/**
 * Styles pour le Convertisseur Vol → ICS
 * Design moderne, épuré et responsive
 */

/* === Variables CSS === */
:root {
  /* Couleurs principales */
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  
  --color-success: #16a34a;
  --color-success-dark: #15803d;
  --color-success-light: #22c55e;
  
  --color-danger: #dc2626;
  --color-danger-light: #fecaca;
  
  --color-warning: #f59e0b;
  
  /* Couleurs de fond */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-tertiary: #f1f5f9;
  
  /* Couleurs de texte */
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  
  /* Bordures */
  --color-border: #e2e8f0;
  --color-border-focus: #3b82f6;
  
  /* Espacements */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Tailles */
  --border-radius: 0.5rem;
  --border-radius-sm: 0.375rem;
  --border-radius-lg: 0.75rem;
  
  /* Ombres */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-secondary);
  min-height: 100vh;
}

/* === Container principal === */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

@media (max-width: 768px) {
  .container {
    padding: var(--spacing-md);
  }
}

/* === En-tête === */
.header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  padding: var(--spacing-xl) 0;
}

.title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.025em;
}

.subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.update-notice {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
  color: #1e40af;
  border: 2px solid #3b82f6;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  animation: slideIn 0.5s ease-out;
  box-shadow: 0 4px 6px -1px rgba(59, 130, 246, 0.2);
}

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

.security-notice {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: #dcfce7;
  color: #166534;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 500;
}

@media (max-width: 768px) {
  .title {
    font-size: 2rem;
  }
  
  .subtitle {
    font-size: 1rem;
  }
  
  .update-notice {
    font-size: 0.8rem;
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

/* === Section d'entrée === */
.input-section {
  background: var(--color-bg-primary);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-xl);
}

.input-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.input-label {
  font-size: 1rem;
  color: var(--color-text-primary);
}

.flight-input {
  width: 100%;
  min-height: 300px;
  padding: var(--spacing-md);
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  resize: vertical;
  transition: border-color var(--transition-fast);
  background-color: var(--color-bg-tertiary);
}

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

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

.button-row {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

@media (max-width: 768px) {
  .button-row {
    flex-direction: column;
  }
  
  .input-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
}

/* === Boutons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  flex: 1;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

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

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

.btn-success:hover:not(:disabled) {
  background-color: var(--color-success-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.125rem;
  width: 100%;
}

.btn-small {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.875rem;
}

/* === Messages d'erreur === */
.error-message {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--color-danger-light);
  border: 1px solid var(--color-danger);
  border-radius: var(--border-radius);
  color: var(--color-danger);
  animation: slideDown var(--transition-normal);
}

.error-message.hidden {
  display: none;
}

.error-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.error-content {
  flex: 1;
}

.error-content strong {
  display: block;
  margin-bottom: var(--spacing-xs);
}

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

/* === Section de prévisualisation === */
.preview-section {
  background: var(--color-bg-primary);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  animation: fadeIn var(--transition-normal);
}

.preview-section.hidden {
  display: none;
}

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

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-border);
}

.preview-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.flight-count {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: var(--color-primary);
  color: white;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 600;
}

.flights-preview {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

/* === Carte de réservation === */
.booking-card {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  background-color: var(--color-bg-tertiary);
  transition: box-shadow var(--transition-fast);
}

.booking-card:hover {
  box-shadow: var(--shadow-md);
}

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

.passenger-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.pnr {
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background-color: var(--color-bg-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
}

.flights-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* === Carte de vol === */
.flight-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--color-bg-primary);
  border-radius: var(--border-radius);
  border-left: 4px solid var(--color-primary);
}

.flight-number {
  font-family: 'Courier New', monospace;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  min-width: 80px;
}

.flight-route {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

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

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

.flight-icon {
  font-size: 1.5rem;
  color: var(--color-text-muted);
}

/* === Informations supplémentaires === */
.booking-info {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.booking-info p {
  margin-bottom: var(--spacing-xs);
}

.booking-info strong {
  color: var(--color-text-primary);
}

/* === Section de téléchargement === */
.download-section {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 2px solid var(--color-border);
  text-align: center;
}

.download-hint {
  margin-top: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* === Pied de page === */
.footer {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

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

.footer-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.footer-info {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* === Responsive === */
@media (max-width: 768px) {
  .booking-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
  
  .flight-card {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .flight-number {
    min-width: auto;
  }
}

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

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

.mt-1 {
  margin-top: var(--spacing-md);
}

.mb-1 {
  margin-bottom: var(--spacing-md);
}

/* === Animations === */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.loading {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* === Carte des vols === */
.map-container {
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--color-bg-tertiary);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
}

.map-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.flight-map {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  background: white;
  box-shadow: var(--shadow-sm);
  display: block;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .map-container {
    padding: var(--spacing-md);
  }
  
  .map-title {
    font-size: 1rem;
  }
}