#seller-selector {
  max-width: 800px;
  margin: 50px auto;
}

#seller-selector .card {
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

#seller-selector h2 {
  font-weight: 700;
  color: #222;
}

#seller-selector .btn-outline-warning {
  border: 2px solid #ffb300;
  color: #333;
  transition: all 0.2s;
}

#seller-selector .btn-outline-warning:hover,
#seller-selector .btn-outline-warning:checked {
  background-color: #ffb300;
  color: #fff;
}

#seller-selector a {
  color: #f57c00;
  text-decoration: none;
}

#seller-selector a:hover {
  text-decoration: underline;
}