.itb-container {
  position: relative;
  display: inline-block;
  width: 100%;
  max-width: 300px;
}

.itb-phone-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
  line-height: 1.5;
  transition: border-color 0.15s ease-in-out;
}

.itb-phone-input:focus {
  outline: none;
  border-color: #007bff;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.itb-phone-input.error {
  border-color: #dc3545;
}

.itb-phone-input.error:focus {
  box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.itb-country-select {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  padding: 0 8px;
  border: none;
  background: transparent;
  cursor: pointer;
}

.itb-phone-input {
  padding-left: 80px;
}