/* ========================================
   LESEFUCHS – READING ADVENTURE DESIGN SYSTEM
   ======================================== */

/* COLOR PALETTE */
:root {
  /* Primary */
  --color-primary: #b8411c;
  --color-primary-light: #f3c49a;
  --color-primary-dark: #873014;
  
  /* Secondary/Success */
  --color-success: #16804c;
  --color-success-light: #2fa86f;
  --color-success-dark: #0f5238;
  
  /* Neutral */
  --color-background: #f1eadb;
  --color-surface: #fffaf0;
  --color-surface-alt: #e9e4d4;
  --color-border: #c9c5ae;
  --color-text: #193e35;
  --color-text-secondary: #4f6255;
  --color-text-light: #526456;
  
  /* Status */
  --color-error: #bd4b24;
  --color-warning: #f4b860;
  --color-info: #2c5aa0;
  
  /* Spacings */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  
  /* Typography */
  --font-family-serif: Georgia, 'Times New Roman', serif;
  --font-family-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 32px;
  --font-size-4xl: 40px;
  
  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-normal: 300ms ease-out;
  --transition-slow: 500ms ease-out;
  
  /* Z-Index */
  --z-dropdown: 100;
  --z-modal: 200;
  --z-toast: 300;
  
  /* Reduce Motion Preference */
  --motion-safe: 1;
}

/* Prefers Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0ms;
    --transition-normal: 0ms;
    --transition-slow: 0ms;
    --motion-safe: 0;
  }
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-sans);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: var(--line-height-normal);
  overflow-x: visible;
}

/* Focus Visible for Accessibility */
:focus {
  outline: none;
}

:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background-color: var(--color-primary-light);
  color: white;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-serif);
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-md);
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--space-md);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* ========================================
   APP LAYOUT
   ======================================== */

.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--color-background);
}

.view {
  display: none;
  flex: 1;
  flex-direction: column;
  width: 100%;
  max-width: 100%;
  animation: slideIn var(--transition-normal) ease-out;
}

.view.active {
  display: flex;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   HEADER STYLES
   ======================================== */

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.logo-section {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.logo-emoji {
  font-size: 32px;
}

.logo-text {
  font-size: var(--font-size-2xl);
  font-family: var(--font-family-serif);
  color: var(--color-primary);
  margin: 0;
}

.header-actions {
  display: flex;
  gap: var(--space-sm);
}

.header-spacer {
  width: 48px;
}

.btn-icon {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.btn-icon:hover,
.btn-icon:focus-visible {
  background-color: var(--color-surface-alt);
}

.btn-back {
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  cursor: pointer;
  color: var(--color-primary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: background-color var(--transition-fast);
}

.btn-back:hover,
.btn-back:focus-visible {
  background-color: var(--color-surface-alt);
}

/* ========================================
   GAME HEADER
   ======================================== */

.game-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding: var(--space-lg);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.game-progress {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

#game-question-counter {
  font-weight: 700;
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  min-width: 40px;
}

.game-progress-bar {
  flex: 1;
  height: 8px;
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.game-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-success), var(--color-success-light));
  transition: width var(--transition-normal);
}

.game-stats {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.stat-badge {
  background-color: var(--color-primary-dark);
  color: white;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.btn-quit {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  background: #ffffff;
  color: #173f35;
  border: 2px solid #173f35;
  font-size: 24px;
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.btn-quit:hover,
.btn-quit:focus-visible {
  background-color: #e5f0e8;
  color: #173f35;
}

/* ========================================
   MAIN CONTENT
   ======================================== */

main {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.home-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

.game-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
}

/* ========================================
   CARDS & CONTAINERS
   ======================================== */

.hero-card {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  color: white;
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.hero-illustration {
  font-size: 64px;
  margin-bottom: var(--space-lg);
  display: inline-block;
  animation: float var(--transition-slow) ease-in-out infinite;
}

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

.hero-title {
  color: white;
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-md);
}

.hero-subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
  margin: 0;
}

.progress-card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-success);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
}

.progress-card h2 {
  color: var(--color-success);
  margin-top: 0;
}

.progress-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: 600;
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
}

.progress-bar {
  width: 100%;
  height: 12px;
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-success), var(--color-success-light));
  transition: width var(--transition-normal);
}

.progress-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-align: center;
  margin: 0;
}

/* ========================================
   BUTTONS
   ======================================== */

button {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  cursor: pointer;
  /* Keyboard outlines must be present on the first focused frame. */
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast), opacity var(--transition-fast);
  border: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  box-shadow: var(--shadow-md);
  display: inline-block;
  text-align: center;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-dark);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.btn-primary:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

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

.btn-secondary {
  background-color: var(--color-surface-alt);
  color: var(--color-text);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-border);
  box-shadow: var(--shadow-md);
}

/* ========================================
   TRAINING CARDS
   ======================================== */

.training-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.section-title {
  color: var(--color-text);
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
  margin-top: 0;
}

.training-card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: left;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.training-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.training-card:focus-visible {
  outline: 3px solid var(--color-primary);
}

.card-icon {
  font-size: 40px;
  flex-shrink: 0;
}

.training-card h3 {
  margin: 0 0 var(--space-sm) 0;
  color: var(--color-text);
}

.training-card p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.card-arrow {
  margin-left: auto;
  width: 22px;
  height: 2px;
  background: currentColor;
  position: relative;
  flex-shrink: 0;
}

.card-arrow::after {
  content: "";
  position: absolute;
  right: 0;
  top: -5px;
  width: 10px;
  height: 10px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
}

/* ========================================
   THEME WORLDS GRID
   ======================================== */

.theme-worlds-preview {
  width: 100%;
}

.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.theme-card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: center;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.theme-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.theme-card:focus-visible {
  outline: 3px solid var(--color-primary);
}

.theme-icon {
  font-size: 32px;
}

.theme-name {
  font-weight: 600;
  color: var(--color-text);
  font-size: var(--font-size-base);
}

.theme-progress {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ========================================
   MODE SELECTOR
   ======================================== */

.mode-selector-content {
  max-width: 900px;
  margin: 0 auto;
}

.difficulty-selector {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.difficulty-buttons {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.difficulty-btn {
  background-color: var(--color-surface-alt);
  color: var(--color-text);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.difficulty-btn:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
  color: white;
}

.difficulty-btn.active {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.modes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.mode-card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.mode-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.mode-card:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.mode-icon {
  font-size: 48px;
}

.mode-card h3 {
  margin: 0 0 var(--space-sm) 0;
  color: var(--color-text);
}

.mode-card p {
  margin: 0 0 var(--space-md) 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.mode-info {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  background-color: var(--color-surface-alt);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
}

.mode-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ========================================
   GAME CARD
   ======================================== */

.game-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  width: 100%;
}

.game-instruction {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: var(--space-xl);
}

.game-word-display {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  text-align: center;
  color: var(--color-primary);
  margin-bottom: var(--space-xl);
}

.game-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.game-option {
  background-color: var(--color-surface-alt);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-fast);
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.game-option:hover:not(.disabled) {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
  color: white;
  transform: scale(1.05);
}

.game-option.selected {
  background-color: var(--color-success);
  color: white;
  border-color: var(--color-success);
}

.game-option.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.game-feedback {
  text-align: center;
  font-size: var(--font-size-lg);
  font-weight: 600;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.game-feedback.correct {
  background-color: var(--color-success-light);
  color: white;
}

.game-feedback.incorrect {
  background-color: var(--color-error);
  color: white;
}

.game-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
}

/* ========================================
   RESULTS VIEW
   ======================================== */

.results-content {
  max-width: 600px;
  margin: 0 auto;
}

.results-celebration {
  text-align: center;
  margin-bottom: var(--space-2xl);
  padding: var(--space-2xl);
  background: linear-gradient(135deg, var(--color-success-light), var(--color-primary-light));
  border-radius: var(--radius-xl);
  color: white;
}

.celebration-emoji {
  font-size: 64px;
  display: block;
  margin-bottom: var(--space-md);
  animation: bounce var(--transition-normal) ease-out;
}

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

.results-title {
  font-size: var(--font-size-3xl);
  color: white;
  margin: 0;
}

.results-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.result-stat-card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
}

.result-stat-card h2 {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  margin-top: 0;
  margin-bottom: var(--space-md);
}

.big-number {
  font-size: var(--font-size-3xl);
  font-weight: 900;
  color: var(--color-primary);
  margin: 0;
}

.results-achievements {
  margin-bottom: var(--space-2xl);
}

.achievement-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background-color: var(--color-warning);
  color: white;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  margin: var(--space-sm);
  font-size: var(--font-size-sm);
}

.results-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* ========================================
   LEADERBOARD
   ======================================== */

.leaderboard-content {
  max-width: 700px;
  margin: 0 auto;
}

.leaderboard-tabs {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  border-bottom: 2px solid var(--color-border);
}

.leaderboard-tab {
  background: none;
  border: none;
  padding: var(--space-md) var(--space-lg);
  font-weight: 600;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-fast);
}

.leaderboard-tab:hover,
.leaderboard-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.leaderboard-table {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.leaderboard-row {
  display: grid;
  grid-template-columns: 50px 1fr 80px;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  align-items: center;
}

.leaderboard-row:last-child {
  border-bottom: none;
}

.leaderboard-rank {
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--color-primary);
}

.leaderboard-entry-name {
  color: var(--color-text);
  font-weight: 600;
}

.leaderboard-entry-value {
  text-align: right;
  font-weight: 700;
  color: var(--color-success);
  font-size: var(--font-size-lg);
}

.personal-summary {
  margin-top: var(--space-2xl);
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-md);
}

.summary-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-md);
}

.summary-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-weight: 600;
}

.summary-value {
  font-size: var(--font-size-2xl);
  font-weight: 900;
  color: var(--color-primary);
}

/* UI-001f: the playable board and saved result reflow independently. */
#view-leaderboard .summary-value { color: var(--color-text); }
#view-leaderboard .btn-back { color: var(--color-text); }
#view-memory .memory-shell { width: 100%; min-width: 0; overflow-wrap: anywhere; }
#view-memory .memory-controls select { width: 100%; min-width: 0; }
#view-memory .memory-card { min-height: 6rem; aspect-ratio: auto; overflow-wrap: anywhere; }
#view-memory .memory-card strong { font-size: 1rem; }
#view-memory .memory-card small { font-size: .75rem; max-width: 100%; }
#view-memory .memory-card img { width: min(80%, 6rem); height: 5rem; }
#view-memory button, #view-memory select { min-height: 44px; min-width: 44px; max-width: 100%; white-space: normal; overflow-wrap: anywhere; }
#view-memory .memory-result-actions { display: flex; flex-wrap: wrap; gap: var(--space-md); }
#view-memory .memory-result-actions button { flex: 1 1 12rem; }
@media (max-width: 600px) {
  #view-memory .memory-board { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ========================================
   QUICK LINKS
   ======================================== */

.quick-links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
}

.quick-link {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.quick-link:hover {
  background-color: var(--color-primary-light);
  color: white;
  border-color: var(--color-primary);
}

/* ========================================
   FOOTER
   ======================================== */

.app-footer {
  text-align: center;
  padding: var(--space-lg);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.app-footer p {
  margin: var(--space-sm) 0;
}

.footer-badge {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

/* ========================================
   SETTINGS VIEW
   ======================================== */

.settings-content {
  max-width: 600px;
  margin: 0 auto;
}

.settings-group {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.settings-group h2 {
  margin-top: 0;
  color: var(--color-primary);
}

.settings-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  cursor: pointer;
  user-select: none;
}

.settings-toggle input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.settings-link {
  display: block;
  padding: var(--space-md) 0;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.settings-link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.settings-group.legal {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* Settings is one readable surface; optional file operations stay secondary. */
#view-settings .settings-content { max-width: 44rem; overflow-wrap: anywhere; }
#view-settings .settings-group { min-width: 0; padding: clamp(14px, 3vw, 28px); }
#view-settings h2 { color: var(--color-text); font-size: var(--font-size-xl); }
#view-settings h3 { font-size: 1.1rem; margin: var(--space-lg) 0 var(--space-sm); }
#view-settings p { line-height: var(--line-height-normal); margin-bottom: var(--space-md); }
#view-settings button, #view-settings input, #view-settings summary, #view-settings .settings-link, #view-settings .settings-toggle { min-height: 44px; }
#view-settings .settings-toggle input { min-height: 20px; flex: 0 0 20px; }
#view-settings .settings-range { display: grid; gap: var(--space-sm); }
#view-settings input { font: inherit; color: var(--color-text); max-width: 100%; min-width: 0; width: 100%; }
#view-settings button { max-width: 100%; white-space: normal; overflow-wrap: anywhere; font: inherit; }
#view-settings .settings-content button { width: 100%; margin-bottom: var(--space-sm); }
#view-settings .settings-details { border-top: 1px solid var(--color-border); margin: var(--space-md) 0; padding-top: var(--space-sm); }
#view-settings summary { align-content: center; cursor: pointer; font-weight: 700; }
#view-settings label:not(.settings-toggle) { display: block; margin: var(--space-sm) 0; }
#view-settings :is(button, input, summary, a):focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
#view-settings .app-header { flex-wrap: wrap; gap: var(--space-sm); }
#view-settings .app-header h1 { overflow-wrap: anywhere; }
#view-settings .header-spacer { display: none; }

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
  :root {
    --font-size-base: 16px;
  }

  main {
    padding: var(--space-md);
  }

  .app-header {
    padding: var(--space-md);
  }

  .theme-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .modes-grid {
    grid-template-columns: 1fr;
  }

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

  .card-arrow {
    margin-left: 0;
  }

  .results-stats {
    grid-template-columns: 1fr;
  }

  .game-options {
    grid-template-columns: repeat(2, 1fr);
  }

  .leaderboard-tabs {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: var(--font-size-2xl);
  }

  .theme-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .game-word-display {
    font-size: var(--font-size-3xl);
  }

  .game-options {
    grid-template-columns: 1fr;
  }

  .progress-stats {
    grid-template-columns: 1fr;
  }

  .quick-links {
    flex-direction: column;
  }

  .quick-link {
    width: 100%;
  }

  .results-actions {
    width: 100%;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
  }

  .logo-text {
    font-size: var(--font-size-xl);
  }
}

/* ========================================
   ACCESSIBILITY OVERRIDES
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-contrast: more) {
  :root {
    --color-primary: #800000;
    --color-success: #006600;
  }
}

/* High Contrast Mode Support */
@media (forced-colors: active) {
  button {
    border: 2px solid;
  }

  .game-option:hover {
    forced-color-adjust: none;
  }
}

/* ===== 0.3.0 Integration: Spielansicht, Zustände, Barrierefreiheit ===== */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.hidden { display: none !important; }
.app-status:empty { display: none; }
.app-status { margin: var(--space-md); padding: var(--space-md); border-radius: var(--radius-md); background: #fde8e4; color: #7a1d0c; font-weight: 600; text-align: center; }
#connection-feedback { max-width: 60rem; margin-inline: auto; overflow-wrap: anywhere; }
#sync-status { text-align: left; line-height: var(--line-height-normal); }
#sync-status:is([data-state="pending"], [data-state="syncing"]) { background: var(--color-surface-alt); color: var(--color-text); border: 1px solid var(--color-border); }
#sync-retry { display: block; min-height: 44px; width: calc(100% - 32px); margin: var(--space-md); padding: var(--space-sm); white-space: normal; font: inherit; transition: none; }
#sync-retry[hidden] { display: none; }
#sync-retry:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
.progress-fill, .game-progress-fill { width: 0; }

.mode-card.selected, .mode-card[aria-pressed="true"] {
  border-color: var(--color-primary-dark);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.mode-card:disabled, .difficulty-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.mode-selector-hint { min-height: 1.5em; text-align: center; color: var(--color-text-secondary); font-weight: 600; }

.game-mode-label { text-align: center; color: var(--color-text-secondary); font-size: var(--font-size-sm); margin-bottom: var(--space-sm); }
.game-instruction:focus { outline: none; }
.game-picture { font-size: 96px; line-height: 1.1; text-align: center; margin: var(--space-md) 0 var(--space-lg); }
.option-picture { display: block; font-size: 48px; line-height: 1.1; }
.option-text { display: block; margin-top: var(--space-xs); }
.btn-audio { display: block; margin: 0 auto var(--space-lg); }

.game-option:disabled { cursor: default; }
.game-option.correct { border-color: var(--color-success-dark); background-color: #dff3e8; color: #0b4d2c; }
.game-option.incorrect { border-color: #a3260f; background-color: #fde8e4; color: #7a1d0c; }
.game-feedback:empty { display: none; }
.game-feedback.correct { background-color: #dff3e8; color: #0b4d2c; }
.game-feedback.incorrect { background-color: #fde8e4; color: #7a1d0c; }

.build-answer {
  display: flex; flex-wrap: wrap; gap: var(--space-sm); justify-content: center; align-items: center;
  min-height: 64px; padding: var(--space-md); margin-bottom: var(--space-lg);
  border: 2px dashed var(--color-border); border-radius: var(--radius-md);
}
.build-placeholder { color: var(--color-text-secondary); }
.build-chip {
  padding: var(--space-sm) var(--space-md); border-radius: var(--radius-sm);
  background: var(--color-surface-alt); border: 2px solid var(--color-primary-dark);
  font-size: var(--font-size-xl); font-weight: 700;
}
.build-tools { display: flex; gap: var(--space-md); justify-content: center; margin: var(--space-lg) 0; }

.leaderboard-list { list-style: none; margin: 0; padding: 0; }
.leaderboard-empty { text-align: center; padding: var(--space-xl); }
.about-list { padding-left: var(--space-lg); line-height: var(--line-height-relaxed); }

.reduce-motion *, .reduce-motion *::before, .reduce-motion *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* Überschriften-Hierarchie korrigiert (h3 -> h2), Optik wie bisher */
.progress-card h2, .difficulty-selector h2, .result-stat-card h2, .personal-summary h2, .settings-group h2, .training-options > h2:not(.section-title), .theme-worlds-preview > h2:not(.section-title) {
  font-size: var(--font-size-xl);
}

.training-card h3, .mode-card h3 { font-size: var(--font-size-lg); }


/* ===== Vorlesemodus ===== */
.reader-content { display: grid; gap: var(--space-lg); padding: var(--space-lg); max-width: 1100px; margin: 0 auto; }
#view-reader .reader-content { grid-template-columns: minmax(0, 1fr); max-width: 900px; }
#view-reader [hidden] { display: none !important; }
#view-reader button, #view-reader input { min-width: 44px; min-height: 44px; }
#view-reader .btn-primary { background: var(--color-primary-dark); color: #fff; }
#view-reader .btn-back { color: var(--color-text); }
#view-reader button, #view-reader summary { transition: none; }
#view-reader { overflow-wrap: anywhere; }
#view-reader .reader-content > *, #view-reader .reader-setting { min-width: 0; }
#view-reader button, #view-reader input { max-width: 100%; }
#view-reader #reader-audio-settings { margin-block: var(--space-md); }
#view-reader #reader-audio-settings summary { min-height: 44px; padding: var(--space-sm); font-weight: 700; cursor: pointer; border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
#view-reader #reader-audio-settings .reader-settings { padding-top: var(--space-md); }
@media (forced-colors: active) {
  #view-reader .reader-filter-btn[aria-pressed="true"] { color: ButtonText; background: ButtonFace; border: 4px double ButtonText; }
}
.reader-library, .reader-story { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-lg); }
.reader-library h2 { font-size: var(--font-size-xl); margin-bottom: var(--space-md); }
.reader-filter { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-bottom: var(--space-md); }
.reader-filter-btn { min-height: 44px; padding: var(--space-xs) var(--space-md); border-radius: var(--radius-sm); border: 2px solid var(--color-border); background: var(--color-surface-alt); color: var(--color-text); font-weight: 600; cursor: pointer; }
.reader-filter-btn.active, .reader-filter-btn[aria-pressed="true"] { border-color: var(--color-primary-dark); background: var(--color-primary-dark); color: #fff; }
.reader-story-list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-sm); }
.reader-story-btn { width: 100%; min-height: 44px; text-align: left; padding: var(--space-md); border: 2px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-alt); color: var(--color-text); cursor: pointer; }
.reader-story-btn[aria-current="true"] { border-color: var(--color-primary-dark); box-shadow: 0 0 0 3px var(--color-primary-light); }
.reader-story-title { display: block; font-weight: 700; }
.reader-story-meta { display: block; font-size: var(--font-size-sm); color: var(--color-text-secondary); margin-top: 2px; }
.reader-filter-btn:focus-visible, .reader-story-btn:focus-visible, .reader-controls button:focus-visible, #reader-rate:focus-visible, #reader-voice:focus-visible { outline: 3px solid var(--color-info); outline-offset: 2px; }
.reader-meta, .reader-progress { color: var(--color-text-secondary); }
.reader-progress { min-height: 1.5em; margin: 0; }
.reader-controls { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin: var(--space-md) 0; }
.reader-controls button { min-height: 48px; }
.reader-controls button:disabled { opacity: 0.5; cursor: not-allowed; }
.reader-settings { display: flex; flex-wrap: wrap; gap: var(--space-lg); margin-bottom: var(--space-md); }
.reader-setting { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-sm); }
.reader-setting label { font-weight: 700; }
#reader-rate { width: 160px; min-height: 44px; accent-color: var(--color-primary-dark); }
#reader-voice { min-height: 44px; max-width: 100%; padding: var(--space-xs) var(--space-sm); border: 2px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-text); font: inherit; }
.reader-hint { font-size: var(--font-size-sm); color: var(--color-text-secondary); }
.reader-status { min-height: 1.5em; font-weight: 600; margin: 0 0 var(--space-xs); }
.reader-text { font-size: 1.35rem; line-height: 1.9; max-width: 65ch; }
.reader-text p { margin: 0 0 var(--space-lg); }
.reader-seg { border-radius: 4px; padding: 2px 0; transition: background-color var(--transition-fast); }
.reader-seg.is-reading { background-color: #ffe7a3; color: #2b1a00; box-shadow: 0 0 0 3px #ffe7a3; text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 4px; }
@media (max-width: 480px) { .reader-content { padding: var(--space-sm); } .reader-text { font-size: 1.2rem; } .reader-controls button { flex: 1 1 calc(50% - var(--space-sm)); } }

/* Product components use the single light palette above. */
.app-container { background: transparent; }
.view { animation: none; }
.app-header {
  position: sticky; top: 0; z-index: 30; min-height: 72px;
  backdrop-filter: blur(14px); background: rgba(255,255,255,.94);
}
.home-content, .mode-selector-content, .leaderboard-content, .settings-content { width: min(1120px, calc(100% - 32px)); margin-inline: auto; }
.home-content { padding: 32px 0 56px; gap: 32px; }
.icon-svg, .logo-symbol, .hero-symbol { display: block; flex: 0 0 auto; }
.logo-symbol { width: 42px; height: 42px; }
.hero-symbol { width: 92px; height: 92px; margin-inline: auto; }
.card-icon { width: 52px; height: 52px; }
.mode-icon { width: 64px; height: 64px; margin-inline: auto; }
.celebration-emoji { width: 76px; height: 76px; margin-inline: auto; }
.btn-quiet {
  min-height: 44px; padding: 8px 12px; border: 1px solid var(--color-border);
  border-radius: 999px; background: var(--color-surface); color: var(--color-text); font-weight: 750;
}
.btn-quiet:hover, .btn-quiet:focus-visible { background: var(--color-surface-alt); }

.auth-area { position: relative; }
.btn-auth {
  min-height: 44px; padding: 8px 16px; border-radius: 999px;
  background: #edf7f2; color: var(--color-success-dark); font-weight: 800;
  border: 2px solid #c4e1d3;
}
.auth-menu {
  position: absolute; right: 0; top: calc(100% + 10px); width: min(300px, 85vw);
  padding: 16px; border-radius: 16px; background: white; border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg); display: grid; gap: 10px;
}
.auth-menu p { margin: 0 0 4px; color: var(--color-text-secondary); }
.auth-provider {
  display: block; width: 100%; min-height: 44px; padding: 10px 14px; text-align: center;
  border-radius: 12px; background: var(--color-surface-alt); color: var(--color-text);
  border: 1px solid var(--color-border); font-weight: 750;
}

.hero-card {
  position: relative; overflow: hidden; min-height: 250px; display: grid; place-content: center;
  background: linear-gradient(135deg, #de6234 0%, #b53b1c 62%, #7f2d19 100%);
}
.hero-card::after { content: none; }
.hero-illustration { animation: none; }
.progress-card { border: 0; box-shadow: var(--shadow-md); }

.training-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.training-options > .section-title { grid-column: 1 / -1; }
.training-card { min-height: 118px; border-width: 1px; box-shadow: var(--shadow-sm); }
.training-card:hover { transform: translateY(-3px); }
.training-card h3 { margin-bottom: 4px; }

.theme-grid { grid-template-columns: repeat(5, minmax(120px, 1fr)); }
.theme-card { min-height: 142px; border-width: 1px; }
.theme-svg { width: 54px; height: 54px; }

.difficulty-selector, .game-card, .leaderboard-table, .personal-summary, .settings-group { border: 1px solid var(--color-border); box-shadow: var(--shadow-sm); }
.game-content { padding: 28px 16px 56px; }
.game-card { width: min(760px, 100%); padding: clamp(20px, 5vw, 44px); }
.game-support { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin: -8px 0 22px; }
.game-support .btn-secondary { padding: 10px 14px; }
.game-feedback.hint { background: #fff6d8; border: 1px solid #e6c85f; color: #57440b; }
.game-picture-art { display: block; width: min(180px, 48vw); height: min(180px, 48vw); object-fit: contain; margin: 12px auto 28px; }
.option-picture-art { display: block; width: 88px; height: 88px; object-fit: contain; margin: 0 auto; }
.game-option { min-height: 68px; }

.reader-library, .reader-story { box-shadow: var(--shadow-sm); }
.reader-fixed-voice { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 14px; border-radius: 12px; background: #edf7f2; color: var(--color-success-dark); }
#reader-volume, #audio-volume { accent-color: var(--color-primary); min-height: 44px; }
.reader-quiz { margin-top: 32px; padding-top: 28px; border-top: 2px solid var(--color-border); }
.reader-quiz h3 { font-size: 1.35rem; }
.reader-quiz-question { font-size: 1.15rem; font-weight: 800; }
.reader-quiz-options { display: grid; gap: 10px; margin: 16px 0; }
.reader-quiz-option { min-height: 52px; padding: 12px 16px; text-align: left; border-radius: 12px; background: var(--color-surface-alt); border: 2px solid var(--color-border); color: var(--color-text); font-weight: 700; }
.reader-quiz-option.correct { background: #dff3e8; border-color: var(--color-success); }
.reader-quiz-option.incorrect { background: #fde8e4; border-color: var(--color-error); }
.reader-quiz-feedback { min-height: 1.5em; font-weight: 700; }
.reader-quiz-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.settings-range { display: grid; grid-template-columns: 1fr minmax(160px, 260px) 64px; gap: 14px; align-items: center; }
.mastery-summary { font-size: 1.2rem; font-weight: 800; }
.mastery-levels { display: grid; gap: 8px; padding-left: 22px; }

@media (max-width: 860px) {
  .theme-grid { grid-template-columns: repeat(3, minmax(110px, 1fr)); }
  .app-header { padding-inline: 16px; }
  .header-actions { align-items: center; }
}

@media (max-width: 600px) {
  .home-content, .mode-selector-content, .leaderboard-content, .settings-content { width: min(100% - 20px, 1120px); }
  .home-content { padding-top: 14px; gap: 22px; }
  .hero-card { min-height: 210px; padding: 28px 18px; }
  .hero-illustration { font-size: 50px; margin-bottom: 10px; }
  .hero-title { font-size: 1.75rem; }
  .training-options { grid-template-columns: 1fr; }
  .training-card { min-height: 96px; padding: 16px; gap: 14px; }
  .theme-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .theme-card { min-height: 120px; }
  .progress-stats { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .stat-value { font-size: 1.35rem; }
  .game-header { padding: 14px 16px; }
  .game-card { border-radius: 22px; }
  .game-options { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .game-option { padding: 12px 8px; }
  .option-picture-art { width: 68px; height: 68px; }
  .btn-primary, .btn-secondary { width: auto; min-height: 48px; }
  .settings-range { grid-template-columns: 1fr; gap: 4px; }
  .logo-text { font-size: 1.25rem; }
  .logo-symbol { width: 34px; height: 34px; }
  .btn-quiet { padding-inline: 9px; font-size: .82rem; }
}

@media (max-width: 380px) {
  .game-options { grid-template-columns: 1fr; }
  .auth-menu { right: -44px; }
}

/* Dark mode keeps the same semantic palette so existing components adapt via
   variables. It intentionally does not use forced-color-adjust: the
   forced-colors rules above remain in control for system high-contrast modes. */
@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #bd4f2b;
    --color-primary-light: #e47b58;
    --color-primary-dark: #8d3219;

    --color-success: #2f9d6d;
    --color-success-light: #67c493;
    --color-success-dark: #1c6b4b;

    --color-background: #121a17;
    --color-surface: #1c2723;
    --color-surface-alt: #26332e;
    --color-border: #52645c;
    --color-text: #f2f7f3;
    --color-text-secondary: #c3d0c9;
    --color-text-light: #d7e1db;

    --color-error: #e6734e;
    --color-warning: #f6c453;
    --color-info: #91b8f3;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.32);
    --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.42);
    --shadow-lg: 0 18px 46px rgba(0, 0, 0, 0.52);
  }
}

/* #btn-ranking: white on the former light orange hover failed text contrast. */
#btn-ranking:hover, #btn-ranking:focus-visible, #btn-ranking:active { background-color: #8b2c0f; color: #fff; border-color: #8b2c0f; }
#btn-ranking:focus-visible { outline: 3px solid #173f35; outline-offset: 3px; }
#btn-ranking:disabled { background: #eee9dd; color: #59665d; border-color: #b6bdb5; cursor: not-allowed; }

/* UI-001g: a shared reading shell for help and public information drafts.
   Semantic link/focus roles follow both palettes and existing cache authority. */
:root { --color-link: var(--color-info); --color-focus: var(--color-text); --measure-information: 46rem; }
.information-page { background: var(--color-background); overflow-x: visible; }
.information-header, #view-about .app-header { position: static; display: flex; flex-wrap: wrap; gap: var(--space-md); padding: var(--space-md); align-items: center; background: var(--color-surface); color: var(--color-text); border: 1px solid var(--color-border); backdrop-filter: none; }
.information-header { max-width: var(--measure-information); margin: var(--space-md) auto; }
.information-header .brand { display: inline-flex; align-items: center; gap: var(--space-sm); font-weight: 750; }
.information-header .logo { flex: 0 0 auto; width: 1.75rem; height: 1.75rem; }
#view-about .app-header h1 { flex: 1 1 14rem; min-width: 0; margin: 0; }
#view-about .header-spacer { display: none; }
#view-about .information-content, .information-page .legal-page { width: 100%; max-width: var(--measure-information); margin: var(--space-md) auto; }
.information-page .legal-page { padding: var(--space-md); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); }
#view-about, .information-page { min-width: 0; font-size: 1rem; overflow-wrap: anywhere; line-height: var(--line-height-relaxed); }
#view-about h1, .information-page h1 { font-size: 1.75rem; }
#view-about h2, .information-page h2 { font-size: 1.35rem; margin-block: var(--space-lg) var(--space-sm); }
#view-about h3, .information-page h3 { font-size: 1.1rem; }
#view-about .settings-group { padding: var(--space-md); min-width: 0; }
#view-about .settings-group h2:first-child { margin-top: 0; }
#view-about li, .information-page li { margin-block: var(--space-sm); }
.information-page ul { padding-inline-start: 1.25rem; }
.information-page code { font-size: 1em; }
.information-page .draft-label { padding: var(--space-md); background: var(--color-surface-alt); color: var(--color-text); border-inline-start: 4px solid var(--color-text); font-weight: 750; }
.information-actions { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-sm); margin-block: var(--space-md); }
#view-about button { min-width: 44px; min-height: 44px; max-width: 100%; font: inherit; padding: var(--space-sm) var(--space-md); text-align: left; color: var(--color-text); background: var(--color-surface); border: 1px solid var(--color-border); box-shadow: none; transition: none; }
#view-about button:hover, #view-about button:focus-visible { color: var(--color-text); background: var(--color-surface-alt); transform: none; }
#settings-about, #settings-about:hover, #settings-about:focus-visible { color: var(--color-text); }
#help-settings { margin-bottom: var(--space-md); }
.information-page a { display: inline-block; min-width: 44px; min-height: 44px; max-width: 100%; padding-block: var(--space-sm); color: var(--color-link); text-decoration: underline; text-underline-offset: .2em; }
.information-page a:hover, .information-page a:focus-visible { color: var(--color-text); background: var(--color-surface-alt); }
.information-page .information-return { padding: var(--space-sm) var(--space-md); border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.information-page :focus-visible, #view-about :focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
@media (min-width: 700px) { .information-actions { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* UI-001b: A finished chapter: the actual round, then one real continuation. */
#view-results { min-width: 0; }
#view-results .app-header { position: static; padding: var(--space-md); border-radius: var(--radius-lg); }
#view-results h1 { margin: 0; font-size: 1.5rem; overflow-wrap: anywhere; }
#view-results .results-content { width: 100%; max-width: 42rem; min-width: 0; padding-block: var(--space-md); }
#view-results .learning-context, #results-scope { font-size: .9rem; color: var(--color-text-secondary); overflow-wrap: anywhere; }
#view-results .results-celebration { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 8px 16px; align-items: center; padding: 24px 20px; margin-bottom: 16px; border-radius: 24px 24px 8px 8px; background: #204d40; color: #fff5dc; border: 1px solid var(--color-border); text-align: left; }
#view-results .result-buddy { grid-column: 1; grid-row: 1 / 3; width: 64px; height: 64px; padding: 4px; background: #fff5dc; border-radius: 50%; }
#results-title { font-size: 1.75rem; margin: 0; overflow-wrap: anywhere; }
#results-summary { margin: 0; font-size: 1.15rem; font-weight: 750; min-width: 0; overflow-wrap: anywhere; }
#view-results .results-stats { grid-template-columns: repeat(auto-fit, minmax(min(100%, 5rem), 1fr)); gap: var(--space-sm); margin-bottom: var(--space-lg); }
#view-results .result-stat-card { min-width: 0; padding: 16px 8px; box-shadow: 0 4px 0 var(--color-surface-alt); border: 1px solid var(--color-border); border-radius: 8px 8px 18px 18px; }
#view-results .result-stat-card h2 { font: inherit; font-size: .9rem; margin-bottom: var(--space-sm); overflow-wrap: anywhere; }
#view-results .big-number { font-size: 2rem; }
#view-results .results-actions { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-sm); }
#results-next-description { margin: 0; overflow-wrap: anywhere; }
#view-results .results-actions button { width: 100%; font: inherit; min-width: 44px; min-height: 48px; font-weight: 750; box-shadow: none; transition: none; overflow-wrap: anywhere; }
#view-results .results-actions button:hover { transform: none; }
#view-results .results-actions .btn-secondary { background: var(--color-surface); }
#view-results .results-achievements { margin: var(--space-lg) 0 0; }
#view-results .achievement-badge { color: var(--color-text); background: var(--color-surface-alt); border: 1px solid var(--color-border); font-size: 1rem; margin: var(--space-xs); }
#view-results button:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
@media (forced-colors: active) {
  #view-results .results-celebration { background: Canvas; color: CanvasText; border: 2px solid CanvasText; }
}

/* Reading page: forest binding, clear paper stage and generous answer tiles. */
#view-game { min-width: 0; }
#view-game .game-header { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px 16px; padding: 20px; border-radius: 24px 24px 8px 8px; background: #204d40; color: #fff5dc; box-shadow: none; }
#view-game .learning-context { grid-column: 1 / -1; margin: 0; color: #e2ebdf; font-size: .9rem; overflow-wrap: anywhere; }
#view-game .game-progress { min-width: 0; grid-column: 1; grid-row: 2; }
#view-game #game-question-counter { color: #fff5dc; }
#view-game .btn-quit { position: static; grid-column: 2; grid-row: 2; font: inherit; min-width: 44px; min-height: 44px; padding: var(--space-sm); border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text); }
#view-game .game-stats { grid-column: 1 / -1; justify-content: flex-start; gap: var(--space-sm); }
#view-game .stat-badge { font-size: .85rem; padding: 4px 8px; color: #e2ebdf; background: #204d40; border: 1px solid #80977b; }
#view-game .game-content { padding: var(--space-md) 0 var(--space-lg); gap: var(--space-md); }
#view-game .game-card { max-width: 54rem; min-width: 0; padding: 24px 20px; border: 1px solid var(--color-border); border-inline-start: 5px solid var(--color-text); border-radius: 8px 24px 24px 8px; box-shadow: 0 6px 0 var(--color-surface-alt), 0 7px 0 var(--color-border); }
#view-game .game-mode-label { font: 750 .75rem/1.5 var(--font-family-sans); letter-spacing: .12em; color: var(--color-text-secondary); text-transform: uppercase; text-align: left; margin: 0 0 12px; }
#view-game .game-instruction { color: var(--color-text); font-size: 1.65rem; line-height: 1.25; text-align: left; margin: 0 0 20px; overflow-wrap: anywhere; }
#view-game .game-support { justify-content: flex-start; margin: 0 0 var(--space-md); gap: var(--space-sm); }
#view-game button { font-size: 1rem; min-width: 44px; min-height: 44px; max-width: 100%; overflow-wrap: anywhere; transition: none; }
#view-game .game-support button { font-size: .9rem; padding: var(--space-sm); }
#view-game .game-picture-art { width: min(176px, 100%); height: 176px; padding: 12px; margin: 20px auto 28px; background: var(--color-surface-alt); border-radius: 50% 50% 40% 45%; }
#view-game .game-word-display { font-size: 2rem; overflow-wrap: anywhere; }
#view-game .game-options { grid-template-columns: repeat(auto-fit, minmax(min(100%, 9rem), 1fr)); gap: var(--space-sm); margin-bottom: var(--space-md); }
#view-game .game-option { min-width: 0; min-height: 64px; color: var(--color-text); background: var(--color-surface); font-size: 1.125rem; font-weight: 750; border-radius: 14px; border: 2px solid var(--color-border); box-shadow: 0 3px 0 var(--color-surface-alt); }
#view-game .game-option:hover:not(:disabled) { transform: none; background: var(--color-surface); color: var(--color-text); border-color: var(--color-primary-dark); }
#view-game .game-option.selected, #view-game .game-option.selected:hover { background: var(--color-text); color: var(--color-surface); border-color: var(--color-text); transform: none; }
#view-game .game-option.disabled { opacity: 1; }
#view-game .game-option.correct { color: #193e35; background: #dcebd6; border-color: #315c3e; }
#view-game .game-option.incorrect { color: #713113; background: #f8e7ce; border-color: #873014; }
#view-game .game-feedback { text-align: left; font-size: 1rem; line-height: var(--line-height-normal); }
#view-game .game-feedback:empty { display: none; }
#view-game .game-feedback.correct { color: #193e35; background: #dcebd6; border: 1px solid #315c3e; }
#view-game .game-feedback.incorrect { color: #713113; background: #f8e7ce; border: 1px solid #873014; }
#view-game .feedback-guidance { margin: var(--space-sm) 0 0; font-weight: 400; }
#view-game .game-actions button { width: 100%; font: inherit; font-weight: 750; }
#view-game button:focus-visible, #view-game .game-instruction:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
@media (min-width: 700px) {
  #view-game .game-card { padding: 32px; }
  #view-game .game-card[data-mode="picture_word"] { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); column-gap: 32px; }
  #view-game .game-card[data-mode="picture_word"] > :is(.game-mode-label, .game-instruction, .game-support, .game-feedback, .game-actions) { grid-column: 1 / -1; }
  #view-game .game-card[data-mode="picture_word"] > .game-picture-art { width: 220px; height: 220px; align-self: center; }
  #view-game .game-card[data-mode="picture_word"] > .game-options { grid-template-columns: minmax(0, 1fr); border-inline-start: 1px solid var(--color-border); padding-inline-start: 24px; }
}

@media (forced-colors: active) {
  #view-game .game-header, #view-game .learning-context, #view-game #game-question-counter, #view-game .stat-badge { color: CanvasText; background: Canvas; }
  #view-game .game-option.selected, #view-game .game-option.correct, #view-game .game-option.incorrect, #view-game .game-feedback { color: CanvasText; background: Canvas; border-color: CanvasText; }
}

/* Activity shelf: illustrated covers, then a clear level/length choice. */
#view-mode-selector { min-width: 0; }
#view-mode-selector .app-header { position: static; flex-wrap: wrap; gap: var(--space-sm); }
#view-mode-selector .app-header h1 { flex: 1 1 12rem; min-width: 0; margin: 0; font-size: 1.5rem; overflow-wrap: anywhere; }
#view-mode-selector .header-spacer { display: none; }
#view-mode-selector .btn-back { font: inherit; min-width: 44px; min-height: 44px; color: var(--color-text); }
#view-mode-selector .mode-selector-content { width: 100%; max-width: 54rem; padding: 24px 0; }
#view-mode-selector h2, #view-mode-selector legend { font: inherit; font-weight: 750; margin-bottom: var(--space-sm); }
#view-mode-selector .modes-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr)); gap: 12px; margin-block: 16px 32px; }
#view-mode-selector .mode-card { position: relative; display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px; padding: 14px; text-align: left; align-content: start; align-items: start; border: 1px solid var(--color-border); border-radius: 20px 20px 6px 6px; box-shadow: 0 4px 0 var(--color-surface-alt); transition: none; color: var(--color-text); }
#view-mode-selector .mode-card:hover { transform: none; border-color: var(--color-text); background: var(--color-surface-alt); }
#view-mode-selector .mode-card.selected { border: 3px solid var(--color-text); padding: 12px; background: var(--color-surface-alt); box-shadow: 0 4px 0 var(--color-text); }
#view-mode-selector .mode-icon { grid-row: auto; width: 32px; height: 32px; margin: 0 0 2px; }
#view-mode-selector .mode-card h3 { font: inherit; font-weight: 750; margin: 0; overflow-wrap: anywhere; }
#view-mode-selector .mode-card p { font-size: .875rem; line-height: 1.35; margin: 0; color: var(--color-text-secondary); overflow-wrap: anywhere; }
#view-mode-selector .mode-info { display: none; }
#view-mode-selector .difficulty-selector { padding: 20px; border: 1px solid var(--color-border); border-radius: 18px; background: var(--color-surface); box-shadow: none; min-width: 0; margin-bottom: 24px; }
#view-mode-selector .difficulty-buttons { gap: var(--space-sm); }
#view-mode-selector .difficulty-btn { min-width: 44px; min-height: 44px; padding: var(--space-sm) var(--space-md); font: inherit; overflow-wrap: anywhere; max-width: 100%; }
#view-mode-selector .difficulty-btn:hover:not(.active) { color: var(--color-text); background: var(--color-surface); }
#view-mode-selector .round-size-group { margin: 0 0 var(--space-lg); }
#view-mode-selector .round-size-options { grid-template-columns: minmax(0, 1fr); gap: var(--space-sm); }
#view-mode-selector .round-size-option { min-width: 0; min-height: 48px; padding: var(--space-sm) var(--space-md); border-color: var(--color-border); background: var(--color-surface); color: var(--color-text); }
#view-mode-selector .round-size-option span { overflow-wrap: anywhere; }
#view-mode-selector .round-size-option:has(input:checked) { border-color: var(--color-text); box-shadow: inset 0 0 0 1px var(--color-text); background: var(--color-surface-alt); }
#view-mode-selector .round-size-option input { accent-color: var(--color-text); }
#view-mode-selector .learning-summary { padding: 20px; background: var(--color-surface-alt); border-inline-start: 4px solid var(--color-text); border-radius: 0 12px 12px 0; font-weight: 750; overflow-wrap: anywhere; }
#view-mode-selector .mode-selector-hint { min-height: 0; text-align: left; }
#view-mode-selector .mode-selector-hint:empty { display: none; }
#view-mode-selector .mode-actions button { width: 100%; min-height: 48px; font: inherit; font-weight: 750; overflow-wrap: anywhere; }
#view-mode-selector button:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
@media (min-width: 700px) {
  #view-mode-selector .modes-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  #view-mode-selector .round-size-options { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}