body {
  background: #f0f0f0;
}

.contact-form {
  max-width: 70%;
  margin: 50px auto;
  padding: 20px;
  border: 1px solid #39b766;
  border-radius: 20px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.contact-form .form-group {
  margin-bottom: 15px;
}

.contact-form .form-row {
  display: flex;
  justify-content: space-between;
}

.contact-form .form-row .form-group {
  flex: 0 0 48%;
}

.contact-form .form-control.is-invalid + .error-message {
  display: block;
}

input,
textarea {
  border: 1px solid #39b766 !important;
}

.contact-form .form-control.is-invalid {
  border-color: red !important;
}

.info-box {
  border: 1px solid #39b766;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
  background-color: #fff;
  display: flex;
  flex-direction: column;
}

.info-box h3 {
  margin-top: 0;
  margin-bottom: 15px;
}

@media (max-width: 576px) {
  form {
    padding: 10px;
  }

  .contact-form {
    max-width: 90%;
  }

  .contact-form .form-row {
    display: block;
  }

  .contact-form .form-row .form-group {
    flex: 0 0 100%;
    margin-bottom: 15px;
  }
}