body {
  margin: 0;
  padding: 0;
  background: #000;
  font-family: Arial, sans-serif;
  color: white;
  text-align: center;
}

.header {
  padding: 25px 10px;
  background: #111;
}

.logo {
  width: 160px;
  margin-bottom: 10px;
}

.tagline {
  opacity: .8;
  margin-top: -10px;
}

h2 {
  margin-top: 40px;
  font-size: 26px;
}

.card {
  background: rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 15px;
  margin: 15px auto;
  width: 300px;
  backdrop-filter: blur(3px);
}

.card img {
  width: 100%;
  border-radius: 10px;
}

.btn {
  background: #1e90ff;
  padding: 10px 20px;
  border-radius: 10px;
  color: white;
  text-decoration: none;
  font-weight: bold;
}

footer {
  margin-top: 40px;
  padding: 20px;
  background: #111;
  opacity: .9;
}