/* declaration.css - Styles pour le formulaire de déclaration d'impôts */

/* ==========================================================================
   VARIABLES ET CONFIGURATION
   ========================================================================== */
:root {
  /* Couleurs principales */
  --color-primary: #3b82f6;
  --color-primary-dark: #2563eb;
  --color-primary-light: #60a5fa;
  --color-primary-bg: #eff6ff;
  
  /* Couleurs secondaires */
  --color-secondary: #10b981;
  --color-secondary-dark: #059669;
  --color-secondary-light: #34d399;
  
  /* Couleurs d'état */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;
  
  /* Couleurs neutres */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  
  /* Typographie */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Espacements */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  
  /* Bordures */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  
  /* Animations */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  
  /* Ombres */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  
  /* Largeurs */
  --max-width-form: 800px;
  --sidebar-width: 300px;
}

/* ==========================================================================
   RÉINITIALISATION ET BASE
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family-base);
  color: var(--color-gray-800);
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  line-height: 1.6;
  min-height: 100vh;
}

/* ==========================================================================
   CONTAINER PRINCIPAL
   ========================================================================== */
.declaration-container {
  max-width: var(--max-width-form);
  margin: 0 auto;
  padding: var(--space-8);
  position: relative;
}

/* Header du formulaire */
.form-header {
  text-align: center;
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-8);
  border-bottom: 2px solid var(--color-gray-200);
  position: relative;
}

.form-header::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  border-radius: 2px;
}

.form-title {
  font-family: var(--font-family-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-gray-900);
  margin-bottom: var(--space-2);
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.form-subtitle {
  font-size: 1.125rem;
  color: var(--color-gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   ÉTAPES ET PROGRESSION
   ========================================================================== */
.progress-container {
  margin-bottom: var(--space-8);
  position: relative;
}

.progress-bar {
  display: flex;
  justify-content: space-between;
  position: relative;
  padding: 0 var(--space-4);
}

.progress-bar::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50px;
  right: 50px;
  height: 3px;
  background-color: var(--color-gray-200);
  transform: translateY(-50%);
  z-index: 1;
}

.progress-fill {
  position: absolute;
  top: 50%;
  left: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: translateY(-50%);
  z-index: 2;
  transition: width var(--transition-slow) ease;
}

.progress-step {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100px;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: white;
  border: 3px solid var(--color-gray-300);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--color-gray-500);
  transition: all var(--transition-base);
  margin-bottom: var(--space-2);
  box-shadow: var(--shadow-sm);
}

.progress-step.active .step-number {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

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

.step-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-gray-500);
  text-align: center;
  transition: color var(--transition-base);
}

.progress-step.active .step-label {
  color: var(--color-primary);
  font-weight: 700;
}

/* ==========================================================================
   SECTIONS DU FORMULAIRE
   ========================================================================== */
.form-section {
  background: white;
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  margin-bottom: var(--space-8);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-gray-100);
  transform: translateY(0);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.form-section:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), 0 25px 50px -12px rgba(0, 0, 0, 0.08);
}

.section-header {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--color-gray-100);
}

.section-title {
  font-family: var(--font-family-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.section-title i {
  color: var(--color-primary);
  background: var(--color-primary-bg);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.section-subtitle {
  color: var(--color-gray-600);
  margin-top: var(--space-2);
  font-size: 0.875rem;
}

/* ==========================================================================
   CHAMPS DE FORMULAIRE
   ========================================================================== */
.form-group {
  margin-bottom: var(--space-6);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
  transition: color var(--transition-base);
}

.form-label.required::after {
  content: ' *';
  color: var(--color-error);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: 1rem;
  font-family: var(--font-family-base);
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  background-color: white;
  color: var(--color-gray-800);
  transition: all var(--transition-base);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  transform: translateY(-1px);
}

.form-input:hover:not(:focus),
.form-select:hover:not(:focus),
.form-textarea:hover:not(:focus) {
  border-color: var(--color-gray-400);
}

.form-input::placeholder {
  color: var(--color-gray-400);
}

/* États d'erreur et succès */
.form-input.error,
.form-select.error {
  border-color: var(--color-error);
  background-color: rgba(239, 68, 68, 0.02);
}

.form-input.success,
.form-select.success {
  border-color: var(--color-success);
  background-color: rgba(16, 185, 129, 0.02);
}

.error-message {
  display: none;
  font-size: 0.75rem;
  color: var(--color-error);
  margin-top: var(--space-2);
  align-items: center;
  gap: var(--space-2);
}

.error-message.show {
  display: flex;
}

.success-message {
  display: none;
  font-size: 0.75rem;
  color: var(--color-success);
  margin-top: var(--space-2);
  align-items: center;
  gap: var(--space-2);
}

.success-message.show {
  display: flex;
}

/* ==========================================================================
   CASES À COCHER ET BOUTONS RADIO
   ========================================================================== */
.checkbox-group,
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.checkbox-item,
.radio-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-gray-50);
  border-radius: var(--radius-md);
  border: 2px solid var(--color-gray-200);
  transition: all var(--transition-base);
  cursor: pointer;
  flex: 1;
  min-width: 200px;
}

.checkbox-item:hover,
.radio-item:hover {
  border-color: var(--color-gray-300);
  background-color: var(--color-gray-100);
  transform: translateY(-1px);
}

.checkbox-item input[type="checkbox"],
.radio-item input[type="radio"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.checkbox-item input[type="checkbox"]:checked + label,
.radio-item input[type="radio"]:checked + label {
  color: var(--color-primary);
  font-weight: 600;
}

.checkbox-item input[type="checkbox"]:checked ~ .checkbox-item,
.radio-item input[type="radio"]:checked ~ .radio-item {
  border-color: var(--color-primary);
  background-color: rgba(59, 130, 246, 0.05);
}

/* ==========================================================================
   TÉLÉVERSEMENT DE FICHIERS
   ========================================================================== */
.file-upload-area {
  border: 3px dashed var(--color-gray-300);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  background-color: var(--color-gray-50);
  transition: all var(--transition-base);
  cursor: pointer;
  margin-bottom: var(--space-6);
}

.file-upload-area:hover {
  border-color: var(--color-primary);
  background-color: rgba(59, 130, 246, 0.02);
  transform: translateY(-2px);
}

.file-upload-area.dragover {
  border-color: var(--color-primary);
  background-color: rgba(59, 130, 246, 0.1);
  transform: scale(1.02);
}

.upload-icon {
  font-size: 3rem;
  color: var(--color-gray-400);
  margin-bottom: var(--space-4);
  transition: color var(--transition-base);
}

.file-upload-area:hover .upload-icon {
  color: var(--color-primary);
}

.file-list {
  margin-top: var(--space-4);
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  background-color: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  transition: all var(--transition-base);
}

.file-item:hover {
  border-color: var(--color-gray-300);
  box-shadow: var(--shadow-sm);
  transform: translateX(2px);
}

.file-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex: 1;
}

.file-icon {
  font-size: 1.25rem;
  color: var(--color-gray-500);
}

.file-name {
  font-weight: 500;
  color: var(--color-gray-700);
}

.file-size {
  font-size: 0.75rem;
  color: var(--color-gray-500);
}

.file-remove {
  background: none;
  border: none;
  color: var(--color-gray-400);
  cursor: pointer;
  padding: var(--space-1);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.file-remove:hover {
  color: var(--color-error);
  background-color: rgba(239, 68, 68, 0.1);
}

/* ==========================================================================
   RÉSUMÉ
   ========================================================================== */
.summary-container {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  border: 2px solid var(--color-gray-200);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
}

.summary-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-sm);
}

.summary-card h4 {
  font-family: var(--font-family-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--color-gray-100);
}

.summary-item {
  display: flex;
  justify-content: space-between;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-gray-100);
}

.summary-item:last-child {
  border-bottom: none;
}

.summary-label {
  color: var(--color-gray-600);
  font-size: 0.875rem;
}

.summary-value {
  color: var(--color-gray-800);
  font-weight: 500;
  text-align: right;
}

/* ==========================================================================
   BOUTONS
   ========================================================================== */
.button-group {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 2px solid var(--color-gray-200);
}

.btn {
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-family-heading);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  text-decoration: none;
  min-width: 140px;
}

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

.btn-primary {
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
}

.btn-secondary {
  background-color: white;
  color: var(--color-gray-700);
  border: 2px solid var(--color-gray-300);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--color-gray-400);
  background-color: var(--color-gray-50);
  transform: translateY(-1px);
}

.btn-submit {
  background: linear-gradient(90deg, var(--color-secondary), var(--color-secondary-dark));
  color: white;
  width: 100%;
  padding: var(--space-4);
  font-size: 1.125rem;
  box-shadow: var(--shadow-md);
}

.btn-submit:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(90deg, var(--color-secondary-dark), var(--color-secondary));
}

.btn-loading {
  opacity: 0.8;
  cursor: wait;
}

/* ==========================================================================
   ALERTES ET NOTIFICATIONS
   ========================================================================== */
.alert {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: 1000;
  max-width: 400px;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  box-shadow: var(--shadow-xl);
  transform: translateX(120%);
  transition: transform var(--transition-slow) cubic-bezier(0.34, 1.56, 0.64, 1);
  border-left: 4px solid;
}

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

.alert-success {
  background-color: white;
  border-left-color: var(--color-success);
  color: var(--color-gray-800);
}

.alert-error {
  background-color: white;
  border-left-color: var(--color-error);
  color: var(--color-gray-800);
}

.alert-warning {
  background-color: white;
  border-left-color: var(--color-warning);
  color: var(--color-gray-800);
}

.alert-info {
  background-color: white;
  border-left-color: var(--color-info);
  color: var(--color-gray-800);
}

.alert-icon {
  font-size: 1.25rem;
}

.alert-close {
  background: none;
  border: none;
  color: var(--color-gray-500);
  cursor: pointer;
  padding: var(--space-1);
  margin-left: auto;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.alert-close:hover {
  color: var(--color-gray-700);
  background-color: var(--color-gray-100);
}

/* ==========================================================================
   ANIMATIONS ET TRANSITIONS
   ========================================================================== */
.form-step {
  animation: slideIn 0.5s ease forwards;
  opacity: 0;
  transform: translateX(20px);
}

.form-step.active {
  opacity: 1;
  transform: translateX(0);
}

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

.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

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

.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
  }
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 768px) {
  .declaration-container {
    padding: var(--space-4);
  }
  
  .form-title {
    font-size: 2rem;
  }
  
  .progress-step {
    width: 60px;
  }
  
  .step-number {
    width: 32px;
    height: 32px;
    font-size: 0.875rem;
  }
  
  .step-label {
    font-size: 0.625rem;
  }
  
  .form-section {
    padding: var(--space-6) var(--space-4);
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .checkbox-item,
  .radio-item {
    min-width: 100%;
  }
  
  .button-group {
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .summary-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .form-title {
    font-size: 1.75rem;
  }
  
  .section-title {
    font-size: 1.25rem;
  }
  
  .file-upload-area {
    padding: var(--space-4);
  }
  
  .alert {
    left: var(--space-4);
    right: var(--space-4);
    max-width: none;
  }
}

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

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

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

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.bg-gray-50 { background-color: var(--color-gray-50); }
.bg-gray-100 { background-color: var(--color-gray-100); }
.bg-primary-light { background-color: var(--color-primary-light); }

.text-primary { color: var(--color-primary); }
.text-gray-600 { color: var(--color-gray-600); }
.text-gray-700 { color: var(--color-gray-700); }

.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }

/* ==========================================================================
   INDICATEUR DE CHARGEMENT
   ========================================================================== */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

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

/* ==========================================================================
   BADGES ET INDICATEURS
   ========================================================================== */
.badge {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

.badge-info {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--color-info);
}

/* ==========================================================================
   TOOLTIPS
   ========================================================================== */
.tooltip {
  position: relative;
  display: inline-block;
  cursor: help;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-gray-800);
  color: white;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 100;
}

.tooltip::before {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--color-gray-800);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 100;
}

.tooltip:hover::after,
.tooltip:hover::before {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-5px);
}

.hidden-step {
    display: none !important;
}

.child-entry {
    transition: all 0.3s ease;
}

#child-navigation {
    transition: all 0.3s ease;
}

.form-step {
    transition: all 0.3s ease;
}

.form-step.active {
    display: block;
}

.form-step:not(.active) {
    display: none;
}