@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@700&family=Open+Sans&display=swap');

body {
  margin: 0;
  font-family: 'Open Sans', sans-serif;
  background: linear-gradient(to bottom, #003366, #66CCCC);
  color: #333333;
  animation: aurora-move 15s linear infinite;
  overflow-x: hidden;
}

@keyframes aurora-move {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

header {
  text-align: center;
  padding: 40px 20px;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h1 {
  font-family: 'Roboto', sans-serif;
  font-weight: bold;
  color: #00A8CC;
  font-size: 2.5rem;
  margin: 0;
}

.container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 20px;
  gap: 20px;
}

.card {
  background: rgba(255, 255, 255, 0.7);
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  padding: 20px;
  width: calc(33.33% - 40px);
  transition: transform 0.3s ease-in-out;
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: scale(1.05);
}

.card img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  margin-bottom: 15px;
}

@media (max-width: 1024px) {
  .card {
    width: calc(50% - 40px);
  }
}

@media (max-width: 768px) {
  .card {
    width: 100%;
  }
}

.article-section {
  background: rgba(255, 255, 255, 0.9);
  padding: 30px;
  margin: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

pre {
  background: #f4f4f4;
  padding: 15px;
  border-radius: 5px;
  overflow-x: auto;
  font-size: 0.9rem;
  color: #333333;
}

footer {
  text-align: center;
  padding: 20px;
  background: rgba(255, 255, 255, 0.8);
  margin-top: 40px;
}