/* Variables CSS */
:root {
  --primary: #4285F4;
  --primary-dark: #3367D6;
  --muted: #6b7280;
  --light: #f9fafb;
  --dark: #111827;
}

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

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

/* Classes d'animation */
.animate-fade-in {
  animation: fadeIn 1s ease-out forwards;
}

.animate-fade-in-up {
  animation: fadeIn 0.8s ease-out, slideInUp 0.8s ease-out;
  animation-fill-mode: both;
}

.delay-100 {
  animation-delay: 0.1s;
}

.delay-200 {
  animation-delay: 0.2s;
}

.delay-300 {
  animation-delay: 0.3s;
}

/* Styles personnalisés */
html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  color: var(--dark);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Navigation */
.sticky-nav {
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* Cartes */
.card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Boutons */
.btn {
  display: inline-block;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: 9999px;
  transition: all 0.2s ease-in-out;
  cursor: pointer;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

/* Section */
.section {
  padding: 6rem 0;
}

/* Images */
.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Reveal Animation */
.reveal {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
  transform: translateY(20px);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  .section {
    padding: 4rem 0;
  }
  
  .hero-content {
    padding-top: 6rem;
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}

/* Smooth scrolling for anchor links */
html {
  scroll-behavior: smooth;
}

/* Focus styles */
a:focus, button:focus, input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

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

/* Custom form styles */
input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #e5e7eb;
  border-radius: 0.375rem;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.2);
}

/* Custom checkbox */
.custom-checkbox {
  position: relative;
  padding-left: 2rem;
  cursor: pointer;
  user-select: none;
}

.custom-checkbox input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkmark {
  position: absolute;
  top: 0;
  left: 0;
  height: 1.5rem;
  width: 1.5rem;
  background-color: #fff;
  border: 2px solid #d1d5db;
  border-radius: 0.25rem;
  transition: all 0.2s;
}

.custom-checkbox:hover input ~ .checkmark {
  border-color: var(--primary);
}

.custom-checkbox input:checked ~ .checkmark {
  background-color: var(--primary);
  border-color: var(--primary);
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}

.custom-checkbox input:checked ~ .checkmark:after {
  display: block;
}

.custom-checkbox .checkmark:after {
  left: 0.5rem;
  top: 0.25rem;
  width: 0.4rem;
  height: 0.8rem;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}