.phone-field {
  display: flex;
  gap: 0.6rem;
  width: 100%;
  align-items: center;
  flex-wrap: nowrap;
}

.phone-field__code,
.phone-field__number {
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 0.85rem;
  background: rgba(255, 255, 255, 0.92);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.phone-field__code {
  padding-inline: 0.75rem;
  font-weight: 700;
  color: var(--title-color);
  min-height: 3.35rem;
  flex: 0 0 28%;
  max-width: 28%;
}

.phone-field__number {
  min-height: 3.35rem;
  flex: 1 1 auto;
}

.phone-field__code:focus,
.phone-field__number:focus {
  border-color: var(--first-color);
  box-shadow: 0 0 0 0.2rem rgba(185, 156, 90, 0.16);
  transform: translateY(-1px);
}

.phone-field__help {
  display: block;
  margin-top: 0.45rem;
  color: var(--text-color-light);
  font-size: 0.875rem;
  line-height: 1.6;
}

.phone-field__error {
  display: block;
  color: #c53030;
  font-size: 0.84rem;
  margin-top: 0.2rem;
}

@media (max-width: 360px) {
  .phone-field {
    flex-direction: column;
    align-items: stretch;
  }

  .phone-field__code {
    max-width: 100%;
    flex: none;
  }
}