/* Styles pour la page d'accueil */
:root {
  --primary-color: #2C3E50;
  --primary-dark: #1A252F;
  --secondary-color: #18BC9C;
  --gray-50: #F9FAFB;
  --gray-200: #E5E7EB;
  --gray-600: #4B5563;
  --gray-800: #1F2937;
}

.welcome-container {
  padding: 4rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

/* Styles pour les boutons d'authentification */
.auth-buttons {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.auth-buttons .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 0.375rem;
  font-weight: 500;
  transition: all 0.2s ease-in-out;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
}

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

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

.auth-buttons .btn-secondary {
  background-color: white;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.auth-buttons .btn-secondary:hover {
  background-color: var(--gray-50);
  transform: translateY(-1px);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Styles pour les cartes de fonctionnalités */
.features {
  margin-top: 4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  padding: 0 1rem;
}

.feature-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--gray-200);
  border-radius: 0.5rem;
  overflow: hidden;
  background: white;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.feature-card.animate-fade-in {
  opacity: 1;
  transform: translateY(0);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 
              0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.feature-icon {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  font-size: 2.5rem;
  transition: transform 0.3s ease;
}

.feature-card h3 {
  color: var(--gray-800);
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.feature-card p {
  color: var(--gray-600);
  line-height: 1.6;
  margin: 0;
}

/* Animation pour les icônes */
.feature-card:hover .feature-icon {
  animation: bounce 0.5s ease;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

/* Animation de fondu au défilement */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-fade-in {
  opacity: 1;
  transform: translateY(0);
}

/* Styles pour les boutons actifs */
.btn.active {
  transform: scale(0.95);
  transition: transform 0.1s ease;
}

/* Responsive */
@media (max-width: 768px) {
  .welcome-container {
    padding: 2rem 1rem;
  }
  
  .features {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 0;
  }
  
  .auth-buttons {
    flex-direction: column;
    gap: 1rem;
  }
  
  .auth-buttons .btn {
    width: 100%;
    margin: 0;
  }
}