body, html {
  margin: 0;
  padding: 0;
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(180deg, #F5F7FA 0%, #003366 100%);
  color: #fff;
  line-height: 1.6;
  overflow-x: hidden;
}

header {
  text-align: center;
  padding: 40px 20px;
  background: rgba(0, 168, 232, 0.2);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

header h1 {
  font-size: 2.5rem;
  font-weight: bold;
  margin: 0;
  color: #00A8E8;
}

header p {
  font-size: 1rem;
  margin-top: 10px;
  color: #fff;
}

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

.card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  padding: 20px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.2);
}

.card img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  margin-bottom: 15px;
}

.card h3 {
  font-size: 1.2rem;
  margin: 0 0 10px;
  color: #FF9800;
}

.card p {
  font-size: 0.9rem;
  color: #fff;
}

.article-section {
  padding: 40px 20px;
  background: rgba(0, 51, 102, 0.2);
  backdrop-filter: blur(10px);
  margin: 20px 0;
  border-radius: 16px;
}

.article-section h2, .article-section h3 {
  color: #4CAF50;
  margin-top: 20px;
}

.article-section pre {
  background: rgba(0, 0, 0, 0.3);
  padding: 15px;
  border-radius: 8px;
  overflow-x: auto;
  font-family: 'Roboto Mono', monospace;
  font-size: 0.9rem;
  color: #fff;
}

.article-section code {
  color: #FF9800;
}

@media (max-width: 768px) {
  header h1 {
    font-size: 2rem;
  }
  .card {
    padding: 15px;
  }
  .card h3 {
    font-size: 1rem;
  }
  .card p {
    font-size: 0.8rem;
  }
  .article-section pre {
    font-size: 0.8rem;
  }
}