body {
  margin: 0;
  height: 100vh;
  background: linear-gradient(135deg,#0f2027,#203a43,#2c5364);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  font-family: Arial, sans-serif;
  color: #fff;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  padding: 15px 30px;
  display: flex;
  gap: 15px;
  z-index: 1000;
}

.nav-btn {
  padding: 10px 20px;
  background: rgba(108, 92, 231, 0.8);
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  transition: background 0.3s;
}

.nav-btn:hover {
  background: rgba(108, 92, 231, 1);
}

.card {
  background: rgba(255,255,255,0.08);
  padding: 30px;
  border-radius: 16px;
  width: 300px;
  text-align: center;
  backdrop-filter: blur(10px);
}

.btn {
  display: block;
  margin: 15px 0;
  padding: 12px;
  border-radius: 10px;
  text-decoration: none;
  color: #fff;
  background: #6c5ce7;
  border: none;
  cursor: pointer;
  width: 100%;
  font-size: 16px;
}

.telegram {
  background: #0088cc;
}

.wallet {
  background: #f39c12;
}

.note {
  font-size: 12px;
  opacity: 0.7;
  display: block;
  margin-top: 20px;
}