-set-tabs-wrap {
    grid-template-columns: 28px minmax(0, 1fr) 28px;
    gap: 6px;
    width: min(100%, 334px);
  }

  .letters-journey-set-arrow {
    width: 28px;
    height: 48px;
    font-size: 1rem;
  }

  .letters-journey-set-tabs-wrap .letters-journey-set-tabs {
    width: 100%;
    padding-left: 2px;
    padding-right: 2px;
  }
}

/* Desktop match layout width fix */
@media (min-width: 900px) {
  body.letters-sounds-shell .letters-sounds-stage {
    width: min(92vw, 1120px);
  }

  body.letters-sounds-shell .letters-sounds-card[data-step="match"] {
    width: 100%;
    padding-left: clamp(26px, 3vw, 44px);
    padding-right: clamp(26px, 3vw, 44px);
  }

  body.letters-sounds-shell .letters-sounds-card[data-step="match"] .letters-match-layout {
    grid-template-columns: minmax(260px, 0.75fr) minmax(560px, 1.55fr);
    grid-template-rows: auto auto;
    gap: clamp(18px, 2.4vw, 30px) clamp(28px, 4vw, 54px);
  }

  body.letters-sounds-shell .letters-sounds-card[data-step="match"] .letters-match-layout > .letters-inline-sound-button {
    grid-column: 1;
    grid-row: 1;
    align-self: end;
    justify-self: center;
  }

  body.letters-sounds-shell .letters-sounds-card[data-step="match"] .letters-match-layout > .letters-match-letter {
    grid-column: 1;
    grid-row: 2;
    width: 100%;
  }

  body.letters-sounds-shell .letters-sounds-card[data-step="match"] .letters-picture-grid {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
    width: 100%;
    min-width: 0;
    grid-template-columns: repeat(3, minmax(160px, 1fr));
    gap: clamp(16px, 1.8vw, 24px);
  }

  body.letters-sounds-shell .letters-sounds-card[data-step="match"] .letters-picture-choice {
    min-width: 0;
    min-height: 210px;
    padding: 18px 16px;
  }

  body.letters-sounds-shell .letters-sounds-card[data-step="match"] .letters-picture {
    width: clamp(132px, 10vw, 170px);
    max-width: 100%;
  }
}

@media (min-width: 900px) and (max-width: 1180px) {
  body.letters-sounds-shell .letters-sounds-card[data-step="match"] .letters-match-layout {
    grid-template-columns: minmax(230px, 0.7fr) minmax(480px, 1.5fr);
  }

  body.letters-sounds-shell .letters-sounds-card[data-step="match"] .letters-picture-grid {
    grid-template-columns: repeat(3, minmax(138px, 1fr));
  }
}

/* Pattern build for non-letter sound units */
.letters-pattern-build {
  display: grid;
  justify-items: center;
  gap: clamp(14px, 2.6vw, 22px);
  justify-self: center;
  width: min(100%, 560px);
  padding: clamp(18px, 3vw, 30px);
  border: 1px solid rgba(255, 255, 255, 0.88);
  border-radius: 30px;
  background:
    radial-gradient(circle at 50% 18%, rgba(255, 211, 95, 0.24), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(247, 249, 255, 0.9));
  box-shadow:
    0 18px 42px rgba(37, 47, 86, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
  text-align: center;
}

.letters-pattern-build-sound {
  min-width: min(100%, 190px);
  padding: clamp(12px, 2vw, 18px) clamp(18px, 3vw, 30px);
  border: 1px solid rgba(112, 72, 232, 0.13);
  border-radius: 28px;
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 211, 95, 0.28), transparent 58%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 242, 255, 0.9));
  color: var(--letters-purple);
  box-shadow: 0 18px 38px rgba(112, 72, 232, 0.12);
  font-size: clamp(3rem, 8vw, 5.2rem);
  font-weight: 950;
  line-height: 0.9;
}

.letters-pattern-tiles {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.letters-pattern-tile {
  display: grid;
  place-items: center;
  min-width: 62px;
  min-height: 62px;
  padding: 10px 15px;
  border: 1px solid rgba(112, 72, 232, 0.14);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.94);
  color: #26324f;
  box-shadow: 0 12px 26px rgba(37, 47, 86, 0.1);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 950;
  line-height: 1;
}

.letters-pattern-tile:last-child {
  background: var(--letters-purple-soft);
  color: var(--letters-purple);
}

.letters-pattern-build-prompt {
  max-width: 430px;
  margin: 0;
  color: #33405d;
  font-size: clamp(1rem, 2.5vw, 1.18rem);
  font-weight: 900;
  line-height: 1.28;
}

.letters-cvc-build {
  display: grid;
  justify-items: center;
  gap: clamp(14px, 2.6vw, 22px);
  justify-self: center;
  width: min(100%, 560px);
  padding: clamp(18px, 3vw, 30px);
  border: 1px solid rgba(255, 255, 255, 0.88);
  border-radius: 30px;
  background:
    radial-gradient(circle at 50% 18%, rgba(48, 180, 111, 0.16), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(247, 249, 255, 0.9));
  box-shadow:
    0 18px 42px rgba(37, 47, 86, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
  text-align: center;
}

.letters-cvc-tiles {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.letters-cvc-tile {
  display: grid;
  place-items: center;
  width: clamp(64px, 14vw, 86px);
  aspect-ratio: 1;
  border: 1px solid rgba(112, 72, 232, 0.14);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.94);
  color: #26324f;
  box-shadow: 0 12px 26px rgba(37, 47, 86, 0.1);
  font-size: clamp(1.7rem, 5vw, 2.5rem);
  font-weight: 950;
  line-height: 1;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.letters-cvc-tile.is-active {
  border-color: rgba(48, 180, 111, 0.58);
  background: rgba(232, 255, 241, 0.96);
  color: #12663b;
  transform: translateY(-4px);
}

.letters-cvc-meaning {
  display: grid;
  justify-items: center;
  gap: 12px;
}

.letters-cvc-meaning.is-hidden {
  display: none;
}

.letters-cvc-listen {
  margin: 0;
  color: #33405d;
  font-size: clamp(1rem, 2.5vw, 1.18rem);
  font-weight: 900;
  line-height: 1.28;
}

.letters-cvc-build [hidden] {
  display: none;
}

@media (max-width: 560px) {
  .letters-pattern-build {
    width: 100%;
    gap: 12px;
    padding: 16px 12px;
    border-radius: 24px;
  }

  .letters-pattern-build-sound {
    font-size: clamp(3rem, 17vw, 4.7rem);
  }

  .letters-pattern-tile {
    min-width: 54px;
    min-height: 54px;
    border-radius: 17px;
  }

  .letters-pattern-build .letters-picture.letters-picture-hero {
    width: min(72vw, 230px);
  }

  .letters-pattern-build .letters-word-hero {
    font-size: clamp(1.7rem, 8vw, 2.5rem);
  }

  .letters-cvc-build {
    width: 100%;
    gap: 12px;
    padding: 16px 12px;
    border-radius: 24px;
  }

  .letters-cvc-tile {
    width: clamp(58px, 18vw, 72px);
    border-radius: 17px;
  }

  .letters-cvc-build .letters-picture.letters-picture-hero {
    width: min(72vw, 230px);
  }

  .letters-cvc-build .letters-word-hero {
    font-size: clamp(1.7rem, 8vw, 2.5rem);
  }
}

.letters-cvc-coach {
  position: relative;
  justify-self: start;
  display: grid;
  place-items: center;
  width: clamp(86px, 20vw, 112px);
  min-height: clamp(76px, 18vw, 98px);
  margin: -6px 0 -12px clamp(8px, 3vw, 20px);
  padding: 0;
  border: 0;
  border-radius: 24px;
  background:
    radial-gradient(circle at 46% 60%, rgba(48, 180, 111, 0.16), transparent 58%),
    radial-gradient(circle at 50% 66%, rgba(112, 72, 232, 0.1), transparent 62%);
  box-shadow: none;
  overflow: visible;
  pointer-events: none;
}

.letters-cvc-coach::after {
  content: "";
  position: absolute;
  right: -10px;
  top: 18px;
  width: 28px;
  height: 20px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 18px rgba(37, 47, 86, 0.12);
}

.letters-cvc-coach-avatar {
  width: clamp(82px, 20vw, 110px);
  height: clamp(82px, 20vw, 110px);
  object-fit: contain;
  transform: none;
  transform-origin: center;
  filter: drop-shadow(0 14px 20px rgba(37, 47, 86, 0.22));
}

.letters-cvc-coach-bubble {
  display: none;
}

@media (max-width: 560px) {
  .letters-cvc-coach {
    width: clamp(76px, 22vw, 96px);
    min-height: clamp(68px, 20vw, 86px);
    margin-top: -4px;
    margin-bottom: -10px;
    margin-inline-start: 10px;
    border-radius: 22px;
  }

  .letters-cvc-coach::after {
    right: -8px;
    top: 14px;
    width: 24px;
    height: 18px;
  }

  .letters-cvc-coach-avatar {
    width: clamp(74px, 23vw, 94px);
    height: clamp(74px, 23vw, 94px);
  }
}