body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #333;
}
header {
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1000px;
  margin: auto;
  padding: 10px 20px;
}
nav img.logo {
  height: 40px;
}
nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #333;
  font-weight: bold;
}
.hero {
  background-size: cover;
  background-position: center;
  color: white;
  padding: 100px 20px;
  text-align: left;
}
.hero h1 {
  font-size: 2.5em;
  margin-bottom: 20px;
}
.section {
  max-width: 900px;
  margin: auto;
  padding: 40px 20px;
}
footer {
  text-align: center;
  font-size: 0.9em;
  color: #666;
  padding: 20px;
  border-top: 1px solid #ddd;
}