body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #1e3c72, #2a5298);
  color: #ffffff;
}
header {
  position: fixed;
  width: 100%;
  background: rgba(0, 0, 0, 0.6);
  padding: 20px;
  display: flex;
  justify-content: center;
  z-index: 1000;
}
nav a {
  color: #ffffff;
  margin: 0 15px;
  text-decoration: none;
  transition: color 0.3s;
}
nav a:hover {
  color: #1cb5e0;
}
.container {
  padding: 100px 20px 50px 20px;
  max-width: 1200px;
  margin: auto;
}
h1, h2, h3, h4 {
  text-shadow: 0 0 10px rgba(28, 181, 224, 0.8);
}
.card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s;
  padding: 20px;
  margin: 20px 0;
}
.card:hover {
  transform: translateY(-10px);
}
pre {
  background: rgba(0, 0, 0, 0.7);
  padding: 15px;
  border-radius: 5px;
  overflow-x: auto;
  color: #1cb5e0;
}
img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}
th, td {
  border: 1px solid #1cb5e0;
  padding: 10px;
  text-align: left;
}
th {
  background: rgba(28, 181, 224, 0.8);
}
.blur-effect {
  backdrop-filter: blur(5px);
  background: rgba(255, 255, 255, 0.2);
  padding: 10px;
  border-radius: 5px;
}
footer {
  text-align: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.6);
  position: fixed;
  width: 100%;
  bottom: 0;
}
@media (max-width: 768px) {
  .container {
    padding: 80px 10px 70px 10px;
  }
  nav a {
    display: block;
    margin: 10px 0;
  }
}