body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #111;
  color: #fff;
  text-align: center;
}

.app {
  max-width: 400px;
  margin: auto;
  padding: 40px 20px;
}

.logo {
  width: 180px;
  margin-bottom: 20px;
}

button {
  font-size: 20px;
  padding: 12px 30px;
  border: none;
  border-radius: 8px;
  background: #e53935;
  color: white;
  cursor: pointer;
}

button:active {
  opacity: 0.8;
}

.tagline {
  opacity: 0.8;
  margin-bottom: 30px;
}

.links {
  margin-top: 25px;
}

.btn {
  display: inline-block;
  margin: 8px;
  padding: 12px 22px;
  border-radius: 8px;
  text-decoration: none;
  color: white;
  font-size: 16px;
}

.whatsapp {
  background: #25D366;
  font-weight: bold;
}
.whatsapp {
  text-decoration: none;
}