body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  background: radial-gradient(circle, rgba(52, 73, 94, 1), rgba(189, 195, 199, 0.6));
  color: #ECF0F1;
  line-height: 1.6;
  overflow-x: hidden;
}
header {
  position: relative;
  text-align: center;
  padding: 40px 20px;
  background: linear-gradient(135deg, rgba(236, 112, 99, 0.8), rgba(246, 185, 59, 0.8));
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}
header h1 {
  font-size: 2.5rem;
  font-weight: bold;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: fadeIn 2s ease-in-out;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  padding: 20px;
}
.card {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
  padding: 20px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1), transparent);
  pointer-events: none;
  z-index: 1;
}
.card img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  margin-bottom: 15px;
}
article {
  margin: 40px auto;
  max-width: 1200px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  border-radius: 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
article h2, article h3, article h4 {
  color: #FFA500;
  margin-top: 30px;
}
article pre {
  background: rgba(0, 0, 0, 0.5);
  padding: 15px;
  border-radius: 10px;
  overflow-x: auto;
}
article code {
  color: #FFD700;
  font-size: 0.9em;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
}
th, td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}
th {
  background: rgba(255, 165, 0, 0.3);
  font-weight: bold;
}
@media (max-width: 768px) {
  header h1 {
    font-size: 2rem;
  }
  .grid-container {
    grid-template-columns: 1fr;
  }
  article pre {
    font-size: 0.8em;
  }
}