body {
  font-family: "Poppins", Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f8fafc;
  color: rgb(58, 8, 133);
}

/* Conteneur global */
.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

/* === HEADER / NAVIGATION === */
.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.brand {
  font-weight: 600;
  font-size: 1.3rem;
  color: rgb(58, 8, 133);
  text-decoration: none;
  transition: color 0.3s ease;
}

.brand:hover {
  color: rgb(58, 8, 133);
}

.main-nav a {
  color:rgb(58, 8, 133);
  text-decoration: none;
  margin: 0 0.8rem;
  font-weight: 500;
  transition: color 0.3s;
}

.main-nav a:hover {
  color:rgb(58, 8, 133);
}

.main-nav .active {
  color:rgb(58, 8, 133) ;
  border-bottom: 2px solid rgb(58, 8, 133);
  padding-bottom: 4px;
}


.main-nav .cta {
  background: rgb(58, 8, 133);
  color: #fff;
  padding: 0.5rem 0.9rem;
  border-radius: 10px;
  font-weight: 500;
}
.main-nav .cta:hover {
  background-color:rgb(58, 8, 133);
}


/* === PAGE BLOCKCHAIN === */
.blockchain-page {
  padding: 4rem 0;
}

/* Hero */
.blockchain-page .hero {
  text-align: center;
  margin-bottom: 4rem;
}

.blockchain-page .hero h1 {
  font-size: 2.6rem;
  margin-bottom: 1rem;
}

.blockchain-page .hero p {
  max-width: 700px;
  margin: auto;
  font-size: 1.1rem;
  color :rgb(58, 8, 133);
}

/* Contenu */
.blockchain-page .content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

/* Cartes */
.blockchain-page .card {
  background: #ffffff;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.blockchain-page .card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.blockchain-page .card h2 {
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.blockchain-page .card p,
.blockchain-page .card li {
  color: #475569;
  line-height: 1.6;
}

.blockchain-page .card ul {
  padding-left: 1.2rem;
}





/* Container général */
.blockchain-section {
  padding: 60px 20px;
  background: #f8f9fa;
  font-family: 'Segoe UI', sans-serif;
  text-align: center;
}

.blockchain-section h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  color: rgb(58, 8, 133);
}

.blockchain-section .intro {
  font-size: 1.1rem;
  margin-bottom: 40px;
  color: rgb(58, 8, 133);
}

/* Conteneur de blocs */
.blocks {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

/* Chaque bloc */
.block {
  background: white;
  border-radius: 15px;
  padding: 20px;
  width: 300px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}

.block h2 {
  margin-bottom: 15px;
  color: rgb(58, 8, 133);
}

.block ul {
  list-style: none;
  padding: 0;
  text-align: left;
  color: rgb(58, 8, 133);
}

.block ul li {
  margin-bottom: 8px;
}

/* Animation au survol */
.block:hover {
  transform: translateY(-10px) scale(1.05);
  box-shadow: 0 15px 25px rgba(0,0,0,0.2);
}

/* Conclusion */
.conclusion {
  margin-top: 40px;
  font-size: 1.1rem;
  color: #34495e;
}

/* Responsive */
@media (max-width: 1000px) {
  .blocks {
    flex-direction: column;
    align-items: center;
  }
}

/* Bouton lien */
.veille .card a {
  display: inline-block;
  margin-top: 1.2rem;
  text-decoration: none;
  color: white;
  background: #2563eb;
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  font-size: 0.85rem;
}

/* === FOOTER === */
.site-footer {
  background-color: rgb(58, 8, 133);
  color: #f1f5f9;
  text-align: center;
  padding: 1rem 0;
  margin-top: 3rem;
}