/* ===========================================
   KADIMA - DESIGN SYSTEM
   Yéshiva Kadima - Yéchouot Yossef
   =========================================== */

/* --- CSS Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Couleurs principales */
  --color-primary: #1a365d;
  --color-primary-light: #2c5282;
  --color-primary-dark: #0f2137;
  --color-secondary: #d69e2e;
  --color-secondary-light: #ecc94b;
  
  /* Couleurs d'état */
  --color-success: #38a169;
  --color-warning: #dd6b20;
  --color-error: #e53e3e;
  --color-info: #3182ce;
  
  /* Neutres */
  --color-white: #ffffff;
  --color-gray-50: #f7fafc;
  --color-gray-100: #edf2f7;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e0;
  --color-gray-400: #a0aec0;
  --color-gray-500: #718096;
  --color-gray-600: #4a5568;
  --color-gray-700: #2d3748;
  --color-gray-800: #1a202c;
  --color-gray-900: #171923;
  
  /* Typographie */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-hebrew: 'Heebo', 'Inter', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* Espacements */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  
  /* 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);
  
  /* Bordures */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

/* --- Mode sombre (optionnel) --- */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: var(--color-gray-900);
    --color-surface: var(--color-gray-800);
    --color-text: var(--color-gray-100);
    --color-text-muted: var(--color-gray-400);
  }
}

/* --- Global Styles --- */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-700);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
}

/* --- Typographie --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-gray-800);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

/* --- Container Principal --- */
.container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-4);
}

/* --- Carte Formulaire --- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.card-header {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-6) var(--spacing-8);
  text-align: center;
}

.card-header h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-2);
}

.card-header p {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-sm);
}

.card-body {
  padding: var(--spacing-8);
}

/* --- Logo --- */
.logo {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-4);
  display: block;
}

/* --- Progress Bar --- */
.progress-container {
  padding: var(--spacing-4) var(--spacing-8);
  background: var(--color-gray-50);
  border-bottom: 1px solid var(--color-gray-200);
}

.progress-steps {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.progress-steps::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-gray-200);
  transform: translateY(-50%);
  z-index: 0;
}

.progress-line {
  position: absolute;
  top: 50%;
  left: 0;
  height: 2px;
  background: var(--color-primary);
  transform: translateY(-50%);
  z-index: 1;
  transition: width var(--transition-normal);
}

.step-indicator {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-white);
  border: 2px solid var(--color-gray-300);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-500);
  position: relative;
  z-index: 2;
  transition: all var(--transition-normal);
}

.step-indicator.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.1);
}

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

.step-indicator.completed::after {
  content: '✓';
  font-size: var(--font-size-base);
}

.step-indicator.completed span {
  display: none;
}

/* --- Sections du formulaire --- */
.form-section {
  display: none;
  animation: fadeIn 0.3s ease;
}

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

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

.section-title {
  color: var(--color-primary);
  margin-bottom: var(--spacing-6);
  padding-bottom: var(--spacing-3);
  border-bottom: 2px solid var(--color-secondary);
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.section-title .icon {
  font-size: var(--font-size-2xl);
}

/* --- Groupes de champs --- */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-4);
}

.form-group {
  margin-bottom: var(--spacing-4);
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-2);
  color: var(--color-gray-700);
  font-size: var(--font-size-sm);
}

.form-group label .required {
  color: var(--color-error);
  margin-left: var(--spacing-1);
}

/* --- Champs de formulaire --- */
.form-control {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--font-size-base);
  font-family: inherit;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  transition: all var(--transition-fast);
}

.form-control:hover {
  border-color: var(--color-gray-300);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

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

.form-control.error {
  border-color: var(--color-error);
}

.form-control.success {
  border-color: var(--color-success);
}

textarea.form-control {
  min-height: 100px;
  resize: vertical;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23718096' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6,9 12,15 18,9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-3) center;
  background-size: 18px;
  padding-right: var(--spacing-10);
}

/* --- Messages d'erreur --- */
.error-message {
  color: var(--color-error);
  font-size: var(--font-size-xs);
  margin-top: var(--spacing-1);
  display: none;
}

.form-group.has-error .error-message {
  display: block;
}

/* --- Upload de fichiers --- */
.file-upload {
  border: 2px dashed var(--color-gray-300);
  border-radius: var(--radius-lg);
  padding: var(--spacing-6);
  text-align: center;
  background: var(--color-gray-50);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.file-upload:hover {
  border-color: var(--color-primary);
  background: rgba(26, 54, 93, 0.05);
}

.file-upload.dragover {
  border-color: var(--color-primary);
  background: rgba(26, 54, 93, 0.1);
}

.file-upload input[type="file"] {
  display: none;
}

.file-upload .upload-icon {
  font-size: var(--font-size-4xl);
  color: var(--color-gray-400);
  margin-bottom: var(--spacing-2);
}

.file-upload .upload-text {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
}

.file-upload .upload-hint {
  color: var(--color-gray-400);
  font-size: var(--font-size-xs);
  margin-top: var(--spacing-1);
}

.file-preview {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-2);
}

.file-preview .file-name {
  flex: 1;
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
}

.file-preview .remove-file {
  color: var(--color-error);
  cursor: pointer;
  font-size: var(--font-size-lg);
}

/* --- Boutons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-base);
  font-weight: 500;
  font-family: inherit;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

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

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

.btn-secondary {
  background: var(--color-gray-200);
  color: var(--color-gray-700);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-gray-300);
}

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

.btn-success:hover:not(:disabled) {
  background: #2f855a;
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-lg);
}

/* --- Navigation du formulaire --- */
.form-navigation {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-8);
  padding-top: var(--spacing-6);
  border-top: 1px solid var(--color-gray-200);
}

/* --- Checkbox et Radio --- */
.checkbox-group,
.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.checkbox-item,
.radio-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  cursor: pointer;
}

.checkbox-item input,
.radio-item input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--color-primary);
}

.checkbox-item label,
.radio-item label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  cursor: pointer;
}

/* --- Info box --- */
.info-box {
  background: rgba(49, 130, 206, 0.1);
  border-left: 4px solid var(--color-info);
  padding: var(--spacing-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-4);
}

.info-box p {
  color: var(--color-gray-700);
  font-size: var(--font-size-sm);
  margin: 0;
}

.info-box strong {
  color: var(--color-info);
}

/* --- Récapitulatif --- */
.summary-section {
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
  padding: var(--spacing-4);
  margin-bottom: var(--spacing-4);
}

.summary-section h4 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-3);
  font-size: var(--font-size-base);
}

.summary-item {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-2) 0;
  border-bottom: 1px dashed var(--color-gray-200);
  font-size: var(--font-size-sm);
}

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

.summary-item .label {
  color: var(--color-gray-500);
}

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

/* --- Message de succès --- */
.success-message {
  text-align: center;
  padding: var(--spacing-8);
}

.success-message .success-icon {
  width: 80px;
  height: 80px;
  background: var(--color-success);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-6);
  color: var(--color-white);
  font-size: var(--font-size-4xl);
}

.success-message h2 {
  color: var(--color-success);
  margin-bottom: var(--spacing-4);
}

.success-message p {
  color: var(--color-gray-600);
  max-width: 400px;
  margin: 0 auto;
}

/* --- Responsive --- */
@media (max-width: 640px) {
  .container {
    padding: var(--spacing-2);
  }
  
  .card-header {
    padding: var(--spacing-4) var(--spacing-4);
  }
  
  .card-body {
    padding: var(--spacing-4);
  }
  
  .progress-container {
    padding: var(--spacing-3) var(--spacing-4);
  }
  
  .step-indicator {
    width: 28px;
    height: 28px;
    font-size: var(--font-size-xs);
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .form-navigation {
    flex-direction: column;
    gap: var(--spacing-3);
  }
  
  .form-navigation .btn {
    width: 100%;
  }
  
  h1 { font-size: var(--font-size-2xl); }
  h2 { font-size: var(--font-size-xl); }
  h3 { font-size: var(--font-size-lg); }
}

/* --- Animation de chargement --- */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* --- Print --- */
@media print {
  body {
    background: white;
  }
  
  .form-navigation,
  .progress-container {
    display: none;
  }
}