/* Design System Ultra Professionnel - Résil Rapide */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

/* Variables CSS Professionnelles */
:root {
  /* Couleurs Corporate */
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* Couleurs Brand */
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-800: #1e40af;
  --blue-900: #1e3a8a;
  
  /* Couleurs Success */
  --green-50: #f0fdf4;
  --green-100: #dcfce7;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --green-700: #15803d;
  
  /* Couleurs Warning/Error */
  --red-500: #ef4444;
  --red-600: #dc2626;
  --yellow-400: #facc15;
  --yellow-500: #eab308;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* Shadows */
  --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);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: var(--gray-900);
  background-color: var(--gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.2;
}

.text-white { color: var(--white) !important; }
.text-gray-50 { color: var(--gray-50) !important; }
.text-gray-100 { color: var(--gray-100) !important; }
.text-gray-200 { color: var(--gray-200) !important; }
.text-gray-300 { color: var(--gray-300) !important; }
.text-gray-400 { color: var(--gray-400) !important; }
.text-gray-500 { color: var(--gray-500) !important; }
.text-gray-600 { color: var(--gray-600) !important; }
.text-gray-700 { color: var(--gray-700) !important; }
.text-gray-800 { color: var(--gray-800) !important; }
.text-gray-900 { color: var(--gray-900) !important; }

.text-blue-500 { color: var(--blue-500) !important; }
.text-blue-600 { color: var(--blue-600) !important; }
.text-blue-700 { color: var(--blue-700) !important; }
.text-blue-800 { color: var(--blue-800) !important; }

.text-green-500 { color: var(--green-500) !important; }
.text-green-600 { color: var(--green-600) !important; }
.text-green-700 { color: var(--green-700) !important; }

.text-red-500 { color: var(--red-500) !important; }
.text-red-600 { color: var(--red-600) !important; }

.text-yellow-400 { color: var(--yellow-400) !important; }
.text-yellow-500 { color: var(--yellow-500) !important; }

/* Background Colors */
.bg-white { background-color: var(--white) !important; }
.bg-gray-50 { background-color: var(--gray-50) !important; }
.bg-gray-100 { background-color: var(--gray-100) !important; }
.bg-gray-200 { background-color: var(--gray-200) !important; }
.bg-gray-800 { background-color: var(--gray-800) !important; }
.bg-gray-900 { background-color: var(--gray-900) !important; }

.bg-blue-50 { background-color: var(--blue-50) !important; }
.bg-blue-100 { background-color: var(--blue-100) !important; }
.bg-blue-500 { background-color: var(--blue-500) !important; }
.bg-blue-600 { background-color: var(--blue-600) !important; }
.bg-blue-700 { background-color: var(--blue-700) !important; }

.bg-green-50 { background-color: var(--green-50) !important; }
.bg-green-100 { background-color: var(--green-100) !important; }
.bg-green-500 { background-color: var(--green-500) !important; }
.bg-green-600 { background-color: var(--green-600) !important; }

/* Gradients Professionnels */
.gradient-hero {
  background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-900) 100%);
}

.gradient-primary {
  background: var(--blue-600);
}

.gradient-success {
  background: var(--green-600);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  box-shadow: var(--shadow-lg);
}

.nav-link {
  color: var(--gray-700);
  text-decoration: none;
  font-weight: 500;
  padding: var(--space-2) var(--space-3);
  transition: color 0.2s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--blue-600);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--blue-600);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 100%;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  font-size: 0.875rem;
  line-height: 1;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-primary {
  background: var(--blue-600);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--blue-700);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-success {
  background: var(--green-600);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

.btn-success:hover {
  background: var(--green-700);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  background: var(--gray-50);
  border-color: var(--blue-600);
  color: var(--blue-600);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.2);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: 1rem;
}

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card-interactive {
  cursor: pointer;
}

.card-active {
  border-color: var(--blue-600);
  background: var(--blue-50);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: var(--space-2);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  transition: all 0.2s ease;
  background: var(--white);
  color: var(--gray-900);
}

.form-input:focus {
  outline: none;
  border-color: var(--blue-600);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

/* Category & Provider Cards */
.category-card, .provider-card {
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--gray-900);
  font-weight: 600;
}

.category-card:hover, .provider-card:hover {
  border-color: var(--blue-500);
  background: var(--blue-50);
  box-shadow: var(--shadow-md);
}

.category-card.selected, .provider-card.selected {
  border-color: var(--blue-600);
  background: var(--blue-50);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Steps */
.steps {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.step {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--gray-200);
  color: var(--gray-600);
  font-weight: 700;
  font-size: 0.875rem;
  transition: all 0.3s ease;
}

.step.active {
  background: var(--blue-600);
  color: var(--white);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.2);
}

.step.completed {
  background: var(--green-600);
  color: var(--white);
}

.step-connector {
  flex: 1;
  height: 2px;
  background: var(--gray-200);
  position: relative;
  overflow: hidden;
}

.step-connector.active::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background: var(--blue-600);
  animation: fillProgress 0.5s ease;
}

@keyframes fillProgress {
  from { width: 0; }
  to { width: 100%; }
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--gray-200);
}

.faq-trigger {
  width: 100%;
  padding: var(--space-6);
  background: none;
  border: none;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.2s ease;
}

.faq-trigger:hover {
  color: var(--blue-600);
}

.faq-icon {
  transition: transform 0.3s ease;
  color: var(--gray-400);
}

.faq-trigger[aria-expanded="true"] .faq-icon {
  transform: rotate(180deg);
  color: var(--blue-600);
}

.faq-content {
  overflow: hidden;
  transition: all 0.3s ease;
  max-height: 0;
}

.faq-content.expanded {
  max-height: 500px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success {
  background: var(--green-100);
  color: var(--green-700);
  border: 1px solid var(--green-200);
}

.badge-info {
  background: var(--blue-100);
  color: var(--blue-700);
  border: 1px solid var(--blue-200);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  box-shadow: var(--shadow-lg);
}

.mobile-menu.active {
  display: block;
  animation: slideDown 0.3s ease;
}

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

/* Animations */
.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

.slide-up {
  animation: slideUp 0.6s ease forwards;
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .steps {
    justify-content: center;
  }
  
  .step-connector {
    display: none;
  }
}

/* Utilities */
.text-shadow {
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.loading {
  position: relative;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Ensure no white on white issues */
.text-white {
  color: var(--white) !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Force proper contrast */
.bg-white * {
  color: var(--gray-900);
}

.bg-gray-50 * {
  color: var(--gray-900);
}

/* Override any problematic classes */
.text-white\/80,
.text-white\/90 {
  color: var(--white) !important;
  opacity: 1 !important;
}
}