/* ===== Variables ===== */
:root {
  /* Couleurs spécifiques paiement */
  --color-paypal: #003087;
  --color-paypal-light: #e6f0ff;
  --color-bank: #28a745;
  --color-bank-light: #d4edda;
  --color-selected: #0066cc;
  --color-selected-light: #e6f2ff;
  
  /* Spacing - Mobile first */
  --space-xs: 2px;
  --space-sm: 4px;
  --space-md: 8px;
  --space-lg: 12px;
  --space-xl: 16px;
  --space-2xl: 24px;
  
  /* Typography */
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
}

/* ===== Checkout Page Structure ===== */
.checkout-page {
  background: #f5f5f5;
  padding: 8px;
  min-height: 100vh;
}

.checkout-content {
  max-width: 900px;
  margin: 0 auto;
  background: white;
  border-radius: 8px;
  padding: 12px;
}

/* ===== Progress Bar ===== */
.checkout-progress {
  margin-bottom: var(--space-2xl);
  position: relative;
  background: white;
  padding: var(--space-lg);
  border-radius: 8px;
  margin: var(--space-md);
}

.progress-steps {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
  position: relative;
  z-index: 1;
  gap: var(--space-xs);
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  position: relative;
  flex: 1;
  min-width: 0;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #f0f0f0;
  color: #999;
  font-size: var(--font-size-base);
  font-weight: 600;
  border: 2px solid #ddd;
  transition: all 0.3s ease;
  z-index: 2;
  flex-shrink: 0;
}

.step.completed .step-number {
  background: #4caf50;
  color: white;
  border-color: #4caf50;
}

.step.active .step-number {
  background: #2196f3;
  color: white;
  border-color: #2196f3;
  box-shadow: 0 0 0 3px #e3f2fd;
}

.step-label {
  font-size: 11px;
  color: #666;
  text-align: center;
  white-space: nowrap;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

.step.active .step-label {
  color: #2196f3;
  font-weight: 600;
}

.progress-track {
  position: absolute;
  top: 18px;
  left: 50px;
  right: 50px;
  height: 3px;
  background: #ddd;
  z-index: 0;
}

.progress-fill {
  height: 100%;
  background: #4caf50;
  transition: width 0.5s ease;
}

.progress-text {
  text-align: center;
  color: #666;
  font-size: var(--font-size-sm);
  margin-top: var(--space-md);
  margin-bottom: 0;
}

/* ===== Checkout Header ===== */
.checkout-header {
  text-align: center;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid #f0f0f0;
}

.checkout-title {
  font-size: 20px;
  color: #333;
  margin: 0 0 var(--space-sm) 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.step-indicator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 12px;
  background: #2196f3;
  color: white;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.checkout-subtitle {
  color: #666;
  font-size: var(--font-size-base);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.5;
}

/* ===== Payment Form ===== */
.payment-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

/* ===== Payment Methods Grid ===== */
.payment-methods-container {
  margin: 0;
}

.payment-methods-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

/* ===== Payment Method Card ===== */
.payment-method-card {
  background: white;
  border: 2px solid #ddd;
  border-radius: 8px;
  padding: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 8px;
  /* min-height: auto; - Not supported in Firefox 22+ */
  min-height: unset;
}

.payment-method-card:hover {
  border-color: #2196f3;
  background: #f8faff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(33, 150, 243, 0.1);
}

.payment-method-card:focus-within {
  outline: none;
  border-color: #2196f3;
  box-shadow: 0 0 0 3px #e3f2fd;
}

.payment-method-card.is-selected {
  border-color: #2196f3;
  background: #f0f7ff;
  box-shadow: 0 2px 8px rgba(33, 150, 243, 0.15);
}

/* En-tête de la carte */
.payment-card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.payment-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: #f5f5f5;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #666;
  transition: all 0.3s ease;
}

.payment-type-paypal .payment-icon {
  background: #003087;
  color: white;
}

.payment-type-iban .payment-icon {
  background: #28a745;
  color: white;
}

.payment-method-card.is-selected .payment-icon {
  transform: scale(1.08);
}

.payment-svg {
  width: 24px;
  height: 24px;
}

/* Titre et badge */
.payment-title-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

@media (min-width: 480px) {
  .payment-title-wrapper {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.payment-method-name {
  font-size: 16px;
  font-weight: 600;
  color: #333;
  margin: 0;
}

.payment-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 4px 8px;
  background: #e8f5e9;
  color: #2e7d32;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.badge-text {
  display: none;
}

@media (min-width: 480px) {
  .badge-text {
    display: inline;
  }
}

/* Indicateur de sélection */
.payment-selection-indicator {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.selection-circle {
  width: 18px;
  height: 18px;
  border: 2px solid #ccc;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.payment-method-card.is-selected .selection-circle {
  background: #2196f3;
  border-color: #2196f3;
  box-shadow: 0 0 0 4px rgba(33, 150, 243, 0.2);
}

/* Description */
.payment-description {
  color: #666;
  font-size: 14px;
  line-height: 1.4;
  margin: 0;
}

/* Détails du paiement */
.payment-details {
  overflow: visible;
  transition: all 0.3s ease;
  margin-top: 1rem;
}

.payment-details.is-collapsed {
  display: none;
}

.payment-details.is-expanded {
  display: block;
  animation: slideDown 0.3s ease;
}

/* Conteneur détails de paiement */
.payment-details-container {
  margin-top: 1.5rem;
  border-radius: 10px;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border: 1px solid #e0e0e0;
  overflow: hidden;
}

.details-header {
  padding: 1.2rem 1.5rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.details-header h4 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.2rem;
  padding: 1.5rem;
}

.detail-card {
  background: white;
  border: 1px solid #e8e8e8;
  border-radius: 8px;
  padding: 1.4rem;
  transition: all 0.3s ease;
}

.detail-card:hover {
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.2);
  border-color: #667eea;
  transform: translateY(-2px);
}

.iban-card {
  grid-column: auto;
  background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
  border: 2px solid #667eea;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.1);
}

.paypal-card {
  grid-column: auto;
  background: linear-gradient(135deg, #fff8f0 0%, #ffffff 100%);
  border: 2px solid #f39c12;
  box-shadow: 0 2px 8px rgba(243, 156, 18, 0.1);
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.detail-label {
  font-weight: 700;
  color: #555;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.detail-value {
  color: #000;
  word-break: break-word;
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.5;
}

.iban-value {
  font-family: 'Monaco', 'Courier', monospace;
  font-weight: 700;
  letter-spacing: 1px;
  font-size: 1.1rem;
  color: #667eea;
}

.paypal-value {
  font-family: 'Monaco', 'Courier', monospace;
  font-weight: 700;
  font-size: 1.05rem;
  color: #f39c12;
}

/* Bouton copier petit */
.copy-small-btn {
  align-self: flex-start;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 0.7rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.4rem;
  touch-action: manipulation;
}

@media (pointer: coarse) {
  .file-action-btn {
    padding: 8px;
    min-width: 44px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
} 

.copy-small-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.copy-small-btn:active {
  transform: scale(0.95);
}

.copy-small-btn.copied {
  background: linear-gradient(90deg, #10b981, #059669);
  color: #fff;
  box-shadow: none;
}

/* Ancien style pour compatibilité */
.payment-detail-group {
  background: #f9f9f9;
  border-radius: 6px;
  padding: var(--space-md);
  border: 1px solid #eee;
}

.detail-item {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid #eee;
  font-size: 14px;
}

.detail-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.detail-item.highlight {
  background: #f0f0f0;
  padding: var(--space-md);
  border-radius: 4px;
  margin-left: calc(-1 * var(--space-md));
  margin-right: calc(-1 * var(--space-md));
  border: 1px solid #ddd;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

/* Bouton copier */
.copy-btn {
  background: white;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
  color: #666;
  transition: all 0.2s ease;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 36px;
}

.copy-btn:hover {
  background: #e3f2fd;
  color: #2196f3;
  border-color: #2196f3;
}

.copy-btn:active {
  transform: scale(0.95);
}

/* Note de paiement */
.payment-note {
  display: flex;
  gap: 1rem;
  padding: 1.2rem;
  background: #fffce6;
  border-radius: 8px;
  margin-top: 1.5rem;
  border-left: 4px solid #ffc107;
  color: #333;
  font-size: 14px;
}

.payment-note.info-note {
  background: #f0f8ff;
  border-left-color: #667eea;
}

.payment-note.success-note {
  background: #f0fff0;
  border-left-color: #27ae60;
}

.note-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.payment-note p {
  margin: 0;
  line-height: 1.5;
  font-weight: 500;
}

.payment-note p strong {
  font-weight: 700;
  color: #000;
}

/* Bouton détails */
.payment-details-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: transparent;
  border: none;
  color: #2196f3;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  padding: var(--space-sm) 0;
  align-self: flex-start;
  transition: color 0.2s ease;
}

.payment-details-toggle:hover {
  color: #1976d2;
}

.toggle-icon {
  width: 18px;
  height: 18px;
  transition: transform 0.3s ease;
}

.payment-details-toggle[aria-expanded="true"] .toggle-icon {
  transform: rotate(180deg);
}

/* ===== Actions ===== */
.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid #f0f0f0;
}

.btn-action {
  min-height: 48px;
  padding: 12px 20px;
}

@media (min-width: 480px) {
  .form-actions {
    flex-direction: row;
  }
  
  .btn-action {
    min-height: 44px;
    flex: 1;
  }
}

/* ===== Information sécurité ===== */
.payment-security-info {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  background: #f5f5f5;
  border-radius: 8px;
}

@media (min-width: 768px) {
  .payment-security-info {
    grid-template-columns: 1fr 1fr;
  }
}

.security-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.security-item svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: #2196f3;
}

.security-item p {
  margin: 0;
  color: #555;
  font-size: 14px;
  line-height: 1.4;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #4caf50;
  color: white;
  padding: 12px 24px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  opacity: 0;
  transition: all 0.3s ease;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast-icon {
  font-size: 16px;
  line-height: 1;
}

.toast-message {
  font-weight: 500;
  font-size: var(--font-size-base);
}

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

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ===== Responsive ===== */
@media (min-width: 480px) {
  .checkout-page {
    padding: var(--space-lg);
  }
  
  .checkout-content {
    padding: var(--space-xl);
  }
  
  .payment-methods-grid {
    gap: var(--space-lg);
  }
  
  .payment-method-card {
    padding: var(--space-xl);
  }
}

@media (min-width: 768px) {
  .payment-methods-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .step-label.mobile-hidden {
    display: inline;
  }
}

/* ===== États ===== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.global-error {
  margin-top: var(--space-lg);
  animation: slideDown 0.3s ease;
}

/* ===== Alert ===== */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: 4px;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  animation: slideDown 0.3s ease;
}

.alert-error {
  background-color: #ffebee;
  border: 1px solid #ef5350;
  color: #c62828;
}

.alert svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.error-message {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 16px;
  background-color: #ffebee;
  border: 1px solid #ef5350;
  border-radius: 4px;
  color: #c62828;
  font-size: 14px;
  animation: slideDown 0.3s ease;
}

.error-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: #ef5350;
  color: white;
  border-radius: 50%;
  font-size: 12px;
  font-weight: bold;
  flex-shrink: 0;
}

/* ===== Loading ===== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.95);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.loading-overlay.active {
  display: flex;
  animation: fadeIn 0.3s ease forwards;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid #f0f0f0;
  border-top-color: #2196f3;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: #2196f3;
  color: white;
}

.btn-primary:hover {
  background-color: #1976d2;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(33, 150, 243, 0.3);
}

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

.btn-primary:disabled {
  background-color: #ccc;
  color: #999;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background-color: white;
  color: #333;
  border: 2px solid #ddd;
}

.btn-secondary:hover {
  background-color: #f5f5f5;
  border-color: #999;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

.btn-icon {
  font-size: 18px;
  line-height: 1;
}

.btn-text {
  flex: 1;
  text-align: center;
}

/* ===== TABLET & UP (480px) ===== */
@media (min-width: 480px) {
  :root {
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 24px;
    --space-2xl: 32px;
  }
}

/* ===== TABLET & UP (768px) ===== */
@media (min-width: 768px) {
  :root {
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
  }
}

/* ===== Progress Bar ===== */
.checkout-progress {
  margin-bottom: var(--space-2xl);
  position: relative;
}

.progress-steps {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
  position: relative;
  z-index: 1;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  position: relative;
  flex: 1;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-gray-200);
  color: var(--color-gray-600);
  font-size: var(--font-size-base);
  font-weight: 600;
  border: 2px solid var(--color-gray-300);
  transition: all 0.3s ease;
  z-index: 2;
}

.step.completed .step-number {
  background: var(--color-success);
  color: white;
  border-color: var(--color-success);
}

.step.active .step-number {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.step-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  text-align: center;
  white-space: nowrap;
}

.step.active .step-label {
  color: var(--color-primary);
  font-weight: 500;
}

.progress-track {
  position: absolute;
  top: 18px;
  left: 18px;
  right: 18px;
  height: 4px;
  background: var(--color-gray-300);
  z-index: 0;
}

.progress-fill {
  height: 100%;
  background: var(--color-success);
  transition: width 0.5s ease;
}

.progress-text {
  text-align: center;
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
  margin-top: var(--space-md);
}

/* ===== Checkout Header ===== */
.checkout-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.checkout-title {
  font-size: var(--font-size-xl);
  color: var(--color-dark);
  margin-bottom: var(--space-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

@media (min-width: 768px) {
  .checkout-title {
    font-size: var(--font-size-2xl);
    flex-direction: row;
    justify-content: center;
    gap: var(--space-md);
  }
}

.step-indicator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs) var(--space-md);
  background: var(--color-primary);
  color: white;
  border-radius: 20px;
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.checkout-subtitle {
  color: var(--color-gray-600);
  font-size: var(--font-size-base);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.5;
}

/* ===== Payment Methods Grid ===== */
.payment-methods-container {
  margin-bottom: var(--space-2xl);
}

.payment-methods-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

/* ===== Payment Method Card ===== */
.payment-method-card {
  background: white;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.payment-method-card:hover {
  border-color: var(--color-gray-400);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.payment-method-card:focus-within {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.payment-method-card.is-selected {
  border-color: var(--color-selected);
  background: var(--color-selected-light);
  box-shadow: 0 4px 12px rgba(0, 102, 204, 0.15);
}

.payment-type-paypal.is-selected {
  border-color: var(--color-paypal);
  background: var(--color-paypal-light);
}

.payment-type-iban.is-selected {
  border-color: var(--color-bank);
  background: var(--color-bank-light);
}

/* En-tête de la carte */
.payment-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.payment-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-700);
  transition: all 0.3s ease;
}

.payment-type-paypal .payment-icon {
  background: var(--color-paypal);
  color: white;
}

.payment-type-iban .payment-icon {
  background: var(--color-bank);
  color: white;
}

.payment-method-card.is-selected .payment-icon {
  transform: scale(1.1);
}

.payment-svg {
  width: 24px;
  height: 24px;
}

/* Titre et badge */
.payment-title-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

@media (min-width: 480px) {
  .payment-title-wrapper {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.payment-method-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-dark);
  margin: 0;
}

.payment-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-success-light);
  color: var(--color-success);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.badge-text {
  display: none;
}

@media (min-width: 480px) {
  .badge-text {
    display: inline;
  }
}

/* Indicateur de sélection */
.payment-selection-indicator {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.selection-circle {
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-gray-400);
  border-radius: 50%;
  transition: all 0.3s ease;
}

.payment-method-card.is-selected .selection-circle {
  background: var(--color-selected);
  border-color: var(--color-selected);
  box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.2);
}

/* Description */
.payment-description {
  color: var(--color-gray-700);
  font-size: var(--font-size-base);
  line-height: 1.5;
  margin: 0;
}

/* Détails du paiement */
.payment-details {
  overflow: hidden;
  transition: all 0.3s ease;
}

.payment-details.is-collapsed {
  display: none;
}

.payment-details.is-expanded {
  display: block;
  animation: slideDown 0.3s ease;
}

.payment-detail-group {
  background: white;
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border: 1px solid var(--color-gray-300);
}

.detail-item {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-gray-200);
}

.detail-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.detail-item.highlight {
  background: var(--color-gray-100);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  margin-left: calc(-1 * var(--space-md));
  margin-right: calc(-1 * var(--space-md));
  border: 1px solid var(--color-gray-300);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.detail-label {
  font-weight: 600;
  color: var(--color-gray-700);
  min-width: 120px;
}

.detail-value {
  color: var(--color-dark);
  word-break: break-all;
  flex: 1;
}

.iban-value {
  font-family: 'Courier New', monospace;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* Bouton copier */
.copy-btn {
  background: transparent;
  border: 1px solid var(--color-gray-400);
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-sm);
  cursor: pointer;
  color: var(--color-gray-600);
  transition: all 0.2s ease;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 36px;
}

.copy-btn:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.copy-btn:active {
  transform: scale(0.95);
}

/* Note de paiement */
.payment-note {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-warning-light);
  border-radius: var(--radius-md);
  margin-top: var(--space-md);
  border: 1px solid var(--color-warning);
  color: var(--color-gray-800);
}

.note-icon {
  flex-shrink: 0;
  font-size: var(--font-size-lg);
  line-height: 1;
}

.payment-note p {
  margin: 0;
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

/* Bouton détails */
.payment-details-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: transparent;
  border: none;
  color: var(--color-primary);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  padding: var(--space-sm) 0;
  align-self: flex-start;
  transition: color 0.2s ease;
}

.payment-details-toggle:hover {
  color: var(--color-primary-dark);
}

.toggle-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
}

.payment-details-toggle[aria-expanded="true"] .toggle-icon {
  transform: rotate(180deg);
}

/* ===== Actions ===== */
.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin: var(--space-2xl) 0;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-gray-300);
}

.btn-action {
  min-height: 56px;
  padding: var(--space-md) var(--space-xl);
}

/* ===== Information sécurité ===== */
.payment-security-info {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  background: var(--color-gray-100);
  border-radius: var(--radius-lg);
}

@media (min-width: 768px) {
  .payment-security-info {
    grid-template-columns: 1fr 1fr;
  }
}

.security-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.security-item svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

.security-item p {
  margin: 0;
  color: var(--color-gray-700);
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-success);
  color: white;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  opacity: 0;
  transition: all 0.3s ease;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast-icon {
  font-size: var(--font-size-lg);
  line-height: 1;
}

.toast-message {
  font-weight: 500;
  font-size: var(--font-size-base);
}

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

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

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ===== Responsive Breakpoints ===== */

/* Mobile (≥ 480px) */
@media (min-width: 480px) {
  .payment-methods-grid {
    gap: var(--space-lg);
  }
  
  .payment-method-card {
    padding: var(--space-xl);
  }
  
  .form-actions {
    flex-direction: row;
  }
  
  .btn-action {
    min-height: 52px;
  }
}

/* Tablet (≥ 768px) */
@media (min-width: 768px) {
  .payment-methods-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
  }
  
  .step-label.mobile-hidden {
    display: inline;
  }
  
  .btn-action {
    min-height: 48px;
  }
  
  .payment-method-card {
    min-height: 240px;
  }
}

/* Desktop (≥ 1200px) */
@media (min-width: 1200px) {
  .payment-methods-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 900px;
    margin: 0 auto;
  }
  
  .checkout-header {
    margin-bottom: var(--space-2xl);
  }
}

/* ===== États spéciaux ===== */
.payment-method-card:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.payment-method-card.is-selected:focus {
  outline-color: var(--color-selected);
}

.payment-method-card.shake {
  animation: shake 0.5s ease-in-out;
}

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

/* ===== Utilitaires ===== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.global-error {
  margin-top: var(--space-lg);
  animation: slideDown 0.3s ease;
}

/* ===== Styles partagés ===== */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  animation: slideDown 0.3s ease;
}

.alert-error {
  background-color: var(--color-danger-light);
  border: 1px solid var(--color-danger);
  color: var(--color-danger);
}

.alert svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.error-message {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-danger-light);
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-sm);
  color: var(--color-danger);
  font-size: var(--font-size-sm);
  animation: slideDown 0.3s ease;
}

.error-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: var(--color-danger);
  color: white;
  border-radius: 50%;
  font-size: 12px;
  font-weight: bold;
  flex-shrink: 0;
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.loading-overlay.active {
  display: flex;
  animation: fadeIn 0.3s ease forwards;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-gray-300);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-base);
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.btn-secondary {
  background-color: white;
  color: var(--color-gray-800);
  border: 2px solid var(--color-gray-300);
}

.btn-secondary:hover {
  background-color: var(--color-gray-100);
  border-color: var(--color-gray-400);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-icon {
  font-size: var(--font-size-lg);
  line-height: 1;
}

.btn-text {
  flex: 1;
  text-align: center;
}
/* ==================== MOBILE OPTIMIZATIONS ==================== */

@media (max-width: 768px) {
  .payment-method {
    border-radius: 8px;
    margin-bottom: 1rem;
    padding: 1rem;
  }

  .payment-card-header {
    gap: 0.8rem;
  }

  .payment-icon {
    width: 40px;
    height: 40px;
  }

  .payment-method-name {
    font-size: 1rem;
  }

  .payment-badge {
    padding: 0.4rem 0.8rem;
    font-size: 0.75rem;
  }

  .details-grid {
    grid-template-columns: 1fr;
    gap: 0.8rem;
    padding: 1rem;
  }

  .detail-card {
    padding: 1rem;
  }

  .detail-label {
    font-size: 0.7rem;
  }

  .detail-value {
    font-size: 0.95rem;
  }

  .iban-value {
    font-size: 1rem;
    letter-spacing: 0.5px;
  }

  .paypal-value {
    font-size: 0.95rem;
  }

  .payment-note {
    padding: 1rem;
    font-size: 13px;
    gap: 0.8rem;
  }

  .payment-note p {
    margin: 0;
    line-height: 1.4;
  }

  .copy-small-btn {
    padding: 0.4rem 0.6rem;
  }

  .copy-small-btn svg {
    width: 12px;
    height: 12px;
  }
}

@media (max-width: 480px) {
  .payment-method {
    padding: 0.8rem;
  }

  .payment-card-header {
    gap: 0.6rem;
    flex-wrap: wrap;
  }

  .payment-icon {
    width: 36px;
    height: 36px;
  }

  .payment-title-wrapper {
    flex: 1;
    min-width: 0;
  }

  .payment-method-name {
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
  }

  .payment-badge {
    padding: 0.3rem 0.6rem;
    font-size: 0.65rem;
    gap: 0.3rem;
  }

  .payment-badge svg {
    width: 12px;
    height: 12px;
  }

  .payment-badge-text {
    display: none;
  }

  .payment-selection-indicator {
    position: absolute;
    top: 0.8rem;
    right: 0.8rem;
  }

  .details-grid {
    grid-template-columns: 1fr;
    gap: 0.6rem;
    padding: 0.8rem;
  }

  .detail-card {
    padding: 0.8rem;
  }

  .detail-item {
    gap: 0.5rem;
  }

  .detail-label {
    font-size: 0.65rem;
    letter-spacing: 0.3px;
  }

  .detail-value {
    font-size: 0.9rem;
  }

  .iban-value,
  .paypal-value {
    font-size: 0.9rem;
  }

  .copy-small-btn {
    padding: 0.3rem 0.5rem;
  }

  .payment-note {
    padding: 0.8rem;
    font-size: 12px;
    gap: 0.6rem;
    margin-top: 1rem;
  }

  .note-icon {
    width: 16px;
    height: 16px;
    min-width: 16px;
  }

  .details-header {
    padding: 1rem;
  }

  .details-header h4 {
    font-size: 0.9rem;
  }
}