/* Variables CSS pour la cohérence */
:root {
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --success-color: #10b981;
  --error-color: #ef4444;
  --warning-color: #f59e0b;
  --info-color: #3b82f6;
  
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.8);
  --text-muted: rgba(255, 255, 255, 0.6);
  
  --bg-card: rgba(255, 255, 255, 0.1);
  --bg-card-hover: rgba(255, 255, 255, 0.15);
  --bg-overlay: rgba(0, 0, 0, 0.8);
  
  --border-color: rgba(255, 255, 255, 0.2);
  --border-color-hover: rgba(255, 255, 255, 0.4);
  
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.3);
  
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 20px;
  
  --transition-fast: all 0.2s ease;
  --transition-normal: all 0.3s ease;
  --transition-slow: all 0.5s ease;
}

/* Reset et base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--primary-gradient);
  min-height: 100vh;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* Typographie */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.5em;
}

h1 {
  font-size: 2.5rem;
  background: linear-gradient(45deg, #ffd700, #ffed4e);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  margin-bottom: 1rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

h2 {
  font-size: 1.8rem;
  color: var(--text-primary);
}

h3 {
  font-size: 1.4rem;
  color: var(--text-primary);
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

/* Boutons */
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
  text-decoration: none;
  min-height: 48px;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--secondary-gradient);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-color-hover);
  transform: translateY(-1px);
}

.btn-primary:disabled,
.btn-secondary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Loader pour boutons */
.btn-loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.btn-text {
  transition: opacity 0.3s ease;
}

.btn-primary.loading .btn-text,
.btn-secondary.loading .btn-text {
  opacity: 0;
}

/* Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Cartes */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-color-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Modales */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-overlay);
  backdrop-filter: blur(5px);
  z-index: 1000;
  padding: 20px;
  overflow-y: auto;
  animation: fadeIn 0.3s ease;
}

.modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  max-width: 500px;
  width: 100%;
  margin: auto;
  background: var(--primary-gradient);
  border-radius: var(--border-radius-xl);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.3s ease;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  margin: 0;
  font-size: 1.5rem;
}

.close-modal {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 2rem;
  cursor: pointer;
  padding: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--transition-fast);
}

.close-modal:hover {
  background: var(--bg-card);
}

.modal-body {
  padding: 24px;
}

/* Formulaires d'authentification */
.auth-form {
  max-width: 400px;
  margin: 0 auto;
  padding: 40px;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius-xl);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.input-group {
  position: relative;
  margin-bottom: 20px;
}

.input-group input {
  width: 100%;
  padding: 16px 50px 16px 16px;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-md);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
  backdrop-filter: blur(10px);
}

.input-group input:focus {
  outline: none;
  border-color: var(--info-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.input-group input::placeholder {
  color: var(--text-muted);
}

.input-icon {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  opacity: 0.7;
}

/* Upload de fichier */
.file-input-group {
  margin-bottom: 20px;
}

.file-label {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius-md);
  background: var(--bg-card);
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: center;
}

.file-label:hover {
  border-color: var(--border-color-hover);
  background: var(--bg-card-hover);
}

.file-input {
  display: none;
}

.file-icon {
  font-size: 1.5rem;
}

.file-text {
  color: var(--text-secondary);
  font-weight: 500;
}

.file-preview {
  position: relative;
  margin-top: 12px;
  text-align: center;
}

.file-preview img {
  max-width: 100px;
  max-height: 100px;
  border-radius: var(--border-radius-md);
  object-fit: cover;
}

.remove-btn {
  position: absolute;
  top: -8px;
  right: calc(50% - 58px);
  background: var(--error-color);
  color: white;
  border: none;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
}

/* Logo de l'app */
.logo {
  text-align: center;
  margin-bottom: 30px;
}

.app-logo {
  width: 80px;
  height: 80px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 30px;
}

/* Liens d'authentification */
.auth-link {
  text-align: center;
  margin-top: 20px;
  color: var(--text-secondary);
}

.auth-link a {
  color: #60a5fa;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition-fast);
}

.auth-link a:hover {
  color: #3b82f6;
  text-decoration: underline;
}

/* Mode hors ligne */
.offline-mode {
  margin-top: 30px;
  padding: 20px;
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  text-align: center;
}

.offline-mode h3 {
  color: var(--warning-color);
  margin-bottom: 12px;
}

/* Indicateur de connexion */
.connection-status {
  position: fixed;
  top: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-card);
  border-radius: 20px;
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  font-size: 0.9rem;
  z-index: 100;
  transition: var(--transition-fast);
}

.connection-status.online .status-icon {
  color: var(--success-color);
}

.connection-status.offline .status-icon {
  color: var(--error-color);
}

/* Barre du haut */
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}

.back-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
}

.back-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-color-hover);
}

/* Toast notifications */
#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  background: rgba(255, 255, 255, 0.95);
  color: #333;
  border-radius: var(--border-radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
  border-left: 4px solid var(--info-color);
  min-width: 300px;
  max-width: 400px;
  transform: translateX(450px);
  transition: var(--transition-normal);
  word-wrap: break-word;
}

.toast.show {
  transform: translateX(0);
}

.toast.success {
  border-left-color: var(--success-color);
}

.toast.error {
  border-left-color: var(--error-color);
}

.toast.warning {
  border-left-color: var(--warning-color);
}

.toast.info {
  border-left-color: var(--info-color);
}

/* États de pages */
.login, .register {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

/* Animations */
@keyframes fadeIn {
  from {
      opacity: 0;
  }
  to {
      opacity: 1;
  }
}

@keyframes slideUp {
  from {
      opacity: 0;
      transform: translateY(30px);
  }
  to {
      opacity: 1;
      transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
      opacity: 1;
      transform: scale(1);
  }
  50% {
      opacity: 0.8;
      transform: scale(1.05);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
      padding: 15px;
  }
  
  h1 {
      font-size: 2rem;
  }
  
  .auth-form {
      padding: 30px 20px;
      margin: 0 10px;
  }
  
  .modal-content {
      margin: 20px;
  }
  
  .modal-header,
  .modal-body {
      padding: 20px;
  }
  
  .top-bar {
      padding: 12px 15px;
  }
  
  .toast {
      min-width: 280px;
      margin: 0 15px;
  }
  
  #toast-container {
      right: 0;
      left: 0;
      align-items: center;
  }
}

@media (max-width: 480px) {
  h1 {
      font-size: 1.8rem;
  }
  
  .auth-form {
      padding: 25px 15px;
  }
  
  .btn-primary,
  .btn-secondary {
      padding: 14px 20px;
      font-size: 0.95rem;
  }
  
  .input-group input {
      padding: 14px 45px 14px 14px;
      font-size: 0.95rem;
  }
}

/* Mode sombre automatique */
@media (prefers-color-scheme: dark) {
  /* Les styles sont déjà optimisés pour le mode sombre */
}

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

/* Focus visible pour l'accessibilité */
button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 2px solid var(--info-color);
  outline-offset: 2px;
}

/* Amélioration du contraste pour les liens */
a {
  color: #60a5fa;
  text-decoration: none;
}

a:hover {
  color: #3b82f6;
  text-decoration: underline;
}

/* États de chargement */
.loading {
  pointer-events: none;
  opacity: 0.7;
}

.loading .spinner {
  display: inline-block;
}

/* Utilitaires */
.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }

.w-full { width: 100%; }
.h-full { height: 100%; }

/* Styles pour les pages de quiz */

/* Layout général des quiz */
.quiz-multiplayer,
.quiz-solo {
    background: var(--primary-gradient);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.quiz-multiplayer .container,
.quiz-solo .container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0 20px 20px;
}

/* Barre de progression du quiz solo */
.quiz-progress {
    display: flex;
    align-items: center;
    gap: 12px;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--secondary-gradient);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-text {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    min-width: 50px;
}

/* Indicateur de connexion */
.connection-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--bg-card);
    border-radius: 20px;
    font-size: 0.8rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success-color);
}

.status-dot.offline {
    background: var(--error-color);
}

.status-dot.waiting {
    background: var(--warning-color);
    animation: pulse 2s infinite;
}

.status-dot.active {
    background: var(--success-color);
    animation: pulse 2s infinite;
}

/* Cartes de jeu */
.header-card,
.question-card,
.theme-card,
.game-info-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-xl);
    padding: 24px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

/* En-tête avec timer */
.header-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-card.waiting {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), var(--bg-card));
    border-color: rgba(245, 158, 11, 0.3);
}

.turn-indicator {
    display: flex;
    align-items: center;
    gap: 16px;
}

.turn-indicator h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Timer circulaire */
.timer-circle {
    position: relative;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timer-svg {
    position: absolute;
    top: 0;
    left: 0;
    transform: rotate(-90deg);
}

.timer-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.2);
    stroke-width: 4;
}

.timer-progress {
    fill: none;
    stroke: url(#timerGradient);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: 157; /* 2πr = 2π*25 */
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 1s linear;
}

.timer-text {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--text-primary);
    z-index: 1;
}

/* Timer container pour quiz solo */
.timer-container {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

/* Section des joueurs */
.players-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 20px;
}

.player-card {
    background: rgba(59, 130, 246, 0.1);
    border: 2px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.player-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: transparent;
    transition: background 0.3s ease;
}

.player-card.player-active {
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.4);
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.2);
}

.player-card.player-active::before {
    background: var(--success-color);
}

.player-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: bold;
    color: white;
    background: var(--info-color);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.player-avatar.opponent {
    background: #ef4444;
}

.player-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.player-info {
    flex: 1;
    min-width: 0;
}

.player-name {
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.you-badge {
    background: var(--success-color);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.player-score {
    font-size: 1.2rem;
    font-weight: 700;
    color: #fbbf24;
    margin-bottom: 4px;
}

.player-streak {
    font-size: 0.8rem;
    color: var(--warning-color);
    font-weight: 600;
}

/* VS divider */
.vs-divider {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    min-width: 80px;
}

.vs-text {
    font-size: 1.5rem;
    font-weight: bold;
    background: var(--secondary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.vs-progress {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Thème du quiz */
.theme-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: linear-gradient(135deg, rgba(139, 69, 19, 0.1), var(--bg-card));
    border-color: rgba(139, 69, 19, 0.2);
}

.theme-icon {
    font-size: 1.8rem;
    opacity: 0.9;
}

.theme-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
}

.difficulty-badge {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* En-tête du quiz solo */
.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    padding: 24px;
    background: var(--bg-card);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--border-color);
}

.quiz-info h1 {
    font-size: 1.8rem;
    margin-bottom: 12px;
    text-align: left;
}

.quiz-meta {
    display: flex;
    gap: 12px;
    align-items: center;
}

.theme-badge {
    padding: 6px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.score-display {
    text-align: center;
}

.score-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: #fbbf24;
    line-height: 1;
}

.score-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 4px;
}

/* Questions */
.question-section {
    margin-bottom: 30px;
}

.question-card {
    text-align: center;
    background: linear-gradient(135deg, var(--bg-card), rgba(255, 255, 255, 0.05));
    border: 2px solid var(--border-color);
}

.question-number {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.question-card h2 {
    font-size: 1.4rem;
    line-height: 1.5;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding: 0 20px;
}

.question-image {
    margin: 20px 0;
    text-align: center;
}

.question-image img {
    max-width: 100%;
    max-height: 200px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
}

/* Réponses */
.answers-section {
    margin-bottom: 30px;
}

.answers-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 20px;
}

.answer-btn {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 16px;
    text-align: left;
    min-height: 80px;
    position: relative;
    overflow: hidden;
}

.answer-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.answer-btn:hover::before {
    transform: translateX(100%);
}

.answer-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.answer-letter {
    background: var(--secondary-gradient);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.answer-text {
    flex: 1;
    line-height: 1.4;
}

.answer-btn.selected {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--info-color);
    box-shadow: 0 0 25px rgba(59, 130, 246, 0.3);
    transform: translateY(-3px);
}

.answer-btn.correct {
    background: rgba(16, 185, 129, 0.2);
    border-color: var(--success-color);
    box-shadow: 0 0 25px rgba(16, 185, 129, 0.4);
}

.answer-btn.correct .answer-letter {
    background: var(--success-color);
}

.answer-btn.incorrect {
    background: rgba(239, 68, 68, 0.2);
    border-color: var(--error-color);
    box-shadow: 0 0 25px rgba(239, 68, 68, 0.4);
}

.answer-btn.incorrect .answer-letter {
    background: var(--error-color);
}

.answer-btn:disabled {
    cursor: not-allowed;
    opacity: 0.8;
}

.answer-btn.eliminated {
    opacity: 0.3;
    pointer-events: none;
    transform: scale(0.95);
}

/* Feedback après réponse */
.answer-feedback {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    margin-top: 20px;
    border: 1px solid var(--border-color);
    text-align: center;
    animation: slideUp 0.4s ease;
}

.feedback-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feedback-result {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 1.1rem;
    font-weight: 600;
}

.feedback-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
}

.feedback-result.correct .feedback-icon {
    background: var(--success-color);
}

.feedback-result.incorrect .feedback-icon {
    background: var(--error-color);
}

.feedback-text {
    color: var(--text-primary);
}

.feedback-points {
    color: #fbbf24;
    font-weight: 700;
}

.feedback-explanation {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    padding: 16px;
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.5;
}

.feedback-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
}

/* Boutons d'aide */
.help-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 20px;
}

.help-btn {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 12px 16px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    min-width: 80px;
    position: relative;
}

.help-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    transform: translateY(-2px);
}

.help-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.help-icon {
    font-size: 1.2rem;
}

.help-text {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.help-count {
    position: absolute;
    top: -6px;
    right: -6px;
    background: var(--secondary-gradient);
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: bold;
}

/* Interface d'attente */
.waiting-animation {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Informations de partie */
.info-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
}

.info-icon {
    font-size: 1.4rem;
    min-width: 32px;
    text-align: center;
    opacity: 0.8;
}

.info-content {
    flex: 1;
}

.info-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
    font-weight: 500;
}

.info-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.status-waiting {
    color: var(--warning-color);
    font-style: italic;
}

/* Actions d'attente */
.waiting-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 20px;
}

.action-btn {
    padding: 12px 20px;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 8px;
}

.action-btn.secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.action-btn.secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
}

/* Interface de fin de partie */
.game-end-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-xl);
    padding: 40px;
    text-align: center;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
}

.result-header {
    margin-bottom: 30px;
}

.result-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    display: block;
}

.result-header h1 {
    font-size: 2.2rem;
    margin-bottom: 8px;
}

.result-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Scores finaux */
.final-scores {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    margin-bottom: 30px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
}

.final-score {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.score-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    background: var(--info-color);
}

.score-avatar.opponent {
    background: #ef4444;
}

.score-info {
    text-align: center;
}

.score-name {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 4px;
}

.score-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fbbf24;
}

.final-vs {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-secondary);
}

/* Statistiques de jeu */
.game-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.stat-icon {
    font-size: 1.5rem;
    opacity: 0.8;
}

/* Actions de fin */
.end-actions,
.result-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Modal de résultat */
.quiz-result {
    text-align: center;
    padding: 20px;
}

.result-score {
    margin: 30px 0;
}

.final-score {
    margin-bottom: 16px;
}

.result-percentage {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.result-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
    margin: 30px 0;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
}

/* Modal de pause */
.pause-content {
    text-align: center;
    padding: 20px;
}

.pause-content h2 {
    margin-bottom: 16px;
    font-size: 1.8rem;
}

.pause-content p {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.pause-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* Chat toggle */
.chat-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 100;
}

.chat-toggle button {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--secondary-gradient);
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-fast);
}

.chat-toggle button:hover {
    transform: scale(1.1);
}

/* Animations spécifiques */
@keyframes correctAnswer {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes incorrectShake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

.answer-btn.correct {
    animation: correctAnswer 0.6s ease;
}

.answer-btn.incorrect {
    animation: incorrectShake 0.6s ease;
}

/* Responsive pour quiz */
@media (max-width: 768px) {
    .quiz-multiplayer .container,
    .quiz-solo .container {
        padding: 0 15px 15px;
    }
    
    .players-section {
        flex-direction: column;
        gap: 16px;
    }
    
    .vs-divider {
        order: 2;
        min-width: auto;
        padding: 10px 0;
    }
    
    .player-card {
        width: 100%;
    }
    
    .answers-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .answer-btn {
        min-height: 70px;
        padding: 16px;
    }
    
    .quiz-header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .help-buttons {
        gap: 12px;
    }
    
    .help-btn {
        min-width: 70px;
        padding: 10px 12px;
    }
    
    .final-scores {
        flex-direction: column;
        gap: 20px;
    }
    
    .game-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .end-actions,
    .result-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .end-actions .btn-primary,
    .end-actions .btn-secondary,
    .result-actions .btn-primary,
    .result-actions .btn-secondary {
        width: 100%;
        max-width: 250px;
    }
}

@media (max-width: 480px) {
    .header-card,
    .question-card,
    .theme-card,
    .game-info-card {
        padding: 20px;
        margin-bottom: 16px;
    }
    
    .turn-indicator h1 {
        font-size: 1.5rem;
    }
    
    .timer-circle {
        width: 64px;
        height: 64px;
    }
    
    .timer-text {
        font-size: 1.2rem;
    }
    
    .player-avatar {
        width: 48px;
        height: 48px;
        font-size: 1.1rem;
    }
    
    .question-card h2 {
        font-size: 1.2rem;
        padding: 0 10px;
    }
    
    .answer-btn {
        min-height: 60px;
        padding: 14px;
        gap: 12px;
    }
    
    .answer-letter {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }
    
    .quiz-header {
        padding: 20px;
    }
    
    .score-value {
        font-size: 2rem;
    }
    
    .result-icon {
        font-size: 3rem;
    }
    
    .result-header h1 {
        font-size: 1.8rem;
    }
    
    .game-stats {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}

/* Styles pour les gradients SVG */
svg defs {
    position: absolute;
}

/* Mode haut contraste */
@media (prefers-contrast: high) {
    .answer-btn {
        border-width: 3px;
    }
    
    .answer-btn.selected {
        border-width: 4px;
    }
    
    .timer-progress {
        stroke-width: 6;
    }
}

/* =========================
   STYLES UI CORRIGÉS - RIVALQUIZ
   À ajouter à la fin de style.css
   ========================= */

/* =========================
   GESTIONNAIRE DE MUSIQUE 
   ========================= */

/* Widget principal de musique */
.rivalquiz-music-widget {
    position: fixed !important;
    top: 80px !important;
    left: 200px !important;
    z-index: 998 !important;
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    padding: 12px 18px !important;
    border-radius: 25px !important;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4) !important;
    backdrop-filter: blur(15px) !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    border: 2px solid rgba(255, 255, 255, 0.2) !important;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
    user-select: none !important;
    max-width: 200px !important;
    animation: musicWidgetSlideIn 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55) !important;
}

.rivalquiz-music-widget:hover {
    transform: translateY(-3px) scale(1.02) !important;
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.5) !important;
    border-color: rgba(255, 255, 255, 0.4) !important;
    background: linear-gradient(135deg, #7c3aed 0%, #8b5cf6 100%) !important;
}

/* Bouton principal de musique */
.rivalquiz-music-btn {
    background: rgba(255, 255, 255, 0.15) !important;
    border: 2px solid rgba(255, 255, 255, 0.2) !important;
    color: white !important;
    font-size: 1.4rem !important;
    cursor: pointer !important;
    padding: 8px !important;
    border-radius: 50% !important;
    transition: all 0.3s ease !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 40px !important;
    height: 40px !important;
    margin: 0 !important;
    outline: none !important;
    position: relative !important;
    overflow: hidden !important;
}

.rivalquiz-music-btn::before {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    left: -100% !important;
    width: 100% !important;
    height: 100% !important;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent) !important;
    transition: left 0.6s ease !important;
}

.rivalquiz-music-btn:hover::before {
    left: 100% !important;
}

.rivalquiz-music-btn:hover {
    background: rgba(255, 255, 255, 0.25) !important;
    transform: scale(1.1) rotate(5deg) !important;
    border-color: rgba(255, 255, 255, 0.4) !important;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3) !important;
}

.rivalquiz-music-btn:active {
    transform: scale(0.95) !important;
}

/* Icône musicale avec animation */
.rivalquiz-music-icon {
    transition: all 0.3s ease !important;
    display: inline-block !important;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3)) !important;
    font-style: normal !important;
    line-height: 1 !important;
    animation: musicPulse 2s ease-in-out infinite !important;
}

/* Container du volume */
.rivalquiz-volume-container {
    display: flex !important;
    align-items: center !important;
    margin: 0 !important;
    padding: 0 !important;
    gap: 8px !important;
}

/* Slider de volume stylé */
.rivalquiz-volume-slider {
    width: 80px !important;
    height: 6px !important;
    border-radius: 3px !important;
    background: rgba(255, 255, 255, 0.2) !important;
    outline: none !important;
    -webkit-appearance: none !important;
    appearance: none !important;
    transition: all 0.3s ease !important;
    margin: 0 !important;
    padding: 0 !important;
    cursor: pointer !important;
    position: relative !important;
}

.rivalquiz-volume-slider::-webkit-slider-track {
    height: 6px !important;
    border-radius: 3px !important;
    background: rgba(255, 255, 255, 0.2) !important;
    border: none !important;
}

.rivalquiz-volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none !important;
    appearance: none !important;
    width: 18px !important;
    height: 18px !important;
    border-radius: 50% !important;
    background: linear-gradient(45deg, #fbbf24, #f59e0b) !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3), 0 0 0 2px rgba(255, 255, 255, 0.1) !important;
    border: none !important;
    margin-top: -6px !important;
    position: relative !important;
}

.rivalquiz-volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.3) !important;
    box-shadow: 0 0 0 6px rgba(251, 191, 36, 0.3), 0 4px 12px rgba(0, 0, 0, 0.4) !important;
    background: linear-gradient(45deg, #fcd34d, #fbbf24) !important;
}

.rivalquiz-volume-slider::-moz-range-track {
    height: 6px !important;
    border-radius: 3px !important;
    background: rgba(255, 255, 255, 0.2) !important;
    border: none !important;
}

.rivalquiz-volume-slider::-moz-range-thumb {
    width: 18px !important;
    height: 18px !important;
    border-radius: 50% !important;
    background: linear-gradient(45deg, #fbbf24, #f59e0b) !important;
    cursor: pointer !important;
    border: none !important;
    transition: all 0.3s ease !important;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3) !important;
}

.rivalquiz-volume-slider::-moz-range-thumb:hover {
    transform: scale(1.3) !important;
    box-shadow: 0 0 0 6px rgba(251, 191, 36, 0.3) !important;
}

/* Indicateur de statut avec animation */
.rivalquiz-music-widget::after {
    content: '' !important;
    position: absolute !important;
    top: -3px !important;
    right: -3px !important;
    width: 8px !important;
    height: 8px !important;
    background: #10b981 !important;
    border-radius: 50% !important;
    border: 2px solid rgba(255, 255, 255, 0.8) !important;
    animation: statusPulse 2s infinite !important;
}

/* =========================
   BANNIÈRE PWA REDESIGNÉE
   ========================= */

#install-banner {
    position: fixed !important;
    bottom: 20px !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    backdrop-filter: blur(20px) !important;
    border-radius: 20px !important;
    padding: 20px 24px !important;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.4) !important;
    z-index: 1001 !important;
    animation: slideUpBounce 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55) !important;
    max-width: 400px !important;
    width: calc(100% - 40px) !important;
    color: white !important;
    border: 2px solid rgba(255, 255, 255, 0.2) !important;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
}

.install-content {
    display: flex !important;
    align-items: center !important;
    gap: 16px !important;
}

.install-icon {
    font-size: 2.5rem !important;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3)) !important;
    animation: iconFloat 3s ease-in-out infinite !important;
    flex-shrink: 0 !important;
}

.install-text {
    flex: 1 !important;
    min-width: 0 !important;
}

.install-text h3 {
    margin: 0 0 4px 0 !important;
    font-size: 1.2rem !important;
    font-weight: 700 !important;
    color: white !important;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3) !important;
}

.install-text p {
    margin: 0 !important;
    font-size: 0.9rem !important;
    color: rgba(255, 255, 255, 0.9) !important;
    line-height: 1.3 !important;
}

.install-actions {
    display: flex !important;
    gap: 12px !important;
    flex-shrink: 0 !important;
}

/* Bouton installer redesigné */
#install-btn {
    background: linear-gradient(45deg, #10b981, #059669) !important;
    border: none !important;
    color: white !important;
    padding: 12px 20px !important;
    border-radius: 12px !important;
    font-size: 0.9rem !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3) !important;
    position: relative !important;
    overflow: hidden !important;
    border: 2px solid transparent !important;
    text-transform: uppercase !important;
    letter-spacing: 0.5px !important;
}

#install-btn::before {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    left: -100% !important;
    width: 100% !important;
    height: 100% !important;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent) !important;
    transition: left 0.6s ease !important;
}

#install-btn:hover::before {
    left: 100% !important;
}

#install-btn:hover {
    background: linear-gradient(45deg, #059669, #047857) !important;
    transform: translateY(-2px) scale(1.05) !important;
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4) !important;
    border-color: rgba(255, 255, 255, 0.3) !important;
}

#install-btn:active {
    transform: translateY(0) scale(0.98) !important;
}

/* Bouton "Plus tard" */
#install-dismiss {
    background: rgba(255, 255, 255, 0.1) !important;
    border: 2px solid rgba(255, 255, 255, 0.2) !important;
    color: white !important;
    padding: 12px 16px !important;
    border-radius: 12px !important;
    font-size: 0.9rem !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    backdrop-filter: blur(10px) !important;
}

#install-dismiss:hover {
    background: rgba(255, 255, 255, 0.2) !important;
    border-color: rgba(255, 255, 255, 0.4) !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2) !important;
}

#install-dismiss:active {
    transform: translateY(0) scale(0.98) !important;
}

/* =========================
   ANIMATIONS 
   ========================= */

@keyframes musicWidgetSlideIn {
    0% {
        transform: translateX(-120px) scale(0.8) !important;
        opacity: 0 !important;
    }
    60% {
        transform: translateX(10px) scale(1.05) !important;
        opacity: 0.8 !important;
    }
    100% {
        transform: translateX(0) scale(1) !important;
        opacity: 1 !important;
    }
}

@keyframes musicPulse {
    0%, 100% { 
        transform: scale(1) !important; 
        filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3)) !important;
    }
    50% { 
        transform: scale(1.05) !important; 
        filter: drop-shadow(0 4px 8px rgba(255, 255, 255, 0.2)) !important;
    }
}

@keyframes statusPulse {
    0%, 100% { 
        opacity: 0.8 !important; 
        transform: scale(1) !important; 
        background: #10b981 !important;
    }
    50% { 
        opacity: 1 !important; 
        transform: scale(1.2) !important; 
        background: #34d399 !important;
    }
}

@keyframes slideUpBounce {
    0% {
        opacity: 0 !important;
        transform: translateX(-50%) translateY(100px) scale(0.9) !important;
    }
    70% {
        transform: translateX(-50%) translateY(-10px) scale(1.02) !important;
    }
    100% {
        opacity: 1 !important;
        transform: translateX(-50%) translateY(0) scale(1) !important;
    }
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0) rotate(0deg) !important; }
    25% { transform: translateY(-3px) rotate(2deg) !important; }
    75% { transform: translateY(3px) rotate(-2deg) !important; }
}

@keyframes slideDown {
    0% {
        opacity: 1 !important;
        transform: translateX(-50%) translateY(0) scale(1) !important;
    }
    100% {
        opacity: 0 !important;
        transform: translateX(-50%) translateY(50px) scale(0.95) !important;
    }
}

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

@media (max-width: 768px) {
    .rivalquiz-music-widget {
        top: 15px !important;
        left: 15px !important;
        padding: 10px 14px !important;
        transform: scale(0.9) !important;
        max-width: 180px !important;
    }
    
    .rivalquiz-volume-slider {
        width: 60px !important;
    }

    .rivalquiz-music-btn {
        width: 36px !important;
        height: 36px !important;
        font-size: 1.2rem !important;
    }

    #install-banner {
        width: calc(100% - 30px) !important;
        bottom: 15px !important;
        padding: 18px 20px !important;
    }

    .install-content {
        gap: 12px !important;
    }

    .install-actions {
        flex-direction: column !important;
        gap: 8px !important;
        min-width: 80px !important;
    }

    #install-btn,
    #install-dismiss {
        padding: 10px 14px !important;
        font-size: 0.85rem !important;
    }
}

@media (max-width: 480px) {
    .rivalquiz-music-widget {
        top: 10px !important;
        left: 10px !important;
        padding: 8px 12px !important;
        transform: scale(0.85) !important;
        max-width: 160px !important;
    }
    
    .rivalquiz-volume-slider {
        width: 50px !important;
    }

    .rivalquiz-music-btn {
        width: 32px !important;
        height: 32px !important;
        font-size: 1.1rem !important;
    }

    #install-banner {
        width: calc(100% - 20px) !important;
        bottom: 10px !important;
        padding: 16px 18px !important;
        border-radius: 16px !important;
    }

    .install-content {
        flex-direction: column !important;
        text-align: center !important;
        gap: 16px !important;
    }

    .install-icon {
        font-size: 2rem !important;
    }

    .install-text h3 {
        font-size: 1.1rem !important;
    }

    .install-text p {
        font-size: 0.85rem !important;
    }

    .install-actions {
        flex-direction: row !important;
        justify-content: center !important;
        width: 100% !important;
    }

    #install-btn {
        flex: 1 !important;
    }

    #install-dismiss {
        flex: 0.8 !important;
    }
}

/* =========================
   PROTECTION ET ISOLATION 
   ========================= */

.rivalquiz-music-widget,
.rivalquiz-music-widget *,
#install-banner,
#install-banner * {
    box-sizing: border-box !important;
}

/* Focus visible pour l'accessibilité */
.rivalquiz-music-btn:focus-visible,
#install-btn:focus-visible,
#install-dismiss:focus-visible {
    outline: 3px solid #60a5fa !important;
    outline-offset: 3px !important;
}

/* Mode sombre adaptatif */
@media (prefers-color-scheme: dark) {
    .rivalquiz-music-widget {
        background: linear-gradient(135deg, #1f2937 0%, #374151 100%) !important;
        border-color: rgba(255, 255, 255, 0.3) !important;
    }
    
    #install-banner {
        background: linear-gradient(135deg, #1f2937 0%, #374151 100%) !important;
        border-color: rgba(255, 255, 255, 0.3) !important;
    }
}

/* Réduction de mouvement pour l'accessibilité */
@media (prefers-reduced-motion: reduce) {
    .rivalquiz-music-widget,
    #install-banner,
    .rivalquiz-music-icon,
    .install-icon {
        animation: none !important;
        transition-duration: 0.1ms !important;
    }
    
    .rivalquiz-music-widget::after {
        animation: none !important;
    }
}

/* Contraste élevé */
@media (prefers-contrast: high) {
    .rivalquiz-music-widget {
        border-width: 3px !important;
        border-color: white !important;
    }
    
    #install-banner {
        border-width: 3px !important;
        border-color: white !important;
    }
    
    #install-btn {
        border: 3px solid white !important;
    }
}