body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  background: radial-gradient(circle, rgb(33, 150, 243), rgb(92, 76, 189));
  color: #fff;
  line-height: 1.6;
  overflow-x: hidden;
}
header {
  position: relative;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: url('https://images.gptkong.com/demo/sample1.png'), linear-gradient(135deg, rgba(76, 175, 80, 0.8), rgba(156, 39, 176, 0.8));
  background-size: cover;
  background-blend-mode: overlay;
}
header h1 {
  font-family: 'Raleway', sans-serif;
  font-weight: bold;
  font-size: 48px;
  color: #fff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}
header p {
  font-size: 18px;
  margin-top: 10px;
  max-width: 600px;
}
.container {
  padding: 20px;
  display: grid;
  gap: 20px;
}
@media (min-width: 768px) {
  .container {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .container {
    grid-template-columns: repeat(3, 1fr);
  }
}
.card {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  padding: 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}
.card img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  margin-bottom: 15px;
}
.article-container {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  border-radius: 10px;
  padding: 20px;
  margin: 20px 0;
}
.article-container h2, .article-container h3 {
  color: #e0f7fa;
}
.article-container pre {
  background: rgba(0, 0, 0, 0.3);
  color: #cfd8dc;
  padding: 15px;
  border-radius: 5px;
  overflow-x: auto;
}
.article-container table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}
.article-container th, .article-container td {
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 10px;
  text-align: left;
}
.footer {
  text-align: center;
  padding: 20px;
  background: linear-gradient(to right, rgba(33, 150, 243, 0.8), rgba(92, 76, 189, 0.8));
  color: #fff;
  font-size: 14px;
}