/* Variables de couleurs */
:root {
  --primary-color: #1e3a8a;
  --primary-light: #2563eb;
  --secondary-color: #0ea5e9;
  --accent-color: #f97316;
  --light-gray: #f8fafc;
  --dark-gray: #334155;
  --white: #ffffff;
  --shadow: 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);
  --transition: all 0.3s ease;
}

/* Styles généraux */
body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--light-gray);
  color: var(--dark-gray);
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

/* Style pour le menu sur deux lignes */
.nav-pills .nav-link {
  padding: 0.5rem 0.75rem;
  margin: 0 0.25rem;
  min-width: 110px;
  height: 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  font-size: 0.9rem;
  line-height: 1.2;
}

.nav-pills .nav-link div {
  white-space: nowrap;
}

.nav-pills .nav-link.active {
  background-color: var(--primary-color);
}

/* Styles de l'en-tête */
header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  box-shadow: var(--shadow);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-logo {
  margin-right: 15px;
  height: 50px;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

header h1 {
  font-weight: 700;
  font-size: 1.8rem;
  margin: 0;
  color: var(--white);
  letter-spacing: -0.5px;
}

/* Navigation */
nav {
  margin-top: 1rem;
}

.nav-pills .nav-link {
  border-radius: 8px;
  padding: 0.5rem 1rem;
  font-weight: 600;
  transition: var(--transition);
  margin-right: 0.5rem;
  color: rgba(255, 255, 255, 0.9);
}

.nav-pills .nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

.nav-pills .nav-link.active {
  background-color: var(--white);
  color: var(--primary-color);
  box-shadow: var(--shadow);
}

/* Contenu principal */
main {
  padding: 2rem 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Jumbotron */
.jumbotron {
  background-color: var(--white);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
  border-left: 5px solid var(--primary-color);
}

.jumbotron h2 {
  color: var(--primary-color);
  font-weight: 700;
  margin-bottom: 1rem;
}

.jumbotron .lead {
  font-size: 1.2rem;
  color: var(--dark-gray);
}

/* Cartes */
.card {
  border: none;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  overflow: hidden;
  height: 95%;
  background-color: var(--white);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-header {
  background-color: var(--primary-color);
  color: var(--white);
  font-weight: 600;
  padding: 1rem 1.5rem;
  border-bottom: none;
}

.card-header.bg-success {
  background: linear-gradient(135deg, #059669, #10b981) !important;
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  color: var(--primary-color);
  font-weight: 700;
  margin-bottom: 1rem;
}

.card-text {
  color: var(--dark-gray);
  margin-bottom: 1.5rem;
}

.card-footer {
  background-color: transparent;
  border-top: none;
  padding: 1rem 1.5rem;
}

/* Optimiseur de texte */
.options-header {
  background-color: var(--primary-light);
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-weight: 600;
  box-shadow: var(--shadow);
}

.options-section {
  background-color: var(--white);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
  border: 1px solid #e2e8f0;
}

/* Bouton d'optimisation de texte */
#optimize-button {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  font-weight: bold;
  text-transform: uppercase;
  padding: 15px 20px;
  font-size: 1.1rem;
  margin-top: 10px;
  margin-bottom: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: none;
}

#optimize-button:hover {
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
  transform: translateY(-2px);
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

#optimize-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Bouton de génération de contenu pour réseaux sociaux */
#generate-button {
  background: linear-gradient(135deg, #0f766e, #0ea5e9);
  font-weight: bold;
  text-transform: uppercase;
  padding: 15px 20px;
  font-size: 1.1rem;
  margin-top: 10px;
  margin-bottom: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: none;
}

#generate-button:hover {
  background: linear-gradient(135deg, #0e7490, #0284c7);
  transform: translateY(-2px);
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

#generate-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Bouton d'amélioration de post existant */
#improve-button {
  background: linear-gradient(135deg, #be123c, #e11d48) !important;
  font-weight: bold;
  text-transform: uppercase;
  padding: 15px 20px;
  font-size: 1.1rem;
  margin-top: 10px;
  margin-bottom: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: none;
}

#improve-button:hover {
  background: linear-gradient(135deg, #9f1239, #be123c) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

#improve-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Animation de chargement */
#loading-overlay {
  backdrop-filter: blur(3px);
  transition: all 0.3s ease;
}

#loading-overlay .spinner-border {
  animation-duration: 1s;
}

.loading-animation-container {
  background-color: white;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  border-radius: 10px;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

#loading-overlay h5 {
  animation: pulse 2s infinite;
}

/* Boutons */
.btn {
  border-radius: 8px;
  padding: 0.5rem 1.5rem;
  font-weight: 600;
  transition: var(--transition);
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

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

.btn-primary:hover {
  background-color: var(--primary-light);
  border-color: var(--primary-light);
  box-shadow: var(--shadow);
}

.btn-outline-primary {
  color: var(--primary-color);
  border-color: var(--primary-color);
}

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

/* Zone de glisser-déposer pour les images */
.drop-zone {
  border: 2px dashed var(--secondary-color);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background-color: rgba(14, 165, 233, 0.05);
}

.drop-zone:hover {
  background-color: rgba(14, 165, 233, 0.1);
}

.drop-zone.active {
  background-color: rgba(14, 165, 233, 0.15);
  border-color: var(--primary-color);
}

.drop-zone p {
  color: var(--dark-gray);
  font-weight: 500;
}

/* Styles pour les résultats de conversion */
.converted-image-card {
  margin-bottom: 1.5rem;
}

.converted-image-card img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

/* Styles pour le bouton de conversion d'image */
.image-converter-btn {
  margin-bottom: 20px;
  padding: 12px 20px;
  font-size: 1.1rem;
  font-weight: bold;
  text-transform: uppercase;
}

/* Assurer que le conteneur du bouton a suffisamment d'espace */
.image-converter-container {
  margin-bottom: 30px;
}

/* Badges */
.badge {
  font-weight: 600;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
}

.badge.bg-primary {
  background-color: var(--secondary-color) !important;
}

/* Liste */
.list-group-item {
  border: none;
  border-radius: 8px !important;
  margin-bottom: 0.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  padding: 0.75rem 1rem;
}

/* Footer */
footer {
  background-color: var(--white);
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  padding: 1.5rem 0;
  margin-top: 3rem;
  color: var(--dark-gray);
}

/* Responsive */
@media (max-width: 768px) {
  header h1 {
    font-size: 1.5rem;
  }
  
  .nav-pills .nav-link {
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
  }
  
  .jumbotron {
    padding: 1.5rem;
  }
  
  .card-body {
    padding: 1.2rem;
  }
}