.rb-form {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  padding: 28px;
  position: relative;
  overflow: hidden;
}
.rb-form::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, #10b981 0%, #3b82f6 100%);
}
.rb-form .form-label {
  font-weight: 600;
  color: #0f172a;
}
.rb-form .form-control,
.rb-form .form-select,
.rb-form textarea {
  background: #ffffff;
  border-color: #e2e8f0;
  border-radius: 12px;
  padding: 0.8rem 0.95rem;
  font-size: 0.95rem;
}
.rb-form .form-control::placeholder,
.rb-form textarea::placeholder {
  color: #94a3b8;
}
.rb-form .form-control:focus,
.rb-form .form-select:focus,
.rb-form textarea:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.rb-form .rb-form-message {
  border-radius: 12px;
}
.rb-form .rb-form-actions {
  justify-content: flex-start;
}
.rb-form .rb-form-actions .btn-primary {
  background: linear-gradient(90deg, #10b981 0%, #3b82f6 100%);
  border: none;
  color: #ffffff;
  border-radius: 999px;
  padding: 0.7rem 1.6rem;
  font-weight: 600;
  box-shadow: 0 12px 26px rgba(37, 99, 235, 0.25);
}
.rb-form .rb-form-actions .btn-primary:hover,
.rb-form .rb-form-actions .btn-primary:focus {
  background: linear-gradient(90deg, #0ea574 0%, #2563eb 100%);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 16px 32px rgba(37, 99, 235, 0.3);
}
@media (max-width: 767.98px) {
  .rb-form {
    padding: 20px;
  }
}