/* General Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  color: #333;
  line-height: 1.6;
}

/* Container */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* Header */
header {
  background-color: #007a4d;
  padding: 20px 0;
  color: white;
  text-align: center;
}

header nav ul {
  list-style: none;
}

header nav ul li {
  display: inline;
  margin: 0 15px;
}

header nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

/* Hero Section */
#hero {
  background: linear-gradient(135deg, #009688, #007a4d);
  color: white;
  text-align: center;
  padding: 60px 0;
}

#hero h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

/* Call-to-action Button */
.cta-button {
  background-color: #00bfae;
  color: white;
  padding: 15px 30px;
  text-decoration: none;
  font-size: 1.2rem;
  border-radius: 5px;
  display: inline-block;
}

/* About, Roadmap, and Articles Section */
section {
  padding: 40px 0;
  text-align: center;
}

h2 {
  font-size: 2rem;
  margin-bottom: 30px;
}

h3 {
  font-size: 1.5rem;
  margin-top: 20px;
}

ul {
  list-style: none;
  padding: 0;
}

ul li {
  margin: 10px 0;
}

.article {
  background: white;
  border-radius: 5px;
  padding: 20px;
  margin: 20px 0;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

/* Footer */
footer {
  background-color: #333;
  color: white;
  text-align: center;
  padding: 20px 0;
}

footer a {
  color: #00bfae;
  text-decoration: none;
  margin: 0 10px;
}

/* Contact Section */
#contact ul {
  text-align: left;
  list-style: none;
  padding: 0;
}

#contact ul li {
  margin-bottom: 10px;
}

/* Responsive Design */
@media (max-width: 768px) {
  header nav ul li {
    display: block;
    margin: 10px 0;
  }
  
  #hero h2 {
    font-size: 1.8rem;
  }

  .cta-button {
    padding: 12px 25px;
    font-size: 1rem;
  }
}