/* blockchain.css */
body {
  margin: 0;
  font-family: 'Manrope', sans-serif;
  background-color: #f3f6f9;
  color: #2a2a2a;
  line-height: 1.8;
}

.navbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  background: #111;
  padding: 16px 24px;
}

.logo {
  font-size: 1.8rem;
  color: #00e676;
  font-weight: 700;
}

.logo span {
  color: #ff4081;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.nav-links li a {
  color: #ccc;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 4px;
  transition: background 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
  background: #333;
  color: #fff;
}

.hero {
  background: linear-gradient(to right, #2d2d2d, #37474f);
  color: #fff;
  padding: 60px 20px;
  text-align: center;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 12px;
}

.hero span {
  color: #00e676;
}

.hero p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: auto;
}

.blockchain-main {
  max-width: 1100px;
  margin: 40px auto;
  padding: 0 20px;
}

.blockchain-main section {
  margin-bottom: 50px;
}

h2 {
  font-size: 1.8rem;
  color: #212121;
  border-left: 5px solid #00e676;
  padding-left: 10px;
  margin-bottom: 16px;
}

h3 {
  font-size: 1.2rem;
  margin-top: 20px;
  color: #333;
}

ul {
  padding-left: 24px;
  color: #444;
}

p {
  color: #555;
  margin-bottom: 12px;
}

article {
  background-color: #fff;
  padding: 16px 20px;
  border-left: 4px solid #00e676;
  margin-bottom: 20px;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.footer {
  text-align: center;
  padding: 30px 20px;
  background: #111;
  color: #aaa;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .nav-links {
    flex-direction: column;
    gap: 8px;
  }
}