body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0b1020;
  color: #eaf0ff;
}
.container {
  max-width: 1000px;
  margin: auto;
  padding: 20px;
}
header {
  background: rgba(11,16,32,.9);
  position: sticky;
  top: 0;
  padding: 10px 0;
}
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 15px;
}
nav a {
  color: #7ea2ff;
  text-decoration: none;
}
nav a:hover {
  text-decoration: underline;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: bold;
}
.logo-badge {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, #5b7cfa, #7ea2ff);
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
}
.btn {
  background: linear-gradient(135deg, #5b7cfa, #7ea2ff);
  color: #fff;
  padding: 10px 18px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
}
.btn:hover {
  opacity: 0.9;
}
footer {
  margin-top: 40px;
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,.2);
  text-align: center;
}