/* ==========================================
   AXIS PAYMENT DEMO - STYLES MODERNES
   Couleurs Axis : Bleu/Blanc professionnel
   Design responsive, animations fluides
   ========================================== */

:root {
  /* Couleurs Axis */
  --axis-primary: #0066cc;
  --axis-primary-dark: #004d99;
  --axis-primary-light: #3385dd;
  --axis-secondary: #ffffff;
  --axis-accent: #0099ff;

  /* Couleurs neutres */
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --text-light: #999999;
  --bg-primary: #f8f9fa;
  --bg-secondary: #ffffff;
  --border-color: #e1e5e9;
  --shadow-color: rgba(0, 102, 204, 0.1);

  /* Espacement */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  /* Bordures */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;

  /* Ombres */
  --shadow-sm: 0 1px 2px var(--shadow-color);
  --shadow-md: 0 4px 6px var(--shadow-color);
  --shadow-lg: 0 10px 15px var(--shadow-color);
  --shadow-xl: 0 20px 25px var(--shadow-color);

  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

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

body {
  font-family: 'Work Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Layout principal */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Header */
.header {
  background: linear-gradient(135deg, var(--axis-primary) 0%, var(--axis-primary-dark) 100%);
  color: white;
  padding: var(--spacing-xl) 0;
  box-shadow: var(--shadow-lg);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.header h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
}

.header .subtitle {
  font-size: 1rem;
  opacity: 0.9;
  margin: 0;
}

.header .logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.5rem;
  font-weight: 600;
}

/* Navigation */
.nav {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-md) 0;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
  margin: 0;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--axis-primary);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--axis-primary);
}

/* Cartes principales */
.card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  animation: fadeIn var(--transition-slow);
}

.card-header {
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.card-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Formulaire de paiement */
.payment-form {
  max-width: 500px;
  margin: 0 auto;
}

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

.form-label {
  display: block;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 0.9rem;
}

.form-input {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background: var(--bg-secondary);
}

.form-input:focus {
  outline: none;
  border-color: var(--axis-primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-input.error {
  border-color: #dc3545;
}

.form-input.success {
  border-color: #28a745;
}

/* Sélecteur d'opérateur */
.operator-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.operator-option {
  position: relative;
}

.operator-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.operator-label {
  display: block;
  padding: var(--spacing-lg);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  background: var(--bg-secondary);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  font-weight: 500;
}

.operator-label:hover {
  border-color: var(--axis-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.operator-input:checked + .operator-label {
  border-color: var(--axis-primary);
  background: linear-gradient(135deg, var(--axis-primary) 0%, var(--axis-primary-light) 100%);
  color: white;
  box-shadow: var(--shadow-md);
}

.operator-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: var(--spacing-sm);
}

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  min-height: 48px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--axis-primary) 0%, var(--axis-primary-dark) 100%);
  color: white;
  box-shadow: var(--shadow-md);
}

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

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

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

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

.btn-success {
  background: linear-gradient(135deg, #28a745 0%, #218838 100%);
  color: white;
}

.btn-error {
  background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
  color: white;
}

/* États de chargement */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  color: var(--text-secondary);
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top: 2px solid var(--axis-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Messages d'état */
.message {
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  margin: var(--spacing-md) 0;
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  animation: slideIn var(--transition-normal);
}

.message.success {
  background: #d4edda;
  border: 1px solid #c3e6cb;
  color: #155724;
}

.message.error {
  background: #f8d7da;
  border: 1px solid #f5c6cb;
  color: #721c24;
}

.message.info {
  background: #d1ecf1;
  border: 1px solid #bee5eb;
  color: #0c5460;
}

.message.warning {
  background: #fff3cd;
  border: 1px solid #ffeaa7;
  color: #856404;
}

.message-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

/* Section démo opérateurs */
.operators-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin: var(--spacing-xxl) 0;
}

.operator-card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.operator-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.operator-header {
  background: linear-gradient(135deg, var(--axis-primary) 0%, var(--axis-primary-dark) 100%);
  color: white;
  padding: var(--spacing-lg);
  text-align: center;
}

.operator-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.operator-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.operator-body {
  padding: var(--spacing-lg);
}

.operator-description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.operator-features {
  list-style: none;
  margin: 0;
}

.operator-features li {
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.operator-features li:last-child {
  border-bottom: none;
}

.operator-features .check-icon {
  color: #28a745;
  font-weight: bold;
}

/* Pages de résultat */
.result-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.result-card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-xxl);
  text-align: center;
  max-width: 500px;
  width: 100%;
  margin: var(--spacing-md);
  animation: fadeIn var(--transition-slow);
}

.result-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-lg);
}

.result-success .result-icon {
  color: #28a745;
}

.result-error .result-icon {
  color: #dc3545;
}

.result-title {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.result-message {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.transaction-details {
  background: var(--bg-primary);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
  text-align: left;
}

.transaction-details h4 {
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  font-size: 1.1rem;
}

.transaction-details dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--spacing-sm) var(--spacing-md);
  margin: 0;
}

.transaction-details dt {
  font-weight: 600;
  color: var(--text-secondary);
}

.transaction-details dd {
  margin: 0;
  color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .header .container {
    flex-direction: column;
    text-align: center;
  }

  .nav-links {
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
    text-align: center;
  }

  .operators-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .operator-selector {
    grid-template-columns: 1fr;
  }

  .card {
    padding: var(--spacing-lg);
  }

  .result-card {
    padding: var(--spacing-xl);
  }

  .header h1 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
    --spacing-xxl: 2rem;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .card {
    padding: var(--spacing-md);
  }

  .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
  }

  .operator-features li {
    font-size: 0.9rem;
  }
}

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

/* Focus visible pour accessibilité */
.btn:focus-visible,
.form-input:focus-visible,
.operator-label:focus-visible {
  outline: 2px solid var(--axis-accent);
  outline-offset: 2px;
}

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

/* Démarrage rapide */
.quick-start-guide {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.start-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.start-step {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
}

.start-step .step-number {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--axis-primary) 0%, var(--axis-primary-dark) 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  margin: 0 auto var(--spacing-md) auto;
}

.start-step h3 {
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--text-primary);
}

.start-step p {
  margin: 0 0 var(--spacing-md) 0;
  color: var(--text-secondary);
}

.start-step .code-example {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  margin: var(--spacing-md) 0;
  text-align: left;
}

.start-step .code-example code {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.85rem;
  color: var(--text-primary);
  display: block;
  white-space: pre-wrap;
}

.start-step .step-result {
  color: var(--text-light);
  font-size: 0.9rem;
  font-style: italic;
}

.start-summary h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
}

.summary-points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.summary-point {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--bg-secondary);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
}

.summary-point .summary-icon {
  font-size: 1.2rem;
}

.summary-point span {
  font-weight: 500;
  color: var(--text-primary);
}

/* Diagramme de flux */
.flow-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
}

.flow-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border: 2px solid var(--axis-primary-light);
  border-radius: var(--border-radius-lg);
  min-width: 120px;
  text-align: center;
}

.flow-item .flow-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-xs);
}

.flow-item .flow-label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.flow-item small {
  color: var(--text-light);
  font-size: 0.75rem;
  font-weight: normal;
}

.flow-arrow {
  font-size: 1.5rem;
  color: var(--axis-primary);
  font-weight: bold;
}

/* Actions de test */
.test-actions {
  margin: var(--spacing-xl) 0;
}

.test-actions h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.test-options {
  margin-top: var(--spacing-md);
}

.test-options ul {
  margin: var(--spacing-sm) 0 0 0;
  padding-left: var(--spacing-lg);
}

.test-options li {
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
}

/* Cartes de scénario améliorées */
.scenario-card.primary {
  border-color: var(--axis-primary);
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.05) 0%, rgba(0, 153, 255, 0.05) 100%);
}

.scenario-steps {
  margin: var(--spacing-md) 0;
}

.scenario-steps .step {
  background: var(--bg-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  margin-bottom: var(--spacing-xs);
  border-radius: var(--border-radius-sm);
  border-left: 3px solid var(--axis-primary);
  text-align: left;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.scenario-result {
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  font-weight: 500;
  text-align: center;
}

.scenario-result.success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

/* Améliorations responsive */
@media (max-width: 768px) {
  .start-steps {
    grid-template-columns: 1fr;
  }

  .summary-points {
    grid-template-columns: 1fr;
  }

  .flow-diagram {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .flow-arrow {
    transform: rotate(90deg);
  }

  .action-buttons {
    flex-direction: column;
    align-items: center;
  }

  .action-buttons .btn {
    width: 100%;
    max-width: 300px;
  }
}

@media (max-width: 480px) {
  .flow-item {
    min-width: 100px;
    padding: var(--spacing-sm);
  }

  .flow-item .flow-icon {
    font-size: 1.5rem;
  }

  .start-step {
    padding: var(--spacing-md);
  }

  .start-step .step-number {
    width: 35px;
    height: 35px;
    font-size: 0.9rem;
  }
}

/* Print styles */
@media print {
  .btn, .nav, .operator-card:hover, .flow-diagram, .start-steps {
    box-shadow: none !important;
    transform: none !important;
  }

  .flow-arrow {
    color: black !important;
  }
}