body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
  color: #ffffff;
  line-height: 1.6;
  overflow-x: hidden;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 255, 128, 0.3);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
}

header h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 24px;
  color: #00ff80;
  text-transform: uppercase;
}

header nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}

header nav ul li a {
  color: #ffffff;
  text-decoration: none;
  font-size: 16px;
  transition: color 0.3s ease;
}

header nav ul li a:hover {
  color: #00ff80;
}

.main-container {
  margin-top: 80px;
  padding: 20px;
}

.section-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 32px;
  color: #00ff80;
  text-align: center;
  margin-bottom: 30px;
}

.grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.card {
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(0, 255, 128, 0.2);
  border-radius: 10px;
  padding: 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0, 255, 128, 0.5);
}

.card img {
  width: 100%;
  height: auto;
  border-radius: 5px;
  margin-bottom: 10px;
}

.card h3 {
  font-size: 20px;
  color: #00ff80;
  margin-bottom: 10px;
}

.card p {
  font-size: 14px;
  color: #dcdcdc;
}

.button {
  display: inline-block;
  background-color: #1e1e1e;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  transition: box-shadow 0.3s ease;
  cursor: pointer;
}

.button:hover {
  box-shadow: 0 0 15px 5px #00ff80;
}

.article-section {
  background: rgba(0, 0, 0, 0.7);
  border-radius: 10px;
  padding: 20px;
  margin-top: 20px;
}

.article-section h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 28px;
  color: #00ff80;
  margin-bottom: 20px;
}

.article-section h3 {
  font-size: 22px;
  color: #ffffff;
  margin-top: 20px;
}

.article-section pre {
  background: #0f0c29;
  color: #00ff80;
  padding: 10px;
  border-radius: 5px;
  overflow-x: auto;
}

@media (max-width: 768px) {
  header .container {
    flex-direction: column;
    gap: 10px;
  }

  .grid-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  header h1 {
    font-size: 20px;
  }

  header nav ul {
    flex-direction: column;
    gap: 5px;
  }

  .section-title {
    font-size: 24px;
  }

  .card h3 {
    font-size: 18px;
  }

  .card p {
    font-size: 12px;
  }
}