.icon-button, .pill-button, .primary-button, .secondary-button, .danger-button, .choice-button, .tile-button {
  border: 0;
  min-width: 56px;
  min-height: 56px;
  border-radius: var(--radius-md);
  color: var(--text);
  background: var(--surface);
  box-shadow: 0 8px 20px rgba(45, 88, 128, 0.12);
  font-weight: 900;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.icon-button:hover, .pill-button:hover, .primary-button:hover, .secondary-button:hover, .choice-button:hover, .tile-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(45, 88, 128, 0.16);
}

.icon-button { width: 60px; font-size: 1.35rem; }
.pill-button { padding: 12px 18px; }
.pill-button[aria-pressed='true'] { background: var(--mint); }
.primary-button { background: var(--primary); padding: 14px 24px; color: #10263b; }
.secondary-button { background: var(--surface-soft); padding: 14px 20px; }
.danger-button { width: 100%; background: #ffe8ec; color: var(--danger); padding: 14px 18px; margin-top: 12px; }

.accessibility-bar {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 12px clamp(16px, 4vw, 56px) 18px;
}

.hero-card, .progress-dashboard, .game-root {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(120, 183, 255, 0.28);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.dark-mode .hero-card, .dark-mode .progress-dashboard, .dark-mode .game-root { background: rgba(30, 45, 66, 0.9); }
.high-contrast .hero-card, .high-contrast .progress-dashboard, .high-contrast .game-root { border: 3px solid var(--text); }

.hero-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  padding: clamp(22px, 4vw, 42px);
}
.hero-text { max-width: 62ch; color: var(--muted); font-size: 1.08em; }
.mascot { font-size: clamp(4rem, 12vw, 9rem); filter: drop-shadow(0 14px 16px rgba(24, 50, 74, 0.15)); }

.progress-dashboard { margin-top: 20px; padding: 24px; }
.progress-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 18px 0; }
.stat-card { background: var(--surface-soft); border-radius: var(--radius-md); padding: 16px; text-align: center; }
.stat-card span { display: block; font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 900; }
.stat-card small { color: var(--muted); font-weight: 800; }
.progress-bar { height: 18px; border-radius: 999px; background: var(--surface-soft); overflow: hidden; }
.progress-bar span { display: block; height: 100%; width: 0%; background: linear-gradient(90deg, var(--primary), var(--mint)); border-radius: inherit; transition: width 0.3s ease; }
.badge-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.badge { background: var(--yellow); padding: 8px 12px; border-radius: 999px; font-weight: 900; }

.game-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 22px; }
.game-card { min-height: 220px; padding: 24px; border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow); border: 2px solid transparent; transition: transform 0.18s ease, border 0.18s ease; }
.game-card:hover, .game-card:focus-visible { transform: translateY(-4px); border-color: var(--primary); }
.game-icon { font-size: 3rem; display: block; margin-bottom: 12px; }
.game-card p { color: var(--muted); margin-bottom: 0; }

.settings-panel {
  position: fixed;
  inset: 0;
  background: rgba(12, 25, 40, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 900;
}
.settings-panel.open { display: flex; }
.settings-card { width: min(560px, 100%); background: var(--surface); color: var(--text); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); }
.panel-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.form-row, .switch-row { display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 14px 0; border-bottom: 1px solid rgba(120, 183, 255, 0.22); font-weight: 800; }
.form-row input[type='range'] { width: min(260px, 45vw); }
.switch-row input { width: 24px; height: 24px; }

.toast { position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%) translateY(120px); background: var(--text); color: var(--surface); padding: 14px 22px; border-radius: 999px; font-weight: 900; box-shadow: var(--shadow); transition: transform 0.25s ease; z-index: 950; }
.toast.show { transform: translateX(-50%) translateY(0); }

@media (max-width: 960px) { .game-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) {
  .hero-card { grid-template-columns: 1fr; }
  .mascot { text-align: center; }
  .progress-grid, .game-grid { grid-template-columns: 1fr; }
}

/* --- ITS ACCESSIBILITY INTERVENTIONS --- */

/* Dyslexia Font Accommodation */
body.dyslexia-font {
  font-family: 'Comic Neue', 'Nunito', 'Comic Sans MS', sans-serif !important;
  word-spacing: 0.28em !important;
  letter-spacing: 0.12em !important;
  line-height: 1.75 !important;
}
body.dyslexia-font button,
body.dyslexia-font input,
body.dyslexia-font p,
body.dyslexia-font span,
body.dyslexia-font h1,
body.dyslexia-font h2,
body.dyslexia-font h3 {
  letter-spacing: 0.08em !important;
  word-spacing: 0.2em !important;
}

/* Letter Confusion Highlight */
body.highlight-letters .letter-b {
  background-color: rgba(255, 227, 155, 0.45) !important;
  border-bottom: 4px solid #ffb703 !important;
  border-radius: 6px;
  padding: 0 4px;
  display: inline-block;
  box-shadow: 0 2px 5px rgba(255, 183, 3, 0.15);
}
body.highlight-letters .letter-d {
  background-color: rgba(169, 234, 210, 0.45) !important;
  border-bottom: 4px solid #207f5f !important;
  border-radius: 6px;
  padding: 0 4px;
  display: inline-block;
  box-shadow: 0 2px 5px rgba(32, 127, 95, 0.15);
}
body.highlight-letters .letter-p {
  background-color: rgba(216, 199, 255, 0.45) !important;
  border-bottom: 4px solid #9d85ff !important;
  border-radius: 6px;
  padding: 0 4px;
  display: inline-block;
  box-shadow: 0 2px 5px rgba(157, 133, 255, 0.15);
}
body.highlight-letters .letter-q {
  background-color: rgba(255, 232, 236, 0.7) !important;
  border-bottom: 4px solid var(--danger) !important;
  border-radius: 6px;
  padding: 0 4px;
  display: inline-block;
  box-shadow: 0 2px 5px rgba(200, 62, 77, 0.15);
}

/* Parent/Teacher Diagnostic Dashboard */
.diagnostic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
  margin-top: 18px;
}
.diagnostic-card {
  background: var(--surface);
  padding: 22px;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(45, 88, 128, 0.06);
  border: 1.5px solid rgba(120, 183, 255, 0.18);
  transition: border-color 0.25s ease;
}
.dark-mode .diagnostic-card {
  border-color: rgba(120, 183, 255, 0.1);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}
.diagnostic-card h3 {
  font-size: 1.1rem;
  color: var(--text);
  border-bottom: 2px solid var(--surface-soft);
  padding-bottom: 8px;
  margin-bottom: 14px;
  font-weight: 900;
}
.err-stat-pill {
  background: var(--surface-soft);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 800;
  font-size: 0.9em;
}
.err-stat-pill span {
  color: var(--danger);
  font-weight: 900;
  font-size: 1.15em;
}
.diag-skill-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.diag-skill-info {
  display: flex;
  justify-content: space-between;
  font-weight: 800;
  font-size: 0.88em;
}
.diag-skill-bar {
  height: 12px;
  background: var(--surface-soft);
  border-radius: 999px;
  overflow: hidden;
}
.diag-skill-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary-strong), var(--primary));
  transition: width 0.4s cubic-bezier(0.1, 0.8, 0.25, 1);
}
.history-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.history-item {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88em;
  font-weight: 800;
}
.history-success {
  color: var(--success);
}
.history-wrong {
  color: var(--danger);
}
@media (max-width: 768px) {
  .diagnostic-grid {
    grid-template-columns: 1fr !important;
  }
}