.newsletter {
  border-radius: 4px;
  margin-bottom: 20px;
  background: #05063c;
  color: white;
  padding: 1rem 3rem 3.4rem;
}

.newsletter .newsletter-form p {
  font-family: var(--document-sans-serif);
  font-size: 17px;
  font-weight: 400;
}

.newsletter .newsletter-form form {
  display: flex;
  flex-direction: column;
}

.newsletter .newsletter-form form .newsletter-signup {
  box-sizing: border-box;
  height: 4rem;
  line-height: 4rem;
  color: #000;
  font-family: var(--document-sans-serif);
  font-size: 16px;
  padding: 0 2rem;
  width: 100%;
  margin: 0 0 20px 0;
  border: 0;
  border-radius: 4px;
}

.newsletter .newsletter-form form button {
    appearance: none;
    -webkit-appearance: none;
    box-sizing: border-box;
    background: var(--document-red);
    border: 0;
    border-radius: 4px;
    height: 4rem;
    line-height: 4rem;
    font-family: var(--document-sans-serif);
    padding: 0 1.6rem;
    font-size: 15px;
    width: 100%;
    color: #fff;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.1s ease;
}

.newsletter .newsletter-form form button:hover {
    background: var(--document-red-hover);
}

.newsletter .newsletter-form form button:active {
    background: var(--document-red);
    transform: translateY(1px);
}

.newsletter .newsletter-form form button .donut-spinner {
  display: none;
  border: 0.3rem solid rgba(0, 0, 0, 0.1882352941);
  border-left-color: #870000;
  animation: spinner 1.2s linear infinite;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 100%;
  margin-left: 2px;
  position: relative;
  top: 3px;
}

@keyframes spinner {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@media (min-width: 640px) {

.newsletter .newsletter-form form {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .newsletter .newsletter-form form .newsletter-signup {
    margin: 0;
  }

  .newsletter .newsletter-form form button {
    margin: 0 0 0 8px;
    width: unset;
    min-width: fit-content;
  }
}