:root {
  font-family: "Fredoka", "Poppins", "Inter", system-ui, sans-serif;
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-alt: #334155;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-2: #f472b6;
  --accent-3: #fbbf24;
  --success: #4ade80;
  --error: #f87171;
  color: var(--text);
  background-color: var(--bg);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #1d2542, #0f172a 55%);
  display: flex;
  justify-content: center;
  padding: 2rem;
}

.app-shell {
  width: min(1200px, 100%);
  min-height: 90vh;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 32px;
  padding: 2rem 3rem 3rem;
  box-shadow: 0 20px 60px rgba(2, 6, 23, 0.7);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.app-header .username {
  font-size: clamp(1.8rem, 2.2vw, 2.3rem);
  color: var(--accent-3);
  text-transform: none;
  font-weight: 600;
  margin-left: 0.25rem;
}

.app-header h1 {
  font-size: clamp(3.4rem, 5vw, 4.5rem);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
}

p {
  margin: 0;
}

.eyebrow {
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-3);
}

.lead {
  font-size: 1.4rem;
  color: var(--muted);
}

main {
  flex: 1;
  display: flex;
}

.view {
  flex: 1;
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 1.5rem;
}

.view.active {
  display: flex;
}

.menu-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.card-btn {
  background: var(--panel);
  border: 1px solid transparent;
  border-radius: 24px;
  min-height: 220px;
  padding: 2rem;
  text-align: left;
  color: inherit;
  cursor: pointer;
  transition: transform 0.3s ease, border 0.3s ease;
}

.card-btn:hover,
.card-btn:focus-visible {
  transform: translateY(-6px);
  border-color: var(--accent);
}

.card-content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.card-content .eyebrow {
  font-size: 1.15rem;
}

.card-content h2 {
  font-size: 2.3rem;
}

.muted {
  color: var(--muted);
}

.card-content .muted {
  font-size: 1.4rem;
}

button {
  border: none;
  border-radius: 999px;
  padding: 1rem 1.7rem;
  font-size: 1.15rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s ease;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.primary {
  background: var(--accent);
  color: #031525;
  box-shadow: 0 10px 30px rgba(56, 189, 248, 0.25);
}

.primary:hover,
.primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(56, 189, 248, 0.35);
  filter: brightness(1.1);
}

.secondary {
  background: var(--panel-alt);
  color: var(--text);
}

.secondary:hover,
.secondary:focus-visible {
  background: var(--panel);
  transform: translateY(-2px);
  color: #fff;
}

.secondary.ghost {
  background: transparent;
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.secondary.ghost:hover,
.secondary.ghost:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(56, 189, 248, 0.1);
}

.icon-btn {
  background: var(--panel-alt);
  color: var(--text);
  padding: 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  transition: all 0.2s ease;
  border-radius: 50%;
  width: 48px;
  height: 48px;
}

.icon-btn:hover {
  background: var(--panel);
  transform: scale(1.1);
}

.panel {
  background: var(--panel);
  border-radius: 24px;
  padding: 2rem;
  border: 1px solid rgba(148, 163, 184, 0.2);
  text-align: center;
}

.panel button {
  margin-top: 1.5rem;
}

.math-layout {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: var(--panel);
  border-radius: 32px;
  padding: 2rem;
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.inline-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.sum-goal-display {
  font-size: 2.3rem;
  font-weight: 600;
  color: var(--accent);
}

.target-tile {
  background: rgba(56, 189, 248, 0.1);
  border-radius: 28px;
  padding: 1.5rem;
  text-align: center;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.target-number {
  font-size: clamp(3.5rem, 11vw, 7rem);
  font-weight: 700;
  margin: 0.5rem 0;
  animation: bounce 2.5s ease-in-out infinite;
}

.equation-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 700;
  margin: 0.75rem 0;
}

.equation-part {
  min-width: 1.5ch;
  text-align: center;
}

.equation-unknown {
  color: var(--accent-3);
  animation: bounce 2.5s ease-in-out infinite;
}

.equation-op,
.equation-eq {
  color: var(--muted);
  font-weight: 500;
}

.instruction {
  font-size: 1.5rem;
  margin: 0.5rem 0;
}

.character-instruction {
  position: relative;
  display: inline-flex;
  gap: 1rem;
  align-items: center;
  margin: 1.5rem auto;
}

.character-instruction__image {
  width: clamp(200px, 40vw, 300px);
  height: auto;
  filter: drop-shadow(0 10px 25px rgba(0, 0, 0, 0.35));
}

.character-instruction__speech {
  font-size: clamp(1.15rem, 2.5vw, 1.65rem);
  line-height: 1.4;
  font-weight: 600;
}

.character-instruction--builtin {
  display: inline-block;
}

.character-instruction--builtin .character-instruction__image {
  width: clamp(220px, 45vw, 320px);
}

.character-instruction--builtin .character-instruction__speech {
  position: absolute;
  top: 7%;
  left: 14%;
  width: 78%;
  height: 34%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 1.25rem;
  color: #1f2933;
  text-align: center;
  text-shadow: 0 3px 10px rgba(255, 255, 255, 0.9);
  pointer-events: none;
}

.character-instruction--overlay {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
}

.character-instruction--overlay .character-instruction__speech {
  position: relative;
  background: #fff;
  color: #0f172a;
  border-radius: 28px;
  padding: 0.75rem 1.25rem;
  border: 4px solid #111827;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.3);
  text-align: center;
  margin-bottom: 0.5rem;
  order: -1; /* Place speech bubble above image */
}

.character-instruction--overlay .character-instruction__speech::after {
  content: "";
  position: absolute;
  bottom: -22px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border: 14px solid transparent;
  border-top-color: #111827;
}

.character-instruction--overlay .character-instruction__speech::before {
  content: "";
  position: absolute;
  bottom: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border: 14px solid transparent;
  border-top-color: #fff;
}

.character-instruction--overlay .character-instruction__image {
  width: clamp(100px, 15vw, 140px);
}

.round-indicator {
  margin-top: 0.5rem;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.stat-card {
  background: rgba(15, 23, 42, 0.55);
  border-radius: 20px;
  padding: 1rem 1.5rem;
  border: 1px solid rgba(148, 163, 184, 0.25);
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 600;
  margin-top: 0.25rem;
}

.progress-panel {
  background: var(--panel);
  border-radius: 32px;
  padding: 2rem;
  border: 1px solid rgba(148, 163, 184, 0.2);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.stats-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.chart-card {
  background: rgba(15, 23, 42, 0.6);
  border-radius: 24px;
  padding: 1.5rem;
  border: 1px solid rgba(148, 163, 184, 0.2);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.chart-card:hover,
.chart-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.answers {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.answer-btn {
  background: var(--panel-alt);
  border-radius: 20px;
  font-size: 2.3rem;
  min-height: 100px;
  transition: transform 0.2s ease, background 0.2s ease;
  color: var(--text);
  border: 2px solid transparent;
}

.answer-btn:hover:not(:disabled),
.answer-btn:focus-visible:not(:disabled) {
  background: var(--panel);
  transform: translateY(-4px);
  border-color: var(--accent);
}

.answer-btn:active {
  transform: scale(0.97);
}

.answer-btn.correct {
  background: rgba(74, 222, 128, 0.9);
  color: #052e16;
}

.answer-btn.incorrect {
  background: rgba(248, 113, 113, 0.9);
}

.chart-modal {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.85);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
  z-index: 1000;
}

.chart-modal.hidden {
  opacity: 0;
  pointer-events: none;
}

.chart-modal-content {
  width: min(900px, 100%);
  background: var(--panel);
  border-radius: 32px;
  padding: 2rem;
  border: 1px solid rgba(148, 163, 184, 0.2);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.chart-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.celebration-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1200;
  overflow: hidden;
}

.celebration-overlay.hidden {
  opacity: 0;
}

.firework {
  position: absolute;
  width: 0;
  height: 0;
  color: hsl(var(--hue, 45), 90%, 60%);
  filter: drop-shadow(0 0 8px currentColor);
}

.spark {
  position: absolute;
  width: 21px;
  height: 21px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    #fff 0%,
    currentColor 60%,
    transparent 100%
  );
  box-shadow: 0 0 33px currentColor;
  mix-blend-mode: screen;
  animation: spark 3600ms ease-out forwards;
  transform-origin: center;
}

@keyframes spark {
  0% {
    transform: translate(0, 0) scale(0.05);
    opacity: 1;
  }
  25% {
    transform: translate(calc(var(--tx) * 0.15), calc(var(--ty) * 0.15))
      scale(0.3);
    opacity: 1;
  }
  60% {
    opacity: 0.95;
  }
  100% {
    transform: translate(var(--tx), var(--ty)) scale(0.8);
    opacity: 0;
  }
}

.admin-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.admin-panel form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: left;
}

.admin-panel label {
  font-weight: 600;
}

.admin-panel input[type="number"],
.admin-panel input[type="text"] {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border-radius: 16px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.6);
  color: var(--text);
  font-size: 1.15rem;
}

.admin-panel input[type="number"]:focus,
.admin-panel input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

.admin-panel small {
  color: var(--muted);
}

.admin-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.feedback {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--muted);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  transition: opacity 0.3s ease;
}

.modal.hidden {
  pointer-events: none;
  opacity: 0;
}

.modal-content {
  background: var(--panel);
  border-radius: 32px;
  padding: 2rem;
  width: min(500px, 100%);
  border: 1px solid rgba(148, 163, 184, 0.2);
  text-align: center;
}

.goal-options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.5rem 0;
}

.goal-options button {
  font-size: 1.5rem;
  padding: 1.25rem 1.7rem;
}

.goal-options .primary {
  color: #fff;
  text-shadow: 0 1px 1px rgba(3, 21, 37, 0.25);
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Name form styling */
#name-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

#name-form input[type="text"] {
  width: 100%;
  padding: 1.1rem 1.7rem;
  border-radius: 20px;
  border: 2px solid rgba(148, 163, 184, 0.3);
  background: rgba(15, 23, 42, 0.8);
  color: var(--text);
  font-size: 1.6rem;
  text-align: center;
  font-family: inherit;
  transition: all 0.2s ease;
}

#name-form input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.15);
  background: rgba(15, 23, 42, 0.95);
}

#name-form input[type="text"]::placeholder {
  color: var(--muted);
  opacity: 0.6;
}

/* Spot the Mistake - Sequence styles */
.spot-mistake-tile {
  padding: 2rem 1.5rem;
}

.sequence-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.sequence-btn {
  background: var(--panel-alt);
  border-radius: 16px;
  font-size: 1.8rem;
  min-width: 70px;
  min-height: 70px;
  padding: 0.75rem 1rem;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  color: var(--text);
  border: 2px solid transparent;
  font-weight: 600;
}

.sequence-btn:hover:not(:disabled),
.sequence-btn:focus-visible:not(:disabled) {
  background: var(--panel);
  transform: translateY(-4px) scale(1.05);
  border-color: var(--accent);
}

.sequence-btn:active:not(:disabled) {
  transform: scale(0.95);
}

.sequence-btn.correct {
  background: rgba(74, 222, 128, 0.9);
  color: #052e16;
  border-color: var(--success);
}

.sequence-btn.incorrect {
  background: rgba(248, 113, 113, 0.9);
  border-color: var(--error);
}

.sequence-btn.highlight {
  animation: pulse-highlight 0.6s ease-in-out;
  border-color: var(--accent-3);
  background: rgba(251, 191, 36, 0.3);
}

@keyframes pulse-highlight {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  20%,
  60% {
    transform: translateX(-8px);
  }
  40%,
  80% {
    transform: translateX(8px);
  }
}

.shake {
  animation: shake 0.4s ease-in-out;
}

/* Contractions Game Styles */
.contractions-layout {
  max-width: 700px;
  margin: 0 auto;
}

.contractions-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.contractions-tile {
  padding: 2rem 1.5rem;
}

.contractions-prompt-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.contractions-prompt {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 700;
  margin: 1rem 0;
  color: var(--accent);
  animation: bounce 2.5s ease-in-out infinite;
}

.pronunciation-btn {
  background: var(--panel-alt);
  border: 2px solid transparent;
  border-radius: 50%;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  flex-shrink: 0;
}

.pronunciation-btn .icon {
  font-size: 1.6rem;
}

.pronunciation-btn:hover:not(:disabled),
.pronunciation-btn:focus-visible:not(:disabled) {
  background: var(--panel);
  transform: scale(1.1);
  border-color: var(--accent);
}

.pronunciation-btn:active:not(:disabled) {
  transform: scale(0.95);
}

.pronunciation-btn.loading {
  opacity: 0.6;
  pointer-events: none;
}

.pronunciation-btn.loading .icon {
  animation: pulse 0.8s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

.contractions-answers {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.contraction-btn {
  background: var(--panel-alt);
  border-radius: 20px;
  font-size: 1.6rem;
  min-height: 80px;
  padding: 1rem 1.5rem;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  color: var(--text);
  border: 2px solid transparent;
  font-weight: 500;
  text-align: center;
}

.contraction-btn:hover:not(:disabled),
.contraction-btn:focus-visible:not(:disabled) {
  background: var(--panel);
  transform: translateY(-4px);
  border-color: var(--accent);
}

.contraction-btn:active:not(:disabled) {
  transform: scale(0.97);
}

.contraction-btn.correct {
  background: rgba(74, 222, 128, 0.9);
  color: #052e16;
  border-color: var(--success);
}

.contraction-btn.incorrect {
  background: rgba(248, 113, 113, 0.9);
  border-color: var(--error);
}

.contraction-btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

/* Checkbox label styling for admin panel */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  margin-top: 0.5rem;
}

.checkbox-label input[type="checkbox"] {
  width: 22px;
  height: 22px;
  accent-color: var(--accent);
  cursor: pointer;
}

.checkbox-label span {
  font-weight: 600;
}

/* Next Round button in review mode */
.next-round-btn {
  margin-top: 1rem;
}

.feedback {
  flex-direction: column;
  text-align: center;
}

/* Spelling Numbers Game Styles */
.spelling-numbers-layout {
  max-width: 700px;
  margin: 0 auto;
}

.spelling-numbers-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.spelling-numbers-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  width: 100%;
}

.spelling-numbers-wrapper .spelling-numbers-layout {
  flex: 2;
  min-width: 0;
}

.spelling-numbers-prompt {
  text-align: center;
  padding: 1.5rem;
}

.spelling-numbers-character {
  flex: 1;
  max-width: 200px;
  margin: 0;
}

.spelling-numbers-character .character-instruction__image {
  width: clamp(120px, 16vw, 180px);
}

/* On smaller screens, hide character to prioritize game content */
@media (max-width: 900px) {
  .spelling-numbers-wrapper {
    flex-direction: column;
  }

  .spelling-numbers-character {
    display: none;
  }
}

.spelling-numbers-prompt .instruction {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.spelling-numbers-prompt .pick-instruction {
  font-size: 1rem;
  color: var(--text-muted);
  margin-top: 1rem;
}

.spelling-numbers-word {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.spelling-numbers-word .word-display {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  color: var(--accent);
}

.spelling-numbers-word .pronounce-btn {
  background: var(--panel-alt);
  border: 2px solid transparent;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.spelling-numbers-word .pronounce-btn:hover {
  background: var(--panel);
  transform: scale(1.1);
  border-color: var(--accent);
}

.spelling-numbers-word .pronounce-btn .icon {
  font-size: 1.4rem;
}

.spelling-numbers-answers {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  padding: 0 1rem;
}

.spelling-numbers-btn {
  background: var(--panel-alt);
  border-radius: 20px;
  font-size: 1.4rem;
  min-height: 70px;
  padding: 1rem 1.5rem;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  color: var(--text);
  border: 2px solid transparent;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
}

.spelling-numbers-btn:hover:not(:disabled),
.spelling-numbers-btn:focus-visible:not(:disabled) {
  background: var(--panel);
  transform: translateY(-4px);
  border-color: var(--accent);
}

.spelling-numbers-btn:active:not(:disabled) {
  transform: scale(0.97);
}

.spelling-numbers-btn.correct {
  background: rgba(74, 222, 128, 0.9);
  color: #052e16;
  border-color: var(--success);
}

.spelling-numbers-btn.incorrect {
  background: rgba(248, 113, 113, 0.9);
  border-color: var(--error);
}

.spelling-numbers-btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

/* Responsive adjustments for character guides on smaller screens */
@media (max-height: 700px) {
  .character-instruction {
    margin: 0.75rem auto;
  }

  .character-instruction__image {
    width: clamp(120px, 25vw, 180px);
  }

  .character-instruction--builtin .character-instruction__image {
    width: clamp(140px, 30vw, 200px);
  }

  .character-instruction__speech {
    font-size: clamp(0.95rem, 2vw, 1.2rem);
  }

  .character-instruction--overlay .character-instruction__speech {
    padding: 0.6rem 1rem;
    border-radius: 20px;
  }
}

@media (max-width: 480px) {
  .character-instruction {
    margin: 0.5rem auto;
  }

  .character-instruction__image {
    width: clamp(100px, 30vw, 150px);
  }

  .character-instruction--builtin .character-instruction__image {
    width: clamp(120px, 35vw, 180px);
  }

  .character-instruction__speech {
    font-size: clamp(0.9rem, 3.4vw, 1.1rem);
  }

  .character-instruction--overlay .character-instruction__speech {
    padding: 0.5rem 0.75rem;
    border-radius: 16px;
    border-width: 3px;
  }

  .character-instruction--overlay .character-instruction__speech::after,
  .character-instruction--overlay .character-instruction__speech::before {
    border-width: 10px;
    left: -18px;
  }

  .character-instruction--overlay .character-instruction__speech::before {
    left: -13px;
  }

  /* Reduce answer button height on mobile */
  .answer-btn {
    min-height: 70px;
    font-size: 1.8rem;
  }

  /* Reduce equation size on mobile */
  .equation-display {
    font-size: clamp(2rem, 10vw, 3.5rem);
    margin: 0.5rem 0;
  }

  /* Compact target tile on mobile */
  .target-tile {
    padding: 1rem;
  }

  /* Reduce math layout gaps on mobile */
  .math-layout {
    gap: 1rem;
    padding: 1.25rem;
  }
}

/* Very small screens - hide character to prioritize answer buttons */
@media (max-height: 550px) {
  .character-instruction {
    display: none;
  }
}