body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background: #F9FAFB;
  color: #0B0C28;
}
header, footer {
  background: #0B0C28;
  color: white;
  padding: 20px;
  text-align: center;
}
.container {
  max-width: 700px;
  margin: 40px auto;
  padding: 20px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}
h1 {
  color: #9333EA;
}
.cta-button {
  display: inline-block;
  background: #00B5FF;
  color: white;
  padding: 14px 24px;
  border: none;
  border-radius: 8px;
  font-weight: bold;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s ease;
  margin-top: 20px;
}
.cta-button:hover {
  background: #9333EA;
}
.crypto-box {
  background: #F1F1F1;
  padding: 15px;
  border-radius: 12px;
  margin-top: 30px;
}
.crypto-box img {
  width: 120px;
  margin-top: 10px;
}
footer small {
  display: block;
  margin-top: 10px;
  color: #CCC;
  font-size: 0.8rem;
}