/* Mise en page générale */
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f5f7;
  color: #222;
}

.page-header {
  text-align: center;
  padding: 2.5rem 1rem 1.5rem;
  background: #B8860B; /* or ambré */  
  color: #fff;
}

.project-name {
  font-size: 2.2rem;
  margin: 0 0 0.5rem;
}

.project-tagline {
  margin: 0.25rem 0 1rem;
  font-weight: 400;
  font-size: 1rem;
}

.main-content {
  max-width: 900px;
  margin: 0 auto 3rem;
  background: #fff;
  padding: 1.5rem 1.5rem 2.5rem;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.06);
  box-sizing: border-box;
}

/* Boutons */
.btn {
  display: inline-block;
  margin: 0.25rem 0.4rem;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid #fff;
  background: #ffffff20;
  color: #fff;
  text-decoration: none;
  font-size: 0.95rem;
}

.btn:hover {
  background: #fff;
  color: #B8860B;  
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.85rem;
  color: #555;
}

/* Cartes vidéo YouTube */
.video-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 0.5rem 0 1rem;
  padding: 0.6rem;
  border-radius: 8px;
  border: 1px solid #e0e0e0;
  background: #fafafa;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.15s ease, transform 0.15s ease, background 0.15s ease;
}

.video-card:hover {
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
  background: #ffffff;
  transform: translateY(-1px);
}

.video-thumb img {
  display: block;
  width: 160px;
  height: auto;
  border-radius: 6px;
}

.video-info {
  flex: 1;
}

.video-title {
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.video-meta {
  font-size: 0.85rem;
  color: #666;
}

/* Mobile */
@media (max-width: 600px) {
  .main-content {
    padding: 1rem;
  }

  .video-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .video-thumb img {
    width: 100%;
    max-width: 100%;
  }
}

.cover {
  width: 200px;
  max-width: 100%;
  display: block;
  margin: 1em auto;
  border-radius: 6px;

  /* Ombre élégante */
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.20);
}

/* ----- Grille des ebooks ----- */
.ebook-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
}

/* Carte individuelle */
.ebook-card {
  flex: 1 1 280px;         /* min largeur 280px, s'adapte */
  max-width: 360px;
  margin: 1em 0;
  padding: 1.5em;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
  text-align: center;
  box-sizing: border-box;
}

/* Couverture */
.ebook-card .cover {
  width: 200px;
  max-width: 100%;
  margin-bottom: 1em;
  border-radius: 6px;
  display: block;
  margin-left: auto;
  margin-right: auto;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* Contenu texte */
.ebook-title {
  font-size: 1.3em;
  margin: 0.4em 0;
  color: #333;
  font-weight: 700;
}

.ebook-description {
  font-size: 0.98em;
  color: #555;
  margin-bottom: 1em;
}

/* Bouton Amazon */
.ebook-button {
  display: inline-block;
  padding: 0.6em 1.4em;
  background-color: #f5c542; /* doré */
  color: #000;
  font-weight: 600;
  border-radius: 6px;
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.ebook-button:hover {
  background-color: #e0b136;
  transform: translateY(-1px);
}

/* Mobile : les cartes passent l'une sous l'autre */
@media (max-width: 700px) {
  .ebook-grid {
    flex-direction: column;
    align-items: center;
  }

  .ebook-card {
    max-width: 400px;
    width: 100%;
  }
}