body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
}
header, footer {
  background: #222;
  color: #fff;
  text-align: center;
  padding: 1em 0;
}
nav a {
  color: #fff;
  margin: 0 10px;
  text-decoration: none;
}
.hero {
  padding: 50px;
  text-align: center;
  background: #f4f4f4;
}
section {
  padding: 20px;
  max-width: 800px;
  margin: auto;
}
pre {
  background: #eee;
  padding: 10px;
  overflow-x: auto;
}
.hero-banner {
  background: linear-gradient(135deg, #2c3e50, #3498db);
  color: #fff;
  text-align: center;
  padding: 80px 20px;
  border-radius: 8px;
  margin-bottom: 2em;
}

.hero-content h1 {
  font-size: 2.8em;
  margin: 0 0 15px;
}

.hero-content .tagline {
  font-size: 1.3em;
  margin-bottom: 25px;
  font-weight: 300;
}

.cta-button {
  display: inline-block;
  background: #fff;
  color: #3498db;
  padding: 12px 28px;
  font-size: 1.1em;
  font-weight: bold;
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.25s ease-in-out;
}

.cta-button:hover {
  background: #ecf0f1;
  transform: translateY(-2px);
}