/* ======================================
   MODALS ET OVERLAYS DEEPNOTES
   ====================================== */

/* ======================================
   GUIDE D'UTILISATION
   ====================================== */

.guide-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.guide-section {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.guide-section:hover {
  border-color: var(--color-button);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.guide-section-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: var(--color-surface);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  gap: 1rem;
}

.guide-section-btn:hover {
  background: var(--color-surface-alt);
}

.guide-section-btn.active {
  background: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
}

.guide-section-btn.active .guide-chevron {
  transform: rotate(180deg);
}

.guide-btn-content {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
}

.guide-section-btn i:first-child {
  font-size: 1.25rem;
  color: var(--color-accent);
  width: 24px;
  text-align: center;
}

.guide-section-btn span {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-on-surface);
}

.guide-chevron {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.guide-section-content {
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out, opacity 0.3s ease-out;
  opacity: 0;
}

.guide-section-btn.active + .guide-section-content {
  max-height: 2000px;
  padding: 1.5rem;
  opacity: 1;
  animation: slideDown 0.3s ease-out;
}

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

.guide-text {
  color: var(--color-text-on-surface);
  line-height: 1.6;
  margin: 0 0 1rem 0;
}

.guide-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.guide-list li {
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-text-on-surface);
  line-height: 1.6;
}

.guide-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 600;
}

.guide-list li strong {
  color: var(--color-button);
  font-weight: 600;
}

.welcome-guide-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
}

.welcome-guide-btn i {
  font-size: 1rem;
}

/* Responsive pour le guide */
@media (max-width: 767px) {
  .guide-content {
    gap: 1.5rem;
  }

  .guide-section {
    padding-bottom: 1rem;
  }

  .guide-section-title {
    font-size: 1.125rem;
  }

  .guide-list {
    gap: 0.5rem;
  }

  .guide-list li {
    padding-left: 1.25rem;
    font-size: 0.9375rem;
  }
}

/* ======================================
   MODAL BASE
   ====================================== */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  padding: var(--spacing-lg);
}

.modal.show {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--border-radius-large);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.8) translateY(-50px);
  transition: transform var(--transition-normal);
  position: relative;
}

.modal.show .modal-content {
  transform: scale(1) translateY(0);
}

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

.modal-header h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-on-surface);
  margin: 0;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  font-size: 1.5rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-error);
  color: white;
  transform: scale(1.1);
}

.modal-body {
  padding: var(--spacing-lg);
  overflow-y: auto;
  max-height: calc(90vh - 160px);
}

.modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
}

.modal-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
  margin-top: var(--spacing-lg);
}

/* ======================================
   UPLOAD MODAL
   ====================================== */

.upload-area {
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius-large);
  padding: var(--spacing-2xl);
  text-align: center;
  transition: all var(--transition-fast);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.upload-area:hover {
  border-color: var(--color-button);
  background: var(--color-surface-alt);
}

.upload-area.dragover {
  border-color: var(--color-button);
  background: var(--color-surface-alt);
  transform: scale(1.02);
}

.upload-icon {
  font-size: 3rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  transition: all var(--transition-fast);
}

.upload-area:hover .upload-icon {
  color: var(--color-button);
  transform: scale(1.1);
}

.upload-area p {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.upload-progress {
  margin-top: var(--spacing-lg);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-surface-alt);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-button), var(--color-accent));
  border-radius: 4px;
  width: 0%;
  transition: width var(--transition-fast);
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 2s infinite;
}

.progress-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-align: center;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ======================================
   AI GENERATION MODAL
   ====================================== */

.generation-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.option-group {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
}

.option-group h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-on-surface);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.option-group h4::before {
  content: '';
  width: 4px;
  height: 20px;
  background: var(--color-button);
  border-radius: 2px;
}

.quiz-options.hidden,
.notes-options.hidden,
.custom-prompt.hidden {
  display: none;
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-group label {
  display: block;
  font-weight: 500;
  color: var(--color-text-on-surface);
  margin-bottom: var(--spacing-sm);
}

.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-surface);
  color: var(--color-text-on-surface);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-button);
  box-shadow: 0 0 0 3px rgba(var(--color-button), 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
  font-family: inherit;
}

/* ======================================
   CONFIRMATION MODAL
   ====================================== */

.confirm-modal .modal-content {
  max-width: 400px;
}

.confirm-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  font-size: 1.5rem;
}

.confirm-icon.warning {
  background: rgba(255, 193, 7, 0.1);
  color: var(--color-warning);
}

.confirm-icon.danger {
  background: rgba(220, 53, 69, 0.1);
  color: var(--color-error);
}

.confirm-icon.info {
  background: rgba(23, 162, 184, 0.1);
  color: var(--color-info);
}

.confirm-title {
  font-size: 1.25rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-on-surface);
}

.confirm-message {
  text-align: center;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

/* ======================================
   LOADING OVERLAY
   ====================================== */

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.loading-overlay.show {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  text-align: center;
  background: var(--color-surface);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-large);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.spinner {
  width: 60px;
  height: 60px;
  border: 4px solid var(--color-surface-alt);
  border-top: 4px solid var(--color-button);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--spacing-lg);
}

.loading-text {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text-on-surface);
  margin: 0;
}

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

/* ======================================
   TOAST NOTIFICATIONS
   ====================================== */

.toast-container {
  position: fixed;
  top: calc(80px + var(--spacing-md));
  right: var(--spacing-md);
  z-index: 2500;
  max-width: 400px;
  width: 100%;
}

.toast {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow-large);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  transform: translateX(400px);
  transition: transform var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.toast::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
}

.toast.success::before {
  background: var(--color-success);
}

.toast.error::before {
  background: var(--color-error);
}

.toast.warning::before {
  background: var(--color-warning);
}

.toast.info::before {
  background: var(--color-info);
}

.toast-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  color: white;
}

.toast.success .toast-icon {
  background: var(--color-success);
}

.toast.error .toast-icon {
  background: var(--color-error);
}

.toast.warning .toast-icon {
  background: var(--color-warning);
}

.toast.info .toast-icon {
  background: var(--color-info);
}

.toast-content {
  flex: 1;
  min-width: 0;
}

.toast-title {
  font-weight: 600;
  color: var(--color-text-on-surface);
  margin-bottom: var(--spacing-xs);
  font-size: 0.875rem;
}

.toast-message {
  color: var(--color-text-secondary);
  font-size: 0.75rem;
  line-height: 1.4;
}

.toast-close {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: none;
  background: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  transition: all var(--transition-fast);
}

.toast-close:hover {
  background: var(--color-surface-alt);
  color: var(--color-text-on-surface);
}

/* Progress bar for toast auto-dismiss */
.toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--color-button);
  width: 100%;
  transform-origin: left;
  animation: toastProgress 5s linear;
}

@keyframes toastProgress {
  from { transform: scaleX(1); }
  to { transform: scaleX(0); }
}

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

.modal-slide-up .modal-content {
  transform: translateY(100px);
}

.modal-slide-up.show .modal-content {
  transform: translateY(0);
}

.modal-slide-down .modal-content {
  transform: translateY(-100px);
}

.modal-slide-down.show .modal-content {
  transform: translateY(0);
}

.modal-zoom-in .modal-content {
  transform: scale(0.5);
}

.modal-zoom-in.show .modal-content {
  transform: scale(1);
}

/* ======================================
   AUTH MODAL
   ====================================== */

.auth-container {
  text-align: center;
  max-width: 500px;
  margin: 0 auto;
}

.auth-welcome {
  margin-bottom: var(--spacing-2xl);
}

.auth-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.auth-logo .logo {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius);
}

.auth-logo .brand-text {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text-on-surface);
}

.auth-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.5;
}

.auth-options {
  margin-bottom: var(--spacing-2xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

.auth-btn {
  width: 100%;
  padding: var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius-large);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  position: relative;
  overflow: hidden;
}

.auth-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.auth-btn:active {
  transform: translateY(0);
}

.google-btn {
  background: #4285f4;
  color: white;
  border: 2px solid #4285f4;
  font-size: 1.125rem;
  padding: var(--spacing-lg) var(--spacing-xl);
}

.google-btn:hover {
  background: #3367d6;
  border-color: #3367d6;
}

.google-btn i {
  font-size: 1.5rem;
}

/* Primary Google button (Sign In) */
.google-btn.primary {
  background: #4285f4;
  border-color: #4285f4;
}

.google-btn.primary:hover {
  background: #3367d6;
  border-color: #3367d6;
}

/* Secondary Google button (Sign Up) */
.google-btn.secondary {
  background: transparent;
  color: #4285f4;
  border-color: #4285f4;
}

.google-btn.secondary:hover {
  background: #4285f4;
  color: white;
  border-color: #4285f4;
}

/* Logout button */
.logout-btn {
  background: #ef4444;
  color: white;
  border: 2px solid #ef4444;
}

.logout-btn:hover {
  background: #dc2626;
  border-color: #dc2626;
}

.logout-btn i {
  font-size: 1.25rem;
}

.auth-divider {
  position: relative;
  margin: var(--spacing-xl) 0;
  text-align: center;
}

.auth-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-border);
}

.auth-divider span {
  background: var(--color-surface);
  padding: 0 var(--spacing-md);
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  position: relative;
  z-index: 1;
}

.auth-info {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  text-align: center;
  margin-top: var(--spacing-md);
}

.auth-info p {
  margin: 0;
}

.auth-link {
  color: var(--color-button);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.auth-link:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.auth-features {
  text-align: left;
  background: var(--color-surface-alt);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-large);
  border: 1px solid var(--color-border);
}

.auth-features h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-on-surface);
  margin: 0 0 var(--spacing-md) 0;
  text-align: center;
}

.auth-features ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.auth-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.auth-features li i {
  color: var(--color-success);
  font-size: 0.875rem;
  width: 16px;
  text-align: center;
}

/* Auth modal specific adjustments */
#auth-modal .modal-content {
  max-width: 500px;
}

#auth-modal .modal-body {
  padding: var(--spacing-2xl);
}

/* Loading state for auth button */
.auth-btn.loading {
  pointer-events: none;
  opacity: 0.7;
}

.auth-btn.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.auth-btn.loading span {
  opacity: 0;
}

/* Auth button states */
.auth-btn.hidden {
  display: none !important;
}

.auth-btn.visible {
  display: flex !important;
}

/* Auth modal state management */
.auth-modal-signed-in .google-btn {
  display: none;
}

.auth-modal-signed-in .logout-btn {
  display: flex !important;
}

.auth-modal-signed-out .google-btn {
  display: flex;
}

.auth-modal-signed-out .logout-btn {
  display: none !important;
}

/* ======================================
   MOBILE MODAL ADJUSTMENTS
   ====================================== */

@media (max-width: 767px) {
  .modal {
    padding: var(--spacing-sm);
  }
  
  .modal-content {
    max-height: 95vh;
  }
  
  .modal-header,
  .modal-body,
  .modal-footer {
    padding: var(--spacing-md);
  }
  
  .upload-area {
    padding: var(--spacing-lg);
  }
  
  .upload-icon {
    font-size: 2rem;
  }
  
  .toast-container {
    top: calc(60px + var(--spacing-sm));
    left: var(--spacing-sm);
    right: var(--spacing-sm);
    max-width: none;
  }
  
  .toast {
    transform: translateY(-100px);
  }
  
  .toast.show {
    transform: translateY(0);
  }
  
  /* Auth modal mobile adjustments */
  #auth-modal .modal-body {
    padding: var(--spacing-lg);
  }
  
  .auth-container {
    max-width: 100%;
  }
  
  .auth-logo .brand-text {
    font-size: 1.5rem;
  }
  
  .auth-subtitle {
    font-size: 1rem;
  }
  
  .auth-btn {
    padding: var(--spacing-md);
    font-size: 0.875rem;
  }
  
  .auth-features {
    padding: var(--spacing-md);
  }
}

/* ======================================
   FIREBASE UI AUTH STYLES
   ====================================== */

.firebaseui-container {
  margin: var(--spacing-lg) 0;
}

/* Override Firebase UI styles to match our design */
.firebaseui-container .firebaseui-card-content {
  padding: 0;
}

.firebaseui-container .firebaseui-idp-button {
  background: #4285f4;
  border: 2px solid #4285f4;
  border-radius: var(--border-radius-large);
  color: white;
  font-weight: 600;
  padding: var(--spacing-lg);
  margin: var(--spacing-sm) 0;
  width: 100%;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.firebaseui-container .firebaseui-idp-button:hover {
  background: #3367d6;
  border-color: #3367d6;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.firebaseui-container .firebaseui-idp-button:active {
  transform: translateY(0);
}

.firebaseui-container .firebaseui-idp-button.firebaseui-idp-google {
  background: #4285f4;
  border-color: #4285f4;
}

.firebaseui-container .firebaseui-idp-button.firebaseui-idp-google:hover {
  background: #3367d6;
  border-color: #3367d6;
}

.firebaseui-container .firebaseui-idp-button.firebaseui-idp-password {
  background: transparent;
  color: #4285f4;
  border-color: #4285f4;
}

.firebaseui-container .firebaseui-idp-button.firebaseui-idp-password:hover {
  background: #4285f4;
  color: white;
  border-color: #4285f4;
}

.firebaseui-container .firebaseui-idp-icon {
  width: 20px;
  height: 20px;
  margin-right: var(--spacing-sm);
}

.firebaseui-container .firebaseui-idp-text {
  font-size: 1rem;
  font-weight: 600;
}

/* Firebase UI form styles */
.firebaseui-container .firebaseui-card-content .firebaseui-form-actions {
  margin: var(--spacing-lg) 0;
}

.firebaseui-container .firebaseui-card-content .firebaseui-form-actions .firebaseui-idp-button {
  margin: var(--spacing-sm) 0;
}

/* Firebase UI input styles */
.firebaseui-container .firebaseui-card-content .firebaseui-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-surface);
  color: var(--color-text-on-surface);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
  margin: var(--spacing-sm) 0;
}

.firebaseui-container .firebaseui-card-content .firebaseui-input:focus {
  outline: none;
  border-color: var(--color-button);
  box-shadow: 0 0 0 3px rgba(var(--color-button), 0.1);
}

/* Firebase UI label styles */
.firebaseui-container .firebaseui-card-content .firebaseui-label {
  color: var(--color-text-on-surface);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  display: block;
}

/* Firebase UI error styles */
.firebaseui-container .firebaseui-card-content .firebaseui-error {
  color: var(--color-error);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: var(--border-radius);
  padding: var(--spacing-sm) var(--spacing-md);
  margin: var(--spacing-sm) 0;
  font-size: 0.875rem;
}

/* Firebase UI success styles */
.firebaseui-container .firebaseui-card-content .firebaseui-success {
  color: var(--color-success);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--border-radius);
  padding: var(--spacing-sm) var(--spacing-md);
  margin: var(--spacing-sm) 0;
  font-size: 0.875rem;
}

/* Firebase UI loading styles */
.firebaseui-container .firebaseui-card-content .firebaseui-loading {
  text-align: center;
  padding: var(--spacing-lg);
  color: var(--color-text-secondary);
}

/* Hide Firebase UI default styling that conflicts */
.firebaseui-container .firebaseui-card {
  background: transparent;
  border: none;
  box-shadow: none;
  margin: 0;
  padding: 0;
}

.firebaseui-container .firebaseui-card-content {
  background: transparent;
  border: none;
  box-shadow: none;
  margin: 0;
  padding: 0;
}

/* Custom auth buttons fallback */
.custom-auth-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.custom-auth-buttons.hidden {
  display: none !important;
}

/* Show custom buttons if Firebase UI fails to load */
.firebaseui-container:empty + .custom-auth-buttons {
  display: flex !important;
}

/* ======================================
   ADD HTML MODAL (for notes integration)
   ====================================== */

/* Fullscreen HTML selector without modal overlay */
.html-selector-fullscreen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-surface);
  z-index: 2500;
  opacity: 0;
  transform: translateX(-100%);
  transition: all 0.3s ease;
  overflow: hidden;
}

.html-selector-fullscreen.open {
  opacity: 1;
  transform: translateX(0);
}

.html-selector-content {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.html-selector-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  flex-shrink: 0;
}

.html-selector-close {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  font-size: 1.5rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.html-selector-close:hover {
  background: var(--color-surface);
  color: var(--color-text-on-surface);
}

.html-selector-body {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* Hide floating button when HTML selector is open */
.html-selector-fullscreen.open ~ .note-explorer-toggle,
body:has(.html-selector-fullscreen.open) .note-explorer-toggle {
  display: none !important;
}

/* HTML code item styles */
.html-code-item {
  padding: 12px;
  margin: 8px 0;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  width: 100%;
  box-sizing: border-box;
}

.html-code-item:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-button);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Styles pour le modal HTML */
.html-selector-modal {
  border-radius: 12px;
  overflow: hidden;
}

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

.html-selector-modal .modal-close:hover {
  background: var(--color-surface) !important;
}

/* Styles pour les items HTML dans le modal */
#html-codes-list .html-code-item.selected {
  border-color: var(--color-button);
  background: var(--color-surface-alt);
  box-shadow: 0 0 0 2px var(--color-button);
}

.html-code-item h3 {
  margin: 0 0 4px 0;
  white-space: normal !important;
  word-wrap: break-word !important;
  overflow-wrap: break-word !important;
  overflow: visible !important;
  max-width: 100% !important;
  font-size: 1rem !important;
  line-height: 1.4 !important;
}

.html-code-item p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

/* Styles pour le modal de sélection HTML */
.html-selector-modal .modal-content {
  max-width: 900px !important;
}

#confirm-add-html-btn {
  transition: all 0.3s ease;
}

#confirm-add-html-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

#confirm-add-html-btn:active {
  transform: translateY(0);
}

/* Aperçu HTML */
#html-preview iframe {
  min-height: 400px;
}